SPECIFICATION NO.M.S.E.T.C.L./VID/ACDB/135/2004 TRANSMISSION PROJECT TECHNICAL SPECIFICATION F O R A.C. DISTRIBUTION BOARDS. F O R VARIOUS SUB-STATIONS IN MAHARASHTRA MAHARASHTRA STATE ELECTRICITY TRANSMISSION COMPANY LTD. MUMBAI
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ANNEXURE – D
VOL-I
SPECIFICATION FOR A.C. DISTRIBUTION BOARDS GENERAL TECHNICAL CONDITION 1.0 SCOPE: 1.1 This specification covers design, manufacture, assembly, and testing at manufacturer's works, packing and supply on F.O.R. Destination basis of Indoor type 415V - 800A A.C. Distribution Boards for 400kV S/S and 415V, - 300A for 200/132kV S/S for distribution of power to Sub station lighting, battery charging, power line carrier communication equipment, compressors, switchyard lighting and all other station accessories and lighting panels with accessories for Auxiliary system. The system shall be A.C. 3 phase, 4 wire, 440 volts 50 cycles effectively grounded. 2.0 STANDARD: 2.1 The equipment accessories covered in this specification shall be designed, manufactured and tested in compliance with the latest relevant standard and code of practice published by Indian Standard Institute, wherever availble, and suitable care shall be taken for suitability of the equipment for the weather conditions mentioned in this specification elsewhere. 2.2 The equipment accessories for which Indian Standard and code of practices are not available shall be designed manufac- tured and tested in accordance with the latest standard and
codes of practice published by any other recognised national standard institute of latest publication of international electro technical commission.
2.3 Equipment meeting with the stipulations of equivalent IEC, ANSI, CSA, DIN Standards which ensure equal or better quali-
ty than the standards listed in list of standards, above,
shall also be acceptable. In such cases the tenderer should submitt alongwith his offer, two copies of such Standards in authentic English translation, if the language of the Stan- dard is other than English. In case of disput, the stipula- tions in English translation, submitted by the tenderer shall privel. Further, in event of conflict between the stipulations of the standard adopted by the tenderer and corresponding Indian Standard specification, the stipulation of Indian Standard Specification shall privel. 2.4 All electrical equipments used in A.C.D.B. shall conform to the latest Indian Electricity Rules as regards safety, earthing and other essential provisions specified therein for installation and operation of electrical plant. 2.5 All equipments and installations shall comply with the relevant statutory requirements of Government of India/State Govt. of Maharashtra. LIST OF STANDARDS ---------------------------------------------------------------------- SR.NO STANDARD NO. TITLE ---------------------------------------------------------------------- 1. IS : 13947 - Degrees of protection provided by enclosures for low voltage switch- gear and controlgear. 2. IS : 2208 - HRC cartridge fuse links upto 650 V. 3. IS : 13947 - A.C.circuit breakers Part I to V. 4. IS : 8836 - Minature ckt. breakers. 5. IS : 2705 - Current transformers. 6. IS : 3156 - Voltage transformers. 7. IS : 4047 - Heavy duty air-break switches and compo- site units of air-break switches and fuses for voltage not exceeding 1000 V.
8. IS : 4237 - General requirements for switchgear and controlgear for voltages not exceeding 1000 V. 9. IS : 375 - Marking and arrangement for switchgear busbars, main connections and auxiliary wirings. 10. IS : 1248 ) - Electrical indicating instruments Is : 2419 ) 11. IS : 694 - PVC insulated cables for working voltages upto including 1100 V. 12. IS : 1554 - PVC insulated (Heavy duty) electric cables. 13. IS : 2959 - A.C.conductor for voltages not exceeding 1000 V. 14. IS : 6005 - Code of practice for phosphating of Iron and Steel 15. IS : 3231 - Electrical relays for power system protection. 16. IS : 9224 - Fuses. 17. IS : 3842 - Electrical relay for A.C. system. 18. IS : 5 - Colour for ready mix. paints. 19. IS : 9676 - Reference ambient temp. for electrical equipments. 20. IS : 8623 - Low votlage switchgear and control gear. Part I assemblies. 21. IS : 13779 - Standard specification for static energy meter 22. IS : 1036 - Standard specification for static energy meter. 3.0 MEASUREMENTS AND WEIGHT SYSTEM : 3.1 Unless otherwise stated all dimensions shall be in S.I. Units.
4.0 DRAWINGS:- 4.1 All drawings shall conform to International Standard Organi-
sation (ISO)`A' Series of drawing sheets/Indian Standard Specification IS 696. All drawings shall be in ink and suitable for micro filming. 4.2 Drawing submission schedule and programme of manufacturing shall be sent within Ten days after the issue of Letter of Indent by the successful tenderer. 4.3 All drawings submitted by the tenderer including those submitted at the time of the bid shall be in sufficient details to indicate the type, size, arrangement, weight of each components the external connection, fixing arrangement, dimensions required for installation and internal connection with other equipment and material, clearance and space required for various operation of the equipments and any other information specifically requested in this specifica- tion elsewhere. 3 sets of drawings/catelogue shall be sub- mitted alongwith the bid. 4.4 The tenderer shall submit 6 sets of the following drawings to the Planning Section for scrutiny and approval within 2weeks time from the date of receipt of Letter of Intent. a) General arrangement drawing and assembly drawings of A.C. distribution Board showing all details. b) Wiring diagram with terminal designations. c) Itemwise bill of material listing all devices mounted on the Board. The make and type of the devices shall also be furnished.
4.5 The successful tenderer shall furnish to M.S.E.T.C.L. 20 prints
and 2 reproducible films of the approved drawing after incorporating all the comments/corrections. 4.6 The fabrication work shall be strictly in accordance with this drawing and no deviation shall be permitted without the
witten approval of the Chief Engineer (Transmission Plan- ning). All manufacturing and fabrication work in connection with A.C.D.B. prior to the approval of the drawing shall be at the supplier's risk.
4.7 Approval of drawings/works by M.S.E.T.C.L.shall not relieve
the supplier of any of its responsibility and liability under terms and conditions of M.S.E.T.C.L. The equipment shall conform in all respect to high standards of engineering, design
and workmanship and be capable of performing in continuous commercial operation upto tenders guarantee in a manner acceptable to purchaser who will interpret the meaning of drawings and specifications and shall have the power to reject any work or materials which in his judgement are not in full accordance therewith. 5.0 DEGREE OF PROTECTION:- 5.1 The Distribution Boards shall be designed with a view to obtain the highest practicable efficiency for the duties specified. They shall be capable of operating continuously without necessity of a shut down and the design shall be such as to ensure trouble free operation and conform to the Typical construction arrangement as shown in the enclosed drawing. Any other better arrangement shall be acceptable subject to approval of M.S.E.T.C.L.
