REPAIR MAINT OF HT 33 KV NETWORK HT SWITCH GEAR and 11KV MAIN DISTRIBUTION SUBSTATION UNDER GE DINJAN

Amount

Surface dressing of installation/sub station area by removing of grass, creepers, etc. from the roof of the building, in fencing and surrounding area of installation building complete all as specified and directed.

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.

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.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

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

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 by Engr-in-Charge

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

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

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

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

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

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

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

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

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

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

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

Supply only temperature gauge of range 0⁰ to 200⁰C for indication of temperature rise in transformer oil for transformers upto 500 kVA capacity.

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.

Supply only silica gel, indicating type, 4 to 6 mm standard size of the particle, blue colour for transformer of any capacity.

M & L for spray painting of transformers (any type power or distribution)) of capacity upto and including 100 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/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / 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 dielectric strength not be less than 60 kV and conforming to IS-335 of 1993 for filling/ topping up oil of transformer up to desired level complete all as directed.

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 specified and as directed by the Engineer-in-charge.

Supply & spreading in trenches sand cushioning to underground cable in trenches including spreading, levelling hand punning down complete all as specified and directed Note:- Depth of sand cushioning will be measured after punning down and levelling the sand properly.

M & L for broken stone/ boulders aggregate for loose filling, of gauge 80 mm to 150 mm graded complete all as specified and as directed.

S & F drop out fuse unit expulsion type for outdoor air brake gang operated switches single pole mounted and including insulator for 22 kV working pressure fixed to and including MS channel with nuts, bolts, washers etc. synthetic bounded fuse carrying tube complete with line taps and suitable for current carryout capacity 25 Amps.

S & F XLPE cable end termination, heat shrinkable, outdoor 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 for 6.35 kV/ 11 kV (Earthed) grade cable for straight through cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as 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., 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.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 100 kVA, 150 kVA, 200 kVA, 250kVA and 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., 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.

Disconnecting, taking down distribution transformer outdoor type 11 kV /415 volts having capacity 400 kVA, 500 kVA and 630 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.

M & L for rewinding of coils on primary 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.

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.

S & F in repairs ratio switch 5 position suitable for transformer of capacity 63 kVA to 200 kVA complete all as specified and as directed.

S & F in repairs ratio switch 5 position suitable for transformer of capacity 250 kVA to 500 kVA complete all as specified and as directed.

S & F in repairs 32 mm dia gunmetal drain valve of transformer as per existing one complete all as specified and as directed.

S & F in repairs 25 mm dia gunmetal drain valve of transformer as per existing one complete all as specified and as directed.

Dismantling air break gang operated switches vertical/horizontal mounted including insulators and operating mechanism for repair/ replacement of broken/worn out components and insulators etc. or carrying to MES store (spare/components for replacement to be provided free by department)

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.

S & F drop out fuse unit expulsion type for outdoor air brake gang operated switches single pole mounted and including insulator for 11 kV working pressure fixed to and including MS channel with nuts, bolts, washers etc. synthetic bounded fuse carrying tube complete with line taps and suitable for current carryout capacity 15 Amps.

Disconnecting, taking out old unserviceable under ground cable of rated voltage 11 kV, nominal cross sectional area of main conductor 95 sqmm, upto 4 core, any type from trenches including taking out concrete cable cover/ bricks etc. including removing materials to store for keeping in safe custody or for reuse or for taking credit (credit for above items should be made as per conditions separately) all as specified and directed by the Engineer-in-Charge.

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 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 complete all as specified and as directed.

S & F hot rolled medium and high tensile structural steel of grade E 250 quality C conforming to IS 2062: 2011 as in framed work as in doors or gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering, doors, etc. to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing complete all as specified and as directed.

S & F hot rolled low tensile structural steel of grade E165 as per IS 15911: 2010 as in hand rails, half round or other steel section or core for wooden hand-rail straight portion, drilled and countersunk for balusters running bars, for doors, balusters, nosing to steps including embedding in concrete and screwing etc. wind ties for roof including securing bolts; posts and struts in fencing including cutting tops to shape as directed, drilling holes, notching for wire, etc.; flat iron fillets (for securing wire mesh etc.) including all necessary drilling, bolting or riveting, etc., and similar works complete all as specified and as directed.

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, dimension 300 mm X 180 mm X 40 mm as per IS 5820: 1970 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.

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

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, glossy finish of approved colour, laid in required colour and pattern over 30 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge. Note- Rate of Sand filling shall be measured and paid separately.

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.

Fixing and stringing only ACSR (aluminium conductor galvanized 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.

Dismantling ACSR or AAC conductors from HT oh lines/structures and removing to store or taken on schedule of credit complete all as specified and as directed.

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

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.

M & L for cement concrete M10 (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 by Engineer- in-charge.

Dismantling steel 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.

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.

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 specified and as directed.

Clearing of vegetation/ creepers/ grass etc. from pole complete all as specified and as 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

Supply and fix female contact/fix contact jaw for gang operated air break switch

Supply and fix tinned copper flexible jumper for gang operated air break switch

Supply and fix mild steel jumper carrier for gang operated air break switch

Supply and fix back connector plate for gang operated air break switch

Supply & applying of petroleum jelly for gang operated switch break

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, 200 mm X 150 mm complete all as specified and as directed.

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.

Supply and fixing silica gel breather with all accessories filled with silica gel for transformer of capacity of 2500 KVA including removing of old breather complete all as specified and directed.

M & L for spray painting of transformers (any type power or distribution)) of capacity above 2100 kVA and upto and including 3000 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/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / quality all as directed at site. (c) Writing the SM MES No of transformer on MS body of transformer all as directed .

