REPAIR AND MAINTENANCE OF HT OH/UG LINE, TRANSFORMER, VCB, HT CABLES AND CERTAIN WORK UNDER GE (ARMY) DHAR ROAD UDHAMPUR

Amount

Disconnecting defective outdoor/indoor transformers of capacity upto 500 KVA from HT/LT side, taking out complete transformer oil, storing the same in suitable container (to be arranged by the contractor) opening the top cover and lifting the core assembly by means of tripod and chain pulley block carefully to check its condition, refilling the transformer oil after complete dehydration/filtration if required (to be paid separately) and necessary repairs re-fixing complete core assembly fixing the top cover and complete core assembly fixing the top cover and re-installation complete all as specified and directed. and necessary repairs re-fixing complete core assembly fixing the top cover and complete core assembly fixing the top cover and re-installation complete all as specified and directed.

Note:- (a) Pole mounted transformer lowering and taking down the same from two/four pole structure to ground carefully and rate will be considered in the quoted rate. (b) In case of major repairs/replacement in transformer which cannot be under taken at site the transformer shall be shifted at civil workshop and the cost shall be paid separately under relevant items. (c) Cost of dehydration/filtration and other necessary repairs shall be measured and paid separately under relevant item. Contractor shall bring the mechanic at site for first inspection of the transformer after that transformer shall be shifted at workshop complete all as directed by Engr-in-Charge.

Transporting transformer for repair to civil workshop, and any type of T&P will be required for shifting of transformer will be provided by contractor and strip opening of transformer and removing the top cover for repair, and taking out the burnt out core alongwith HT/LT coil (windings) assembling the core after replacement of HT/LT coils heating varnishing, testing oil and connection with existing electrical system HT/LT and commissioning complete on load of capacity not exceeding 200 KVA (Transformer oil will be measured and paid separately)

do---- as per item No 2 but 250 KVA to 500 KVA transformer

M&L for rewinding with supper enameled double paper covered copper wire for HV (11/0.433KV) winding having existing size and giving proper insulation and de-moisturizing before assembling the winding core and including primary testing, ratio testing, no load testing, core insulation testing and setting connection of tape changer including taking out unserviceable winding wire complete all as specified and as directed.

M&L for rewinding with supper enameled double paper covered copper strip for LV (11/0.433KV) winding having existing size and giving proper insulation and de-moisturizing before assembling the winding core and including primary testing, ratio testing, no load testing, core insulation testing and setting connection of tape changer including taking out unserviceable winding wire complete all as specified and as directed.

Shifting of transformer upto 100 KVA between Dhar Road Garrison and Jindrah 15 FAD and back by transportation in safe custody incl loading and unloading from foundation complete all as specified and directed Note :- Rate for hiring of cranes are deemed to be included rate under

Shifting of transformer 150 KVA to 500 between Dhar Road Garrison and Jindrah 15 FAD and back by transportation in safe custody incl loading and unloading from foundation complete all as specified and directed Note :- Rate for hiring of cranes are deemed to be included rate under

Shifting of transformer upto 100 KVA between Dhar Road Garrison and Samnabanj/RC Peal and back by transportation in safe custody incl loading and unloading from foundation complete all as specified and directed Note :- Rate for hiring of cranes are deemed to be included rate under

De-hydration/ filtration of transformer oil by hiring on line filtration plant to achieve di-electric strength not less than minimum 50 KV at 2.5 mm air gap including following work services :- (a) Removal of all suspended particles such as dust, rust, scales, collided carbon oxidation sludge etc upto < 1 micron. (b) De-hydration of transformer oil under vaccum. (c) Circulation of heated oil and filling of treated oil in transformer tank. (d) Top up the transformer oil upto the level NOTE : (i) Contractor shall use the vehicle mounted filtration plant with new suitable size heavy duty hose pipe. (ii) The transformer oil required for replacing/top up shall be measured and paid separately. (iii) Conducting field testing of di-electric strength of the transformer oil before and after filteration. (iv) Checking and testing of transformer oil not less than 50 KV.

M&L for Filling / topping of new transformer oil having dielectric strength not less than 60 KV complete including centrifuging of oil (if required) up to getting dielectric strength not less than 60 KV all as specified and directed by the Engineer-in-Charge

Supply and filling in existing breather by new silica gel of superior quality for air breather of transformer complete all as specified and as directed.

