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PROJECT SAGAR DARSHAN HOTEL, SOMNATH

DOCUMENT TITLE

SCOPE OF WORK MAKES OF MATERIAL

AND GENERAL SPECIFICATIONS

DOCUMENT NO. SPECS-SITC/00

CONTENTS

SR. NO. DESCRIPTION PAGE NO

PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 ABBREVIATION 3 1.04 ELECTRICAL AND ELV SYSTEM DESCRIPTION 5 1.05 GENERAL DESIGN CRITERIA 7 1.06 DRAWINGS AND DOCUMENTATION REQUIREMENTS 11 1.07 APPROVED MAKES 12 1.08 APPROVED VENDORS 13

RECORD OF REVISIONS

R0 01/01/19 ISSUED FOR TENDERING JPP KGJ

REV DATE DESCRIPTION PREPARED BY CHECKED BY

PROJECT : SAGAR DARSHAN HOTEL, SOMNATH DOC NO.: SPECS-SITC/0

DOCUMENT : TECHNICAL SPECS FOR ELECTRICAL SYSTEMS REV NO: R0


PART – 1 (GENERAL) 1.01 SCOPE OF WORK

A The scope of work is intended to cover engineering, design, supply F.O.R. site, erection,

testing and commissioning of total Electrical package required to be installed for efficient, reliable, trouble-free and safe operation of the RESIDENTIAL TOWNSHIP to be set up at Jodhpur, Rajasthan state. A package unit for the purpose of this specification means “Individual items of equipment mounted on one or more skid bases which operate together to perform a particular function”.

The technical specification for the electrical equipment includes the basic technical data for respective equipment. The Tenderer shall consider this data for the price bid purpose. However, for offering a best cost effective design and/or fulfilling the contractual obligations, should the Tenderer want to offer alternatives as deemed fit, the same shall be offered separately duly supported by the detailed reasons and justification. Once the agreement is reached and the contract shall be awarded, no changes shall be permitted during the execution.

Though, this specification covers the general as well as specific requirements for the electrical equipment, final specific requirements (interlocks, protection, instruments, alarms, etc.) shall be considered as per the Technical Data Sheets, attached with respective specification, and Data Sheets to be filled by the Tenderer. The final document shall be included as part of the Purchase Order.

1.02 CODES & STANDARDS

A The Electrical System engineering, design, equipment, material and execution, i.e. entire electrical installation, shall comply with all applicable Codes, Standards and Regulations, amended till the date of tender, unless otherwise indicated in this technical specification. In general, following Codes, Standards and Regulations shall be applied.

i. Indian Codes and Standards published by Bureau of Indian (IS) Standards

ii. International Electro-technical Commission (IEC) Standards

iii. Institute of Electrical & Electronics Engineers (IEEE) Standards

iv. British Standards (BS)

v. Deutsche Institute Normale (DIN)

vi. Occupational Safety and Health Authority (OSHA)

vii. National Fire Protection Association (NFPA)

viii. The Indian Electricity Rules, 1956 (Amended up to 2002)

ix. National Electrical Code (NEC, Bureau of Indian Standards Publication)

x. Fire Insurance Regulations

xi. Tariff Advisory Committee Regulations

xii. The Health and Safety at Work Act

xiii. Central and State Government Acts and Rules




B In addition to the above mentioned standards, the bidder shall follow the guidelines as specified in,

1. State Government Regulations

C Details of applicable standards are included in the respective technical specification. It is not intent to mention all the relevant standards applicable to the proposed work and equipment. Any relevant Indian Standard, whether it is provided or not, shall be made applicable as per requirement of the work and equipment.

D Details of approved electrical equipment and brought out component manufacturers are provided in the Section follows. Alternative equipment shall be used only after obtaining written approval from the Purchaser.

E The Tenderer shall be responsible to be, or to become, knowledgeable of the requirements of these Standards and Codes. Any alternations or changes to the equipment to make it meet Standards and Codes requirements shall be at the expense of the Tenderer.

F A broad statement that any equipment being supplied is generally in accordance with this Specification or any part of it shall not be acceptable. Any exceptions, deviations or omissions from this Specification proposed by the Tenderer shall be itemized from this quotation and acceptance shall be subject to approval by the Purchaser before commencement of manufacture.

G Items specified or referred by manufacturer’s name or number are intended to describe the type and quality level of equipment desired and are not intended to be restrictive or exclude equivalent items by other manufacturers unless it is indicated that only the specified item will be accepted. Actual equipment selection shall be made in strict accordance with procurement policies established for this project.

H Compliance by the Tenderer with the provisions of this specification shall not relieve the Tenderer of the responsibility of furnishing equipment and components of proper design, electrically and mechanically suited to meet the operating requirements under the specified service conditions and be suitable for the purpose for which they are intended.

I The Tenderer should seek clarification on any aspect of the Specification, where it is believed that obscurity or ambiguity exists in the meaning or intent stated. Where a conflict occurs between the Tenderer’s standard, this Specification and the Purchase Order/Technical Data Sheets, the following shall apply in order of preference:

Purchase Order/Technical Data Sheets This Specification National Standard/International Standard Manufacturer’s/Tenderer’s practice

1.03 ABBREVIATIONS

A For the purpose of this specification, the abbreviations for various electrical terms, units, etc. are used in the technical specification as follows.

SR. NO. ABBREVIATION MEANING 1 A Ampere 2 AC Alternating Current 3 ACB Air Circuit Breaker 4 ACDB Air Condition Distribution Board




5 AHU Air Handling Unit 6 AL Aluminium 7 AMF Auto Mains Failure 8 APFCR Automatic Power Factor Correction Relay 9 ATS Automatic Transfer Switch 10 BMS Building Management System 11 CAT-6 Universal Twisted Pair(UTP) Data Cable 12 CBS Central Battery System 13 CCTV Closed Circuit Television 14 CT Current Transformer 15 Cu Copper 16 DB Distribution Board 17 DC Direct Current 18 DDC Direct Digital Controller 19 DF Diversity Factor 20 DG Diesel Generator 21 DMC Double Moulded Compound 22 DO Drop Out Fuses 23 DP Double Pole 24 EB Electricity Board 25 EF Earth Fault 26 ELCB Earth Leakage Circuit Breaker 27 ELDB Emergency Lighting Distribution Board 28 ELV Extra Low Voltage 29 EPABX Electronic Private Automatic Branch Exchange 30 FP Four Pole 31 FR Flame Retardant 32 FRLS Flame Retardant Low Smoke 33 FSP Fuse Section Pillar 34 GI Galvanized Iron 35 GO Gang Operated Switch 36 HP Horse Power 37 HV High Tension (3.3 kV And Higher Voltage Level) 38 HVAC Heating Ventilation and Air conditioning 39 Hz Hertz, Frequency In Cycles Per Second 40 IBMS Integrated Building Management System 41 IDMT Inverse Definite Minimum Time 42 IP Internet Protocol 43 IP X Ingress Protection 44 JDA Jodhpur Development Authority 45 kA Kilo-Ampere 46 kV Kilo-Volt 47 kVA Kilovolt Ampere Apparent 48 kVAr Kilovolt Ampere Reactive 49 kW Kilo Watt 50 kWh Kilowatt Hour




51 LDB Lighting Distribution Board 52 LED Light Emitting Diode

53 LED/HPSV/MH/FTL/

CFL Type of Light fixtures

54 LP Lighting Panel 55 LPS Lightning Protection System 56 LT Low Tension (650 V And Lower Voltage Level) 57 LV Low Voltage 58 LV/LT Low Voltage / Low Tension 59 mA Milli-Ampere 60 MCB Miniature Circuit Breaker 61 MCB Miniature Circuit Breaker 62 MCCB Moulded Case Circuit Breaker 63 MDB Main Distribution Board 64 MH Manhole 65 mm Milli-Meter 66 MS Mild Steel 67 MSP Miniature Section Pillar 68 mV Milli-Volt 69 MV / HV Medium Voltage / High Voltage 70 MVA Megavolt Ampere 71 N Neutral 72 OC Over Current 73 OCB Bulk Oil Circuit Breaker 74 P.F. Power Factor 75 PA Public Address 76 PA Public Address 77 PDB Power Distribution Board 78 PF Power Factor 79 Ph Phase 80 PLC Programmable Logic Controller 81 PT Potential Transformer 82 PVC Poly Vinyl Chloride 83 R (L1)/Y(L2)/B(L3) Red Phase / Yellow Phase / Blue Phase 84 RCC Reinforced Cement Concrete 85 RCCB Residual Current Circuit Breaker

86 RG-59, RG-11, RG-

6 Type of co-axial cables for video signals

87 RMU Ring Main Unit 88 RS232/RS485 Communication Protocol 89 SLD Single Line Diagram 90 SLDB Sub Lighting Distribution Board 91 SMDB Sub Main Distribution Board 92 SMPDB Sub Main Power Distribution Board 93 SP / SPN Single Pole / Single Pole & Linked Neutral 94 SPD Surge Protective Device 95 TNS Separate Neutral and Protective conductors




throughout system 96 TP / TPN Triple Pole / Triple Pole & Linked Neutral 97 TPN Triple Pole with Neutral 98 TV/CCTV Closed Circuit Television 99 UPS Uninterrupted Power Supply 100 UTP Unshielded Twisted Pair 101 V Volt 102 XLPE Cross Linked Polyethylene

1.04 ELECTRICAL AND ELV SYSTEM DESCRIPTION (SCOPE OF WORK)

A Existing Sagar Darshan Hotel, Somnath Trust is to be renovated. There are three wings of the hotel. It is proposed to have 3 phases of constructions wing wise viz. left, middle and right side wings. The scope of this tender is limited to the renovation process of Left wing for FF, SF & TF. However, entire GF will be renovated along with left wing. The scope under this tender is for Electrical and ELV works and as follows.

B SEB Scope:

No scope is envisage at this stage. Existing SEB connection, transformer & main panel will be utilised to cater the demand.

Contractor’s Scope: 1 Read and understand tender documents. 2 Carrying out soil resistivity test at site prior to start work. Report shall be submitted

to consultant/client for records. 3 SITC of Electrical power distribution network as per load sheet, drawings, BOQ &

specifications issued along with this document. 4 SITC of Power Distribution panels LV Power networks & DBs including liason &

approval from authority for Left wing along with complete GF. 5 SITC of LV & ELV cable network. 6 SITC of Illumination system & lighting circuit distribution scheme 7 SITC of voice and data communication network 8 SITC of earthing network for

Electrical equipments, Panel, DB and body ELV network

9 SITC of CCTV system 10 SITC of Lightning protection to applicable areas 11 SITC of Surge protection device installations 12 Man-power deployment and material management at site as per project time line.

Preparation, submission and taking approval of schedule of activities. 13 Co-ordination with other agencies working at site. 14 Preparation of submission of shop drawings for approval from

consultant/client/client’s site-in-charge/SEB/CEI/other govt. authority. 15 Time-to-time approval of each document and material from

consultant/client/client’s site-in-charge/SEB/CEI/other govt. authority 16 Liason in due course for taking approval from respective authorities. 17 Preparation and submission of as-built drawing after successful commissioning of

the work.




C Low voltage system

Refer tender SLD to understand power distribution network. Aluminium/Copper LT XLPE cables as per loading condition will be used from Panels to DBs.

All cables in plant area will be laid through cable trays.

D Standby power

For standby power, centralized Generating Set is already available at site.

E Emergency Power

Inverter backup provision is not envisaged.

F UPS Power

Voice and data network is to be fed through UPS.

G ELV Systems

Following Extra low voltage systems proposed for the township.

- Voice Communication through EPABX for each home

- Data Communication within club and security cabin

- CCTV camera, DVR for security and surveillance at strategic locations.

1.05 GENERAL INSTRUCTION TO CONTRACTOR

A The work shall be carried out in accordance with specification for Electrical Engineering works, Indian Standards, National Building Code. All installation shall comply with the requirements of Indian Electricity Rules-1956 as amended up to date.

B All materials to be arranged by the Agency for use in work must be got approved from the client/consultant well in advance before they are actually brought to site and necessary IS certificates shall be provided whenever called for by the client/consultant.

C In case makes/brands of electrical items stipulated in the individual items in the schedule, the Agency has to supply the materials from these makes/brands only.

D Execution layouts prior to commencement of work shall be prepared by agency and got approved from the client’s Engineer in-Charge/Consultant before commencement of the site activity.

E 4 sets of drawings shall be submitted to client/consultant for approval.

F The agency shall make his own arrangement at his own cost for all General and Electrical tools and tackles required for Electrical Work including testing & measuring equipments.

G Any item remaining unused after completion of work shall be taken back only after obtaining written permission of Engineer-in-Charge by client.

H The contractor shall be paid for the actual quantity of the work executed as measured at the site at the rates tendered. Client/Consultant reserves the right to increase or decrease any quantities, or to omit totally any item of work. Any claim by the Contractor




on these accounts will not be entertained.

I The Contractor shall visit the site and shall satisfy himself as to the conditions under which work is to be performed. They shall also check and ascertain the location of any existing structure or equipment or any other situation which may affect the work. No extra claim as a consequence of ignorance or on ground of insufficient description will be allowed at a later date.

J All equipments shall be inspected at manufacturer’s work as per relevant IS by the client/consultant before dispatch to site of work and all required tests shall be carried out to manufacturers premises and at work site after installation without any additional cost.

H All testing records are to be maintained and submitted to client/consultant duly signed in two copies.

K All devices specifications, ratings shall be referred from respective item specifications, BOQ or drawing.

1.06 GENERAL DESIGN CRITERIA

The electrical equipment to be supplied and the power supply system to be installed shall be designed based on the general design criteria provided hereunder.

Following will be observed during execution of specified scope of work:

Details specified in Drawings will supersede BOQ item detailing. BOQ item detailing will supersede Item specifications.

A SITE CONDITIONS 1. Location : Somnath Temple, Veraval 2. Site elevation : 6 Mtr above mean sea level 3. Ambient : Dry

B CLIMATOLOGICAL DATA

1 Maximum Temperature 45 deg C

2 Design Max. Ambient Temperature (Dry Bulb) 50 deg C

3 Minimum Temperature (Winter Dry Bulb) 08 deg C

4 Minimum Relative Humidity 40%

5 Maximum Relative Humidity at 30.5 deg C 95% (Design basis)

6 Normal Barometric Pressure 1008.2 mbar

7 Maximum Rainfall Average 350 mm/year

8 Design maximum wind velocity 150 km/hour

9 Earthquake Category (Seismic Zone) Zone III, IS 1893 (Part I): 2002

C AREA CLASSIFICATION: Non-hazardous safe as per Hazardous Area Classification




D INCOMING POWER SUPPLY AT PROJECT SITE

1 Voltage at Point of supply 11 KV

2 Frequency 50 Hz

3 Permissible voltage variation ± 10 %

4 Permissible frequency variation ± 3 %

5 Permissible combined voltage & frequency variation

± 6 %

6 Symmetrical Fault Level at Point of supply (Design)

350 MVA

7 Neutral earthing at Point of Supply Grounded

8 Control supply voltage 230 V AC

E EQUIPMENT SERVICE CONDITION:

Equipment installation Indoor : LV Switchboards/PCC/MCC /LDB/PDBs

LV Cable installation : To be laid through cable trays

Telephone cable for voice communication : To be laid through PVC pipes through cable trays

CAT-6/OFC cable for data communication : To be laid through hume-pipe in Ground

Cable installation for Road-Crossing : Strictly through RCC hume pipe with Manholes at both the ends

Man-hole at regular distance shall be provided for cable pulling.

F DISTRIBUTION POWER SUPPLY

1 Distribution voltage and wiring 415 V AC, 50 Hz, 3-ph, 4 wire

2 Short circuit current and its duration on bus 25 kA for 1 sec (Design basis) Refer SLD for exact value

3 Neutral grounding at transformer end Solidly grounded

G CONTROL SUPPLY: AC supply to be derived through control transformer with necessary Fuse/MCB protection

1 Spring charging motor in LV Switchgear 230±5% V AC, 50 Hz, 1-ph & N




2 Space heaters/Illumination in MV & LV panels 230±5% V AC, 50 Hz, 1-ph & N

3 LV FSP/MSP control, indication & protection 230±5% V AC, 50 Hz, 1-ph & N

4 Motor starter control circuits 230±5% V AC, 50 Hz, 1-ph & N

5 Space heater 230±5% V AC, 50 Hz, 1-ph & N

H PERMISSIBLE VOLTAGE DROP FOR ADMIN AREA:

1 From Transformer to MLTP 0.5 % Max.

2 From MLTP to Wing DB 1.5 %

3 From Wing DB to Floor DB 1.5 %

4 From DB to end point 1.5 %

I EARTHING SYSTEM:

1 Soil Resistivity To be measured at site

2 Earthing Station for Equipment Body GI Pipe Type

3 Earth Conductor for Body Earthing GI Strip/Wire/Al Cable

4 Earthing Station for Equipment Neutral Cu Plate Type

5 Earth Conductor for Neutral Earthing Cu Strip/Wire/Cu Cable

J ILLUMINATION SYSTEM:

1 Main Sitting/Gathering space 300 lux (average)

2 General Circulation/Sitting Area 200 lux (average)

3 Passages/Stairs/Lobby 100 lux (average)

4 Area Lighting 10 lux (average)

5 Road Lighting 10 lux (average)

K ILLUMINATION SYSTEM POWER SUPPLY:

1 Lighting power distribution voltage/wiring 415V AC, 50 Hz, 3-ph, 4 wire




2 Short circuit current and its duration on bus 10 kA for 1 sec

3 Final utility at lighting fixtures 230 ± 5% V AC, 50 Hz, 1-ph & N

4 Emergency lighting source DG set for Outdoor lights

Inverter for Residence

5 Emergency lighting voltage and wiring 230 V AC, 50 Hz, 1-ph & N

L RAW POWER SUPPLY SYSTEM:

1 Raw power distribution voltage and wiring 415V AC, 50 Hz, 3-ph, 4 wire

2 Normal power supply source Grid power supply

3 Short circuit current and its duration on bus 10 kA for 1 sec

4 Final utility ay user end

16A socket sockets –

20A socket outlets –



20A AC sockets –

32A AC outlets -

230V ± 5% AC, 50 Hz, 1-ph & N

230V ± 5% AC, 50 Hz, 1-ph & N

415V ± 5% AC, 50 Hz, 3-ph-4 Wire

415V ± 5% AC, 50 Hz, 3-ph-4 Wire

230V ± 5% AC, 50 Hz, 1-ph & N

415V ± 5% AC, 50 Hz, 3-ph-4 Wire

1.07 DRAWINGS AND DOCUMENTATION REQUIREMENTS

Sr. No. Description of Item With

Offer

Order execution For

Approval Final

Copies Documentation and drawings - General

1 Schedule of deviations from Technical Specification 3 sets Not

required Not

required 2 Product Technical Literature 3 sets 4 sets 4 sets

3 Technical Data sheets (Duly filled in all respect) 3 sets 4 sets 4 sets

4 General Arrangement and Foundation Plan Drawings, Weights, Dimensions

3 sets 4 sets 4 sets

5 Schematic & Wiring Diagrams (Power & control circuits)

Not required 4 sets 4 sets




6 Wiring Termination Details Not required 4 sets 4 sets

7 Technical Catalogues for all bought out components like contactors, switches, meters, relays, etc

3 sets Not required

Not required

8 Installation, Operation & Maintenance Manual (Incl. Manuals for bought out items)

Not required

Not required

4 sets

9 Type Test Certificates (For tests conducted during last 5 years) 3 sets Not

required Not

required

10 Guarantee Certificate Not required

Not required 4 sets

11 Inspection & Test Certificates Not required

Not required 4 sets

12 Test Certificates for bought out items Not required

Not required 4 sets

13 Bill of Materials Not required 4 sets 4 sets

14 Bar-chart showing manufacturing schedule 2 sets Not

required Not

required

15 Quality assurance plan Not required 4 sets Not

required

16 As-built drawings (Hard prints + Soft copy)

Not required

Not required

4 sets + 2 CD

17 Documentation and drawings – Specific equipment related requirements

17.1 HV Switchboard, LV MLTP, MCC, PCC, LDB, SLDB, PDB, APFC Panel, DG Panel, FSP, MSP etc.

Thermal & dynamic withstand capacity calculations during normal and short circuit condition for bus bar of panel

3 sets Not required

Not required

17.2 HT and LT cables

Technical data relevant to cable constants, Rating Factors, etc. 3 sets Not

required Not

required

Copy of valid IS Certification for offered cables 3 sets Not

required Not

required Drawing showing cross section showing

constructional details for each type of cable

3 sets Not required

Not required

17.3 Transformers

GA drawings for Marshalling Box, HV & LV Disconnecting Chambers, Rating Plate & Connection Diagram Plate

Not required

4 sets 4 sets

17.4 LT motors Speed torque curves, Thermal withstand

curves, Motor characteristics curves for each size of motor

3 sets Not required

Not required

Superimposed characteristics curves for the motor and driven equipment showing performance at different parameters

3 sets Not required

4 sets

Dimensional & cross sectional drawings 3 sets Not Not




for each size of motor required required 17.5 Illumination system

Drawing & Technical Literature for each type of lighting fixture 3 sets Not

required Not

required

Indoor/Outdoor area lighting design calculations/Layouts


17.6 DG Sets Technical literature for Engine, Alternator,

Genset Controller, AMF Relay, Governor, etc.

3 sets Not required

Not required

17.7 Indoor/Outdoor area cable layouts/Cable Schedule


17.8 Earthing system design calculations/Layouts


1.08 APPROVED MAKES

A List below is suggestive makes and client/consultant holds right to change the same at the time of execution without prior notice. Contractor shall take approval of consultant, client, SEB prior to order and execute the work.

Sr. No. Name of electrical component Approved vendor

1 Protective relays Siemens / Schneider (Areva) / C&S / ABB / Easun

2 LT Power and control cables Finolex / Polycab / RR Cable / Avocab / Havells

3 LV PANELS CPRI approved panel bulder for 50kA

4 Air Circuit Breaker Siemens / L&T / Schneider / Legrand / HPL / C&S

5 MCCB Siemens / L&T / Schneider / ABB / HPL / C&S

6 Motor Starter Components (Power & Aux. contactors, OL relay, Timers, etc.)

Siemens / L&T / Schneider / ABB

7 Control / Selector Switches Kaycee / Sulzer / Siemens / L&T / Areva T&D

8 Auto Synchronous Timer L & T / Siemens / BCH 9 Low tension Current Transformers Kappa / Silkaans / L&T / Siemens 10 LED type Indicating Lamps Siemens / BEE Switchgears

11 Push Buttons and Elements L&T / Siemens / Pushtron (Shrtenik & Co.) / Teknic

12 Control Transformer Indushree / INDCOIL / Siemens

13 PVC insulated Copper Wires for lighting and power circuits Finolex / KEI / Anchor / RR Kabel

14 PF correction capacitors / LV APFC Panel SHREEM / PMX / Epcos / Schneider

15 APFC relay L&T / C&S / SHREEM / PMX

16 Electronic over load Relay L & T / Siemens 17 Digital Meters Automatic Electric / Elmeasure / HPL




/ NIPPEN / L&T / Conserve

18 Pre-fabricated cable trays and fittings (Wired Mesh) OBO / Legrand

19 Terminal blocks Connectwell / Elmax / Wago 20 Local control stations (PB Stations) L&T / Pushtron 21 Cable glands Hansu / Comet / Siemens / Jainson 22 Cable lugs Dowells / Comet / Jainson

23 Lighting fixtures, lamps, accessories Philips / Wipro / LT / Crompton / Bajaj / DISSANO / UNILED

24 Lighting accessories (Switches, sockets) Anchor / Crabtree / Siemens / Philips

25 Lighting/Power Distribution Boards Legrand / L&T / HPL / Indo-Asian / C&S

26 ELMCB / MCB Siemens / Legrand / Hegar / L&T / C&S / HPL / Indo-Asian

27 Industrial 3-ph/1-ph utility outlets Legrand / Hensel / Mennekes / Fibox 28 Ceiling & Exhaust Fans CGL / Orient / Crompton / Bajaj

29 DG Set Caterpillar / Cummins / Perkins / Volvo

30 ELV Cables (Telephone / OFC / Cat-6) Polycab / Finolex / Caliplast

31 EPABX Siemense / CISCO / Matrix

32 CCTV Camera And DVR System Sony / Honeywell / Siemens / Hikvision

33 Surge Protection Device OBO / Phoenix / Schneider / Hager

1.09 ESSENTIAL CREDENTIALS AND REQUIREMENTS FOR THE BIDDER

(P.Q. CRITERIA FOR CONTRACTOR)

A The Bidder or his sub-contractor executing the work should possess Electrical Contractor’s License issued by the Government of Gujarat, which should be valid as on date. Self attested copy of the valid license should be enclosed with the bid, without which the bid shall be rejected.

B The Engineer to be deployed at site by the Bidder should possess at least degree in Electrical Engineering and Supervisor’s Permit issued by the Government of Gujarat and should have minimum 8-10 years of experience of working on such installation projects in large industrial undertakings.

C The skilled technicians deployed for executing electrical installation works such as checking, testing and commissioning of panels, motors, cable terminations, lighting, etc. should have valid Electrical Wireman’s Permit issued by the Government of Gujarat. Any technician found working on such installation without required document should be removed forthwith and the Bidder shall be penalized for the same by reporting to the statutory authority.

D All required documents in original and copies shall be produced by the Bidder prior to commencement of work at site to the satisfaction of the Purchaser.

E The Bidder shall have all necessary equipment, tools-tackles and testing instruments to undertake the complete work in the scope as specified with utmost safety. The Bidder shall bring to the site following equipment, but not limited to, well in advance as per the planning and requirement of activities.

F Erection equipment, tools-tackles: i. Lifting tackles, chain pulley blocks, crane, trailer, screw jacks, wire slings,




polyester slings, D-shackles, etc. of appropriate capacity. ii. Portable grinders, Hand drilling machines. iii. Gas cutting sets/Welding transformers/Welding generators, etc. iv. Pipe bending machine and Pipe threading tool. v. Portable drilling machine with bits of assorted types/sizes. vi. Torque wrench. vii. Conduit dye set. viii. Leveling instrument. ix. Hand operated and hydraulic cable lug crimping tools. x. Portable electric blower with air heating attachment. xi. Aluminium ladders, extendable ladders and stands, etc. xii. Safety accessories for welding, safety helmets, ear plugs, aprons, safety shoes,

hand gloves, electrical safety hand gloves, safety belts, etc. xiii. Electrical technician’s tool kit – containing insulated pliers, insulated spanners,

insulated screw drivers, cutters, hacksaw, hammer, power tester, etc. (separate for each person).

xiv. Tools for excavation, shovel, trikam, etc. and civil masonry work.

G Testing instruments at the time of testing i. 1000V and 500V hand operated megger. ii. 5000V motorized megger. iii. Phase sequence indicator. iv. Power analyzer, 3-phase showing all system parameters. v. Earth megger. vi. Single phase/Three phase variac. vii. Multi-meter. viii. Clip on meter. ix. Transformer ratio test meter. x. Low resistance measurement instrument. xi. Breaker opening/closing time testing kit, simultaneous pole operation

testing kit. xii. AC and DC portable high voltage test set, range of 75 kV or more. xiii. Continuity testers of extra low voltage, preferably 6V. xiv. Primary and secondary current injection kits. xv. Transformer oil testing kit. xvi. Relay testing kits suitable for numerical main protection relays and

tripping/auxiliary electro-mechanical relays.

H The Bidder shall have to produce necessary traceability certificates for all the instruments and kits used for testing of electrical equipments and calibration of meters, relays, etc. for calibration through the recognized calibration agency, without which the instruments shall not be permitted for performing testing.

I Non compliance to any of the requirements laid down in above Clauses shall make the bid liable for rejection without assigning any reason thereof.

K Complete details of the Contractor/Sub-contractor for Electrical works shall be provided with the Offer / Tender document in a separate sheet in the following format: Name of the firm Office Address




Telephone no Fax no Mobile no Factory / work shop Address Telephone no Fax no Type of organisation (Sole proprietorship./ Partnership /

Private Ltd./Public ltd) Name of Proprietor / Partners/ Directors (with bio data of key persons) Last Three years’ Business turn over (with break up indicating value for supply

of material).

Date of establishment Company registration no VAT - Sale tax Registration No Income Tax (PAN )no Contractor License Details No. / in Name of Supervisor Licence Details No. / in Name of EPF Registration No Name and address of the bankers Litigation History Solvency of the firm Technical capacity (Regular Staff) Nos. No. of Engineers with more than five years experience

Nos.

No. of Trained technician with more than three years of experience

1. 2. 3....

Total Strength of staff 1. 2. 3....

List of equipment, tools, tackles 1. 2. 3....

L Details of work experience: [Minimum Project Cost 0.5 Core – Single Project in one year] Project Name Value of contract Year of execution Name of the Client

List of similar type of project executed in last three Year. Value of largest project ever executed. List of Projects On hand.

1.10 METHOD OF MEASUREMENT

1.10.1 General instruction:




A Following Capital Equipments shall be measured as an individual items: Scope covers supply, installation, testing and commissioning of each equipment as per respective specifications:

1. UPS/Inverter

B Items/Systems Other than mentioned above shall be measured as below:

1.10.2 CIRCUIT CUM POINT WIRING

The rates for all point wiring items shall include supply and fixing of the following:

A Wiring for Light Points Directly Controlled from DBs: (With all accessories listed below including conduits) - Primary Point is wiring from Distribution board to first light point. - Secondary Point is wiring from first light Point to second light point.

B Wiring for Light Points Controlled from Switch Boards: (With all accessories listed below including conduits) - Primary Point is wiring from Switchboard to first light point. - Secondary Point is wiring from first light Point to second light point.

C Mains Wiring for Lighting Circuits:(With all accessories listed below without conduits)

- Wiring from LDB to first Switchboards and further loop to another switchboard as per circuit distribution. - Conduits shall be measured separately.

C Mains Wiring for Raw power points:(With all accessories listed below without conduits)

- Wiring from PDB to first socket and further loop to another socket as per circuit distribution. - Conduits shall be measured separately.

D Wiring for AC power Plug:(With all accessories listed below without conduits)

- Wiring from ACDB to AC - Conduits shall be measured separately.

E Wiring for UPS Power Plug:(With all accessories listed below without conduits)

- Wiring from DB to first socket and further loop to another socket as per circuit distribution. - Conduits shall be measured separately.

F Wiring for Lift well:(With all accessories listed below without conduits)

- Wiring from Lift DB to first socket Point and further loop to another socket points as per circuit distribution. - Cables shall be measured separately.

G Measurement shall be done as above, however, wiring shall constitute all relevant accessories which includes following which shall not be measured separately:

i. PVC conduits (FR PVC) with accessories like bends, elbows, couplers etc.

ii. Saddles and grouting the same for the exposed conduit work.

iii. Embedding conduits, point termination boxes, switch boxes, junction boxes and accessories in walls and floors etc. during construction and/or cutting chases (with chase cutting machine) on wall / floor etc.

iv. All fixing accessories such as clips, brass screws etc.

v. Outlet boxes and junction boxes and any blank opening on the boxes closed by




the brass brushes.

vi. Switch, socket outlet and necessary blank plates.

vii. PVC insulated copper stranded flexible wire for Phase + Neutral + Earth as specified in approved circuit schedule.

viii. Painting of the MS conduits, outlet boxes and junction boxes before laying the same and after installation.

ix. All shuttered type sockets with earth terminal.

x. Metal clad splash proof socket outlets.

1.10.3 WIRING FOR ELV SYSTEM

The rates for all point wiring items shall include supply and fixing of the following:

A Conduits shall be measured separately. Laying of conduits shall cover all accessories given Point Nos. G in Section No. 1.10.2 for wiring accessories

B TV/RJ45/RG11 Outlet points with accessories and wiring termination shall be measured separately.

C ELV wires shall be measured separately as per specifications

1.10.4 LV ELECTRICAL PANELS / DISTRIBUTION BOARDS

The rates shall include supply and installation of following:

A LV ELECTRICAL PANELS / DISTRIBUTION BOARDS / with switchgear, internal wiring, measuring and controlling instruments complete with intern connections and distribution busbar system shall be considered as single unit as a supply item.

B Measurement for installation of each Panel/DB/PCC/MCC as per BOQ shall cover following:

i. Supporting rigid steel framework.

ii. Proper bonding to earth.

iii. Cable clamps/supports within panel/DB in cable alley.

iv. Painting/lettering on the Breakers and distribution boards.

