Tender For Repairs Maintenance Servicing Of Transformer 33 11 Kv, Vcbs, Calibration, Ug Cable, Inverters, Poles And Connected Ht Works At Ph-I (Rupa, Gachcham, Birpur, Dp, Bomdila) At Ge Tenga
Tender Overview
Project Description
Tender For Repairs Maintenance Servicing Of Transformer 33 11 Kv, Vcbs, Calibration, Ug Cable, Inverters, Poles And Connected Ht Works At Ph-I (Rupa, Gachcham, Birpur, Dp, Bomdila) At Ge Tenga
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 23-Jul-2026 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 30-Jul-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | S&F in Replacement for switch air break gang operated triple pole out door type unit on HT 11 KV 50 cycle AC suitable for current rating upto 200 Amps mechanically operated mounted on insulators (12 insulators) with Drop out fuse unit frame with operating mechanism worked from ground level with earth switch and including locking arrangement complete all as specified and as directed. |
| 2 | S & F in replacement of 11 KV Silicon polymeric composite Disc insulator B&S type incl galvanised mild steel strap (38 mm X 5 mm), insulator bolts 20 mm dia with suitable washers and nut, suitable for working pressure upto 12 KV as per IS 731/1971 or latest amendment complete all as specified and as directed |
| 3 | S & F in replacement of 11 kv silicon polymeric pin insulator, including one galvanized mild steel spindle two galvanised iron washers and one galvanised iron nut,11000 volt grade suitable for working pressure 12 KV as per IS 731/1971 or latest amendment complete all as specified and as directed . |
| 4 | S & F in replacement of 11 KV,10kA lightning arrestors non-linear type complete with fittings, transmission class complete all as specified and as directed . |
| 5 | S & F in replacement of 33 KV,10kA lightning arrestors non-linear type complete with fittings, transmission class complete all as specified and as directed . |
| 6 | Supply and fix in replacement HT 33 KV out door type gang operated isolator suitable for horizontal mounting fixed type complete with 9 insulators and with earth switch upto 400 Amps complete all as specified and as directed. |
| 7 | Supplying and laying as in replacment synthetic Rubber insulated mats 2.5 mm thick for voltage upto 11 kv for electrical purpose as per (IS 15652-2006), (superseding IS 5424) suitable for electrical shock safety of size 2.5 mm thick for voltage upto 11 kv (size 2 x 1 m) (2 m x 1 m). complete all as specified and as directed. |
| 8 | Supplying and laying as in replacment synthetic Rubber insulated mats 3.0 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of size 3.0 mm thick for voltage upto 33 kv (size 2x1m). complete all as specified and as directed. |
| 9 | M&L in replacement for aluminium conductor, steel reinforced ACSR of any size/description on HT poles/lines incl stringing, tightening, binding to insulators with aluminium wire making and connecting jumpers, connections etc incl connecting, commissioning and testing complete all as specified and as directed. |
| 10 | Material and labour in replacement of Cross arms, bracings, supports,clamps and back plates fabricated from structural steel sections including nuts, bolts, washers,welding, bending cold or hot,drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of paint complete all as specified and as directed by Engineer-in-Charge. |
| 11 | M&L in replacement for stay assembly of MS galvanised stay plate (230 mm X 230 mm X 6 mm) thick MS galvanised tay rod 20 mm dia with nut 100 cm long MS galvanised stay bow 40 cm long and 14 mm dia with 2 Nos galvanised thimble with and incl all fittings all as specified in SSR 2009 Part I complete all as specified and as directed. Note - Excation, earth work, PCC foundation etc, loop type insulator shall be measured and paid separately. |
| 12 | M&L in replacement for galvanised stay strand 7/ 4 mm complete all as specified and as directed. |
| 13 | Supply, laying & testing in replacement of cable XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty)with stranded aluminium conductor, 11000 volts grade, of size 3 core 95 sq mm complete all as specified and as directed. |
| 14 | Excavation in trenches in any type of soil not exc 1.5 mtrs wide and not exc 1.5 mtr in depth for laying of pipe/ cables/ poles etc and getting out hard & densile soil complete all as specified and as directed. |
| 15 | Returning fitting in any type of soil including spreading leveling watering and well ramming in layers n.exc 25 cm complete all as specified and as directed. |
| 16 | Removing excavated soils to a distance n.exc. 50 mtr and depositing where directed at a level not exc 1.5 m above the starting point complete all as specified and as directed. |
| 17 | M & L for laying of fine, clean sand (river sand) free from sharp materials and stone particals in trenches for cushioning of cable 8 cm thick under cable and 15 cm thick over the cable including gently punning complete all as specified and as directed. Note:- The total thickness of sand shall be measured 18 cm after punning, Low grade aggregate sand should not be used. |
| 18 | Supply and laying un-reinforced precast.concrete cable protection cover of class HV, type-1, flat size (300 mm x 180mm x 40 mm) all as per SSR Part I complete all as specified and as directed. |
| 19 | Supplying and laying reinforced precast concrete cable cover, class EHV, type 1 with peak, size (450 mm x 230 mm x 50 mm) complete all as specified and as directed. |