Supply and fixing of breather assembly of Transformer incl silica gel upto 250 KVA transformer as per existing make and type 500 Gm complete all as specified and as directed.

Supply and fixing of breather assembly of Transformer incl silica gel 315 KVA to 500 KVA transformer as per existing make and type 1 Kg complete all as specified and as directed.

Supply and fixing brass terminal stud 12 mm with nuts, check nut, oil seal and washer for HV side of transformer up to 100 KVA transformer complete all as specified and as directed.

Supply and fixing brass terminal stud 16 mm with nuts, check nut, oil seal and washer for HV side of transformer 150 KVA to 250 KVA transformer complete all as specified and as directed.

Supply and fixing brass terminal stud 20 mm with nuts, check nut, oil seal and washer for HV side of transformer 315 KVA to 500 KVA transformer complete all as specified and as directed.

Supply and fixing brass terminal stud with nuts, check nut, oil seal and washer for LV side of transformer of any make (as per sample) up to 100 KVA transformer complete all as specified and as directed.

Supply and fixing brass terminal stud with nuts, check nut, oil seal and washer for LV side of transformer of any make (as per sample)150 KVA to 250 KVA transformer complete all as specified and as directed.

Supply and fixing brass terminal stud with nuts, check nut, oil seal and washer for LV side of transformer of any make (as per sample) from 315 KVA to 500 KVA transformer complete all as specified and as directed.

Supply and fixing bushing of HV side as per existing size/Model of the capacity up to 250 KVA transformer complete all as specified and as directed.

Supply and fixing bushing of HV side as per existing size/Model of the capacity 300 KVA to 500 KVA transformer complete all as specified and as directed.

Supply and fixing bushing of LV side as per existing size/Model of the capacity up to 250 KVA transformer complete all as specified and as directed.

Supply and fixing bushing of LV side as per existing size/Model of the capacity 300 KVA to 500 KVA transformer complete all as specified and as directed.

M&L for painting of transformers capacity up to 100 KVA including HV/LV connection box with one coat of synthetic enamel paint by using spray painting method including cleaning and scrubbing of existing surface of all dirt and greasy materials alongwith marking of SM/MES Nos by synthetic enamelled paint with sticker letters n. exc 2 cm height at appropriate places complete after isolating the transformer from the electric supply and to be earthed all as specified and as directed.

M&L for painting of transformers capacity 150 to 250 KVA including HV/LV connection box with one coat of synthetic enamel paint by using spray painting method including cleaning and scrubbing of existing surface of all dirt and greasy materials alongwith marking of SM/MES Nos by synthetic enamelled paint with sticker letters n. exc 2 cm height at appropriate places complete after isolating the transformer from the electric supply and to be earthed all as specified and as directed.

M&L for painting of transformers capacity 315 to 500 KVA including HV/LV connection box with one coat of synthetic enamel paint by using spray painting method including cleaning and scrubbing of existing surface of all dirt and greasy materials alongwith marking of SM/MES Nos by synthetic enamelled paint with sticker letters n. exc 2 cm height at appropriate places complete after isolating the transformer from the electric supply and to be earthed all as specified and as directed.

M&L for earthing with galvanized steel earth plate electrode 600 x 600 x 6.0 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 metre below normal ground level connected to galvanized iron wire 4 mm dia (8 SWG) as earthing lead protected by GI pipe Medium grade 15 mm bore for protection of GI earth wire and 20 mm dia GI pipe light grade for watering with alternate layers of charcoal /coke and salt including all accessories like nut, bolts, reducer, nipple, wire meshed/screened funnel and making brick masonry finished chamber of internal size 300 mm x 300 mm x 300 mm with concrete base, covered with PCC cover which shall be embedded in the block masonry including excavation works, refilling, connected to main Switch/GOD/LA/Poles etc for feeding the electric supply to domestic quarters compete all as specified as shown in electricall plateNo. 3 of SSR Part-I and testing of earth resistance as required.