5.2 The Board shall be made dust and vermin proof with the help of good quality long lasting neoprene gaskets at the various openings and doors. 6.0 PAINTING :- 6.1 All sheet steel work shall be phosphated in accordance with the following procedure and in accordance with IS:6005 "Code of practice for Phosphating Iron and Steel".
6.2 Oil, grease, dirt and swarf shall be thoroughly removed by emulsion cleaning.
6.3 Rust and scale shall be removed by pickling with dilute acid followed by washing with running water, rinsing with slight- ly alkaline hot water and drying. 6.4 After cleaning in 7 tanks, the indoor equipment should be powder
coated by electostatic method and outdoor equipment should be spray painted with light grey shade No-631 of IS-5. The base frame shall be powder coating with black colour.
6.5 Finished powder appearance of A.C.D.B. shall present an aes- thetically pleasing appearance free from dents and uneven surface. 7.0 ANTICONDENSATION HEATERS & INTERNAL ILLUMINIATION:- 7.1 In the A.C. Distribution Board heating elements of appro- priate size with switch control shall be provided. Internal illumination lamps/mercury tubes shall be provided. 8.0 CONTROL AND BOARD WIRING:- 8.1 All wiring shall be carried out by 1100 V grade single core stranded copper conductor wires with PVC insulation and shall be flame, vermine and rodent proof. The minimum sizes are 2.5 sq.mm for all circuits. 8.2 All wiring inside the panel shall be carried out with 650V grade PVC insulated, stranded conductor wires of atleast 2.5 sq.mm. size. An air clearance of at least 10mm shall be maintained in wiring right up to the terminal lugs. Wherever this clearance is not available the live parts shall be insulated or shrouted. 8.3 Panel wiring shall be securely supported, neatly arranged, readily accessible and connected to equipment terminals and terminal blocks. Wiring gutters, troughs shall be used for
this purpose. Wire terminations shall be made with solder- less crimping type tinned copper lugs. Core identification plastic ferrules shall be provided. The wiring and wire numbering scheme shall be as per IS-375. 8.4 All wires forming part of a tripping circuit shall be provi- ded with an additional red ferrule marked `T'. 8.5 Spare auxiliary contacts of all equipment forming part of the switchgear shall be wired up to the terminal blocks. 8.6 COLOUR CODING:- The colour coding for the live parts of electrical connec- tions shall be as follows :- ----------------------------------------------------------- Sr. Particulars Colour identification No. ----------------------------------------------------------- 1. Neutral Black 2. R Phase Red 3. Y Phase Yellow 4. B Phase Blue 5. Earth Green ----------------------------------------------------------- 9.0 CABLE TERMINATION:- 9.1 All external cable connections shall be terminated in the terminal blocks provided in the control cubicle. The cable entries shall be through proper cable glands with removable cable gland plate on the cabinet for cables. All necessary cable termination accessories such as removable cable gland plates, packing glands, crimping type tinned copper / Alu- minium lugs as per the cable sizes, supporting clamps and brackets etc., shall be provided. The number of multicore cables required for termination shall be furnished after the placement of letter of intent. The cable glands shall be of suitable size for PVC insulated for unarmoured cables. All cable glands shall be of brass nickel plated material. The
successful tenderer shall submit samples of the cable glands to the Superintending Engineer (220kV Planning) M.S.E.T.C.L.
for approval.
10.0 TERMINAL BLOCKS:- 10.1 The terminal block shall be stud type with washers, nuts & lock nuts and identification strips. Atleast 10% spare terminals after terminating all spare cores of the cables shall be provided. These shall be at a minimum clearance of 250 mm between the last row of terminals block and the cable gland plate. All terminal blocks shall be covered with transparent covers. All metal parts shall be made of brass including base channel and shall be nickel plated. Hardware shall be of a non-magnetic material. 10.2 Terminal blocks shall be adequately rated to carry the cur- rent of the associated circuit. Minimum rate of the terminal block is 30 A. 11.0 SWITCHES & PUSH BUTTONS :- 11.1 Control and instrument switches shall be rotary type provid- ed with escutche on plates clearly marked to show operating position and suitable for flush mounting with only the switch from plate and operating handle projecting out. The connections shall be from backside. The contact assembly at the back of the switch shall be enclosed in dust tight transperent removable covers. (Minimum rate shall be 10A). 11.2 Push buttons shall be momentary contact type with rear terminal connections and shall have minimum of 2 NO & 2NC contacts. They shall be provided with integral inscription plates engraved with their functions.
11.3 Ammeter selector switches shall have make before break type Contacts so as to prevent open circuiting of CT secondaries when changing the position of switch. 12.0 INSPECTION, TESTS AND INSPECTION CERTIFICATE:-
12.1 All tests and inspection of the equipment specified shall be performed to the extent and in the manner as stipulated in the
relevant standards and the technical specification.
Routine test certificates showing the results of all tests performed on the individual components shall be furnished to
the Superintending Engineer(220kV Planning) M.S.E.T.C.L. for appro- val before despatch of the respective equipments. 12.2 Access to the supplier's works is to be granted by the tenderer and or his representative at all reasonable times during manufacture or assembly to inspect, examine and test, at the works, the material and workmanship of the equipment to be supplied under this specification. Such inspection, examination or testing, if made, shall not relieve the supplier from the terms and condition under the order. 12.3 The supplier should submit a suitable programme for inspec- tion and tests atleast 4 weeks in advance to M.S.E.T.C.L.who shall attend/depute for witnessing the tests/inspection or convey waival. However the A.C.D.B. shall not be despatched unless such waivel is given in writing. 12.4 After the factory tests have been completed the supplier shall issue a certificate to this effect within 2 weeks
after completion of tests but if the tests are not witnessed by M.S.E.T.C.L. representative the certificate shall be issued within 2 weeks of the receipt of the letter for approval. All certificates regarding type tests have been conducted on
the equipments used for assembly of A.C.D.B. shall be sub- mitted to Superintending Engineer (220kV Planning) for approval within 30 days of order for approval.
13.0 POSITION OF WORK :- 13.1 The supplier shall submit monthly position and progress about the work in the proforma agreed between the supplier and M.S.E.T.C.L. The submission and acceptance of these reports shall not prejudice the rights of M.S.E.T.C.L. in any manner or absolve the supplier from his obligation under the order.
