Tender For Repairs / Maintenance Of Ht 33 Kv Sf6 Breakers, 11 Kv Vcbs And Rmus, 33/11 Kv Power Transformers, 11 Kv/33 Volts Distribution Transformers, Ht Cable, Joint Kits Alongwith Connected Allied Works At Nstl Under Age (I) R&D Nstl Visakhapatnam
Tender Value
38 Lakhs
Estimated cost
Bid Submission
08 Oct 2026
15 days left
EMD
76000
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Visakhapatanam → Andhra Pradesh
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Repairs / Maintenance Of Ht 33 Kv Sf6 Breakers, 11 Kv Vcbs And Rmus, 33/11 Kv Power Transformers, 11 Kv/33 Volts Distribution Transformers, Ht Cable, Joint Kits Alongwith Connected Allied Works At Nstl Under Age (I) R&D Nstl Visakhapatnam
BOQ
| Sl. No. | Item Description |
| 1 | =B2& \\" BoQ\\" BoQ_Ver3.0 Item Rate Normal INR Only INR Select, Excess (+), Less (-) Less (-) Tender Inviting Authority: CHIEF ENGINEER (R&D) SECUNDERABAD Name of Work: REPAIRS / MAINTENANCE OF HT 33 KV SF6 BREAKERS, 11 KV VCBs AND RMUs, 33/11 KV POWER TRANSFORMERS, 11 KV/33 VOLTS DISTRIBUTION TRANSFORMERS, HT CABLE, JOINT KITS ALONGWITH CONNECTED ALLIED WORKS AT NSTL UNDER AGE (I) R&D NSTL VISAKHAPATNAM Contract No: CERD/VIZ/TOKEN/24 OF 2026-2027 Bidder Name : PRICE SCHEDULE(This BoQ template must not be modified / replaced by the bidder and the same should be uploaded after filling the relevant columns, else the bidder is liable to be rejected for this tender. Bidders are allowed to enter the Bidder Name and Values only) NUMBER # TEXT # TEXT # NUMBER # TEXT # NUMBER NUMBER TEXT TEXT # NUMBER # TEXT# TEXT # NUMBER # NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER NUMBER TEXT TEXT NUMBER NUMBER NUMBER # NUMBER # TEXT TEXT NUMBER # NUMBER # DATE NUMBER # NUMBER # TEXT # SlNo. Item Description Item Code / Make Quantity Units Estimated Rate Addition / Deduction Addition / Deduction Values Currency Convertion against each Item Quoted Currency in INR / Other Currency Rate in Figures to be entered by the Bidder Rs. Ps. Excise Duty VAT Freight Charges ( Unloading & Stacking) Any Other Taxes/Duties/Levies Other Taxes 2 IIIrd Party i.e. DGS&D / RITES etc Inspection Charges @0.34%+Service Tax Less for Cenvat Credit, if any respect of Supplies Under full Excise Duty Category TOTAL AMOUNT Without Taxes Total Amount Total Amount in Words |
| 2 | M&L for dis-connecting the HT 11 KV VCB panel indoor / outdoor rupturing capacity of 250 MVA/350 MVA, 400 to 1600 Amps, for servicing, cleaning, tightening of loose mechanical mechanism, greasing by taking out the trolley of the breaker, inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of IDMT relays, master trip relays, testing of tripping system, to maintain desired insulation level of each panel and removing all types of dust and settled dirt by mechanical means including testing complete all as specified and as directed by Engineer-in-Charge including the followings: |
| 3 | (a) Cleaning of Vacuum Circuit Breaker with CRC-226.(b) To check the condition of SIC contacts.(c) Checking condition and alignment of jaw contact.(d) Checking and proper tightening of hardware.(e) Checking of proper closing / opening of all poles.(f) Checking of breaker tripping through push button.(g) Checking and adjusting gap between hylem sheet and side plate.(h) Checking motor operation in case of EDO.(j) Checking auxiliary contacts continuity and proper change over. |
| 4 | (k) Checking of presence if circlips.(l) Checking IR between phase to phase (VCB closed condition).(m) Checking IR between phase to earth (VCB closed condition).(n) Checking IR between phase to earth (VCB open condition).(o) Cleaning and providing lubricants on movable mechanical parts.(p) Testing of relays through secondary injections.(q) Tripping of VCB through Buchholz relay / OTI / WTI if required.(r) Testing of CTs & PTs.(s) Testing of contact resistance of VCBs. |
| 5 | M&L for dis-connecting the HT 33 KV SF6 panel indoor / outdoor rupturing capacity of 630 Amps, 31.5 KA, 36 KV, for servicing, cleaning, tightening of loose mechanical mechanism, greasing by taking out the trolley of the breaker, inspection of busbar, CTs/PTs, internal wiring of control panel, indicators, measuring of IR value, calibration of IDMT relays, master trip relays, testing of tripping system, to maintain desired insulation level of each panel and removing all type of dust and settled dirt by mechanical means including testing complete all as specified and as directed by Engineer-in-Charge including the followings: |