M&L for earthing with galvanized steel earth plate electrode 600 x 600 x 6.0 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 metre below normal ground level connected to galvanized iron wire 32x6 as earthing lead protected by GI pipe light grade 50mm bore for protection of GI earth strip and 20 mm dia GI pipe Medium grade for watering with alternate layers of charcoal /coke and salt including all accessories like nut, bolts, reducer, nipple, wire meshed/screened funnel and making brick masonry finished chamber of internal size 300 mm x 300 mm x 300 mm with concrete base, covered with PCC cover which shall be embedded in the block masonry including excavation works, refilling, connected to main Switch/GOD/LA/4 Poles structure etc for feeding the electric supply to domestic quarters compete all as specified as shown in electricall plateNo. 3 of SSR Part-I and testing of earth resistance as required.

S&F Galvanised iron strip 32 x 6 mm for extension of earth and connected to equipment or panel complete all as specified and as directed .

PCC (1:2:4) type B-1 using 20mm graded aggregate as in coping of reconstruction old damaged copings etc, including necessary form work complete all as specified and directed

Material and labour for painting to surfaces of any description, new or prevoiusly untreated surface,with two coats of aluminium paint over a coat of red oxide primer complete all as specified and directed

Supply and laying 63 mm nominal size Graded coarse aggregate and aggregate shall be measured net, in compact stacks,prepared on level ground all as specifed and directed

Inspection ,Preventive maintenance, repair and testing of 11 KV VCB/OCB Panel with breaker as under :- (a) Cleaning of all chambers in panel like breaker , Bus bar, Spout etc by CRC. (b) Tightness, cleaning of all hardwares in all chambers (c) Greasing of all mechanical interlocks and breaker mechanism, movable parts. (d) Applying Jelly in isolating contact, spout connections , (e) Rack in - Rack out operation and setting. (f) Setting of wheel assembly of breakers. (g) ON/OFF & Snatch gap setting. (g) Tripping test in overload and earth fault position by external current injecting Kit on both primary & secondary sides (h) Meggar testing between phase to phase and phase to earth in ON / OFF position both Note:- Inspection , maint, repair and testing of VCB/OCV rates are included in the same item. Small nut,bolt, washer, wiring adjustment and minor parts to be inculded in the above quoted rate Spare parts for VCB to be measured and paid separately . Make of existing VCB/OCBs are CG, Areva, ABB, Schenider, seimens,L&T etc Note:- Testing report will be submitted by contractor after calibration of VCBs/OCBs.

SUPPLY and FIXING OF SPARES FOR HT VCB/OCB. Existing make of VCB/OCBs are CG, Areva, ABB, Schenider, seimens,L&T etc

(A) INDICATIONS

(i) Indication lamp LED-(RED/Green/Amber/White/Clear/Blue)

(B) CIRCUIT BREAKER COIL/PLUG & SOCKET/HANDLE

(i) Close coil 24/30V DC

(ii) Shunt trip coil 24/30V DC

(iii) Series trip coil 24/30V DC

(C ) ACCESSORIES

(i) Spacer Heater as per existing cap and type

(ii) Thermostate 30-90 Deg all as per existing cap and type.

(iii) NO/NC Contacts All as per existing capacity and type.

(iv) Master trip relay All as per existing capacity and type.

(v) Motor and gear assy 220V AC/DC all as per existing capacity and type.

(vi) Auxiliary switch 7NO + 7NC all as per existing capacity and type.

Supply, installation, testing and commissioning in replacement of 11KV Current Transformer with Indoor & Resin cast type single pole (Three core type) CTR-125/5+5A, STR - 18.4kA/1Sec, Class - 15VA/CL1.0+15VA/5P10 fixing on existing 11 KV panel including necessary connections, any modification required, addition/alteration required for fixing CT in existing 11 KV panel complete all as directed by Engineer-in-Charge.

Supply, installation, testing and commissioning in replacement of 11KV Current Transformer with Indoor & Resin cast type single pole (Three core type) CTR-100/5+5A, STR - 18.4kA/1Sec, Class - 15VA/CL1.0+15VA/5P10 fixing on existing 11 KV panel including necessary connections, any modification required, addition/alteration required for fixing CT in existing 11 KV panel complete all as directed by Engineer-in-Charge.

Supply and fixing in replacement of unsv protective/IDMT/digital relay (CG make for earth fault and over current relay) design to show power, alarm, trip and fault shown on the screen or equivalent as per existing make and type including removing of old UNSV relay and making connection of new relay including necessary calibration to match with the present system including testing all as specified and directed by Engr-in-Charge.

