REPAIR MAINTENANCE OF HT 11 KV OVER HEAD LINE HT STEEL PCC POLES UG CABLE JOINT KIT GOD AND CONNECTED WORKS UNDER GE DINJAN

Amount

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 not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft or loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft or loose soil complete all as specified and as directed.

Removing excavated material (soils) 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 as directed.

Supply & spreading in trenches sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and directed

Supply & laying unreinforced precast concrete cable cover class HV type 1, flat shape, dimension 300 mm X 180 mm X 40 mm as per IS 5820: 1970 complete all as specified and directed.

Surface dressing of installation and sub station area by removing of grass, creepers from ground by excavation upto 15cm, removing grass artound the buiding and spreading chemical to limit the growth of grass vegitation, fencing and surrounding area of installation building complete all as specified and directed directed.

Opening top cover of transformer of capacity 50 kVA to 500 kVA at site for replacement of old unserviceable partsor components & reassembling & testing complete all as specified and as directed. Note : Unserviceable spare parts or components shall be measured and paid separately as supply only.

Supply only LT Bush insulators as per existing size and shape for 350 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only LT Bush insulators as per existing size and shape for 50 to 250 kVA capacity transformers complete all as specified and as directed.

Supply only LT Brass stud as per existing size and shape for 350 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only LT Brass stud as per existing size and shape for 50 to 200 kVA capacity transformers complete all as specified and as directed.

Supply only HT Brass stud as per existing size and shape for 50 to 200 kVA capacity transformers complete all as specified and as directed.

Supply only HT Brass stud as per existing size and shape for 200 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only gasket (set of four) for LT bushing as per existing size & shape complete for the 350 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only gasket (set of four) for LT bushing as per existing size & shape complete for 50 to 250 kVA capacity transformers complete all as specified and as directed.

Supply only gasket (set of four) for HT bushing as per existing size & shape complete for the 350 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only gasket (set of four) for HT bushing as per existing size & shape complete for 50 to 250 kVA capacity transformers complete all as specified and as directed.

Supply only top cover gasket set as per existing size and shape complete for 350 to 500 kVA capacity transformers complete all as specified and as directed.

Supply only top cover gasket set as per existing size and shape complete for 50 to 250 kVA capacity transformers complete all as specified and as directed.

Supply only breather including silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of capacity from 100 to 500 kVA complete all as specified and as directed.

Supply only silica gel, of approved make / ISI make, confirming with IS code, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of any capacity all as specifed and directed.

M & L for spray painting of transformers (any type power or distribution)) of capacity upto and including 63 to 500 kVA ( in situ ) outdoor type, installed and located at different sites in scattered area under the GE including the following: - (a) Preparation of old surfaces by cleaning, scrapping, rubbing or polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make or quality all as directed at site. (c) Writing the SM MES No of transformer on MS body of transformer all as directed .

Supply only new transformer oil of approved make of dielectric strength not be less than 60 kV and conforming to IS-335 of 1993 for filling or topping up oil of transformer up to desired level complete all as specifed and directed.

Dehydration and filtration of existing transformer oil of transformer at different location with filtration machine and heating system to get the minimum di-electric strength of oil 40 kV minimum without disturbing the power supply system and refilling or topping up or replacement of unserviceable transformer oil complete all as specified and as directed. Note: Transformer oil required extra for filling or topping up shall be measured and paid separately under the relevant items of this schedule.

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 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 all as specifed and directed.

S & F XLPE cable end termination, cold shrinkable, indoor type complete with jointing material and accessories suitable for voltage 6.35 kV/ 11 kV (Earthed), XLPE, armourned, Al conductor cable of size 3 core 95 sqmm including taking down complete all as specified and as directed.

S & F XLPE cable end termination, cold shrinkable, outdoor type, suitable for voltage 6.35 kV/ 11 kV (Earthed), 3 core 95 sqmm complete all as specified and as directed.

S&F Cable jointing kit straight through for 11 KV (Earthed) grade cold shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable 95 sqmm all as specifed and directed.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity upto and including 63/75 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. 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 including nuts, bolts, washer included in quotaed raets. (e) The said transformer shall be repaired in reputed workshop as directed 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.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 100kVA , 150kVA, 200 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. 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 likes 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.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 250KVA to 315 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, 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 likes nuts, bolts, washer included in quotated rates. (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.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 400 kVA/ 500 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, 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 likes nuts, bolts, washer included in quotated rates . (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.

M & L for rewinding of coils on primary side of transformer of any capacity using proper size, double paper covering, copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415V transformer complete all as specified and as directed.

M & L for rewinding of coils on secondary side of transformer of any capacity using proper size, double paper covering, ordinary copper winding wires conforming to IS 7404 (Part-1): 1991 as per existing size, turns and insulation class including connecting minor insulation materials suitable for 11 kV/ 415 V transformer complete all as specified and as directed.

Dismantling air break gang operated switche S & F gang operated air break switch, three poles, outdoor type, nominal system voltage 11 kV, rated voltage 12 kV, rated normal current 200 Amps, rated frequency 50 Hz, with 15 no of insulators, rated one minute power frequency withstand voltage between (i) earth & poles 28 kV (rms) (ii) across the isolating distance 32 kV (rms), rated lightning impulse withstand voltage (i) to earth and between poles 75 kV (Peak) (ii) across the isolating distance 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 insulator and steel frame with operating mechanism worked from ground level for current complete all as specified and as directed.