| 6 | (a) Cleaning of SF6 Breaker with CRC-226.(b) To check the condition of SIC contacts.(c) Checking condition and alignment of jaw contact.(d) Checking and proper tightening of hardware.(e) Checking of proper closing / open of all poles.(f) Checking of breaker tripping through push button.(g) Checking and adjusting gap between hylem sheet and side plate.(h) Checking motor operation in case of EDO.(j) Checking auxiliary contacts continuity proper change over. |
| 7 | (k) Checking of presence if circlips.(l) Checking IR between phase to phase (SF6 breaker closed condition).(m) Checking IR between phase to earth (SF6 breaker closed condition).(n) Checking IR between phase to earth (SF6 breaker open condition).(o) Cleaning and providing lubricants on movable mechanical parts.(p) Testing of relays through secondary injections.(q) Tripping of SF6 Breaker through Buchholz relay / OTI / WTI if required.(r) Testing of CTs & PT.(s) Testing of contact resistance of SF6 breakers. |
| 8 | Notes for Sl item Nos. 1 & 2:(i) Servicing, relay calibration & tripping shall be carried out only by the OEM authorised technician for VCB & SF6 Breaker respectively(ii) Spare parts as required for replacement of existing worn out parts shall be measured and paid separately under appropriate items.(iii)Labour for replacement / fixing of the supply only items shall be deemed to be included in the unit rate quoted against this item. |
| 9 | S&F in repair, spout bushing for indoor 11 KV 400 to 1600 Amps complete assembly for lower side & upper side VCB complete all as specified and directed. |
| 10 | S&F in repair, spout bushing for indoor 33 KV 400 to 630 Amps complete assembly for lower side & upper side SF6 breaker complete all as specified and directed. |
| 11 | S&F in repair, 400 to 800 Amps, contact plugs for 11 KV VCBs complete all as specified and directed. |
| 12 | S&F in repair, 400 to 800 Amps, contact plugs for 33 KV SF6 breakers complete all as specified and directed. |
| 13 | S&F in repair, buffer suitable for opening spring / closing spring for 11 KV VCBs all as specified and directed. |
| 14 | S&F in repair, buffer suitable for opening spring / closing spring for 33 KV SF6 breakers complete all as specified and directed. |
| 15 | S&F in repair, rectifier unit (monoblock) for spring charging motor for 400A to 1600A for 11 KV VCB breakers complete all as specified and directed. |
| 16 | S&F in repair, rectifier unit (monoblock) for spring charging motor for 400A to 1600A for 33 KV SF6 breakers complete all as specified and directed. |
| 17 | S&F in repair, 400 to 800 Amps finger contact assembly for 33 KV SF6 breakers complete all as specified and directed as per ground sample. |
| 18 | S&F in repair, 400 to 1600 Amps finger contact assembly for 11 KV VCB complete all as specified and directed. |
| 19 | S&F in repair, vacuum interrupter bottle suitable for 11 KV indoor / outdoor existing VCB complete all as specified and directed. |
| 20 | S&F in repair, thermostat for space heater, 230V AC supply inside 11 KV HT VCB breaker cable chamber complete all as specified and directed. |
| 21 | S&F in repair, spring charging assembly 110/230 V AC/DC for 11 KV indoor / outdoor VCB complete all as specified and directed. |
| 22 | S&F in repair, closing spring assembly complete for 11 KV VCB all as specified and directed. |
| 23 | S&F in repair, closing spring assembly complete for 33 KV SF6 breaker all as specified and directed. |
| 24 | S&F in repair, motor cut-off limit switch complete for 11 KV VCB all as specified and directed. |
| 25 | S&F in repair, motor cut-off limit switch complete for 33 KV SF6 breaker all as specified and directed. |
| 26 | S&F in repair, 2 Pole, 2A-6A, DC MCB for control circuit complete all as specified and directed. |
| 27 | S&F in repair, Single pole, 2A-6A, DC MCB for control circuit complete all as specified and directed. |
| 28 | S&F in repair, Ratchet handle for 11 KV VCB complete all as specified and directed. |
| 29 | S&F in repair, Ratchet handle for 33 KV SF6 breaker complete all as specified and directed. |
| 30 | S&F in repair, suitable auxilary switch for 11 KV VCB with contact configuration range 4NO + 4NC to 8NO + 8NC as per ground sample complete all as specified and directed. |
| 31 | S&F in repair, service / test position limit switch 1NO + 1NC for 800A to 1600A 11 KV VCB complete all as specified and directed. |