Calibration of digital/IDMT protective relays of HT panel (OCB/VCB's) as per load pattern, by preparing data sheet of existing electric load from each sub stations, re-programming input data into relays (OCHS, EFHS, OCLS, EFLS, CTR, TDS etc) complete testing by injecting current in CT primary and measure secondary current at 11 KV, control and relay panel for metering, protection relay plug settings intended in service through current injection in CT primary and ratio including complete polarity test complete all as specified and directed. Note :- Calibration shall be performed by either rep of OEM or qualified engineers.

S&F of auxiliary power supply/ battery bank complete with maintenance free lead acid battery bank mounted on MS rack and provide with connector etc complete in all respect with install capacity 36 Volts DC 18Nos each of 2 Volts 100AH including booster battery charger 12/24/36/48 volt all as per standard specification complete with DC Amps Meter Volt meter, switches ON/OFF, TRICKEL/BOOSTER complete all as specified and directed by Engr-in-Charge incl taking out old unserviceable .

Excavation in trenches not exc 1.5 Mtr wide and not exc 1.5 Mtr in depth and getting out in soft/loose soil complete all as specified and as directed.

Returning, filling in including spreading, levelling, watering & well ramming in layers not execeeding 25 cm thick complete all as specified and as directed.

Removing excavated soil/demolished material not exceeding 50 Mtrs from the starting point all as directed.

M&L for dry sand for cushioning for laying cable in trenches all as directed by Engineer-in-Charge Note:-Punned thikness shall be consided for measurment.

S & L bricks burnt for protection of cable sub class B bricks laid dry flat across the cable with length of whole brick complete.

Supply and laying in trenches GI pipe light grade with fitting of size 100 mm bore for protection of cable complete all as specified and as directed

Taking out defective/unserviceable HT cable 11 KV off sizes 95 /120/150 Sqmm 3 core from duct/wall/floor/ trenches required at site all as specified and directed by Engineer-in-Charge.

Supply & laying HT XLPE Insulated screened aluminium stranded conductor cable PVC bedded galvanized strip armoured heavy duty 11 KV cross sectional area 95 Sqmm 3 Core conforming to IS 7098 lead in duct/trenches complete all as specified and directed

M&L in replacement of straight through heat shrinkable joint for HT 11 KV XLPE cable 95 Sqmm 3 Core complete including testing all as specified and directed by Engineer-in-Charge

M&L in replacement of straight through heat shrinkable joint for HT 11 KV XLPE cable 120 Sqmm 3 Core complete including testing all as specified and directed by Engineer-in-Charge

M&L in replacement of end termination heat shrinkable out door type kit complete with jointing material and accessories for HT 11 KV 95 Sqmm 3 core cable including testing all as specified and directed by Engineer-in-Charge

M&L in replacement of end termination heat shrinkable In door type kit complete with jointing material and accessories for HT 11 KV 95 Sqmm 3 core cable including testing all as specified and directed by Engineer-in-Charge

Dismantling of old unserviceable air break switch 11 KV any type all as specified

Supply & Fixing of HT 11 KV out door type Isolator air break switch triple pole manually operated ,off load , including GI pipe, handle,connecting rod, male female copper connector , insulators and all connecting materials suitable for horizontal /vertical mounting fixed type complete rating upto 200 amps complete all as specified and directed

Routine and periodical work required for trimming / cutting of tree branches of any girth, touching /obstructing the over head lines of HT poles of three phase distribution system at places not more than 40 mtr span distance so as to keep minimum 2.0 mtr clearance all around the lines and poles with due care after taking proper electric shoutdown from concern MES competent staff complete disposal thereof ( trimmed branches) to a distance not exceeding 100 metre complete all as specified and directed.

M&L for preparing scraping the old painted surfaces and applying two coat of aluminium paint on steel tubular swaged poles 9/11 mtrs Long HT steel, chanels/angles including making/pasting three nos cricular strips of 300 mm wide yellow & black colour with synthetic reflected enamel paint and marking /stencil writing of pole numbers with black paint complete and all as specified and directed.

Taking down old unserviceable lightening arrestor 11 KV

S&F of lightning arrestor, Gapless Metal Oxide type, distribution class, System voltage-11KV, Discharge cap-65 KA, Line discharge class-1 complete with bracket and connection complete all as specified and directed.

Dismantling and taking down old/unsv cross arms, bracing, supports etc complete all as specified and directed.