M & L for spray painting of transformers (any type power or distribution)) of capacity 100 to 630KVA ( 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/ polishing etc. complete. (b) Spray painting with two coats of synthetic enamel paint of approved make / quality all as directed at site. © Writing the SM MES No of transformer on MS body of transformer all as directed.

Dehydration and filtration of existing transformer oil of transformer at different location with filtration machine and heating system to get di-electric strength of oil 60 kV minimum without disturbing the power supply system including replacement of unserviceable silica gel and topping up /replacement of unserviceable transformer oil complete all as specified and as directed.( Note: Transformer oil for filling/topping up and silica gel shall be measured and paid separately under relevant items of this schedule).

Supply. Install, testing and commissioning lightning arrestor non linear resistor type complete with all fittings,Station class nominal discharge current 25 kA (Peak), 36 KV rated system voltage assy suitable for 33 KV, insulated on hot dip galvanised steel structure including all clamp. nuts complete as specified and as directed.

Material and labour for Repair / Overhauling / Servicing and testing of 33 KV site including removing incomming and outgoing cable connection, moving and fixed contacts, cleaning the parts with CTC, servicing the contactors, checking the VCB panel healthiness of fault tripping system by using secondary injection method and checking breaker closing coils, improving the insulation resistance and reassembling the same after replacement of unserviceable spare parts and making the VCB fully serviceable condition to the entire satisfaction of complete all as specified and directed. (Note: (i) Spare parts shall be measured and paid in relevant items. ii) testing including Primary injection, secondary injection, breaker trip time, calibration of relay

Material and labour for Repair / Overhauling / Servicing and testing of 11 KV site including removing incomming and outgoing cable connection, moving and fixed contacts, cleaning the parts with CTC, servicing the contactors, checking the VCB panel healthiness of fault tripping system by using secondary injection method and checking breaker closing coils, improving the insulation resistance and reassembling the same after replacement of unserviceable spare parts and making the VCB fully serviceable condition to the entire satisfaction of complete all as specified and directed. make- ABB, CG AND OTHERS (Note: (i) Spare parts shall be measured and paid in relevant items. ii) testing including Primary injection, secondary injection, breaker trip time, calibration of relay

Supply only spring charging motor for 11 kV VCB (400 Amp-800 Amp) of any Make

Supply only trip coil for 11 kV VCB (400 Amp-800 Amp) of any Make

Supply only trip & Close Coil 110 VDC. (Make: Crompton Greaves, Code: 599/SP1, 594/SP1) for incorporating in 11 kV indoor VCB vertical isolation

Supply only VCB operating mechanism (mention coil and motor voltage) for VCB 11 kV of capacity upto 650 Amps of any Make

Supply only HRC Fuses, 63 Amps suitable for, MEI make Oil Switch Fuse Unit, 11 KV, 400 Amp, in existing panel including hard ware and all as directed.

Supply & fitting epoxy resin cast CURRENT TRANSFORMER, 15VA, CL-5P10 suitable for 11000 Volts indoor type VCB complete all as specified and directed. RATIO OF CT TO BE DETERMINED BY CURRENT INJECTION TEST ON EXISTING CT BEFORE ORDERING AND TO RE-TESTED AFTER INSTALLTION

Supply only voltmeter digital type for 11 KV VCB panel of existing make.

Supply only digital Ammeter suitable for 11000 Volts VCB, complete all as specified and directed.

Supply only HT tape 12 KV grade FOR Busbaar insulation reychem or similar

Supply only vacuum Interrupter. (Make: Crompton Greaves) for incorporating in 11 kV indoor VCB vertical isolation

Supply only motor charging bearing suitable for 11000 Volts indoor type VCB complete all as specified and directed.

Supply only spring charging motor suitable for 33000 Volts indoor type VCB complete all as specified and directed.

Supply and fixing in replacement of 33 KV outdoor type CT OUTDOOR TYPE, VA-15, class-0.5, 5P 10 solid earth rated frequency 50 Hz system failure-25 KA for 3 sec complete all as specified and directed by engineer (a) Maximum allowable temperature rise 50 dgree centigrade (CT & PT). (b) Winding of material-Copper (CT ) note :- RATIO OF CT TO BE DETERMINED BY CURRENT INJECTION TEST ON EXISTION CT BEFORE ORDERING AND TO RETESTED AFTER INSTALLTION

Repairing and servicing of 110V flot boast battery charger along with necessary spares as reqd at 33KV subststion

supply & fixing of busbar support insulator for 11KV panel at 11KV substation as per sample as directed

supply & fixing of 11kv shroud insulator female type with copper fittings for 11KV panel at 11KV substation as per sample as directed

Supply and fix 11Kv breaker gear penion small for 11KV panel at 11KV substation complete all as specified and directed.

Supply and fix 11 Kv breaker gear penion big for 11KV panel at 11KV substation complete all as specified and directed.

Supply and fix 33Kv Isolator repairing including welding, servicing, and other works complete all as specified and directed.

Supply of 33kv isolator with handle and fixing part complete all as specified and directed.

S & F FRP disc type insulator, with suitable length,width and height complete assembly for tension with tension clamps for conductors, working pressure 33000 volts complete all as specified and as directed.

S & F FRP pin type insulator with suitable length,width and height complete including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150 mm height, 150 mm dia for 33000 volts grade complete all as specified and as directed.

Supply only master trip relay, 110 volts suitable for 11000 Volts indoor type VCB complete all as specified and directed.

M/s Mrinal Dowarah