1.10.5 EARTHING INSTALLATIONS

A Measurement of each earthing station supply and installation shall cover following:

All fixing accessories such as brass saddles, brass screws rawl plugs, Bakelite hylam spacers etc.

i. Earthing system as per IS:3043-1987, specification and drawings

ii. Jointing by riveting and brazing after riveting in case of copper and welding/bolting in case of GI earthing.

iii. Cutting chases holes and making god the same wherever required.

iv. Effecting adequate and proper interconnections.

v. Use of copper thimbles.

B Measurement of earthing conductor (for connection of earthing system with all equipments e.g. motor, Panels, DBs, all metallic parts of electrical system with wires/strip as per BOQ) shall be measured per unit length separately.




1.10.6 LIGHTING FIXTURES AND FANS

A Measurement of each light fixture and fan shall be done on unit basis. Supply and installation shall include following:

i. Suitable length connecting 3 core flexible copper wires

ii. Internal wiring between accessories.

iii. Bonding with earth wires.

iv. Drilling holes with supports.

v. Suitable length of GI down rod duly painted, hanger, and connecting 3 core flexible copper wires where called for.

vi. Internal wiring with accessories.

vii. Wires for connecting the fixtures to the point through connector block.

viii. All metal blocks serve as base fixtures.

ix. Fixing clamps, GI bolts and nuts, brass screws, saddles, rawl bolts and other fixing accessories as required.

x. Testing of all fixtures and fans before and after installation as required.

B Fan with capacitor, regulator, earthing etc. shall be considered as one unit for

measurement and payment

1.10.7 LV Cables

A Measurement of each size of MV and LV cables shall be done on unit length basis. Payment shall be made on supply + installation rates as applicable.

B Measurement of each size of MV and LV cable end termination shall be done on unit basis. Payment shall be made on supply + installation rates as applicable.




ELECTRICAL SPECIFICATIONS INDEX:

Sr. No. SPECIFICATIONS

1 DISTRIBUTION BOARD SPECIFICATION

2 LV PANEL BOARD SPECIFICATION

3 LIGHT FIXTURE SPECIFICATION

4 LV POWER AND CONTROL CABLE SPECIFICATION

5 INTERNAL WIRING SPECIFICATION

6 EARTHING SPECIFICATION

7 ELECTRICAL ACCESSORIES SPECIFICATION

8 INSTALLATION, TESTING AND COMMISSIONING SPECIFICATION

9 CCTV SYSTEM SPECIFICATION

10 FA SYSTEM SPECIFICATION

11 ELV WIRING SPECIFICATION





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF DISTRIBUTION BOARD


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITY AND ASSURANCE 3 1.04 INSPECTION AND TESTING 3 1.05 SUBMITTALS 4 1.06 TRANSPORT, DELIVERY AND STORAGE 4

PART 2 TECHNICAL REQUIREMENTS 5 PART 3 INSTALLATION 8 PART 4 TECHNICAL DATA SHEET 10

RECORD OF REVISIONS






PART – 1 (GENERAL)

1.01 Scope of Work

A This section relates to specifications for supply of lighting/Power distribution board (LDB/PDB) using TPN/FP/DP/SP MCB, isolator & ELCB, Earthing terminal, connector strip for phase neutral and earth for each circuit with CRCA sheet steel housing.

B Irrespective of fact whether it is specifically mentioned or not, all the components shall be deemed to have been included in the specification and shall be provided by the Bidder as required for proper functioning of the offered equipment.

1.02 Codes & Standards

A The switchboard, VCB and components used in assembly shall be constructed, wired and tested in accordance with, but not limited to, this Specification and the relevant Indian/International Standards and Codes listed below.

B No. Title

IEC:61439-3 Low-voltage switchgear and control-gear assemblies

IS: 8828 Miniature circuit breakers

IS: 4237-1982 General Requirements for Switchgear and ControlGear for Voltages not exceeding 1000V

IS: 10118-1982 Code of Practice for Selection, Installation and Maintenance of Switchgear and ControlGear, Part 1 – General, Part 2 – Selection, Part 3 – Installation, Part 4 – Maintenance

IS: 13947-1993 Specification for Low Voltage Switchgear and ControlGear, Part 1 – General Rules, Part 2 – Circuit Breakers, Part 4 – Contactors and Motor Starters, Sec 1 – Electromechanical Contactors and Starters, Part 5 – Control Circuit Devices and Switching Elements, Sec 1 – Electromechanical Control Circuit Devices

IS: 5082-1998 Wrought Aluminum and Aluminum Alloy Bars, Rods, Tubes, Sections, Plates and Sheets for Electrical Applications

IS: 2147-1962 Degrees of Protection provided by Enclosures for Low Voltage Switchgear and ControlGear

IS: 12063-1987 Classification of Degrees of Protection provided by Enclosures of Electrical Equipment

C In addition to above mentioned standards, the bidder shall follow the guidelines as specified in,

2. National Electrical Code ( ISI Publication)

3. Fire Insurance Regulations

4. Tariff Advisory Committee Regulations





D It is not intent to mention all the relevant standards applicable to the proposed work and equipment. Any relevant Indian Standard, irrespective of the fact whether it is mentioned herewith or not, shall be made applicable as per requirement of the work and equipment.

E Compliance by the Bidder with the provisions of this specification shall not relieve the Bidder of the responsibility of furnishing equipment and components of proper design, electrically and mechanically suited to meet the operating requirements under the specified service conditions and be suitable for the purpose of which they are intended.

F A broad statement that “any equipment being supplied is generally in accordance with this Specification or any part of it” shall not be acceptable. Any exceptions, deviations or omissions from this Specification proposed by the Bidder shall be itemized from this quotation and subject to approval by the Consultant/Client before commencement of manufacture. In absence of specific deviation, it will be deemed to be considered as acceptance to this specification.

G The Bidder should seek clarification on any aspect of the Specification, where it is believed that obscurity or ambiguity exists in the meaning or intent stated. Where a conflict occurs between the Bidder’s manufacturing standard, this Specification and the Purchase Order/Data Sheets, the following shall apply in order of preference:

Purchase Order / Data Sheets

This Specification

National Standard/International Standard

Manufacturer’s Standard

1.03 QUALITY ASSURANCE

A The Bidder shall stand guarantee for the performance of entire equipment and components for twelve (12) months from the date of commissioning or eighteen (18) months from the date of dispatch, whichever is earlier, as agreed up on and as reproduced in the purchase order within the tolerance specified or as permitted by the relevant standards for the equipment in his scope of supply. The Client also reserves the right to use the rejected equipment or part thereof until the new equipment meeting the guaranteed performance is supplied by the Bidder.

1.04 INSPECTION AND TESTING

A All routine tests conforming to relevant Indian/International Standards shall be carried out at the manufacturer’s works at his expense on the complete unit.

B The DB’s shall be inspected and checked as per inspection manual of the DB manufacturer.

C Various electrical components and accessories of the DB’s shall be checked as per the drawing for the respective DB’s.

D The DB’s shall be checked for rigid mounting, earthing connection, proper rating & size of components, internal wiring, etc.

E All mechanical fasteners and electrical connections shall be checked and tightened before installation.




F Prior to commissioning of the DB’s following tests shall be carried out.

G Mechanical endurance test shall be carried out by closing and opening of all the MCB’s, switches etc.

H Insulation resistance test shall be carried out between phases and between phase to earth bus, keeping the isolating switch in open position. Similar test shall be carried out keeping the isolating switch in closed position.

I All the interlocks, controls and tripping mechanism of the switch gears shall be tested for their proper functioning.

1.05 SUBMITTALS

A ALONGWITH OFFER

1. The bidder shall submit completely filled data sheet as per the given format along with GA drawing indicating list of accessories.

B DURING APPROVAL

1. The bidder shall submit completely filled data sheet as per the given format

2. General arrangement

3. Test certificates

C HANDING OVER DOCUMENTS

The supplier shall submit following:

1. Test certificates from original manufacturer

1.06 TRANSPORT, DELIVERY & STORAGE

A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted price must include all the costs for necessary mode of transportation up to the site store. The DB shall be supplied with required storage arrangements suitable for placing in open storage yard. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading and unloading of equipments at site should form part of offer.




2.0 PART – 2 (TECHNICAL REQUIREMENTS)

2.01 SITE CONDITIONS

A 4. Location : Somnath Temple, Veraval

5. Site elevation : 6 Mtr above mean sea level

6. Ambient : Dry

2.02 CLIMATOLOGICAL DATA










2.03 AREA CLASSIFICATION

A 1. Non-hazardous safe as per Hazardous Area Classification IS 5572

2.04 INCOMING POWER SUPPLY AT PROJECT SITE

1 Voltage at Point of supply 11KV

2 Frequency 50 Hz




± 6 %


350 MVA





8 Control supply voltage 230 v AC

2.05 GENERAL

A The construction of DB and all the accessories shall be suitable to suit ambient climatological and installation conditions as described above.

B The lighting distribution boards shall be suitable for operation on 415/240 volt, 50 cycle per second, A.C supply system. The lighting distribution boards MCB shall be capable of withstanding short circuit current of 10 KA. The ELCB shall be 30 mA/ 100 mA as specified in data sheet.

2.06 CONSTRUCTION

A The DB’s shall be factory made and the MCB arrangement shall be as per BOQ or drawing. General arrangement lay out of the DB’s shall be approved by the consultants before starting the manufacture.

B The DB shall metal clad duly fabricated from 1.25 mm. thick high quality CRCA (Cold rolled cold annealed)sheet metal.

C The DB shall be wall mounted and dead back type with front operation.

D The DB shall totally be enclosed and made dust, vermin and weather proof such that it meets to IP54 protection classification for installation.

E A detachable cover plate of 1.4 mm thick CRCA sheet to be provided on front of the board such that all live parts of the electrical accessories mounted on the board can be accessible only on removal of the said cover plate.

1. The cover plate shall be fixed to the board with adequate size zinc passivated machine screws.

2. Above the detachable cover plate, one additional hinged door of 1.6 mm thick CRCA sheet shall be provided with a suitable locking arrangement.

The hinged door shall be provided with a suitable gasket capable of withstanding corrosive & humid atmosphere and to maintain degree of enclosure protection to IP 54 as per IS: 13947 for installation.

F The DB shall have top/Bottom entry arrangement for incoming and outgoing cables/conduits.

G All hardware to be used in manufacture of the DB shall be S.S 304 to prevent corrosion due to humid atmosphere prevailing at the project site.

H All internal electrical connections shall be carried out using 660/1100 volt grade, FRLS insulated, Copper conductor of ISI approved make, having rated current carrying capacity to carry continuous full current of respective switch Fuse rating at operating conditions prevailing at the project site.

I All non current carrying metal surface of the DB’s shall adequately be treated and painted.

J The DB’s shall be provided with electric components and accessories as per the details shown in the drawing for the respective electric distribution board. The circuit connection from all the




circuit MCB shall be brought to connector provided on top or bottom of the DB with suitable lugs. The connector shall be suitable to receive phase, neutral and earth wire/cable coming from each individual circuit. The connector’s shall have circuit identification tag.

K The DB shall be suitable for wall mounting during construction. Necessary protection cover shall be provided to protect against ingress of water, cement and dust during construction.

L The DB shall be powder coated. The colour shall be RAL-7032 unless otherwise specified.

M The neutral connector strip shall be separate for each phase providing per phase isolation (PPI type). Earthing strip shall be single and separate.

N Horizontal / vertical configuration shall be as approved by consultants/client.

O Distribution Board:

- shall be offering smoothened cornersto protect against damages like bending, peeling of paint hence preventing rusting

- shall have anti insertion mark on each sides

- shall have removable knock-outs on top, bottom & sides

- shall have plastic plugs for mounting holes to protect IP rating

- shall have plastic caps for covering unused terminals for fishbone assembly

- shall be supplied with masking sheet to prevent cement entering the box during plastering

- shall have pan plate for ease of installation

- shall have anti insertion mark for ease of mounting




PART – 3 (INSTALLATION)

3.01 SCOPE OF WORK

A This specification intended to cover assembly, installation and testing of Distribution box complete in all respect with all equipment, fittings and accessories for efficient and trouble-free operation. The material to be supplied by the Contractor and work to be carried out by the Contractor shall be in general, but not limited to, conforming to the specification laid down for each item.

3.02 MATERIALS REQUIRED

A All required hardware such as bolts, nuts, washers (round and spring type), anchor fasteners, screws, etc. of sizes and type as required shall be conforming to relevant IS. All hardware shall be hot-dip galvanized or zinc passivated/cadmium plated as per requirement of work either mechanical fabrication or electrical jointing.

B Equipment Grouting material such as cement, metal, sand, bricks, etc., if required, shall be supplied by the Contractor. The material shall be of approved make (Wherever applicable) for which the Contractor shall consult Engineer-in-charge before procuring the material.

3.03 ERECTION PROCEDURE

A Lighting Distribution Board (LDB), Sub-lighting Distribution Boards (SLDB) and Power Distribution Board (PDB) shall be installed on the wall in rooms in accordance with the layout drawings to be prepared by the Bidder based on the illumination system design.

B The wall mounted boards shall be installed maintaining the bottom of board at height not more than 1200 mm from the finished floor level.

C The space for bending of circuits of 300 mm shall be available above DB. Proper dressing of circuit and cover shall be provided.

D A steel frame shall be fabricated from size of steel member found adequate to take weight of the boards. The fabricated frame shall be grouted on the wall or welded on the steel structure as the case may be. In case, the board shall be directly fixed on wall, anchor fasteners of appropriate size shall be used. The frame shall be painted for protection against corrosion.

E The board shall be aligned and leveled using leveling instrument such as pendulum weight and spirit level when fixing on the wall or structure. It shall be ensured that while fixing, no strain is found on any part.

3.04 TESTING

A i. Mechanical close and trip operation in MCB. ii. Measurement of insulation resistance between phases and between each phase to

earth before and after HV test (MCB in closed condition). iii. Measurement of insulation resistance of various control circuits before and after

HV test. iv. DC or AC high voltage withstand test of R, Y, B phase to earth and between

phases at 75% of specified withstand voltage (MCB in closed condition). DC or AC high voltage testing of each control circuit to earth.




3.05 PRECOMMISSIONING CHECKS

Sr. Description of Check Point Type of Check 1 Proper fixing of meters, etc., tightening of hardware Visual and

mechanical tools

2 Earth continuity between non-current carrying metal parts and board earthing

Continuity tester

3 Tightness of power/control cable connections at board terminal blocks

Visual and mechanical tools

4 Bus support insulators for contamination, cracks, chips or any damage

Visual

5 Cleaning of boards Visual 6 AC control voltage supply Multi-meter 7 Sealing of unused holes for cable entry Visual 8 Dressing, terminal connections and ferruling of control

cables taken in boards l Visual

3.06 AS BUILT DOCUMENTS

A The bidder shall submit final circuit schedule in hard copy as well as soft version.

B The drawing indicating location of DB shall be submitted to the client.

C Test reports, guarantee from DB manufacturer shall be submitted.




Annexure - A

Technical Data Sheets for Distribution Board (DB)

[BIDDER TO SUBMIT SEPARATE SHEET FOR EACH DB]

Sr. No. Technical Data Specification Design Requirement

Data to be filled up /Confirmed by

Bidder 1.0 Make 2.0 Installation Indoor 3.0 Rated parameters of DB 3.1 Type Open accessible / double door type

3.2 Housing thickness

1.25 mm(minimum) CRCA sheet

3.3 Colour Powder coated, RAL-7032

3.4 Mounting Lease projection on the wall. Mounting through angle support / Partial buried in wall

3.5 Configuration PPI, Horizontal / Vertical 3.6 ELCB rating 100 mA 3.7 Spares As per BOQ

3.8 Paint External Internal

RAL-9016 Pebble White

3.9 Doors - Internal Earthed - Reversible Door - Integrated locking facility

3.10 Busbars Color Coded

3.10.1 Construction Insulated Cu Busbar One for each phase separate

3.10.2 S.C. Rating Busbar Rated S.C. Capacity : 10 kA 3.11 Neutral Links Color Coded

3.11.1 Construction Shrouded Cu Neutral Links One for each phase separate

3.11.2 S.C. Rating Rated S.C. Capacity : 10 kA 3.11.3 Mounting Adjustable

3.12 Earthing Links 3.12.1 Construction Shrouded Cu Link One for each DB 3.12.2 S.C. Rating Rated S.C. Capacity : 10 kA

3.13 Configuration PPI Type/ Non-PPI type / Phase segregation type

3.14 IK Protection IK 08 as per IEC 62262 3.15 IP Protection IP:22 / 30 / 42 / 54as per IEC 529

3.16 LED Indication lamp

BEE Switchgear – RYB Lamps with voltage indication.




Annexure -B

TYPICAL DETAILS – TPN DBWITH PPI (PER PHASE ISOLATION)

TYPICAL DETAILS – SPN DB




Annexure - C

TYPICAL DETAILS – TPN DB WITH SP OUTGOING




Annexure - D

TYPICAL DETAILS – TPN DB WITH PPI (VERTICAL ARRANGEMENT)




Annexure -E

TYPICAL DETAILS – TPN DB WITH PHASE CHANGE OVER




Annexure -F

TYPICAL DETAILS – TPN DB WITH PHASE SEGREGATION





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF LV PANEL BOARD


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITY AND ASSURANCE 3 1.04 INSPECTION AND TESTING 3 1.05 SUBMITTALS 4 1.06 TRANSPORT, DELIVERY AND STORAGE 5 1.07 SPARES 5


RECORD OF REVISIONS







1.01 Scope of Work

A This Specification describes the requirements governing engineering, design, manufacture, inspection/testing at works, packing, delivery at site, erection, testing and commissioning of LT panels along with all required components. The equipment shall be manufactured in accordance with latest Indian/International Standards applicable to such equipment and components and requirements detailed in this technical specification. The work shall be executed according to most stringent of these requirements.



A The switchgear assembly and components used in panels shall be fabricated, manufactured, wired and tested in accordance with, but not limited to, this Specification and relevant Indian/International Standards and Codes listed below.

B No. Title

IS: 8623-1993 Factory Built Assemblies of Switchgear and Control gear for Voltage up to and Including 1000 V AC and 1200 V DC. Part 1 – General Requirements

IS: 4237-1982 General Requirements for Switchgear and Controlgear for Voltages not exceeding 1000V

IS: 10118-1982 Code of Practice for Selection, Installation and Maintenance of Switchgear and Controlgear, Part 1 – General, Part 2 – Selection, Part 3 – Installation, Part 4 – Maintenance

IS: 13947-1993 Specification for Low Voltage Switchgear and Controlgear, Part 1 – General Rules, Part 2 – Circuit Breakers, Part 4 – Contactors and Motor Starters, Sec 1 – Electromechanical Contactors and Starters, Part 5 – Control Circuit Devices and Switching Elements, Sec 1 – Electromechanical Control Circuit Devices

IS: 5082-1998 Wrought Aluminum and Aluminum Alloy Bars, Rods, Tubes, Sections, Plates and Sheets for Electrical Applications

IS: 2705-1992 Current Transformers – Specification, Part 1 – General Requirements, Part 2 – Measuring Current Transformers, Part 3 – Protective Current Transformers

IS: 4201-1983 Application Guide for Current Transformers IS: 722-1996 AC Electricity Meters, Part 1 – General requirements IS: 2147-1962 Degrees of Protection provided by Enclosures for Low Voltage

Switchgear and Controlgear IS: 2959-1985 Contactors for Voltages not exceeding 1000V ac and 1200V dc IS: 12021-1987 Control Transformer for Switchgear and Controlgear for

Voltages not Exceeding 1000 V ac IS: 12063-1987 Classification of Degrees of Protection provided by Enclosures

of Electrical Equipment




IS: 5578-1985 Marking and Arrangement for Switchgear Bus Bars, Main Connection and Auxiliary Wiring

IS: 2419-1979 Dimensions for Panel Mounted Indicating and Recording Electrical Instruments

IS: 3231-1986 Specification for Electrical Relays for Power System Protection (All applicable parts)











This Specification









A All routine tests conforming to relevant Indian/International Standards shall be carried out at the manufacturer’s works at his expense on the complete unit. Shop tests shall be witnessed by the Client or by the agency authorized by the Client. Prior notice of minimum 2 weeks shall be given to the Client for witnessing the tests.

B Following tests should be performed as acceptance test at manufacturing place,

1. General visual checks for overall dimensions of panel, components, painting, MCCB/ ACB operating mechanism, accessories, wiring, connection of terminals, etc.

2. Dry HV test applying power frequency reference voltage on complete unit at test voltage specified in relevant IS.

3. HV test on control wiring in the switchgear panel at 2 kV.

4. Insulation resistance test before and after HV test for main equipment and control circuit.

5. Point-to-point control and protection circuit continuity test.

6. Mechanical and electrical operational tests, testing for interlocks.

7. Primary injection testing for indicating meters and relays.

8. Routine testing of current transformers and voltage transformers.

9. Measurement of contact resistance with ACB in closed position.

Necessary proforma for each test shall be submitted to client/Consultants prior to tests for approval.

C In case the Client shall decide to waive off the inspection, the test reports showing results of specified tests shall be submitted for review and approval prior to dispatch of materials. The materials shall be dispatched only after getting written approval from the Client/the Consultant.

1.05 SUBMITTALS

A ALONGWITH OFFER

2. The bidder shall submit completely filled data sheet as per the given format along with GA drawing indicating list of accessories.

3. Submit list of spare parts required for safe operation of equipment for Two years.

4. Make of material selected for preparation of offer.

B DURING APPROVAL


1. GA drawings with shipping sections

2. Single line diagram

3. General construction specifications




4. Foundation layout

5. Bill of Material

6. ACB/MCCB model catalogue and release details

7. Busbar sizing calculations

8. Temperature rise calculations

9. Control & protection diagrams

10. Interlocking scheme

11. Control transformer sizing calculations

12. Quality Assurance Plan



2. GA drawing

3. Single line diagram

4. Releases setting chart

5. Switchgear/metering devices operating manuals

6. Data sheet indicating results of tests

7. Test reports

8. Submission of test certificates for all the bought out components from the sub-suppliers.


A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted price must include all the costs for necessary mode of transportation up to the final location of panel or site store. The panels shall be supplied with required storage arrangements suitable for placing in open storage yard. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading and unloading of equipments at site should form part of offer.

1.07 SPARES

A The bidder shall quote for minimum spares required for two years safe operation along with the offer separately.








9. Ambient : Dry


A 1 Maximum Temperature 45 deg C












B 1 Voltage at Point of supply 11KV

2 Frequency 50 Hz




± 6 %


350 MVA






2.05 GENERAL

A The assembled equipment and all its components shall be capable of withstanding without permanent damage the thermal and dynamic stresses resulting from the specified system conditions. The equipment electrical and thermal capability shall be sufficient to permit fault current as specified to flow for 1 second without causing any permanent damage to the equipment.

B The offered equipment shall be fully type tested at the Government recognized Testing Laboratory such as CPRI, ERDA, etc. The Type Test Certificates for testing conducted during past 5 years shall be enclosed by the Bidder for the similar equipment. The particulars of the equipment test parameters and duration must be clearly stated on the certificate.

2.06 ENCLOSURE

A The panels shall be generally single front, fully compartmentalized, free-standing, flush fronted, floor mounting with separate bus bar, switchgear and cable compartments. (Minimum form 3b as per IEC)

B The enclosure shall be dust and vermin-proof with Degree of Protection IP:4X.

C The switchgear shall be provided with integral channel base frame of ISMC 75/10 SWG or ISMC 100/10 SWG depending on weight for each vertical panel, which shall be suitable for bolting/welding to the Client’s embedded base frame. The sheet steel used for entire switchgear shall be CRCA maintaining minimum thickness for various components as specified in Technical Data Sheets.

D Each vertical section shall be designed to house modular units containing the electrical equipment. Each module shall be completely enclosed on all sides, self-sufficient with operating/control device, meters, contactors, relays, door interlock mechanism, pad locking, terminal block, etc. The modules shall be designed and constructed to afford maximum protection against arcs occurring in adjacent units under fault conditions damaging other circuits on the panel. Suitable partition shall be provided between panel compartments and cable alley to prevent accidental touch of live parts in panel compartment from cable alley.

E Facility to padlock module doors when the switch in OFF position shall be provided.

F The hinged doors on incomer and each equipped module shall be mechanically interlocked so that the door cannot be opened when the module is in energized condition, nor the module can be energized when the door is open. An interlock defeat mechanism shall be provided to facilitate visual surveys on modules with structure mounted doors. With module doors open, it must not be possible to accidentally touch, to the extent feasible, any live parts; terminals of door mounted or permanently energized equipment shall be shrouded.

G Outgoing feeder panel shall have a separate vertical cable alley. Width of cable alley shall be sufficient to accommodate all cables and in no case it shall be less than 300 mm. A separate door shall be provided for cable alley.

H All auxiliary devices for control and protection such as operating handles of switches, indicating meters, relays, selector switches, push buttons etc. shall be mounted on front of the




respective module. These components shall be mounted between 300mm to 1800mm height from the bottom to facilitate the plant operator’s function.

I Spare units shall be provided, if specified, in accordance with the data given on Single Line Diagrams.

J The size of the Panels shall be designed in such a way that the internal space is sufficient for hot air movement and the electrical component does not attain temperature more than 50c.. If necessary, openings shall be provided for natural ventilation, but said openings shall be screened with fine weld mesh. All the electrical component shall be derated for 50c.

K All components in the modules shall be completely accessible for checking, testing and removal from the front and/or rear of the panel. All auxiliary equipment shall be mounted in an easily accessible position.

L It shall be possible to connect external wiring to each unit, without special safety precautions, with main bus bars live and other units in service.

M The Panel shall suitable for future extension on both ends. The bus bars shall be suitable for future extension.

2.07 BUSBARS

A Bus bars in the panel shall be high conductivity electrolytic aluminium bus bars (Grade E 91) of appropriate size for main and vertical sections to meet short-circuit requirements as specified. The Bidder shall submit the design calculations for determination of different bus bar sizes.

B All bus bars shall be insulated with colour-coded, heat-shrink sleeves of 1100 V grade with Red, Yellow and Blue colours for phase bus bar identification and black colour for neutral bus bar identification.

C Minimum clearance between live parts/phases, between live parts/neutral to earth shall be 25 mm.

D The busbars shall be supported using SMC finger type supports at regular interval not more than 600 mm.

E The earthbus shall be throughout the panel length as per the size and material specified.

F All doors and movable parts shall be earthed using flexible copper connections to the fixed frame of the panel. All non-current carrying metallic parts of the mounted equipment shall be earthed. Inter panel earth bus connections shall be properly bonded for continuity.

2.08 CONTROL SUPPLY

A 230 V, 50 Hz, 1-ph & N control supply to all the modules in panel as required, shall be provided from 1 nos.x100% of 415/230V, 1-ph, 50Hz Control Transformer. Rating of the control transformer shall be suitably decided by the Bidder. 230V, 1-ph & N control supply shall be distributed by running a separate control bus of copper throughout the panel. The control transformer shall be suitably placed with proper ventilation arrangements.

2.09 WIRING & CABLE TERMINATION




A Adequate space shall be maintained between cable terminals and bottom of incoming modules to facilitate splicing of cores to terminate multiple lengths of cables and accommodate the cables without any difficulty maintaining air passage between adjacent cables for heat dissipation. The terminations should not experience undue stress. Necessary supports shall be provided for large incomers and outgoing feeders

B Power wiring in the modules shall be of PVC insulated solid copper wires with bimetallic clamps or insulated copper strips with bimetallic washers, wherever required. Solid copper wires shall be terminated using compression lugs of suitable type and size and hardware as required. Wiring shall be identical in all modules of same rating, sized for maximum continuous current rating of contactor and MCCB for motor and power feeder modules respectively.

C Wiring inside the modules for power, control, protection and instruments etc. shall be done with use of 660/1100 V grade, PVC insulated copper conductor cables conforming to IS: 694 and IS: 8130. Power wiring inside the starter module shall be rated for full current raring of respective contactor, but not less than 4.0 sq.mm. cross-section area. For current transformer circuits, 2.5 sq.mm. copper conductor wire shall be used. Other control wiring shall be done with 1.5 sq.mm. copper conductor wires. Wires for connections to the door shall be flexible. All conductors shall be crimped with solderless sockets at the ends before connections are made to the terminals.

D Each CT secondary terminal shall be wired to the test block and then connected in accordance with wiring diagrams to the specific terminal block with disconnecting type CT shorting link so that meter or other device connected with CT can be removed without disturbing CT or power supply. Neutral point of each 3-phase set of CT shall be separately grounded through the test block.

E Particular care shall be taken to ensure that the layout of wiring is neat and orderly. Identification ferrules shall be fitted to all the wire termination for ease of identification and to facilitate checking and testing.

F The outgoing terminals and neutral link shall be brought out to a cable alley suitably located and accessible from the panel front. The current transformers for instruments metering shall be mounted on the disconnecting type terminal blocks. No direct connection of incoming or outgoing cables to internal components of the distribution board is permitted; only one conductor may be connected in one terminal.

2.10 RATING PLATE AND LABELING

A Stainless steel nameplate shall be provided with the following information :

1. Manufacturers Name, 2. Manufacturer’s type designation and Serial No. making it possible to

get all relevant information 3. Year of Manufacture 4. Rated Voltage 5. Rated current 6. Short Circuit Rating

B A vitreous enamel Danger Plate (415 volts) conforming to relevant IS to be fixed on front and back of end panels with standard danger symbol and writing for voltage level in English, Hindi and Gujarati Language.




C Engraved metal labels with white letters in black background shall be provided for all compartments. Incomers, all ACB feeders shall be provided with labels on backside of compartments also.

2.11 PAINTING

A The panel shall be applied painting after seven tank process and thorough cleaning of all metal surfaces/structures inside and outside, degreasing, pickling and phosphatizing to remove mil scale, rust, grease, dirt and then rinsing to remove any trace of acid. The under surface shall be prepared by applying two coats of red oxide primer and shall be made free from all imperfections before undertaking the finishing coat. Type of painting shall be as follows.

i. Painting for outdoor equipment Epoxy based powder coated ii. Painting for indoor equipment Epoxy based powder coated iii. Cable tray Galvanized steel iv. Structural steel Epoxy painted

B 1.1.1 After preparation of the surfaces, the panels shall be applied two coats of final paint. Colour shade of final paint shall be as mentioned hereunder unless otherwise specified.

i. External surfaces Siemens grey shade, RAL 7032 as per IS:5 ii. Internal surfaces Semi pebble white

C All hardware such as screws, bolts, nuts and washers shall be cadmium plated or zinc passivated.

2.12 ACB (AIR CIRUIT BREAKER)

A Construction:

The ACBs shall have following features:

1. Motorised with 230 V A.C. motor.

2. 230 V A.C closing and shunt trip coil

3. Draw out type with "service", "test", "isolated" and "maintenance" position.

4. Safety shutter of Fibre glass/polycarbonate sheet of 2mm thickness shall be provided

5. Mechanically trip free plus anti-pumping feature is to be provided.

6. Electrical trip free plus anti pumping shall be provided with relay ONLY and not by contactors.

7. Electrical/Mechanical operation counter shall be provided.

8. Door interlock with defeat features to be provided.

9. ACB shall be lockable in isolation position.

B Release:(refer SLD for release details)

1. Microprocessor based release shall be direct acting type, tripping ACB mechanically.

2. Short circuit, overload and earth fault protection shall be provided.

3. The release shall be self powered type




C ACB Performance:

1. ACB performance inside panels at ambient 50 Degree.

2. Ics = 100% Icu

3. Icw = Icu for 1 second.

D Metering, indication, operating switch, etc. associated with ACB shall be mounted on the same panel front, but in a different compartment.

E The following interlocks shall be provided on the circuit breaker:

1. It shall not be possible to withdraw the circuit breaker from the service position with the contacts of the breaker closed.

2. It shall not be possible to close the circuit breaker unless any one of the three positions is located, the service position, a definitely located test position, or isolated position.

3. It shall not be possible to open the compartment door when the circuit breaker is ON. 4. The circuit breaker can be padlocked in OFF position with door interlock defeat facility. 5. Castle key interlock shall be provided for normal incomers and DG incomers to prevent

parallel operation, if not specifically mentioned.

2.13 MCCB (MOULDED CASE CIRCUIT BREAKER)

A The moulded case circuit breaker (MCCB) shall be air break type and having quick make - quick break with trip free operating mechanism. Housing of the MCCB shall be of heat resistant and flame retardant insulating material. Rotary Operating handle of the MCCB shall be in front and clearly indicate ON/OFF/TRIP positions.

B The MCCB shall be provided with thermal / magnetic type bi-metal overload release and electro magnetic short circuit protection device with adjustable time delay. All the releases shall operate on common trip busbar so that in case of operation of any one of the releases in any of the three phases, it will cut off all the three phases and thereby single phasing of the system is avoided. It shall be ensured through the trip-free mechanism that the main contacts cannot be held against a persistent fault.