| 32 | S&F in repair, local remote selector switch complete all as specified and directed. |
| 33 | S&F in repair, trip neutral close spring return rotary type breaker control switch upto 40A, 110/220V DC or 415V AC as per ground sample for 11 KV VCB remote ON & OFF operations complete all as specified and directed. |
| 34 | S&F in repair, trip neutral close spring return rotary type breaker control switch upto 40A, 110/220V DC or 415V AC as per ground sample for 33 KV SF6 breaker remote ON & OFF operations complete all as specified and directed. |
| 35 | M&L for power pack with battery backup 230 V AC input and 110 Volt DC output suitable for HT 11 KV VCB complete all as specified and directed. |
| 36 | S&F in repair, closing coil / tripping coil assembly 110 V DC to 11KV VCB including necessary connection testing complete including dismantling taking down unserviceable one complete all as specified and directed. |
| 37 | S&F in repair, closing coil / tripping coil assembly 110 V DC to 33 KV SF6 breaker including necessary connection testing complete including dismantling taking down unserviceable one complete all as specified and directed. |
| 38 | S&F, digital type Ampere meter range 0-400 Amps, with built in selector switch including square type as required at site flush mounted of size 96mm x 96mm suitable for HT VCB including making connection with copper conductor cable of suitable size complete all as specified and directed. |
| 39 | S&F, digital type volt meter range 0-15 KV, with built in selector switch including square type as required at site flush mounted of size 96mm x 96mm suitable for HT VCB including making connection with copper conductor cable of suitable size complete all as specified and directed. |
| 40 | S&F, digital type multifunctional meter MFM 4405 LED meter Cl 1 with RS485 with 4 line digital display for all basic, energy and power quality parameters like Voltage, Amps, Frequency, PF, KW, KVA, KVAR, KWH, KVAH and KVARH, with built in selector switch including square type as required at site flush mounted of size 96mm x 96mm suitable for HT VCB including making connection with copper conductor cable of suitable size complete all as specified and directed. |
| 41 | S&F in repair, electronic hooter 230/110/24 Volts AC/DC for VCB square type as required at site flush mounted of size 96mm x 96mm suitable for HT 11 KV VCB including making connections with copper conductor cable of suitable size complete all as specified and directed. |
| 42 | S&F, replacement indicator lamp in different colour code LED/Neon type complete suitable for HT VCB 630/400 Amps including making connections with copper conductor cable of suitable size complete all as specified and directed. |
| 43 | Supplying, installing, testing, calibrating & commissioning of the IDMT relays with instant tripping system, working voltage 110 V, Earth Fault 10% to 40% and over current settings 50% to 200% of CT secondary current in advance including taking out the existing unserviceable IDMT relay (CG114N/CG114S) complete all as specified and directed. |
| 44 | Supply, install, testing & commissioning of ABB make RET 620/615, transformer protection and control relay protections 87T, 64R (High and Low Impedance), 50, 51, 50N, 51N, 67, 67N, 46, 49, 37, 24, 27, 59, 59N, 81U, 81O, df/dt, 95, measurement for 3I, 10, 3U, U0, KW, KVA, kwh, PF Hz, S DI/8 DI + 13 DO, 2 RTD inputs, 1 mA input, one front RJ45 port, one rear RS485 port for Modbus Protocol, draw out with CT shorting feature including suitable type of wiring of any core PVC copper cable FRLS from relay to transformer to make it operational and also taking down old relay of any description deposit in MES storeyard complete all as specified and directed. |
| 45 | Supplying, installing, testing & commissioning of the master trip relay working voltage 110 V DC including taking out the existing unserviceable master trip relay complete all as specified and directed. |
| 46 | S&F in replacement current transformer suitable for 33 KV SF6 breaker epoxy cast wound window type mode No. WCT3302 CT of ratio 150-200/1-1 A class-I including necessary connection, including testing and commissioning complete all as specified and directed. |
| 47 | S&F in replacement current transformer 11 KV epoxy cast wound, CT of ratio 150/1 A class-I including necessary connection, including testing and commissioning complete all as specified and directed. |
