GREEN GAS LIMITED (A Joint Venture of GAIL and IOCL) CITY … of II_Tech_Odoriser.pdf · 2017. 12....

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GREEN GAS LIMITED (A Joint Venture of GAIL and IOCL)

CITY GAS DISTRIBUTION PROJECT

LUCKNOW AND AGRA

VOLUME II OF II (TECHNICAL) BID DOCUMENT FOR PROCUREMENT OF ODORISER SYSTEM

(BID DOCUMENT NO - 029/LEPL/GGL/06-R0)

LIMITED DOMESTIC COMPETITIVE BIDDING

Lyons Engineering Pvt. Ltd.

GREEN GAS LIMITED CITY GAS DISTRIBUTION PROJECT

SCOPE OF WORK & TECHNICAL SPECIFICATIONS FOR ODORIZER SYSTEM OF GGL,

LUCKNOW & AGRA

DOCUMENT NO GGL-ODO-GN-DOC-SW-001

0 18.12.17 ISSUED FOR BID UUN JR SB

REV DATE DESCRIPTION PREP CHK APPR

SCOPE OF WORK & TECHNICAL SPECIFICATIONS FOR ODORIZER

SYSTEM OF GGL, LUCKNOW & AGRA

DOCUMENT NO. Rev

GGL-ODO-GN-DOC-SW-001 0

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Contents 1. INTRODUCTION ................................................................................................... 3

2. SCOPE OF WORK .................................................................................................. 3

3. CODES & STANDARDS ....................................................................................... 3

4. ORDER OF PRECEDENCE ................................................................................... 4

5. INSTRUCTIONS TO VENDOR ............................................................................ 5

6. BIDDER SHALL FURNISH THE FOLLOWING ALONG WITH THE BID: ..... 5

7. EXCLUSIONS ........................................................................................................ 5

8. AMBIENT CONDITIONS ...................................................................................... 6

9. SCOPE OF WORK .................................................................................................. 6

10. SPECIFICATION ODORIZATION SYSTEM ...................................................... 7

11. INSPECTION AND TESTING ........................................................................... 13

12. TESTING AND COMMISSIONING ................................................................... 14

13. DATA DETAILS ................................................................................................... 14

14. FUNCTIONAL TEST ........................................................................................... 15

15. AFTER COMMISSIONING AT SITE ................................................................. 15

16. TRAINING REQUIREMENTS ............................................................................ 15

17. WARRANTY SERVICING AND SPARE PARTS ............................................. 16

18. PACKAGING ........................................................................................................ 16

19. ANNUAL MAINTENANCE CONTRACT (AMC): ............................................ 16

20. ANNEXURE-1 (DATA SHEET) .............................................................................. 20

21. ANNEXURE : 2: QAP FOR ODORIZATION UNIT SYSTEM .............................. 24

22. ANNEXURE : 3: LIST OF RECOMMENDED TPI AGENCY .............................. 247



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1. INTRODUCTION

The intent of this specification is to establish minimum requirements to manufacture and supply of Odorizing System used for supply of natural gas.

The scope of the tenderer will include manufacture/ supply, inspection/testing/ marking/packaging/ handling and despatch of Odorizing System, as indicated in the Technical Specification / Data sheet & Schedule of Rates, meeting all the requirements as laid down in manufacturing standard or conforming to specifications laid in this document.

The Odorizing System is required to mix the odorant in the natural gas for identifying the leakage in the associated equipment or during transportation of piped gas in the city area. The odorizing system shall be located in a separate area at CGS.

2. SCOPE OF WORK

The intent of this technical specification is to outline the requirement under which the vendor shall Design, Engineering, Manufacture, Inspect & Test the equipments at Works, Painting, Packaging & forwarding, Insurance, supply to Sites/Stores, Loading & unloading, tubing, piping, cabling, Installation, testing, trial run, Commissioning and Performance Testing at Sites, Training, erection and commissioning spares with all auxiliaries & features required for efficient & safe operation of Odorization system. The quantities of quantity required shall be as per SOR (Schedule of Rates) cited elsewhere in the tender document.

Since it is not possible to specify every piece of equipment/item, any item not specifically mentioned but required as per Good Engineering Practice and for the safe & trouble free operation of the Odorization system shall deemed to have been specified & shall be in the scope of Vendor without any cost or time implication.

3. CODES & STANDARDS

The codes and standards listed below are the minimum reference for the purposes of design, manufacture, supply, testing at manufacturer’s work shop, trail run, erection, commissioning, performance acceptance test etc.

Any modification suggested by the statutory bodies either during drawing approval or during inspection, if any shall be carried out by the manufacturer without any additional cost and delivery implications.

Latest versions/revisions for the following codes and standard are referenced to & made part of specification:

ASME B 31.8 : Gas Transmission and Distribution Piping Systems.



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PNGRB CGD Standard : Technical standard and specifications including safety standards for CGD networks (T4S-CGD)

IGE/SR/16 : Storage of Odorant and Use of Odorant Systems

IS 5572 : Classification of hazardous areas (other than

mines) for electrical installations.

IS 5571 : Guide for selection of electrical equipments for

hazardous area

OISD 113 : Classification of areas for electrical installations at

hydrocarbon processing and handling facilities.

Any other Codes & Standards mentioned elsewhere in this Scope of work /Technical Specification or which are required to be complied with as per the prevailing Government of India regulations shall also be followed.

4. ORDER OF PRECEDENCE

In the event of any conflict between specifications, related standards and codes, any other document, the following order of priority shall govern and more stringent conditions shall be applicable:

a) PNGRB Regulation b) Statutory Requirements c) Design Basis d) Data Sheet/QAP e) P&ID f) Drawings g) Technical specification of particular item h) Code and Standard

Compliance with these specifications shall not relieve the bidder of the responsibility of furnishing equipment and accessories of proper design, material and workmanship to meet the specified operating conditions.

No deviations to the technical requirements and to the scope of supply specified in this enquiry document shall be accepted and offers not in compliance to the same shall be rejected. In case a deviation is required due to inherent design of the equipment offered, the bidder shall list all such deviations at one place giving reasons thereon.



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5. INSTRUCTIONS TO VENDOR

The Vendor shall carry out modification required by the statutory bodies either during the approval or during inspection of the installation. All expenses shall be borne by the vendor. Unless the above formalities are cleared, supply part shall be deemed incomplete.

Any work, which is considered to be unsatisfactory and of poor workmanship shall be rectified by the vendor without any extra cost and time implications.

All the necessary arrangement & statutory compliance for the supply, installation & filling of odorization system is bidder’s responsibility.

The bidder shall provide necessary manpower, tools & tackle, transport, communication, cranes, scaffolding etc. to complete within the scheduled time.

All safety and warnings notices, barriers, padlocks etc required during installation testing and commissioning for the safety of all site personnel and equipment shall also be provided by the bidder.

The bidder shall provide civil foundation drawing and Base frame within two weeks of placement of order.

The Bidder shall not vary the scope of work as detailed in tender and approved drawings without written permission of owner.

Loading, unloading, transportation to GGL store/site are in the bidder’s scope. Installation and supervision of installation and erection of Odorization system shall be in the bidder’s scope.

6. BIDDER SHALL FURNISH THE FOLLOWING ALONG WITH THE BID:

(1) Completely filled in Data Sheets of Odorization system

(2) Deviations if any to this Technical Specification

(3) Tentative Lay out/key plan/General Arrangement indicating size of skids, centre distance between skids and space required along with maintenance requirements

(4) (a) Utilities requirements (b) Electrical Load summary

(5) Catalogues

7. EXCLUSIONS

The following are excluded from the scope of the bidder:

All civil works and foundation design, however the bidder shall furnish all the relevant data for design of any pedestal if required.

Trenches for pipes/tubes



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8. AMBIENT CONDITIONS

Complete compressor package shall be suitable to work under the following climatic conditions:

Wind velocity km/hr (max.):160

Amb. Temperature (Min./Max.): -5 Deg C / 60 Deg C

Design Wet bulb Temp.: 27oC

Design Relative Humidity: 10 - 95%

9. SCOPE OF WORK

Scope of work shall include but not limited to complete odorizing unit including odorant storage container with odorant, automated loading to containers, automated unloading, Pneumatic Panel, Electronic Control unit, Automatic dosing system with stand by pump and injection units (one working & one stand by), necessary pipe, valves, fittings, instruments etc.

Scope shall start from connection of natural gas from main gas pipe line with necessary valves, tubing, fittings for operation of system of gas actuation, PRS (if necessary), dosing point connection tubing, valves and fittings to the main gas pipe line. Electrical /Control cables including laying in pipe conduit, connection to control room and locating electrical panel in control room including necessary cabling.

Necessary piping and isolation Valves, SS Tubing, all type of cabling, Ex. proof Junction Boxes, Laying & termination of cables, Cable Glands (Double Compression type), Cable trays and mounting accessories for field unit and Control unit. Bidder shall consider app. 150 Metres cable length for each site from field unit to Control Room. All the cable and tubing shall be mounted and dressed on the cable tray.

Vent connection from odorizing unit with scrubber, flame arrestor, valves, protection cover with odorant neutralization system and vent stack 3m above the unit top also included in scope of work.

The unit shall be skid mounted and shall be complete with foundation bolts, which shall be grouted by vendor at site.

For blanketing purpose vendor shall also provide Nitrogen cylinder arrangement.

Any additional requirement necessary for smooth operation of the system will be in Bidder’s scope. Bidder shall provide warning instruction on each container for safe use.

Bidder shall quote for recommended spares for two- year operation and maintenance with unit price of each item along with the offer.

All the necessary Valves / RO etc required to be mounted in the main pipeline shall be provided with Companion flanges, necessary gasket, and bolts complete ready to



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installed condition. The bidder shall inform the scheme and the space requirements along with the offer.

If more than one inlet tapping is required then the client will provide only tapping in the pipeline and the necessary isolations valves will be in the scope of Bidder. Bidder shall provide the minimum distance to be maintained between the tapping.

Bidder shall categorically confirm all the clauses of technical specification in the offer. Any deviation shall be indicated with proper reasoning and if necessary with supporting documents.

NO. OF UNITS

CITIES NO. OF ODORIZING UNIT LUCKNOW 1AGRA 1

10. SPECIFICATION ODORIZATION SYSTEM

It is anticipated that the flow rate and pressure of natural gas will be fluctuating. Hence, Odorizing System should design with optimum degree of flexibility, reliability, and operability to accommodate the varying composition of feed, other unexpected contaminants, flow rate and pressure.

The Odorizing System should be designed with minimum operator intervention. The maintenance frequency of the system shall be 18 month or better.

The odorizing system facilities should consist of standardized modules, which are assembled into a complete system. Each system should be designed in packaged frame, housing etc.

The design life of the odorizing system shall be 30 years (minimum).

For the Odorizer auto mode operation flow signal shall be provided in the form of analogue 4- 20 mA from each existing flow computers / metering device by GGL.

Automatic Dosing System with stand by pump and Injection probe assembly (One working and one stand by). For any emergency situation such as main odorizing system stops due to power / control unit failure, vendor has to provide Emergency dosing pump / arrangement for automatic continuous odorization. Emergency dosing pump must register the amount of odorant dosed into the pipeline during failure of the main system. A suitable metering arrangement shall be made. The system shall work on positive displacement type pump (displacement volume must be adjustable) constructed by 316 stainless steel. The pump based dosing system shall be designed such that the actuation mechanism is not in contact with the odorant. The pump shall be capable of operation at a maximum rate. The pump shall have isolation valves at inlet and outlet for easy removal of pump during maintenance without disturbing tubing or piping. The system shall have the provisions of purging odorant in a closed loop type during maintenance to avoid odorant leak into the atmosphere.



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The gas inlet at define pressure will be provided from the metered section at any one point for Odorizer (Size 1” / ¾” tapping). Any pressure difference and pressure reduction if required for inlet gas to odorizing system shall be the responsibility of the Bidder.

The metering system is in dual redundant mode (Two Stream Metering System).Hence the offered electronic control unit is able to accept two nos. of 4-20mA Signals corresponding to process the flow signals (4 to 20mA) from two meters simultaneously. If the flow has been changed from stream 1 to 2 (or if both the stream operates), the electronic control unit should recognize the stream changes through totalizer or signal adder. Also electronic control unit should display the gas flow of two streams separately. The supply, laying, termination of signal cables from flow computer panel of each metering stream to odorizer control unit is in the Bidder’s scope .

A) ELECTRONIC CONTROL UNIT:

The supply to Electronic Control Unit of the Odorizing System will be by an external power source. Power supply (UPS) Single Phase AC. 230 V ±10%, 50Hz. ±5%, to be provided by owner.

