Tender For Repair/Maintenance Vcb, Transformer ,Ht Ug Cable O/H Acsr Conductor And Allied Works At Af Stn Darbhanga Under Ge(Af) Bihta
Tender Value
14.99 Lakhs
Estimated cost
Bid Submission
02 Oct 2026
16 days left
EMD
29980
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Patna → Bihar
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Repair/Maintenance Vcb, Transformer ,Ht Ug Cable O/H Acsr Conductor And Allied Works At Af Stn Darbhanga Under Ge(Af) Bihta
BOQ
| Sl. No. | Item Description |
| 1 | Excavation in trenches in any type of soil, n. exc. 1.5m wide and n. exc. 1.5m deep and getting out for laying of cables/pipes etc including forming bottom surfaces to the required level/slope complete all as specified and directed. |
| 2 | Excavation in trenches not exc. 1.5m wide and exc.1.5m & upto 3.0m in depth for foundation of stay/ pole and etc and getting out for laying of cables/pipes etc including forming bottom surfaces to the required level/slope complete all as specified as directed. |
| 3 | Returning filling in, including spreading, leveling, watering and well ramming in layers n.exc 25 cm thick in any type of soil complete all as specified as directed. |
| 4 | Removal of surplus excavated soil to a distance n. exc. 50 m and depositing where directed at a level n. exc. 1.5 m above starting point complete all as specified as directed. |
| 5 | M&L of locally available river sand in trenches below and above / around UG cable for cable protection, in duct under & above the cables including punning around cable complete all as specified and directed. |
| 6 | Supply & laying unreinforced precast concrete cable cover, class HVP, type-1, flate, size 300mm x 180mm x 40mm complete all as specified and directed. |
| 7 | Supply and laying Galvanised iron pipe \\"light grade\\" 80mm bore in trenches, under floors, roads, along poles for protection of cable with all necessary fittings, including sealing ends complete all as specified and directed. |
| 8 | Cutting the existing road straight by manual, depth and width not less than 1 mtr below ground level for passing of underground cable and filling back with excavated soil upto 75% road portion and 25% shall be made with cement concrete 1:2:4 (using 20 mm graded aggregate stone complete all as specified and directed. |
| 9 | M&L for scrubbing out old paint, rust etc from 11 mtr , 11 KV HT pole of any size & any type including cross arms, brackets & anti climbing divices and making smooth and even surface then painting with one coat of anti rust paint and two coat of superior quality aluminium paint on entire exposed portion of pole structure and writing Abbreviated feeder name in 2 \\" size with white paint on black base complete all as specified and directed. (work shall be completed in the stipulated period as directed by Engineer -in-charge). |
| 10 | M&L for scrubbing out old paint external surfaces of HT 2 pole structures consisting of cross arms, GOD assy with pipe, DO fuse assy, clamps etc., of any description and applying one coat of Aluminium paint by mannualy (Except PCC/RCC Pole) complete all as specified and directed. This rate inclusive of painting all minor items such as clamps, brackets, nuts, bolts and washers which is not particularly mentioned inthe structures & Each job will be measured and paid. |
| 11 | Material and labour for preparation of steel surface of any description for painting of fencing posts, MS flats, MS welded mesh inside or out side power house or sub stn with two coat of synthetic enameled paint over a coat of red oxide primer complete all as specified and directed. |
| 12 | M&L for painting of transformer of capacity upto 100 KVA to 315 KVA with two coats of smoke grey synthetic enamel paint externally after necessary preparation to surfaces including numbering SM/MES No. with white paint, etc complete all as specified and directed. |
| 13 | Servicing of air break gang operated switch and DO fuse unit upto 400 amps capacity , 11 KV vertical or horizontal type mounted including insulator and operating mechanism and repair/ replacement of broken/worn out component, insulator etc for smooth functioning including oiling and greasing and testing complete all as specified and directed. Note:- Spares shall be measured and paid separately as supply only under respective item. |
| 14 | Supply only Airbreak switch spares for item no 13 |
| 15 | (a) Male contact/moving contact blade |
| 16 | (b) Female contact/Fix contact Jaw |
| 17 | (c) Tinned copper Flexible jumper 200A/400A |
| 18 | (d) Ms jumper carrier |
| 19 | (e) Back connector plate |
| 20 | (f) Petroleum Jelly |