C The MCCB wherever called for in the appended drawings shall provide an earth fault relay.

D Draw out type MCCB shall be provided for the feeder indicated in the single line diagram. The MCCB shall be provided with 230 V A.C motor for closing and tripping / switching off for the feeders indicated in single line diagram.

E The MCCB shall be ambient temperature compensated, which shall allow the breaker to carry rated current between 25 deg C to 50 deg C with tripping characteristics that are approximately the same throughout this temperature range.

F All MCCB rating > 250 A shall have micro processor based release and MCCB rating <= 250 A shall have thermal magnetic based release.

2.14 MCB (MINIATURE CIRCUIT BREAKER)

A MCB shall provide utmost safety, reliability, flexibility of operation, highly reliable and suitable protection to the power and lighting circuits

B MCB shall be tropicalised to withstand extreme electrical, mechanical, climatic and




environmental conditions. Due consideration shall be given to the brand using maximum recyclable components in the product. Housing shall be made of heat resistant insulating material to provide long life.

C The circuit breaker dollies shall be of the trip free pattern to prevent closing the breaker on a faulty circuit.

D The fault current of MCBs shall be less than or equal to 10 kA at 240 V and of tripping characteristics B, C or D class as specified.

2.15 ELCB / EL+MCB / RCCB / RCBO

A The fault current breaker shall be less than or equal to 10 kA at 240 V.

B The circuit breaker dollies shall be of the trip free pattern to prevent closing the breaker on a faulty circuit.

C ELCB/RCCB shall have earth leakage protection based on CBCT principle. EL+MCB/RCBO shall have over current, over load and earth leakage protection based on CBCT principle.

D Device shall be with IP 20 protection with reset and test button and with din-rail mounting arrangement.

E The breaker shall be of 2 Pole Configuration in 1-phase circuits and of 4 Pole configurations in 3-Phase circuits. General specifications shall be as under:

ITEM SPECIFICATIONS Number of Poles 1P+N/3P+N Rated voltage 240/415V Rated current 6A/10A/16A/20A/25A/32A/40A/50A/63A Rated Operating Current(mA) 30mA/100mA/300mA Operating Time < 0.1 Sec Tripping Curve C/D

- Device shall be Electronic type

- With midline cut-off functions

- With double functional connection terminals

- With contact state indicator

- Different handle colors to indicate different rated current.

- Rating shall be at site condition.

F Guideline to use ELCB sensitivity range is as follows:

AREA RATING RESIDENTIAL 30 mA

OFFICE / COMMERCIAL 100 mA INDUSTRIAL SHED 300 mA

2.16 CONTACTOR

A The contactors shall meet with the requirements of IS: 13947.




B The contactors shall be double break non-gravity type, equipped with three main contacts and minimum 2 NO + 2 NO auxiliary contacts, suitable for tropical conditions, providing reliable performance in high ambient temperature and humidity conditions.

C The rating selection for motor feeders shall perform Type-2 co-ordination as per IS:13947 for selected make.

D The power contactors shall be rated for AC-3 Class Utilisation Category to comply with the latest edition of the ratings and requirements specified by applicable Indian/International Standards and shall have inherent under-voltage characteristic. They shall be anti-shock type, designed for heavy duty, rated for at least 125% of the full load motor current, capable of making and breaking full voltage starting current of squirrel cage motors.

E The operating coil of the contactor shall be suitable for 110 V, 1-Ph & N AC supply and shall work satisfactorily between 65% to 110% of the rated value and shall be provided with insulation of minimum Class B or better.

F The contactor shall have alpha-numeric terminal marking to eliminate wiring door.

G Up to 32 Amp, the contactor shall be suitable for snap-fit, mounting on 35 mm DIN rail.

H Visible mechanical indication for contactor ON and OFF position shall be provided so as to enable inspection of its state.

I Main contacts shall be of silver plated copper.

J The contactor shall be provided with in-built protection to coil against over-voltage and under-voltage conditions.

2.17 BIMETALLIC RELAY

A Bimetal relays, provided for protection of motors against overload, shall be positive acting, ambient temperature compensated type with adjustable setting range.

B Bimetal relays shall be provided with built-n-single phasing prevention feature, which shall operate even with 50% rated current at the time of single phasing.

C Bimetal relays shall be manually reset type with the reset push button brought out on the front of the panel. The reset push button shall be capable of being operated without opening the compartment door.

D Heavy-duty starters and for blower/fan drives shall be provided with saturable type current transformer operated over load relays, which shall be suitable for motor starting time varying form 15 seconds to 60 seconds.

2.18 AUXILIARY CONTACTOR

A The contactor shall be air break type, equipped with minimum 4 NO + 4 NO auxiliary contacts, unless specified.

B The coil of the contactor shall be suitable for 110 V, 1-Ph & N AC supply and shall work satisfactorily between 65% to 110% of the rated value.

C The contactors shall be suitable for snap-fit, mounting on 35 mm DIN rail.




D Generally, the aux. contactor shall be used for interlocking and multiplying contacts. Auxiliary contacts shall be capable of carrying the maximum anticipated current. All contacts shall be wired up to the terminal block.

E Visible mechanical indication for contactor ON and OFF position shall be provided so as to enable inspection of its state.

2.19 SOFT STARTER

A Soft Starter shall be accommodated in the starter module with necessary electrical interlock for automatic change over with by-pass contactor (inbuilt/external) at attainment of normal speed by the motor. Barrier shall be provided between soft starter and assembly of other normal module components.

B Soft starter shall provide at least following modes of operations and controls within a single controller.

- Current limit start - Full voltage start

- Full voltage start - Soft stop

C It shall be feasible to program the current limit for 50% to 600% of full load current in the starter.

D The soft starter shall have following minimum in-built motor protection features.

i. Electronic motor overload protection - with I2T algorithm, suitable for Class 10, incl. thermal memory, program of trip current feasible by entering motor full load current.

ii. Stall protection - with time delay from 0 to 10 sec., protection to operate only after timing out of motor start time entered into starter.

iii. Under-voltage protection - with adjustable trip level as % of line voltage from 0 to 99% and programmable time delay to avoid nuisance trips.

iv. Voltage unbalance protection - with unbalance trip programmable from 0 to 25% of line voltage.

E LCD display shall show 3-ph current, 3-ph voltage, power in kW, power factor, motor thermal capacity usage, etc.

F Dedicated ventilation scheme shall be provided for soft starter compartment with recommended side clearances.

2.20 FUSE SWITCH UNIT

A Incomer/outgoing feeder SDF shall be 3-pole, with neutral link, (suitable for 3-ph & N system), load break, heavy duty type. SDF for motor feeder shall be 3-pole, load break, motor duty, air break type. SDF shall be provided with quick-make, quick-break manual operating mechanism. The operating handle shall be mounted in the front of door of the compartment having the switch.

B Utilization category of switches for distribution feeder and motor starter application shall be AC-22 and AC-23 respectively.

C Neutral shall be generally isolable type, unless specifically mentioned.

D There shall be positive isolation of fuses on opening of switch.

E SDF shall have separate arcing and current carrying zones with phase barriers provided




between adjacent phases.

F Provision shall be there for add-on contacts, if required at future date.

G Visible indication shall be provided for SDF ON and OFF position.

2.21 FUSE

A All power and control fuses shall be non-deteriorating HRC cartridge link type only. Power fuses shall be pressure fitted (knife edge)/bolted type and shall preferably have ribs on the contact blades to ensure good line contact. For motor feeders, HRC fuses for motor duty (AC-3) shall only be used.

B It shall be possible to handle fuses during off load conditions with full voltage available on the terminals. Wherever required, fuse pullers shall be provided. The fuse bases shall be so located in the modules to permit use of fuse puller with ease to insert/ remove of fuse links as and when required.

2.22 SURGE PROTECTION DEVICE

Surge Protection Device (TVSS) connected to the mains power supply should be able to withstand 100 KA (10/350sec) as per IEC 62305-1.

Protection at the main incomer of the power supply system has to be connected at the Main Distribution Board after the incoming breaker.

SPD should be connected between Phase and Neutral and between Neutral and Earth with the following ratings.

For 3 phase system, 3 Nos. of Line to Neutral SPD & 1 No. of Neutral to Earth SPD are to be provided. For 1 phase system, 1 No. of Line to Neutral SPD & 1 No. of Neutral to Earth SPD is provided.

22.1.1 Class B/Class I (IEC 61643)

Parameters Specifications Line to Neutral Neutral to Earth

Type Encapsulated/Non-exhausting Spark Gap Nominal Voltage, Un 230V, 50/60 Hz Over Voltage withstanding capacity

400V

Lightning Impulse Current 40KA(10/350sec) 125 KA(10/350 sec) Voltage Protection Level, Up < 2.5 KV Response Time < 100 nano seconds Operating temperature range -40C to +85C Mounting on Din Rail Degree of Protection IP20 Back-up Fuse / MPCB Up to 500 amps max. Depending up on panel design &

breaking capacity.

Class B+C/Class I+II (IEC 61643)

Parameters Specifications




Line to Neutral Neutral to Earth

Type MOV with built in thermal fuse

Spark Gap Encapsulated / Non-exhausting

Nominal Voltage, Un 230V, 50/60 Hz

Maximum Continuous Operating Voltage, Uc

> 320 Volt 255 Volt

Nominal Discharge Current In 30 KA(8/20 sec) 50 KA(8/20 sec)

Maximum Discharge Current Imax 50 KA (8/20 sec)

Lightning Impulse Current 7 KA(10/350 sec)

25 KA(10/350 sec)

Voltage Protection Level at 1 KA < 750 volts <1200 Volt

Response Time < 25 nano seconds

< 100 nano seconds

Operating temperature range -40C to +80C

Mounting on Din Rail

Degree of Protection IP20

Max. Back-up fuse / MPCB Up to 160 amps max. Depending up on panel design & breaking capacity.

Surge Protection Device for single phase power supply (L-N) (N-E) at branch Panel

Parameter Specification

L - N N - PE

Maximum Continuous Operating Voltage 385 V 255 V

Requirement class to EN 61643-11 Type 2 Type 1 + 2

Requirement class to IEC 61643 - 1 Class 1 Class 1 + 2

Lightning Protection Zone (LPZ) 1 - 2 0 - 2

Nominal Discharge surge current (8/20 µS) 20 kA NA

Maximum Discharge Surge Current In 40 kA 50 Ka

Voltage Protection Level < 1.7 kV < 1.2 kV

Response time < 25 ns < 25 ns




Temperature range -40 to +80 ̊C -40 to +80 ̊C

Protection rating IP20 IP20

Division Unit ( 17.5mm) 1 1

Connection cross section (Cable size) 2.5 – 25 mm² 2.5 – 25 mm²

Class C/Class II (according to IEC 61643)

Parameters Specifications

Line to Neutral Neutral to Earth

Type MOV with built in

thermal fuse

Spark Gap Encapsulated / Non-exhausting

Nominal Voltage, Un 230V, 50/60 Hz

Maximum Continuous Operating Voltage, Uc > 320 Volt 255 Volt

Nominal Discharge Current In 20 KA(8/20 sec) 50 KA(8/20 sec)

Maximum Discharge Current I max 40 KA 50 KA (8/20 sec)

Voltage Protection Level at 1 KA < 1000 Volts <1200 Volts

Response Time < 25 nano seconds < 100 nano seconds

Operating temperature range -40C to +80C

Mounting on Din Rail

Degree of Protection IP20

Back-up fuse / MPCB / MCB Up to 125 amps max. Depending up on panel design & breaking capacity.




F1, F2, F3 - : Incoming ACB/MCCB/SFU

F4, F5, F6 -: Back up fuse / MPCB / MCB for Surge Arrester

R, Y, B and N -: RYB and N Bus bar or looping after the incomer

PE - : Earth Bus bar in the panel

SPD1, 2, 3 - : Surge Arrester to connect between Line and Neutral

SPD 4 - : SPD to connect between Neutral and Earth.

2.22 CURRENT TRANSFORMER

A Each phase shall be provided with separate current transformer of accuracy Class I (metering), Class 5P10 (protection) and suitable VA burden for operation of associated metering and controls. Current transformer shall be in accordance with IS: 2705 - 1964 as amended upto date.

2.23 INDICATING AND RECORDING INSTRUMENTS/METERS

A All indicating instruments and meters shall be capable of carrying continuously their full load currents and full voltage across their pressure coils. They shall not be damaged by the passage of fault currents or the existence of over pressure on the primary side of their instrument transformers for the maximum permitted duration of fault conditions which may occur during normal operation. All instruments and meters shall be back connected.

B The AC ammeters, voltmeters, PF meter, frequency meter, etc. shall be digital and flush mounted type. Ammeters and voltmeters shall preferably be with in-built selector switch to observe 3-phase currents and voltages. The quantity of indicating meters shall be as provided

Connection diagram for SPD for 3 phase 4 wire

PE

R

Y

B

N

SPD

1

SPD

4

F4 F5 F6

F1

F2

F3

SPD

2

SPD

3




in the specification for respective equipment/Bill of materials.

C Wherever specified, a multi-function meter (MFM) shall be provided. MFM shall be digital suitable to measure various parameters of the system with unbalance load working at 415V, TPN, 50 Hz supply. The MFM shall have RS-485/RS-232 serial ports and open Protocol and suitable for 230V AC, 50 Hz auxiliary power supply and 5/1A CT secondary.

2.24 INDICATING LAMPS

A Indicating lamps assembly shall be screw type with built in resistor having non fading color lens. LED type lamps are required.

2.25 PUSH BUTTONS

A The push button unit shall comprise of the contact element, a fixing holder, and a push button actuator. The push button shall be momentary contact type. The contacts shall be of silver alloy and rated at 10 Amps. continuous current rating. The actuator shall of standard type and colour as per its usage for ON, OFF and TRIP.

2.26 SHOP DRAWINGS

A The Bidder shall develop his own General Arrangement (GA), Schematic Control Wiring, Aux. Wiring Drawings, etc. adding necessary auxiliary devices, accessories, component particulars of the supplied equipment, bill of materials, etc., which are required for a safe, convenient, efficient and proper operation of the equipment as per technical specification and shall submit all the drawings for the Client’s approval.

B The Client’s concurrence of the said drawings is an essential requirement before proceeding with the any manufacturing activity. The Client’s review of the Bidder’s drawings shall not relieve him from the responsibility for supplying equipment conforming with the relevant specifications and standards or for any mistakes, errors or omissions in the Bidder’s/Manufacturer’s drawings.

2.27 SPECIFIC REQUIREMENT

A The Bidder shall fill-up Technical Particulars and Other Technical Data without fail. In other technical particulars, calculated technical data may be provided.

B In case the Bidder shall fail to furnish the data sheets and guaranteed technical particulars and other technical data, the bid is liable for rejection without assigning any reason thereof.

2.28 ATTACHMENTS

A Data sheet

Feeder / release details


3.01 SCOPE OF WORK

A These specifications intended to cover assembly, installation and testing and commissioning of LT panel complete in all respect with all equipment, fittings and accessories for efficient




and trouble-free operation. The material to be supplied by the Contractor and work to be carried out by the Contractor shall be in general, but not limited to, conforming to the specification laid down for each item.


A All required hardware such as bolts, nuts, washers (round and spring type), anchor fasteners, screws, etc. of sizes and type as required shall be conforming to relevant IS. All hardware shall be hot-dip galvanized or zinc passivated/cadmium plated as per requirement of work either mechanical fabrication or electrical jointing.

B Equipment Grouting material such as cement, metal, sand, bricks, etc., if required, shall be supplied by the Contractor. The material shall be of approved make (Wherever applicable) for which the Contractor shall consult Engineer-in-charge before procuring the material.


A The Manufacturer of panel shall depute qualified and experienced engineer (herein after called “Engineer”) to work in tandem with the erection contractor and Engineer-in-charge of the Client. He shall remain present at site throughout till satisfactory completion of total work.

B The contractor shall thoroughly inspect and check during the unpacking to ensure inclusion of all items as per packing list. Any transport damage to parts, if observed, and short supplied items shall be reported immediately to the Engineer-in-charge.

C Before installation, the contractor shall ensure thorough cleaning of panels by blowing dry air and manually using clean smooth cotton cloth. Use of any chemical affecting properties of electrical insulation used shall be totally avoided.

D The panels installed on finished surfaces of steel base frame to be kept ready duly grouted by the Client. The panels shall be placed on base frame and aligned properly. Then the panels shall be fixed either using tack welding or bolting with anchor bolts.

E The contractor shall direct proper installation of loose supplied items like meters, relays, etc. and their wiring on respective panels as per drawings. Smooth handling of delicate items like instruments, relays, etc. shall be ensured. Removal of the blocking materials/mechanisms inserted for safe transport of such components shall be only after ensuring that the panels have been completely installed and no further movement would be required.

F It shall be ensured that the Air circuit breaker, operating mechanism and spring are in de-energized/discharged condition. Movement of ACB trolley in panel shall be smooth without any undue stops. Closing of module doors without any distortion shall be checked and ensured after installation and alignment of panels.

G Range of overload relays / timers etc. shall be checked with requirement of motor actually to be connected at site and if the same is undersized / oversized, it shall be brought to the notice of the client / consultant, who shall arrange procurement of corrected components. However, the contractor shall not charge anything extra for labour for such replacements.

3.04 TERMINATION OF LT CABLE (as defined in scope of work)

A The Contractor shall ensure that LT cables are terminated using weatherproof type of nickel-cadmium plated, single/double compression cable glands and tinned copper/copper lugs of




appropriate size of approved make.

3.05 TESTING

A Before electrical panel is energised, the insulation resistance of each bus shall be measured from phase to ground. Measurement shall be repeated with circuit breakers in operating positions and contacts open.

B Before switchgear is energised, the insulation resistance of all control circuits shall be measured from line to ground.

C The following tests shall be performed on all circuit breakers during erection.

Contact alignment and wipe shall be checked and adjustment where necessary in accordance with the breaker manufacturer’s instructions.

Each circuit breaker shall be drawn out of its cubicles, closed manually and its insulation resistance measured from phase to phase and phase to ground.

All adjustable direct acting trip devices shall be set using values given by the consultant/ manufacturer.

The dielectric strength of insulating oil wherever applicable, shall be checked.

Before switchgear is energised, the following tests shall be performed one each circuit breaker in its test position.

Close and trip the circuit breaker from its local control switch push button or operating handle. Switchgear control bus may be energised to permit test operation of circuit breaker with A.C. closing with prior permission of the client / consultant.

Test tripping of the electrically operated circuit breaker by operating mechanical trip device.

Test proper operation of circuit breakers latch, check carriage limit switch if provided. Test proper operation of lockout device in the closing circuit. Wherever provided by simulating conditions which would cause a lockout to occur.

Trip breaker either manually or by applying current or voltage to each of its associated protective release.

Before switchgear is energised, the tests covered above shall be repeated with each breaker in its normal operating position.

Capacitor banks shall be tested as per manufacturer’s instructions. In addition, test for output and/or capacitance, insulation resistance test and test for efficiency of discharge device shall be carried out.

All electrical equipment alarms shall be tested for proper operation by causing alarms to sound under simulated abnormal conditions.

D Performa For PCC, MCC, DB, Control Panel Test

Name of PCC/MCC/DB/Panel Manufacturer’s details Tested By Witnessed By Main Busbar Details:

1. Configuration:




2. Busbar material & size: 3. Rated voltage: 4. Control voltage: 5. Rated current: 6. Dist. Between supports: 7. Rated frequency: 8. Dist. Between busbar: 9. Ventilation

For major sub-busbars, fill-in above information separately. Physical Examination:

1. Dimension 2. Weight 3. No. of sections with sizes 4. Base Channel 5. Protection class 6. Lifting hook 7. Feeder notations on front and rear doors 8. Cable Entry (Top/Bottom)

HV Test: 1. Test Voltage: 2. Applied Across: 3. Time:

Insulation resistance test (contacts open, breaker racked in position):

1. between each phase of bus 2. between each phase and earth 3. DC and AC control and auxiliary circuits 4. between each phase of CT / PT and between CT & PT

circuit if any

(Mega ohm)

Circuit breaker or contactor module designation: 1. Check for contact alignment and wipe 2. Check / test all releases / relays 3. Check mechanical interlocks 4. Check electrical interlocks 5. Closing - local & remote (wherever applicable) 6. Tripping - local & remote (wherever applicable) 7. Opening time of breaker / contactor 8. Closing time of breaker / contactor

CT/PT checks 1. CT/PT ratio 2. CT secondary resistance 3. CT polarity check

Fabrications: 1. Material 2. Main Frame Thickness / Guage 3. Door Thickness / Guage 4. Gland plate 5. Painting Internal 6. Painting External 7. Door (Hinged/Screw type)

Earthing Busbar:




1. Size 2. Location

Control and Measurement: 1. Meters (Analog/digital) 2. Accuracy Class 3. Control Wiring Fuses 4. Control Transformer

Accessories and Spares: 5. Door opening keys 6. Operating handles of breaker 7. Drawing pocket with drawing 8. Tail/Dropper sizes 9. Connector Sizes 10. Test certificates of all bought out items




Annexure - A

Technical Data Sheets for Low voltage Panel

[BIDDER TO SUBMIT SEPARATE DATASHEET FOR EACH LV PANEL]

Sr. No. Technical Data Specification Design

Requirement

Data to be filled up /Confirmed by Bidder

1.0 Site Condition 1.1 1.2 1.3

Type Mounting Ambient Temperature

Indoor Floor, Indoor 50° C.

2.0 OPERATIVE CONDITION 2.1 2.2 2.3 2.4

Voltage System Frequency Fault Current

415 V ± 10 %, 3 phase 3 Ø , 4 WIRE 50 HZ, + 3 % / - 6 %. 35 kA for 1 sec

3.0 ENCLOSURE 3.1 top cover, bottom sheet,

component mounting plates, side covers

2 mm

3.2 Front doors, rear doors, cable alley doors , Cubicle partition covers

1.6 mm

3.3 Gland plate 3 mm 3.4 Base frame ISMC 75 / 100

4.0 CONTROL SYSTEM 4.1

4.2

4.3

Voltage For Indication For Metering For Protection Control Supply Through Control Transformer Control Wiring

230 V A.C. 230 V A.C. 230 V A.C. 230 V A.C. only 2.5 MM² FRLS Cu. Wire 2.5 MM² FRLS cu. Wire for CT ckt.

5.0 BUSBAR 5.1 A. B. C. D.

E.

F.

Phase Bus bar Material Support Insulation Insulating Barriers Max. Current Density Permissible Permissible temp. rise over ambient

Aluminium SMC/DMC Epoxy Moulded ( Resin ) Fibre Glass / Poly Carbonate Of Minimum 1.5 Mm Thick 0.9 Amp. / mm² 40 deg. Cen

Vendor to produce detail busbar sizing calculation for each busbar.

5.2

5.3

Neutral Bus bar Material Earth Bus bar Material

50% of phase bus Aluminium Size as per SLD GI





Requirement

Data to be filled up /Confirmed by Bidder

6.0 PAINTING 6.1

6.2 6.3 6.4 6.5

Type Of Paint Shade Exterior Interior Degree Of Protection Max. Temperature Rise Inside The Panel (°C.)

Powder coated RAL-7032 Semi pebble white IP 4x 35 ° C. above ambient

7.0 CABLE ENTRY Bottom 8.0 CONTROL TRANSFORMER Required 9.0 HARDWARE ( ZINC PLATED ) YES 10.0 SPACE HEATER 230 V A.C. With thermostat

control

11.0 POCKET FOR DRAWINGS AT DOOR

Required

12.0 Illumination and switched power plug

Required





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF LIGHT FIXTURES AND FANS


CONTENTS

SR.NO. DESCRIPTION PAGE NO

PART 1 GENERAL 2

1.01 SCOPE OF WORK 2

1.02 CODES AND STANDARDS 2

1.03 QUALITY ASSURANCE 3

1.04 INSPECTION AND TESTING 3

1.05 SUBMITTALS 3

1.06 TRANSPORT, DELIVERY AND STORAGE 4

PART 2 TECHNICAL REQUIREMENTS 5

PART 3 TECHNICAL DATA SHEET 8

RECORD OF REVISIONS







1.01 Scope of Work

A The scope of work shall cover the supply, assembling and testing of various types of light fixtures as per specification and latest standards.



A The components used in assembly shall be constructed, wired and tested in accordance with, but not limited to, this Specification and the relevant Indian/International Standards and Codes listed below.

B Sr. No. Title

IS: 3646 Code of practice for interior illumination

IS: 1913 General and Safety requirements for Electric lighting fittings

IS: 374 (2002-03) Specification for electric ceiling type fans and regulators

IS 374 : 1979 Specification for Ceiling Type fans andregulators

IS 1534 (Part 1) Ballasts for tubular fluorescent lamps – performance requirements– Part 1 For switch start circuits

IEC 61347-2-8/IS15885(part2/Section 8)

Lamp control gear Part 2-8 Particular requirements for ballasts for fluorescent lamps

IEC 62031 / IEC 62384 LED modules for general lighting - Safety specifications

DC or AC supplied electronic control gear for LED modules - Performance requirements

IEC 60929 / IS13021 (Part1 and Part 2)

AC supplied electronic ballast for tubular fluorescent lamps – performance requirement

IS 14700 (Part 3/Sec

2)/IEC 61000-3-2

Electromagnetic compatibility Part 3 Limits for harmonic current emissions (equipment input current ≤ 16 A per phase

IS6873(Part5) /CISPR 15

Limits and methods of measurement of radio disturbance characteristics Part 5 Electrical lighting and similar equipment




LM 79 LED laminar photometry

LM 80 LEDlaminar Maintenance


10. National Electrical Code (ISI Publication)









This Specification









A The bidder shall submit photometry of the fixture supplied.

B The wattage consumption for each fixture shall be tested and confirmed against requirements as agreed. Ballast losses shall be separated.

C Each fixture shall be tested at 1500volts r.m.s. 50Hz for one minute and no flashover of breakdown shall occur between current carrying parts and ground.

D Insulation resistance of each fixture shall be tested at 500 V.D.C. and the insulation resistances so measured shall not be less than 2 mega ohms between all current carrying parts and ground.

E Each fixture shall be examined visually to ensure that it is complete in all respects and satisfactorily finished.

F Type and routine test certificates shall be submitted for tests conducted as per relevant IS/BS for the fixture and accessories.

G Establishing service value by necessary tests

1.05 SUBMITTALS

A DURING APPROVAL

4. The bidder shall submit IES files of selected fixtures

5. Details of Material of construction

6. Ballast losses




10. Guarantee certificates


A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted price must include all the costs for necessary mode of transportation up to the site store. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading of equipment’s at site should form part of offer.








12. Ambient : Dry


1 Maximum Temperature 45deg C

2 Design Max. Ambient Temperature (Dry Bulb)

50deg C

3 Minimum Temperature (Winter Dry Bulb) 08deg C


5 Maximum Relative Humidity at 30.5°C 95% (Design basis)








1 Voltage at Point of supply 11kV

2 Frequency 50Hz

3 Permissible voltage variation ± 10%

4 Permissible frequency variation ± 3%

5 Permissible combined voltage & frequency variation ± 6%

6 Symmetrical Fault Level at Point of supply (Design) 350MVA


8 Control supply voltage 230V AC




2.05 GENERAL

A All fixtures shall be complete with ballast igniter, starter, capacitor, lamp accessories and fixings necessary for installation whether so detailed under fixture description or not.

B Fixture housing, frame or canopy shall provide a suitable cover for the fixture outlet box or fixture opening.

C Fixture shall be completely wired with FRLS wires and constructed to comply with the regulations and standards for Electric Lighting Fixtures, unless otherwise specified. Fixtures shall bear manufacturer’s name and the factory inspection label unless otherwise approved.

D Wiring within the fixture and for connection to the branch circuit wiring and shall not be not less than 1.5 sq. mm. copper for 250 Volt application. Wire insulation shall suit the temperature conditions inside the fixture and wires bypassing the choke shall be heat protected with a heat resistant sleeve.

E Metal used in lighting fixtures shall be not less than 22 SWG or heavier if so required to comply with specifications or standards. Sheet steel reflectors shall have a thickness of not less than 20 SWG. The metal parts of the fixtures shall be completely free from burrs and tool marks. Solder shall not be used as mechanical fastening device on any parts of the fixture.

F All Outdoor Light Fixture shall have Protection Class as specified in BOQ.

G Non-reflecting surfaces such as fixture frames and trim shall be Aluminium die cast.

H Lighting fixtures shall be designed for minimum glare and for continuous operation under specified atmospheric condition.

I All fixtures shall be complete with accessories like power factor improvement capacitors, low loss ballast, long range igniter maximum distance between igniter and fixture shall be 30 mtr. etc.

J Fluorescent fixture shall be of sheet steel casing with corrosion resistance finish. It shall be provided with separate wiring channel with cover plate and an earth terminal. All screw shall be chromium plated only. Lamp and starter holders shall be of tough moulded plastic with spring loaded rotor type connector. Capacitors shall be low loss paper impregnated hermetically sealed. Internal wiring shall be neatly clipped and where by passing the ballast, a suitable heat resistance barrier or sleeve shall be provided.

K Industrial low bay / medium bay / high bay fitting shall be of die cast Aluminium housing, high purity Al. Reflector, acrylic cover and wire guard.

2.06 REFLECTOR

A Light reflecting surface shall be mirror finished having the reflection factor of not less than 90%. All parts of reflector shall be completely covered by finish and free from irregularities. It shall be capable of withstanding a 6 mm. radius bend without showing sign of cracking, peeling or loosening from the base metal. Finish shall be capable of withstanding 72hours’ exposure to ultra violet sun lamp placed 10 cm. from the surface




without discoloration, hardening or warping and retain the same reflection factor after exposure. Test report shall be furnished for each lot of fixtures.

B Lighting fixture reflectors shall generally be manufactured from aluminium sheet of not less than 20 SWG. They shall be readily removable from the housing for cleaning and maintenance without disturbing the lamps and without the use of tools. They shall be security mounted to the housing by means of positive fastening devices of a captive type.

C Polystyrene egg-box type louvers shall be provided whenever specified. Appropriate captive type fixing devices shall be incorporated for securing these.

2.07 BALLAST

A Lighting fixtures ballasts shall be designed manufactured and supplied in accordance with the relevant standard IS 1534 (Part-1) and shall function satisfactorily under site conditions. The ballasts shall have a long service life and low power loss as specified in BOQ.

B Ballasts shall be mounted using self-sticking, anti-vibration fixings and shall be easy to remove without removing the fittings.

C Ballast shall contain a thermosetting type compound not subject to softening or liquefying under any operating conditions or upon ballast failure. The ballasts shall be of the inductive and heavy duty type Filled with polyester or equivalent. They shall be free from hum and protected from the atmospheres. Ballasts which produce a humming sound shall be replaced free of cost by the supplier. MH / HPSV ballasts shall be provided with suitable tappings.

D Ballast to all types of fixtures shall have compliances (“Star Rated”) as per BEE (Bureau of Energy Efficiency – BEE)

2.08 CAPACITOR

A Lighting fixture capacitors shall have a constant value of capacitors and shall be connected across the supply of individual lamp circuits.

B Each capacitor shall be suitable for operation at 240 volts ± 5% single phase 50 Hz with a suitable value of capacitance so as to correct the power factor of lists corresponding lamp circuit to the extent of 0.98 lag.

C The capacitors shall be hermetically sealed preferably in metal container to prevent seepage of impregnating material and ingress of moisture.

2.09 LAMPS

A Lamps shall be supplied and installed in all lighting fixtures furnished under this contract.

B The lamps shall be of required star rating as per BEE S & L requirements, as specified.

C Lamps shall be of wattage and type as given in the drawings and schedules. Where not given, the details shall be ascertained from the client before procurement.

2.10 CEILING FAN




A The performance requirements shall be in accordance with clause 8 of prevalent IS 374:1979.

B All ceiling fans shall comply with minimum Air Delivery of 210 cu m/min.

C Capacitor type Regulator shall have minimum 3 steps apart from off position and maximum position.

D Electric Ceiling fan capacitor type with double ball bearing complete with capacitor,300 mm down rod, canopies shackles, three number blades made up of alluminium alloy, suitable for single phase ,AC 210 V,50 Hz supply and conforming to class 1 of IS:374/1979 with latest amendments

E The down rod shall be capable to withstand a tensile load of 1000 kg without breakdown and a torsion load of 500 kg.cm without breakage as per clause 10.14.1 of IS:374/1979 with amdt.1 to 6.