Bidder has to provide Surge protection device of Make MTL/ Pheoenix in 230 V AC UPS Supply provided by the client. This should be installed at the JB where incoming power supply will be terminated). Any problem in the input supply, the equipment should be protected. The surge protection devise shall be pluggable and testable with thermal disconnection and indication facility. It should be for input power supply as per IEC standard IEC-61643-12.

Vendor to confirm that the supplied Electronic Control Unit is suitable for the above power supply and indicate the maximum and minimum tolerable values of voltage for safe operation of Odorizing System. Vendors must include suitable voltage conditioning system in their scope to prevent failure from voltage fluctuations.

Electronic Control Unit should be provided with a liquid crystal display (LCD) for ongoing flow monitoring, operation modes etc. It should be easy to read lighted display. Displays must remains active for at least 15 minutes after power failure. Necessary battery backup shall be provided in the system. Electronic unit shall have the external keypad for entering the data and provide password protection for unauthorised use.

Owner will provide UPS supply for Odorizer Control Unit in Control room. The Power Supply cable and the terminations of power supply cable at Odorizer control Unit is in the Vendor’s scope.

For the Odorizer auto Mode operation flow signal shall be provided in the form of analogue 4-20 mA / serial communication data inputs / pulse from Flow Computers/ metering device. The offered Electronic Control Unit is able to accept two nos. of 4-20 mA signal/ serial inputs corresponding to instantaneous standard flow rates from each flow computer of dual steam metering system. For serial communication the protocal will be Modbus and all the necessary register addressing has to be done by the vendor



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Physical design should be of steel body with doors/ panels with suitable paint to minimize corrosion and ongoing wear and tear. The electronic Control Unit should have locking arrangement. The panel/cabinet should be suitably designed to accommodate all required electronic equipment.

Electronic Control Unit shall be installed in control room. Necessary provision for proper mounting shall be provided. Cable entry shall be from bottom, therefore necessary removable Gland plate with matching hole as per supplied Cable glands shall be provided.

The Protection Class of Electronic Control Unit shall be weather proof to IP 65/NEMA 4.

Odorizing System should not be shut off in case of:

i. Power failure ii. Failure of throttling valve/regulator iii. Low Flow iv. Failure of any field instruments (Transmitters, temp. element, etc.)

The Electronic Control Unit should be capable of storing odorizing data and such data should be downloaded frequently into another portable computer to store the data. In order to meet the above requirement, 2 Nos. of RS232/RS485 Serial Communication ports shall be included in the Electronic Control Unit. One Port will be utilized for Portable Computer and another port will be utilized for future SCADA application. For this application, Vendor shall include in the scope all relevant software, together with the license, compatible to Microsoft Windows XP/7.0/8.0 software. Odorizer Electronic controller unit shall be provided with inbuilt GSM modem. The vendor shall provide the necessary accessories required for proper GSM communication.

The data of odorizing unit shall be hook-up by the client in future by providing SCADA system and RTU. The odorizer electronics shall have facility to read & write the data remotely through SCADA. The electronics should have provision and dedicated communication card & port for connection to RTU for monitoring and control the transaction parameter. The detail requirements of SCADA will be communicated to the successful vendor during detail engineering. For selection of equipment compatibility for SCADA system vender shall considered the MODBUS RTU protocols, FCC-68, RJ 45 connection type, RS232 communication standard with configurable software.

The controller shall have provision for programming desired injection rate in mg/SCMH or as desired by client.

The controller shall have automatic monitoring of system functions and have the capability to alarm in case of system malfunction. This alarm system will monitor flow signal, power supply, the volume verification system and the injection pump.

The controller shall monitor system performance, and display locally, in a continuous scrolling manner, the following information:

time between strokes odorant volume injected (resettable) total injections(resettable)



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odorant volume/stroke odorant meter level current pipeline flow rate in % current odorant temperature alarm conditions

The System should have facility to monitor actual use of odorant compensated for temperature variation.

All Signal / Control Cable shall be armored type.

The control unit should be complete with internal pulse generator, pulse scalar and automatic /manual change over switch.

B) VERIFICATION:

The system shall have an accurate means of measuring the volume of odorant injected. The system shall have electronic means of indicating the verification device is working properly. The system shall have means to test the operation of the verification device.

C) SYSTEM AUDIT TRAIL:

A system audit trail shall be available which will record all events specific to system performance. The controller shall have storage device to update & record the events and available for download to external device remotely or locally.

The audit trail device shall be capable of recording system data for at least three months. The system audit trail software shall be Windows based and capable of handling records for several odorant systems.

The software shall be capable of easily providing odorant record for each odorant system. These records shall be for daily operation or hourly operation, and shall include any and all pertinent information specific to that systems operation including; odorant use, alarms, high and low odorant rates, parameter changes.

D) STORAGE CONTAINER

Vendor shall supply 1 no. of 1000 Liters capacity storage containers for Odorant. Container should have positive pressure of Inert Gas, the storage container should be made up of stainless steel (SS304) tanks suitable and certified for the odorant handling. The container shall have inlet, outlet, drain valves, level indication local and low level alarm switch with hooter, Y strainer at outlet, suitable odorant filters, non return valves, pressure regulation valves with safety and alarm, pressure relief valve along with manual gas vent valve. Vent should be only for Inert gas. No Odorant shall be vented in any case. Vent should have neutralizer container in case if there is a possibility of odorant being vented out. Warning & Safety Instruction stickers shall be provided for each container.

The odorant tank shall be constructed to ASME specifications. The tank shall have all valves necessary for proper filling, as well as volume indication, pressure relief, and pressure gauges.



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E) ODORANT UNLOADING PUMP

Odorant Unloading Pump - Pneumatic or Exp. Proof electrically controlled Pump (portable type), operated pump to unload to storage containers. System shall have Nitrogen Blanketing to avoid leakage of odorant to atmosphere. Necessary Nitrogen Cylinder shall be provided for blanketing by nitrogen. Suitable Provision of locating odorant drum close to Container and easy handling of pump with flexible hose along with necessary valves, tubes, Hydro chloride solution for neutralizing, fire extinguisher, Mask, gloves, goggles, & eye washer for safety, Active carbon saw dust as an odorant absorber etc. to unload odorant to any of the storage containers to be provided.

Vendor shall provide Odorant Loading / unloading System for the filling of Odorant in to the Storage Containers. Manual pump (portable type) with proper safety features and with necessary connecting Hose & connector / coupler should be provided and shall be suitable for uses in Hazardous area. If refilling through Milkman concept then filling system shall have Nitrogen Blanketing System to avoid leakages of Odorant to Atmosphere during loading / Unloading. Necessary Nitrogen Cylinder may be provided for blanketing.

Vendor shall provide detail procedure and the arrangement for filling the Container with Odorant. It is the responsibility of the Vendor to fill the odorant (to be supplied by Vendor for first time filling) in Container/ tanks at site during final commissioning. The Handling, transportation, storage, filling and final commissioning shall be in Vendor’s scope.

Vendor shall Supply Suitable Odorant absorber with necessary handling accessories in suitable storing unit for Odor and neutraliser for spillage handling of Odorant. The container shall be suitable for handling and Storing of these Chemicals for uses.

F) PNEUMATIC PANEL

All transmitters & temperature element should be intrinsically safe “exia” as per IEC79-11 and solenoid valves, switches and related junction boxes should be flame proof “Exd” as per IEC79-11. Flying leads from any of the instrumentation items are not acceptable.

The odorizing system shall be shipped in fully assembled condition. The equipment shall operate on gas. The equipment shall be located close to line pipe. Vendor shall take necessary connection from existing pipe, provide necessary valves and pressure reducing station for operation of odorizing unit. Dosing point connection to line pipe with necessary valves are also in vendor’s scope of work. Exhaust from the system should be vented 3 meters above equipment level with valves, flame arrestor and rain protection cover.

Electrical point shall be available at control room. Vendor shall provide and lay electrical and control cables from control room to the equipment through underground GI pipes.



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Vendor should include in his scope provision of base frame to be embedded in the foundation. Vendor shall supply base frames in separate packing, if required.

The pneumatic panel shall have cabinet and it shall be installed in the Hazardous area and with necessary safety measures.

Odorizing system should have the provision of automatic washing in order to prevent smell during dismantling of equipments for maintenance i.e. sending odorant from the system equipments, tubing etc back to odorant tank.

The Odorizing System shall be shipped in fully assembled condition. Only gas supply connection and power supply connection shall be made on site.

The pneumatic panel shall have cabinet and it will be installed in the Hazardous area.

The field unit (pneumatic panel with container assembly) shall be located in the hazardous area and may be more then 50 Meters away from the Main Gas pipe line. The Electronic unit will be in control room and may be more then 150 meter away from the field unit. The supplier shall indicate the distance limitation if any for the installation clearly during bid stage. Client/Consultant will not entertain any dispute during detail engineering and vendor has to supply the system to meet the tender requirements.

The base frame shall be embedded in the foundation hence supply the base frames in separate packing, if required.

G) PIPE WORK, VALVES AND FITTINGS

Pipe work should be designed, tested and installed to ensure its safe operation at the worst conceivable conditions of flow, pressure and temperature.

All high pressure SS tubing work should be fully annealed (Bright annealed) seamless conforming to ASTM A-269, SS-316. The piping / tubing shall be of Sandvik make. Valves & fittings shall be of Parker and Swagelok make.

The system should be “go-no-go” gauge able to demonstrate that the fittings are properly tightened. Wherever possible, valves and control devices should incorporate the same end connector system. The number of fittings used should be minimized.

Vendor should also include a flexible hose of 5 meters length for connection of the odorizing unit with the odorant /loader along with necessary quick release coupling at ends.

The vendor should ensure that personnel assembling the pipe work should be competent in the system employed.

The preferred valve types for isolation are 1/4 (quarter) turn ball valves. Such valves shall have similar material as of the tube they are attached to. Ball valves must be of good quality and be appropriately selected for frequent use. Ball seats must be suitable for natural gas operation of the gas composition indicated.

Valves and fittings subject to corrosion must be either inherently resistant, or be coated with a corrosion inhibiting paint or surface treatment.



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Any accessories required for Odorizer Control Unit and the field unit & interconnection is in the Vendor’s scope. Minimum tapping will be provided of ¾” only. Gas Inlet tapping will be one no. ¾”, more tapping as per the requirements of Vendor can be provided. The necessary Isolation Valves and weld –o- let in vendor’s Scope.

Injector Probe Tapping will be Two no ¾”, necessary Isolation Valves and weld –o- let suitable for the Injector probe is in vendor’s Scope. For any different size, Vendor should considered necessary adopter.

H) HAZARDOUS AREA

The Vendor should specify the hazardous area in accordance with the IS 5572.

All electrical equipment cabling and earthing should be appropriate for the zone in which it is fitted, and all cables passing from the hazardous to safe area should be equipped with appropriate barriers where necessary.

All instruments should be suitable for an area classification of “Class 1, Division 2, Group D as per NEC” OR “Zone 2, Group IIA/IIB as per IS/IEC”.

All Odorizing Unit mounted transmitters & temperature element should be intrinsic safe “exia” as per IEC 79-11 and solenoid valves, switches and related junction boxes should be flame proof “Exd” as per IEC 79-1. All other special equipments / Instruments, where intrinsic safety is not feasible or available, should be flame proof as per IEC 79-1. Flying leads from any of the instrumentation items are not acceptable.

The Electronics of the Odorizing Unit shall not be open and shall be provided within a suitable enclosure.

A complete dossier of all electrical equipment will be provided, showing area classification and certification of equipment.

I) INSTRUMENTS

Vendor shall provide all instruments like Temperature Gauge, Pressure Gauge, differential pressure gauge, level switches, flow switches, etc. as required.

11. INSPECTION AND TESTING

At Vendor’s work:

The following activities shall be covered under inspection:

a) Review of Q.A. documents b) Review of Calibration certificates for Odorizing unit, transmitters, gauges and all

instruments. c) Review of all statutory certificates. d) Review of Area classification compatibility of all the items including bought out

items.



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e) Review of NDT reports. f) Review of bought out sub-assemblies / major components, test / inspection

certificates. g) Dimensional checks as per approved drawing and data sheets. h) Witness the Odorizing Units while tested to demonstrate the functioning of all the

components and controls.

12. TESTING AND COMMISSIONING

The Equipment shall be tested at factory prior to shipment to site, FAT (factory acceptance test) should be carried out to demonstrate the functioning of all equipment trips and control system.

OWNER / OWNER’S REPRESENTATIVE should be given 2 weeks notice of the date and location of the tests so that the equipment may be witnessed if desired.

Upon delivery to the site, all the equipment should be assembled in a complete system. Thereafter, final site acceptance test would be carried out. Such tests shall be conducted, witnessed and signed by the vendor’s representative. The vendor should rectify and replace all defects, faults, failures, etc. and all costs should be borne by Vendor. The costs should include accommodation, travelling, expenses, etc.

