Tender For Repair/Maint Of Transformer, Ht Oh Lines And Its Allied Services At Mil Stn Lekhapani Under Ge Dinjan No 2
Tender Value
22 Lakhs
Estimated cost
Bid Submission
09 Nov 2026
12 days left
EMD
44000
Bank guarantee accepted
Document Fee
500
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Tinsukia → Assam
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Repair/Maint Of Transformer, Ht Oh Lines And Its Allied Services At Mil Stn Lekhapani Under Ge Dinjan No 2
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 28-Oct-2026 | AMENDMENT | Date | 09-Nov-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | M&L for steel tubular swaged poles complete with cast iron base plate, final taper plug, bolts, nuts and screws as specified type 410 SP- 55,11 metres long including erection, painting with two coat of synthetic enamel paint over a coat of red oxide or primer complete including taking down old unserviceable complete all as specified. Note Excavation earth work and PCC paid and measured seperately) |
| 2 | M&L for cross arms, bracings, clamps and back plates fabricated from structural steel section including nuts, bolts, washers, drilling holes for bolts in any shapes or size all as directed & painting of one primer coat and under coat and one finishing coat including taking out unserviceable material complete all as specified and as directed by Engineer-in-Charge. |
| 3 | M&L for stay assembly complete with accessories as shown in elect plate no- 1 of SSR for dia of stay rod 20 mm incl GI stay strand of size 7/3.15 mm (maximum length 11.00 mtr) to keep the pole in vertical position incl loop insulator stay all as specified and directed including dismantling and taking out old unsv stay assembly set complete (PCC will be measured and paid separately) |
| 4 | Supply and laying armoured HT UG cable XLPE insulated heavy duty electric cable with aluminium stranded conductor, 11000 volts grade (earth grade), cross sectional area 3 core 95 sq mm including taking out old unserviceable AB/UG cable/ OH conductor all as directed. |
| 5 | M&L for Excavation in trenches not exceeding 1.5 mtr wide and not exceeding 1.5 mtr depth for taking out/for laying under ground cables/pipes etc and getting out any type soil all as directed |
| 6 | All as per item No. 5 here-in before but depth exceeding 1.5 mtr and not exceeding 3 mtr. |
| 7 | M&L Returning filling in including spreading, levelling, watering and well ramming in layers n-exc 25 cm |
| 8 | M&L Removing excavated soil to a distance n-exc 50 mtr and depositing where directed at a level n-exc 1.5 mtr above the starting point |
| 9 | Supply and spreading fine river sand in trenches for cushioning of under ground cable/filling cable ducts all as directed by Engr-in-Charge at site Note : - Only punned thickness shall be measured for payment purpose |
| 10 | Supplying and laying un- reinforced precast concrete cable cover, class HV, Type 1, flat, size300mmx 180mm x 40mm complete all as specified and directed |
| 11 | S&F Gang operated air break switch, three poles, outdoor type, weatherproof, nominal system nominal voltage 11 kV, highest rated voltage 12 kV, rated normal current 200 Amps, 50 Hz, rated one minute power frequency withstand voltage between (i) earth & poles 28 kV (rms) (ii) across the isolating distance/ terminals 32 kV (rms), rated lightning impulse withstand voltage (i) to earth and between poles 75 kV (Peak) (ii) across the isolating distance/ terminals 85 kV (Peak), Rated short-time withstand current 25 kA for 3 seconds, rated peak withstand current 63 kA for climatic conditions at the site, mechanically operated mounted on suitable size of polymer insulator with fiberglass reinforced epoxy resin core rod having crreepage distance minimum 320 to 385 mm mounted on steel frame and structure with GI operating insulated handle connected with GI pipes and universal joints operating mechanism worked from ground level including dismantling and taking out old unsv one complete all as specified and as directed. |
| 12 | S & F expulsion fuse unit, single pole, 11 KV, current rating 200 Amps , 50 Hz, drop out fuse unit comprising of suitable size of polymer insulator including fixing accessories outdoor and weatherproof type set of three complete set including taking out old unsv one all as specified and directed. |
| 13 | S&F Lightning arrestor expulsion type complete with all fittings and polymer insulators, transmission class, High Tension discharge Capacity 65 KA suitable for 11000 volts Set of 03 including GI earth strip of 32x 6mm fixed on pvc insulators alongwith pole, making necessary electrical connections including taking down the existing unserviceable one all as directed and as specified by Engineer-in-Charge. |
| 14 | M&L for Filteration and dehydration of existing insulating oil of 11 kV transformer of various capacities, installed at different locations at station to achieve desired di-electric strength not less than 40 KV at 2.5 mm gap, by mobile filteration plant/machine using high vaccum purification to remove moisture, dessolved gases, solid impurities and heating system, complete all as specified and as directed by Engr-in-charge.Note: Transformer oil required extra for filling/topping up shall be measured and paid separately under the relevant items of this schedule. |