| 48 | S&F in replacement current transformer 11 KV epoxy cast wound, CT of ratio 75/1 A class-I including necessary connection, including testing and commissioning complete all as specified and directed. |
| 49 | S&F in replacement current transformer 11 KV epoxy cast wound, CT of ratio 250/125/5/1 A class-I including necessary connection, including testing and commissioning complete all as specified and directed. |
| 50 | M&L for control wiring HT VCB/ SF6 Breaker FRLSH PVC insulated copper cable 5 core 1.5 Sqmm complete all as specified and directed. |
| 51 | S&F, space heater 230V, 100 watt inside cable chamber for 11 KV VCB including necessary connection, testing complete all as specified and directed. |
| 52 | S&F, space heater 230V, 100 watt inside cable chamber for 33 KV SF6 Breaker including necessary connection, testing complete all as specified and directed. |
| 53 | M&L for inspection, calibration, testing, servicing & overhauling of factory made 11 KV, 630 Amps, 21 kA for 3 seconds, SF6 insulated, motorized, outdoor RMU of 3/4/5 ways. Testing should be carried out through OEM / authorised State Govt CEIG Licenced agency and comprising of the following: -(a) Preliminary inspection of 11 KV MV switch gear for any defects. (b) Servicing on GIS switch gear panels:-(i) Cleaning panel(ii) Checking the condition of SF6 gas(iii) IR test(iv) HV test(c) Servicing on VCBs:-(i) IR test(ii) Timing test(iii) CRM test(iv) HV test |
| 54 | (d) Over hauling of breakers for proper functioning.(e) Replacement of minor spares.Note: (i) The GIS switchgear servicing includes (a) Cleaning of GIS for dust, oxidizing and decarbonising with modern non polluting CTC.(b) Repair/servicing of spring loaded operating mechanism.(c) Repair/servicing of spring charging motor.(d) Checking, repairing & servicing of gearbox, auxiliary switches, spring, limit switch etc complete.(e) Checking & repairing electrical and mechanical operations. |
| 55 | (f) Lubrication of all moving parts with petroleum jelly & cleaning all bushing insulators with modern non polluting CTC.(g) Tightening of all mechanical connections of mechanism.(h) Proper tightening of all LV connection of VCB and cable chamber & allied connecting accessories.(ii) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of RMU panels with approved colour including lettering details all as per existing.(iii) Major spares will be measured and paid separately under relevant items of Schedule 'A'. However, the rate quoted shall be deemed to include for any other minor spares require replacement. |
| 56 | (iv) Servicing shall be carried out through authorised personnel only and test report shall be submitted in duplicate.(v) Required new components will be measured and paid separately under relevant items. |
| 57 | S&F, CR-2/3 AZ industrial lithium battery 3 Volts (CR17335) suitable for 11 KV RMU complete all as specified and directed. |
| 58 | S&F, battery charger suitable for RMU of capacity 24 Volts (DC) with 10 Amps output & 230 Volts AC input complete all as specified and directed. |
| 59 | S&F, power card (SMPS card) complete with all electrical circuit suitable for RMU complete all as specified and directed. |
| 60 | S&F, Panasonic CR1632 battery 3 Volts suitable for 11 KV RMU complete all as specified and directed. |
| 61 | S&F, TAFU (E-TAFU-02) card suitable for SIEMENS 11 KV RMU complete all as specified and directed. |
| 62 | S&F, maintenance free sealed lead acid battery 12 Volts 26 Ah suitable for siemens 11 KV RMU complete all as specified and directed. |
| 63 | Supply & filling of SF6 gas suitable for 11 KV Siemens RMU & 33 KV ABB SF6 breaker complete all as specified and directed. |
| 64 | Supply, laying & testing, HT cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) with stranded aluminium conductor 11000 volts grade of size 95 sqmm x 3 core complete all as specified and directed. |
| 65 | Supply, laying & testing, HT cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) with stranded aluminium conductor 11000 volts grade of size 185 sqmm x 3 core complete all as specified and directed. |
| 66 | Supply, laying & testing, HT cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) with stranded aluminium conductor 11000 volts grade of size 240 sqmm x 3 core complete all as specified and directed. |
| 67 | Supply, laying & testing, HT cable XLPE insulated screened PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) with stranded aluminium conductor 33KV grade of size 300 sqmm x 3 core complete all as specified and directed. |