Annexure - A Technical Data Sheets for Light Fixture

[BIDDER TO SUBMIT SEPARATE SHEET FOR EACH FIXTURE]


Requirement


Bidder

1.0 Make

2.0 Cat. No.

3.0 Light fixture

3.1 Type of Lamp

Watt/no.

No. of Lamp/fixture

Lumens/Watts >= 110 lumens / watt

Lumens/no.

3.2 Ballast / Control Gear / Driver

Losses/no.

THD ≤8 %

Input Voltage Range 180Vrms to 270Vrms

Operating Voltage 240Vrms

Output Voltage

Output Voltage Ripple < 3%

Output Voltage Protection (SPD) Required

Current Waveform EN 61000-3-2

Withstand Voltage 440V for 2 hours

Temperature Rise @ 45ºC Tamb <= 30ºC

Hot Swapping Required

3.3 Overall consumption at 230 V, AC Watts including control gear/Driver

3.4 Overall dimension

3.5 Reflector material (As applicable)




3.6 Louvre type & material (As applicable)

3.7 Operating PF (Overall) >= 0.95

3.8 Housing material

Thickness

Painting

IP 54 (Indoor)

65 (Outdoor)

3.9 .ies file Required

3.10 Actual image file Required

3.11 Efficiency of the LED lamps at 85 Deg C junction temperatures > 85%

3.12 Life at junction temperature of 85 Deg C at rated current for 24 hour continuous operation

> 50000 hours

3.13 Details of Heat Sink

Material

Surface Area

3.14 Color temperature (nominal CCT)

5700k

Color Variation should be 5665 +/-365K (ANSI binning)

3.15 View Angle > 120

3.16 Luminary maintenance LM 80

3.17 Color Rendering Index CRI >= 75

3.18 Fixture Efficiency ≥ 90%

3.19 EMC Compliance Required




Annexure - B

Technical Data Sheets for Ceiling Fan

[BIDDER TO SUBMIT SEPARATE SHEET FOR EACH FAN]


Requirement


Bidder 1.0 Make & Model 2.0 Fan size 1200 mm 3.0 No. of blades 3 4.0 Operating Voltage 230 V, 50 Hz 5.0 Power Consumption @230V

(Indicate IS tolerance, if any) To be specified

6.0 Ampere To be specified 7.0 Capacitor value To be specified 8.0 Fan Speed :

Minimum Maximum

To be specified

9.0 Compatability with electronic regulator Required

10.0 Air Delivery as per IS 374 To be specified 11.0 BEE star rating 5 star 12.0 Service Value (air delivery/Watt) To be specified 13.0 Blade Material & thickness 1.1 mm 14.0 Blade Angle 8-9 degree 15.0 Colour White 16.0 Type of paint Epoxy Powder coated 17.0 Ball bearing Double 18.0 Fan Balancing Required 19.0 Resistance type fan regulator Not required 20.0 Standard Fan rod length Required





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF LT POWER AND CONTROL CABLE


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITYASSURANCE 3 1.04 INSPECTION AND TESTING 3 1.05 SUBMITTALS 3 1.06 TRANSPORT, DELIVERY AND STORAGE 4


RECORD OF REVISIONS






PART – 1 (GENERAL) 1.01 Scope of Work

A This Specification describes the requirements governing engineering, design,

manufacture, inspection/ testing at works, packing, delivery at site, erection, testing and commissioning of Low Tension Cables (LT cables). The item shall be manufactured in accordance with latest Indian/IEC Standards applicable to such equipment and components and requirements detailed in this technical specification. The work shall be executed according to most stringent of these requirements.



A The entire work under the scope relevant to the cable shall be executed conforming to the latest revision of Indian Standards mentioned hereunder, or conforming to equivalent IEC or other International Standards applicable to such equipment and components and requirements detailed in this technical specification.

B No. Title IS:7098-1988 (Part-1) Specification for Cross-linked Polyethylene Insulated PVC

Sheathed Cables - For Working Voltages up to and including 1100 Volts

IS:3975-1998 Specification for Mild Steel Wires, Strips and Tapes for Armouring of Cables

IS:5831-1984 Specification for PVC Insulation and Sheath of Electric Cables

IS:10810 Methods of Test for Cables – Acceptance and Routine Tests (All applicable parts)

IS:8130-1984 Specification for Conductors for Insulated Electric Cables and Flexible Cords

IS:10418-1972 Wooden Drums for Cables IS: 3961 Recommended current ratings for cables IEC Publication 287 Electric Cables calculation of current rating

C In addition to above mentioned standards, the bidder shall follow the guidelines as specified in, 14. National Electrical Code ( ISI Publication) 15. Fire Insurance Regulations 16. Tariff Advisory Committee Regulations 17. State Government Regulations



F A broad statement that “any equipment being supplied is generally in accordance with this Specification or any part of it” shall not be acceptable. Any exceptions, deviations or omissions from this Specification proposed by the Bidder shall be itemized from this




quotation and subject to approval by the Consultant/Purchaser before commencement of manufacture. In absence of specific deviation, it will be deemed to be considered as acceptance to this specification.

G The Bidder should seek clarification on any aspect of the Specification, where it is believed that obscurity or ambiguity exists in the meaning or intent stated. Where a conflict occurs between the Bidder’s manufacturing standard, this Specification and the Purchase Order/Data Sheets, the following shall apply in order of preference: Purchase Order / Data Sheets This Specification National Standard/International Standard Manufacturer’s Standard


A The Bidder shall stand guarantee for the performance of entire equipment and components for twelve (12) months from the date of commissioning or eighteen (18) months from the date of dispatch, whichever is earlier, as agreed up on and as reproduced in the purchase order within the tolerance specified or as permitted by the relevant standards for the equipment in his scope of supply. The Purchaser also reserves the right to use the rejected equipment or part thereof until the new equipment meeting the guaranteed performance is supplied by the Bidder.


A All routine tests conforming to relevant Indian/International Standards shall be carried out at the manufacturer’s works at his expense on the complete unit. Shop tests shall be witnessed by the Client or by the agency authorized by the Client. Prior notice of minimum 2 weeks shall be given to the Client for witnessing the tests. The Test Certificate, showing results of the tests specified below, shall be carried out on the drum length, from which the cut length is offered, shall be submitted prior to dispatch of material. Unless the Purchaser’s express written approval is received, the cut length shall not be dispatched.

All routine tests conforming to relevant Indian/International Standards shall be carried out at the manufacturer’s works at his expense on the cables with lengths of 500 mtr and above.

In case of cable with less than 500 mtr lengths, all routine tests conforming to relevant Indian/International Standard must have been carried out on the offered LT cable at the manufacturer’s works. The Test Certificate, showing results of the tests specified carried out on the drum length, from which the cut length is offered, shall be submitted prior to dispatch of material. Unless the Purchaser’s express written approval is received, the cut length shall not be dispatched.

B Following tests should be performed as acceptance test at manufacturing place, 10. General visual checks for overall dimensions of cables, workmanship satisfaction,

overall sheath finish, etc. 11. Dry HV test for 05 min. applying power frequency reference voltage on complete

length at the test voltage specified in Clause 19.7.2 of IS: 7098 (Part-II)-1985, between each phase to earth and between phases.

12. Insulation resistance test before and after HV test for main equipment and control circuit.

13. Conductor DC resistance test. 14. Partial discharge test.




1.05 SUBMITTALS

A ALONGWITH OFFER 5. The bidder shall submit completely filled data sheet as per the given format. B DURING APPROVAL The supplier shall submit following:

13. Technical datasheet 14. Type test certificates for given cable 15. Quality Assurance Plan


A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted

price must include all the costs for necessary mode of transportation up to site store. The item shall be supplied with required storage arrangements suitable for open storage yard. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading and unloading of equipments at site should form part of offer.








15. Ambient : Dry











2.03

AREA CLASSIFICATION



B 1 Voltage at Point of supply 11KV

2 Frequency 50 Hz




± 6 %


350 MVA






2.05 GENERAL

A The construction of cable and all the parts shall be suitable to suit ambient climatological and installation conditions as described above.

B All materials used in the manufacturing of cable shall be new, unused and of finest quality. All materials shall comply with the applicable provision of test of specifications under relevant Indian standards, IEC standards, Indian Electricity Rules and any other statutory provision rules and regulations.

C The PVC material used in the manufacture of cable shall be of reputed manufacturer. No recycling of PVC is permissible. The Client reserves the right to ask for documentary proof of the purchasing of various raw materials to be used for the manufacturing of the cable and to check that the Manufacturer is complying with required quality standards.

The LT power cables and all its components shall be capable of withstanding without permanent damage the thermal and dynamic stresses resulting from the specified system conditions. Thermal capability shall be sufficient to allow fault current to flow for 3 second without causing any damage to the equipment.

The LT power cables shall be fully type tested at the Government recognised Testing Laboratory such as CPRI, ERDA, etc. in accordance with the relevant standards. The Type Test Certificates for testing conducted for the similar equipment during past 5 years shall be submitted by the Bidder. The particulars of the equipment test parameters and duration must be clearly stated on the certificate or attachments.

The LT power cables and control cables shall be 1100 V Grade of high conductivity, 90 deg C rating, heavy duty, stranded, compacted, high ductility, aluminium/copper circular shaped conductor with XLPE (cross-linked polyethylene) insulation provided over conductor and XLPE insulation.

Type of conductor according to sizes of cables shall be as follows. i. LT power cables 2 core / 3 core / 4 core up to 6 mm2 size stranded copper conductor 3 core / 3.5 core / 4 core of 10 mm2 and above size

stranded aluminiumconductor

ii. Control cables

All multi-core of 1.5 mm2 size Solid copper conductor All multi-core of 2.5/4.0 mm2 size Stranded copper conductor

D General Guideline for selection of cable:

Cross Section Area Type of Conductor

< 10 sq mm Cu Conductor

>= 10 sq mm Al Conductor

General Guideline for selection of cable core for three phase cables for non-motorized duty:




Cross Section Area Core of cable

<= 16 sq mm 4C

>=25 sq mm 3.5 C

2.06 Material of Construction

A Conductor : The cable conductor shall be stranded and compacted made of high conductivity, high density Aluminium of grade H2 and class 2 for all sizes OR high conductivity, high density, electrolytic grade, class 2, stranded Copper conductor as specified to form compact circular shaped conductor having resistance within limits specified in IS:8130-1984 along with latest amendment thereof.

C Insulation : XLPE insulation shall be suitable for specified highest system voltage. The manufacturing process shall ensure that the insulation shall be free of voids. The insulation shall withstand mechanical and thermal stress under steady state and transient operating conditions. The insulation of the cable shall be conforming to IS:7098 (Part-I).

E Fillers and Inner sheath : The inner sheath shall be suitable to withstand the site conditions and specified temperature. It shall be of adequate thickness, consistent quality and free from all defects. The PVC sheath shall be extruded. The Cable shall have suitable PVC filler laid up with insulation cores to provide subsequently circular cross section before the inner sheath is applied. The filler shall be suitable for operating temperature of the cable. The fillers and inner sheath shall be chosen to be compatible with the temperature ratings of the cable and shall have no deleterious effect on any other component of the cable.

F Armour : A galvanized steel round wire or strip armouring shall be provided. The dimensions of steel strips armouring shall be conforming to IS: 3975-1998 read along with latest amendment thereof.

G Outer sheath : Outer sheath of extruded PVC type ST.2 conforming to IS: 5831-1984 shall be provided over armouring with suitable additives to prevent attack by rodents and termites. The outer sheath shall have flame retardant low smoke (FRLS) characteristics, which shall meet the requirements of additional tests specified for that purpose in the relevant Indian Standards.

H Core identification : The cores shall be identified by either coloured strips applied on the cores (Red, Blue, Yellow for phase and Black for neutral) or by numbers.

2.07 Other Requirements

A Length Tolerance : The size of cable, for which the ordered length shall be 500 mtr and above, the allowable tolerance on individual drum length shall be ± 3%. And allowable tolerance on overall length shall be ± 2%. These requirements shall not be applicable to the cables of lengths less than a drum length.

B Identification mark : Following details shall be embossed only on the outer sheath at suitable interval on entire length of cables.




(a) Name of manufacturer (b) Voltage grade (c) Year of manufacture For identification of cores, coloured strip of red, yellow and blue colours shall be used to identify phase conductors.

2.07 Packing and Forwarding

A The cable shall be wound in wooden drum as per and packed in drums suitable for vertical transport. The drum shall be suitable to withstand rough handling during transport and outdoor storage and loading/unloading. The outer surface of the drum shall be painted with white aluminium paint. Similarly, the inside surface of the drum shall have the protective layer of varnish/paint to protect it from white ants.

B The wooden drum shall be provided with steel bends and strips for better protection. C The ends of cable shall be sealed by means of non-hygroscopic sealing material to

prevent moisture ingress. D The Tenderer shall be responsible for any damage to the cable or drum during transit due

to improper and inadequate packing. Wherever necessary, proper arrangement for lifting, such as lifting hooks, shall be provided.

E Each drum shall bear on the outside flange, legibly and indelibly in the English language, a distinguishing number, the manufacturer's name and particulars of the cable, i.e. Voltage, length, conductor size, cable type, insulation type and gross weight shall also be clearly visible. The direction for rolling shall be indicated by an arrow.

2.20 REJECTION OF CABLE

A The client may reject any cable if during tests or service any of the following conditions arise:

1. The actual resistance of cable is +1% of approved value. 2. Length supplied is more than allowed tolerance of 3%. 3. Physical damage to outer sheath. 4. Actual diameter of cable more than approved tolerance.

2.21 SPECIFIC REQUIREMENT

A The Tenderer shall fill-up Technical Particulars and Other Technical Data without fail. In other technical particulars, calculated technical data may be provided.

B In case the Tenderer shall fail to furnish the data sheets and guaranteed technical particulars and other technical data, the bid is liable for rejection without assigning any reason thereof.





3.01 SCOPE OF WORK

A These specifications intended to cover installation and testing of HT/LT cable complete in all respect with all equipment, fittings and accessories for trouble-free operation. The material to be supplied by the Bidder and work to be carried out by the Bidder shall be in general, but not limited to, conforming to the specification laid down for each item.


A Following Indian Standards and Code of Practice shall be applicable.

i. IS-10810- Methods of test for cables

3.04 GENERAL REQUIREMENTS

A Cables unloaded directly at working site shall be tested for insulation resistance between R, Y, B to earth and between phases and also for conductor continuity prior to start any activity.

B Cable routes shall be designed by the Bidder. The cable layout drawings for outdoor area and indoor areas and cable schedule shall be prepared and got approved. The route shall be so that interference with existing structures, buildings, pipelines, etc. is avoided. All routes shall be carefully decided so as to lay the most economical lengths of cables.

C All cables routes shall be carefully measured and cables shall be cut to the required lengths, leaving sufficient lengths on both ends for the final connection of the cable to the terminals. The cable lengths cut from the cable drums shall be carefully selected to prevent undue wastage of cables. Extra loop lengths shall be provided for cables, wherever required/specified, in consultation with the Client.

D Cables shall be installed maintaining minimum cable bending radii as follows.

xv. Cables of 1.1 kV grade 15 D for all power and control cables xvi. Cables of 3.3 kV to 33 kV grade 15 D for single core cables

(D, overall diameter of cable) 20 D for multi-core cables

E Extreme care shall be exercised while laying cables to avoid formation of twist, sharp bend, etc. in order to avoid mechanical damage to cables. Wooden rollers or steel rollers with rubber on rolling surface shall be used for pulling of large lengths of cables. No dragging of cables on ground shall be permitted.

F The cables, when taken out from the ground or trench for termination in respective equipment, shall be taken through GI conduits of appropriate size, bending properly as required, and terminated. The exposed conduit end shall be properly plugged using round wooden pieces and sealing compound.

G Where cables shall pass through walls, the Bidder shall be required to make opening in the wall or ceiling at no extra cost. Location shall be determined by the Bidder and approval from the Client shall be obtained prior to making hole.

H All cables shall be identified close to their both termination points by aluminium cable tags by cable identification number as per cable schedule. In case the route length is more




than 10 mtr, such marker shall be provided along entire length at 20 mtr interval. The marker shall be securely fastened to cable using 16 SWG GI wire. The tag shall indicate cable tag no. and equipment tag no. as per the schedule.

I Cable tags shall be provided on all cables at each end (just before entering the equipment enclosure), on both sides of a wall or floor crossing, on each duct/conduit entry and at each end & turning point in cable tray/trench runs. Cable tags shall be provided inside the switchgear, motor control centers, control and relay panels etc., wherever required for cable identification, where a number of cables enter together through a gland plate.

J General spacing requirement between different types of cables shall be as follows.

i. Spacing between HT and LT cables shall be at least 300mm horizontal or vertical. ii. Spacing between instrument/Extra low voltage cables and LT power cables shall

be at least 300mm horizontal or vertical.

K In case the outer sheath of a cable is damaged during handling/installation, the Bidder shall repair it at his own cost to the satisfaction of the Employer. In case any other part of a cable is damaged, the same shall be replaced by a healthy cable at no extra cost to the Client, i.e. the Bidder shall not be paid for installation and removal of the damaged cable.

3.05 LAYING OF CABELS ON TRAYS

A The power, control and instrument service cables shall be laid on the GI pre-fabricated ladder type cable trays installed in horizontal or vertical formation as required.

B Long lengths of cable to be laid on horizontal trays shall be pulled using wooden rollers or steel rollers with rubber on rolling surface. No dragging of cables on the trays shall be permitted to avoid damage. The cables shall be neatly laid on the trays without bends and kinks.

C The cables laid on the trays shall be clamped at every 600mm intervals in vertical runs and 1000mm interval in horizontal runs. Clamps shall be fixed on both the sides of bends. Clamps fabricated from 25x3mm GI flats shall be arranged by the Bidder as per the size and number of cables to be clamped with the trays.

D Cables for motors and other electrical equipments shall be dropped through GI tray of suitable width depending upon number and size of power and control cables to be routed. One end of GI tray shall be supported from the main tray and second end from local support derived from the equipment/floor.

3.06 LAYING OF POWER, CONTROL, EARTHING CABLES IN GROUND

A For laying cables underground, the excavation and back-filling of the trench, generally in soft soil, shall be in the scope of the Bidder. The trench shall be excavated using manual and mechanical methods as per field conditions.

B Minimum depth of trench shall be around 1000 mm and width shall be 500-600 mm depending on number of cable to be laid in parallel.

C Cables shall be so laid in trench that this will not interfere with other underground structure. All water pipes, sewage lines or other structures which become exposed by excavation shall be properly supported and protected from injury until the filling has been rammed solidly in places under and around them. Any telephone or other cables coming in the way are to be properly shielded / diverted as directed by the Employer / consultant.




D Where paved footpaths are encountered, the pavement slabs shall be properly stored and reinstated. Identification markers of other services shall be properly stored and restored.

E The bottom of the excavated trench should be leveled flat and free from any object, which would damage the cables. Any gradient encountered shall be gradual.

F Following procedure shall be followed for laying of cables directly buried in ground.

a. Sand bedding of 100 mm shall be provided at bottom of trench. b. Cable shall be laid on the sand bed. In case of multiple cables, the spacing between

adjacent cables shall be maintained as mentioned earlier. c. Red bricks shall be installed on two sides of laid cables or in between adjacent cables

as required. d. The testing of cables shall be carried out after this activity. e. Once cable passes the testing, the sand shall be spread up to level of brick top, and

then horizontal brick shall be placed across two bricks already installed. f. Final sand bedding of 100 mm shall be provided on the top brick. g. Thereafter, the trench shall be filled and compacted with excavated soil up to the

finished ground level.

G Cables shall be pulled into the excavated trench using rollers or wooden trough to reduce friction. A series of rollers shall be used to guide the cables along the trench and around the trench corners to avoid damage to top sheath. All care shall be taken to avoid contact of cable with sharp object.

H For cables directly buried in ground, the Bidder shall install round shaped galvanized cast iron cable markers with appropriate marking over ground at all bends, loops, road crossing points (if any) and at every 15 mtr interval on straight runs. Cable markers shall be properly grouted. The cable markers for HT and LT cables shall be separate and installed accordingly. Location of underground cable joints shall be indicated with cable marker with an additional inscription “Cable joints”.

I Loops of about 5 mtr shall be provided in between the route at the point shown by the Client during the course of work.

J Dry and clean riverbed sand, free of stones, sharp objects, waste, etc. shall be supplied in required quantity by the Bidder. All left out sand shall be removed from site by the Bidder.

K Bricks of good quality and strength shall be supplied by the Bidder in required quantity. No pieces of brick shall be used for laying. All such wastage shall have to be considered by the Bidder in the price and shall be removed from site by the Bidder on completion of work.

L For all underground cables, route markers should be used :

a) Separate route markers should be used for LT, HT and telephone cables.

b) Route markers should be grounded in ground with 1:2:4 cement concrete pedestal size 230 x 230 x 300 mm..

c) Cable markers should be installed at an interval not exceeding 20 mtr. along the straight routes of cables at a distance of 0.5 mtr. away from centre of cable with the arrow marked on the cable markers plate indicating the location of cable. Cable markers should also be used to identify change in direction of cable route and for




location of every joint in underground cable.

M In case the cables shall be required to cross a road, drain, waste water channel or storm water drain, they shall be routed through RCC hume pipes/GI pipes of 100/150 mm diameter. After passing of cable, the pipes shall be closed at both ends by sealing compound. At the point of entrance to pipeline, adequate bed of sand shall be given so that the cables do not slack and get damaged by pipe ends.

3.07 LAYING OF POWER AND CONTROL CABLES IN BUILT-UP TRENCHES

A The cables shall be laid on the GI pre-fabricated trays to be installed in the built-up trenches. The supports shall be fabricated from standard structural steel members.

B Insert plates will be provided at an interval of 750 mm wherever cables are to be supported without the use of cable trays, such as in trenches, while at all other places these will be at an interval of 2000 mm.

C In case of requirement of laying power, control and instrument cable the in same trench, distance at least 300mm shall be vertically between two tiers to avoid electromagnetic interference to instrument cables.

D Such built-up trenches shall be covered by 6mm thick chequered plates, to be supplied and fabricated by the Bidder.

E Cable racks and supports shall be painted after installation with two coats of metal primer (comprising of red oxide and zinc chromate in a synthetic medium) followed by two finishing coats of aluminium paint. The red oxide and zinc chromate shall conform to IS: 2074.

F Power and control cables in the cable trench shall be laid in separate tiers. The order of laying of various cables shall be as follows, for cables other than directly buried.

a) Power cables on bottom tiers.

b) Control instrumentation and other service cables in top tiers.

G Cables for the motors and other electrical equipments shall be taken from trenches for termination using GI pipe up to height as per terminal box position. GI pipes shall be fixed on the trench wall and shall be sealed at both ends.

H Power and control cables shall be securely fixed to the trays/supports with self locking type nylon ties with de-interlocking facility at every 5 meter interval for horizontal run. Vertical and inclined cable runs shall be secured with 25 mm wide and 2 mm thick aluminium strip clamps at every 2m.

3.08 LAYING OF CABLES ON WALLS AND STRUCTURES

A Generally, PVC, copper cables (YWY type) used for the lighting circuits shall be laid on the walls, ceilings and/or steel structures.

B Cables, to be routed on walls and steel structures, shall be cleated with GI spacers and GI saddles at every 300 mm interval. Size of saddles shall match overall diameter of cables.

C Route shall be marked using suitable colour on walls or structures prior to fixing of




spacers so that cables run maintaining straight horizontal alignment all along the route.

D The spacer shall be tightly fixed on the walls using PVC wall plugs and GI hardware.

3.9 TERMINATION OF LT POWER AND CONTROL CABLES

A All XLPE aluminium/copper, armoured power ands control cables shall be terminated at respective equipment by means of double compression type cable glands of proper size conforming to specification provided elsewhere in this document.

B All the cores of control cables shall be identified at both ends by their terminal numbers by means of PVC ferrules suitable for the size of cable core. Wire numbers shall be as per cable schedule. Spare cores shall be neatly bunched and provided with ferrules at both ends for future use.

C After taking cables inside the panels or equipment through glands, the individual core shall be properly dressed and taken along cable ways (in panel/board) and shall be fixed at correct place with self-locking type polythene straps. Nylon cords shall not be permitted. Cable armour shall not be exposed after termination is complete. Control cable cores shall also be neatly bunched in panel and fixed using self locking polythene straps.

D Drilling of holes in gland plates using appropriate hole making tool shall be the Bidder’s responsibility. All unused cable entries on panels and equipment shall be plugged/sealed.

E Cable lugs shall be either aluminium, tinned-copper or copper, hole or pin type, suitable for crimping on cable cores. Crimping of lugs shall be carried out by hand crimping or hydraulically operated crimping tool as per cable size.

F Before crimping, insulation provided on cable cores shall be removed and conductor surface shall be cleaned. Suitable conducting jelly shall be applied on conductor lead and lug shall be inserted such that all strands of core shall be enclosed by lug. Not a single strand shall be cut. Final crimping shall be carried out thereafter.

G The cable glands shall conform to IS: 6121. They shall comprise of heavy duty brass casting, machine finished and nickel plated, to avoid corrosion and oxidation. Rubber components used in cable glands shall be neoprene and of tested quality. Cable glands shall be of approved make.

H On completion of termination work at particular area, equipment, part of panel, etc., all bolts, nuts, hardware of terminal box shall be properly provided in its position and tightened.

3.10 PVC FERRULES, CABLE IDENTIFICATION TAGS, CLAMPS, TIES

A PVC ferrules to be provided on individual core and cables at the termination for core identification shall be of best quality self-locking type of size in accordance with the size of core. The ferrules shall be supplied in alphabets and numerical types.

B The Cable shall be identified by providing identification tags made of non-corrosive material with writing in indelible ink or made of aluminium plate with punched marking. The tags shall be provided at both ends of cables and at every 25 mtr length along route.




C The cables laid on tray shall be clamped as follows. Nylon cords shall not be allowed.

i. In case of large nos. of cable laid on trays – GI clamps of suitable size. ii. Cables laid on walls, structures – GI saddles and cleats of suitable size. iii. Cables taken in switchgear panels – Self locking PVC cable ties.

3.11 TESTING

A Before energising, the insulation resistance of every circuit shall be measured from phase to ground.

B Where splices or terminations are required in circuits rated above 650 volts, measure insulation resistance of each length of cable before splicing and/or terminating. Repeat measurements after splices and/or terminations are complete.

C DC high voltage test shall be made after installation of all cables of 1100V grade.

D For record purpose test data shall include the measured values of leakage current versus time.

E The test voltage and duration for HT cables shall be as per relevant Codes and Standards of Bureau of Indian Standards. Application of stresses due to imposition of high voltage uncalled for shall be avoided as far as possible.

3.13 PRECOMMISSIONING CHECKS

A Check whether cable is laid and dressed properly, proper identification tag is provided, and proper glanding and termination work is done. Check cables laid underground for proper sand bedding, brick cover, etc.

B Check the insulation resistance between phases and phase to earth using 1000V hand operated megger keeping cable disconnected at both ends. Measure insulation resistance of directly buried cables twice, i.e. before cable trenches are backfilled as well as after trenches are backfilled.

C Record voltage and current in the commissioning report for record when the cable is energised along with respective equipment.

D Discharge the cables properly using appropriate earthing rod immediately after HV and insulation resistance testing to avoid static electricity shock (This is must for HT cables).

E Sr. Description of Check Point Type of Check 1 Provision of cable identification tags at both ends and

in-between as specified Visual

2 Earthing of cable screen and armouring using copper braid from termination

Visual and megger

3 Workmanship of end terminations 4 Laying without undue bends, kinks, bending radius Visual and

measurement 5 For cables laid on trays/built-up trenches ,

Clamping on trays Fixing of trays in alignment

Visual

6 Proper bending radius maintained Visual




7 Proper provision of cable gland Visual 8 Clearance between trays for HT & LT cables, trays for

electrical & inst. Cables Visual and measurement

9 Tightening of cable terminations on both sides Visual 10 Ferruling at both ends for control & instrument cables Visual 11 Measurement of IR values at various stages

After laying underground or on tray Before termination at both ends

Megger




Annexure - A

Technical Data Sheets for LT Cable

[BIDDER TO SUBMIT SEPARATE SHEET FOR EACH CABLE]

Sr. No. Particulars Description Data/Confirmation by Bidder

1.0 ENVIRONMENT DETAILS 1.1 Ambient Temp In Degree Celsius 50 Degree Celsius 1.2 Ground Temp In Degree Celsius 35 Degree Celsius 1.3 Relative Humidity 90 % At 35 Degree

Celsius

1.4 Altitude < 1000 Meter Above MSL 1.5 Atmosphere Non Corrosive, Humid

and Dusty

2.0 SYSTEM DETAILS 2.1 System Voltage 1.1KV + / - 10% 2.2 System Frequency 50 Hz., +3% / -6% 2.3 Grounding Solidly Earthed 2.4 Fault Level As per SLD/Cable

Schedule

3.0 CABLE 3.1 No. of Cores 3/3.5/4 (Three) 3.2 CABLE CONDUCTOR

3.1.1 Size Of Conductor As per BOM 3.1.2 Material High Purity Aluminium 3.1.3 Construction Stranded 3.1.4 Shape Compacted Circular

3.3 CONDUCTOR INSULATION 3.3.1 Material High Purity Void And

Moisture Free Cross Linked Polyethylene (XLPE)

3.3.2 Thickness > = 5.5mm 3.5 CORE IDENTIFICATION TAPE Yes Required 3.6 CORE LAYING Right Hand Direction 3.7 INNER SHEATH / COVER PVC type ST-2, Extruded 3.8 ARMOURING

3.8.1 Material Flat Steel GI Strip 3.8.2 No Of Strip 4 3.8.3 Size Of Strip 0.8 mm

3.9 OUTER SHEATH 3.9.1 Material PVC type ST-2 3.9.3 Thickness > = 1.4 Mm 3.9.4 Colour Black 3.10 MARKING ON OUTER SHEATH YES




Sr. No. Particulars Description Data/Confirmation by Bidder

3.10.1 Voltage Grade Yes 3.10.2 No. of Cores/Size of Conductor /

Material of Conductor Yes

3.10.3 Type Of Insulation Yes 3.10.4 Details About Armour Yes 3.10.5 Details Of Standards Yes 3.10.6 Year Of Manufacturer Yes 3.10.7 Any Other Details Yes

4.0 TESTING 4.1 Type Test As Per IS Certificate To Be Provided

for each drum

4.2 Routine Test As Per IS Yes To Be Witnessed By Client

4.3 Acceptance Test Yes To Be Witnessed By Client

5.0 CABLE DRUM Non Returnable 5.1 Material Wooden / Steel 5.2 Marking On Cable Drum As Per Specification

6.0 CABLE PARAMETERS Cable Constants

6.1 AC resistance per core at operating temperature and 50 Hz frequency (Ohm/kM)

6.2 Reactance per core at 50 Hz frequency (Ohm/kM)

6.3 Capacitance per core(Microfarad/kM)

6.4 DC resistance per core at 200C (Ohm/kM)

6.5 Armour resistance (Ohm/kM) 6.6 Overall Diameter (mm) 6.7 Weight of Cable (KG/Mtr.)

Current Carrying Capacity 6.7 In Ground 6.8 In Air





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF INTERNAL WIRING SYSTEM


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 INSPECTION AND TESTING 3

PART 2 TECHNICAL REQUIREMENTS 5 PART 3 INSTALLATION 10 PART 4 DATASHEET FOR CONDUIT AND WIRE 12

RECORD OF REVISIONS







1.01 Scope of Work

A This specification covers definition of point wiring, system of wiring, supply, installation, connection, testing and commissioning of point wiring for light points, ceiling fan points, exhaust fan points, convenience socket points, power socket outlet points, bell outlet points, etc. including fixing of light fixtures, ceiling fan, exhaust fan, wall fan, bell etc.



A The entire work under the scope relevant to the transformers shall be executed conforming to the latest revision of Indian Standards mentioned hereunder, or conforming to equivalent IEC or other International Standards applicable to such equipment and components and requirements detailed in this technical specification.

B No. Title

IS: 732 Code of practice for electrical wiring installation (System voltage not exceeding 650 V)

IS: 1646 Code of practice for fire safety of buildings (General) Electrical installation.

IS: 9537 (Part - 2) Rigid steel conduits for electrical wiring. IS: 2667 Fittings for rigid steel conduits for electrical wiring. IS: 3480 Flexible steel conduits for Electrical wiring. IS: 3837 Accessories for rigid steel conduit for electrical wiring. IS: 694 PVC insulated cables. IS: 9537 (Part - 3) Rigid non-metallic conduits for electrical wiring. IS: 6946 Flexible (Pliable) non-metallic conduits for electrical

installation. IS: 1293 3 pin plugs and sockets. IS: 8130 Specifications of conduits for electrical installation. IS: 3854 Switches for domestic purpose. IS: 3419 Fittings for rigid non-metallic conduits. IS: 4648 Guide for electrical layout in residential buildings Indian

electricity act and rules.