13. DATA DETAILS

After the placement of purchase order, & kick off meeting will be held at such date and at such place, as may be mutually agreed upon between the Vendor and the purchaser. The intent of this kick off meeting should be to discuss / clarify various requirements and finalize the modus operandi for execution of the contract within the scheduled delivery period.

Immediately within 2 weeks after placement of order the following documents have to be submitted by Vendor:

a) Process and Instrument Diagram. b) Bill of Material. The bill of Material should indicate all items, quantity of all items,

their part nos. and make. c) General Arrangement Drawing of the Odorizing Unit giving overall dimensions

along with details of inlet gas termination including X, Y, Z co-ordinates with respect to centre of Odorizing Unit or any reference and erection / shipping weight.

d) Data Sheet of Odorizing Unit along with Leaflets / catalogues for all major items. e) Wiring Diagram of Electronic Control Unit. f) Detailed foundation drawing of the Odorizing Unit for casting foundation giving

load pattern etc. g) Shop test procedure.

A Complete electrical Dossier and zone drawings of the Odorizing Unit, all certification for all components used within the hazardous areas should be provided.

Following documents/drawings shall be supplied along with supply of Odorization system:



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a) Operation and maintenance manuals–3 sets all in original pertaining to odorizing unit. The instruction manual should describe in details the construction and recommended procedure for maintaining, operating and trouble shooting of the Odorizing Unit. It should also include cross-sectional drawings, exploded views of all spare parts along with part nos., quantity installed per Odorizing unit. The manual should provide detailed catalogues for all bought out items.

b) 3 Sets of hard copies and 1 set of soft copy in CD-ROM for all the approved drawings and documents shall be included along with supply.

c) Mechanical and electrical installation drawing including interconnection. d) Test certificates and catalogues of all major components like valves, mass flow

meter, tubing etc. e) Calibration certificates for all measuring and protection devices (e.g. Pressure

transducer, pressure gauges, etc.). f) Test records of mechanical running, performance test. g) Complete wiring diagram of Odorizing Unit. h) Software (logic diagram) of Odorizing Units on CD-ROM with suitable

communication Protocol for communication with odorizing Unit in order to change Odorizing Unit parameters, if required.

i) Certificates from statutory authorities confirming suitability of design / construction of all electrical and electronic items for use in hazardous area. In case of foreign supply, the Vendor should get all certificates endorsed by the concerned statutory authorities, Govt. of India within one month of delivery of Odorizing Units at site.

j) One set of relevant software with license valid for 25 years including application program, compatible with Microsoft XP/ 7.0 / 8.0. Necessary adaptor for direct downloading into Laptop if required has to be supplied by the vendor.

14. FUNCTIONAL TEST

All the dispensers shall be tested to demonstrate the functioning of all the components

and controls.

15. AFTER COMMISSIONING AT SITE

Upon delivery to the site, all the equipment should be assembled in a complete system.

All the Odorizing Units shall be tested by vendor for their function & performance in presence of Client / Client’s representative. Any part or component, which is not functioning to the satisfaction of Client, shall be repaired or replaced by the vendor without cost & time implication to purchaser and performance test again carried out.

16. TRAINING REQUIREMENTS

Onsite Training of Purchaser’s Personnel for 1 day for Odorant Handling, Re-filling,

Operation & Maintenance, safety & general educational awareness programme for odorizing, emergency & contingency plans etc of the Odorizing System all inclusive



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rate per day. Training procedure & plan has to be submitted, to be completed before final commissioning and Handing over system to client.

17. WARRANTY SERVICING AND SPARE PARTS

The supplier's shall provide a warranty period of 12 months from the date of final

acceptance of the equipment on installation & commissioning at site.

Contractor’s engineers/ technicians, capable of trouble shooting & looking after the health of the system during the warranty period, shall be made available all through the period of 12 months.

During the Warranty the vendor shall use his own instrument, spares, man-hour, communication facilities, hardware, software, materials, etc. for the rectification of any problem.

In case of failure of any equipment, replacement is send immediately. It is advised that Vendor should keep sufficient spare for warranty support in its stores (designated store to be informed during detailed engineering).

18. PACKAGING

The Odorization system shall be packaged to withstand rough handling during ocean

shipment and in-land journey. It shall be vendor's responsibility to make good any deterioration that occurs during shipment/in-land.

19. ANNUAL MAINTENANCE CONTRACT (AMC):

Vendor shall provide on-site repair & maintenance services for a period as defined in

scope, which includes supply of all the spares required for attending the supplied odorizers without any extra cost implication to Client. Therefore, the vendor shall always keep sufficient quantity of spares in his stock and shall carry them during all the on-site visits to the supplied odorizing system.

SCOPE OF AMC:

(1) First year the AMC will be under warranty (as per tender), comprehensive with all consumables and manpower.

(2) A qualified and experienced services engineers (familiar with the Odorizing system) along with skilled technicians as required shall visit installed stations (as applicable) of Client on the quarterly basis to carry out all the preventive checks as per recommendations of the manufacturer and standard maintenance practice as per the codes as applicable.

(3) Vendor has to carry out health check, calibration, testing etc. including all the subunits of the system.

(4) Service engineer has to submit his preliminary report to Client.



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(5) Vendor has to maintain sufficient stocks of spares for all the systems, sub-systems and shall replace the faulty components or units under comprehensive Annual maintenance. The cost of the same shall be included in the quoted price.

(6) All the consumables also shall be replaced under comprehensive Annual maintenance.

(7) Installation, configuration, testing and commissioning of new software and hardware supplied related to the above system as & when required.

(8) Vendor shall liaison with the statutory authorities for renewal of license of systems as applicable. Client will pay the license fee. Vendor had to bear all the liasoning charges.

(9) Vendor shall depute his engineer within 24 hours after receipt of breakdown call from Client.

(10) Vendor shall attend any no. of breakdown calls within the AMC period. (11) Service engineer shall carry out the health check of the inventory owned by Client

and service person shall advice as required regarding inventory management of spares.

(12) Vendor has to arrange all the testing, diagnostic equipment, software, special tools, hardware required for the successful completion of the job.

(13) Vendor has to provide AMC schedule for a particular year and shall obtain approval from Client.

(14) However, vendor has to obtain clearance from Client before the commencement of each quarterly visit.

(15) Service engineer shall explain the various maintenance methods and procedures to engineers of Client while carrying out the job.

(16) Vendor can use spares available with client during emergency or regular visit. Subsequently vendor has to replace the used spares and should be returned back to client.

(17) Demonstration Once in a year during AMC; the process of deodorizing / neutralising the natural gas in case of venting if required in emergency to client. Any materials / equipments / permissions required during demonstration have to be arranged by the bidder.

TERMS AND CONDITIONS

(1) Vendor had to quote lump sum amount for comprehensive AMC per system inclusive of travel, lodging, boarding, local conveyance, all incidental expenses etc. which shall consists of quarterly visits for preventive maintenance and any no. of breakdown calls.

(2) Vendor has to follow all the safety regulations stipulated by client. (3) Vendor has to comply with all the norms of statutory authorities such as ESIC,

PF, workman’s compensation act etc.



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(4) In exigencies when job demands, service engineer has to work complete the job for extended hours, on holidays, Sundays etc. without any cost implication of client.

(5) Scheduled Visits:- Min. 4 nos. (quarterly maintenance scheduled visits) per year. Emergency Visit: call basis

The Scope shall include following:

A) Compulsory Quarterly maintenance:

1) Leakage Testing: - Checking up of each tubing connections for any leakages

using soap solution. In case any leakage is found, the same to be replaced with spares provided by the vendor.

2) Tubings should be opened, cleaned and reaffixed. 3) Checking up of operation of valves connected to the tank and the Pneumatic

panel/pump. In case of malfunctioning of valve, it shall be changed on chargeable basis by the vendor as per the price list. Vendor has to provide the price list along with offer.

4) Replacement of odorant neutralizing agent (to be supplied by vendor without any extra cost implication to client), if the same are saturated, in the existing system (only if applicable).

5) Checking of all the cable for its joints and any cuts in the cabling exposed to atmosphere. If the joints are loose or there is cut in the cable, then replacing the portion of the cable. (Cable and cable glands to be supplied by the vendor).

6) Cleaning of display parts of PG, LG, etc. Also, replacement of PG and LG in case of any damage or failure on chargeable basis. Vendor has to provide the price list along with offer.

7) Replacement (labour charges) of any item will be free of cost, as required. 8) Checking for corrosion and touch-up painting wherever required. A complete

painting of the system shall be done every year (preferably middle of the year). 9) Checking up the electronic panel, components and cables for its proper

functioning. In case of malfunctioning of the same, it should be repaired. Spares required, if any, shall be provided by the vendor.

10) Checking up of Controller parameters like odorant injection, pump strokes, pump displacement, verometer level, battery voltage, flow signal %, date & temperature or any other parameter. In case of any of these not working properly, it should be checked and problem should be rectified.

11) The mechanical components like solenoid valves, relays, filters etc should be checked and if having any problem, they should be changed.

12) The execution of aforesaid scope of work till completion shall be entirely vendor’s responsibility and regardless of the number of days spent on site, the execution of the scheduled work in total shall be treated as ONE VISIT ONLY.

13) Any other work not mentioned herein, however required for proper repair and maintenance and smooth functioning of odorizing system, shall be done by vendor to the satisfaction of client.

B) On-call basis/Emergency visit:



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This shall include any repair service provided on call of breakdown from client other than the contractual scheduled maintenance. The spares are to be provided by the vendor without any extra cost implication to CLIENT.



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20. ANNEXURE-1 (DATA SHEET)

(A) PROCESS PARAMETERS & SYSTEM DESIGN:-

1. Flow Rate of Natural Gas (SCMH) Min. 5000 SCMH Max. 25000 SCMH (Above data may vary)

2. Operating Pressure at Dosing Point 11 to 40 bar

3. Maximum Gas Pressure at Injection Point

49 bar (Maximum)

4. Design Pressure 49 Bar

5. Main Header manifold size * 6. Main Gas Line *

7. Operating Principle Proportional Dosing System with Gas Operated pump

8. Odorant Injection rate To be adjusted automatically proportional to flow rate using 4 to 20 mA signal from Electronic Control Unit

9. Operating Temperature Suitable for installation in open atmospheric conditions at ambient temp. of -5°C to 60°C

10. Odorant Concentration Rate 5 - 40 PPM Actual use of odorant monitored using an on-line separate calibration device (Verometer)

11. Gas Odorant Ethyl Mercaptan/ THT(Tetrahdrothiophene)

12. Power Supply UPS : 230 V AC, 50 Hz, Single Phase.

13. Pneumatic Panel with Cabinet Electrical components in Hazardous Area

Installed in hazardous area. Eexd IIC T4 Intrinsically safe

14. No. of Injection Units required Dual Stream with complete standalone (1 W+1 S)

15.

Electronic Control Unit

To be installed in safe area, with RS 485communication port, printer port & provision forremote connectivity and lockable. Software toconfigure the odorizing system. Battery backup formemory to maintain configuration data in the eventof power failure. The electronic enclosures shall beconstructed such that system operation data may beread without opening the electronics enclosure.

Protection class IP 65 / NEMA4

Display Back lit Alphanumeric LCD display

Operating Modes Manual / Automatic



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16. Storage tanks and accessories Odorant tank shall be constructed to ASME SEC VIII Div.1 specifications. The tank shall have all valves necessary for proper filling, as well as level gauge with magnetic float for volume indication, pressure relief, and pressure gauges with remote access of all. The odorant tank shall be made of SS 304 or of higher grade and min. thickness shall be 8 mm.

17. Tubing between Odorant Tank and System

SS 316

18. Emergency Provision Automatically continue Odorization if main odorizing system stops due to power / control unit failure.

19. System Features In case of power / control unit failure, system to continue dozing at constant flow rate, till the power supply resumes

20. Odorant Filter (installed in the suction pipe before the proportioning pump)

Required

(B) SYSTEM SPECIFICATIONS: -

21. Measurement Interfacing Equipment (Meter to Odorizer)

The system shall be capable of accepting either an analog input proportional to the flow rate, or a pulse input proportional to the flow rate.

22. System Mounting

System enclosure will be corrosion resistant and weather tight, with a secure locking system. Enclosure shall have field connections for flow signal, alarm, and communications in 1/2" conduit, chemical in and out, actuation gas and exhaust

23. Containment Skid Can contain volume 110% of the capacity of odorant storage tank.

24. Scrubber

A scrubber must be installed in Gas/Vapour vent line, to ensure odor is in control during venting. Activated carbon should not be used as scrubbing agent.