| 68 | S&F, cable jointing STRAIGHT THROUGH JOINT for 11000V grade cable complete with jointing material (heat shrinkable) and accessories suitable for 3 core XLPE armoured, aluminum conductor cable of size 95 to 400 sqmm complete all as specified and directed. |
| 69 | S&F, cable jointing for 11000V grade cable for outdoor / indoor termination joint complete with jointing material (heat shrinkable) and accessories suitable for 3 core XLPE armoured, aluminum conductor cable of size 95 to 400 sqmm complete all as specified and directed. |
| 70 | S&F, cable jointing straight through joint for 33000V grade cable complete with jointing material (heat shrinkable) and accessories suitable for 3 core XLPE armoured, aluminum conductor cable of size 95 to 300 sqmm complete all as specified and directed. |
| 71 | S&F, cable jointing for 33000V grade cable for outdoor / indoor termination joint complete with jointing material (heat shrinkable) and accessories suitable for 3 core XLPE armoured, aluminum conductor cable of size 95 to 240 sqmm complete all as specified and directed. |
| 72 | M&L for pin point fault finding on HT 33 KV/11 KV cables of any size and any length with fault detective machine by thumbing method and suitable high voltage to find out exact location of fault & cable jointing with suitable size complete all as specified and directed.Note: Cable joint cost will be measured separately under relevant item. |
| 73 | M&L for Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr in depth including taking down old cable in any soil complete all as specified and directed. |
| 74 | M&L for Returning, filling in soft / loose soil including spreading, leveling, watering and well ramming, in layers not exceeding 25cm complete all as specified and directed. |
| 75 | Removing of surplus soil to a distance not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point complete all as specified and directed. |
| 76 | Supply and laying, un-reinforced precast concrete cable cover class HV type I, size 300 x 180 x 40mm complete all as specified and directed. |
| 77 | M&L for river dry sand cushioning to under ground cable in trenches including spreading, levelling and hand punning complete all as specified and directed. |
| 78 | Cutting trench of width 30cm and depth not exceeding 60cm through road / hard standing for laying cable through GI pipe and returning, filling in including spreading leveling watering and well ramming in layers not exceeding 25cm after laying the cable complete including provision of PCC type B1 filling for top 100mm layer complete all as specified and directed. |
| 79 | GI tubing light grade 150mm dia for cable protection, laid under plinths / floors / roads / culverts or fixed on walls or concealed in walls or along the steel poles by means of M.S.F.I clamps with necessary bolts, nuts, washers etc; complete all as specified and directed. |
| 80 | M&L for servicing / overhauling of HT 33 KV/11KV 2 pole/4 pole structure air break gang operated switches vertical / horizontal mounted including insulators and operating mechanism for repair / replacement of broken / worn out components such as insulators, nut / bolts GI pipe complete with oiling, greasing of operating mechanism and also painting etc; complete all as specified and directed. |
| 81 | M&L for earthing complete with galvanised steel earth plate electrode 600 x 600 x 6mm thick buried directly in ground earth pit not less than 2.25 metre deep below ground level with top edge of the plate not less than 1.5 metre below normal ground level connected to galvanised iron earth strip 32 x 6mm as earthing lead by means of bolts, nuts, check nuts & washers of GI steel and connecting to earth dolly all as shown in electrical plate No. 5 connected to earth test point all as specified and indicated including PCC pit and CI over fullet with watering pippe, wire mess and copper etc GI protection pipe of suitablesize including testing on completion complete all as specified and directed.Note: Earth continuity conductor and GI protection pipe beyond 7.5m shall be measured and paid under the respective items. |
| 82 | M&L for earthing continuity galvanised iron strip 32 x 6mm or main earthing lead fixed to wall with clamps or recess or cross or buried in ground or drawn in conduits / pipe or fixed to poles or any other indicated situation for loop earthing etc as required complete all as specified and directed. |
