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| 1 | Supplying, laying, jointing, testing and commissioning of 11 kV grade heavy-duty HT underground cable, XLPE insulated, screened, aluminium conductor, armoured and PVC sheathed, suitable for earthed system, 3 core 70 sq.mm aluminium conductor, conforming to IS:7098 (Part-II), laid in trenches / fixed to walls / laid in ducts or pipes as required, including making joints and terminations, testing, commissioning, and dismantling and removal of existing unserviceable HT cable, complete all as specified and as directed by the Engineer-in-Charge. |
| 2 | Dittoas Item No. 1.00 above, but 3 core 185 sq.mm aluminium conductor. |
| 3 | Ditto as Item No. 1.00 above, but 3 core 240 sq.mm aluminium conductor. |
| 4 | Dittoas Item No. 1.00 above, but 3 core 300 sq.mm aluminium conductor. |
| 5 | Ditto as Item No. 1.00 above, but 3core 400 sq.mm aluminium conductor. |
| 6 | Material and labour for indoor type heat-shrinkable HT cable end termination, suitable for 6.6/11 kV grade, XLPE insulated aluminium conductor power cable, 3½ core (3 core + reduced neutral) of size 50 to 95 sq.mm, complete with all termination accessories including stress control tubes, insulation tubes, sealing components, lugs, glands, ferrules etc., including dismantling and removal of existing old HT cable end termination of any description, complete all as specified and as directed by the Engineer-in-Charge. |
| 7 | DItto as Item No. 6.00 above, but for cable size 120 to 185 sq.mm. |
| 8 | Dittoas Item No. 6.00 above, but for cable size 240 to 300 sq.mm. |
| 9 | Dittoas Item No. 6.00 above, but for cable size 400 sq.mm. |
| 10 | Material and labour for heat-shrinkable straight-through joint for HT underground cable, suitable for 6.6/11 kV grade, XLPE insulated aluminium conductor power cable, 3½ core (3 core + reduced neutral) of size 240 to 400 sq.mm, including supply and installation of complete jointing kit comprising stress control tubes, insulation tubes, semi-conductive screens, sealing components, armouring continuity, ferrules, connectors, protective sleeves etc., including dismantling and removal of existing old straight-through joint / jointing material of any description, complete all as specified and as directed by the Engineer-in-Charge. |
| 11 | Ditto as per Item No. 10.00 above, but for cable size 120 to 185 sq.mm. |
| 12 | Supply and fixing in replacement of unserviceable MCCBs of the following ratings, including dismantling of existing MCCBs, making necessary electrical connections with suitable lugs, testing and commissioning, complete all as specified and as directed by the Engineer-in-Charge. |
| 13 | MCCB, 63 Amps, 25 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 14 | MCCB, 100 Amps, 25 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 15 | MCCB, 125 Amps, 25 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 16 | MCCB, 200 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified |
| 17 | MCCB, 250 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 18 | MCCB, 400 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 19 | MCCB, 800 Amps, 50 kA breaking capacity, 4-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 20 | MCCB, 630 Amps, 50 kA breaking capacity, 4-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase, 4-wire AC supply system, complete all as specified. |
| 21 | MCCB, 400 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase AC supply system, complete all as specified. |
| 22 | MCCB, 200 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase AC supply system, complete all as specified. |
| 23 | MCCB, 250 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase AC supply system, complete all as specified. |
| 24 | MCCB, 630 Amps, 36 kA breaking capacity, 3-Pole, thermal adjustable trip (0.8–1.0 × In), suitable for 415 V, 50 Hz, 3-phase AC supply system, complete all as specified. |
| 25 | Material and labour for rewinding of LT side winding with copper strip of suitable size and gauge, fixing the rewound coil in position in the core assembly, making electrical connections as per existing design and pattern, including supply and application of insulation materials, varnishing, baking/drying as required, testing after rewinding, complete all as specified and as directed by the Engineer-in-Charge. |