22. Indian electricity Act, 2003





Purchase Order

This Specification

Drawings

Bill of quantity




INSULATION RESISTANCE TEST

A The insulation resistance shall be measured by applying 500 volt megger with all fuses in places, circuit breaker and all switches closed

B The insulation resistance in megohms of an installation, measured shall not be less than 50 megohms divided by the number of points on the circuit

C The insulation resistance shall be measured between

1. EARTH TO PHASE

2. EARTH TO NEUTRAL

3. PHASE TO NEURAL

4. PHASE TO PHASE

EARTH CONTINUITY PATH




D The earth continuity conductors shall be tested for electrical continuity and the electrical resistance of the same along with the earthing lead but excluding any added resistance or earth leakage circuit-breaker, measured from the connection, with the earth electrode to any point in the earth continuity conductor in the completed installation and shall not exceed one ohm

E All the above tests shall be carried out in presence of client and the results shall be recorded in prescribed forms. Any default during the testing shall be immediately rectified and that section of the installation shall be re tested. The completed test result form shall be submitted to the client for approval

















2.03 GENERAL

A Prior to laying of conduits, the contractor shall submit for approval, the shop drawing for conduit layout indicating the route of the conduits, number and size of the conduits, location of junction/inspection/pull/outlet boxes, size and location of switch boxes, number and size of wires pulled through each conduit and all other necessary relevant details. Only after the drawings are approved, the contractor shall proceed with the work of laying of conduits.

2.04 POINT WIRING

A A point shall consist of the branch wiring from the distribution board together with a switch as required, including the ceiling rose or pendant holder or swan holder, or ceiling fan box or socket or suitable termination. A point shall include, in addition, the earth continuity conductor/wire from the distribution board to the earth pin/stud of the outlet/switch box and to the outlet points

B Supply, installation, fixing of conduits with necessary accessories, junction/pull/inspection/switch boxes and outlet boxes

C Supplying and drawing of wires of required size including earth continuity wire

D Supply, installation and connection of flush type switches, sockets, cover plates, switch plates, and fixing fan regulator etc




E The point shall be complete with the branch wiring from the distribution board to the outlet point, through switch board, conduit with accessories, junction, pull, inspection boxes, control switch, socket, outlet boxes, ceiling roses, button/swan holder, connector etc



2 Frequency 50 Hz




± 6 %


350 MVA



2.06 POINT RATE

A The rate per point shall include supply, installation, connection, testing and commissioning of point as described under “point wiring”. The measurements of the points will be enumerated

2.07 SYSTEM OF WIRING

A Unless otherwise mentioned on the drawings, the system of point wiring shall be as follows:

The system of wiring shall consist of single core, FRLS insulated, 650/1100 volt grade, copper conductor wires/cables laid through exposed (surface mounted) PVC conduits as directed & wherever required, conduits shall be concealed in walls and slabs.

2.08 MATERIAL

A PVC Conduit

All non-metallic PVC conduits shall conform to IS: 9537 ( Part - 3 ). The conduit shall be planed and of type as specified in IS: 9537 and shall be used with the corresponding accessories (Refer IS: 3419 specification for fittings for rigid non metallic conduits). PVC conduits shall be rigid unplasticised, heavy gauge having 2.0 mm. wall thickness upto 20 mm. diameter conduit and 2.5 mm. wall thickness for all sizes above 20 mm. diameter

B M.S. Conduit

Conduits shall conform to IS: 9537 ( Part - 2 ), finished with galvanized surface. No steel conduit less than 25 mm. in diameter shall be used. Conduits shall be solid drawn of lap




welded type, with minimum wall thickness for conduits having 25 mm. and above diameter. The conduits shall be delivered to the site of construction in original bundles and each length of conduit shall bear the label of manufacturers. The conduit accessories such bends, coupling etc. shall be conforming to the relevant Indian Standard specification

C Boxes

1. All the boxes for switches, sockets and other receptacles, junction boxes, pull boxes and outlet boxes shall be fabricated from 2.0 mm. thick mild sheet painted with two coats of red-oxide and then two coats of enamel paints as called for. Colour of the paints shall be as approved by the client. The boxes shall have smooth external and internal finished surface

2. Boxes in contact with earth or exposed to the weather shall be of 2 mm. mild steel and hot dip galvanized after fabrication

3. Separate screwed earth terminal shall be provided in the box for earthing purpose

4. All boxes shall have adequate no. of knock out holes of required diameter for conduit entry

5. Switch boxes to receive switches, socket outlets, power outlets, telephone outlets, fan regulators, etc. shall be fabricated to the approved shape and size to accommodate all the devices without overcrowding.

6. Outlet boxes to receive ceiling fan shall be fitted with adequately sized rod 7. Hook to fix ceiling fan. The boxes shall be of minimum depth of 65 mm.

8. Boxes installed for concealed wiring shall be provided with suitable extension rings or plaster covers as required. Boxes for use in masonry block or tiled walls shall be square cornered tile type, or standard boxes having square cornered tile type covers. These boxes shall be installed in the center of the masonry block or tiles

9. Cast metal boxes installed in wet locations and boxes installed flush with the outside of exterior surface shall be gasketed

D Cover Plate

The cover of the boxes to receive outlet points shall be of best anodized sheet cut to

shape and size or plate of approved manufacturers of switches

E Cables

1. The cables shall conform to IS: 694. For all internal wiring FRLS insulated cables of 650/1100 volts grade, single core shall be used

2. The conductors shall be plain annealed copper conductors complying with IS: 1554

3. The conductors shall be circular copper conductor

4. The insulation shall be FRLS compound complying with the requirements of IS: 694. It shall be applied by an extrusion process and shall form a compact homogenous body.

5. The thickness of FRLS insulation shall be as set out in the relevant standards




6. The cores of all cables shall be identified by colours in accordance with the following sequence.

Single phase Red Three phase Red, Yellow, Blue Neutral Black Earth Green or Green/Yellow

7. Means of identifying the manufacturer shall be provided throughout the length of cable

8. Unless otherwise specified in the drawings the size of the cables used for internal wiring shall be as follows:

9. The earth continuity conductor shall be similar to circuit cables and shall be drawn through conduit alongwith other circuit cables. The size of the earth continuity conductor shall be as follows:

Nominal cross-section area of largest associated copper circuit conductor in sq.mm.

Nominal cross-sectional area of earth continuity conductor in sq.mm.

1.5 sq mm 1.0 sq mm 2.5 sq mm 1.5 sq mm 4.0 sq mm 2.5 sq mm 6.0 sq mm 4.0 sq mm

Separate circuit shall run for each water heater, kitchen equipment, window air conditioner, and similar outlets at location as shown on drawing

F Switches

1. Switches shall conform to IS: 3854, IS: 1293 and IS: 4615. The switches shall be single pole, single or two way as shown on the drawings or as specified. They shall be of Modular type rated for 250 volt, and of full 5/15 A capacity. They shall be provided with insulated dollies and covers

2. The switches shall be rocker operated with a quiet operating mechanism with bounce free snap action mechanism enclosed in an arc resistant chamber.

3. The switches shall have pure silver and silver cadmium contacts.

4. The switches shall be flush modular type.

5. The make of the switches shall be as indicated in the drawings or BOQ or make of material or as suggested and approved by the client.

6. The switches installed in outdoor area shall be industrial, metal clad type, and shall be provided in weather proof enclosures, complete with weather proof gasketed covers.

G Socket

1. The sockets shall conform to IS: 1293. Each socket shall be provided with control switch of appropriate rating. The sockets shall be moulded type, rated for 250 volts, and either of full 5 A or 15 A capacity, as mentioned on the drawings.

2. Sockets shall be of three pin type, the third in being connected to earth continuity conductor.

3. The socket shall be flush modular type.

4. The sockets installed in machine room, plant room or wet/damp area shall be




metal clad weather proof type.

5. The finishing and make of all the sockets shall be same as light switch.

6. The socket shall have fully sprung contacts and solid brass shrouded 7. Terminals to ensure positive electrical connections.

8. The sockets shall be provided with automatic shutters, which open only when earth pin of the plug inserts in the socket.

9. The socket shall be provided with three pin plug top suitable to the socket and of the same make as socket.


A Rigid PVC conduits shall be used for concealed wiring system. The conduits shall be concealed in the concrete slab, floor, walls, beams, columns etc.

3.01 FIXING OF CONDUITS

A Conduits embedded in concrete shall be installed in the framework before pouring concrete. The conduits shall be installed above the bottom reinforcing bars, and shall provide positive wire fastening of the conduit to the rein forcing rods at an interval of not more than one meter, but on either side of couplers or bends or outlet / pull / junction boxes or similar fittings, proper hold fast shall be fixed at a distance of 30 cm from the center of such fittings. Conduits embedded in the wall shall be fixed inside the chase. The chase in the wall shall be neatly made and be of ample dimensions to permit the conduit to be fixed in the manner desired. In the case of building under construction, chase shall be provided in the wall at the time of their construction and shall be filled up neatly with cement mortar 1:4 after erection of conduit and brought to the original finish of the wall. Cutting of horizontal chases in walls is prohibited. The conduits shall be fixed inside the chase by means of staples or by means of saddles not more than 60 cm apart.

B Conduits shall be so arranged as to facilitate easy drawing of wires through them. Entire conduit layout shall be done in such a way as to avoid additional junction boxes other than light points. The wiring shall be done in a looping manner. All the looping shall be done in either switch boxes or outlet boxes. Looping in junction or pull boxes are strictly not allowed. Where conduits cross building expansion joints, adequate expansion fittings or other approved devices shall be used to take care of any relative movement.

C All conduits shall be installed so as to avoid steam and hot water pipes.

D Conduits shall be installed in such a way that the junction, derivation and pull boxes shall always be accessible for Repairs and maintenance work. The location of junction / pull boxes shall be marked on the shop drawings and approved by the Employer.

E A separation of 200 mm shall be maintained between electrical conduits and hot water / chilled water lines in the building.

F Caution shall be exercised in using the PVC conduits in location where ambient temperature is 50 degree Celsius or above. Use of PVC conduits in places where ambient temperature is more than 60 degree C is prohibited. The entire conduit system including boxes shall be thoroughly cleaned after completion of installations and before drawing of wires.




G Separate conduits shall be provided for the following system. 15 / 20 Amp. Power outlets. 5/10 Amp. Outlets and lighting system. Telephone / intercom / CCTV / Fire Alarm / Music & public address system etc. Computer. UPS Power.

H Conduits shall be joined by means of plain couplers. The conduits shall be thoroughly cleaned before making the joints. In case of plain coupler joints, proper jointing material like a vinyl solvent cement (gray in colour) or any material as recommended by the manufacturer shall be used.

I Wherever necessary, bends or diversions may be achieved by bending the conduits or by employing normal bends. No bends shall have radius less than 2.5 times outside diameter of the conduit. Heat may be used to soften the PVC conduit for bending, but while applying heat to the conduit, the conduit shall be filled with sand to avoid any damage to the conduit.

J All the outlets for fittings, switches etc. shall be boxes of substantial construction. In order to minimize condensation or sweating inside the conduits, all outlets of conduit system shall be properly drained and ventilated, but in such a manner as to prevent the entry of insects, etc. Fixing between conduit and boxes, outlet boxes, switch boxes and the like must be provided with entry spouts and smooth PVC bushes. Joints between conduit and any type of boxes shall be effected by means of conduit couplers in to each of which shall be coupled smooth PVC bush from inside the box. In any case all the joints shall be fully watertight.

K Cables of AC supply of different phase shall be bunched in separate conduits. The number of insulated wires / cables that may be drawn into the conduits shall be as per the following table. In this table, the space factor does not exceed 40%. However, in any case conduits having lesser than 19 mm diameter shall not be used Wires carrying current shall be so bunched in the conduit that the outgoing and return wires are drawn into the same conduit. Wires originating from two different phases shall not be run in the same conduit.

3.02 SWITCH AND SOCKET

A Switches shall be installed at 900 mm above finished floor level unless otherwise indicated on the drawings. The switch controlling the light point or fan shall be connected on to the phase wire of the circuit and neutral shall be continuous,

B The cover plates to the switch box shall be fixed by means of sunk head brass cadmium screws.

3.03 DRAWING OF CONDUCTORS

A The drawing and joining of copper conductor or wires shall be executed with due regard to the following precautions, while drawing insulated wires into the conduits, care shall be taken to avoid scratches and kinks which may cause age of conductors. There shall be no sharp bends. Insulation shall be shaved off for a length of 15 mm at the end of wire like sharpening of a pencil and it shall not be removed by cutting it square or ringing.

B 1100 Volts grade either single core PVC insulated flexible wires that may be drawn in RIGID NON-METALLIC or RIGID PVC CONDUITS. Size of wire Size of conduit (mm)




(Nominal cross section area of conductor)

20 25 32 40 50

1.5 6 10 16 - - 2.5 5 8 14 - - 4 3 6 10 - - 6 2 5 6 - - 10 - 2 5 6 - 16 - - 3 6 6 25 - - 2 4 6 35 - - 2 3 5

C 1100 Volts grade either single core PVC insulated flexible wires that may be drawn in RIGID METALLIC conduits Size of wire (Nominal cross section area of conductor)

Size of conduit (mm)

16 20 25 32 40 50 63 1 6 7 19 30 - - -

1.5 5 5 12 24 - - - 2.5 3 6 10 17 - - - 4 2 3 8 13 - - - 6 2 2 6 10 - - - 10 - - 4 6 6 - - 16 - - 3 4 6 - - 25 - - 2 3 4 6 7 35 - - - 2 3 5 6 50 - - - - - 3 5

D All looped joints shall be soldered and connected through terminals block / connectors. The pressure applied to tighten terminal screws shall be just adequate, neither too much nor too less. Conductors having nominal cross section area exceeding 4 sq.mm shall always be provided with crimping type cable sockets. At all bolted terminals, brass flat washer of large area and approved steel spring washers shall be used. Brass nuts and bolts shall be used for all connections.

E Only certified wireman and cable jointers shall be employed to do joining work.

F For all internal wiring PVC insulated wires of 650/1100 volts grade shall be used. The sub-circuit wiring for point shall be carried out in looping system and no joint shall be allowed in the length of the conductors.

G Before the wires are drawn into the conduits the conduits shall be thoroughly cleaned of moisture, dust, and dirt or any other obstruction by forcing compressed air through the conduits.

The wiring shall be by looping back system, and hence all joints shall be made at main switches, distribution boards, socket outlets, lighting outlets and switch boxes only. No joints shall be made inside conduits and junction boxes.




3.04 LOAD BALANCING

A Balancing of circuits in three phase installation shall be planned before the commencement of wiring and shall be strictly adhered to.

Annexure - A Technical Data Sheets for Conduit

Sr. No. Technical Data Specific Requirement Vendor's Details

1 Type P.V.C./GI 2 IS Standard IS : 9537 Part-III 3 Colour Black/Grey/White 4 Duty Low/Meduim/Heavy 5 Fire Retardant Property Yes/No 6 Lead Free Yes/No 7 Corrosion Free Yes/No 8 Thermal resistance -5°C to +60°C 9 Dimension Details

9.1 Nominal Size (mm) 9.2 Outside Diameter (mm)

9.3 Tolerance on Outer Diameter (mm)

9.4 Inside Diameter (Min.) (mm) 9.5 Wall Thickness (mm)

10 Weight kG/Mtr 11 Tensile Strength kGf/cm2 > 500 12 Breakdown Voltage kV / mm > 18 13 Insulation Resistance MOhm > 100 14 Make

Accessories 1 Degree Elbow - Plain End

a. Degree 90/45/30 b. Material P.V.C. c. Radius d. Outside Diameter (mm) e. Inside Diameter (Min.) (mm)

2 Junction Box a. Material P.V.C.

b. Ways 1 way / 2 way / 3 ways / 4 Ways

c. Wall Thickness (mm) 3 Coupler

a. Material P.V.C. b. Outside Diameter (mm) c. Inside Diameter (Min.) (mm)

4 Tee




a. Material P.V.C. b. Outside Diameter (mm) c. Inside Diameter (Min.) (mm)

5 Closer (End Cap) a. Material P.V.C. b. Outside Diameter (mm) c. Inside Diameter (Min.) (mm)

6 Elbow a. Material P.V.C. b. Outside Diameter (mm) c. Inside Diameter (Min.) (mm)

Annexure - B

Technical Data Sheets for Wires

Sr. No. Technical Data Specific Requirement

Vendor's Details

1 Standard IS:5831:1984 IS 694 : 1990

2 ISI Marked Yes 3 Wire Size (sq mm) 0.5 4 Conductor Material Cu

5 Max DC Resistance at 20 Deg Cent (Ohm/km) 39

6 Current Rating (Amp) 4 7 Voltage Rating (Volts) 1100 8 Short Circuit Rating (kA) 9 Conductor Overall Dia (mm) 10 No. of Cores (1C/2C/3C) 1C 11 Type (Rigid/Flexible) Flexible 12 No of Wires/Core 16 13 Wire Dia (mm) 0.2 14 Each Core Dia (for Multicore Wires) (mm) NA 15 Twin Twisted (for Multicore Wires) NA 16 Insulation Material Standard IS:5831:1984 17 Insulation Material (PVC / XLPE / HR PVC) PVC 18 Nominal Insulation Thickness (mm) 0.6 19 Insulation Resistance MOhm 20 Fire Retardant Material FR PVC 21 Wire Overall Diameter (mm) 6.2 22 Wire Overall Weight (kG/Mtr) 23 Sheathed/Non-Sheathed Sheathed 24 Sheath Thickness (mm) 0.9 25 Max Operating Temp (Deg Cent) 70 26 Wire Color 27 Make POLYCAB





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF EARTHING SYSTEM


CONTENTS

SR.NO. DESCRIPTION PAGE NO

PART 1 GENERAL 2

1.01 SCOPE OF WORK 2

1.02 CODES AND STANDARDS 2

1.03 QUALITY AND ASSURANCE 3

1.04 INSPECTION AND TESTING 3

1.05 TRANSPORT, DELIVERY AND STORAGE 3


PART 3 INSTALLATION 8

RECORD OF REVISIONS







1.01 Scope of Work

A This Specification describes the requirements governing engineering, design, manufacture, packing, delivery at site, erection, testing and commissioning of Earthing System and relevant Equipment. All the items shall be manufactured in accordance with latest Indian/International Standards applicable to such material and requirements detailed in this technical specification. The work shall be executed according to most stringent of these requirements.



A All the materials to be supplied under this specification shall be of best quality and in conformity with, but not limited to the latest relevant Indian/International Codes and Standards and technical requirements provided hereunder.

B No. Title

IS:3043-1987 Code of Practice for Earthing

IS:2062-1999 Steel for General Structural Purposes – Specification

IS:2629-1985 Recommended Practice for Hot-Dip Galvanizing of Iron and Steel

IS:10238-2001 Fasteners - Threaded Steel Fastener - Step Bolts for Steel Structures

IS:209 Indian Standard – Zinc to be used for Galvanizing



24. Indian Electricity Act





E Compliance by the Bidder with the provisions of this specification shall not relieve the Bidder of the responsibility of furnishing equipment and components of proper design,




electrically and mechanically suited to meet the operating requirements under the specified service conditions and be suitable for the purpose of which they are intended.


G The Bidder should seek clarification on any aspect of the Specification, where it is believed that obscurity or ambiguity exists in the meaning or intent stated. Where a conflict occurs between the Bidder’s manufacturing standard, this Specification and the Purchase Order, the following shall apply in order of preference:

Purchase Order

This Specification






A The sample of earthing material to be supplied shall be submitted for approval prior to supply.


A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted price must include all the costs for necessary mode of transportation up to the site store. The material shall be supplied with required storage arrangements suitable for placing in open storage yard. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading and unloading of equipments at site should form part of offer.








18. Ambient : Dry















2 Frequency 50 Hz




± 6 %


350 MVA






2.05 GENERAL

A The earthing network shall consist of pipe type earthing stations, earthing grid, circuit protective conductors and bonding conductors. The electrodes and earth bonding of all relevant necessary non-current carrying metal parts of equipments/ apparatus shall be carried out as required.

B The system shall have a common earthing system as described in the specification. Besides common earthing system, individual earthing systems shall be provided as follows.

i. Transformer neutral grounding : min. 2 points

ii. DG set Generator neutral grounding : min. 2 points

iii. Electronic sensitive equipment earthing : min. 2 points

iv. UPS neutral grounding : min. 2 points

v. Lightning protection down conductor : as per design

C Sufficient numbers of electrodes interconnected by GI strip shall form earthing mat so that the overall earth resistance shall be less than 1 ohm for each individual earthing mat.

D The quantity of earth electrodes and other materials are indicated based on basic engineering. The Tenderer shall test the resistivity of soil at site. Exact number of earth electrodes shall be determined by the Tenderer to achieve the desired earth resistance value.

E The earth loop resistance to any point in the electrical system shall not be in excess of 0.5 ohms in order to ensure satisfactory operation of protective devices.

2.06 PIPE EARTH ELECTRODE

A GI pipe shall be of medium class 100mm dia, 3m in length and approx. 4.5mm thickness. Typical sketch showing details of pipe type earthing station is placed in the tender document for information.

B GI Pipe electrode shall be cut tapered at bottom and provided with holes of 4-5mm dia drilled not less than 7.5cm from each other up to 2m of length from bottom.

C Clamping of the earth leads to the earth electrode shall be made by clamp made of 50x6mm GI strip. The clamps shall be capable of providing a high pressure contact between the earth rod and the earth leads to achieve a low contact resistance. Two open ends of the strip shall be connected to the grounding met conductors using required size of hardware. The connection shall be made in the brick chamber so that it will also work as disconnecting link.

D When more electrodes are driven to form a group, the heads of the electrodes in the group shall be bonded to each other by means of a 50x6mm GI strip, laid at a depth of at least 600 mm in the soil.




E All other accessories like hardware for making connections, funnel with wire mesh, CI cover hinged on frame, charcoal, salt, etc. shall be supplied with each earthing station. The costs for all accessories shall be deemed to be included in the price of the earth electrode.

2.07 PLATE EARTHING STATIONS

A The plate electrode shall be 600 x 600 x 3.25/5(Thk.) mm copper plate or 600 x 600 x 6.15/12(Thk.) mm hot dip GI/CI.

B The earth resistance shall be maintained with suitable soil treatment.

C The earth lead shall be connected to the earth plate through Hot Dip G.I. bolts.

D The earthing conductors shall be of copper strip in case of copper earthing.

E G.I. pipe with funnel of approved quality shall be used for watering the earthing electrodes / stations.

F IS marked cast iron cover of appropriate dimensions shall be supplied as specified in IS: 3043 along with fabricated MS angle frame. The cover shall be hinged to the frame. The frame shall be grouted in brick masonry work of earthing station. The coverand frame shall be painted with bitumen paint after applying primer. Earthing station Tag No. shall be painted on top of cover as per designation given on the layout drawing.

G The hardware and other consumables for earthing installation shall be of copper/bras in case of copper earth plate and shall be hot dip galvanized iron material in case of G.I. earth plate.

2.08 EARTHING/GROUNDING MAT/PROTECTIVE CIRCUIT CONDUCTORS

A The grounding met shall be formed by making interconnections between earthing stations and grounding met as per the earthing layout drawing.

B Minimum depth of grounding conductor shall be 600mm. Generally, the conductors shall be laid as per layout, however wherever pipelines or cables shall be encountered en route, suitable modification for route shall be carried out at site during course of execution of work. Necessary protection to the conductors laid underground shall be provided with sand/bricks to prevent mechanical damage.

2.09 The joints between met conductors shall be done only by /brazing/welding, except the connections made with the earthing stations as mentioned elsewhere in this specification.

A Conducting petroleum jelly shall be applied to the contact surfaces of GI flats in case of bolted joints. All the brazed/welded joints shall be applied bituminous paint and shall be taped to prevent corrosion.

B When GI conductors are connected to copper/aluminium bus, the contact surfaces of GI shall be tinned or suitable bi-metallic washers shall be used between joints.

C Earthing conductors running along the steel structures shall be welded at interval of 1000mm and running on the walls of the buildings shall be cleated at interval of 750mm along the route.




2.10 GUIDELINES FOR EARTHING AND GROUNDING

A All the electrical equipment/metallic frames of electrical equipment operating at 250 volts and above shall be provided with two separate and distinct connections to the earthing met through the earth bus.

B Generally, the size of protective conductors used for electrical equipment with the earthing grid at two distinct points shall be as provided hereunder(MINIMUM REQUIRED).

Transformer/DG generator neutrals 50x6mm GI strip

HV Switchboards 50x6mm GI strip

LV Switchboards, APFC Panel 40x5mm GI strip

Lighting/Power distribution boards 25x6mm GI strip

GI cable trays 25x6mm GI strip

Sub-lighting distribution boards 8 SWG stranded GI wire

LT motor up to 5.5 kW 8 SWG stranded GI wire

LT motor of 110 kW 40x5mm GI strip

Local control stations/Welding sockets 8 SWG stranded GI wire

Junction boxes 12 SWG stranded GI wire

Steel structure/Pipes 25x6mm GI strip

Lighting fixtures, sockets, fans, etc. 14 SWG GI wire/PVC flexible copper wire green core

C All hardware to be used in the system shall be zinc passivated/cadmium plated.





3.01 ELECTRICAL AND PERFORMANCE REQUIREMENTS

A Metallic conduit shall not be accepted as an earth continuity conductor. A separate insulated / bare earth continuity conductor The earth continuity conductor be drawn inside the conduit shall be insulated.

B Non metallic conduit shall have an insulated earth continuity conductor of the same size as for metallic conduit. All metal junction and switch boxes shall have an inside earth stud to which the earth conductor shall be connected. The earth conductor shall be distinctly colored (Green or Green/Yellow) for easy identification.

C Armoured cable shall be earthed by two distinct earth connections to the armouring at both the ends and the size of connection being as for the metallic conduit.

D In the case of unarmoured cable, an earth continuity conductor shall either be run outside along with the cable or should form a separate insulated core of the cable

E Three phase power panel and distribution boards shall have two distinct earth connections of the size correlated to the incoming cable size. In case of single phase DB’s a single earth connection is adequate


A The plate/pipe electrode, as far as practicable, shall be buried below permanent moisture level but in no case less than 3 M below finished ground level

B The plate/pipe electrode shall be kept clear of the building foundation and in no case, it shall be nearer by less than 2 M from outer face of the respective building wall / column

C The plate electrode shall be installed vertically and shall be surrounded with 150 mm. thick layers of Charcoal dust and Salt mixture

D 20 mm. dia. G.I. pipe for watering, shall run from top edge of the plate / pipe electrode to the mid level of block masonry chamber

E Top of the pipe shall be provided with G.I. funnel and screen for watering the earth / ground through the pipe

F The funnel with screen over the G.I. pipe for watering to the earth shall be housed in a block masonry chamber as shown in the drawing

G The masonry chamber shall be provided with a Cast Iron hinged cover resting over the Cast Iron frame which shall be embedded in the block masonry

H Construction of the earthing station shall in general be as shown in the drawing and shall conform to the requirement on earth electrodes mentioned in the latest edition of Indian Standard IS: 3043, Code of Practice for Earthing Installation.

I The earth conductors ( Strips / Wires, Hot dip G.I. / copper ) inside the building shall properly be clamped / supported on the wall with Galvanized Iron clamps and Hot Dip GI




screws / bolts. The conductors outside the building shall be laid at least 600 mm. below the finished ground level/

J The earth conductors shall either terminate on earthing socket provided on the equipment or shall be fastened to the foundation bolt and / or on frames of the equipment. The earthing connection to equipment body shall be done after removing paint and other oily substances from the body and then properly be finished

K Over lapping of earth conductors during straight through in joints, where required, shall be of minimum 75mm. long and bitumen coated.

L The earth conductors shall be in one length between the earthing grid and the equipment to be earthed

M Minimum distance of 2 mtr shall be maintained between other electric conductor, earthing conductor and the conductor laid for the lightning protection system. Earthing and lightning protection system conductors shall be bonded to each other to prevent side flashover in case of non-availability of adequate clearance.

N The earthing met conductors, risers, earthing cables, etc. passing through walls shall be covered with galvanized iron sleeves for the passage through wall. Water stop sleeves shall also be provided wherever the earthing conductor enters the building from outside.

3.03 TESTING

A The entire earthing installation shall be tested as per requirements of Indian Standard Specification IS: 3043. The proforma shall be submitted to consultants for approval.

B The following earth resistance values shall be measured with an approved earth megger and recorded.

1. Each earthing station

2. Earthing system as a whole

3. Earth continuity conductors

C Earth conductor resistance for each earthed equipment shall be measured which shall not exceed 1 ohm in each case.

D Measurements of earth resistance shall be carried out before earth connections are made between the earth and the object to be earthed

E All tests shall be carried out in presence of the consultant / client

3.04 AS BUILT DOCUMENTS

A The bidder shall submit drawings indicating location of earthing stations, connection and path of earthing conductor, earth bus location and size of conductor.

B Test reports shall be submitted for records.

ANNEXURE; A

TECHNICAL DATASHEET FOR EARTHING STATION MATERIAL




Sr. No. Description Minimum Requirements Vender To Comply

1 Name of manufacturer 2 Model no. 3 Application For Substation 4 Equipment standard IS:3043 5 NominalOperating Voltage 12 kV 6 Short time Current Rating 50 kA rms for 1 sec

7 Frequency 50 Hz 8 PIPE specifications

8.1 Pipe make ISI marked 8.2 Hole for connection 8.3 Pipe class Class b 8.4 Pipe coating GI 150 microns min.

9 Material description 9.1 Type of electrode Dual pipe

(Pipe in pipe technology)

9.2 Diameter of outer GI electrode 80mm 9.3 Outer pipe thickness 4 mm 9.4 Diameter of inner GI electrode 50mm 9.5 Inner pipe thickness 3.6 mm 9.6 Length of electrode 3 Mtr 9.7 Terminal size 50x12 mm GI

10 Chemical specification 10.1 Chemical brand 10.2 Back fill compound (bfc) Graphite, Alumina 10.3 Chemical specification Graphite, Sodium Sulphate,

Alumina Oxide, Silica Oxide, Feric Oxide, Titanium Oxide, Calcium Oxide, Other Ash Content And Natural Minerals Which Is Resistance Lowering Grounding Minerals.

10.4 PH value 7.0 10.5 Resistivity Ohm-Mtr 10.6 Density kg/cube3 10.7 Specific Gravity 10.8 Melting Temperature >500`c

11 Earth resistance value <= 10 ohm-mtr soil resistivity

11.1 <= 25 Ohm-Mtr soil resistivity

<= 50 Ohm-Mtr soil resistivity







11.2 ROHS certified Yes 11.3 Certified by CPRI (central power

research institute)




ANNEXURE: A

TYPICAL EARTHING DETAILS (PIPE TYPE EARTHING-IS:3043)




ANNEXURE: B

TYPICAL EARTHING DETAILS (PLATE TYPE EARTHING-IS:3043)




ANNEXURE: C

TYPICAL EARTHING DETAILS (EQUIPOTENTIAL BAR)





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OFELECTRICAL ACCESSORIES AND CONSUMMABLES


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2


RECORD OF REVISIONS






PART -1 (GENERAL)

1.01 SCOPE OF WORK

A This Specification describes the requirements governing engineering, design, manufacture, packing, delivery at site, erection, testing and commissioning of Electrical Installation Accessories, Electrical Safety Items and Personal Protective Equipment and other consumable. All the items shall be manufactured in accordance with latest Indian/International Standards applicable to such material and requirements detailed in this technical specification. The work shall be executed according to most stringent of these requirements.



A All the materials to be supplied under this specification shall be of best quality and in conformity with, but not limited to, the latest relevant Indian/International Codes and Standards and technical requirements provided for each item elsewhere in the specification except as modified by the Client in the Purchase Order.

B Compliance by the Bidder with the provisions of this specification and relevant Codes and Standards shall not relieve him of the responsibility of furnishing apparatus and accessories, to be supplied by him, of proper design, which shall conform to meet electrically and mechanically the operating requirements under the specified service conditions and shall be suitable for the purpose of which they are intended.




PART – 2 (TECHNICAL REQUIREMENTS)




21. Ambient : Dry

B 1 Maximum Temperature 45 deg C











2 Frequency 50 Hz




± 6 %


350 MVA



2.03 GENERAL

A The construction of transformer and all the accessories shall be suitable to suit ambient




climatological and installation conditions.

B Details of approved makes for the items to be supplied are provided separately. Alternative equipment must not be used, unless written approval has been given by the Client.