| 83 | M&L for filtration of transformer oil of step down 33 KV /11 KV indoor / outdoor type transformers installed at different sub stations & locations of NSTL area & Kalinga area, testing of dielectric strength of transformer oil of indoor / outdoor type transformer, 33 KV/11 KV filtration of transformer oil by passing through filtration plant to remove moisture, impurities and improving di-electric strength to above 60 KV for 1 minute at 2.5mm gap including new transformer oil for topping up & testing after filtration complete all as specified and directed. |
| 84 | M&L for filtration of transformer oil of step down 11 KV / 0.433 KV indoor / outdoor type transformers installed at different substations & locations of NSTL area & DRDL Kalinga area, testing of dielectric strength of transformer oil of indoor / outdoor type transformer, 11KV/433 volt, filtration of transformer oil by passing through filtration plant to remove moisture, impurities and improving di-electric strength to above 60 KV for 1 minute at 2.5mm gap including new transformer oil for topping up & testing after filtration complete all as specified and directed. |
| 85 | Note for Sl item Nos. 74 & 75:(a) Extra transformer oil will be measured and paid seperately.(b) The contractor will take shut down orders for working before commencement of the work from Engineer-in-Charge.(c) The contractor shall ensure no wastage of transformer oil.(d) The contractor is solely responsible for any damage to the transformer during filtration operations. He is responsible for making good any damage to the transformer at his own cost without any extra cost to the department. |
| 86 | (e) The contractor shall ensure that the conservator tanks are full to its level before starting the dehydration.(f) The di-electric strength of oil shall be tested before & after filtration. Test results shall be submitted to Engineer-in-Charge. |
| 87 | S&F in repair silica gel breather assembly with first fill of silica gel suitable for 100 KVA to 5000 KVA transformers complete including connecting with proper rubberized gasket including necessary GI fitting complete all as specified and directed. |
| 88 | Supply and filling, Silica gel in breathers of transformers complete all as specified and directed.Note: The Silica Gel shall be brought in Air-tight container. |
| 89 | S&F, wind / oil temperature gauge meter suitable for outdoor / indoor type 11/0.433 KV transformers of capacity up to 1600 KVA including taking down unserviceable one from transformer complete all as specified and directed. |
| 90 | Supply and replacement of burnt transformer oil with new transformer oil in sealed drum with di-electric strength of 60 KV for topping up transformer & extra oil required for repaired transformers complete all as specified and as directed.Note: (a) Transformer oil shall be type EHV conforming to IS - 335 (2018).(b) Mineral oil grade shall be used.(c) Transformer oil should have a high dielectric strength not less than 60 KV/Min. |
| 91 | M&L for disconnecting the existing HT/ LT electrical connections of defective transformer terminals and shifting transformer of any capacity from existing position to workshop for repairs and reinstalling the same after repairs in position including necessary testing after reinstalling transformer complete all as specified and directed.Notes:(i) Repair / replacement of transformer parts shall be measured and paid separately under respective items of BoQ.(ii) The unit rate quoted shall be deemed to include for the cost of shifting of transformer to workshop and back to position. |
| 92 | M&L for opening transformer cover along with the conservator by removing the nuts, bolts then after removing the internal HT & LT connections by taking them out by removing studs, bushings, taking out the core winding assembly out of the tank, removing out burnt HV & LV windings from the core assembly, cleaning of core assembly with modern non polluting CTC including necessary repairs for the unserviceable transformers , draining & decanting of burnt transformer oil and cleaning of sludge deposited in the tank for transformers, rewinding of HV & LV coils with suitable turns & size of super enamelled copper wire / strip winding material measured separately (as existing) having suitable class insulation material, heating of core winding assembly as per existing procedure& removing the moisture present in it |