| 15 | Supply and topping up of new insulating transformer oil with duly filtered and tested insulating oil having not less than 50 KV di-electric strength at 2.5 mm air gap, moisture content should be less thn 30 ppm, zero Acidity and sludge for 11 kV Transformers of various capicity installed at different locations complete all as specified and as directed by Engr-in-Charge. |
| 16 | M&L for Replacement of Silica Gel breathers container including silica gel, suitable for transformers 11 KV/433 Volts, body material of transparent polycarbonate/ acrylic tube or weather resistant metal body withdie cast aluminium top and bottom covers with suitable connection size of 400 KVA capacity incl taking down old u/s all as specified. |
| 17 | All as per item No 16 above but 200/250 KVA |
| 18 | All as per Item No 16 above but 100 to 160 KVA |
| 19 | M & L for spray painting distribution transformer after removing the existing oil stains by paint removers, cleaning with scrapers, preparing surface and painting with two coats of grey synthetic enamel paint over a coat of red oxide primer incl writing SM/MES No whith white enamel paint all as directed for upto 400 KVA capacity transformer complete all as specified and as directed by Engr-in-Charge. |
| 20 | M&L for Removing the top cover from body of the transformer after disconnecting the cable, removing the unserviceable HT bushes and S&F in repair porcelain vitreous HT side bushings with Brass studs (Set of 03 ) including checking and tightening internal electric connections and fixing back the top cover with new gasket and nuts, bolts suitable for distribution transfomer of capacity upto 400 KVA all as specified and directed by engr-in-charge. Note :- bushing will be replaced including draining out transformer oil from the existing level & refilling the same. |
| 21 | M&L for Removing the top cover from body of the transformer after disconnecting the cable, removing the unserviceable LT bushes and S&F in repair porcelain vitreous LT side bushings with Brass studs (Set of 03) including checking and tightening internal electric connections and fixing back the top cover with new gasket and nuts, bolts suitable for distribution transfomer of capacity upto 400 KVA all as specified and directed by engr-in-charge. Note :- bushing will be replaced including draining out transformer oil from the existing level & refilling the same. |
| 22 | S&F Danger notice plate of not less than 2.0 mm thick made of durable acrylic sheet feaures the word \\"DANGER\\", voltage rating 11KV,11000 Volts and the standard skull and crossbones warning symbol designed with striking red colour on white background fixed with GI clamps and nut bolts of 25 x 20 CM size for HT 25x20cm size complete including taking out old all as specified and directed by the Engineer-in-Charge |
| 23 | Dismantling ACSR conductors from the disturbed span including jumper, removing the binding with insulator, of any size for HT OH Line/ structures, etc complete all specefied and as directed |
| 24 | Supply, fixing and stringing for ACSR (Aluminium conductor steel reinforced) of any size and type in accordance with site requirement and binding on insulator by means of 22 gauge aluminium binding wire to permissible sag complete all as specified and as directed. |
| 25 | M&L for dismantling of UNSV Transformer 1000 KVA, 33KV/11KV complete by draining of oil completely and kept in safe custody, dismantling of winding from core complete both HT & LT, including disconnection of all ancillary components Buchholz relay, other protective devices, Temprature & Pressure gauges for carrying out the following repair works including re-assembling complete after repair including all neccessary testing as per IS-2026 complete all as specified and and directed. (i) Insulation material of complete HT Coil - 24 Nos, (ii) Rewinding of lT coil (inclusive of material & labour) - 03 Nos , (iii) Rewinding of HT Coils - 24 Nos, (iv) Rewinding of LT Coils - 03 Nos, (v) Suplly of new transformer oil - 1050 ltr, (vi) Dismantling of Coils, removal of insulation, assymbly, Ovening, box up of the Transformer, Painting of Transformer including complete filtration of new oil (vii) Testing of Transformer i.e Winding resistance, Transformer Turn ratio, Short circuit impedance test, Open circuit Test, DVDF, High Voltage Test, Magnetic Balance Test, Oil BDV test (viii) Loading, unloading, transportation, and shifting of transformer including connection, testing after connection all as specified and directed incl submission of all test reports. |
| 26 | S&F Pin type Polymer insulator 320 cd 5 kn for 11KV grade complete including all accessories, nuts, bolts etc and including dismantling of old unserviceable porcelain insulators complete all as specified and as directed. |
| 27 | S&F Disc type Polymer insulator 320 cd 45 kn for 11KVvolts grade complete including all accessories yoke, clamps, nuts, bolts etc and including dismantling of old unserviceable insulator all as specified and as directed. |