| 20 | Supply and laying galvanised tube light grade ISI marked of size 100 mm dia incl all fittings in trenches/fixed on pole/wall/floor or laid in position complete all as specified and as directed. |
| 21 | M & L for earthing complete with galvanized steel earth plate electrode (60 x 60cm x 6 mm) thick burried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt upto 1.5 meter depth all around the earth plate and connected to earth lead of GI strip (32 x 6 mm) by means of bolts, nuts, check nuts and washers of galvd iron or steel and thimbles and other end of the earth lead connected to equipments and watering pipe 20mm bore GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete (1:3:6) type C-2 and RCC cover and testing of earthing complete and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 also including making test point for testing of earthing made out of gun metal or phosphorous bronge size (75 x 75 x 25 mm) complete all as specified and as directed. . |
| 22 | M&L earthing complete with copper earth plate electrode (600 mm x 600 mm x 3.15 mm) thick,thick burried directly in ground vertically to a depth not less than 2.25 mtr deep below GL with top edge of the plate not less than 1.5 mtr below normal GL and connected to earth plate . Earth plate surrounded by 15 cm thick packed layers of charcoal dust and common salt upto 1.5 meter depth all around the earth plate and connected to earth lead of copper strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of GI or steel and thimbles and other end of the earth wire connected to DB and protected by galvanized iron or steel pipe light grade 50 mm bore and water pipe 20 mm bore GI medium grade with funnel and wire mesh, including all necessary excavation and earth work PCC chamber in cement concrete (1:3:6) type C-2 and RCC cover and all as shown in electrical plate No 3 of MES schedule Pt I of 2009 and also including making test point for testing of earthing made out of gun metal or phosphorous bronge size (75 x 75 x 25 mm) complete all as specified and as directed. |
| 23 | M&L for disconnecting power supply from HT VCB /OCB/RMU of capacity 33 KV for repair works , taking out trolly unit & complete servicing of the VCB through decarbonising , cleaning the male /female isolating contacts, lubricating moving part , cleaning with CRC removing dust particles from bus bar chamber, spout gear mechanism and moving parts, repair to motor charge spring mechanism, tightening all nuts and bolts of entire trolley , checking proper operation of trolly including checking of all electrical parts and replacing all unserviceable part , inserting trolley inside and testing on load complete all as specified and as directed. |
| 24 | M&L for disconnecting power supply from HT VCB /OCB/RMU of capacity 11 KV for repair works , taking out trolly unit & complete servicing of the VCB through decarbonising , cleaning the male /female isolating contacts, lubricating moving part , cleaning with CRC removing dust particles from bus bar chamber, spout gear mechanism and moving parts, repair to motor charge spring mechanism, tightening all nuts and bolts of entire trolley, checking proper operation of trolly, including servicing, calibration of all type control relays such as digital earth fault/over current relay, IDMT relay master trip relay other aux relays etc fixed on 11 KV VCB/OCB/RMU for over current and earth fault settings with all respects and making all tripping setting time delay setting for smooth functioning of all controls of HT panels including servicing of CTs, PTs, testing with primary injection test kit for load settings and timings of relays setting tripping and closing of VCB/RMU/SF-6 breakers complete checking of all electricals parts and replacing all unservicable part, inserting trolley inside and testing on load complete all as specified and directed. |
| 25 | M & L for disconnecting & taking out old/defective Current Transformer from 11 KV VCB panel, S & F installation & testing of CT, indoor, resin cast epoxy type of 18.4 KA/Sec having ratio 100/50/5+5 Amps or 60/5+5A or 30/5+5A suitable for metering and protection equipment installed on control panels including connection with control cables as per site requirement upto control panels terminals block and fixing on bus bar section having class of accuracy 5P 10 burden 15 VA. complete all as specified and as directed. |
| 26 | M & L for disconnecting & taking out old/defective PT from 11 KV VCB panel, S & F installation & testing of PT, indoor, comprising of three limbs single phase resin cast PTs of 11KV/110 Voltage ratio, 50 Hz type 200VA class-I accuracy suitable for protection & metering incl making suitable arrangement for fixing in existing VCB panel and connection complete all as specified and as directed. |
| 27 | Supply & fix in replacement digital four pole non directional microprocessor based 3 over current + 1 Earth fault with instantaneous trip relay with high set , Aux. supply 20-110 volt DC and setting of time delay, overload and earth fault complete with all connection and testing on load including fabrication works to HT panel for fixing of new relay and wiring connection complete all as specified and as directed |
| 28 | S & F in replacement of vacuum interrupter , suitable for 11 KV HT V.C.B 11 KV 630 /800 Amps capacity 520/SP complete all as specified and as directed. |