| 93 | Removal of leakage of tank if any by welding, refilling transformer oil to tank, after putting the core winding assembly into tank, reassembling making the internal HT & LT connections by fixing the studs, bushings, fitting the top cover by replacing the cork sheet gasket along with conservator, testing transformer in the workshop duly filled with oil complete all as specified and directed. Notes: (i) The unit rate quoted shall be inclusive of varnish sleeving of insulating material, taking down the clamps, upper channels and core & HT links and re-clamping, positioning with separators, brazing etc complete.(ii) Weight of copper coil, HT & LT insulation shall be considered for payment. |
| 94 | (iii) Replacement of unserviceable items such as HT & LT bushings, studs, nut, bolts & washers shall be paid separately.(iv) Extra transformer oil will be measured and paid separately.(v) Synthetic rubber cork sheet gasket will be measured and paid seperately. |
| 95 | Supply & replacement of super enamealled copper winding wire / strip of suitable gauge as per existing for H.T & L.T coils of transformer of capacity up to 1600 KVA of 11/0.433 KV including providing HT & LT insulation complete all as specified and directed. |
| 96 | M&L for transformer oil leakage arresting by providing synthetic rubberized cork sheet gasket 6mm thick for top cover HT/LT bushes at places existing and tightening all the bushings and top cover including taking down unserviceable sheet gasket (cork sheet), transformer capacity of 11/0.433 KV 100 KVA to 1600 KVA complete all as specified and directed. |
| 97 | M&L for low voltage testing of 11KV/433V 100 to 1600 KVA distribution transformer i.e. voltage ratio, magnetizing current, magnetic balance, polarisation index, DAR & IR value test complete all as specified and directed. |
| 98 | M&L for low voltage testing of 33KV/11KV 3150 to 5000 KVA distribution transformer i.e. voltage ratio, magnetizing current, magnetic balance, polarisation index, DAR & IR value test complete all as specified and directed. |
| 99 | M&L for shifting of transformer of 100 to 1600 KVA capacity from various substations / locations at NSTL area by road using and removing the faulty transformer by fixing / erecting of healthy transformer with hydraulic crane support making the necessary HT/LT cable connections earth connections and restoration of power supply complete all as specified and directed. |
| 100 | Supply and replace, 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 33KV/11KV, 25 x 20cm size including taking down of old plate complete all as specified and directed. |
| 101 | M&L for writing name on wall / board as per existing at new MRS & various substations at NSTL technical area with suitable paint as colours approved by Engineer-in-Charge complete all as specified and directed. |
| 102 | M&L for painting of 33 KV/11 KV substation yard at Main receiving substation at NSTL technical area including lattice structure 12 Mtrs height - 16 Nos, cross beams of 6 Mtrs length - 24 Nos & connected accessories by scrubbing by emary paper by removing stains / rusted scales etc and applying two coats of synthetic enamel paint as colour approved by Engineer-in-Charge over a one coat of zinc oxide primer complete and writing feeder names with black colour complete all as specified and directed.Note: Before quoting the rate contractor shall visit the site. |
| 103 | M&L for dry sand cushioning and cover for protection of cable, complete all as specified and as directed.Note: Approved local tibba dry sand after removal of vegetations, grass and other deleterious substances shall be used for sand cushioning and cover. |
| 104 | M&L for taking down 11 KV grade unserviceable pin/post insulators from the HT 2 pole/4 pole structure and S&F pin type polymer insulator / silicon rubber material including one galvanizing MS spindle, nuts & washers of 150mm height, 150 mm dia for 11000 volt grade and fixing to the structure and binding of conductor complete all as specified and directed. |
| 105 | M&L for taking down the damaged / unserviceable lightning arresters expulsion type suitable for 11000 volts complete with all fittings, transmission class, discharge capacity 6.5 Kilo Amps complete all as specified and directed. |