| 26 | Material and labour for rewinding of HT side winding with super-enamelled copper wire of suitable size and gauge, fixing the rewound coil in position in the core assembly, making electrical connections as per existing design and pattern, including supply and application of insulation materials, varnishing, baking/drying as required, testing after rewinding, complete all as specified and as directed by the Engineer-in-Charge. |
| 27 | Material,labour replacing of transformer for (i) Disconnecting the HT/LT side and earthing connections of the transformer, (ii) Lifting transformer with the help of crane, loading on suitable veh to transport it to the workshop at and Unloading at workshop for servicing complete of transformer capacity up to 1000 KVA(i) Receive & unload the transformer(ii)Drainout oil from chamber.(iii) Opening top cover, disconnecting winding connection from bushings and taking out carefully core assembly complete withwinding.(iv)Checking compactness of core & tightening the same where required.(v) Chemical washing of winding to remove dirt,dust & carbon particles(vi)Cleaning of oil tank to remove oil sludge followed by painting of inner surface of tank with zinc chromate base paint (vii) Refixing of core & winding assembly and making connection with HT/LT bushing .(viii)Replacement of worn out gaskets & nut/bolts.(ix) Refilling of oil duly filtered/dehydrated/fresh oil (to be measured& paid separately under respective item).(x) Windings to be done with new copper conductors of core and phase. All other insulation material used will be new one (to be measured& paid separately under respective item).(Note: Overhauling of transformer should be done on existing installation place on same days) |
| 28 | Material,labour replacing of transformer for (i) Disconnecting the HT/LT side and earthing connections of the transformer, (ii) Lifting transformer with the help of crane, loading on suitable vech to transport it to the workshop at and Unloading at workshop for servicing complete of transformer capacity1001 KVAto 2500 KVA (i) Receive & unload the transformer(ii)Drainout oil from chamber.(iii) Opening top cover, disconnecting winding connection from bushings and taking out carefully core assembly complete withwinding.(iv)Checking compactness of core & tightening the same where required.(v) Chemical washing of winding to remove dirt,dust & carbon particles(vi)Cleaning of oil tank to remove oil sludge followed by painting of inner surface of tank with zinc chromate base paint(vii) Refixing of core & winding assembly and making connection with HT/LT bushing .(viii)Replacement of worn out gaskets & nut/bolts.(ix) Refilling of oil duly filtered/dehydrated/fresh oil (to be measured& paid separately under respective item).(x) Windings to be done with new copper conductors of core and phase. All other insulation material used will be new one (to be measured& paid separately under respective item).(Note: Overhauling of transformer should be done on existing installation place on same days) |
| 29 | M&L for shifting transformer upto 2500 kVA, 6.6-11KV/433V, from location inside Dockyardand connecting HT/LT side to provide temporary supply during repair of transformer and disconnectingHT/LT connections before installations of repaired transformer location within Naval Dockyard all as directed. |
| 30 | M & L in repairs HV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for 500 to 1600 KVA Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step up of any make / model complete all as directed |
| 31 | M & L in repairs HV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for above 1600 KVA Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step upof any make / model complete all as directed |
| 32 | M & L in repairs LV side Brass studs threaded both ends of suitable size and length including metal and rubber rings,. Bolts washer, etc. suitable for 500 to 1600 KVA Transformer ( Indoor or Outdoor type), 6.6-11KV/433V, step down/ step up, of any make / model complete all as directed |
| 33 | M & Lin repairs LV side Brass studs threaded both ends of suitable size and length including metal and rubber rings, Bolts washer, etc. suitable for above1600 KVA to 2500 KVA Transformer and above Outdoor type, 6.6-11KV/ 433V step down/ step up ) of any make / model complete all as directed |