| 29 | S & F in replacement fixed contact block (Shower Contact) of V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 30 | S & F in replacement moving contact block ( VCB Panel Spout) of V.C.B 11 KV 630 /800 Amps capacity complete all as specified and as directed. |
| 31 | S & F in replacement complete mechanism of V.C.B 11 KV 630/800 Amps capacity including testing & puting on load all as specified and directed. |
| 32 | S & F in replacement closing coil assembly 24/ 110 volts DC for HTV.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 33 | S & F in replacement tripping coil assembly 24 / 110 volts DC for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 34 | S & F in replacement auxillary switch (6 No + 6NC) for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 35 | S & F in replacement Bushing separator for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 36 | S & F in replacement charging handle for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 37 | S & F in replacement charging small gear (pinion) for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 38 | S & F in replacement charging big gear for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 39 | S & F in replacement rotary switch ampere meter for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 40 | S & F in replacement rotary switch volt meter for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 41 | S & F in replacement indication lamp R, Y, B for HT V.C.B 33/11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 42 | S & F in replacement ammeter of V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 43 | S & F in replacement voltmeter of V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 44 | S & F in replacement multifunction meter of V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 45 | S & F in replacement Tripping shaft for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 46 | S & F in replacement Supporting Rod for HT V.C.B 11 KV 630/800 Amps capacity all as specified and as directed. |
| 47 | S & F in replacement Shocker Rod for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 48 | S & F in replacement charging motor for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 49 | S & F in replacement Master trip relay for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 50 | S & F in replacement PT Fuse for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 51 | S & F in replacement HRC Fuse 6amp/4amp for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 52 | S & F in replacement Hooter for HT V.C.B 11 KV 630/800 Amps capacity complete all as specified and as directed. |
| 53 | Supply and install as in repair/replacement of battery dry type battery of capacity 2 Volt and 100 AH complete all specified and as directed. |
| 54 | Supply only electrical contact cleaner, CRC bottle of capacity 500 ml, applicable for electric connectors, relays, circuit breakers, transformers, switch gears, motors, communication assemblies, electronics parts complete all as specified and as directed. |
| 55 | Supply only as in replacement battery charger 24Volt suitable for charging lead acid type battery complete all as specified and as directed. |
| 56 | Supply and Laying Aggregate Hard core, broken to gauge n exc 63 mm with levelling with layer not exceeding 100mm in depth within the paremeter of 33 kv main receiving station GIS Bay switch yard 33 kv complete all as specifed and as directed. |
| 57 | S&F in renewal of breather assembly 1 Kg of 11/.433 KV stepdown transformer by replacing old breather assembly with new one including fixing in proper manner for transformer complete all as specified and as directed. |
| 58 | S&F in renewal of breather assembly 5 Kg of 33/11 KV stepdown transformer by replacing old breather assembly with new one including fixing in proper manner for transformer complete all as specified and as directed. |
| 59 | M & L for ON load centrifuging and dehydration including filtration and cleanning of transformer oil by dehydration machine electric operated without any shutdown of transformer including testing oil sample before and after dehydration and dehydration and filtration oil complete all as specified and as directed. Note :- (i). Dielectric strength of oil after dehydartion shall be more than 45 KV at 2.5 mm gap on load (ii) Transformer oil required for top up shall be measured and paid separately. (iii) Contractor have to arrange the dehydration machine and testing kit from his own resources without any extra cost.(iv) The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate. |
| 60 | Supply and filling Transformer oil confirming to IS-335 (as in toping up or replacement) of 70 KV breaking capacity complete all as specified and as directed. Note :- The work will be carried at different locations in cantt area. Neceaary transport arrangement for shifting machine from one place to another to be arranged by contractor and cost of same to be included in unit rate.Contractor will bring new transformer oil in sealed container and cost of same shall be included in unit rate. complete all as specified and as directed. |
| 61 | Supply and fix as in repair/ Replacment Danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size for HT,(25 x20 cm) size all as specified and directed. |
| 62 | Supply and fix as in repair/repalcment of Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size size 50 sqmm to 95 sqmm all as specifed and as directed. |