| 21 | Supply & laying inreplacement of HT XLPE, insulated screened PVC bedded, galvanised steel strip or wire armoured, electric power cable heavy duty with stranded aluminium conductor, 11000 Volt Grade of size 95 Sqmm 3 core including jointing and testing complete all as directed by Engr-in-Charge. |
| 22 | Supply, fixing cable jointing kit 11 KV grade cable for out door termination heat shrinkable type joint complete with jointing material & accessories suitable for 3 core XLPE armoured cable alumininum conductor 50 to 95 sqmm complete all as specified and directed. |
| 23 | Supply, fixing cable jointing kit 11 KV grade cable for indoor termination heat shrinkable type joint complete with jointing material & accessories suitable for 3 core XLPE armoured cable alumininum conductor 50 to 95 sqmm complete all as specified and directed. |
| 24 | Ditto all as per item No.16 above but straight through joint suitable for cross section area 50 to 95 sqmm 3 core XLPE.Complete all as specified as directed. |
| 25 | Supply, erection, laying, stringing, fixing and replacement of existing damaged 11 kV AB cable with 11 kV grade 95 Sqmm 3 core XLPE insulated aluminium conductor aerial bunched cable complete with bare aluminium messenger wire of size 70 Sqmm including suspension arrangement, dead end arrangement, binding, dressing, sagging, jointing, jumper connection, cable support accessories, eye hooks, clamps, nuts, bolts and all associated materials complete all as specified in all respects for proper transmission and safe operation as directed by Engineer-in-Charge. |
| 26 | Supply and fixing of straight through joint for 11 kV, 95 Sqmm 3 core XLPE insulated aluminium conductor aerial bunched cable with 70 Sqmm bare aluminium messenger wire using approved type heat shrinkable/resin cast jointing kit including ferruling, crimping, insulation, binding, messenger continuity arrangement, testing and commissioning complete in all respects for safe and reliable operation as directed by Engineer-in-Charge. |
| 27 | Supply and fixing of outdoor type heat shrinkable end termination kit suitable for 11 kV, 95 Sqmm 3 core XLPE insulated aluminium conductor AB cable complete with stress control tubes, anti-tracking tubes, rain sheds, cable glands, aluminium lugs, ferrules, insulation materials and all associated accessories including crimping, termination, testing and commissioning complete in all respects for safe and reliable outdoor operation as directed by Engineer-in-Charge. |
| 28 | Supply and fixing of precast PCC underground cable route indicator of size 1200 mm long × 200 mm wide × 75 mm thick with semicircular curved top of 200 mm dia, embedded in PCC foundation of size 300 mm × 300 mm × 300 mm complete. Marker shall have embossed/engraved lettering “11 kV HT CABLE” in 50 mm height letters alongwith feeder identification and direction arrow, painted with approved red/white or yellow/black enamel paint complete all as specified and directed. Portion above ground 600 mm and below ground 600 mm complete including excavation, refilling, PCC (1:3:6) , labour and all necessary materials, complete all as specified and directed by Engineer in Charge. |
| 29 | M&L for filtration of transformer oil using automatic centrifuging machine (heating oil at 40 to 50 degree C) to achieve min. 35 KV breaking capacity at 2.5 mm gap by absorbing and abolishing all sludge particles for use as per BS-B 66-1983 complete all as specified and directed by Engineer-in-Charge. Note: - The contractor shall provide a dedicated DG set of suitable capacity for the transformer dehydration plant to ensure uninterrupted power supply during dehydration operations. |
| 30 | Supply, filling and topping up new transformer oil low viscostly type of min dielectric strength of 60 KV breaking voltage at 2.5mm gap conforming to IS complete for indoor/ outdoor transformer complete all as specified and directed. |
| 31 | M&L for servicing overhauling & Maintenance of 11 KV HT VCB installed at Substation complete including the following :-(a) Switching off HT Breaker isolating from incoming supply (b) Testing & callibration of all moving & fixing contacts.(c) Testing & checking of following:-(d) Low voltage coil,(e) Over voltage coil,(f) No volt coil,(g) Testing & Checking of all internal wiring connection,(h) CT & Relay testing primary injection kit .(i) Other relay testing.(k) Check all DC&AC supply connection .(l) Testing of all LED indicator lamps.Complete all as specified and as directed. |
| 32 | Taking out defective/wornout parts from VCB 11KV and S&F new of the following description :- |