25. Controller

The controller shall have provision for programming desired injection rate in mg/SCMH

The controller shall have automatic monitoring of system functions and have the capability to alarm in case of system malfunction. This alarm system will monitor flow signal, power



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supply, the volume verification system, and the injection pump. The information from the controller can be accessed via a communication cable (RS 485 etc.)

The controller shall monitor system performance, and display locally, in a continuous scrolling manner, the following information:

time between strokes

odorant volume injected (resettable)

total injections(resettable)

odorant volume/stroke

odorant meter level

current pipeline flow rate in %

current odorant temperature

alarm conditions

Contract outputs shall be present for system alarm, as well as odorant volume injected, with a high resolution.

The System should have facility to monitor actual use of odorant compensated for temperature variation.

The system controller shall utilize the real time odorant measurement capability to automatically change the injection frequency to compensate for changes in pump discharge volume due to wear. This compensation shall be operable to +/- 30% of intended injected volume per injection.

(C) PUMP SPECIFICATIONS: -

26. Type and MOC

The system shall utilize a positive displacement style pump that is constructed entirely of 316 stainless steel. The pump shall have a displacement volume that is adjustable.

27. Design

The pump shall be designed such that the actuation mechanism is not in contact with the odorant. The pump shall have inlet and outlet check valves which



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are designed to be accessible and may be removed and replaced easily without the removal of any tubing or piping. The pump shall be capable of operation at a maximum rate.

28. Capacity and Rating

The pump shall be capable of operation at a maximum rate. The pump shall be capable of a maximum discharge pressure of 99 Bar.

Vendor must indicate the normal gas consumption per stroke at 50 psi supply.

(D) LEVEL GAUGE SPECIFICATIONS: -

29. Type A magnetic flapper assembly type level gauge shall be required.

30. Float type

Position of the float inside the chamber to be indicated outside by bicolored flappers embedded with magnet by 180 Deg rotation and setting into uniform colour along the traverse of the float.

31. Level switch Appropriate level switch to be provided for remote access for knowing the level of the odorant tank.

32. End connection

Level gauge should be welded to the end connections provided in the odorant tank. Level gauge should be closed at both ends and should be connected to the odorant tank at both top and bottom.

33. MOC of float chamber MOC of the float chamber should be SS 304 or of higher grade.



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21. ANNEXURE : 2: QAP FOR ODORIZATION UNIT SYSTEM

SR. No

DESCRIPTION

TYPE OF CHECK

QUANTUM OF CHECK

REF. DOC.

ACCEPTANCE NORMS

DOCUMEN- TATION

INSPECTION

REMARKS

MANUF.

TPI GGL

1 ODORANT STORAGE TANK

1.1 Chemical composition of Material

Review of MTC

100% MTC by supplier

Chemical composition as per standard material-SS 304

MTC R R

1.2 Hydrostatic Test at 3.9 kg/cm²(Barg)

Performance Check

100%

ASME SEC VIII Div 1 edition 2013

No leakage to be observed from the tank

Inspection Report

P W

1.3 Dye Penetrant test at Vendor's premises

Performance Check

100%

ASME Sec V Edition 2013-Article 6

No leakage to be observed from the tank

Inspection Report

P W

2 PRESSURE RELIEF VALVE

2.1 Review of Test Certificate

Review of MTC

100% API 520

Chemical composition of PRV as per API-520

MTC R R

2.2 Crack Pressure Test

Performance Check

100% API 520

Set cracking pressure @ 3.8 barg

Inspection Report

P W

3 LEVEL INDICATOR

3.1

Review of Test Certificate

Review of MTC

100%

Chemical composition as per standard

MTC R R

4 PRESSURE GAUGE



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4.1 Calibration Certificate

Review of Calibration certificate

100%

Calibration certificate

R R

5 PRESSURE REGULATOR


Review of MTC

100% EN 10204

Chemical composition as per EN 10204

MTC R R

5.2 Set Pressure Test Performance Check

100% EN 10204

Inspection Report

P W

6 Tubing's & Tube Fittings


Review of MTC

100%

ASTM A629

Chemical composition as per ASTM A629

MTC R R

7 Valves


Review of MTC

100%

ASTM-A-479

Chemical composition as per ASTM-A-479

MTC R R

8 Flame Arrestor


Review of MTC

100%

Chemical composition as per standard

MTC R R

8.2 Leakage Test at 6 Barg

Review of report by vendor

100%

API 2000 6th edition, Testing standard EN-

Testing standard EN-12874

Inspection Report

R R



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12874

7 Performance of complete odorizing unit

Performance check

100%

Performance test in AUTO mode against back pressure of 40 Barg with respect to 4-20mA signal at 8, 12, 16 & 20 mA with simulator.

Performance test report

P W

NOTE: Above QAP is for indicative purpose only. On issuance of work order, vendor should

furnish compliance of this QAP.



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22.0 ANNEXURE-3 - LIST OF RECOMMENDED TPI AGENCIES

S.NO NAME OF TPI AGENCY

1 Tata Projects Ltd.

2 Indian Register of Shipping

3 Bax counsel Insepection Bureau Pvt. Ltd.

4 Bureau VeritasQl

5 Germanischer Lloyd

6 Velosi Certification Serrvices,Mumbai

7 ABS Industrial Verification Ltd., Mumbai

8 Certification Engineers International Ltd.

9 Dalal Mott MacDonald

10 International Certification Systems

11 SGS

SPECIFICATION FOR HEALTH, SAFETY AND ENVIRONMENT (HSE) MANAGEMENT AT CONSTRUCTION SITES

GGL-CNG-GN-DOC-HS-001

0 10.10.2017 Issued for Review SC SB HM

Rev Date Purpose Prepared

By Checked

By Approved

By

HSE MANAGEMENT AT CONSTRUCTION SITES


Doc No. Rev

GGL-CNG-GN-DOC-HS-001 0

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1.0 SCOPE

This specification establishes the health, Safety and environment (HSE) management requirement to be complied by Contractors during construction.

Requirements stipulated in this specification shall supplement the requirements of HSE management given in relevant Act (s)/legislations, General Conditions of Contract (GCC), Special Conditions of Contract (SCC) and Job (Technical) Specifications. Where different documents stipulate different requirements, the most stringent shall apply.

2.0 REFERENCES The document should be read in conjunction with following: - General Conditions of Contract (GCC)

Special Conditions of Contract (SCC) Building and other construction workers (regulation of employment and condition of service) Act,1996 Job (Technical) specifications Relevant IS Codes Statutory requirements

3.0 REQUIREMENTS OF HEALTH, SAFETY & ENVIRONMENT (HSE) MANAGEMENT SYSTEM TO BE COMPLIED BY BIDDERS

3.1 MANAGEMENT RESPONSIBILITY

3.1.1 HSE Policy & Objectives

The Contractor should have a documented HSE policy & objectives to demonstrate commitment of their organization to ensure health, safety and environment aspects in their line of operations.

3.1.2 Management System

The HSE management system of the Contractor shall cover the HSE requirements including but not limited to what is specified under para 1.0 and para 2.0 above.

3.1.3 Indemnification

Contractor shall indemnify & hold harmless Owner/Consultant & their representatives free from any and all liabilities arising out of non-fulfilment of HSE requirements.

3.1.4 Personnel deployment

Contractor as a minimum requirement shall designate/deploy the following persons at site: a) Up to 250 persons - Designate one safety supervisor deployed by him at site b) For 251 to 500 persons - Deploy one qualified &



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\Experienced safety Engineer/Office in addition to Deployed by him at site the Safety Supervisor as described in (a) above. c) For more than 500 persons - Deploy an additional Safety Engineer/ Officer for every 500 Persons or part deployed by him at site thereof, in addition to (b) above. No work will be started at site until above safety personnel are mobilized at site. The contractor shall submit a safety organogram clearly indicating the lines of responsibility, reporting system and furnish Bio-Data/Resume/Curriculum Vitae with contact details of the safety personnel he intends to mobilize, at least 1 moth before the intended mobilization.

3.1.5 Implementation & Monitoring

Contactor shall be fully responsible for planning, implementing and monitoring all HSE requirements and compliance of all laws & statutory requirements. The Contractor shall also ensure that the HSE requirements are clearly understood & faithfully implemented at all levels at site.

3.1.6 Awareness

The Contractor shall promote and develop consciousness about Health, Safety and Environment among all personnel working for the Contractor. Regular awareness programs and fabrication shop/work site meetings shall be arranged on HSE activities to cover hazards involved in various operations during construction.

3.1.7 Fire prevention & First-aid

The contractor shall arrange suitable first aid measures such as First Aid Box, trained personnel to administer First Aid, stand-by ambulance or vehicle and install fire protection measures such as: adequate number of steel buckets with sand & water and adequate number of appropriate fire extinguishers to the satisfaction of OWNER/CONSULTANT.

3.1.8 Documentation

The contractor shall evolve a comprehensive, planned and documented system for implementation and monitoring of the HSE requirements. This shall be submitted to OWNER/CONSULTANT for approval. The monitoring for implementation shall be done by regular inspections and compliance to the observations thereof. The Contractor shall get similar HSE requirements implemented at his sub-contractor(s) work site/office. However, compliance of HSE requirements shall be the responsibility of the Contractor. Any review/approval by OWNER/CONSULTANT shall not absolve contractor of his responsibility/liability in relation to all HSE requirements.

3.1.9 Audit



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Non-Conformances on HSE by Contractor (including his sub-contractors) as brought out during review/audit by his internal audit team as well as OWNER/Consultant’s representative shall be resolved forthwith by Contractor. Compliance report shall be submitted to OWNER/CONSULTANT.

3.1.10 Meetings

The Contractor shall ensure participation of his top most executive at site (viz. Resident Engineer/Site-in-Charge) in Safety committee/HSE Committee meetings arranged by OWNER/CONSULTANT. The compliance of any observations during the meeting shall be arranged urgently. He shall assist OWNER/CONSULTANT to achieve the targets set by them on HSE during the project implementation.

3.1.11 The Contractor shall adhere consistently to all provisions of HSE requirements. In case of

non-compliance or repeated failure in implementation of any of the HSE provisions; OWNER/CONSULTANT may impose stoppage of work without any cost & time implication to the Owner and/or impose a suitable penalty, up to a cumulative limit of 1.0% (one percent) of the contract value with a ceiling of Rs.10 lacs (Rupees Ten Lacs only). This penalty shall be in addition to all other penalties specified elsewhere in the contract. The decision of imposing stoppage work, its extent and penalty shall rest with OWNER/CONSULTANT. The same shall be binding on the Contractor. The penalty does not make the contractor eligible to continue the work in unsafe manner.

3.2 HOUSE KEEPING

3.2.1 Contractor shall ensure that a high degree of house keeping is maintained and shall ensure

interalia; the following:

All surplus earth and debris are removed/disposed off from the working areas to identified location(s). Unused/surplus cables, steel items and steel scrap lying scattered at different places within the working areas are removed to identified location(s). All wooden scrap, empty wooden cable drums and other combustible packing materials, shall be removed from work place to identified location(s). Roads shall be kept clear and materials like pipes, steel, sand, boulders, concrete, chips and bricks etc. shall not be allowed on the roads to obstruct free movement of men & machines. Fabricated steel structural, pipes & piping materials shall be stacked properly for erection.Water logging on roads shall not be allowed. No parking of trucks/trolleys, cranes and trailors etc. shall be allowed on roads, which may obstruct the traffic movement. Utmost care shall be taken to ensure over all cleanliness and proper upkeep of the working areas. Trucks carrying sand, earth and pulverized materials etc. shall be covered while moving within the plant area/or these materials shall be transported with top surface wet. The contractor shall ensure that the atmosphere in plant area and on roads is free from particulate matter like dust, sand, etc. by keeping the top surface wet for ease in breathing. At least two exits for any unit area shall be assured at all times.

3.3 HSE MEASURES

3.3.1 Construction Hazards

Contractor shall ensure that during the performance of the work, all hazards have been identified, assessed and eliminated.



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A list of construction hazards along with their effects & preventive measures is given in the Annexure-V.

3.3.2 Accessibility

The Contractor shall provide safe means of access to any working place including provisions of suitable and sufficient scaffolding at various stages during all operations of the work for the safety of his workmen and OWNER/CONSULTANT.

3.3.3 Personal Protective Equipments (PPEs)

The contractor shall ensure that all their staff and workers including their sub-contractor(s)’s have been issued & wear appropriate PPEs like safety helmets, safety shoes, safety belt, full body harness, protective goggles, gloves etc. All these gadgets shall conform to applicable IS Specifications/CE or other applicable international standards. For shot blasting, the usage of protective helmets (approved by the competent authority), gauntlet and protective clothing is mandatory. For offshore contracts, contractor shall provide PPEs (new) to CONSULTANT & Owner’s personnel at his (contractor’s) cost. All personnel shall wear life jacket at all time.

