Tender For Repair/ Maintenance Of Ht Electrical Services, Connected Equip/ Plants (Transformers) With Ht Cables And Oh Lines Of Various Location Of Guwahati Under Ge Guwahati
Tender Value
25 Lakhs
Estimated cost
Bid Submission
27 Jul 2026
19 days left
EMD
50000
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Kamrup Metro → Assam
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Repair/ Maintenance Of Ht Electrical Services, Connected Equip/ Plants (Transformers) With Ht Cables And Oh Lines Of Various Location Of Guwahati Under Ge Guwahati
BOQ
| Sl. No. | Item Description |
| 1 | Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed. |
| 2 | Excavating in trenches not exceeding 1.5 m wide and exceeding 1.5 m but not exceeding 3.0 in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or not exceeding 10 sqm on plan and exceeding 1.5 m but not exceeding 3 m in depth and getting out in soft/ loose soil complete all as specified and as directed. |
| 3 | Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed. |
| 4 | Removing excavated material not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and directed. |
| 5 | Supply & laying Sand coarse dry as in cushioning of underground electric cable in trenches, laid to a uniform thickness of 23cm (15cm under the cable & 8cm over the cable) and gently punned down to 18cm thickness complete all as specified and as directed. Note :- Only punned down sand shall be measured. |
| 6 | Supply & laying unreinforced precast concrete cable cover class HVP type 1, with peak shape, dimension 300 mm X 180 mm X 40 mm and 65 mm peak thickness as per IS 5820: 1970 and MES marking on top of cover complete all as specified and directed. |
| 7 | Supply, laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages 11 kV, three phase, earthed system, 3 core, screened, armoured power cable, 95 sqmm of nominal area of conductor, aluminium conductor, ISI marked as per IS 7098 (Part-II): 2011 laid in trenches or under floors making all connections with necessary glands lugs bushing including taking down complete all as specified and as directed. |
| 8 | \\"Taking out / down faulty unserviceable 11KV, HT UG cable from existing trenches/duct/on HT poles of any size including disconnecting, PCC covers, GI Pipe etc. of any descriptions, including segregation of serviceable materials viz PCC cable cover, GI Pipes etc. and tracing the location of fault and keep in safe custody for re-use complete all as specified and as directed NOTE : (i) Earth work shall be measured and paid for separately under relevent items(ii) Serviceable cable covers will be kept aside for re-use.\\" |
| 9 | Laying only unreinforced precast concrete cable cover class HV type 2, flat shape, dimension 450 mm X 180 mm X 40 mm as per IS 5820: 1970 complete all as specified and directed. |
| 10 | Supplying & laying in trenches 80 mm nominal bore, light grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 including taking down old complete all as specified and as directed. |
| 11 | S & F 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. |
| 12 | S & F XLPE cable end termination, heat shrinkable, outdoor type complete with jointing material and accessories suitable for voltage 11 kV (Earthed), 3 core 50 sqmm to 95 sqmm complete all as specified and as directed. |
| 13 | M & L for Filteration and dehydration of transformer oil by centrifuging machine includng heating continuously till obtaining the desired dielectric strength complete includuing taking result of transformer oil before/after filteration and dehydration of transformer oil all upto entire satisfaction of Engr-in-Charge. [Note:(i) Centrifuging machine shall be arranged by the contractor (ii) Transformer oil for filling/topping up and silica gel shall be measured and paid separately under relevant items of this schedule] |
| 14 | Supply and topping up transformer oil HV grade as per IS 335 of 1993 Part II having dielectric strength of not less than 40 KV in the transformer at various locations complete all as specified an directed. |
| 15 | M&L for preparation of surfaces and painting of transformer of capacity 250 KVA complete incl conservator tanks, fins etc with two coats of smoke grey synthetic enamel paint by spray painting machine complete all as specified and directed. |
| 16 | M&L for preparation of surfaces and painting of transformer of capacity 250 KVA to 500 KVA complete incl conservator tanks, fins etc with two coats of smoke grey synthetic enamel paint by spray painting machine complete all as specified and directed. |