| 106 | M&L for isolating, cutting, removing the existing damaged end termination and S&F outdoor end termination heat shrink outdoor type (earthed) suitable for HT UG cable XLPE insulated 3 core 120 to 185 Sqmm 11KV grade including preparation complete all as specified and directed. |
| 107 | M&L for isolating, cutting, removing the existing damaged end termination and S&F outdoor end termination heat shrink outdoor type (earthed) suitable for HT UG cable XLPE insulated 3 core 240 to 300 Sqmm 11KV grade including preparation complete all as specified and directed. |
| 108 | M&L for cutting, removing the existing damaged joint and S&F straight through joint heat shrinkable type suitable for HT UG cable XLPE insulated 3 core 120 to 185 sqmm 11000V grade including preparation complete all as specified and directed. |
| 109 | M&L for cutting, removing the existing damaged joint and S&F straight through joint heat shrinkable type suitable for HT UG cable XLPE insulated 3 core 240 to 400 sqmm 11000V grade including preparation complete all as specified and directed. |
| 110 | M&L for earthing complete with using copper plate electrode 60 x 60 x 3.15 mm thick electrode copper strip as earthing lead buried vertically in ground (earth pit not less than 2.25 meter deep below normal ground level), with top edge of earth plate not less than 1.5m below ground level connected to and galvanised Copper 20 x 3mm by means of bolts / nuts / check nuts and washers of galvanized iron or as shown in electrical plate No 5 connected to earthing test point including watering arrangement with PCC 1:3:6 type C1 chamber , MS Funnel , Wire gauge , 50mm thick precast RCC Coverin Type B1 |
| 111 | including necessary excavation and earth work in any type of soil / strata, returning filling in, removal of surplus soil to a distance n exc 50m, char coal and salt complete as shown in electrical plate No. 3 of SSR Part-1 2009 and connecting to earth test point including testing after completion of earth complete all as specified and directed.Note: Contractor should submit test results of earthings. |
| 112 | M&L for earthing continuity copper strip 20 x 3.15mm dia or main earthing lead fixed to wall with clamps or recess or croses or buried in ground or drawn in conduits / pipe or fixed to poles or any other indicated situation for loop earthing complete all as specified and directed. |
| 113 | GI tubing light grade 100mm dia for cable protection, laid under plinths / floors / roads / culverts or fixed on walls or concealed in walls or along the steel poles by means of M.S.F.I clamps with necessary bolts, nuts, washers etc; including taking down old unserviceable pipe complete all as specified and directed. |
| 114 | Supply and repair of HT feeder pillar confirming to relevant IS, outdoor type cubical, factory made, dust and vermin proof, IP-54 fabricated out of CRCA sheet not less than 3mm thick fixed on angle iron frame of size 50 x 50 x 6mm conforming to Fe 410-0, front openable double stud hinged with locking arrangements, lock openable by keys, bottom cable entry with gland plates to accommodate HT XLPE cables, having chromium plated 19mm dia fancy lock, 11000 volts danger board, louvers and air vent, phase barriers and |
| 115 | 12mm thick bakelite or equivalent insulating sheet for cable separation gasket U type for natural flow of air, complete dust and vermin proof and panel fixed with PCC 1:2:4, type B1 (using 20mm graded stone aggregate) platform 60cm above the ground level and 45cm below the ground level, high-conductivity electrolytic grade aluminium or copper bus bar of 600 Amps painted with support insulator and powder coated paint having not less than 100 microns over a coat of zinc chrome primer with seven tank process and general construction confirming to IS complete all as specified and directed by Engineer-in-Charge. |
| 116 | M&L for pin pointing fault of faulty 11 KV HT cables by using HT cable fault locator machine, removing the fault and testing HT cable at 11 KV complete all as specified and directed. Total in Figures 0.0 0.0 INR Zero Only 4.0 Construction of chamber for 100mm sluice plates item5 10.0 Nos Quoted Rate in Figures Select 0.0 0.0 Zero Only Quoted Rate in Words INR Zero Only Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 17, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 08, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 15 daysOct 12, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 19 daysTender Documents
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