3.3.4 Working at height

The contractor shall issue height permit for working above 3 meters height after verifying and certifying the checkpoints as specified in the attached permit. He shall also undertake to ensure compliance to the conditions of the permit during the currency of the permit including adherence to personal protective equipments. The permit shall be issued initially for one week or expected duration of an activity and extended further for the balance duration. This permit shall be applicable in areas where specific clearance from Owner’s operation Department/Safety Department is not applicable. CONSULTANT field Engineers/Safety Officers/Area Coordinators may verify and sign this permit during the execution of the job. In case work is undertaken without taking sufficient precautions as given in the permit, CONSULTANT Engineers may cancel the permit and strop the work till satisfactory compliance is arranged. Contractors are expected to maintain a register for issuance of permit and extensions thereof including preserving the used permits for verification during audits etc. Contractor shall arrange (at his cost) and ensure sue of Fall Arrester Systems by his workers. Fall arresters are to be used while climbing tall structures. These arresters should lock automatically against the anchorage line, restricting free fall of the user. The device is to be provided with a double security opening system to ensure safe attachment or release of the user at any point of rope. In order to avoid shock, the system should be capable of keeping the person in vertical position in case of a fall. Contractor shall ensure that Life Lines are used by all personnel while working at height. One end of the life line shall be firmly tied with the worker and the other end with a fixed and rigid structure. The life line should be strong enough to take the load of the worker in case of a fall.



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Contractor shall provide Roof Top Walk ladders for carrying out activities on sloping roofs in order to reduce the changes of slippages. Contractor shall ensure that a proper Safety Net System is used wherever the hazard of fall from height is present. The safety net shall be located not more than 9.0 meters below the working surface extending on either side up to sufficient margin to arrest or to reduce the consequences of a possible fall of persons working at different heights.

3.3.5 Electrical installations

The contractor shall ensure that electrical systems and equipment including tools and tackles are properly selected, installed, used and maintained. The contractor shall deploy qualified and licensed electricians for proper and safe installation and for regular inspection of construction power distribution lines/points including their earthing. A copy of the license shall be submitted to CONSULTANT for records.

3.3.6 Welding/Gas cutting

Contractor shall ensure that flash back arresters conforming to BS: 6158 or equivalent are installed on all gas cylinders while in use. All cylinders shall be mounted on trolleys. All welding machines shall have effective earthing. To eliminate radiation hazard, Tungsten electrodes used for Gas Tungsten Arc Welding shall not contain Thorium.

3.3.7 Ergonomics and tools & tackles

The Contractor shall assign to his workmen, tasks commensurate with their qualification, experience and state of health. All lifting tools, tackles, equipment, accessories including cranes shall be tested periodically by statutory/competent authority for their condition and load carrying capacity. Valid test and fitness certificates from the authority shall be submitted to Owner/CONSULTANT for their review/acceptance before the lifting tools, tackles, equipment, accessories and cranes are used. Contractor shall ensure installation of Safe Load Indicator (SLI) on all cranes (while in use) to minimize overload risk. SLI shall have capability to continuously monitor and display the load on the hook, and automatically compare it with the rated crane capacity at the operating condition of the crane. The system shall also provide visual and audible warnings at set capacity levels to alert the operator in case of violations.

3.3.8 Occupational Health

The contractor shall identify all operations that can adversely affect the health of its workers and issue and implement mitigation measures. For surface cleaning operations, sand blasting shall not be permitted even if not explicitly stated elsewhere in the contract.

3.3.9 Hazardous substances

Hazardous and/or toxic materials such as solvent coating or thinners shall be stored in appropriate containers, which shall be labeled with the name of the materials, the hazards associated with its use and necessary precautions to be taken.



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Where contact or exposure of hazardous materials/Noise pollution exceeds the specified limit or otherwise have harmful affects, appropriate personal protective equipments such as gloves, earmuffs, goggles, aprons, chemical resistant clothing, respirator, etc. shall be used.

3.3.10 Spills

Chemical and other spills shall be contained and cleaned up immediately to prevent further contamination.

3.3.11 Radiation exposure

a) All personnel exposed to physical agents such as non-ionizing radiation,

ultraviolet rays or similar other physical agents shall be provided with adequate shielding or protection commensurate with the type of exposure involved.

b) For ionizing radiation, requirements of Bhabha Atomic Research Centre (BARC) shall be followed.

3.3.12 Road Safety

The contractor shall ensure adequately planned road transport safety management system. The vehicles shall be fitted with reverse warning alarms. The contractor shall also ensure a separate pedestrian route for safety of the workers and comply with all traffic rules and regulations. For pipeline jobs, the contractor shall submit a comprehensive plan covering transportation of pipes, movement of side booms, movement of vehicles on the ROW, etc.

3.3.13 Welfare measures

Contractor shall at the minimum, ensure the following facilities at work sites :

A crèche where 10 or more female workers are having children below the age of 6 years.

Reasonable canteen facilities at appropriate location depending upon site conditions.

Rest rooms (separate for male workers and female workers) Toilets, drinking water, adequate lighting at site and labour camps, commensurate with

applicable Laws/Legislation.

3.3.14 Environment Protection

Contractor shall ensure proper storage and utilization methodology of materials that are detrimental to the environment. Where required, contractor shall ensure that only the environment friendly materials are selected and emphasize on recycling of waste materials such as metals, plastics, glass, paper, oil and solvents. For pipeline jobs, top soil shall be stacked separately while making ROW through fields. This fertile soil shall be placed back on top after backfilling.

3.3.15 Rules & Regulations

All persons deployed at site shall be knowledgeable of and comply with the environmental laws, rules and regulations relating to the hazardous materials, substances and wastes.



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Contractor shall not dump, release or otherwise discharge or dispose off any such materials without the express authorization of OWNER/CONSULTANT.

3.4 TOOL BOX MEETING (TBM)

Contractor shall conduct daily TBM with workers prior to start of work and shall maintain proper record of the meeting. A suggested format is given below. The TBM is to be conducted by the immediate supervisor of the workers.

TOOL BOX MEETING RECORDING SHEET

Date & Time Subject Presenter Hazards Involved Precautions to be taken Worker’s Name Signature Section Remarks, if any

The topics during TBM shall include:

Hazards related to work assigned on that day and precautions to be taken. Any forthcoming HSE hazards/events/instruction/orders, etc.

The above record can be kept in local language, which workers can read. These records shall be made available to OWNER/CONSULTANT whenever demanded.

3.5 TRAINING

Contractor shall ensure that all his personnel possess appropriate training to carryout the assigned job safely. The training should be imparted in a language understood by them and should specifically be trained about.

Potential hazards to which hey may be exposed at their workplace Measures available for prevention, recurrence and elimination of these hazards

The topics during training shall cover, at the minimum:

Education about hazardous jobs and precautions required Emergency and evacuation plan HSE requirements Fire fighting and First-Aid Use of PPEs

Records of the training shall be kept and submitted to OWNER/CONSULTANT whenever demanded. For off-shore and jetty jobs, contractor shall ensure that all personnel deployed have undergone structured training on swimming, use of lifeboats, basket landing, etc.



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3.6 INSPECTION/AUDIT

The contractor shall carry out daily HSE inspection and record observations at a central location. These inspection records shall be freely accessible to Owner/CONSULTANT representatives. He shall also carry out internal HSE audits as well as cooperate during HSE audits by Owner/CONSULTANT, which will be at least two times during the project execution period.

4.0 DETAILS OF HSE MANAGEMENT SYSTEM BY CONTRACTOR

4.1 ON AWARD OF CONTRACT

The Contractor shall submit a comprehensive Health, Safety and Environment manual or procedure and HSE Plans for approval by OWNER/CONSULTANT prior to start of work. The Contractor shall participate in the pre-start meeting with OWNER/CONSULTANT to finalize HSE Plans including the following:

Job procedure to be followed by Contractor for activities covering handling of equipments, scaffolding, electric installations, etc. describing the risks involved, actions to be taken and methodology for monitoring each activity. OWNER/CONSULTANT review/audit requirement. Organization structure along with responsibility and authority, records/reports etc. on HSE activities. Procedures for reporting and investigation of accidents and near misses HSE Training programmes. Reference to Rules, Regulations and Statutory requirements. HSE reports.

4.2 DURING JOB EXECUTION

4.2.1 Contractor shall implement approved Health, Safety and Environment management procedure/plan/manual including but not limited to as brought out under Para 3.0. Contractor shall also ensure :

to arrange workmen compensation insurance, registration under ESI Act, third party liability insurance etc., as applicable to arrange all HSE permits before start of activities (as applicable), like permits for hot work, confined space, working at heights, storage of chemical/explosive materials and its use and implement all precautions mentioned therein. In this regard, requirements of Oil industry Safety Directorate Standard No. Std-105 “Work Permit Systems” shall be complied with while working in existing plants.

to submit, timely, the completed checklist on HSE activities Monthly HSE report, accident reports, investigation reports etc. as per OWNER/CONSULTANT requirements. Compliance of instructions on HSE shall be done by Contractor and informed urgently to OWNER/CONSULTANT.

That his top most executive at site attends all the Safety Committee/HSE meetings arranged by OWNER/CONSULTANT. Only in case of his absence from site that a second senior most



Doc No. Rev


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person shall be nominated by him, in advance, and communicated to OWNER/CONSULTANT.

Display at site office and work locations caution boards, list of hospitals, emergency services available, etc.

Provide posters, banners for safe working to promote safety consciousness.

Assess, analyze and mitigate the construction hazards. Carryout audits/inspection at his works as well as sub contractor works as per approved HSE document and submit the reports for OWNER/CONSULTANT review. Assistance and cooperation during HSE audits by OWNER/CONSULTANT, and submit compliance report. Generation and submission of HSE records/report as per HSE Plan. And this specification. Apprise OWNER/CONSULTANT on HSE activities at site. Carryout all dismantling activities safely, with prior approval of OWNER/CONSULTANT representative.

1.0 RECORDS

The contractor shall maintain/submit HSE records in the following reporting formats: 1. Monthly HSE checklist cum compliance report Accident/Fire report Supplementary Accident & Investigation report 2. Monthly HSE report 3. Permit for working above 3 mete height 4. HSE Plan

IS – CODES FOR HSE

SP:53 Safety code for the use, Care and protection of hand operated tools.IS: 816 Code of practice for safety and health requirements in electric and

gas welding and cutting operationsIS: 1179 Eye and Face precautions during welding, equipment etc. IS: 1860 Safety requirements for use, care and protection of abrasive

grinding wheels.IS: 1989(Part–I & II)

Leather safety boots and shoes

IS: 2925 Industrial Safety HelmetsIS: 3016 Code of practice for fire safety precautions in welding and cutting

operations.IS: 3043 Code of practice for earthing.IS: 3521 Industrial Safety belts and harness.IS: 3738 Rubber boots.IS: 3996 Safety Code of scaffolds and ladders.IS: 4770 Rubber gloves for electrical purposesIS: 5216 (Part-I Recommendations on Safety procedures and practices in electrical

works IS: 5557 Industrial and Safety rubber lined boots.IS: 5983 Eye protectorsIS:6519 Selection, care and repair of Safety footwearIS: 6994 (Part-I) Industrial Safety Gloves (Leather & Cotton Gloves)



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IS: 7293 Safety Code for working with construction Machinery IS: 9167 Ear protectorsIS: 11006 Flash back arrestor (Flame arrestor)IS:11016 General and safety requirements for machine tools and their

operation IS: 11226 Leather safety footwear having direct moulded rubber sole IS: 11972 Code of practice for safety precaution to be taken when entering a

sewerage systemIS: 13367 Code of practice-safe use of cranesIS: 13416 Recommendations for preventive measures against hazards at

working place



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ANNEXURE - II

DETAILS OF FIRST AID BOX SL.NO.