| 34 | S & F in repairs HV/LV side Porcelain Bushing / Insulator of suitable size suitable upto2500KVA Transformer, Outdoor type, 6.6- 11KV/ 433V , step down/step up, of any make / model complete all as directed. |
| 35 | S & F in repairs Silica Gel container with first fill of Silica Gel transparent type suitable for transformer of capacity 500 KVA to 1250 KVA complete all as directed |
| 36 | S & F in repairs Silica Gel container with first fill of Silica Gel transparent type suitable for transformer of capacity above 1250 KVA to 2500 Kva compete all as directed |
| 37 | Material and Labour forheating, filtration and dehydration of transformer oil as per IS : 10028 (Part-III) 1981, Para 5.2 with dehydration/ filtration plant to a test result of 48 KV/min for distribution transformer and 80 KV/ minute for power transformer for 2.5 mm gap, complete all as specified and as directed.Note:-(a) Any damage occurred to transformer during the process of dehydration, shall be made good by the contractor to the entire satisfaction of the Eng-in-charge at his own expenses and submit test report after dehydration.b) Testing machine and Transformer oil filtration plant as well as dehydration facility will provided by the contractor.c) New transformer oil shall be measured and paid separatelly under respective items |
| 38 | Testing of transformer oil as per IS : 335 and IS 12463 for dielectric strength of transformer installed in various site, including submission of test report complete all as specified and as directed. |
| 39 | Supply only Transformer Oil as per IS 335/93 dehydrated to give BDV value not less than 50 KV when tested with 2.5mm gap electrode complete all as specified. |
| 40 | Supply only Silica Gel suitable complete all as specified. |
| 41 | Supply and fixing in replacement of silica gel breather, complete with fresh blue-coloured silica gel, suitable for transformers of capacity 500 kVA to 1000 kVA, including all accessories, testing, and making operational, complete all as specified and as directed by the Engineer-in-Charge. |
| 42 | Supply and replacement of HT/LT side cable box cover plate, fabricated from 16 SWG MS sheet, including nuts, bolts, and washers, suitable for indoor/outdoor type transformers of capacity 50 kVA to 100 kVA, complete all as specified and as directed by the Engineer-in-Charge. |
| 43 | Labour only for disconnecting, dismantling, and carefully taking down the transformer from existing plinth/sub-station, shifting and transporting it to another site at pole structure/plinth/sub-station, and re-erection and reconnection to the new system from HT and LT sides, including all handling, alignment, and making operational, complete all as specified and as directed by the Engineer-in-Charge. |
| 44 | M & L for replacement of the following for 250 kVA to 2500 kVA,6.6/6.6-11KV/ 433V transformer:- |
| 45 | Oil level indicator |
| 46 | Tap changer |
| 47 | Dial type 100mm dia oil temp meter |
| 48 | Air release plug assembly |
| 49 | Drain plug |
| 50 | Gun metal oil drain valve 25mm /40mm |
| 51 | M&L for spray painting of indoor/outdoor type transformers, including step-up / step-down transformers of 6.6 kV / 6.6–11 kV / 433 V, installed at various locations within the ND area, after thorough scraping and removal of existing corroded paint and rust, filling of cavities/imperfections, surface preparation, and applying one coat of silicon acrylic heat-resistant paint of approved quality and approved colour.The item also includes writing/marking of details such as SM/MES number, rating, and other identification particulars, complete all as specified and as directed by the Engineer-in-Charge.Rates shall be applicable for the following transformer capacities: |
| 52 | Transformers of capacity 25 kVA to 500 kVA |
| 53 | Transformers of capacity above 500 kVA and up to 1000 kVA |
| 54 | Transformers of capacity above 1000 kVA and up to 1600 kVA |
| 55 | Transformers of capacity above 1600 kVA and up to 2500 kVA |
| 56 | Supply and fixing of transformer protection relay suitable for transformers up to 2500 kVA, including mounting, wiring, termination, testing, and commissioning, complete all as specified and as directed by the Engineer-in-Charge. |
| 57 | Supply and fixing of limit switch suitable for transformers up to 2500 kVA, including mounting, wiring, termination, testing, and making operational, complete all as specified and as directed by the Engineer-in-Charge. |