C All the materials, hardware and consumable to be supplied by the Bidder shall be new, unused and of best quality. The Bidder shall get the samples of materials approved by the Client/the Consultant prior to supply and installation. No deviation is acceptable in this regard.

D The Bidder shall order well in time, the required materials for the execution, after obtaining specific approvals of the material/samples from the Client. Requests from the Bidder to supply "equivalent" materials on the grounds of long delivery period / non-availability in market of the approved samples will not be entertained under any circumstances.

2.04 STRUCTURAL STEEL SECTIONS AND FABRICATION CONSUMABLE

A The scope of specification covers supply of structural steel sections such as MS angles, MS channels, MS flats, I-sections, etc. as required for fabrication of base frame for electric panels/lighting boards, supports for cable trays, brackets for lighting fixtures, fittings for cable trays, transformer foundation, etc.

B The structural steel sections such as ISMB, ISMC, angles, T-section, etc shall be conforming to the following Codes and Standards read with the latest amendment thereof.

i. IS:800-1991 Code of Practice for Use of Structural Steel in General Building Construction

ii. IS:2062-1999 Steel for General Structural Purposes - Specification iii. IS:808-1964 Indian Standard for Equal and Unequal MS Angles (ISA), MS

Channels (ISMC), MS I beams (ISMB) iv. IS:2629-1985 Recommended Practice for Hot-Dip Galvanizing of Iron and

Steel v. IS:10238-2001 Fasteners - Threaded Steel Fastener - Step Bolts for Steel

Structures vi. IS:209 Indian Standard – Zinc to be used for Galvanizing

C Generally, structural steel sections ISMB 75/100, ISMC 75/100, ILA 50x50x5, ILA 40x40x5, ILA 25x25x6, 25x6 flat, 25x3 flat, etc. shall be supplied. 6mm thk Chequered plates shall also be supplied for covering the indoor cable trenches. The scope of supply shall not be limited to these sections. The other sections shall also be supplied, if required.

D Structural steel sections shall be new, free from kink/deformation/twist/buckle/bend, and free from rust.

E Welding electrodes of approved grade, make and quality shall be used for the fabrication. Welding rods shall conform to IS:814 or IS:815. All other consumable for welding work shall be considered for supply.

F In case specifically asked for, the hot-dip galvanized steel sections shall be supplied.

2.05 GALVANIZED STEEL PRE-FABRICATED LADDER TYPE CABLE TRAYS (WITH ACCESSORIES)




A The structural steel to be used in the cable trays and hot-dip galvanizing of sections shall be conforming to the Indian Standards specified above.

B Fabrication of Tray / Ladder and accessories at site and welding is not permitted. In unavoidable circumstances, If any cut or holes are made in the trays/Ladder/accessories, zinc spray need to be applied over the surface. The metal edge has to be protected by edge protection sleeves to avoid cable damage. Edge of the supports has to be protected with plastic END caps. Screwed connections and internal fixing Devices should not create any damage to the cable when correctly fixed. Sudden or jerky motions shall not be used to tighten reusable screw connections.

C Cables shall run in cable tray/ladder mounted horizontally or vertically on cable tray support system which in turn shall be supported from floor, ceiling, overhead structures, trestles, pipe racks, trenches or other building structures using prefabricated mounting accessories.

D The cable trays shall be supplied in standard lengths of 3000mm.

Standard width of the tray shall be as follows:

Width: 50, 100, 150, 200, 300, 400, 500, 600 & 750 mm.

E Rung and Accessoreis

Maximum rung spacing in the ladder shall be 300mm. The rung’s should be made of C profiles suitable to fix cables by special metal clamps. All the ladder accessories like Bend’s, TEES’s, Cross over’s etc should be designed in accordance with IS and shall be factory fabricated. The accessories shall be made from the same material as of the ladder and modular type, it should be connected with the ladder by using fasteners

F Cover for Cable Tray:

Cover for trays/ladders to protect the cable insulation from falling objects, water droplets, and harmful effects of ultraviolet rays and accumulation of dust. The cover shall be made either from Hot Dip Galvanized sheet steel or superior quality Double Dip Galvanized Sheets. For Outdoor application, Double dip Galvanized material shall be used. The covers should be fitted properly to the Ladder / Tray by using pre fixed and tested locks which ensure that covers are fitted rigidly to Tray / Ladder. For outdoor application in high wind areas, additional cross over beadings to be used for fixing the cover on tray / ladder of width more than 500 mm.

G Pre-fabricated cable trays in straight lengths and all its hardware shall be capable of withstanding without permanent deformation and/or damage the mechanical stresses resulting from load of various types and sizes of cables laid. Weight bearing capability shall be sufficient to meet specified requirements without any damage to the equipment.

H Cable tray / Ladder, bend, T Bend, cross, and all supports are to be tested for Safe Working Load (SWL), deflections, Impact resistance, Salt Spray & Electrical continuity test according to IS mentioned above. The cable tray/ladder should not deflect more than 1/100th of the span length at SWL in Mid span and the transverse deflection of all mounting accessories at SWL shall not exceed 1/20th of the length. The cable tray / cable ladder should be tested up to 1.7 times SWL at minimum and maximum room temperature. The temperature classification of cable tray system should be - 5 to + 150°C.The relevant details of SWL and the load chart with respect to SWL, supporting distance and the




deflection should be according to the following chart.

Safe Working Load (SWL) with a span length up to 3 meters

Description Side

Height (in mm)

Width (in mm)

Span length (in meters) 1.5m 2m 2.5m 3m Permitted Load (in kg/meter)

Perforated Cable Tray

35 50 - 300 125 90 50 - 60 50 - 600 150 100 50 - 85 100 - 600 175 110 50 - 110 100 - 550 185 130 75 60

Cable Ladder 45 200 - 600 180 140 100 55 60 200 - 600 - 225 150 100 110 200 - 600 - 310 200 140


Description Side

Height (in mm)

Width (in mm)

Span length (in meters) 4m 5m 6m 7m 8m 9m 10m

Permitted Load (in kg/meter)

Perforated Cable Tray for long span distance

110 200 - 300 160 110 75 - 20 - - 400 - 600 200 150 100 - 40 - -

160 200 - 300 230 180 140 100 70 - - 400 - 600 250 200 160 130 100 - -

Cable Ladder for long span distance

110 200 - 300 160 110 80 40 - - - 400 - 600 210 150 100 70 - - -

160 200 - 300 230 180 140 100 70 - - 400 - 600 250 200 160 130 100 - -

200 200 - 600 - - 300 250 200 140 100

2.06 WIRED MESH PRE-FABRICATED CABLE TRAYS – CARBON STEEL WITH HOT DIP GALVANIZING PROCESS (WITH ACCESSORIES)

A Cable trays shall be manufactured from steel wires (CI), welded together and bent into final shape. All cable trays, except the 30x50, shall be manufactured with a longitudinal ‘T-welded’ safety edge.

B Trays shall be constructed with a 50 mm x 100 mm mesh configuration.

C Internal widths of 50 mm, 100 mm, 150 mm for heights of 30 mm / 54 mm

D Internal widths of 300 mm, 400 mm, 450 mm and 500 mm for heights of 105 mm

E The surface treatment chosen shall depend on the environment wherein the product will be installed.

F The positive contribution made by each type of surface treatment and each type of stainless steel shall be demonstrated by means of salt spray tests (SST) performed in accordance with the relevant Indian standard.




G Hot dipped galvanised after manufacture for at least 360 h of SST

H Assemblies with specific fire-resistant properties must have certificate issued by an approved laboratory in accordance with the tests described in the standard DIN 4102-12. The wire cable tray short-circuit resistance must be tested by an independent laboratory.

I For the purpose of assembling the various wire cable tray, only fast coupling systems or screw-based systems must be used. These must be designed, mechanically tested and supplied by the wire cable tray manufacturer. The electrical resistance of the joints must not exceed 50 mΩ and must be tested in accordance with the procedure described in the standard IEC 61537

J Only supports, brackets or hangers designed, mechanically tested and supplied by the wire cable tray manufacturer must be used. The loading capacities of the brackets and the hanger torques must be tested in accordance with the standard IEC 61537.

K To enable earthing every 15 m, bimetal terminals or tin-plated aluminium connectors must be used. These must be recommended and tested by the manufacturer.

L The surface treatment chosen shall depend on the environment wherein the product will be installed. The positive contribution made by each type of surface treatment and each type of stainless steel shall be demonstrated by means of salt spray tests (SST) performed in accordance with the standard EN 9227. In case of Electro zinc plated after manufacture in accordance with the relevant IS/EC.

M Mesh tray and all mounting supports are to be tested for Safe Working Load (SWL), deflections, Impact resistance, Salt Spray & Electrical continuity test according to IS. The cable tray should not deflect more than 1/100th of the span length at SWL in Mid span for mesh trays and the transverse deflection of all mounting accessories at SWL shall not exeed 1/20th of the length. The mesh tray should be tested up to 1.7 times SWL at minimum and maximum Temperature. The temperature classification of mesh tray system should be - 5 to + 150°C. The relevant details of SWL and the load chart with respect to SWL, supporting distance and the deflection should be according to the following chart.


Description Side

Height (in mm)

Width (in mm)

Span length (in meters) 1m 1.5m 2m Permitted Load (in

Kg/meter.)

Mesh cable tray

35 50 - 150 25 11 10

200 30 14 10 300 75 22 15

55 50 - 150 25 12 8 200 - 400 60 28 25 500 - 600 75 38 25

105 100 – 200 80 55 37 300 – 400 110 75 53 500 – 600 125 85 60




2.07 RCC HUME PIPES / UPVC PIPES

A RCC hume pipes, NPZ-100, of generally 100mm, 150mm, 200mm dia shall be supplied along with collars in required numbers, which shall be installed across roads/drains/water trenches for safe crossing of cables.

B UPVC Pipes of 4 kg class shall be used wherever specified for small size or ELV system cabling with necessary accessories.

2.08 MATERIALS FOR MINOR CIVIL WORKS

A The materials to be used for civil works shall conform to following Indian Standards.

i. IS: 2212-1991 Code of practice for Brickwork ii. IS: 260 Ordinary Portland Cement, 33 Grade

B Material, such as bricks, cement, sand, metal, sealing compounds, putty, etc., required to carry out minor civil works like construction of brick masonry chambers for earthing stations, grouting of foundation bolts, finishing of openings, sealing, etc. shall be supplied by the Bidder. The material shall be of approved make (Wherever applicable). The Bidder shall consult the Client before procuring the materials.

2.09 SAFETY EQUIPMENT

Danger Notice Boards

A Metallic Danger Notice Boards conforming to IS:2551-1963 “Danger Notice Plates” and following technical specification shall be supplied for each voltage level specified as required.

i. Material of construction MS plate/Self sticking Polyester Film ii. Danger symbol Standard Skull-bone iii. Voltage inscription 11000/415 volts iv. Languages English / Hindi / Gujarati v. Painting Synthetic enamel

Portable Fire Extinguishers

B The Dry Chemical Powder (DCP) type portable fire extinguishers shall be supplied, which shall be conforming to IS:2171-1999 “Specification for Portable Fire Extinguishers Dry Powder (Cartridge type)”.

C The fire extinguishers shall be as per following technical specification.

Capacity 2.5 kg 5.0 kg i. Discharge time (Min – Max) 8 -10 sec 15 – 20 sec ii. Minimum jet length 2.0 mtr 4.0 mtr iii. Test pressure 30 kg/cm2 30 kg/cm2 iv. Charge weight 5.5 kg 10 kg v. Approx. Discharge hose length NA 500 mm high pressure vi. Gas cartridge weight 40 gm 120 gm vii. Wall hanging bracket To be supplied To be supplied

D The portable extinguishers shall be of free standing type and shall be capable of




discharging freely and completely in upright position. Each extinguisher shall have the instructions for operating the extinguishers on its body itself.

E The fire extinguishers shall be supplied with initial charge and accessories as required including suitable clamps for mounting on walls or columns.

F The extinguishers shall be painted with durable enamel paint of fire red color conforming to relevant Indian Standards.

Sand Buckets with MS Stand

G Standard FIRE bucket shall have round bottom, made out of 24 gauge GI sheet with extra handle at bottom, duly painted white inside and red outside with FIRE mark, filled with dry sand, suitable to hang on the MS stand to provided or on hook fixed on the wall. The bucket shall be of 9 ltr capacity.

H The stand to hang FIRE buckets shall be fabricated from steel and suitable for hanging 4 nos. of buckets. The stand shall be grouted on the ground in the switchyard or transformer yard. The stand shall be 1500mm L x 900mm H frame made out of 40mmx40mmx5mm angle iron with cross supports for legs, welded with four hooks and duly painted with one coat of red oxide primer and two coats of approved enamel red paint. The fabrication shall be charged to the item provided in the specification document elsewhere.

I The buckets shall be supplied filled with the dry clean river bed sand.

Safety hand gloves

J Safety rubber hand gloves shall conform to IS:4770-1991 “Rubber Gloves for Electrical Purposes (1st Revision)” and shall be suitable for voltage level of 11000 volts and 600 volts. The manufacturer’s Test Certificate in original for each pair of hand gloves shall be furnished.

Rubber mats

K Rubber mats shall conform to IS:5424-1969 “Rubber Mats for Electrical Purposes”.

L Rubber mats suitable for voltage levels of 33000 volts and 415 volts shall be supplied. The manufacturer’s Test Certificate in original for each mat shall be furnished.

M The size of mats shall be generally 1000 width x 2000 mm length and thickness shall be as per table below. The mats shall be corrugated on one side.

N PROPERTIES:

1. Color : Blue without Metallic Derivatives

2. Thickness : Voltage Systems Thickness

(A) Up to 3.3 KV - 2.0 mm thick

(B) Above 3.3 to 11 kV - 2.5 mm thick




(C) 11 kV to 65 kV - 3.0 mm thick

O FEATURES:

1. CPRI Tested 2. High Die Electric Strength Up to 65 KV. 3. Insulation Resistance Up to 1494000 Mega Ohm. 4. Fire Retardant. 5. Good Mechanical Properties To With Stand Load and Movement of Breaker Trolleys and Associated Electrical Equipment including heavy foot traffic. 6. No Adverse Effect of Acids, Alkalis and Transformer Oil. 7. Manufactured Without Any Metallic Derivatives 8. Suitable For Both A.C & D.C Electrical Installations 9. Easy To Install, Can Be Pasted. 10. Water And Moisture Proof, Does Not Decay. 11. High Tensile Strength and Elongation Properties.

P Test parameters:

S.NO. Details of the Test Unit Poly Electro safe, 2.0 mm thickness 1 Tensile Strength N/mm2 22.40 2 Elongation % 318.50 3 Insulation Resistance Mega Ohm 14, 94, 000 4 Die Electric withstand Test KV 30 KV for 1 min 5 Die Electric withstand Test KV 62.0 6 Effect of fire Second 1.0

7 Effect of Acid, Alkali, Diesel

% -19.8 & + 2.31 of Original value & Transformer Oil 8 Ageing Test % -1.89 & + 4.10 of original value 9 Leakage Current Test in oil Ma 0.2 ma at 22 KV

Above test parameters are typical for 2.0 mm thickness rubber mat. Vendor to produce same for approval for all other sizes.

Shock treatment chart

Q Standard shock treatment chart printed in Gujarati and English language, duly framed and laminated on wooden frame shall be supplied and hanged on the wall.

First Aid Box

R Standard First Aid Box duly filled in with basic medicines and dressing materials as per relevant Indian Standard shall be supplied and installed in the Electrical Control Room.

2.10 LOCAL PUSH BUTTON STATIONS

A Push buttons and related control switches shall be complied to IS-6875

B CONSTRUCTION FEATURES:

The constructional features of the local push button stations shall be as follows:

1. Metal enclosed, weather proof, suitable for mounting on wall or steel structures. The




enclosure shall be die cast aluminium or sheet metal of 2 mm thickness.

2. Outdoor type push buttons shall be completely, weather, dust and vermin proof and shall be provided with canopy. Degree of protection shall be IP:55.

3. Metal parts shall be given tropicalizing treatment as pre standards and painted with one coat of epoxy primer and two coats of light gray epoxy paint.

4. Provided with inscription plates of rear engraved Perspex with white letters on black background. The letter size shall be 6 mm.

5. Provided with two earthing terminals suitable for 14 SWG G.I wire.

6. Provided with removable undrilled gland plate and cable glands for appropriate sizes of cable. The cable entry shall be form the bottom.

7. Push button contact shall be designed for extra robust both mechanical and electrical operation. High quality material shall be used in their construction to ensure mechanical life exceeding 10 million switching operations. The contact shall be of silver alloy of 10 A continuous current rating.

8. All push buttons shall be:

i) Fitted with one (1) normally open and one (1) normally closed contacts rated to carry and breaks 6 Amps at 415 Volts (10 A at 240 V AC)

ii) Provide integral escutcheon plates marked with its function. iii) The open/close/start push buttons shall be of the momentary contact push to

actuate type and shall be green in colour.

C TYPE OF PUSH BUTTON STATIONS:

Push button station, suitable for indoor/outdoor installation and shall comprise two push buttons viz 'START' and 'STOP' for control of non-reversible motors with on indicating lamp. Both the P.B. shall be of lockable type with key.

D FLOOR JUNCTION BOX:

The junction box shall be made out of 2 mm mild steel sheet.

1. The total depth of junction box shall be 65 mm while the width and length shall be 300 mm.

2. The lower compartment shall accommodate the cables running through the junction box.

3. The upper compartment shall be used for diverting cable out of floor Trunking for further drawing through the conduit.

4. The upper compartment shall be provided with knock out for conduit entry on two opposite sides perpendicular to main run of the floor trunking.

5. The partition plate between upper and lower compartment shall have opening in staggered way for bringing out cable from Trunking.

6. The top cover of the junction box shall be hinged type and shall be made from brass / SS. So as to give decorative look to the exposed cover top.

7.





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OFACCESSORIES AND CONSUMMABLES


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 4

1.02 PRE-COMMISSIONING CHECK, TESTING AND COMMISSIONING – GENERAL REQUIREMENTS 4

1.03 SCOPE OF WORK 4 1.04 ERECTION EQUIPMENT, TOOLS & TACKLES 5 1.05 TESTING INSTRUMENTS 6 1.06 INSTALLATION OF LOCAL CONTROL STATIONS (PB STATIONS) 6 1.07 INSTALLATION OF CABLE TRAYS 6 1.08 INSTALLATION OF JUNCTION BOXES 7 1.09 INSTALLATION OF WELDING AND METAL CLAD RECEPTACLES 7 1.10 INSTALLATION OF LIGHTING FIXTURES - LUMINAIRES 8 1.11 STRUCTURAL STEEL FABRICATION AND ERECTION 10 1.12 MINOR CIVIL WORKS 11 1.13 INSTALLATION OF SAFETY ITEMS 11

RECORD OF REVISIONS






1.01 Scope of Work

A This specification and the scope of work are intended to cover engineering and design, supply of erection consumable F.O.R. site, arranging erection tools-tackles, testing instruments, etc. required for satisfactory erection, pre-commissioning checks, site testing and commissioning of total Electrical System.

B All equipments/materials shall be installed adopting the best engineering practices and in conformance with the relevant Indian Standards, Indian Electricity Rules and The Factories Act. It is the responsibility of the Bidder to ensure that the electrical installation shall be supplied and erected by him to the total satisfaction of The Electrical Inspectorate Authority, Gujarat, any other statutory body having jurisdiction in the area and also the Client.

C Irrespective of fact whether it is specifically mentioned or not, all the components shall be deemed to have been included in the specification and shall be provided by the Bidder as required for proper functioning of the offered equipment.

D The technical specification for the electrical installation includes required technical specification and data for respective activity. The Bidder shall consider this data for the price bid purpose. However, for offering a best cost effective design and/or fulfilling the contractual obligations, should the Bidder want to offer alternatives as deemed fit, the same shall be offered separately duly supported by the detailed reasons and justification. Once the agreement is reached and the contract shall be awarded, no changes shall be permitted during the execution.

E These specifications shall also be read in conjunction with relevant statutory Acts and Rules applicable to electrical installation works, relevant TAC requirements, and applicable latest Indian/International Codes and Standards

F It shall be the contractor’s responsibility to be, or to become, knowledgeable of the requirements of respective Standards and Codes. Any alternations or changes to the equipment to make it meet Standards and Codes requirements shall be at the expense of the Contractor.

G Details of preferred makes for the items to be supplied are provided seperately. Alternative equipment must not be used, unless written approval has been given by the Client.

H Compliance by the Bidder with the provisions of this specification shall not relieve him of the responsibility of furnishing apparatus and accessories, to be supplied by him, of proper design and executing entire installation work conforming to meet electrically and mechanically the operating requirements under the specified service conditions and suitable for the purpose of which they are intended.

I The skilled technicians deployed for executing electrical installation works such as checking, testing and commissioning of panels, motors, cable terminations, lighting, etc. should have valid Electrical Wireman’s Permit issued by the Government of Gujarat. Any technician found working on such installation without required document should be removed forthwith and the Bidder shall be penalized for the same by reporting to the




statutory authority.

J All required documents in original and copies shall be produced by the Bidder prior to commencement of work at site to the satisfaction of the Client.

K The Bidder shall maintain proper measurement books, register for daily attendance of staff and technicians, daily progress report ands submit to the Client.

L The Bidder shall have all necessary equipment, tools-tackles and testing instruments to undertake the complete work in the scope as specified with utmost safety. The Bidder shall bring to the site following equipment, but not limited to, before commencement of work.

M The Bidder shall verify exact location for installation of transformers, HT/LV panel, LDB, PDB, lighting fixtures, etc. and shall ascertain cable routes, earthing grid layouts in accordance with the layout drawings to be designed and prepared by him before starting actual work and got approved from the Client/Consultant.

N The Bidder shall interact with Engineer-in-charge for civil works such as groves, openings, holes, inserts etc., as required for installation work, in walls, floors, ceilings or any other part of buildings or roads which are not constructed at the time when the Bidder commences his work. This action shall be taken well before the construction of the relevant portion of such work so that Engineer-in-charge may make effort to execute the work through the civil contractor. The Bidder shall be responsible for explaining the civil contractor furnishing proper drawings for the work involved. In case the construction of relevant part of building is completed by the civil contractor due to failure on part of the Bidder in not giving proper and timely notice for such requirement, the Bidder will have to do all the work involved to the complete satisfaction of the Engineer-in-charge at no extra cost.

O The Bidder shall design, provide and install any and all necessary supports, brackets, clamps, etc. in addition to those required in this specification as directed by the Client, if required, under the item of fabrication work specified.

P The Bidder shall keep the Client’s premises clean and free of debris and rubbish caused by the work. At the end of the day and completion of total work, the work site shall be made thoroughly clean. Rubbish, debris, wastage, etc. shall be dumped to respective areas earmarked for such purpose.

Q Utmost care shall be taken while handling, shifting, site location, erection, testing and commissioning of all equipments. The manufacturer’s instructions and requirements specified in the respective technical manual shall be strictly adhered to for installation work of equipment. The room or place, wherein the equipment to be installed, shall be kept as clean and dry as possible and free from all the debris.

R When handling or shifting the electrical panels and other major equipment like transformers/DG sets, care shall be taken to use correct type of lifting devices such as chain pulley blocks, slings, etc. No parts shall be subjected to undue strains and sudden stresses.

S HV and LV Switchgear, APFC panels, AMF Panel, etc. shall be supplied with loose components packed in separate boxes. Such loose components shall be installed by the




Bidder in accordance with the respective manufacturer’s drawings and shall be wired as per schematic wiring diagrams.

T The Bidder shall be responsible at his own expense for making necessary arrangements for Electrical Inspector's visit to the site for the inspection of the electrical installation and obtaining his approval for the electrical installation carried out by him. The inspection fees shall be paid by the Client upon getting necessary intimation from the Bidder/the Statutory Authority.

U The Bidder shall be prepared to work as per the priorities assigned by the Client, and shall complete the commissioning of the systems in the sequence as required by the Client. The Bidder shall programme his work in such a way that it does not hold up the general construction work of any other trade.

V In case it would be necessary to call for the manufacturer’s erection engineer for the electrical equipment such as transformers, HV switchgear, LV panels, DG sets, etc. in the capacity of the Supervisor, the Bidder shall call for such services at his own expenses and the price for such activities shall be deemed to be included in the quoted price.

W All electrical equipment such as transformers, HV/LV switchgear cubicles, VCB, PMCC, LDB, HT/LT cables, etc. and various components supplied loose and all other materials shall be thoroughly examined upon receipt at site to determine if any damage or loss was sustained during transit after removing the packing except bottom wooden pallet, wherever provided. If any visible sign of damage or incorrect handling is evident, the Bidder shall immediately notify Engineer-in-charge and necessary action for corrective action shall be taken immediately.

X In case the HV, and LV switchboards, Lighting Boards, etc. shall be energized after a time lag after erection, all such boards shall be kept covered with heavy polythene sheets after erection till they are subjected to testing and commissioning to avoid dust ingress.

1.02 PRE-COMMISSIONING CHECK, TESTING AND COMMISSIONING – GENERAL REQUIREMENTS

A After completing the erection of equipment, the pre-commissioning checks shall be carried out jointly by the Bidder and the Client in accordance with the detailed checklist provided for the respective equipment or system in the specification document. The details provided hereunder are indicative to enable the Bidder to consider the efforts required to perform the activity. Any deficiency observed during pre-commissioning checking shall be attended by the Bidder before commissioning and reported.

B HV test shall be carried out applying voltages as follows, wherever specified.

Rated voltage up to 1000V 3.3 kV 6.6 kV 11 kV DC test voltage 2 kV 7 kV 12 kV 22 kV

AC test voltage 2.5 kV 8 kV 15 kV 26 kV

1.03 SCOPE OF WORK

A The scope of installation, testing and commissioning shall include, but not limited to, the following items.

Sr. Item Remark




1 Distribution transformers Separately attached

2 MV VCB switchboards Separately attached

3 LV Panels, APFC Panel, Lighting distribution board, Sub-lighting distribution boards, Power distribution board.

Separately attached

4 Standby DG sets, accessories, DG set AMF panel

Separately attached

5 Laying and termination of MV XLPE cables and 1100V grade LT XLPE/PVC aluminium/copper armoured power/control/instrument signal cables.

Separately attached

6 Installation of MV outdoor and indoor cable end terminations.

Separately attached

7 Wellglass, street lighting, and industrial indoor lighting fixtures on walls, poles, structures, ceiling, etc. inclusive of installation of controlgear boxes, PVC wires between CG Box and fixture, complete.

8 Welding receptacles, metal clad receptacles

9 Local push button type control stations

10 Laying of RCC/GI pipe sleeves at road crossing, at motor terminations, etc. and drawing cables through it.

11 Fabrication of supports/clamps for PB stations, lighting fixtures, and clamps for cable supports, and foundations frames, etc. including painting work

12 Pipe Pipe type earthing stations, ground bus on wall/structures, laying and termination of earthing grid conductors, equipment connections, etc. type earthing stations, ground bus on wall/structures, laying and termination of earthing grid conductors, equipment connections, etc.

13 Erection of Steel tubular poles and J-type (Stanchion type) pipe poles (outdoor lighting)

14 Fixing of GI spacers and saddles, hardware, etc. for cable laying on walls, structures.

Other ancillary work as mentioned below : i. All required installation tools-tackles, cranes, fork lifts, testing instruments, etc. ii. Providing erection equipment for cable laying, screw jacks, rollers, pipes,

etc. iii. Loading/unloading, shifting at site all the equipment to be erected under the

scope of work and returning of excess material to stores. iv. Pre-commissioning checks, testing, trials (wherever applicable) for all




electrical equipment such as Transformers, 11 kV HV Switchgear, Main Distribution Boards, PCC/MCC panels, Lighting distribution boards, Lighting fixtures, Earthing system, HT/LT cables, etc as per scope of work.

v. Minor civil works. vi. The manpower of supervisory category, skilled/semi-skilled technicians,

unskilled labour, etc. as required for completing the work.

1.04 ERECTION EQUIPMENT, TOOLS & TACKLES

A i. Lifting tackles, chain pulley blocks, crane, trailer, screw jacks, etc. of appropriate capacity (contract for hiring of some equipment if not available).

ii. Portable grinders, Hand drilling machines. iii. Gas cutting sets/Welding machines. iv. Pipe bending machine and Pipe threading tool. v. Portable drilling machine with bits of assorted types/sizes. vi. Torque wrench. vii. Conduit dye set. viii. Leveling instrument. ix. Hand operated and hydraulic cable lug crimping tools. x. Portable electric blower with air heating attachment. xi. Aluminium ladders, extendable ladders and stands, etc. xii. Safety accessories for welding, safety helmets, ear plugs, aprons, safety

shoes, hand gloves, electrical safety hand gloves, safety belts, etc. xiii. Electrical technician’s tool kit – containing insulated pliers, insulated

spanners, insulated screw drivers, cutters, hacksaw, hammer, power tester, etc. (separate for each person).

xiv. Tools for excavation, shovel, trikam, etc. and civil masonry work.

1.05 TESTING INSTRUMENTS

A i. 1000V and 500V hand operated megger. ii. 5000V motorized megger. iii. Phase sequence indicator. iv. Power analyzer, 3-phase showing all system parameters. v. Earth megger. vi. Single phase variac, Secondary current injection test set. vii. Multimeter. viii. Clip on meter. ix. Transformer ratio test meter. x. Relay testing kit suitable for numerical relays. xi. Lux level meter to measure illumination levels. xii. AC and DC portable high voltage test set, range of 30 kV or more. xiii. Continuity testers of extra low voltage, preferably 6V.

1.06 INSTALLATION OF LOCAL CONTROL STATIONS (PB STATIONS)

A Installation of Local Push button stations shall be done as mentioned below.

Erection procedure

B For fixing the Local Control Stations (LCS) on wall or steel structure, steel frame shall be fabricated using MS angles/flats of appropriate size. Fabrication of frame shall be in the scope of steel fabrication work specified separately elsewhere. The frame shall be




properly grouted on the wall, or welded on the steel structure.

C Necessary drawing for frame shall be prepared by the Bidder and got approved before fabrication. The size of frame shall be maintained depending on number of PB stations to be installed at that location.

D After termination of cables, LCS covers shall be fixed properly along with gasket intact.

Testing/Pre-commissioning checks

E Measurement of insulation resistance of control wiring between wires and wire to earth, few points on terminal block in LCS with 500V megger keeping the cable disconnected. Measurement of resistance of internal discharge resistances. If desired IR value is observed, the cables shall be connected and PB station shall be energized.

F Functional checks of push buttons and contacts manually for any blockage, friction, etc.

1.07 INSTALLATION OF CABLE TRAYS

A Ladder type pre-fabricated readymade GI cable trays shall be installed in horizontal and vertical formation as per the approved layout drawings in various plant areas.

B The tray support fabricated out of MS angles of suitable size shall be installed at interval of about 2.0-2.5 mtr according to length of straight section along the entire route. The supports shall be fixed on all the sides of bends, tees, etc.

C The width of cable trays shall be selected as per number of cables running on it and it should cater for some future cables.

D The steel supports shall be fabricated and painted as per the steel fabrication job provided separately in the specification. The supports shall be either grouted on the walls or welded on MS inserts provided in walls. The supports shall be welded steel structures in case available along the route.

E In open areas, the trays shall be installed on support structure fabricated using appropriate type and size of MS structural steel sections. The tray supports shall be erected on the concrete pedestals to be constructed at distance of not more than every 2 m along the entire route. The structural steel for such vertical and horizontal supports shall be considered as part of structural steel to be supplied and erected.

F The cable trays shall be earthed by providing earthing continuity conductor with the plant earthing grid by 25 x 6mm GI strips along the entire route of cable trays. All necessary materials for fixing cable trays like nuts, bolts, washers, grouting, welding, inserts in the wall, etc. shall be included.

1.08 INSTALLATION OF JUNCTION BOXES

A The junction boxes of different sizes shall be fixed on wall in rooms. JBs in outdoor areas shall be installed on a suitable steel frame to be fabricated using MS angles/flats of appropriate size. Fabrication of frame shall be in the scope of steel fabrication work specified elsewhere in the document. The frame shall be properly grouted on the ground

B The drawing showing location of junction boxes, frame for installation, etc. shall be




prepared by the Bidder and got approved from the Client/the Consultant

C The size of frame shall be maintained depending on size and number of junction boxes to be installed at that particular location

D After termination of cables in the junction box, unused holes shall be sealed. The covers shall be fixed along with the gasket. All junction boxes shall be connected to earthing gird using 8 SWG GI wire. Inside wiring shall be properly dressed using self-locking PVC straps

E The junction boxes for street lighting and area lighting poles shall be installed on respective poles as shown in the typical drawing enclosed with this specification for information

F Wherever required, the junction box of 2-way, 3-way or 4-way, shall be installed in the lighting circuits for loop-in/loop out of wiring, circuit tap off, etc

G All the junction boxes shall be connected to earthing gird by providing connection at earthing stud provided on junction box using 8 SWG GI wire for area/street lighting boxes and 12 SWG GI wire for indoor lighting boxes.