| 17 | Disconnecting, taking down distribution transformer outdoor type 11 kV /0.433 KVA volts having capacity 50 to 100 KVA, transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded. |
| 18 | Disconnecting, taking down distribution transformer outdoor type 11 kV /0.433 KVA volts having capacity 100 kVA to 150 kVA transportation to the workshop for repairs including opening of transformers cover, draining of oil, de-tanking of core and coil assembly, cleaning, washing of dust and dirt from all parts including core, tank and cooling tubes radiators etc., joint inspection for estimate, replacement of defective parts, assembly, stage inspection, re-tanking, oil filtration/ dehydration, fill dehydrated oil and fresh oil and testing the repaired transformers for all the routine tests as per IS 2026 (Part 1): 2011 with latest amendments. Note: - (a) Transformer oil shall be drained out by the contractor in suitable capacity mild steel drums to be arranged by the contractor. The said drained out transformer oil shall be refilled in the transformer duly dehydrated after repair and the cost thereof shall be included in unit rate quoted against the respective item of this schedule. (b) Rewinding of both HT & LT coil shall be measured and paid for separately under respective item of this schedule. (c) Transportation charges for transportation of transformer from site to workshop and after repair, workshop to site shall be borne by the contractor and cost thereof shall be deemed to be included in the unit rate quoted for this item. (d) The spare parts excluding nuts, bolts, washer shall be measured and paid for separately (e) The said transformer shall be repaired in reputed workshop as decided by the GE. (f) Testing of transformer after repair shall be carried out as per IS 2026 (Part 1): 2011 and the cost of testing shall be deemed to be included in unit rate quoted against this item. (g) The IR value of the dried winding before inserting the core in the shell shall be measured and recorded. |
| 19 | Supply only LT leg coil of copper conductor for transformer of capacity 50 to 500 KVA complete with insulation, varnishing by vacuum impregnation and baking coil assembly, etc. as required complete all as specified and directted. Note - weight of LT leg coil shall be measured and paid as per actual measurement on ground |
| 20 | Supply only HT leg coil of copper conductor for transformer of capacity 50 to 500 KVA complete with insulation, varnishing by vacuum impregnation and baking coil assembly, etc. as required complete all as specified and directed. Note - weight of HT leg coil shall be measured and paid as per actual measurement on ground. |
| 21 | Disconnecting the distribution transformers outdoor / indoor type from HT/ LT system and opening carefully at site only by draining out transformer oil upto HT/LT boxes for rectifying the leakage by replacing the unserviceable spare parts of capacity 25 to 500 KVA transformer, refilling the transformer oil and complete assembling after repairs including testing for any oil leakages and connecting the HT/ LT system after the leakages have been rectified and tested on available electric load.Note :- Defective parts replaced will be measured and paid separately as \\"Supply only\\" under respective items here in after. |
| 22 | Supply only LT bushings with brass studs of existing specification complete all as specified and directed. |
| 23 | Supply only top cover cork gasket set as per existing size and shape for 25 kVA to 500 kVA capacity 11 kV/ 415 V transformer complete all as specified and directed. |
| 24 | Supply only HT bushing with brass studs 11 KV of existing specification complete all as specified and directed. |
| 25 | Supply and fix in replacement explosion vent diaphragm of suitable size to match with the existing complete all as specified and directed. |
| 26 | Supply and fix in replacement of breather assembly transparent plastic body with top and bottom portion pressed with metallic cover, filled with silica gel blue in colour and suitable for fixing on existing pipe of size 15/20/25 mm dia with suitable reducers/connectors etc as per site requirement /capacity of transformer complete all as specified andd directed. Note :- Rate quoted shall be deemed to include the cost of modification if any required to fix on existing MS Pipe. |
| 27 | Dismantling cross-arms of mild steel channel or angle sections etc. complete and setting aside by diconnecting all electrical connections for re-use or removing to store or for schedule of credit all as directed. |