14.0 EARTHING:- 14.1 All equipment shall be provided with suitable 2 nos. of grounding terminals of M 12 diameter. Seperate G.I. earth- ing bus bar 50x6mm for frame with necessary nuts, bolts and spring washers shall be provided on the earth busbar. The earthing bolt shall be of galvanised iron and necessary spring washers electro galvanised. 14.2 Earth busbar shall be supported at suitable intervals. 14.3 Positive connection between all the frames of equipment mounted in the switchboard and earth busbar shall be provid- ed by using insulated copper wires/bare busbars of cross section equal to that of the earth bus bar, or equal to half the size of circuit load current carrying conductor, whichever is smaller. 14.4 All instrument and relay cases shall be connected to earth busbar using 1100V grade, 2.5 sq.mm. stranded, tinned copper earthing conductor. 15.0 NAME PLATE :- 15.1 The A.C. Distribution Board shall be provided with Name Plate lettered in English and contain atleast the following information. The name plate shall be made of non-corrosive
material.
a) Maharashtra State Electricity Transmission Co. Ltd. and Order No.
b) The Manufacturers name and trade mark. c) Year of Manufacturing. d) Type. e) Caution Notice. f) Operational precautions if any.
16.0 GENERAL REQUIREMENT:- 16.1 The supplier shall submit the Quality assurance plan along/with the offer for approval of Superintending Engineer (220kV Planning) M.S.E.T.C.L. 16.2 Raw material procurement shall start only after approval of quality assurance plan. 17.0 IMPORTANT NOTES TO TENDERER:- 17.1 The offers which are not complete in all respect as required in the specification shall be considered incomplete and are liable for rejection. 17.2 Deviation from Specifications, if any, shall be clearly listed in the Schedule of Deviation. In absence of which it will be considered that offer is strictly in line with the specification.17.3 The equipments should have been type tested and such equipments should be in service for atleast two years duration. Confirmation regarding this point and the list of such Customers, to whom the supplier had already supplied the equipment similar to the one being offered shall be furnished alongwith the offer. 17.4 Guaranteed Technical Particulars shall be filled in and submitted alongwith the offer.
18.0 CLIMATIC CONDITIONS:- 18.1 The A.C. Distribution Board and materials used in the same shall be suitable for use under the following climatic conditions anywhere in Maharashtra. The Board shall be
suitable for use in the climatic conducive to the growth of fungi and condensation of moisture. 1. Temperature range - from 4 deg. to 50 dec.C 2. Relative humidity - 10 to 100% 3. Maximum wind pressure - 150 Kg./sq.mm. 4. Maximum daily average - 45 deg.C ambient temperature in shade. 5. Altitude above mean sea - 10 to 1000 meters level. 6. Pollution - Most of the substations are situated in Indus- trial Areas and the area is heavily polluted due to Chemical Industries, Steel Rerolling Mills, Ferro Alloys Industries etc. 7. Tropicalisation - All equipments shall be given tropical and fungicidal treatment. 19.0 RECOMMENDED SPARES. 19.1 The tenderer shall furnish in his offer, a list of recom- mended spares with unit rates for all types of panels, that may be required for trouble free operation for a period of 5 years. The purchaser reserves the right of selection of items and quantities of these spares to be ordered. The cost of such spares shall not be considered for tender evaluation. Similarly, special tools and jigs/testing equipments if required for maintenance/testing of equipments offered shall be quoted as optional items. Unit prices of such equipments shall be quoted. 20.0 PACKING AND TRANSPORT:- 20.1 All equipment/material shall be suitably packed for trans- port, carriage at site and out door storage during transit.
The supplier shall be responsible for any damage to the equipment during transit due to improper and inadequate packing. The cases containing easily damageable material shall be very carefully packed and marked with appropriate caution symbols. The contents of each packing shall bear marking that can readily be identified from the package list and packing shall provide complete protection from moisture, termiles and mechanical shocks etc. Wherever necessary proper arrangement for attaching strings for lifting shall be provided and all packages clearly marked with gross weights, sign showing `UP' and `DOWN' sides of boxes, cont- ents of each package, and any handling and unpacking in- structions considered necessary. Any material found short inside the intact packing cases shall be supplied by the supplier without any extra cost. Fragile materials such as relay cases, instruments and other glass materials shall be carefully covered with shock absorbing protective material such as thermocole. The Distribution Boards shall be trans- ported by Road only. 20.2 The packing list and Bill of Material shall be got approved from the Superintending (220kV Planning), M.S.E.T.C.L., before despatch.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ @ @ VOLUME II @ @ TECHNICAL SPECIFICATION FOR @ @ A.C.DISTRIBUTION BOARD @ @ @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ VOL-II TECHNICAL SPECIFICATION FOR A.C. DISTRIBUTION BOARD 1.0 SCOPE OF CLIMATIC CONDITIONS :- 1.1 As already been defined in the Volume I. 2.0 RATED VOLTAGE 2.1 The rated voltage of the Distribution Board with switch fuse units cable etc. shall be 3 phase 4 wire A.C. 415 V. at 50 cycles per second. The supply voltage may vary as follows: a) Voltage variation +/ - 10% b) Frequency variation +/ - 5% c) Combined voltage & +/ - 10% frequency variation. As such, all devices, auxiliary equipments shall be suitable for continuous operation over entire range of voltage. 3.0 GENERAL TECHNICAL REQUIREMENT:- PRINCIPAL TECHNICAL PARAMETERS --------------------------------------------------------------------- Sr.No. Particulars Requirement --------------------------------------------------------------------- 1. Installation : i) Main AC Board Indoor ii) AC Auxilliary Distribution Board Outdoor 2. Phase to Phase and As per IE Rules 1956 Phase to Earth clear- ance 3. Minimum Thickness: i) Frame(INDOOR BOARDS) 2.5 mm ii) Sheet Steel: Auxilliary Boards 2.64 mm (12 SWG) Main AC Boards 2.03 mm (14 SWG)
4. Degree of protection:
i) Outdoor type boards IP 55 ii) Indoor type boards IP 52 5. Maximum temperature of 85 Degree C bus bars when carrying rated current should not exceed. 6. Minimum rating of con- 10 Amp trol, selector switches and terminal block. 7. Earth bus bar 50 x 6mm Galvanised M.S. flat. 8. Circuit Breakers Fully Drawout type/Non drawout type. 9. Cable glands: i) Indoor Single compression ii) Outdoor Double compression 10. Gasket Neoprene of 15x6 mm min. 11. Terminal block Stud type 12. The centre line of operating handle of knob or switch/push button shall be at a minimum 750 mm for out door and 400 mm for indoor boards from G.L. 3.1 The fabrication shall be carried out in not less than 14 SWG M.S. sheet for the front & back side with supporting angle structure made out of cold rolled or bent sheet section. The complete structure shall be rigid, self supporting free from vibration twists & bends. Stiffeners shall be provided wherever necessary. The perforated strips shall be provided at the rear for fixing the incoming cables. The covers for
the busbar compartment as well as other opening and doors shall be bolted type with hot dip galvanised heavy duty wing nuts. 3.2 Outdoor type Boards shall be fabricated out of MS Sheet steel of thickness not less than 2.64mm (12 SWG).