| 33 | (a) Closing Coil 24 volt DC,1.7 Ohm, |
| 34 | (b) Tripping Coil,24 volt ,DC ,1.7 Ohm. |
| 35 | (c ) Auxiliary Switch, 32 Amp,440 volts. |
| 36 | (d) Spring Charging Moter assy complete - 150w, Rpm-10,AC/DC. |
| 37 | (e) Motor cut off switch, |
| 38 | (f) Breaker Control Switch,02 Amp,220Volts, |
| 39 | (g) Rollers |
| 40 | (h) Big Gear Assembly |
| 41 | (i) Small Gear Assembly |
| 42 | (k) Trip Clutch Assembly Hardner Kit |
| 43 | (l) Indicating lamp Y, R, B Each set of three |
| 44 | (m) CT 100 - 50/5 +5A,11KV suitable for Incomming VCB (As per IS-2705, IEC-60044 make and size as per sample) |
| 45 | (n) PT, 11KV suitable for Incommer VCB as per sample or per Site Requirement. ( Set Of Three) |
| 46 | (o) Insulator suitable For VCB bus bar (make and size as per sample) |
| 47 | (p) HT insulation tape make and size as per sample |
| 48 | (q) VCB over current and Earth Protection Relay (Make and size as per sample) |
| 49 | (r) Nut bolt washer suitable for 11KV busbar ( Make and size as per sample) |
| 50 | (s) Voltmeter with 3 Ph ( R-Y- B) Digital of rating 0-11000 Volt ( Make and size as per sample) |
| 51 | (t) Ammeter with 3 Ph ( R-Y- B) Digital of rating 0-100 Amp (Make and size as per sample) |
| 52 | (u) Space heater (Make and size as per sample) |
| 53 | (v) PT Fuse (Make and size as per sample) |
| 54 | M&L for calibration of Digital Relays settings installed on VCB,11KV, for over current and Earth fault settings as makers mannual. |
| 55 | Supply and fixing inreplacement of Lithium Ion battery 25.6 volt 100AH each set for operating 11/ 33 KV VCB (for Providing AC&DC supply for control Circuit), operating 24 Volt mounted on insulator mats and steel frame, with connection copper wire for Voltage rating upto 24 V etc complete all as specified and directed. |
| 56 | Supply and fixing inreplacement of Sine wave Inverter of Rating 2350 VA Compitable for Item No.35etc complete all as specified and directed. |
| 57 | M&L for Moisture absorbing dew guard 150 mm x 150 mm size for HT VCB 11 KV for absorbing condensed water from VCB made out of synthetic rubber and super absorbent polymer and covered by a non-woven fabric to maintain a constant level of humidity in side VCBs capable to with stand temparature from - 30 degree to + 90 degree centigrade. The dew guard should be halogen free and silicon free , environmental friendly and can be dispossed of in regular trash. The rates quoted incl fixing inside VCB with strong adhesive double sided tape complete all as specified and as directed. |
| 58 | Tightening and re-stringing of existing loose over head conductor (ACSR/Copper/GI continuous earth wire) any type on LT/HT poles including replacement of binding wire of required size and shape from insulators & jumpers, stringing and tightening of conductor to permissible sag complete all as specified as directed.Note:- All three Phase conductors (R,Y,B) to be measured as one unit. |
| 59 | Trimming, pruning and cutting of tree branches, bushes, shrubs and other vegetation obstructing or dangerously close to 11 kV overhead line from pole to pole span at any height by making contractor’s own arrangement of ladder, rope, hydraulic platform, safety belt, tools & plants and skilled manpower including removal and disposal of cut vegetation and maintaining statutory electrical safety clearance complete all as specified and as directed by Engineer-in-Charge.Note :-(i) Necessary shut down where required be taken from MRS and time and date will be as per direction of Engr-in-Charge.(ii) The tree branches shall be 2 Mtr away from the outer conductor of OH lines after cutting. |
| 60 | M&L in replacement of lighting arrestor explosion type class discharge cap 65KA suitable for 11 KV system for out door use with all fittings and connecting to electrical system including taking down existing unserviceable lightening arrester complete all as specified as directed. |
| 61 | M&L in replacement for AB Switch triple pole, mechanically operated, mounted on insulator and steel frame, with operating mechanism worked from ground level, for current rating upto 400 amps suitable for 11000 volts complete all as specified and directed. |