DESCRIPTION QUANTITY

1. Small size Roller Bandages, 1 inch wide (Finger Dressing small)

6 Pcs.

2. Medium size Roller Bandages, 2 inch wide (Hand and Foot Dressing)

6 Pcs.

3. Large size Roller Bandages, 4 inch wide (Body Dressing Large)

6 Pcs.

4. Large size Burn Dressing (Bun Dressing Large) 4 Pkts. 5. Cotton wool (20 gms packing) 4 Pkts. 6. Antiseptic Solution Dettol (100 ml.) or Savalon 1 Bottle 7. Mercurochrome Solution (100 ml.) 2% in water 1 Bottle 8. Sal-volatile (20 ml. Ammonia) 1 Bottle 9. A Pair of Scissor 1 Piece 10. Adhesive Plaster (1.25 cm x 5 m) 1Spool 11. Eye pads in Separate Sealed Packet 4 Pcs. 12. Tourniquet 1 No. 13. Safety Pins 1 Dozen 14. Tine IODINE (100 ml.) 1 Bottles 15. Ointment for burns (Burnol 20 gms.) 1 Bottole 16. Polythene Wash cup for washing eyes 1 No. 17. Potassium Permanganate (20 gms.) 1 Pkt. 18. Tinc. Benzoine (100 ml.) 1 Bottole 19. Triangular Bandages 2 Nos. 20. Band Aid Dressing 5 Pcs. 21. Iodex (25 gms.) 1 Bottole 22. Tongue Depressor 1 No. 23. Boric Acid Powder (20 gms.) 2 Pkt. 24. Sodium Bicarbonate (20 gms.) 1 Pkt. 25. Dressing Powder (Nebasulf) (10 gms.) 1 Bottole 26. Medicinal Glass 1 No. 27. Duster 1 No. 28. Booklet (English & Local Language) 1 No. each 29. Soap 1 No. 30. Toothache Solution 1 No. 31. Eye Ointment 1 Bottle 32. Vicks (22 gms.) 1 Bottle 33. Forceps 1 No. 34. Cottom Buds (5 nos.) 1 Pkt. 35. Note Book 1 No. 36. Splints 4 Nos. 37. Lock 1 Piece 38. Life Saving/Emergency/Over-the Counter Drugs As decided at site NOTE : Type of Box

Size Aluminum 14” x 12” x 4”



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Annexure-III

TYPES OF FIRE EXTINGUISHERS AND THEIR APPLICATION

CARBON

DIOXIDE

DRY CHEMICAL WATER TYPE FOA

M

SODIUM POTASSIUM MULTI PURPOSE

BICARBONATE A B C

CO2 CARTRIDGE OPERATED

STORED PRESURE

STORED PRESSURE

CARTRIDGE

OPERATED

STORED PRESSUR

E

CARTRIDGE

OPERATED

WATER PUMP TANK

SODA

ACID

FOAM

CLASS A FIRES x X x _/ _/ _/ _/ _/ _/ _/WOOD PAPER TRASH HAVING GLOWING EMBERS

(BUT CAN CONTROL MINOR

SURFACE FIRES) CLASS B FIRES _/ _/ _/ _/ _/ X X X X _/FLAMMABLE

LIQUIDS GASOLINE OIL PAIN

GRASE ETC. CLASS C FIRES _/ _/ _/ _/ _/ X X X X XELECTRICAL EQUIPMENT

LEGEND : _/ : CAN BE USED

X : NOT TO BE USED



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ANNEXURE-IV

INDICATIVE LIST OF STATUTORY ACTS & RULES

Indian Explosives Act, 1984 The Motor Vehicles Act, 1988 The Factories Act, 1949 The Petroleum Act, 2002 Workmen Compensation ‘act Static/Mobile Pressure Vessel Act Indian Electricity Act Indian Boiler Act, 1923 Water (Prevention & Control Pollution) Act, 1974 Water (Prevention & Control of Pollution) Cess Act-1977 The Mines & Minerals (Regulation & Development) Act-1947 The Air (Prevention & control of Pollution) Act-1981 The Atomic Energy Act-1962 The Radiation Protection Rules-1971 The Indian Fisheries Act-1954 The Indian Forest Act-1927 The Wild Life (Protection) Act-1972 The Environment (Protection) Act-1986 The Environment (Protection) Rules-1986 The Hazardous Wastes (Management & Handling) Rules-1989 The Manufacture, Storage & Import of Hazardous Chemicals Rules-1989 The Central Motor Vehicles Rules-1989 The Building and Other Construction Workers (Regulation of Employment and Condition of Service) Act, 1996



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ANNEXURE-V

CONSTRUCTION HAZARDS, THEIR EFFECTS & PREVENTIVE MEASURES

ACTIVITY TYPE OF

HAZARD EFFECT OF

HAZARD PREVENTIVE MEASURES

(A) EXCAVATION Pif

Excavation up to 3.0m

Falling into pit

Personal injury

Provide guard rails/barricade with warning signal.

Provide at least two entries/exits.

Provide escape ladders. Earth

Collapse Suffocation/

Breathlessness

Buried

Provide suitable size of shoring and strutting, if required.

Keep soil heaps away from the edge equivalent to 1.5m or depth of pit whichever is more.

Don’t allow vehicles to operate too close to excavated areas. Maintain at least 2m distance from edge of cut.

Maintain sufficient angle of repose. Provide slope not less than 1:1 and suitable bench of 0.5m width at every 1.5m depth of excavation in all soils except hard rock.

Battering/benching the sides.

Contact with buried electric cables

Gas/Oil Pipelines

Electrocution

Explosion

Obtain permission from competent authorities, prior to excavation, if required.

Locate the position of buried utilities by referring to plant drawings.

Start digging manually to locate the exact position of buried utilities and thereafter use mechanical means.

Pit Excavation beyond 3.0m

Same as above plus

Flooding due to excessive

Can cause drowning situation

Prevent ingress of water Provide ring buoys Identify and provide

suitable size dewatering pump or well point system



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ACTIVITY TYPE OF HAZARD

EFFECT OF HAZARD

PREVENTIVE MEASURES

rain/ underground water

Digging in the vicinity of existing Building/Structure

Building/Structure may collapse

Loss of health & wealth

Obtain prior approval of excavation method from local authorities

Use under-piping method Construct retaining wall

side by side Movemen

t of vehicles/ equipments close to the edge of cut.

May cause cave-in or slides

Persons may get buried

Barricade the excavated area with proper lighting arrangements

Maintain at least 2m distance from edge of cut

Strengthen shoring and strutting

Narrow deep excavations for pipelines, etc.

Same as above plus

Frequent cave-in or slides

May cause severe injuries or prove fatal

Battering/benching of sides Provide escape ladders

Flooding due to Hydro testing

May arise drowning situation

Same as above plus Bail out accumulated water Maintain adequate

ventilation Rock

excavation by blasting

Improper handling of explosives

May prove fatal

Ensure proper storage, handling & carrying of explosives by trained personnel.

Comply with the applicable explosive acts & rules.

Uncontrolled explosion


Allow only authorized persons to perform blasting operations.

Smoking and open flames are to be strictly prohibited.

Scattering of stone pieces in atmosphere

Can hurt people

Use PPE like goggles, face mask, helmets etc.

Rock excavating by blasting (Contd)

Entrapping of persons/animals.


Barricade the area with red flags and blow siren before blasting.

Misfire May explode suddenly

Do not return to site for at least 20 minutes or unless announced safe by



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EFFECT OF HAZARD

PREVENTIVE MEASURES

designated person. Piling Work Failure of

pile-driving equipment

Can hurt people

Inspect Piling rigs and pulley blocks before the beginning of each shift.

Noise pollution

Can cause deafness and psychological imbalance.

Use personal protective equipments like ear plugs, muffs, etc.

Extruding rods/casing

Can hurt people

Barricade the area an install sign boards

Provide first-aid Working

in the vicinity of ‘Live-Electricity’

Can cause electrocution/ asphyxiation

Keep sufficient distance from Live-Electricity as per IS code.

Shut off the supply, if possible

Provide artificial/rescue breathing to he injured.

(B) CONCRETING

Air pollution by cement

May affect Respiratory System

Wear respirators or cover mouth and nose with wet cloth.

Handling of ingredients

Hands may get injured

Use gloves and other PPE.

Protruding reinforcement rods.

Feet may get injured

Use Safety shoes. Provide platform above

reinforcement for movement of workers.

Earthing of electrical mixers, vibrators, etc. not done

Can cause electrocution/ asphyxiation

Ensure earthing of equipments and proper functioning of electrical circuit before commencement of work.

Falling of materials from height

Persons may get injured

Use hard hats Remove surplus material

immediately from work place

Ensure lighting arrangements during night hours.

Continuous pouring by same gang

Cause tiredness of workers and may lead to

Insist on shift pattern Provide adequate rest to

workers between subsequent pours.



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EFFECT OF HAZARD

PREVENTIVE MEASURES

accident. Revolving

or concrete mixer/ vibrators

Parts of body or clothes may get entrapped.

Allow only mixers with hopper

Provide safety cages around moving motors

Ensure proper mechanical locking of vibrator

Super-structure

Same as above plus

Deflection in props or shuttering material

Shuttering/props ma collapse and prove fatal

Avoid excessive stacking on shuttering material

Check the design and strength of shuttering material before commencement of work

Rectify immediately the deflection noted during concreting

Passage to work place

Improperly tied and designed props/planks may collapse

Ensure the stability and strength of passage before commencement of work

Do not overload and stand under the passage

(C) REINFORCEMENT

Curtailment and binding of rods

Persons may get injured

Use PPE like gloves, shoes, helmets, etc.

Avoid usage of shift tools

Carrying of rods for short distance/at heights

Workers may get injured their hands and shoulders.

Provide suitable pads on shoulders and use safety gloves

Tie up rods in easily liftable bundles

Ensure proper staging. Checking

of clear distance/cover with hands

Rods may cut or injure the finger

Use measuring devices like tape, measuring rods, etc.

Hitting projected rods and standing on cantilever rods

Persons may get injured and fell down

Use safety shoes and avoid standing unnecessarily on cantilever rods

Avoid wearing of loose clothes

Falling of material from height

May prove fatal

Use helmets Provide safety nets

Transport Protruded Use red flags/lights at the



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EFFECT OF HAZARD

PREVENTIVE MEASURES

ation of rods by trucks

rods may hit the persons

ends Do not protrude the rods in

front of or by the side of driver’s cabin.

Do not extend the rods 1/rd of deck length or 1.5 m which is less

(D) WELDING AND GAS CUTTING

Welding radiates invisible ultraviolet and infrared rays

Radiation can damage eyes and skin.

Use specified shielding devices and other PPE of correct specifications

Avoid throated tungsten electrodes for GTAW

Improper placement of oxygen and acetylene cylinders

Explosion may occur

Move out any leaking cylinder

Keep cylinder in vertical position

Use trolley for transportation of cylinders and chain them

Use flash back arrestors Leakage/c

uts in hoses

May cause fire

Purge regulators immediately and then turn off

Never use grease or oil on oxygen line connections and copper fittings on acetylene lines

Inspect regularly gas carrying hoses

Use the current for which the cable is designed

Always use red hose for acetylene and other fuel gases and black for oxygen

Opening-up of cylinder

Cylinder may burst

Always stand back from the regulator while opening the cylinder

Turn valve slowly to avoid bursting

Cover the lug terminals to prevent short circuiting.

Welding of tanks, container or pipes storing

Explosion may occur

Empty them before welding Never attach the ground

cable to tanks, container or pipe storing flammable liquids



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EFFECT OF HAZARD

PREVENTIVE MEASURES

flammable liquids

Never use LPG for gas cutting

(E) RADIOGRAPHY

Ionizing radiation

Radiations may react with the skin and can cause cancer, skin irritation, dermatitis, etc.

Ensure safety regulations as per BARC before commencement of job.

Cordon off the area and install Radiation warning symbols

Restrict the entry of unauthorized persons

Wear appropriate PPE and film bagdges issued by BARC

Transportation and Storage of Radiography source

Same as above

Never touch or handle radiography source with hands

Store radiography source inside a pit in an exclusive isolated storage room with lock and key arrangement. The pit should be approved by BARC

Radiography source should never be carried either in passenger bus or in a passenger compartment of trains.

BARC have to be informed before source movement.

Permission from Director General of Civil Aviation is required for booking radio isotopes with airlines.

Loss of Radio isotope

Same as above

Try to locate with the help of Survey Meter

Inform BARC(*) (F) ELECTRICAL INSTALLATION AND USAGE

Short circuiting

Can Cause Electrocution or Fire

Use rubberized hand gloves and other PPE

Don’t lay wires under carpets, mats or door ways.

Allow only licensed electricians to perform on electrical facilities

Use one socket for one appliance

Ensure usage of only fully insulated wires or cables

Don’t place bare wire ends in a socket



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EFFECT OF HAZARD

PREVENTIVE MEASURES

Ensure earthing of machineries and equipments

Do not use damaged cords and avoid temporary connections

Use spark-proof/flame proof type field distribution boxes.

Do not allow open/bare connections

Provide all connections through ELCB

Protect electrical cables/equipment’s from water and naked flames

Check all connections before energizing

Overloading of Electrical System

Bursting of system can occur which leads to fire

Display voltage and current ratings prominently with ‘Danger’ sings.

Ensure approved cable size, voltage grade and type

Switch off the electrical utilities when not in use

Do not allow an unauthorized connections

Ensure proper grid wise distribution of Power.