3.3 All panel edges and door edges shall be reinforced against distortion by rolling, bending or by the addition of welded reinforcement members. 3.4 Cut-outs shall be true in shape and devoid of sharp edges. 3.5 All hardwares such as nuts, bolts, etc. except the one used for electrical connection shall be hot dip galvanised as per the standard practice to protect the same from corro- sion. The Board shall be made dust and vermin proof with the help of good quality long lasting neoprene antivibration gaskets of 15mm HCL at the various opening and doors. 3.6 All the electrical devices shall be given tropical & fungi- cidal treatment to enable its satisfactory operations in the highly polluted, hot and humid tropical climatic conditions. 3.7 It is not the intent to specify completely herein, all details of design, & construction of the equipment. However the equipment shall conform in all respects to high stan- dards of engineering, design & worksmanship and be capable of performing in continuous commercial operation upto ten- derers guarantee in a manner acceptable to M.S.E.T.C.L. who will interpret the meaning of drawings and specifications and should have the power to reject any work or materials which in his judgement are not in full accordance therewith.
3.8 The A.C.D.B. shall be designed with a view to obtain the highest practicable efficiency for the duties specified. They shall be capable of operating continuously without necessity of a shut down and the design shall be such as to ensure trouble free operation.
3.9 The tenderer shall note that the A.C.D.B. shall be complete and include all minor accessories not specifically mentioned
in the Bill of Material, schedule, specification etc. but essential for the completeness of the work. The supplier shall not be eligible for any extra charges in respect of such accessories though not specified in the Bill of materi- al with this specification. 3.10 The A&B type Distribution Board shall be of free standing, floor mounting, cubicle type design, modular but non-draw out type. The Board shall be dust and vermin proof. The A.C.B.s and M.C.C.Bs will be door interlock type. The compartment door will not open when MCCB is in `ON' posi- tion. The metering equipments for the both incomers shall be located in seperate compartments. 3.11 The indoor Boards for 400kV system shall be. 3.11.1 of the metal enclosed, indoor, floor mounted and modular type. Fully drawout type or non draw out type as indicated the single line diagram. 3.11.2 made up of the requisite vertical sections. 3.11.3 of dust moisture and vermin proof construction. 3.11.4 easily extensible on both sides by the addition of vertical sections after removing the end covers. 3.11.5 of uniform height of 2400mm Boards (Max.). 3.11.6 provided with bus bars running all along the length of the switchgear in a seperate enclosure. 3.12 They shall be divided into distinct vertical sections each comprising. 3.12.1 A completely metal enclosed bus bar compartment running horizontally. 3.12.2 individual feeder modules arranged in multitier formation. 3.12.3 enclosed vertical busbars service modules in the verticle section. 3.12.4 a vertical cable alley covering the entire height.
3.12.5 a horizontal wire way for control wiring. 3.13 Metal sheet shall be provided between two adjacent vertical sections running to the full height of the switchgear except for the horizontal busbar compartment. 3.14 All equipment associated with a single circuit shall be housed in a seperate compartment in the fixed portion of the vertical section. The compartmet shall be enclosed on all sides with the withdrawable units in position or removed except on the cable alley door. The rear of the compartment shall be covered by metal or insulated sheets with slots to permit connection to the bus bars. All other covers shall be of sheet steel. 3.15 Control and selector switches, indicating instruments and lamps, and protective relays shall be mounted on the front doors of the respective compartments. Current transformers on circuit breaker controlled circuits shall be mounted on the fixed portion of the compartment. Current Transformers shall not be directly mounted on the buses. All other equipments pertaining to a circuit shall be mounted on a withdrawable chasis, which can be drawn out after discon- necting all power and control connections to the chasis mounted equipment. All control circuit connections to the chasis. 3.16 The individual compartment doors shall be provided with suit- able cut-outs as necessary to permit operation of circuit breakers and circuit isolating switch from the front without having to open the door. Such cuts outs shall be provided with spring loaded gaskets for the purpose of dust moisture and vermin proofing. 3.17 Suitable barriers shall be placed between circuit breakers
and all control protective and indication circuit equipment including instrument transformers. External cable connec- tions shall be carried out in a seperate cable compartment. Backelite sheets should be provided to cover live parts which get exposed after opening. 3.18 After isolation of the power and control connections of a circuit it shall be possible to safely carry out maintenance in a compartment with the bus-bars and adjacent circuit live. 3.19 Cable alleys shall be provided with suitable doors or remov- able panel covers. It shall be possible to safely carry out maintenance work on cable connections to any one circuit with the busbars and adjacent circuit live.
3.20 Removable panels shall be provided on rear side. It shall be possible for one persons to remove and fix the removable panel. 3.21 All doors shall be of the lift-off type, provided with concealed type hinges and captive screws. 3.22 Fully drawout type withdrawable chasis 3.22.1 All the withdrawable chasis shall be of the fully drawout type. 3.22.2 The withdrawable chasis shall be provided with a plate cover on the side corresponding to the cable alley of the compart- ment, except for a slot to permit wiring connections. 3.22.3 The withdrawable chasis shall move on suitable guides to facilitate easy withdrawable. 3.22.4 In this type of construction, it shall be possible to draw out the withdrawable chasis without having to unscrew or unbolt any connections to the equipment mounted on the withdrawable chasis. It should be fully compartmentalized
design. Both power and control connections shall be of the self aligning type withdrawable contacts. 3.23 The distribution board shall be designed in such way that all component equipment operate satisfactorily without exceeding their respective maximum permissible rises in temperate under ambient temperature conditions as specified elsewhere in this specification.
3.24 The A.C. Main distribution boards shall be complete with cable lugs, circuit numbers, earthing lugs, foundation bolts etc. to make the boards complete in all respect. 3.25 The overall dimensions of the boards shall be as small as practicable. The overall dimensions shall be clearly indi- cated by the tenderer. 3.26 Whenever required the boards shall be matched with other boards in the control room in respect of dimension, colour, appearance and arrangement of equipments on the front. 3.27 CONSTRUCTIONAL FEATURES OF OUTDOOR TYPE DISTRIBUTION BOARDS. 3.27.1 The A.C. auxiliary distribution board shall be outdoor type. 3.27.2 The distribution boards shall be sheet steel enclosed and dust, weather and vermin proof. Sheet steel used shall be of at least 12 SWG (2.64mm thick) size and be properly braced to prevent wobbling. 3.27.3 The enclosures of the boards shall provide a degree of protection of not less than IP 55 as per IS: 13947. The rain sheds shall be provided for draining of rain water. 3.27.4 The boards shall be of free standing or pedestal mounting type and provided with four holes of suitable diam. at the bottom for fixing foundation bolts. 3.27.5 The cabinets shall be provided with a hinged door with padlocking arrangement. In addition two switch board type
locks with common key shall be provided.