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.

Supplying & laying in trenches, in road cutting and along pole 100 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 complete all as specified and as directed.

Supply of labour including T&P for finding any type of fault in HT UG Cable with help of cable fault locator machine including restoration of supply complete all as specified and directed by Engr-ion-charge. Note- (a) Cable fault locator machine shall be available at MRS at the time of cable fault. No extra payment will be given for machine. it should be included in quoted rates of this item. (b) Cable jointing kit shall be measured and paid seprately under relevant item. If cable fault locator machine not found avaiolable at MRS at the time of fault, panelty of Rs 2000 per day per complaint will be levied.

Taking down HT cable of any size from the treach carefully to reuse serviceable cable all as directed by Engr-in-Charge. Note :- excvation, returning fiiling, spredding of soil shall be measured and paid seperatly in relevent item.

Laying and testing cross linked polyethylene (XLPE) insulated, PVC sheathed cables for working voltages 6.35 kV/ 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 complete all as specified and as directed.

Laying only unreinforced precast concrete cable cover class HV type 1, flat shape received from taking down old Ht cable complete all as specified and directed.

M & L for cement concrete in foundation, filling and mass concrete in M15(Nominal Mix) type C2 1:3:6 using 40 mm nominal size graded crushed stone aggregate complete all as specified and as directed.

M&L Providing and laying 60 mm thick factory made cement concrete interlocking paver block of M35 grade conforming to IS 15658-2006 made by block making machine with strong vibratory compaction, of approved size, design & shape, cast in rubber mould, glossy finish of approved colour, laid in required colour and pattern over and including 30 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. complete all as specifed and directed.

S & F disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type, white, brown or green, two-in-series assembly for tension with tension clamps for conductors, working pressure 11000 volts complete all as specified and as directed.

S & F pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150 mm dia for 11000 volts grade complete all as specified and as directed.

Restringing of old aluminium conductor steel reinforced (ACSR) or AAAC conductor of any size and make on HT 11 m long poles including replacement of binding wire and aluminium taps reconnection and binding to insulators with suitable size of new binding wire by means of pulley, rope etc complete all as specified and as directed. Note : 03 Nos of ACSR conductor shall be measured as one unit length.

Dismantling HT/LT insulators any type, any size by diconnecting all electrical connections complete all as specified and as directed.

Dismantling RCC poles/ struts, any size, setting aside for reuse within 50 metres complete all as specified and as directed.

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 shall be measured and paid seperately. Volume occupied by steel pole shall be deducted to derive the quantity of PCC all as specifed and directed.

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 and taking down old unsv complete all as specified and as directed.

M & L for preparing and painting and painting on steel tubular swaged pole 410 SP-55 (11.00 metre long) including cross arms, GI brackets with two coats of aluminium paint over a coat of aluminium red oxide primer on exposed portion and including 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 complete all as specified and as directed.

Clearing tree branches upto 3 metre distance from conductor complete all as specifed and directed.

Clearing of vegetation/ creepers/ grass etc. from surrounding of poles upto 3 meter dia and spreading chemical pole complete all as specifed and directed.

M & L for cradles, hexagonal/rectangular, fabricated with galvanised steel wire 3.15 mm or 4 mm dia complete all as specified and as directed.

Supply and fix male contact /moving contact blade for gang operated air break switch all as specifed and directed.

Supply and fix female contact/fix contact jaw for gang operated air break switch all as specifed and directed.

Supply and fix tinned copper flexible jumper for gang operated air break switch all as specifed and directed.

Supply and fix mild steel jumper carrier for gang operated air break switch all as specifed and directed.

Supply and fix back connector plate for gang operated air break switch all as specifed and directed.

Supply & applying of petroleum jelly for gang operated switch break all as specifed and directed.

M & L for 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 LT, 250 mm X 200 mm complete all as specified and as directed.

Supply and erection in repairs of three piece metal oxide lightning arrestor suitable for 11 kV continuous operating voltage (3 phase) with rated voltage 12 kV (rms) with nominal discharge current rating of 2.5 kA and complete with galvanised clamping arrangements, GI bolts, nuts, washers etc. complete as specified and as directed.

Supply and fix with foundation precast RCC cable route indicator with embrossing mark as "HT /LT CABLE " duly painted with approved colour of size 75cm x 15cm x 7.5cm over existing UG HT/LT cable all as specifed and directed.

Excavating in trenches exceeding 1.5 m wide and upto 3.0 in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable layingh and getting out in soft/ loose soil complete all as specified and as directed.

Anti climbing devices; comprising 2.24mm dia galvanised steel 2-strand barbed wire with 2.00mm dia barbs wrapped spirally round poles, to a length of 0.5 to 1.0 metre clamped and properly secured or as ordered (clamps measured separately

M&L for cement concrete (1:2:4) type B-1 (using 20 mm graded stone aggregate) as in coping of pole including necessary form work for fair finish surfaces complete all as specified and as directed.

M/S A D ASSOCIATES (BID ID -3282091)

R D Enterprises (BID ID -3282135)

M/s HALDER ENTERPRISE (BID ID -3282826)

Shree Trilok Electric Corporation (BID ID -3282550)

M/s PRABIR ENTERPRISE (BID ID -3282738)