1.09 INSTALLATION OF WELDING AND METAL CLAD RECEPTACLES

A Welding receptacles and industrial metal-clad receptacles along with plugs shall be installed outdoor/indoor either on steel structure or on wall at the location shown in the layout drawing. The method of mounting shall be same as provided for Local Pushbutton station above.

B The receptacle plug and housing shall be provided earthing from the earthing grid using GI wire of appropriate size as per the current rating of the receptacle.

C After termination of cables, receptacle covers shall be fixed along with gasket intact.

D Mounting height of welding/metal-clad receptacles in outdoor areas shall be minimum 600 mm from finished ground level and shall be between 600 - 1200mm from finished floor level in indoor areas.

E Welding receptacles shall be supplied power from major panel and other metal-clad receptacles shall be supplied power from the power distribution board (PDB).

Testing/ Pre commissioning checks

F For welding receptacle and metal clad receptacles, the insulation resistance at incomer cable terminal shall be measured keeping the switch in ON condition, but incoming cable disconnected, shall be measured between phases and phase to earth using 1000V hand operated megger. If desired IR value is observed, the cables shall be connected and power supply shall be made available. Supply parameters voltage shall be measured at incoming and outgoing points.

1.10 INSTALLATION OF LIGHTING FIXTURES - LUMINAIRES

A Each luminaire, junction box, etc. shall be marked with details such as circuit no., fixture no., panel no. as indicated on the layout drawings.




B Lighting fixtures shall be installed adopting the best engineering practices. Drawings showing typical mounting arrangements are provided in the Tender Document as far as possible. In case the drawing is not placed in the specification, the Bidder shall develop the drawing based on the specification and submit to Engineer-in-charge for approval.

C The indoor medium bay lighting fixtures shall be mounted on ceiling or structure as per availability of location. The bracket shall be fabricated from the steel under the item of steel fabrication.

D The street lighting fixtures of specified type shall be installed on steel tubular poles.

E lighting fixtures shall be installed on ceiling using ball and socket type arrangement to be supplied by the Bidder. Erection cost shall be inclusive of supply of GI dropper pipes, ball & socket joints, hardware, PVC flexible copper wire, PVC flexible conduit, consumable, etc.

F In case of unavoidable hindrance to approved lighting layout location for specific fixture due to pipeline or other mechanical equipment at particular site, the revised location shall be decided at site in consultation with Engineer-in-charge.

Installation of Street Lighting Poles

G Street lighting poles to be erected on road side shall be installed at a distance as shown in the respective layout drawing, to be designed and prepared by the Bidder, maintaining minimum 300 mm distance from the edge of walkway of the road.

H Excavation for pole foundation and all required material for grouting shall be in the scope of the Bidder. The pole shall be erected using proper tools-tackles and held vertical position, and grouting material shall not be poured till it is completely plumbed, aligned and leveled in every respect. After grouting, till complete curing, the pole shall be held by ropes in this position so that it does not tilt in any direction.

I Safe climbing equipment like tower ladder shall be used to install lighting fixture on pole after erection. Junction box shall be installed and wiring between junction box and fixture shall be carried out using 2.5 mm2, PVC insulated, multi-strand, flexible, copper wire.

J Each pole shall be earthed at two points by connecting to the plant earth grid.

K The painting of pole shall be carried out just before erection. Outer surface shall be cleaned using smooth cloth and dust depositions shall be removed from primed surface. Finally, 2 (two) coats of epoxy base silver aluminum paint shall be applied maintaining interval between subsequent coats as specified by the paint manufacturer. After erection, touch-up shall be carried out for peeled off paint. In case of Galvanized poles, zinc based paint shall be applied for touching before installation.

Installation of J-type lighting Poles

L J-type area lighting poles shall be generally erected on concrete pedestal to be constructed by the Bidder in accordance with the size of the base plate as detailed in the specification. 70W MH integral well glass type of lighting fixture shall be installed on these poles. 4 nos. of anchor bolts to hold the pole shall be firmly grouted on top of the pedestal.




M Wherever possible, the poles shall be installed on concrete wall top or by fixing with structure, hand rail structure available nearby equipment to be illuminated. The pole shall be erected completely plumbed, aligned and leveled in every respect.

N Each pole shall be earthed at one point by connecting to the plant earth grid.

O Final painting of pole shall be carried out after erection. Outer surface shall be cleaned using smooth cloth and dust depositions shall be removed from primed surface. Finally, 2 (two) coats of epoxy base silver aluminum paint shall be applied maintaining interval between subsequent coats as specified by the paint manufacturer.

Testing of Installation

P Before the installation is put into service, the following tests shall be completed as follows.

i) Insulation resistance

The insulation resistance shall be measured by applying between earth and whole system of conductors or any section thereof. 500V DC for single phase system be means of a meager. The insulation resistance shall not be less than one mega ohm.

ii) Testing earth continuity path

The earthing conductors shall be tested for electrical continuity. The electrical resistance of the same along with earthing lead from connection with earth electrode to any point, in any point in earth continuity conductor in the complete installation shall be less than one ohm.

iii) Testing of polarity of single pole switch

The test shall be made to verify that all single pole switches have been fitted between the phase conductors and light/fan/socket outlet.

Pre-commissioning checks

Q Insulation resistance of each circuit without the lamps being in place shall be measured using 500V hand operated Megger, which shall not be less than 5 Mohm. The insulation resistance between phases and phase to earth shall be measured for all the circuits.

R After observing desired IR value, the circuits shall be energized one by one and energisation of lighting fixtures as per circuit diagram shall be verified. Necessary modification in fixture connection from one circuit to another shall be carried out in the event of incorrect circuit connection.

S Tap setting of igniter shall be adjusted in case of HPSV fixtures.

1.11 STRUCTURAL STEEL FABRICATION AND ERECTION

Fabrication

A Fabrication of steel structural material shall be carried out as per respective drawings, to be prepared by the successful Bidder, in conformity with the best modern practices and with due regard to speed with economy in fabrication and erection. The fabrication work shall generally be conforming to IS:800.




B All members shall be so fabricated as to assemble accurately on site and erect them in correct positions. Wherever possible, the components shall be assembled at yard area allocated to the Bidder and defect, observed if any, shall be rectified before erection. The fabrication work shall be free from any kink, twist, buckle, bend, open joints, etc. Defective members shall be rejected on the spot.

C Structural steel fabrication work shall be carried out using best engineering practices adopting gas cutting and welding. No welding electrode remaining in open for more than 72 hours shall be used for welding.

D Welding of joints shall be so arranged that the resulting tensile and compressive stresses produced by each part of weld shall tend to balance each other.

Erection of Steel Structure

E The fabricated steel members shall be erected in position, to dimensions and levels or grouted as shown in the drawings to be provided later on to the successful Bidder. The members, frames and supports shall not be welded or bolted in final position until they are completely plumbed, aligned and leveled in every respect.

Painting of Steel Structure

F The painting of fabricated structural steel shall be carried out before erection to the extent feasible, except on surface where welding to be carried out. If painting shall not be carried out before erection, then the erected structure shall be painted before installation of equipment on it. Surfaces not readily accessible or totally inaccessible after erection of fabricated steel must be applied primer and paint prior to erection.

G Before painting, the surfaces shall be thoroughly prepared by making free from oil, grease, rust, old coating (if any), etc. Surface defects such as cracks, lamination, burrs, pitting, sharp edge corners, welding slag, etc. shall be removed by suitable methods. The surfaces shall be carefully dried with clean cloths to prevent dissolved impurities from spreading over the entire surface area.

H Further surface preparation shall be carried out either by sand blasting or by using wire brush or chemical as approved by the Engineer-in-charge.

I After surface preparation, 2 (two) coats of synthetic enamel primer shall be applied maintaining interval between subsequent coats as specified by the paint manufacturer.

J After complete drying of primer, 2 (two) coats of synthetic enamel paint (shade to be specified at site) shall be applied. The paint shall be applied maintaining uniform thickness. Surfaces affected by gas cutting and/or welding, lifting and shifting shall also be suitably touched up after erection.

1.12 MINOR CIVIL WORKS

A The Bidder shall carry out the minor civil works as provided hereunder by arranging required materials, tools-tackles and manpower as required.

Making of openings in walls, pockets on floors, etc. Grouting of steel supports, fabricated frames, PB station supports, anchor bolts,

etc.




Making brick chambers for earthing stations. Chipping on floors for embedding frames, etc. Sealing of openings, holes, etc. Constructing foundation to erect street lighting poles and pedestals to erect J-type

poles. Excavation and backfilling for laying of cables in ground. Making good the affected portion during the course of work.

B The Bidder shall carry out this work as per the instructions of the Client’s Engineer-in-charge at site. Cutting of narrow chases in concrete, wherever involved, shall be done by the Bidder including grouting and finishing.

1.13 INSTALLATION OF SAFETY ITEMS

A Sand Buckets

The stand for stand bucket shall be suitably grouted on ground at location nearer to the proposed transformer yard which can be easily accessed.

B Shock Treatment Charts/First Aid Box

These items shall be hanged on the wall of Electrical Control Room at the place where it can be easily read and approached.

C Portable Fire Extinguishers

The portable fire extinguishers shall be installed on the outside wall of Electrical Control Room and besides transformer yard at the point which can be easily approached in case of emergency. The fire extinguishers shall also be installed on the outside wall of the Pump House. Nos. to be installed at each location shall be decided in consultation with the Engineer-in-charge.





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF CCTV SYSTEM


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITY ASSURANCE 3 1.04 INSPECTION AND TESTING 3 1.05 SUBMITTALS 4 1.06 TRANSPORT, DELIVERY AND STORAGE 4 1.07 SPARES AND AMC 4

PART 2 TECHNICAL REQUIREMENTS 5 PART 3 INSTALLATION 11

RECORD OF REVISIONS







1.01 SCOPE OF WORK

A This specification and the scope of work are intended to cover engineering, design, drawing approval, manufacture, assembly, testing at manufacturer’s works, packing and forwarding, delivery and transportation F.O.R. site of CCTV System complete in all respect with all equipment, fittings and accessories for efficient and trouble-free operation.

B The system shall consist of separate components to comprise a system which is as follows: 1. High Definition Color Cameras 2. Digital Video Recorder 3. Viewing Monitor 4. Software



A Original Equipment Manufacturer standards

B The design, manufacture and performance of equipment shall comply with CE requirements, UL listed standard 2044 & FCC class B.




30. CFO (Chief Fire Officer) Requirements


D It is not intent to mention all the relevant standards applicable to the proposed work and equipment. Any relevant British Standard, irrespective of the fact whether it is mentioned herewith or not, shall be made applicable as per requirement of the work and equipment.


F A broad statement that “any equipment being supplied is generally in accordance with this Specification or any part of it” shall not be acceptable. Any exceptions, deviations or omissions from this Specification proposed by the Bidder shall be itemized from this quotation and subject to approval by the Consultant/Client before commencement of manufacture. In absence of specific deviation, it will be deemed to be considered as




acceptance to this specification.



This Specification





B The contractor shall have successfully installed similar public address system, evacuation voice and visual signaling control components on a previous project of comparable size and complexity. The owner reserves the right to reject any control components for which evidence of a successful prior installation performed by the contractor cannot be provided.

C The contractor shall have in-house engineering and project management capability consistent with the requirements of this project. Qualified and approved representatives of the system manufacturer shall perform the detailed engineering design of central and remote control equipment. Qualified and approved representatives of the system manufacturer shall produce all panel and equipment drawings and submittals, operating manuals. The contractor is responsible for retaining qualified and approved representative(s) of those system manufacturers specified for detailed system design and documentation, coordination of system installation requirements, and final system testing and commissioning in accordance with these specifications.


A All intelligent CCTV system devices shall be tested for user defined requirements. All wiring shall be tested for continuity, shorts, and grounds before the system is activated. All test equipment, the installing contractor shall make instruments, tools and labor required to conduct the tests available.

B The system including all its sequence of operations shall be demonstrated to the Owner, his representative, and the local fire inspector. In the event the system does not operate properly, the test shall be terminated. Corrections shall be made and the testing procedure shall be repeated until it is acceptable to the Owner, his representatives and the fire inspector.




C At the final test and inspection, a factory-trained representative of the system manufacturer shall demonstrate that the system functions properly in accordance with these specifications. The representative shall provide technical supervision, and participate during all of the testing for the system.

D A letter from the Contractor certifying that the system is installed entirely in accordance with the system manufacturer's recommendations and that the system is in proper working order.

1.05 SUBMITTALS

A ALONGWITH OFFER

6. Submit list of spare parts required for safe operation of equipment for Two years.

B DURING APPROVAL


16. Layout drawings indicating location of camera with type/DVR.

17. Wiring diagram



11. Final installation drawings

12. Test reports

13. O & M manuals


A The prices shall be F.O.R. site basis including packing & forwarding charges. The quoted price must include all the costs for necessary mode of transportation up to the site store. All incidental expenses during transportation shall be part of quoted prices including transit insurance. The charges for loading and unloading of equipments at site should form part of offer.

1.07 SPARES & AMC (Annual Maintenance Contract)

A The bidder shall quote for minimum spares required for two years safe operation of system along with the offer separately.

The bidder shall quote for maintenance contract for 1st year & 2nd year. The maintenance contract shall form part of offer and considered in comparison.








24. Ambient : Dry


1 Maximum Temperature 45deg C

2 Design Max. Ambient Temperature (Dry Bulb) 50deg C

3 Minimum Temperature (Winter Dry Bulb) 08deg C








A Non-hazardous safe as per Hazardous Area Classification.



2 Frequency 50 Hz




± 6 %


350 MVA






2.05 CAMERAS

A DOME CAMERA - As per BOQ

B Pan, Tilt ,Zoom Camera - As per BOQ

C OUTDOOR VARIFOCAL LENSE CAMERA (DAY/NIGHT) - As per BOQ

2.06 DIGITAL VIDEO RECORDER

A The digital video recorder (DVR) shall be a recording system capable of storing and playing back digitized images from 1 to 16 camera inputs at 25 images per second (PAL) per camera simultaneously. Recording shall be to an external hard disk drive (HDD) system. The unit shall have pentaplex operation (Record, Playback and Back-up, Network recording, and Network playback at the same time) and use Embedded Operating System such as Windows® XP / LINUX operating system. Encryption of each image shall be provided to prevent and/or detect manipulation of recorded images using separate authentication software. The unit shall include internal video motion detection with multiple sensitivity settings to allow fast visual verification of motion-related events during playback of the recorded images.

B The system shall allow operators to view any camera recorded through the use of an external view station PC. The maximum allowable time for displaying a recorded video stream from any recorded camera shall not exceed 1 second from the time an operator initiates the desired function. The system shall provide a complete audit trail database, with six-month history, tracking who did what, where, and when in the recorder system.

C The system shall maintain all recorded video for a minimum of 30 days. All recorded video shall be stored on hard drives to allow immediate access to viewing. The System shall be capable to transfer the recorder files to any system server as per designated path automatically once the DVR HDD is full. The system shall be capable to retrieve the data on any PC on the network. The HDD system shall provide hot-swappable capabilities and hot swappable power supplies. The use of external tape storage devices shall not be permitted. DVR should support additional HDD if required in future & it should hv spare space to install the same.

D The digital recording system shall operate over a local area network (LAN)/wide area network (WAN) to allow unlimited operators access through the facility. The unit shall include a TCP/IP address for connection to the network. The System should be Multilevel password protected.

E Joystick keyboard interface to DVR is required. DVR should support minimum 3 third party Dome.

F The digital recorder shall meet or exceed the following design and performance specifications:




G VIDEO SYSTEM

1. Recording Modes: Continuous, motion detection, scheduled, alarm activation, and event-based.

2. Event Marking: Motion detection, scheduled recording modes, user events, and alarm inputs.

3. Video Storage: HDD arrays with RAID 5 or 5+1 (hot spare drive) archiving capability. 4. Hard Drive Size: Multiple HDDs in a variation of sizes from 1000 GB to 2,000 GB hard

drives per unit. 5. Recording Speed : NTSC: 30 images per second per camera, PAL: 25 images per

second per camera 6. Signal Format: NTSC or PAL, software configurable 7. Frame Rate PAL: each channel: 1~25 frames/s, adjustable, NTSC: each channel:

1~30 frames/s, Adjustable 8. Video Formats: Inputs can be from fixed color cameras, B-W cameras, IP Camera,

PTZ cameras, infrared cameras, Xraycameras, low light cameras, or any other cameras that provides a composite NTSC/PAL 1 Vp-p video signal.

9. Frame Rate PAL: each channel: 1~25 frames/s, adjustable NTSC: each channel: 1~30 frames/s, deadjustable

10. Recorded Video Quality: At least 40dB PSNR quality compared with the original video and support either NTSC- or PAL- formatted video.

11. Resolution : NTSC: CIF: 352 x 240 pixels at 15 or 30 ips, PAL CIF: 352 x 288 pixels at 12.5 or 25 ips

H NETWORK FUNCTIONS

1. Network Protocol: Full remote control via TCP/IP and addressing through an RJ-45 LAN port allowing for the connection of a computer and connection to a LAN or WAN network.

2. Network Type Server to Server

3. Network B/W trotting From 54 kps to 10 MBps

4. Network Interface 10/100/1000 Base T

5. Network Control Allow users to set parameters by use of software or browser at the client-side of the network; real-time browsing of video and audio signals; check of video server status; able to given an alarm via network; able to store the compressed code stream via network; network PTZ control.

6. Short Message Service Able to send such information as alarm input,mobile sense alarm, video loss alarm, user logging in information, system start-up and close-down, as per the settings, onto the designated mobile phone, thus to realize wireless monitoring.

7. Centralized Monitoring Able to realize centralized monitoring and management of multiple HD Recording units, including: network browsing in a centralized manner, network configuration in a centralized manner, adjustment of network video parameters, centralized management of alarm information network, remote downloading and playback.




I SYSTEM FUNCTIONS

1. Multiple Tasks: Scheduled recordings and event recordings to be combined in normal operation.

2. Digitizing Procedure: Capture, digitize, and record each camera’s video individually on a dedicated VPU (video processing unit)

3. Motion Detection: Built-in digital video motion detection for every camera in the system with the operator able to set areas in the picture for motion detection.

4. Motion Detection Search: Can detect movement of a specific object within the recorded video and can scan a 24-hour recording in approximately 15 minutes for the detection of the movement of a specific object

5. Log Management Detailed log information, recording system, operation, alarm, network information, so as to keep evidence for future examination.

6. Pre/Post Alarm: Provide pre-alarm and post-alarm capabilities for each video motion detection event, adjustable.

7. System Stability should possess software/hardware watchdog, which prevents breakdown. Automatic restart in case of exceptional power cut, thus realize Norman Watching.

J STORAGE FUNCTIONS

1. HD capability Able to support ten IDE HDs, supports large HD of more than 200GB, supports USB disk array expansion

2. HD Check The bad HD identify, jumps and reports automatically, and provide the function that check HD manually.

3. Cyclic Recording Cyclic record on the HD file that can be covered

4. USB / Inbuilt DVD R/W drive

K SOFTWARE

1. Video Display: Video display configurations shall include, but not be limited to, the following: Display cameras from multiple DVRs on one single screen. Up to 36 simultaneous views from different DVRS on same LAN on single screen is required.

2. Control: Control of all features with a PS/2 mouse

3. Full-Screen View: Capable of viewing any video full screen

4. Viewing: View both live and playback video on the same standard digital network II. Query Features: Search for a specific video by camera name, date, and event type.

5. Recorded Video Instantaneous access directly from the hard Access drive of the storage unit to predefined video previously marked by the user or to motion detection video.

6. Password a multi levels of security-protected passwords.

7. Fine Tuning Control of brightness, contrast, and color for Adjustments all cameras in the system.

8. Labeling: Video streaming that shall include displaying the following on the video in




playback mode: a user-defined camera name, and the date and time the video was recorded.

9. Playback Speed Playback mode at 30 times the normal viewing Speed and allow the operator to view in 15 different speeds down to a frame-by-frame view.

10. Exporting Video Export to a built-in 3.5-inch floppy or to a Files USB / built-in CD-RW for saving the video files and allowing viewing the files on any standard PC. Included export Viewer for time and date stamp display of recorded video. Must play on a standard media player without the need for special hardware or software.

11. Playback Jogging Playback in normal mode and the ability to jump in one or ten second intervals forward and backward.

12. Exported Formats: Still :JPEG or bitmap, Clip : MPEG 13. Digital Zoom: Capable of digitally zooming video images while in the playback mode 14. Audit Report: Six-month history that tracks who, what, where, and when the recorder

has been accessed, with history printable in HTML, PDF, or Txt formats.

2.07 CABLING

A The Cabling shall be Coaxial (RG6) and 4 Core Twisted Pair type OR CAT-6 (ethernet TCP/IP) as specified in Bill Of Quantities.




3.0 PART – 3 (INSTALLATION)

3.01 GENERAL

A Installation shall be as shown on the drawings, and as recommended by the major equipment manufacturer.

B All cables, junction boxes, cables supports and hangers shall be concealed in finished areas and may be exposed in unfinished areas.

3.02 CABLING

A Prior to laying and fixing of conduits, the contractor shall carefully examine the drawings indicating the layout, satisfy himself about the sufficiency of number and sizes of conduits, sizes and location of conduits and other relevant details. Any discrepancy found in the drawings shall be brought to the notice of Consultant / Engineer in-charge. Any modifications suggested by the Contractor shall be got approved by the Consultant / Engineer in-charge before the actual laying of conduits is commenced.

B All cables from various zones to be terminated on termination box & from there individual cables will connect to the central system.

3.03 TESTING

Sr No Description Visual

Test Readin

gs Documentation

1 All cables are tested for continuity, insulation, resistance etc. √

2 System installation proper as per drawing √

3

Carry out visual checks on all cameras, cables, camera housing etc.to ensure they are clean and free from any mechanical damage √

4 Check for proper termination & feruling √ 5 Check input A/C supply voltage √

6 Check Input supply DC voltage at every camera . √

7 Check proper connection of video cable to ensure that there is no video loss . √ √

8 Check all camera’s signal on monitor. Also check for clarity , sharpness of the picture. √

9 Check PTZ controls of PTZ camera. √

10 Check recording, playback & other various features randomly. √

11 Check recording FRAME RATE √

12 Check CCTV integration with Access Control system √

13 Check all software server & client has been installed correctly & running without any √ √




bug/error.

3.04 COMMISSIONING

A At final commissioning of each system, the Contractor shall confirm that:

1. All devices, control panels are tested and operate correctly .

2. Commissioning shall be fully documented and the documentation submitted to the Engineer.

3. The Contractor shall demonstrate each camera and main panel to the satisfaction of the Engineer by conducting a series of witnessed acceptance tests as directed by the Engineer. This shall take place after the above final commissioning and following receipt of the commissioning documentation by the Engineer.

4. Both the installation and the commissioning activities shall be undertaken as a single continuous operation.

5. The contractor shall present an Acceptance Certificate for signature by the customer.

3.05 DOCUMENTS

A The contractor, upon completion of the commissioning activity, shall hand over the system to the customer. At the time of hand over, the contractor shall provide the customer with the following documentation:

1. Copy of detailed report

2. Component and equipment list

3. Product description sheets

4. System design drawing(s)

6. System schematic diagram(s)

7. System operating manuals & warranty documents

3.06 TRAINING

A The contractor shall provide the customer with details of the training required by personnel to operate and maintain the CCTV System during routine operation and normal troubleshooting.





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING OF FA SYSTEM


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITY ASSURANCE 4 1.04 INSPECTION AND TESTING 4 1.05 SUBMITTALS 4 1.06 TRANSPORT, DELIVERY AND STORAGE 5 1.07 SPARES AND AMC 5


RECORD OF REVISIONS







1.01 SCOPE OF WORK

A This specification and the scope of work are intended to cover engineering, design, drawing approval, manufacture, assembly, testing at manufacturer’s works, packing and forwarding, delivery and transportation F.O.R. site of Fire Alarm System complete in all respect with all equipment, fittings and accessories for efficient and trouble-free operation.

B An intelligent reporting, microprocessor controlled fire detection system shall be installed in accordance with the specifications and drawings. The basic system comprises of Addressable Intelligent fire alarm panel, smoke sensors, smoke laser sensors, smoke optical sensors, heat sensors, audio visual indicators, isolator modules, monitor control and relay modules connected by interconnecting flexible copper cables in conduits.



A National Fire Protection Association (NFPA) - USA:

NFPA 13 Sprinkler Systems

NFPA 16 Foam/Water Deluge and Spray Systems

NFPA 17 Dry Chemical Extinguishing Systems

NFPA 17A Wet Che8mical Extinguishing Systems

NFPA 2001 Clean Agent Extinguishing Systems

NFPA 72 National Fire Alarm Code

NFPA 76 Telecommunication Facilities

NFPA 318 Clean Room Applications

NFPA 101 Life Safety Code

NFPA 90A Air conditioning & ventilation system

Underwriters Laboratories Inc. (UL) - USA:

UL 268 Smoke Detectors for Fire Protective Signaling Systems

UL 864 Control Units for Fire Protective Signaling Systems 9th Edition

UL 268A Smoke Detectors for Duct Applications

UL 521 Heat Detectors for Fire Protective Signaling Systems

UL 464 Audible Signaling Appliances




UL 38 Manually Actuated Signaling Boxes

UL 346 Water flow Indicators for Fire Protective Signaling Systems

UL 1971 Visual Notification Appliances

UL 228 Door Holders

UL 1481 Power Supply for fire protective signaling system.

UL 1711 Amplifiers for Fire Protective Signaling Systems.

UL 1635 Digital Alarm Communicator System Units

Factory Mutual (FM) Approval

UL 9th Schedule Certification

International Standards Organization (ISO)

Electromagnetic Compatibility Requirements

European Standards – EN54

B In addition to above mentioned standards, the bidder shall follow the guidelines as specified in,

32. Local regulations


34. CFO (Chief Fire Officer) Requirements


C It is not intent to mention all the relevant standards applicable to the proposed work and equipment. Any relevant British Standard, irrespective of the fact whether it is mentioned herewith or not, shall be made applicable as per requirement of the work and equipment.

D Compliance by the Bidder with the provisions of this specification shall not relieve the Bidder of the responsibility of furnishing equipment and components of proper design, electrically and mechanically suited to meet the operating requirements under the specified service conditions and be suitable for the purpose of which they are intended.

E A broad statement that “any equipment being supplied is generally in accordance with this Specification or any part of it” shall not be acceptable. Any exceptions, deviations or omissions from this Specification proposed by the Bidder shall be itemized from this quotation and subject to approval by the Consultant/Client before commencement of manufacture. In absence of specific deviation, it will be deemed to be considered as acceptance to this specification.

F The Bidder should seek clarification on any aspect of the Specification, where it is believed that obscurity or ambiguity exists in the meaning or intent stated. Where a conflict occurs between the Bidder’s manufacturing standard, this Specification and the Purchase Order/Data Sheets, the following shall apply in order of preference:





This Specification





B The contractor shall have successfully installed similar fire detection system on a previous project of comparable size and complexity. The owner reserves the right to reject any control components for which evidence of a successful prior installation performed by the contractor cannot be provided.

C The contractor shall have in-house engineering and project management capability consistent with the requirements of this project. Qualified and approved representatives of the system manufacturer shall perform the detailed engineering design of central and remote control equipment. Qualified and approved representatives of the system manufacturer shall produce all panel and equipment drawings and submittals, operating manuals. The contractor is responsible for retaining qualified and approved representative(s) of those system manufacturers specified for detailed system design and documentation, coordination of system installation requirements, and final system testing and commissioning in accordance with these specifications.


A All intelligent analog addressable devices shall be tested for current address, sensitivity, and user defined message. All wiring shall be tested for continuity, shorts, and grounds before the system is activated. All test equipment, the installing contractor, shall make instruments, tools and labor required to conduct the tests available.

B The system including all its sequence of operations shall be demonstrated to the Owner, his representative, and the local fire inspector. In the event the system does not operate properly, the test shall be terminated. Corrections shall be made and the testing procedure shall be repeated until it is acceptable to the Owner, his representatives and the fire inspector.

C At the final test and inspection, a factory-trained representative of the system manufacturer shall demonstrate that the system functions properly in accordance with these specifications. The representative shall provide technical supervision, and participate during all of the testing for the system.

D A letter from the Contractor certifying that the system is installed entirely in accordance with the system manufacturer's recommendations and that the system is in proper working order.




1.05 SUBMITTALS

A ALONGWITH OFFER

Submit list of spare parts required for safe operation of equipment for Two years.

B DURING APPROVAL


18. Layout drawings indicating location of detectors/MCP/Hooter/Strobe/FACP

19. Wiring diagram



14. Final installation drawings

15. Panel Settings

16. Test reports

17. O & M manuals



1.07 SPARES & AMC (Annual Maintenance Contract)

A The bidder shall quote for minimum spares required for two years safe operation of system along with the offer separately.

The bidder shall quote for maintenance contract for 1st year & 2nd year. The maintenance contract shall form part of offer and considered in comparision.






A 25. Location : Ahmedabad, Gujarat 26. Site elevation : 50 Mtr above mean sea level 27. Thermal Resistivity of Soil : 150 deg C, cm/watt












A 7. Non-hazardous safe as per Hazardous Area Classification



2 Frequency 50 Hz




± 6 %


1000 MVA






2.05 GENERAL

A The control panel(s) shall be a multi-processor based networked system designed specifically for fire, one-way and two-way emergency audio communications, smoke control, extinguishing agent releasing system if necessitated, with integration modules for BMS or any third party control/annunciation. The control panel shall be with NFPA -72 and UL/FM listed/EN-54/VDS/LPCB approval. The control panel shall include all required hardware, software and site specific system programming to provide a complete and operational system. The control panel(s) shall be designed such that interactions between any applications can be configured, and modified . The control panel(s) operational priority shall assure that life safety takes precedence among the activities coordinated by the control panel.

B Each designated zone shall transmit separate and different alarm, supervisory and trouble signals to the Fire Command Center (FCC) and designated personnel in other buildings at the site via a multiplex communication network.

C The main panel is to be located as shown in drawing which shall of the multiple loops to accommodate all the sensors and devices with the spare loop capacity of 25%. All the sensors and devices are connected to main panel and all output circuits are activated from the same. The main panel is connected peer to peer to all building panels which is located as shown in drawing.

D The control panel shall include the following capacities:

1. Support up to minimum 125 devices

2. Support up to minimum 2500 analog/addressable points.

3. Support network connections up to minimum 32 or other control panels and annunciator.

4. Support multiple digital dialers and modems

5. Support multiple communication ports and protocols

6. Support up to a minimum of 10,000 chronological events.

E The network of control panels shall include the following features:

1. Ability to download all network applications and firmware from the configuration computer from the configuration computer from a single location on the system.

2. The system shall be capable to be accesed over the web with interface for monitoring of the entire system over intratnet/internet.

3. Provide electronic addressing of analog/addressable devices.

4. The system shall support a GUI display monitor for graphical representation of all layouts & devices locations.

5. Provide an operator interface control/display that shall annunciate, command and control system functions.




6. Provide an internal audible signal with different programmable patters to distinguish between alarm, supervisory, trouble and monitor conditions.

7. Provide a discreet system control switch provided for reset, alarm silence, panel silence, drill switch, previous message switch, next message switch and details switch.

8. Provide system reports that provide detailed description of the status of system parameters for corrective action or for preventative maintenance programs. Reports shall be displayed by the operator interface or capable of being printed on a printer.

9. Provide an authorized operator with the ability to operate or modify system functions like system time, date, passwords, holiday dates, restart the system and clear control panel event history file.

10. Provide an authorized operator to perform test functions within the installed system.

11. The control panel shall contain a standby power supply i.e. maintenance free battery that automatically supplies electrical energy (24 Hour backup) to the system upon primary power supply failure. The system shall include a charging circuit to automatically maintain the electrical charge of the battery.

2.06 PERFORMANCE REQUIREMENTS

A Alarm, trouble and supervisory signals from all intelligent reporting devices shall be encoded on NFPA Style 6 (Class A) Signaling Line Circuits (SLC).

B Initiation Device Circuits (IDC) shall be wired Class A (NFPA Style D) as part of an addressable device connected by the SLC Circuit.