3.27.6 All doors, removable covers and plates shall be gasketed all around with neoprene gaskets of 15x6 mm cross sectional area(minimum). 3.27.7 Cable entries shall be from bottom. Suitable removable cable gland plate shall be provided on the cabinet for this purpose. Necessary number of screw on type brass cable glands shall be supplied fitted on to this gland plate. Cable glands shall be of double compression type suitable for earthing the armour, of cables. 3.27.8 A socket shall be provided at a suitable location in the board for connecting to the external 240 V single phase A.C interior illumination. 3.27.9 The distribution boards shall be complete with cable lugs, circuit numbers, earthing lugs, foundation bolts etc. to make the boards complete in all respect. 3.27.10 The overall dimensions of each type of distribution board shall be clearly indicated by the tenderer in his tender. 3.28.0 Mounting: 3.28.1 All equipments on front of panel shall be mounted flush. 3.28.2 The center line of operating handle/knob of switchgears and push buttons shall be at a hight not less than 350 mm or not more than 1900 mm from the ground level. 3.28.3 Equipments shall be mounted such that removal and replace- ment can be accomplished individually without interruption of service to adjacent equipment. Equipment mounted inside the panel shall be so located that the terminals of adjacent equipments are readily available without use of special tools.
3.28.4 Outdoor boards shall be mounted on Pedestal of 50x50x6 mm
angle frame. 4.0 BUSBAR:- 4.1 The bus bar chamber shall be so located that all the incom- ing and outgoing feeders can be connected on either side. The bus bar shall be of electrolytic tinned copper of size not less than 38mmx6mm for phases and 25mm x 6mm for neu- tral. The bus bars shall be of uniform cross section throughout the length upto the incoming terminals of the feeder circuit breaker/switch. The bus bar shall be mounted on insulators and the minimum clearance in air between the phases and the phases and earth shall not be less than 25 mm. All bus bars, shall be PVC sleaved and bustaps & joints shall be covered with removable type epoxy shrouds. Painting and taping shall not be consider as adequate shrouding. 4.2 Bus bars shall be adequately supported and braced to with stand the stresses due to the specified short circuit cur- rent for the associated switchgear. The maximum temperature of the bus bars when carrying rated electrical current shall not exceed 85 deg.C. Bus bar supports shall be made of epoxy resin cast of SMC/DMC. Risers/droppers to bus bars shall be of bolted type complete with washers electro galva- nised. Bus bars shall be thoroughly cleaned at the joint locations and suitable contact grease, if required, shall be
applied just before making a joint. The busbar chamber shall be of a completely enclosed.
4.3 All cable connections to the bus bars shall be carried out with the help of heavily tinned copper crimping type lugs bolted on to the bus bars. The hardwares used for the electrical connections shall be of non magnetic type. The
cable used for connections shall have multi strand copper conductor as conducting medium. The copper lugs and steel bolts used shall be provided for all connections so as to make the A.C. Distribution Board complete in all respects. 4.4 Busbar support shall be designed to with stand Breakers capacity of Board as specified. 4.5 For 400KV ACDB except as noted, all busbars shall be made of high conductivity electrolytic tinned copper. In main AC Boards provision for the extension of bus bars if required on both the sides should be made. 4.6 Busbar supports shall be of liberally designed to withstand breaking capacity as specified with non hygroscopit materi- al of SMC. Number of support insulators its arrangement and design to withstand the stresses due to short circuit cur- rent on the busbar should be submitted alongwith offer. 5.0 CONSTRUCTION AND SPECIAL REQUIREMENTS:- 5.1 All control fuses shall be of the HRC cartridge plug-in type. 5.2 It shall be possible to change fuses with the circuit alive without danger of contact with live metal. 5.3 In `A' type and 400kV Distribution Board, Air Circuit Break- ers of Electrically operated closing mechanism should be used for Incoming and Bus coupler. The interlocking of 2 incoming breakers and bus coupler should be as follows :- Under normal condition, each bus section shall get its supply from seperate 415 V, 3 phase, 4 wire supply for incomer breakers. In case either of these supplies fails, the Bus coupler breaker should close automatically. So that one incomer breaker will supply the load to both bus sec- tions. The bus coupler breaker should also trip as soon as
the failure of supply at the one incomer is restored. The change over shall be carried out by undervoltage relay connected to each bus section. The successful bidder shall furnish the Scheme of operation for approval of the purchas- er. 5.4 In `A' type and 400kV Distribution Board, incomer and bus coupler should be electrically operated Air Circuit Breakers and in `B' type Distribution Board, it should be provided with moulded case circuit breakers. All outgoings in `A' & `B'type should be MCCB/MCB as specified in Bill of Material. Incoming and bus coupler ACB for `A'type ACDB should be fixed type electrically operated (suitable for operation of 220V DC) door interlock type. The ACB and MCCB should conform to IS 2516. 5.6 400kV Circuit Breakers 5.6.1 Circuit breakers shall be- - of the airbreak drawout type - provided with motor wound spring charged stored energy type, operating mechanism/with a standby provision for mannual spring charging operation. - provided with mechanically operated targets to show 'open' and 'closed' positions of the circuit breaker. - provided with mechanically operated 'trip' push button, red in colour. - provided with locking facilities in the 'fully engaged', 'test' and 'isolated' position. - provided with 4 normally open and 4 normally closed, auxili- ary contacts exclusively for use of purchaser. - provided with 'red', 'green' and 'amber' indicating lamps to show 'closed', 'open' and 'autotrip' conditions of the circuit breaker when breaker operation is controlled by a
control switch. - provided with electrically operated closing mechanism with a standby arrangement for manual operation. 5.6.2 Circuit breakers shall be provided with the following interlocks. 5.6.2.1 It shall not be possible to plug-in a closed circuit breaker or to drawout a circuit breaker in the closed position. A circuit breaker that trips on attempted isolation will not be acceptable as a substitute. 5.6.2.2 It shall not be possible to operate a circuit breaker unless it is in the fully plugged-in, test or fully isolated position. 5.7 Circuit breaker closing and trip coils shall be rated for satisfactory operation on a control supply system indicated elsewhere in this specification. 5.8 Closing and trip coil shall operate satisfactorily under the following conditions of supply voltage variation: - closing coils : 85% to 110% of rated voltage. - trip coils : 70% to 120% of rated voltage. 5.9 The circuit breakers shall be fitted with the following devices: a) protection against overload with adjustable inverse definite minimum time (IDMT) settings. b) Protection against short circuit with built in time set- tings. c) Making current. d) Protection against under voltage. e) Shunt releases (for remote operation) f) Prevention of closing of the bus section breaker in the
event of tripping of source 1 or source 2 breaker on fault. 5.10 The above devices shall be suitable to coordinate satisfac- torily with the outgoing feeders equipped with MCCBs, MCBS, breakers,HRC fuses etc. complete details of the devices, relays, range of settings etc. offered shall be furnished by the tenderer alongwith his tender. 5.11 The rated continuous and the short circuit currents for the breakers shall not be less than those indicated in the drawings appended with this specification. 5.12 The range for short circuit setting shall be indicated by the tenderer in his tender. 5.13 Short circuit releases shall be provided with at least four adjustable time delay settings. If it is not possible to provide the specified adjustable current setting range for the short circuit released, shunt trip circuit breakers together with necessary protective relays shall be offered. However, the purchaser reserves full rights of accepting/rejecting this arrangement. 5.14 Facilities shall be provided for blocking the undervoltage release. 5.15 Each of the foregoing releases shall be provided with a single pole, double throw, potential free alarm contacts. 5.16 The current transformers shall be of tape insulated dry type ring type design having the technical particulars as 300/5A,15 VA, Class 1 and 800/5A, 15VA, class-I and instru- ment safety factor of 5. The current transformers shall conform to IS 2705. 5.16.1 It shall be the tenderers responsibility to co-ordinate the current transformer burden with the requirements of breaker releases and leads associated with that particular current transformer.