| 28 | Repairs/maint to complete 4 Pole structure (HT 11KV Line controled) with repairs to AB switch (GOD), Lightning arrestosr, drop out fuse unit and replacing ACSR conductor transmission connection sysytem on the top of structure with straightning of jampers / proper spacing/ desired sag between the conductors/ proper binding on the insulators/ tightening the insulators including replacement of male and female contacts of GOD, nuts & bolts and cleaning the carbon/ dust deposited on the switch contact surfaces and applying mineral jelly, oil grease to the moving/ rotating parts etc after cleaning, removing carbon deposits including testing and commissioning the same for operation complete all as directed by Engr-in-charge. Note: The repairs to Four poles structure complete will be measured as one job. |
| 29 | M&L Painting of four pole structure consisting of 4 Nos Steel/PSC pole 9 M above GL with channels, clamps, bracings, supports, etc by preparing the surface and applying two coats of aluminium paint or cement base paint as per direction all as specified and as directed by Engineer-in-charge |
| 30 | M&L Painting of two pole structure consisting of 2 Nos Steel/PSC pole 9 M above GL with channels, clamps, bracings, supports, etc by preparing the surface and applying two coats of aluminium paint or cement base paint as per direction all as specified and as directed by Engineer-in-charge |
| 31 | M&L for two coats Aluminium paint/ cement based paint as per direction over the exisiting steel/PSC poles 7.5/9.20 mtrs above ground including cross arms/ bracings/ clamps etc complete all as specified after cleaning the existing poles and making good surface and surrounding and writing the pole numbers with white letters on black background all as specifeid and directed by the Engr-in-charge. |
| 32 | M&L for boring under road, pavement, hard standing, railway lines by trenchless technology using latest boring technique or manually boring technique and necessary machine for insertion of GI pipe of 50 mm to 100 mm nominal bore complete all as specified and as directed. |
| 33 | Supply and fixing GI pipe light grade for cable protection , laid in trenches or fixed on pole/wall for passing HT/LT cables of sizes 80 mm dia including taking out old rusted pipe. |
| 34 | Material and Labour for Heat shrinkable HT 11 KV out door termination joint kit for XLPE 11 KV 3 Core cables of size 50 to 95 Sqmm with jointing materials including taking down old unserviceable complete all as specified. |
| 35 | Material and Labour for Heat shrinkable HT 11 KV indoor termination joint kit for XLPE 11 KV 3 Core cables of size 50 to 95 Sqmm with jointing materials including taking down old unserviceable complete all as specified. |
| 36 | Supply, joint, test, HT outdoor type cable straight through jointing kit Heat shrinkable type suitable for HT 11 KV XLPE armoured aluminium cable of size 50 to 95 Sqmm 3 Core with necessary jointing materials straight through, including taking down old unserviceable complete all as specified. |
| 37 | M&L for cement concrete type D2 1:4:8 using 40 mm graded aggregate for making good surfaces in road cutting, pole foundation, stay assy foundation, and in base of outddor HT installation for providing firm clean platform for protection from moisture/ wild bushesh etc all as directed |
| 38 | M&L for plain cement concrete type C1(1:3:6) using 20 mm graded stone aggregate as in coping/foundations and for providing firm level base alongwith HT installtions to preventing moisture/ wild bishesh including necessary form work and finishing exposed surface/white washing all as directed. |
| 39 | Rough excavation not exceeding 1.5 m deep and getting out in hard/dense soil complete all as specified and directed. |
| 40 | Supply and Filling crushed stone aggregate 40 mm grade in sub stn or at 4 pole, 2 pole, 3 pole structure complete and cleaning and leveling all as directed |
| 41 | Supply and Filling crushed stone aggregate 20 mm grade in sub stn or at 4 pole, 2 pole, 3 pole structure complete and cleaning and leveling all as directed |
| 42 | Demolition of brick work built in cement mortar including all quoins , arches, pillars, wall and parapet walls etc complete al as specified and directed. |
| 43 | M&L brick work with sub class 'B' old burnt brick, straight or curved on plan exceeding 6 m mean radius built in cement mortar (1:4) complete all as specified. |
| 44 | M&L for rendering 10 mm thick on fair faces of brick work or concrete surfaces with 1:4 cement plaster all as specified and directed. |
| 45 | M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 32 mm X 6 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point/panel upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete incl taking down old u/s all as specified and as directed by the Engineer-in-charge. Please Enable Macros to View BoQ information |
| 46 | M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 32 mm X 6 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point/panel upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete incl taking down old u/s all as specified and as directed by the Engineer-in-charge. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Oct 28, 2026
11:30 IST
Tender Published
Tender notice published.
Today
Nov 09, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 12 daysNov 09, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 12 daysNov 16, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 19 daysTender Documents
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