| 58 | Supply and erection of heater units suitable for transformers up to 2500 kVA, including mounting, wiring, termination, testing, and commissioning, complete all as specified and as directed by the Engineer-in-Charge. |
| 59 | Supply and fixing of temperature sensor (RTD type) suitable for dry-type transformer up to 2500 kVA, including connectors, mounting accessories, wiring/termination as required, testing, and commissioning, complete all as specified and as directed by the Engineer-in-Charge. |
| 60 | M&L for Plain Cement Concrete (PCC) 1:3:6 (Type C-2) using 40 mm graded stone aggregate, in stay foundation, filling, and mass concrete, including mixing, laying, compaction, curing, and all incidental works, complete all as specified and as directed by the Engineer-in-Charge. |
| 61 | Material and labour for laying GI tubing, medium grade, 100 mm diameter, for cable protection in road/floor, including cutting, bending, jointing, alignment, refilling/making good disturbed surfaces, complete all as specified and as directed by the Engineer-in-Charge. |
| 62 | M&L for checking and testing of transformers of any size, including visual inspection and electrical tests such as earthing continuity, insulation resistance, and other necessary tests, using requisite tools and plants, for locations across the Naval Dockyard, complete all as specified and as directed by the Engineer-in-Charge. |
| 63 | Supply, fixing, and testing in repair of Potential Transformer (PT) of capacity 11/6.6 kV / 110-110 V, Class 1, 3-phase, burden 100/50, including copper busbars (RYB), heat-shrinkable sleeves, connections to control panel, testing and commissioning, complete all as specified and as directed by the Engineer-in-Charge. |
| 64 | Supply ofMaintenance Free Grounding Solution set comprising of High tensile low carbon steel rod of 3 Mts length & 32 mm dia with 250 micron ( average ) molecularly bonded copper on the outer surface to confirm with requirements of UL467 along with Back-fill compound strictly be a Carbon based conductive concrete type which has a resistivity of less than 0.12 Ohm Mtr as per Clause 14.5D of IEEE : 80 standard. Back-fill compound should be electronically conductive ( Like in metals ) and should not depend on moisture for conduction. compound shall be supplied in 50 Pound Bag. ( 1 Bag required per earthing set). Back-fill comound should be environment friendly, should solidify when mixed with water and set like concrete and should not leach / diffuse into the ground. A suitable earth terminaton clamp should also be suppliedNote : Back-fill compund shall not be mixed with any soil while pouring in the bore hole. |
| 65 | Material and labour for providing and laying GI strip earth continuity conductor of size 32 mm × 6 mm, laid buried in ground, or drawn through pipe, or fixed on wall with suitable saddles/clamps, including cutting, bending, jointing, nuts, bolts, washers, and all incidental works, complete all as specified and as directed by the Engineer-in-Charge. |
| 66 | M&L for repairs to indoor/outdoor type panel board sheet-metal enclosure of any size, as per site requirement, including dismantling and tinkering, and replacement of fully corroded sheet-metal parts such as base plate, top plate, front cover, side covers, etc., with MS sheets of appropriate gauge.The work includes cutting, bending, forming to match existing dimensions, welding/brazing, assembling, replacement of all nuts, bolts, and hardware, proper re-fixing of MCBs/MCCBs, proper dressing and lacing of cables, providing and fixing cable glands, fixing control wiring with suitable sheet-metal screws, and painting the complete enclosure with two coats of synthetic enamel paint over one coat of zinc chromate primer.The item also includes writing/marking of feeder identification on the front side of the panel, complete all as specified and as directed by the Engineer-in-Charge. |
| 67 | Maintenance, servicing, and cleaning of RMU, busbar, and VCB/OCB unit of 6.6/11 kV VCB panel of capacity 400 Amp to 1600 Amp, of any make and type, including taking out the breaker from the panel, cleaning of all components using approved cleaning agent (CTC/contact cleaner) and clean cloth, removal of carbon deposits from moving contacts, and greasing of all moving parts of the VCB.The work further includes checking of the complete operating mechanism for smooth and correct functioning, recording observations, and reporting any defective parts, complete all as specified and as directed by the Engineer-in-Charge.Note:Replacement of defective parts of the VCB, if required, shall be measured and paid separately under the relevant item. |