Improper laying of overhead and underground transmission lines/cables

Can cause electrocution and prove fatal

Do not lay unarmored cable directly on ground, wall, roof of trees

Maintain at least 3m distance from HT cables

All temporary cables should be laid at least 750 mm below ground on 100 mm fine sand overlying by brick soling

Provide proper sleeves at crossings/intersections

Provide cable route markers indicating the type and depth of cables at intervals not exceeding 30m and at the diversions/termination.

(G) FIRE PREVENTION AND PROTECTION

Small fires can become big ones

Cause burn injuries and may prove fatal

In case a fire breaks out, press fire alarm system and shout “Fire, Fire”

Keep buckets full of sand &



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EFFECT OF HAZARD

PREVENTIVE MEASURES

and may spread to the surrounding areas

water/fire extinguishing equipment near hazardous locations

Confine smoking to ‘Smoking Zones’ only

Train people for using specific type of fire equipments under different classes of fire

Keep fire doors/ shutters, passages and exit doors unobstructed

Maintain good house keeping and first-aid boxes (for detail refer Annex-2)

Don’t obstruct assess to f Fire extinguishers Do not use elevators for

evacuation during fire Maintain lightening

arrestors for elevated structures

Improper selection of Fire extinguishers

It may not extinguish the fire

Ensure usage of correct fire extinguisher meant for the specified fire (for details refer Annexure-III)

Do not attempt to extinguish Oil and electric fires with water. Use foam cylinders/CO2/sand or earth.

Improper storage of highly inflammable substances

Same as above

Maintain safe distance of flammable substances from source of ignition

Restrict the distribution of flammable materials to only min. necessary amount

Construct specifically designed fuel storage facilities

Keep chemicals in cool and dry place away from hat. Ensure adequate ventilation

Before welding operation, remove or shield the flammable material properly

Store flammable materials in stable racks, correctly labelled



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EFFECT OF HAZARD

PREVENTIVE MEASURES

Wipe off the spills immediately

Short circuiting of electrical system

Same as above

Can cause Electrocution

Don’t lay wires under carpets, mats or door ways

Use one socket for one appliance

Use only fully insulated wires or cables

Do not allow open/bare connections

Provide all connections through ELCB

Ensure earthing of machineries and equipments

(H) VEHICULAR MOVEMENT

Crossing the Speed Limits (Rash driving)

Personal injury

Obey speed limits and traffic rules strictly

Always expect the unexpected and be a defensive drive

Use sat belts/helmets Blow horn at intersections

and during overtaking operations.

Maintain the vehicle in good condition

Do not overtake on curves, bridges and slopes

Adverse weather condition

Same as above

Read the road ahead and ride to the left

Keep the wind screen and lights clean

Do not turn at speed Recognize the hazard,

understand the defense and act correctly in time.

Consuming alcohol before and during the driving operation

Same as above

Alcohol and driving do not mix well. Either choose alcohol or driving.

If you have a choice between hitting a fixed object or an on-coming vehicle, hit the fixed object

Quit the steering at once and become a passenger. Otherwise take sufficient rest and then drive.

Do not force the driver to drive fast and round the clock



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EFFECT OF HAZARD

PREVENTIVE MEASURES

Do not day dram while driving

Falling objects/ Mechanical failure

May prove fatal

Ensure effective braking system, adequate visibility for the drives, reverse warning alarm

Proper maintenance of the vehicle as per manufacturer instructions

(I) PROOF TESTING (HYDROSTATIC/ PNEUMATIC TESTING

Bursting of piping

Collapse of tanks

Tanks flying off

May cause injury and prove fatal

Prepare test procedure & obtain CONSULTANT/ Owner’s approval

Provide separate gauge for pressurizing pump and piping/equipment

Check the calibration status of all pressure gauges, dead weight testers and temperature recorders

Take dial readings at suitable defined intervals and ensure most of them fall between 40-60% of the gauge scale range

Provide safety relief valve (set at pressure slightly higher than test pressure) while testing with air/nitrogen

Ensure necessary precautions, stepwise increase in pressure, tightening of bolts/ nuts, grouting, etc. before and during testing

Keep the vents open before opening any valve while draining out of water used for hydro testing of tanks

Pneumatic testing involves the hazard of released energy shored in compressed gas. Specific care must therefore be taken to minimize the chance of brittle failure during a pneumatic leak test. Test temperature is important in this regard and must be



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EFFECT OF HAZARD

PREVENTIVE MEASURES

considered when the designer chooses the material of construction

A pressure relief device shall be provided, having a set pressure not higher than the test pressure plus the lesser of 345 KPa (50 psi) or 10% of he test pressure.

(J) WORKING AT HEIGHTS

Person can fall down

May sustain severe injuries or prove fatal

Provide guard rails/barricade at the work place

Use PPE like safety belts, full body harness, life line, helmets, safety shoes, etc.

Obtain a permit before starting the work at height above 3 meters

Fall arrest systems like safety nets, etc. must be installed

Provide adequate working space (min. 0.6 m)

Tie/weld working platform with fixed support

Use roof top walk ladder while working on a slopping roofs

Avoid movement on beams May hit the

scrap/ material stacked at the ground or in between

Keep the work place neat and clean

Remove the scrap immediately

Material can fall down

May hit the workers working at lower levels and provide fatal

Same as above plus Do not throw or drop

material or equipment from height

All tools to be carried in a tool-kit bags or on working uniform

Remove scrap from the planks

Ensure wearing of helmet by the workers at low level

(K) CONFINED

Suffocation/

Unconsciousness, death

Use respiratory devices, if required



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EFFECT OF HAZARD

PREVENTIVE MEASURES

SPACES drowning Avoid over crowding inside a confined space

Provide Exhaust Fans for ventilation

Do not weal loose clothes, neck ties, etc.

Check for presence of hydrocarbons, O2 level

Obtain work permit before entering a confined space

Ensure that the connected piping of the equipment which is to be opened is pressure free, fluid has been drained, vents are open and piping is positively isolated by a blind flange

Presence of foul smell and toxic substances

Inhalation can pose threat to life

Same as above plus Check for hydrocarbon and

Aromatic compounds before entering a confined space

Depute one person outside the confined space for continuous monitoring and for extending help in case of an emergency

Ignition/flame can cause fire

Person may sustain burn injuries or explosion may occur

Keep fire extinguishers at a hand distance

Remove surplus material and scrap immediately

Do not smoke inside a confined space

Do not allow gas cylinders inside a confined space

Use low voltage (24V) lamps for lighting

Use tools with air motors or electric tools with max. voltage of 24V

Remove all equipments at the end of the day

(L) HANDLING AND LIFTING EQUPMENTS

Failure of load lifting and moving equipments

Can cause accident and prove fatal

Avoid standing under the lifted load and within the operating radius of cranes

Check periodically oil, brakes, gears, horns and tyre pressure of all moving machinery

Check quality, size and



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EFFECT OF HAZARD

PREVENTIVE MEASURES

condition of all chain pulley blocks, slings, U-clamps, D-shackles, wire ropes, etc.

Allow crane to move only on hard, firm and levelled ground

Allow lifting slings as short as possible and check gunny packing at the friction points

Do not allow crane to tilt its boom while moving

Install Safe Load Indicator Overloadi

ng of lifting equipments

Same as above

Safe lifting capacity of derricks and winches written on them shall be got verified.

The max safe working load shall be marked on all lifting equipments

Check the weight of columns and other heavy items painted on them and accordingly decide about eh crane capacity, boom and angle of erection

Allow only trained operators and riggers during crane operation

Overhead electrical wires

Can cause electrocution and fire

Do not allow boom or other parts of crane to come within 3 m reach of overhead HT cables

Hook and load being lifted shall preferably remain in full visibility of crane operator.

(M) SCAFFOLDING, FORMWORK AND LADDERS

Person can fall down

Person may sustain severe injuries and prove fatal

Provide guard rails for working at height

Face ladder while climbing and use both hands

Ladders shall extend about 1m above landing for easy access and tying up purpose

Do not place ladders against movable objects and maintain base at ¼ unit of the working length of the ladder



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EFFECT OF HAZARD

PREVENTIVE MEASURES

Suspended scaffolds shall not be less than 500 mm wide and tied properly with ropes

No loose planks shall be allowed

Use PPE, like helmets, safety shoes, etc.

Failure of scaffolding material

Same as above

Inspect visually all scaffolding materials for stability and anchoring with permanent structures.

Design scaffolding for max. load carrying capacity

Scaffolding planks shall not be less than 50x250 mm full thickness lumber or equivalent. These shall be cleared or secured and must extend over the end supports by at least 150mm and not more that 300 mm

Don’t overload the scaffolds Do not splice short ladders

to make a longer one. Vertical ladders shall not exceed 6m.

Material can fall down

Persons working at lower level gets injured

Remove excess material and scrap immediately

Carry the tools in a tool-kit bag only

Provide safety nets (N) STRUCTURAL WORKS

Personal negligence and danger of fall

Can cause injury or casualty

Do not take rest inside rooms built for welding machines or electrical distribution system

Avoid walking on beams at height

Wear helmet with chin strap and safety belts when working at height

Use hand gloves and goggles during grinding operations

Cover or mark the sharp and projected edges

Do not stand within the operating radius of cranes

Lifting/sli Same as Do not stand under the lifted



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EFFECT OF HAZARD

PREVENTIVE MEASURES

pping of material

above load Stack properly all the

materials. Avoid slippage during handling

Control longer pieces lifted up by cranes from both ends

Remove loose materials from height

Ensure tightening of all nuts and bolts

(O) PIPELINE WORKS

Erection/lowering failure

Can cause injury

Do not stand under the lifted load

Do not allow any person to come within the radii of the side boom handling pipes

Check the load carrying capacity of the lifting tools and tackles

Use safe Load Indicators Use appropriate PPEs

Other Same as above

Wear gum boots in marshy areas

Allow only one person to perform signalling operations while lowering of pipes

Provide night caps on pipes Provide end covers on pipes

for stoppage of pigs while testing/cleaning operations



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MONTHLY HSE CHECKLIST CUM COMPLIANCE REPORT

PROJECT : ………………………. CONTRCTOR: …………..…………………….

DATE : ………………………. OWNER : ………………………………...

INSPECTED BY: ……………………….

Note: Write ‘NA’ wherever the item is not applicable.


SL. NO

. ITEM

YES

NO

REMARKS

ACTION

1 HOUSEKEEPING a) Waste containers provided and used b) Sanitary facilities adequate and clean c) Passageways and Walkways clear d) General neatness of working areas e) Others 2 PERSONNEL PROTECTIVE EQUIPMENT a) Goggles; Shields b) Face protection c) Hearing protection d) Safety shoes e) Hand protection f) Respiratory Masks etc. g) Safety Belts h) Safety Helmet/Hard Hat I) Others 3 EXCAVATIONS/OPENINGS a0 Openings properly covered or barricaded b) Excavations shored c) Excavations barricaded d) Overnight lighting provided e) Others 4 WELDING & GAS CUTTING a) Gas cylinders chained upright b) Cables and hoses not obstructing c) Screens or shields used d) Flammable materials protected e) Fire extinguisher(s) accessible f) Others 5 SCAFFOLDING a) Fully decked platforms b) Guard and intermediate rails in place c) Toe boards in place



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SL. NO

. ITEM

YES

NO

REMARKS

ACTION

d) Adequate shoring e) Adequate access f) Others 6 LADDERS a) Extension side rails 1m above b) Top of landing c) Properly secured d) Angle + 70 from horizontal e) Others 7 HOISTS, CRANES AND DERRICKS a) Condition of cables and sheaves OK b) Condition of slings, chains, hooks and eyes OK c) Inspection and maintenance logs maintained d) Outriggers used e) Signs/barricades provided f) Signals observed and understood g) Qualified operators h) Others 8 MACHINERY, TOOLS AND EQUIPMENT a) Proper instruction b) Safety devices c) Proper cords d) Inspection and maintenance e) Others 9 VEHICLE AND TRAFFIC a) Rules and regulations observed b) Inspection and maintenance c) Licensed drivers d) Others 10 TEMPORARY FACILITIES a) Emergency instructions posted b) Fire extinguishers provided c) Fire-aid equipment available d) Secured against storm damage e) General neatness f) In accordance with electrical requirements g) Others 11 FIRE PREVENTION a) Personnel instructed b) Fire extinguishers checked c) No smoking in Prohibited Areas d) Hydrants Clear e) Others 12 ELECTRICAL a) Use of 3-core armoured cables



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SL. NO

. ITEM

YES

NO

REMARKS

ACTION

b) Usage of 'All insulated' or 'double insulated' electrical tools

c) All electrical connection are routed through ELCB

d)

Natural Earthing.