5.16.2 Test links shall be provided in both the CT secondary leads
to easily carry out current and phase angle measurement tests. 5.16.3 All current transformers shall be earthed through a separate earth link on the terminal block to permit easy measurement of the current transformer insulation resistance. 5.17 The indicating instruments shall be of 96mm x 96mm (4"x4" approx). square dial flush pattern, moving iron design, conforming to IS-1248. The voltmeter shall be scaled 0 to 500 V while the ammeter shall be scaled 0 to 300A and 800A. The indicating instruments shall conform to IS-1248. 5.18 The voltmeters and ammeters shall be provided with suitable selector switches to read phase to phase voltages and line currents. The selector switches shall be of rotary design with neat and compact configuration. They shall be mounted on modula doors. 5.18.1 The voltage supplied to the voltmeter as well as the energy shall be routed through HRC fuses rated for 10A, 500V. 5.19 RELAYS 5.19.1 The relays shall be- - enclosed in dust proof flush mounting drawout type cases. - accessible for setting and resetting from the front. - provided with positive acting hand-reset flag indicators visible from the front. 5.19.2 Access to setting devices shall be possible only after the front covers are removed. Access to resetting devices shall be external to the case. 5.19.3 Under voltage auxiliary relays shall be rated to operate to satisfactorily between 70% and 110% rated voltage. 5.19.4 I.D.M.T. relays shall be rated to operate satisfactorily
between 60% and 100% of rating. 5.19.5 Each relay shall be provided with at least two separate potential free contacts, for purchaser's use. 5.19.6 One alarm buzzer common to above protection shall be provided. 5.19.7 Make and type of relays shall be subject to the purchaser's approval. 5.20 The miniature circuit breakers shall have thermal and elec- tromagnetic releases in the event of overload and short cir- cuit, and shall be of the ratings given elsewhere in this specification. 5.21 On each incomer, three indicating lamps rated for 240V for the phases shall be provided with a push button. The indi- cating lamps shall be of LED type and of low watt consump- tion. The indicating lamps shall be of translucent lamp covers of RED & YELLOW AND BLUE colours. The indicating lamp shall be wired on the incoming side of the incomer ACB/MCCB. Each lamp shall be provided with a ballast resistor of suitable rating and wattage. 5.22 All identical equipments & corresponding parts shall be fully interchangeable without having to carryout modifica- tions. 5.23 Anodised aluminium lables shall be provided on all in- comers/outgoing feeders, instruments, indication lamps, switches etc. for their easy identification. 5.24 Provision shall be made for locking all switches and operat- ing handles in the `OFF' position and mechanical indiction shall be provided to indicate their position. 5.25 The switch board shall be suitable for extension at either end. The operating handle of any unit shall not be more than 1.95 meters from the floor and continuous lifting angles shall be provided to facilitate the installation of
the Boards. 5.26 Push button shall not project beyond the shroud or mounting to prevent inadvertent operation. 5.27 Heater shall have `ON-OFF' switch on the Board. 6.0 DRAWINGS:- 6.1 The tenderer shall submit 3 sets of drawing with the offer. 1. Outline general arrangement drawing showing dimension, weights, location of various equipment fittings and foundation layout. 2. Schematic drawings. 3. Technical leaflets of all equipment e.g. ACB, switch/fuse, meters, relays, lamps contactors switch etc. 4. The Scheme with U/V relays as specified in Clause 5.2 5. The installation arrangement of insulators & bus bars. 6. The construction details of opening and doors. The following drawings shall be submitted by the successful tender ers after the issue of letter of intent for scrutiny and approval to Superintending Engineer (220kV Planning) within 2 weeks time. 1. Drawing/technical leaflets as submitted during tender stage. 2. Sub-assembly drawings. 3. Wiring diagram. 4. Foundation Plan. 5. The Scheme with U/V relays as specified on Clause 5.2. 6. The installation arrangement of insulators & bus-
bars. 7. The construction details of opening and doors. 8. Instruction manuals which shall clearly indicate the installation checkups for commissioning, pre- ventive and trouble shooting maintenance. 7.0 GENERAL REQUIREMENT 7.1 The offer shall be complete with technical particulars, schedule of tests, , schedule of recommended spares, schedules of special tooks tackles, test reports and drawings/technical literature. The offer shall be in triplicate. Incomplete offers are liable for rejec- tion.
7.2 The offer shall be specify the detailed bill of materials for A.C. Distribution Board alongwith make of each component for technical evaluation. 7.3 The total height of A.C. Distribution Board A&B type should not exceed 2300mm.
7.4 All the type test reports, drawings, Quality Assurance Plan
and Bill of Material shall be submitted in Physical form
alongwith the offer.