| 68 | Supply and fixing in replacement of HT VCB copper bus bar, air-insulated, of appropriate size and length, including providing and fitting 11 kV grade Polypropylene (PP) power line protector / insulating sleeve, designed to insulate bare bus bars and prevent accidents due to electrocution or ionisation.The insulating sleeve shall have excellent UV resistance, abrasion resistance, fire-retardant properties, high dielectric strength, and shall be maintenance-free, including all necessary fittings, testing, and making the system operational, complete all as specified and as directed by the Engineer-in-Charge. |
| 69 | Taking out, testing, and servicing of IDMT / normal protection relay from panel, including opening of relay for repair and servicing, decarbonising of contact points, cleaning with CRC/contact cleaner, cleaning of internal components using vacuum cleaner, and repair or replacement of defective parts, if any, found during servicing.The item further includes reassembling, calibration, and testing of the relay for tripping time setting, over-current setting, and earth-fault setting, ensuring proper operation and reliability, complete all as specified and as directed by the Engineer-in-Charge.Note:All parts, consumables, and components required to restore the relay to fully serviceable condition shall be deemed to be included in the quoted rate. |
| 70 | Attending breakdown and electrical complaints of any nature, including call-on repairs of VCB, RMU, HT/LT cables, LT panels, ACBs, and MCCBs at any location within the Naval Dockyard, by deploying qualified electrician(s) and helper(s).The work includes inspection to identify faults such as flashover, burning, overheating, or loose/damaged contacts, cables, or terminations in VCB, RMU, LT Panel, MCCB, ACB, or any type of cable, isolating and disconnecting electrical connections as required, cleaning and decarbonising of contacts using suitable cleaning agents, restoring connections, and re-energising the system to normal operation.The contractor shall inform the JE / Engineer-in-Charge before commencement and after completion of the work, and restore the power supply after ensuring safe and satisfactory completion, complete all as specified and as directed by the Engineer-in-Charge. |
| 71 | M&L for setting of 3-phase over-current and earth-fault relay by secondary current injection to the associated CTs using suitable testing equipment, for over-current and earth-fault protection, including high-set and low-set settings, checking and verification of all other relay parameters to ensure correct and sequential tripping.The work includes disconnection of incoming or outgoing HT XLPE cable connections from VCB CTs, and reconnection of cable ends at existing terminals after completion of relay setting, including testing, recording of results, and making the system operational, complete all as specified and as directed by the Engineer-in-Charge.Notes:(a) Relay settings shall be carried out considering the corresponding settings of upstream and downstream VCB relays and the recorded maximum demand of the VCB. Any further adjustment of settings, as many times as required, shall be deemed to be included in the quoted rate.(b) Recovery shall be effected at double the quoted rate if the VCB fails to trip for the indicated fault and group tripping is recorded. |
| 72 | Supply and laying of asphalt cold mix bituminous material in bags (each bag of 25 kg) for filling road patches/potholes at a depth not less than 50 mm, including preparation of the surface, compaction, and all incidental works, complete all as specified and as directed by the Engineer-in-Charge. |
| 73 | Supply and fixing in repair of Air Circuit Breaker (ACB) of capacity 1600 Amp, 4 Pole, 50 kA, manual draw-out type, equipped with microprocessor-based release, conforming to IS/IEC 60947-2, including all necessary accessories, testing and commissioning, complete all as specified and as directed by the Engineer-in-Charge.Note: Any modification required for connecting the ACB shall be carried out by the contractor at no extra cost. |