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SL. NO

. ITEM

YES

NO

REMARKS

ACTION

at the source of power (main DB)

e) Continuity and tightness of earth conductor

f) Covering of junction boxes, panels and other energized wiring places

g) Ground fault circuit interrupters provided h) Prevention of tripping hazards I) Others 13 HANDLING AND STORAGE OF MATERIALS a) Properly stored or stacked b) Passageways clear c) Others 14 FLAMMABLE GASES AND LIQUIDS a) Containers clearly identified b) Proper storage c) Fire extinguishers nearby d) Others 15 WORKING AT HEIGHT a) Erection plan and work permit obtained b) Safety nets

c) Safety belts, full body harness and lanyards; chute lines

d) Others 16 CONFINED SPACE a) Work permit obtained

b) Test for toxic gas and sufficient availability of oxygen conducted

c) At least one person outside the confined space for monitoring deputed

d) Availability of sufficient means of entry, exit and ventilation

e) Fire extinguishers and first-aid facility ensured f) Lighting provision made by using 24V lamps g) Proper usage of PPEs ensured 17 RADIOGRAPHY

a) Proper storage and handling of source as per BARC guidelines

b) Working permit obtained c) Cordoning of the area done d) Use of appropriate PPE's ensured e) Proper training to workers/supervisors imparted



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SL. NO

. ITEM

YES

NO

REMARKS

ACTION

f) Minimum occupancy of workplace ensured 18 HEALTH CHECKS a) Hygienic conditions at labour camps OK? b) Availability of First-aid facilities c) Proper sanitation at site, office and labour camps d) Arrangement of medical facilities e) Measures for dealing with illness

f) Availability of Portable drinking water for workmen & staff

g) Provision of crèches for children 19 ENVIRONMENT a) Chemical and other effluents properly disposed b) Cleaning liquid of pipes disposed off properly

c) Seawater used for hydro-testing disposed off as per agreed procedure

d) Lubricant Waste/Engine oils properly disposed

e) Waste from Canteen, offices, sanitation etc. disposed properly

f) Disposal of surplus earth, stripping materials, oily rags and combustible materials done properly

g) Green belt protection



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ACCIDENT / FIRE REPORT

(To be submitted by Contractor after every accident within 24 hours of accident)

Report: ………………………….

Name of Site Date: ……………………………. ----------------------------------------------------------------------------------------------------------------- NAME OF THE INJURED FATHER’S NAME SUB-CONTRACTOR M/S. DATE & TIME OF ACCIDENT LOCATION ----------------------------------------------------------------------------------------------------------------- BRIEF DESCRIPTION OF ACCIDENT

----------------------------------------------------------------------------------------------------------------- CAUSE OF ACCIDENT

----------------------------------------------------------------------------------------------------------------- NATURE OF INJURY/DAMAGE

----------------------------------------------------------------------------------------------------------------- MEDICAL AID PROVIDED/ACTIONS TAKEN

----------------------------------------------------------------------------------------------------------------- INTIMATION TO LOCAL AUTHORITIES

----------------------------------------------------------------------------------------------------------------- DATE: SIGNATURE OF CONTRACTOR

WITH SEAL

TO : OWNER 1 COPY

RCM/SITE-IN-CHARGE CONSULTANT 1 COPY CONSULTANT HO Constn. Through RCM 3 COIES Proj.Mgr. CONSULTANT, Through RCM 1 COPY



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SUPPLEMENTARY ACIDENT & INVESTIGATION REPORT

Project: ……………………………

Supplementary to Report No. : ………………………………. (Copy enclosed)

Site: ………………………………………………………………. Date:

Contractor: …………………………………………………………………………………………

----------------------------------------------------------------------------------------------------------------- NAME OF INJURED FATHER’S NAME SUB-CONTRACTOR M/S. DATE & TIME OF ACCIDENT LOCATION ----------------------------------------------------------------------------------------------------------------- BRIEF DESCRIPTION & CAUSE OF ACCIDENT

----------------------------------------------------------------------------------------------------------------- NATURE OF INJURY/DAMAGE

----------------------------------------------------------------------------------------------------------------- COMMENTS FROM MEDICAL PRACTITIONER, WHO ATTENDED THE

VICTIM/INJURED

----------------------------------------------------------------------------------------------------------------- SUGGESTED IMPROVEMENT IN THE WORKING CONDITION, IF ANY

----------------------------------------------------------------------------------------------------------------- LOSS OF MAN HOURS AND IMPACT ON SITE WORKS

----------------------------------------------------------------------------------------------------------------- ANY OTHER COMMENT BY SAFETY OFFICER

----------------------------------------------------------------------------------------------------------------- DATE :

SIGNATURE OF CONTRACTOR WITH SEAL

TO : OWNER 1 COPY

RCM/SITE-IN-CHARGE CONSULTANT 1 COPY CONSULTANT HO Constn. Through RCM 3 COIES Proj.Mgr. CONSULTANT, Through RCM 1 COPY



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MONTHLY Health, Safety & Environment (HSE) REPORT

(To be submitted by each Contractor)

Actual work start Date: ……………………………… For the month of : ……………

Project : ………………………………………………. Report No. : …………………

Name of the Contractor : …………………………….. Status as on : …………………

Name of work : ………………………………………. Name of Safety Officer : ………

ITEM THIS MONTH CUMULTIVE

Total strength (Staff + Workmen) Number of HSE meetings organized at site Number of HSE awareness programmes conducted at site

Whether workmen compensation policy taken Y/N -- Whether workmen compensation policy is valid Y/N -- Whether workmen registered under ESI Act Y/N -- Number of Fatal Accidents Number of Loss Time Accidents (Other than Fatal) Other accidents (Non Loss Time) Total number of accidents Total man-hours worked Man-hour loss due to fire and accidents Compensation cases raised with Insurance Compensation cases resolved and paid to workmen Remarks, if any :

DATE : SIGNATURE OF CONTRACTOR WITH SEAL

TO : OWNER 1 COPY

RCM/SITE-IN-CHARGE CONSULTANT 1 COPY



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PERMIT FOR WORKING ABOVE 3 METER HIGHT (Strike out whichever is not applicable)

Project Site : ……………………………………… Sr. No.: ……………………… Name of the work: ………………………………. Date: ………………………… Name of Contractor : …………………………….. Nature of Work : …………… Total No.of Workers: …………………………….. Exact location of work : ……

Duration of work: from ..…… to The following items have been checked and compliance shall be ensured during the currency of the permit: ------------------------------------------------------------------------------------------------------- Sl. ITEM DONE NOT REQD.

------------------------------------------------------------------------------------------------------- 1. Equipment/Work Area inspected 2. Considered hazard from other routine/non-routine operations and concerned person alerted 3. ELCB provided 4. Proper lighting provided 5. Area cordoned off. 6. Precautions against public traffic taken 7. Sound Scaffolding provided 8. Adequate protected Platform provided 9. Access and Exit to the area

(Ladder properly fixed) 10. Floor Openings covered 11. Safety Net provided ------------------------------------------------------------------------------------------------------- A. Following personal protective equipment are provided (√ mark) and used as relevant Safety

helmet/Gloves/Goggles/Shoes/Face Shield/Life Line/Safety Belt/Safety Harness. B. This permit shall be available at the work site at all times. C. Permit shall be issued for maximum one week only (Monday to Sunday). D. This permit shall be applicable in non-operational areas. E. After completion of the work, used permits shall be preserved for record purposes. F. Additional precautions, if any …………………………………………………………. Permission is granted to work (See overleaf) = Yes/No. Name of Contractor’s Supervisor Name of Contractor’s Safety Officer (Initiator) (Issuing Authority)



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GRANT OF PERMIT AND EXTENSIONS

Sl. No.

Validity Period From ……… To ………

Work time From …..Hrs.

To ……….Hrs.

Initiator (Supervisor

of Contractor)

Issuing Authority

(Safety Officer) of Contractor

Verification by

CONSULTANT with date

Additional safety instructions, if any.



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HEALTH, SAFETY & ENVIRONMENT (HSE) PLAN

Division/Department : Project Name :

Activity/Process Procedure Code of Performer Checker Approver

Sampling Plan Owner's/ PMC's Audit

Description Number Conformance Reviewer Reviewer Approver Requirements



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ELECTRICAL Electrical power is the mainstay of any construction activity, at the same time it requires utmost care in it’s utilization to avoid accidents due to electrical shock, fire incidents or electric short circuits. Exposure of electrical installation to adverse environmental conditions increase the risk of such accidents. Hence it is necessary to take extra precautions for such installations to ensure safety of personnel and equipment. This standard addresses the safety measures required to be adopted for the electrical installations by all contractors during construction phase.

All electrical connections/work for electrical installations shall be carried out as per provisions of the latest revision of the following codes and standards in addition to the requirements of statutory authorities and ie rules : Oisd-std-173 : fire prevention and protection system for electrical installations. Sp-30 (bis) : national electric code. The installation shall have approval from concerned statutory authorities.

1. All electrical connections shall be done by an electrician with valid licence and to the satisfaction of engineer-in-charge.

2. One competent licenced electrician shall be made available by contractor at site round the clock to attend to the normal/emergency jobs.

3. All switch boards/welding machines shall be kept in well ventilated and covered shed. The shed shall be elevated to avoid water logging. No flammable materials shall be used for constructing the shed. Also flammable materials shall not be stored in and around electrical equipment/switchboard. Adequate clearances and operational space shall be provided around the equipment.

4. Fire extinguishers and insulting mats shall be provided in all power distribution centres. 5. Temporary electrical equipment shall not be employed in hazardous areas without obtaining

safety permit. 6. Proper housekeeping shall be done around the electrical installations. 7. All temporary installations shall be tested before engineering, to ensure proper earthing,

bonding, suitability of protection system, adequacy of feeders/cables etc. 8. All welders shall use hand gloves irrespective or holder voltage. 9. Multilingual (English, Hindi and local language) caution boards, shock treatment charts and

instruction plate containing location of isolation point for incoming supply, name and telephone number(s) of contact person in emergency shall be provided in substations and near all distribution boards/local panels.

10. Operation of earth leakage device shall be checked regularly by temporarily connecting series test lamp (2 bulbs of equal rating connected in series) between phase and earth.

11. The following design features shall be ensured for all electrical installations during construction phase.

12.1 Each installation shall have a main switch with a protective device, installed in an enclosure adjacent to the metering point. The operating height of the main switch shall not exceed 1.5 m. The main switch shall be connected to the point of supply by means of armoured cable.

12.2 The outgoing feeders shall be double or triple pole switches with fuses/mcbs. Loads in a three phase circuit shall be balanced as far as possible and load on neutral should not exceed 20% of load in the phase.

12.3 The installation shall be adequately protected against overload, short circuit and earth leakage by the use of suitable protective devices. Fuses wherever used shall be hrc type. Use of rewirable fuses shall be strictly prohibited. The earth leakage device shall have an operating current not exceeding 30 ma.

12.4 All connections to the handtools/welding receptacles shall be taken through proper switches, sockets and plugs.



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12.5 All single phase sockets shall be 3 pin type only. All unused sockets shall be provided with socket caps.

12.6 Only 3 core (p+n+e) overall sheathed flexible cables with minimum conductor size of 1.5 mm2 copper shall be used for all hand tools.

12.7 Only metallic distribution boxes with double earthing shall be used at site. No wooden boxes shall be used.

12.8 All power cables shall be terminated with compression type cable glands. Tinned copper lugs shall be used for multistrand wires/cables.

12.9 Cables shall be free from any insulation damage. 12.10 Cables shall be laid underground at a minimum depth of 900 mm, covered with sand, brick and

soil for ensuring mechanical protection. Cables shall not be laid in water logged area as far as practicable. Cable route markers shall be provided at every 25 m of buried trench route. When laid above ground, cables shall be properly cleated or supported on rigid poles of at least 2 m high. Minimum head clearance of 6 meters shall be provided at road crossings.

12.11 Under ground road crossings for cables shall be avoided to the extent feasible. In any case no under ground power cable shall be allowed to cross the roads without pipe sleeve.

12.12 All cable joints shall be done with proper jointing kit. No taped/temporary joints shall be used. 12.13 An independent earthing facility should preferably be established within the temporary

installation premises. All appliances and equipment shall be adequately earthed. In case armoured cables are used, the armour shall be bonded to the earthing system.

12.14 All cables and wire rope used for earth connections shall be terminated through tinned copper lugs.

12.15 In case of local earthing, earth electrodes shall be buried near the supply point and earth continuity wire shall be connected to local earth plate for further distribution to various appliances. All insulated wires for earth connection shall have insulation of green colour.

12.16 Separate core shall be provided for neutral earth/structures shall not be used as a neutral in any case.

12.17 On/off position of all switches shall be clearly designated/ painted for easy isolation in emergency.

12.18 All insulations shall be inspected by engineer-in-charge atleast once in a month.

Date post:	07-Mar-2021
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