8.0 ACCEPTABLE MAKE OF EQUIPMENT:- The following makes are preferred : ACB - L&T/GE/VOLTAS/CROMPTON/SCHNEIDER/C&S MCCB - L&T/SIEMENS/GE/VOLTAGE/CROMPTON/SCHNEIDER/C&S HRC FUSES - L&T/SIEMENS/STANDARD/GE. Indicating Instruments - AE/IMP Selector Switches - KAYCEE/SALZER/MICRON.rm70 Energymeters-SIMCO/REMCO/UNIVERSAL/ELECTRIC/GEC/L&T/HAVELLS (ELECTRONIC TYPE). Current Transformers - AE/IMP/INDCOIL/PRECISE/IE/ASHMOR
Indicating lamps - L&T/VAISHNO/MIMIC/TECHNIC./SIEMENS (LED type). Push Buttons - SIEMENS/L&T/VAISHNO/TECHNIC Cable Glands - BRACO/COMMENT/JENSON. Miniature Circuit breakers - MDS/STANDARD/ERGON/SCHNERDER. Copper lugs crimping type - DOWELL/JENSON Relays - GE/ABB/ESSEN/L&T/JVS 9.0 DETAILED BILL OF MATERIAL:- 9.1 The `A' type switchboard shall be provided with following components : 2 Number of Incomer feeders, each consisting of:
1 No. Air circuit breaker provided with motor wound spring charged stored energy type, operating mechanism with a standby provision for manual spring charging operation. Provided Mechanically operated targets to show open and closed positions. Provided Mechanically operated trip push button. Provided 4NO + 4NC contacts. Provided Red, Green, Amber indicating lamps to show closed, open and autotrip conditions of the breaker. Provided Electrically operated closing mechanism with a standby arrangement for manaul operation. Provided Thermal Current setting at 300A. Provided with 220 V DC motor operation. Provided with shunt trip, for remote operation. Provided with ON/OFF Pushing Buttons for breaker operation. 1 Detachable type neutral link. 3 300/5A, tape insulated current transformers rated 15VA class 1. 1 96mm x 96mm moving iron, voltmeter scaled 0 to 500V. 1 voltmeter selector switch.
1 (96mm x 96mm) moving iron, Ammeter scaled 0 to 300A. 1 Ammeter selector switch. 3 control fuses. 1 AC under voltage relay with setting from 70% to 100% of rated voltage. 1 DC control supply switch with HRC Fuses. 3 Indicating lamps (R-Y-B) 1 On demand push button. 2 cable glands each suitable for 120 sq.mm. 3 1/2 core PVC insulated unarmoured cable. 2 No. Outgoing feeders each consisting of : 1 150 A 3 pole MCCB having breaking capacity of 10KA 1 Detachable type neutral link. 1 Cable gland suitable for 70 Sq.mm. 3 1/2 core PVC insulat- ed unarmoured cables. 2 Outgoing feeders each consisting of: 1 100 A 3 pole MCCB having breaking capacity of 10KA. 1 Detachable type neutral link. 1 Cable glands suitable for 35 sq.mm. 3 1/2 core PVC insu- lated unarmoured cable. 2 outgoing feeders each consisting of: 1 63 A 3 pole MCCB having breaking capacity of 10KA. 1 Detachable type neutral link. 1 Cable glands suitable for 35 Sq.mm. 3 1/2 core PVC insulated unarmoured cable. 10 Outgoing feeders each consisting of : 1 TPN miniature circuit breaker rated 30 A, 500V of breaking capac- ity 9 KA.
1 Cable gland suitable for 10 sq.mm 3 1/2 core PVC insulated unar- moured cables.
8 Outgoing feeders each consisting of: 1 SP miniature circuit breaker rated 30 A, 250 V of breaking capac- ity 9 KA. 1 Cable gland suitable for 10 sq.mm. 2 core PVC insulated unarmoured cables. 1 Number Bus coupler consisting of: 1 Number Air circuit breaker provided with motor wound spring charged stored energy type, operating mechanism with a standby provision for manual spring charging operation. Provided Mechanically operated targets to show open and closed positions. Provided 4 No. + 4 NC contacts. Provided Red, Green, Amber indicating lamps to show closed, open and autotrip conditions of the breaker. Provided Electrically operated closing mechanism with a standby arrangement for manual operation. Provided Thermal current setting at 300A. Provided 220V A.C. motor operation. Provided Shunt trip, for remote operation. Provided ON/OFF push buttons for breaker operation. 1 Detachable type neutral link. Control voltage shall be suitable for both 110 & 220 V D.C.
9.2 The `B' type switch board will be provided with following compon- ents: The Miniature circuit breaker shall be having breaking capacity of 9 KA. 2 Incoming feeders each consisting of : - 1 300A two way switch of 10KA breaking capacity or castlelock & key arrangement. - 1 300 A 3 pole MCCB with door interlocking mechanism having break- ing capacity of 10KA. - 1 Detachable type neutral link. - 3 300/5A tape insulated current transformers rated 15 VA class. - 1 96 x 96 mm moving iron voltmeter scaled 0 to 500 volt. - 1 voltmeter selector switch. - 1 96 x 96 mm moving iron ammeter scales 0 to 300 A - 1 Ammeter selector switch. - Control fuses. - 3 Indicating lamps (R-Y-B) - 1 On demand push button. 2 Cable glands each suitable for 120 sq.mm 3 1/2 core PVC insulated unarmoured cable. 2 outgoing feeders each consisting of: 1 100 A 3 pole MCCB having breaking capacity of 10 KA. 1 Detachable type neutral link.
1 cable gland suitable for 70 sq.mm 3 1/2 core PVC insulated unar- moured cables. 2 outgoing feeders each consisting of : 1 63 A 3 pole MCCB having breaking capacity of 10KA. 1 Detachable type neutral link. 1 cable gland suitable for 35 sq.mm 3 1/2 core PVC insulated unar- moured cables.
8 outgoing feeders each consisting of : 1 TPN miniature circuit breaker rated 30A, 500V. 1 Cable gland suitable for 10 sq.mm 3 1/2 core PVC insulated unarmoured cables. 6 Outgoing feeders each consisting of: 1 SP miniature circuit breaker rated 30A, 250 V. 1 Cable gland suitable for 10 sq.mm. 2 core PVC insulated unarmoured cables. 10.0 TESTS:- The tests shall include but not limited to test listed below:- LIST OF TESTS TO BE CARRIED OUT (REF CL.NO.7.3) --------------------------------------------------------------- Sr.No. Name of the test Std.to which it conforms --------------------------------------------------------------- A) TYPE TEST 1. Short time current withstand IS 8623 test. 2. Temperature rise test IS 9676/IS 8623 3 Verification of degree of IS / 13947 protection test B) ROUTINE TEST 1. High voltage test (2500 V - Ac for 1 minute) 2. Insulation Resistance test (with 500 V DC megger) 3. Electrical control inter- - lock and sequential operation test. 4. Drawout module interchangability test. 5. Verification of wiring as - per approved schematic.