| 62 | Disconnecting HT, LT and earth connections from transformer out door/ indoor type, pole mounted/ plinth mounted 11/0.433 KV, capacity ranging 100 KVA to 315 KVA, lifting the transformer by using hydraullic crane and load the same in a suitable truck to transport to the manufacturer's workshop. Un loading the same by using hydraullic crane, drain out insulating oil complete to take out the core assy, replace the damaged HV/LV leg coils with proper gauge copper wire, re insulation the complete core/windings with proper insulation materials, complete servicing and ovening of transformer as specified, filter the insulation oil minimum three cycles upto 400 Ltrs quantity to receive the proper value of dielectric strength, testing the oil for not less than 40 KV BDV, refilling the same to the transformer, toping up with new transformer oil upto the marked level, re assembling complete accessories including testing of transformer at work shop as specified and directed by Engr in charge. Loading the transformer and transporting back to the substation, installation on the existing foundation/ structure including HT, LT, and earthing connections, carry out magnetic test and other specified tests after transportation of the transformer and commissioning in all respect to the satisfaction of Engr in charge. Note :- (i) The copper wire of suitable gauge for rewinding of damaged portion will be measured and paid under respective items of this schedule. (ii) The oil used for topping up of transformer oil and dehydration of existing oil will be measured and paid under respective item of this schedule. |
| 63 | Supply & fix HV bushing 11 KV for transformers upto 630 KVA capacity complete all as specified and directed. |
| 64 | Supply & fix LV bushing 0.433 / 0.415 KV for transformer upto 630 KVA capacity complete all as specified and directed. |
| 65 | Supply only HV spindle (metal part) made out of brass with nuts and washers complete for transformer upto 630 KVA capacity complete all as specified and directed. |
| 66 | Supply only LV spindle (metal part) made out of brass with nuts and washers complete for transformer upto 630 KVA capacity complete all as specified and directed. |
| 67 | M&L for provision of sledge phase barrier etc. and dehydrating the HT/LT windings in oven to remove the moisture for Srl item no 35. Complete all as specified and directed. |
| 68 | M & L for replacement of all gasket of top cover, HV & LV bushings etc. complete including of radiators 11/0.415 KV, 100 to 630 KVA transformer for Srl item no 35. Complete all as specified and directed. |
| 69 | M & L replacement of worn out Copper wire for LT winding of transformer of cap upto 315 KVA for Srl item no 35 complete all as specified and directed. |
| 70 | M & L replacement of worn out Copper wire for HT winding of transformer of cap upto 315 KVA for Srl item no 35 complete all as specified and directed. |
| 71 | Arresting leakage of transformer fins by replacing/ brazing etc, after removing of oil from inside of transformer and refilling of oil by opening top cover of transformer of capacity upto 315 KVA complete all as specified and as directed. |
| 72 | Tracing out fault in 11KV /33 KV underground cable any size with the help of fault tracing machine and rectifying the same with joints as specified and directed to restore the supply complete all as specified. Note:- (i) Joint kit shall be measured and paid separately. (ii) Earth work shall be measured and paid separately. However, width of trenches shall be allowed for payment as per authorized width given in SSR for each size of cable.(iii) All other necessary arrangements suitable for locating the faults deemed to be included in the unit rate quoted.(iv) T&P required for the entire job shall be provided by the contractor at his own end and nothing extra shall be admissible on this account.(v) Cable required, if any shall be measured and paid for separately. Please Enable Macros to View BoQ information |
| 73 | Tracing out fault in 11KV /33 KV underground cable any size with the help of fault tracing machine and rectifying the same with joints as specified and directed to restore the supply complete all as specified. Note:- (i) Joint kit shall be measured and paid separately. (ii) Earth work shall be measured and paid separately. However, width of trenches shall be allowed for payment as per authorized width given in SSR for each size of cable.(iii) All other necessary arrangements suitable for locating the faults deemed to be included in the unit rate quoted.(iv) T&P required for the entire job shall be provided by the contractor at his own end and nothing extra shall be admissible on this account.(v) Cable required, if any shall be measured and paid for separately. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 11, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 02, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 16 daysOct 09, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 23 daysTender Documents
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