| 63 | Supply and fix as in repair/repalcment of Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and as directed. |
| 64 | Supply and fix as in repair/replacment of Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and as directed. |
| 65 | Supply and fix as in repair/repalcment of Cable jointing kit for 33 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm to 120 sqmm complete all as specified and as directed. |
| 66 | Supply and laying as in replacment of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 33000 volts Earthed, grade cross sectional area 95 sq. mm complete all as specified and as directed. |
| 67 | Material and labour for painting of transformer complete including Transformer Tanks. Conservators and other fittings. Radiators, Marshalling Box etc with preperation of new or old painted steel surface exceeding 10cm width or girth, including cleaning, washing and applying two coat of Epoxy enamel paint anticorossive cat No RAL 5012 over a coat of epoxy based Zinc primer on outer sufaces of Transformer of capacity 63 to 100 KVA complete all as specified and as directed. |
| 68 | Material and labour for painting of transformer complete including Transformer Tanks. Conservators and other fittings. Radiators, Marshalling Box etc with preperation of new or old painted steel surface exceeding 10cm width or girth, including cleaning, washing and applying two coat of Epoxy enamel paint anticorossive cat No RAL 5012 over a coat of epoxy based Zinc primer on outer sufaces of Transformer of capacity 160 to 250 KVA complete all as specified and as directed. |
| 69 | Material and labour for painting of transformer complete including Transformer Tanks. Conservators and other fittings. Radiators, Marshalling Box etc with preperation of new or old painted steel surface exceeding 10cm width or girth, including cleaning, washing and applying two coat of Epoxy enamel paint anticorossive cat No RAL 5012 over a coat of epoxy based Zinc primer on outer sufaces of Transformer of capacity 315 to 500 KVA complete all as specified and as directed. |
| 70 | Material and labour for painting of transformer complete including Transformer Tanks. Conservators and other fittings. Radiators, Marshalling Box etc with preperation of new or old painted steel surface exceeding 10cm width or girth, including cleaning, washing and applying two coat of Epoxy enamel paint anticorossive cat No RAL 5012 over a coat of epoxy based Zinc primer on outer suface of Power Transformer of capacity 2500 KVA complete all as specified and as directed. |
| 71 | Material and labour for painting of transformer complete including Transformer Tanks. Conservators and other fittings. Radiators, Marshalling Box etc with preperation of new or old painted steel surface exceeding 10cm width or girth, including cleaning, washing and applying two coat of Epoxy enamel paint anticorossive cat No RAL 5012 over a coat of epoxy based Zinc primer on outer suface of Power Transformer of capacity 500 KVA complete all as specified and as directed. |
| 72 | Supply and fixing PVC sheathed Armoured copper control cable of 4 pair 2.5 Sqmm in different colours complete all as specified and as directed. |
| 73 | Supply and fixing PVC sheathed Armoured copper control cable of 6 pair 2.5 Sqmm in different colours complete all as specified and as directed. |
| 74 | Supply and fixing PVC sheathed Armoured copper control cable of 8 pair 2.5 Sqmm in different colours complete all as specified and as directed. |
| 75 | M & L in repairs for Disconnecting Outdoor/indoor transofrmer capacity 200 KVA from HT/LT terminals and lowering down/getting out from 2/4/6 pole structure/ plinth or inside sub station for major repairing/minor repar, Draining out complete transformer oil from transformer, Opening of top cover by unscrewing nut, bots & washers etc and taking out core assembly from tank by disconnecting from tap changer HT & LT side bushing stud to outside by dismantling the channel and disconnecting star delta connctin of transformer, rewinding of HT/LT coils with copper wire DPC/super enameled high quility matching with existing gauge and impedence includig requisite insulating paper/material in each layer of winding after taking down old existing winding of HT leg coils, Top of New Transformer Oil after rewinding complete all as specified and as directed.Note : Transportation of unserviceable transformer of capacity 200 KVA (with vehicle) to workshop and return back for installation it on original position/ location after repairing from workshop & Intallation of Transformer at original position by making neccessary connection and testing at site deemed to be incuded in quoated rate |
| 76 | Supply and fix FRP duct cover for cable duct of min size of 1.5 ft x 1.5 ft (square shape) having load capacity 4 ton, complete all as specified and as directed. |
| 77 | Taking down/dismantling existing old unserviceable poles complete all as specified and as directed. |
| 78 | Taking down/dismantling existing old ACSR Conductor for repair/replacement complete all as specified and as directed. |
| 79 | Taking down/dismantling existing old cross arms for repair/replacement complete all as specified and as directed. |
| 80 | Taking down/dismantling stay assembly for repair/replacement complete all as specified and as directed. Please Enable Macros to View BoQ information |
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