6. No Load test C. Type and routine test in- cluding but not limited to the following associated equipment. a) Test on A.C.B. IS 13947 b) Tests on fuse link IS 2208 c) Tests on A.B.Switches and IS 4047 composite switchfuse unit d) Test on MCCB & MCB IS 13947 All instruments used during testing shall be approved and if required shall be calibrated by a standard physical laboratory or such other body as may be approved by the purchaser. The switch boards shall be subjected to the following tests:- 1. Insulation Resistance tests before and after high voltage test. 2. High voltage test (2500 V per 1 minute). 3. Operation test. 4. Mechanical operation test. 5. Verification of wiring as per approved schematic. 6.Type test and routine tests shall be carried out on all accessories equipments as per relevant Indian Standards. Certified copies of the test certificates alongwith the dividual components test certificates shall be submit- ted wherever possible. No switch board shall be desp- atched without inspection and testing carried out to the satisfaction of the Board. 10.1 TYPE TEST 10.1.1 The A.C. Distribution Board offered, shall be fully type tested as per the relevant standards at laboratories which are accredited by National Accrediation Board of Testing & Calibration Laboratories (NABL) of Govt. of India to prove that the equipment offered meets the requirements of speci-
fication. In case equipment of the type and design offered, has already been type tested in NABL accredited laboratory, the bidder shall furnish two sets of type test reports alongwith his bid. These tests must have been conducted within precceding five years from the date of original NIT. In case these type tests are conducted earlier than preceed- ing five years all the type tests as per the relevant stan- dards will have to be carried out by the successful bidder in the NABL Accredited Laboratories at bidder's own cost before commencement of supply. For any change in the design/type already type tested and the design/type offered against this specification, the Purchaser reserves the right to demand testing without any extra cost. Irrespective of the above, the purchaser reserves the right to demand repea- tion of some or all the type tests in the presence of his representative at purchaser's cost. For this purpose the bidder should quote unit rates for carrying out each type test in the proforma enclosed as schedule `6'. 10.1.2 All route and acceptance tests as stipulated in the specified standards shall be carried out by the supplier in presence of purchaser's representative at supplier's cost. The acceptance tests, wherever possible, shall be performed on the completed Board. The number of samples to be sub- jected to acceptance tests shall be decided by the purchas- ers at the time of actual testing. 10.1.3 All the type tests shall be performed on the completed Board alongwith accessories. 11.0 QUALIFYING REQUIREMENTS The bidder shall fulfill the qualifying requirements as brought out below. Offer not meeting the specified
qualifying requirements would be rejected. QUALIFYING REQUIREMENT: a) The Bidder should have proven experience of not less than 5 years in design, manufacture, supply and testing at work for equipment/materials offered for equal or higher voltage class. The equipment/material offered by bidder should be in the successful operation at least for two years as on the date of submission of tender.
b) The bidder not meeting the requirement at (a) above can also participate provided they have a valid on going, collaboration with a manufacturer who has at least ten years experience in the design, manufacturer and testing of the equipment of the type and class offered, which have been in satisfactory service for a period of at least seven years. In such an event the bidder shall furnish alongwith his bid documentary evidence for the same and undertaking from bidder and collarborator acc- epting joint and several liability for all obligation under the contract. c) The Bidder should have adequate in house testing facil- ilities for conducting acceptance tests in accordance with relevant IS. d) The Bidder should have a minimum turn over of 60% of the value of the material offered in any one financial year during the previous three years. e) The bidder should furnish all the relevant documentary evidence to establish the fulfillment of the above requirements. f) The bidder who does not meet the above qualifying req- uirement of experience (clause a&b) may be considered for trial order subject to fulfilling the following requirements alongwith clause (c), (d) & (e). (i) Bidder should have proven experience of not less than 5 years in design, manufacturer, supply and testing at works for similar equipment/material 245kV voltage class. Further such equipment/ material (245kV class) should be in sucessful operation at least for two years as on date of submission the tender. (ii) The supplier should have type tested the equip- ment offered. (iii) The bidder shall have the basic infrastructure for the design, manufacture and supply of the items off- ered, like machinery technical know how, capacity etc. (iv) The purchaser is satisfied with designing, manufac- turing supplying and financial capacities of the bidder after inspecting the supplier's work.
g) Not withstanding any thing stated above, the purchaser decision in this regard will be final.
Schedule-1 GUARANTEED AND TECHNICAL PARTICULARS OF A.C.D.BOARD `A’ TYPE.
GUARANTEED AND TECHNICAL PARTICULARS OF A.C.D.BOARD `B’ TYPE. GUARANTEED AND TECHNICAL PARTICULARS OF A.C.D.BOARD
400KV MAIN BOARD. GUARANTEED AND TECHNICAL PARTICULARS OF A.C.D.BOARD. 400KV AUXILIARY OUTDOOR BOARD GUARANTEED AND TECHNICAL PARTICULARS OF A.C.D.BOARD
400KV MAIN AC LIGHTING BOARD (INDOOR).
SCHEDULE -2 SCHEDULE OF TESTS Tests as per this specification, IS and Manufacturers Stan- dards shall be performed. Detailed list of tests shall be indicated in this schedule. 1. Test during Manufacture : 2. Routine Tests on completion : of Manufacture. 3. Site Tests during Erection, : testing and commissioning. 4. Site tests for performance guarantee after commissioning 5. The reasons for not conducting any test/tests specified in the specification shall be clearly stated.
SCHEDULE – 3 DEVIATION FROM TECHNICAL SPECIFICVATION - DELETED AND NOT REQUIRED
SCHEDULE - 4 SCHEDULE OF RECOMMENDED SPARE PARTS FOR ERECTION, COMMISSIONING, MAINTENANCE AND TWO YEAR OPERATION FOR WHICH UNIT PRICES ARE QUOTED. SR.NO. DESCRIPTION UNIT PRICE DELIVERY REMARKS ------ ------------ ----------- --------- -------- 1. Nature of spare be indicated by a letter as applicable. 2. Consumable spare. 3. Emergency spares. 4. Susceptible to damage during erection testing & commission- ing.
SCHEDULE-5 TENDERER'S EXPERIENCE Tenderer shall furnish here a list of similar jobs executed by the him to whom a reference may be made by Purchaser, in case he considers such a reference necessary. Sr.No. Name & Description Value of Client Person to whom of work. Work. ref. may be * made. ------ ------------------- -------- ------- ---------- (a) (b) (c) (d) (e)
SCHEDULE : 6 SCHEDULE OF TYPE TEST CHARGES Bidder's Name & Address To ______________ --------------------------------------------------------------- Sr. Description of the Type test Test charges of each No. type & rating of equipment offered. -------------------------------------------------------------