| 28 | Dismantling HT/LT insulators any type, any size by diconnecting all electrical connections complete all as specified and as directed. |
| 29 | M & L for cross arms, bracings, supports, clamps, back plates and stay clamp 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 applying two coats of aluminium paint over a coat of red oxide primer complete all as specified and as directed. |
| 30 | Surface excavation not exceeding 30 cm deep and averaging 15 cm deep and getting out in hard/ sense soil complete all as specified and as directed. |
| 31 | M & L for cement concrete in foundation, filling and mass concrete in M7.5(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed. |
| 32 | M & L for cement concrete M15 (Nominal Mix) using 20 mm nominal size graded crushed stone aggregate in lintels upto 1.5 m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs, water troughs, slab staging for water tanks, filling of pressed steel door frame, fixing of hold fasts and the like including weathering, slightly rounded or chamfered angles and throating including necessary formworks complete all as specified and directed. |
| 33 | M & L for cement concrete in foundation, filling and mass concrete in M10(Nominal Mix) using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed. |
| 34 | M & L for steel tubular swaged pole 410 SP-55 (11.0 metre long) seamless type, including CI base plate, finial taper plug, bolts, nuts & screws as per IS 2713 Part -I & II including painting with two coats of bituminious paint over a coat of red oxide zinc chrome primer on exposed portion and making strips of width 30 cm upto 1.5 m from the ground level in black and yellow shade in alternate layer including numbering of poles using two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer and two coats of anticorrosive paint over a coat of red oxide primer to embedded portion of pole including making good to match existing area complete all as specified and as directed. Note- Earthwork and PCC shall be measured and paid seperately. Volume occupied by steel pole shall be deducted to derive the quantity of PCC. |
| 35 | Supply and lay stone aggregate of size 40mm graded layed on ground of two/four pole structure complete all as specified and directed. |
| 36 | M & L for replacement of danger notice plate of 1.6 mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with mild steel clamps, bolts and nuts of approved size, for HT, 250 mm X 200 mm complete all as specified and as directed. |
| 37 | Supply, install, testing and commissioning in replacement of 11KV outdoor type Polymer based gang operated air brake switch triple pole,suitable for verticle mounting complete with explusion fuses,GI operating rod of suitable length for operating mechanism worked from ground level complete in both OFF and ON positions, for current rating upto 200 Amps, each pole consist of galvanised steel base HT insulators as per BSS / ISS non ferrous knife and spring loaded contacts, arcing horns of adequate section to brake magenetizing current of the transformers, all ferrous parts hot dipped galvanised and non ferrous parts heavelly tinned to withstand weather complete all as specified and directed. |
| 38 | S&F in replacement Polymer based dropout fuse unit complete set suitable and including for 11 KV, HT outdoor and dropout type of capacity 200 Amps including jumper connections with copper flexible designed jumper and testing and commissioning complete all as specified and directed. |
| 39 | S&F in replacement Polymer Pin type insulator of 11 KV including necessary hardware complete all as specified and directed. |
| 40 | S&F in replacement Polymer disc type insulator,ball and socket type, 2 in series for 11 KV including necessary hardware complete all as specified and directed. |
| 41 | Supply and fix in replacement of synthetic insulating mat of size 2m x 1m x 19mm complete all as specified and directed. |
| 42 | Lifting/Shifting of Transformer of any size/capacity care fully by suitable transportation(crane) by opening of all HT/LT electrical connections, earthing strips foundation nuts and bolts etc after disconnected of HT/LT electric supply, and reconnection at shifting place after completion of PCC foundation complete all as specified and directed. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Jul 06, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedJul 27, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 19 daysJul 29, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 21 daysTender Documents
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