C Notification Appliance Circuits (NAC) shall be wired Class A (NFPA Style Z) as part of an addressable device connected by the SLC Circuit.

D On Style 6 or 7 (Class A) configurations a single ground fault or open circuit on the system Signaling Line Circuit shall not cause system malfunction, loss of operating power or the ability to report an alarm.

E Alarm signals arriving at the FACP shall not be lost following a primary power failure (or outage) until the alarm signal is processed and recorded.

SEQUENCE OF OPERATION

F Upon alarm activation of any area smoke detector, heat detector, manual pull station, sprinkler water flow, the following functions shall automatically occur:

G The internal audible device shall sound at the control panel or command center.

H Display the alarm event on the graphical workstation.The LCD Display shall indicate all applicable information associated with the alarm condition including: zone, device type, device location and time/date. All system activity/events shall be documented on the system printer. Any remote or local annunciator LCD/LED's associated with the alarm zone




shall be illuminated.

I The following audio messages and actions shall occur simultaneously:

J An evacuation message shall be sounded on fire floors (zones) immediately above and below (adjacent to) the fire floor (zone), on the floor in fire condition. It is the intent of this message to advise occupants hearing this message that they are near danger and should leave the building via the stairs (nearest exit) immediately.

K Activate visual strobes on the fire floors (zones) immediately above and below (adjacent to) the fire floor (zone). The visual strobe shall continue to flash until the system has been reset. The visual strobe shall not stop operating when the "Alarm Silence" is pressed. An alert message shall be sounded on the remainder of building. It is the intent of this message to advise occupants to prepare for evacuation if necessary. An instructional message shall be sounded in the stairwells instructing occupants to move carefully and quickly down the stairs to exit the building and to exit to a safe floor if you encounter smoke in the stairwell.

L An instructional message shall be sounded in the elevator cabs. It is the intent of this message to advise elevator occupants that an emergency exists, the elevator has been directed to the ground floor, and that occupants should quickly exit the building. An instructional message shall be sounded in the lobby. It is the intent of this message to advise lobby occupants to leave the lobby and clear the area for arriving firefighters. An instructional message shall be sounded in the concourses connected to the building's lobby. It is the intent of this message to prevent new entries into the lobby by advising occupants not to attempt to enter the lobby of the affected building.

M Provide selective paging to each individual floor (zone). In addition to the message/channels detailed above, a dedicated page channel shall be capable of simultaneously providing live voice instructions without interrupting any of the messages listed above shall be provided.

Transmit signal to the building automation system.

Transmit signal to the central station with point identification.

Activate automatic smoke control sequences.

All automatic events programmed to the alarm point shall be executed and the associated outputs activated.

All stairwell/exit doors shall unlock throughout the building.

All self-closing fire/smoke doors held open shall be released.

Direct the closed circuit TV cameras to the alarm event and start video recording

N Duct Smoke Activation – Supervisory

The supervisory activation of any duct smoke detector, the following functions shall automatically occur:

The internal audible device shall sound at the control panel or command center.




Display the event on the graphical workstation and display a pictorial image.

The LCD display shall indicate all applicable information associated with the supervisory condition including; zone, device type, device location and time/date. All system activity/events shall be documented on the system printer.

Any remote or local annunciator LED's associated with the alarm zone shall be illuminated. Transmit signals to remote annunciators located in building security desk, the engineer's office and the building management office.

Transmit signal to the building automation system. Transmit signal to the central station with point identification. Shutdown the local air-handling unit.

O Supervisory Operation :

Upon supervisory activation of any sprinkler valve supervisory switch, fire pump off-normal, clean agent fire suppression system trouble, the following functions shall automatically occur:



The LCD display shall indicate all applicable information associated with the supervisory condition including; zone, device type, device location and time/date. All system activity/events shall be documented on the system printer.

Any remote or local annunciator LCD/LED's associated with the supervisory zone shall be illuminated. Transmit signal to the central station PC with point identification.

P Trouble Operation

Upon activation of a trouble condition or signal from any device on the system, the following functions shall automatically occur:



The LCD keypad display shall indicate all applicable information associated with the trouble condition including; zone, device type, device location and time/date. All system activity/events shall be documented on the system printer.

Any remote or local annunciator LCD/LED's associated with the trouble zone shall be illuminated. Transmit signal to the central station PC with point identification.

Q Monitor Activation

Upon activation of any device connected to a monitor circuit, the following functions shall automatically occur:

The internal audible device shall sound at the control panel or command center





The LCD display shall indicate all applicable information associated with the status condition including; zone, device type, device location and time/date.

All system activity/events shall be documented on the system printer

Any remote or local annunciator LCD/LED's associated with the status zone shall be illuminated.

2.07 OPERATOR’S INTERFACE

A The system shall be designed and equipped to receive, monitor, and annunciate signals from devices and circuits installed throughout the building. Standard LED annunciator may be combined in common enclosures provided that the groups of LED's comprising each of the required annunciator are separated from one another (Detection, Supervisory, Status, and Security) and clearly labeled. A minimum 320-character LCD display shall be part of the main control panel for easy alarm reading and understanding. Receipt of alarm, trouble, and supervisory signals shall activate integral audible devices at the control panel(s) and at each remote annunciation device. The integral audible devices shall produce a sound output upon activation of not less than 85 dBA at 10 feet

B The annunciator shall contain the following system status indicators:

LCD character Backlit Liquid Crystal Display

System Normal Indicator

System Common Alarm Indicator

System Common Trouble Indicator

System Common Supervisory Indicator

System Ground Fault Indicator

System Common Security Indicator

System Disabled Point(s) Indicator

System Reset Switch with Indicator

System Alarm Silence Switch with Indicator

System Trouble Silence Switch with Indicator

System Message Queue Scroll Switches.

Digit Keypad to Enable/Disable System and Functions

2.08 WIRING

A It shall be the responsibility of the Contractor to determine the number of loops and other circuits required for the system. The drawings available from Consultants shall form the basis of design, final designs shall be equipment specific to the make finalized.

B Where the system is distributed, the network linking the control panels shall be capable of being extended in the future to link to further compatible control panels. The capacity of the network shall be expandable by 25%.




C The Cables used shall be annealed bare copper conductor twisted, PVC insulated, PVCFRLS sheathed Control Cables as per IS 694.These shall be laid in concealed/surface Medium PVC Conduits, the cable can be armoured as an alternate, if specified in BOQ.

D Each detection loop shall originate and terminate at the control and indicating equipment.

E The number of loops required for the system shall be determined on the basis of device capacity, total loop length and the area of coverage of each loop. The maximum area coverage per loop shall not exceed 10,000m².

F Each loop shall incorporate a minimum of 25% spare device capacity for possible future use. The spare capacity shall relate to manual call points, detectors, sounder and beacons (where relevant) and loop interfaces in any combination.

G Loop wiring shall tolerate a single open-circuit fault without affecting any device on the same loop. Loop wiring shall also tolerate multiple open-circuit or short-circuit faults in one area, without affecting the devices in any other area or on any other loop or circuit.

H Removal of a device from a loop shall not cause any remaining devices in the system to become inoperative.

I It shall be possible to disable detectors on the system. The controlling software shall permit individual detector disablement and detector group disablement. As a minimum, a group shall correspond with the detectors in a particular zone. Group detector disablement shall not render manual call points in the same area inoperative.

J Short-circuit isolators shall be provided at the beginning and end of each loop. Also, a single short circuit or open-circuit fault on an automatic fire detector circuit shall neither disable protection within an area of more than 2,000m², nor on more than one floor of the building plus a maximum of five devices (automatic detection, manual call points, sounders or a combination of these) on the floor immediately above and five devices on the floor immediately below that floor.

K Where the system is distributed, the network between control panels shall be configured as a loop and shall be capable of tolerating a single open- or short-circuit without loss of communication between panels. It shall be a ‘peer to peer’ network that is not wholly dependent on a single, centralized processor or panel. In the event of failure of the network, each control panel on the network shall be capable of operating in a ‘stand-alone’ mode and thus generating fire alarm warnings in response to activation of a device connected to it.

2.09 FALSE ALARM

A Great care shall be taken, at the design stage, to minimize the likelihood of false alarms occurring in the new or modified system.

B Devices shall be of types appropriate to the local environment. For example, optical smoke detectors shall not be installed in areas where there is likely to be steam or dust present. Also, manual call points shall be fitted with transparent hinged covers where there is the possibility of accidental operation, e.g. in kitchens or service areas.

2.10 AUDIO ALARM




A The system shall be capable of delivering multi-channel audio messages simultaneously over copper and/or fiber media. All audio messages and live pages shall originate at the one-way audio control unit. The one-way audio control unit shall store pre-recorded audio messages digitally. These messages shall be automatically directed to various areas in a facility under program control. The system shall support remote cabinets with zoned amplifiers to receive, amplify and send messages through speakers over supervised circuits.

B The details of audio alarms shall be as described in “Performance requirements”.

C The system shall be capable of delivering multiple audio messages simultaneously over copper and / or fiber media. All audio messages and live pages shall originate at the one-way emergency audio control unit. The one-way emergency audio control unit shall store pre-recorded audio messages digitally. These messages shall automatically direct to various areas in a facility under program control. The system shall support remote panels with zoned amplifiers to receive, amplify and distribute messages through speakers over supervised circuits. The two-way voice communications control unit shall provide two-way communications between remotely located phones and the command center. The control unit shall provide the ability to individually select and display each two-way voice communication circuit support up to five (5) remote telephones in simultaneous two-way voice communications.

2.11 POWER SUPPLY

A All standby batteries shall be continuously monitored by the power supply. Low battery and disconnection of battery power supply conditions shall immediately annunciated as battery trouble and identify the specific power supply affected. All system power supplies shall be capable of recharging their associated batteries, from a fully discharged condition to a capacity sufficient to allow the system to perform consistent with the requirements of this section, in 48 hours maximum.

2.12 REPORTS

A The system shall provide the operator with system reports that give detailed description of the status of system parameters for corrective action, or for preventative maintenance programs. The system shall provide these reports via the main LCD, and shall be capable of being printed on any system printer.

B The system shall provide a report that gives a sensitivity listing of all detectors that have less than 75% environmental compensation remaining. The system shall provide a report that provides a sensitivity (% Obscuration per foot) listing of any particular detector.

C The system shall provide a report that gives a listing of the sensitivity of all of the detectors on any given panel in the system, or any given analog/addressable device loop within any given panel.

2.13 CENTRAL PROCESSING UNIT

A The Central Processing Unit shall communicate with, monitor, and control all other modules within the control panel. Removal, disconnection or failure of any control panel module shall be detected and reported to the system display by the Central Processing Unit.




B The Central Processing Unit shall also provide a real-time clock for time annotation, to the second, of all system events. The time-of-day and date shall not be lost if system primary and secondary power supplies fail.

C The CPU shall be capable of being programmed on site without requiring the use of any external programming equipment. Systems that require the use of external programmers or change of EPROMs are not acceptable.

D Consistent with UL864 standards, the CPU and associated equipment are to be protected so that voltage surges or line transients will not affect them.

E Each peripheral device connected to the CPU shall be continuously scanned for proper operation. Data transmissions between the CPU and peripheral devices shall be reliable and error free. The transmission scheme used shall employ dual transmission or other equivalent error checking techniques.

F The CPU shall provide an EIA-232 interface between the fire alarm control panel and the UL Listed Electronic Data Processing (EDP) peripherals.

G The CPU shall provide one high-speed serial connection for support of network communication modules.

H The CPU shall provide double pole relays for FIRE ALARM, SYSTEM TROUBLE, SUPERVISORY, and SECURITY. The SUPERVISORY and SECURITY relays shall provide selection for additional FIRE ALARM contacts.

2.14 LOOP CONTROL MODULE

A The Loop Control Module shall monitor and control all intelligent addressable devices. This includes intelligent detectors (Ionization, Photoelectric, or Thermal) and monitor or control modules.

B The Loop Control Module shall contain its own microprocessor and shall be capable of operating in a local/degrade mode (any addressable device input shall be capable of activating any or all addressable device outputs) in the unlikely event of a failure in the main CPU.

C The Loop Control Module shall provide power and communicate with all intelligent addressable detectors and modules on a single pair of wires. This SLC Loop shall be capable of operating as a NFPA Style 6 (Class B) circuit.

2.15 SYSTEM EXPANSION

A Design the main FACP and transponders so that the system can be expanded in the future (to include the addition of twenty percent more circuits or zones) without disruption or replacement of the existing control panel. This shall include hardware capacity, software capacity and cabinet space.

2.16 INTELLIGENT SMOKE DETECTOR

A Addressable devices shall provide an address-setting means using rotary decimal switches / Soft Control. Addressable devices shall use simple to install and maintain decade




(numbered 0 to 9) type address switches. Devices which use a binary address or special tools for setting the device address, such as a dip switch are not an allowable substitute.

B Detectors shall be Analog and Addressable, and shall connect to the fire alarm control panel's Signaling Line Circuits.

C Addressable smoke and thermal detectors shall provide dual (2)status LEDs. Both LEDs shall flash under normal conditions, indicating that the detector is operational and in regular communication with the control panel, and both LEDs shall be placed into steady illumination by the control panel, indicating that an alarm condition has been detected. If required, the flashing mode operation of the detector LEDs can be programmed off via the fire control panel program.

D The fire alarm control panel shall permit detector sensitivity adjustment through field programming of the system. Sensitivity can be automatically adjusted by the panel on a time-of-day basis.

E Using software in the FACP, detectors shall automatically compensate for dust accumulation and other slow environmental changes that may affect their performance. The detectors shall be listed by UL as meeting the calibrated sensitivity test requirements of NFPA Standard 72, Chapter 7.

F Photoelectric, Laser and Thermal detectors shall be of the Intelligent, analog addressable type, and shall provide dual level alarm and pre-alarm reporting. Pre-alarm shall serve as early warning of an impending alarm condition, and shall generate a trouble condition in the panel.

G Each detector head shall incorporate a microprocessor which provides for distributed system intelligence. The micro shall provide full monitoring and control of the device with memory for storage of pre-set sensitivity levels and other detection device parameters. For security purposes and system integrity no mechanical addressing switches shall be allowed for field devices. All setting of device parameter shall be done electronically.

H Analog-Addressable smoke detectors shall be equipped with a Day/Night Sensitivity Mode which may be selected by either manual or automatic input. Because certain smoke detector environments change from day (occupied) to night (unoccupied), a more sensitive or Night setting may be desirable. Adjustable sensitivity smoke detector values shall be distinctly identified in the system memory and by display.

I The detector SHALL NOT respond to refrigerant gas.

PHOTOELECTRIC SMOKE DETECTOR

J The detectors shall use the photoelectric (light-scattering) principal to measure smoke density and shall, on command from the control panel, send data to the panel representing the analog level of smoke density.

Multi Criteria Acclimating Detector

K The intelligent multi criteria Acclimate detector shall be an addressable device that is designed to monitor a minimum of photoelectric and thermal technologies in a single sensing device. The design shall include the ability to adapt to its environment by utilizing a built-in microprocessor to determine it's environment and choose the appropriate sensing Settings. The detector design shall allow a wide sensitivity window, no less than 1 to 4% per foot obscuration. This detector shall utilize advanced electronics that react to




slow smoldering fires and thermal properties all within a single sensing device.

L The microprocessor design shall be capable of selecting the appropriate sensitivity levels based on the environment type it is in (office, manufacturing, kitchen etc.) and then have the ability to automatically change the setting as the environment changes (as walls are moved or as the occupancy changes).

M The intelligent multi criteria detection device shall include the ability to combine the signal of the thermal sensor with the signal of the photoelectric signal in an effort to react hastily in the event of a fire situation. It shall also include the inherent ability to distinguish between a fire condition and a false alarm condition by examining the characteristics of the thermal and smoke sensing chambers and comparing them to a database of actual fire and deceptive phenomena.

Thermal Detectors

N Thermal detectors shall be intelligent addressable devices rated at 135 degrees Fahrenheit (58 degrees Celsius) and have a rate-of-rise element rated at 15 degrees F (9.4 degrees C) per minute. It shall connect via two wires to the fire alarm control panel signaling line circuit.

2.17 ADDRESSABLE PULL BOX (MANUAL STATION)

A Addressable pull boxes shall, on command from the control panel, send data to the panel representing the state of the manual switch and the addressable communication module status. They shall use a key operated test-reset lock, and shall be designed so that after actual emergency operation, they cannot be restored to normal use except by the use of a key.

B Manual stations shall be constructed with clearly visible operating instructions provided on the cover. The word FIRE shall appear on the front of the stations in raised letters, 1.75 inches (44 mm) or larger.

2.18 ADDRESSABLE DRY CONTACT MONITOR MODULE

A Addressable monitor modules shall be provided to connect one supervised IDC zone of conventional alarm initiating devices with 4 Inputs & 2 Outputs. (any N.O. dry contact device) to one of the fire alarm control panel SLCs.

B The IDC zone shall be suitable for Style D or Style B operation. An LED shall be provided that shall flash under normal conditions, indicating that the monitor module is operational and in regular communication with the control panel.

2.19 ADDRESSABLE CONTROL MODULE

A Addressable control modules shall be provided to supervise and control the operation of one conventional NACs of compatible, 24 VDC powered, with Relay Outputs, polarized audio/visual notification appliances. For fan shutdown and other auxiliary control functions, the control module may be set to operate as a dry contract relay.

B The control module shall mount in a surface mounted back box.




C Power shall be provided by a separate supervised power circuit from the main fire alarm control panel or from a supervised, UL listed remote power supply.

2.20 ISOLATOR MODULE

A Isolator modules shall be provided to automatically isolate wire-to-wire short circuits on an SLC Class A or Class B branch. The isolator module shall limit the number of modules or detectors that may be rendered inoperative by a short circuit fault on the SLC loop segment or branch. At least one isolator module shall be provided for each floor or protected zone of the building.

B If a wire-to-wire short occurs, the isolator module shall automatically open-circuit (disconnect) the SLC. When the short circuit condition is corrected, the isolator module shall automatically reconnect the isolated section.

C The isolator module shall not require any address-setting, and its operations shall be totally automatic. It shall not be necessary to replace or reset an isolator module after its normal operation.

D The isolator module shall mount in a standard 4-inch (101.6 mm) deep electrical box or in a surface mounted backbox. It shall provide a single LED that shall flash to indicate that the isolator is operational and shall illuminate steadily to indicate that a short circuit condition has been detected and isolated.

2.21 ADDRESSABLE BEAM DETECTOR

A The addressable optical beam detector or projected beam smoke detector shall be used for detection in large volumes and double heights. The set shall consist of a transmitter, receiver and control electronics. The transmitter shall project a modulated infrared light beam to the receiver. If there is smoke in the beam path, the receivers signal shall be reduced by the value proportional to the density of the smoke. If the signal is reduced to a level between the obscuration threshold and 93% for 8-10 seconds, the fire alarm relay shall be activated. The alarm obscuration threshold shall be set at 25%, 35% or 50% obscuration depending on the application. The typical coverage shall be equal or more than 100 m x 15.25 m.

2.22 DUCT SMOKE DETECTOR

A The housing shall also protect the measuring chamber from damage and insects. The housing shall utilize an air exhaust tube and an air sampling inlet tube that extends into the duct air stream up to ten feet. Drilling templates and gaskets to facilitate locating and mounting the housing shall also be provided. The housing shall be finished in baked red enamel. Remote alarm LED indicators and remote test stations shall be provided.

B When sufficient smoke is sensed, an alarm signal to be initiated and appropriate action taken to change over air handling system to help prevent the rapid distribution of toxic smoke and fire gases throughout the areas served by the duct system.

2.23 SPEAKER & STROBES

A The low profile speaker/strobe shall not extend more than (2.5cm) past the finished wall surface, and provide a switch selectable audible output of 2W (90dBA), 1W (87dBA),




1/2W (84dBA), or 1/4W (81dBA) at 10 ft

B Strobes shall provide synchronized flash outputs, that shall be switch selectable for output values of 15cd, 30cd, 75cd & 110cd. Wattage and candela settings shall be visible with the cover installed.


3.01 SCOPE OF WORK

A These specifications intended to cover installation and testing of Fire Alarm System complete in all respect with all equipment, cabling, fittings and accessories for efficient and trouble-free operation. The material to be supplied by the Contractor and work to be carried out by the Contractor shall be in general, but not limited to, conforming to the specification laid down for each item.


A Following British Standards and Code of Practice shall be applicable to the work of erection and commissioning of the transformer.

i. NFPA 72

ii. BS: 5839

iii. Local Codes & Requirements


A Cabling for Fire Alarm System shall be min. 1.5 sq. mm., stranded copper conductor, twisted cables with an overall FRLS (Fire Retardant low smoke) covering of RED color lining. Cable shall be 500 V grade fire survival cables. The cables used shall be exclusively for Fire Detection System. The multi-core cables shall not be shared for other low voltage or high voltage circuits.

B Other equipments as specified in Supply item specifications.


A All cables, junction boxes, cables supports and hangers shall be concealed in finished areas and may be exposed in unfinished areas. Smoke detectors shall not be installed prior to the system programming and test period. If construction is ongoing during this period, measures shall be taken to protect smoke detectors from contamination and physical damage.

B All fire detection and alarm system devices, control panels and remote annunciators shall be flush mounted when located in finished areas and may be surface mounted when located in unfinished areas. Manual Call Points shall be suitable for surface mounting or semi flush mounting as shown on the plans, and shall be installed not less than 42 inches, nor more than 48 inches above the finished floor.

3.05 CABLING

A The cables connected to detectors shall be given S –loop on both the sides of the




detectors which shall be properly clamped to the ceiling. Loop shall also be left where cables connects sounders, panels, dampers etc. Appropriate glands shall be provided where the cables enters the junction box.

B Cables shall be laid by skilled and experienced workmen. Care shall be taken while laying cables to avoid kinks. At all the changes in direction (vertical and horizontal planes) the cables shall be bent smooth with a radius as recommended by the manufacturers.

C No joints shall be allowed between two points. The sleeve at joints shall be shaved off like a pencil and shall not be cut square to avoid cutting of conductors.

D All initiating, and supervisory circuit wiring shall be not less than 2.5mm2, 500 volt, copper FRLS cables.

E Cabling shall be completely installed, field connections made and tested for stray voltage, short circuits, and ground faults prior to connection to the intelligent modules.

F All fire alarm junction boxes should be mounted in approved locations for ease of maintenance from floor level.

3.06 INSTALLATION OF DETECTORS

A All detectors (and bases) shall be installed in accordance with guidelines set out in NFPA -72 and the installation instructions provided by the manufacturer.

B All detectors shall be installed in the exact locations specified in the design drawings. The type of detector installed in each particular location shall be the type specified in the design drawings.

C Cable and wire entries to detector bases shall be fitted with grommets to prevent possible damage to the insulation. Cable and wire strain relief clamps shall be provided at all entries to detector bases. Cable entries of detector bases used in environments with abnormal atmospheric or operating conditions shall be appropriately sealed to prevent ingress of dust, water, moisture or other such contaminants.

3.07 INSTALLATION OF CONTROL MODULES

A All control devices (e.g. call points, sounders, interface modules, etc.) shall be installed in accordance with the guidelines set out in NFPA-72 and the installation instructions provided by the manufacturer.

B All control devices and associated modules shall be installed in the exact locations specified in the design drawings.

C Cable and wire entries to control devices shall be fitted with grommets to prevent possible damage to the insulation. Cable entries of detector bases used in environments with abnormal atmospheric or operating conditions shall be appropriately sealed to prevent ingress of dust, water, moisture or other such contaminants.





DOCUMENT TITLE

TECHNICAL SPECIFICATION FOR SUPPLY, INSTALLATION, TESTING AND COMMISSIONING F EXTRA LOW VOLTAGE WIRING

INSTALLATIONS


CONTENTS


PART 1 GENERAL 2 1.01 SCOPE OF WORK 2 1.02 CODES AND STANDARDS 2 1.03 QUALITY ASSURANCE 3 1.04 INSPECTION AND TESTING 3 1.05 SUBMITTALS 3 1.06 TRANSPORT, DELIVERY & STORAGE 3


RECORD OF REVISIONS







1.01 SCOPE OF WORK

A These specifications and the scope of work are intended to supply, installation, connection, testing and commissioning of the wiring for Telephone / Data / TV system and other related accessories required to complete the wiring and installation.



A The cables shall be conforming to the following standards of latest revision :

B No. Title

IS: 732 Code of practice for electrical wiring installation (System voltage not exceeding 650 V)

IS: 5608 Telephone wires

IS: 9537 (Part - 2) Rigid steel conduits for electrical wiring.














This Specification






A EARTH CONTINUITY PATH

B The earth continuity conductors shall be tested for electrical continuity and the electrical resistance of the same along with the earthing lead but excluding any added resistance or earth leakage circuit-breaker, measured from the connection, with the earth electrode to any point in the earth continuity conductor in the completed installation and shall not exceed one ohm

C All the above tests shall be carried out in presence of client and the results shall be recorded in prescribed forms. Any default during the testing shall be immediately rectified and that section of the installation shall be re tested. The completed test result form shall be submitted to the client for approval

1.05 SUBMITTALS

A DURING APPROVAL

7. The bidder shall submit data sheet as per the make selected

8. Test certificates

B HANDING OVER DOCUMENTS



19. As built drawing indicating wiring route & equipment locations








A 28. Location : Ahmedabad, Gujarat

29. Site elevation : 50m above mean sea level

30. Ambient : 150 deg C, cm/watt















2 Frequency 50 Hz




± 6 %


1000 MVA






2.05 GENERAL

A Prior to laying of conduits, the contractor shall submit for approval, the shop drawing for conduit layout indicating the route of the conduits, number and size of the conduits, location of junction/inspection/pull/outlet boxes, number and size of wires pulled through each conduit and all other necessary relevant details. Only after the drawings are approved, the contractor shall proceed with the work of laying of conduits.

B The extra low voltage system cables will be terminated on the tag block / junction box located at each floor. From this tag block / junction boxes, separate M.S. conduits shall run for individual outlet connections to each area through tag boxes / junction boxes.

C The conduits shall run in the surface manner in the vertical shaft and shall run in surface / concealed manner at every floor between shaft and the outlet box through tag box / junction boxes located on each floor.

D Extra low voltage system cables / multi pair telephone cables shall be pulled through the above conduits and then be connected at both ends.

2.06 MATERIAL

A PVC Conduit

All non-metallic PVC conduits shall conform to IS: 9537 ( Part - 3 ). The conduit shall be planed and of type as specified in IS: 9537 and shall be used with the corresponding accessories (Refer IS: 3419 specification for fittings for rigid non metallic conduits). PVC conduits shall be rigid unplasticised, heavy gauge having 2.0 mm. wall thickness upto 20 mm. diameter conduit and 2.5 mm. wall thickness for all sizes above 20 mm. Diameter

B M.S. Conduit

Conduits shall conform to IS: 9537 ( Part - 2 ), finished with galvanized surface. No steel conduit less than 25 mm. in diameter shall be used. Conduits shall be solid drawn of lap welded type, with minimum wall thickness for conduits having 25 mm. and above diameter. The conduits shall be delivered to the site of construction in original bundles and each length of conduit shall bear the label of manufacturers. The conduit accessories such bends, coupling etc. shall be conforming to the relevant Indian Standard specification

C CABLES & WIRES :

The type of cables and the services shall be as follows :

Telephone Cable :

Telephone multipair cable shall confirming to DoT specifications.

Annealed tinned bare copper conductor, PVC insulated, twisted to form pair in concentric layers, individual and overall shielding with aluminium-mylar tape as required, armouring as required having 0.5 mm. Dia for TTB (Krone Box) to EPABX

OR

CAT-6 UTP cable for telephone point to TTB (Krone Box)




Multipair telephone cables shall be jelly filled for better protection against mouse and rats.

PVC insulated, PVC inner sheathed and outer sheathed.

D Brief requirements for data cables :

Sr. Particular Requirement

1 Class E attenuation

2 Standard ISO/IEC 11801, CENELEC EN50173 and TIA/EIA 568B.

3 Certification UL listed, certification required

4 Performance guaranteed 6 connections in any length channel configuration up to 100 mtr

5 Support Category 6/Class E NEXT, PSNEXT, FEXT, ELFEXT, PSELFEXT and return loss extrapolated to 250 MHz

6 Capability Excess of 1 Gbps to the workstation in accordance with application standard

7 Supportive standard IEEE 802.3 1000BASE-T, TIA-854-A 1000BASE-TX, ATM Forum CB1G plus other legacy LANs and applications as well as Video also.

Physical Specifications :

8 Weight not more than 11.88 kg/305 m

9 Nominal Jacket Thickness not more than 0.022 in (0.559 mm)

10 Nominal Outside Diameter not more than 0.232 in (5.89 mm)

11 Operating Temperature -4°F to 140°F (-20°C to 60°C)

12 Gauge 23 AWG

2.07 JUNCTION BOXES FOR EXTRA LOW VOLTAGE SYSTEM

A The junction boxes / the telephone tag blocks shall be suitable for the multi pair wires / cables and shall have two terminal blocks, cross connect type. All incoming and outgoing cables shall be terminated on separate terminal blocks. The cross connecting jumpers shall be insulated wires of same diameter and connected in same manner.

2.08 PVC TRUNKING




U-PVC Trunking for distribution of Voice Data and power should be used for cable management and should accept RJ 45 data socket and power socket or other wiring accessory like switches, indicators etc. Trunking should be made from fine quality U PVC (Un- plasticised PVC), it should not combine with placticizer addictives and should be white RAL 9010 colour. Trunking body should be covered with peel off plastic cover, which can be peeled off after installation is complete for protection against dust or any other stains.

Standard size of the Trunking having minimum thickness of 2mm is 150 x 50mm nominal al size of the Trunking up maximum of four isolated compartments width separation partition zip lockable type flexible cover. Trunking body and cover should be minimum of w meter length for the case of installation and maneuvering. Trunking should have uniform thickness throughout its length.

Trunking should be equipped with rail on its surface on which clip on partition can be clipped which should be accept frames/plates for wiring devices from 1 module to 8 modules.

To minimize the interference on data cable and maintain separation throughout its run, flat T junction and flat Angle should have inbuilt angle for alignment with different angles of wall corners. Ensure degree of variation should be 600 to 1200 and 800 to 1000 for internal and external angle respectively. VDI accessories are must at angles to ensure perfect bending of data cable, which prevents data loss when power cable and data cables are taking through the same Trunking.

Trunking should have insulation rating of 5 Mega Ohm. Trunking should have following fire resistance characteristics.

1. Operating temperature between 400 & 600 C

2. Glow wire test 9600 C

3. Oxygen index –50 plus or minus 5

4. UL 94 – VO




3.0 PART – 3 (INSTALLATION)

3.01 INSTALLATION

A Separate conduits of 25 mm. diameter (minimum) shall be laid for extra low voltage system cables / wires.

B Only certified wireman and cable jointers shall be employed to do joining work.

C Before the wires are drawn into the conduits the conduits shall be thoroughly cleaned of moisture, dust, and dirt or any other obstruction by forcing compressed air through the conduits.

D All cables, laid on cable racks / trays shall be neatly stitched together.

E Extra low voltage system wires / cable terminations both at the junction boxes and at the socket outlets shall be done as per method approved by consultants and in conformity with their rules and regulations.

F The final branch connections with single / twin pair cables in conduits and the minimum number of cables in each conduit shall be as follows :

Conduit dia. in mm. Max. No. of cables

20 2 Nos. single pair




3.02 FIXING OF CONDUITS

A Conduits embedded in concrete shall be installed in the framework before pouring concrete. The conduits shall be installed above the bottom reinforcing bars, and shall provide positive wire fastening of the conduit to the rein forcing rods at an interval of not more than one meter, but on either side of couplers or bends or outlet / pull / junction boxes or similar fittings, proper hold fast shall be fixed at a distance of 30 cm from the center of such fittings. Conduits embedded in the wall shall be fixed inside the chase. The chase in the wall shall be neatly made and be of ample dimensions to permit the conduit to be fixed in the manner desired. In the case of building under construction, chase shall be provided in the wall at the time of their construction and shall be filled up neatly with cement mortar 1:4 after erection of conduit and brought to the original finish of the wall. Cutting of horizontal chases in walls is prohibited. The conduits shall be fixed inside the chase by means of staples or by means of saddles not more than 60 cm apart.

B Conduits shall be installed in such a way that the junction, derivation and pull boxes




shall always be accessible for Repairs and maintenance work. The location of junction / pull boxes shall be marked on the shop drawings and approved by the Employer.

C A separation of 200 mm shall be maintained between electrical conduits and hot water / chilled water lines in the building.

3.03 DATA POINT TERMINATION

A The termination of data point jack shall be done using clamping device only as recommended by manufacturer.

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