S&F cross arms bracings supports clamps and back plates 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 inclusive of one primer coat, one under coat and one finishing coat of aluminium paints complte all as specified and directed.

Dismantling and taking down old/unsv ACSR conductor any size complete all as specified and directed.

S/F ACSR conductor incl jointing with existing conductor and straining on HT pole and proper fastening to pin/disc insulators with aluminium binding wires and required jumpering connection all as dercted. Note :- Size of aluminium conductor as per site requirement will be directed by Engineer-in-Charge.

Dismantling and taking down old/unsv insulator of any type any size from pole/stay complete all as specified and directed.

S&F Loop type insulator, porcelian vitreous brown of size 65x90mm and clearence hole 16mm all as specified and directed.

S&F Disc type insulator porcelain, vitrous 145mm high and 255 mm dia ball and socket type white, brown or green single disc with tension clamp for conductor for working pressure voltage 11000 V complete all as specified.

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

M/L for Stay assy using 16mm dia galvanised rod complete all as shown in electrical plate No 1 of SSR Part I incl dismentling unsv one all as specified and directed. (Clamps, loop insulator, earth work, PCC measured separately)

S/F for stay wire using galvanised steel strand of 7/3.15mm complete with necessary binding incl dismentling taking down unserviceable one all as specified and directed

Dismantling Old unsv anti clambing device barbed wire

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

Dismentaling notice plate HT size

S &F danger notice plate of 1.6mm thick mild steel sheet, vitreous enamelled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size, for LT, 25x20cm size

M&L in replacement of end termination heat shrinkable out door type kit complete with jointing material and accessories for HT 11 KV 120 Sqmm 3 core cable including testing all as specified and directed by Engineer-in-Charge

Supply & Fixing of HT 11 KV out door type Isolator air break switch triple pole manually operated ,off load , including GI pipe, handle,connecting rod, male female copper connector , insulators and all connecting materials suitable for horizontal /vertical mounting fixed type complete rating upto 400 amps complete all as specified and directed.

Supply and fixing as in repair bus bar insulator for 11 KV, VCB bus bar all as per existing size and type. All as specified and directed by EIC.

Supply and fixing as in repair of Small charging grear of for 11 KV, HT VCB of CG, Areva, ABB, Schenider, seimens,L&T or all as per existing size and type. All as spd and directed by EIC.

Supply and fixing as in repair of Big charging grear of for 11 KV, HT VCB of CG, Areva, ABB, Schenider, seimens,L&T or all as per existing size and type. All as spd and directed by EIC.

Supply and fixing as in repair of Rack in out grear of for 11 KV, HT VCB of CG, Areva, ABB, Schenider, seimens,L&T or all as per existing size and type. All as spd and directed by EIC.

Supply and fixing as in repair vaccum interpetor set (stud/non stud type) for 11 KV, VCB, as per existing size and type. The material to be synchronoised with the present system. All as spd and directed by EIC.

Supply and fixing as in repair of Jaw contact for 11 KV, HT VCB of CG, Areva, ABB, Schenider, seimens,L&T or all as per existing size and type. All as spd and directed by EIC.

Supply and fixing as in repair of Trip Neutral and close switch for 11 KV, HT VCB of Kayee, CG, Areva, ABB, Schenider, seimens,L&T or all as per existing size and type. All as spd and directed by EIC.

Removing/dismantling Old UNSV pole and Supplying, transporting, erecting and fixing up steel tubular swaged pole overall height 11 mtrs type 410 SP 55 complete with MS base plate pole cap finial taper plag bolt nut washer etc including painting with two coats of Aluminum paint over one coat of red oxide primer including 3 No bent /strips with post office red/yellow colour ( 300 mm wide each) synthetic enamel paint at a distance 300 mm from plinth block and marking pole No with black synthetic enameled paint including tarring one coat on steel surface emmbedded in concrete complete all as specific and directed.

M & L for PCC 1:4:8 type D-2 using 40 mm graded aggregate for fondations of poles etc.,

M&L for PCC 1:3:6 type C1 using 20mm graded stone aggregate for coping for poles including necessary form work to exposed surface finished smooth and even all of specified.

Excavation in trenches exc 1.5 Mtr wide and exc 1.5 Mtr in depth and getting out in Hard and Dense soil complete all as specified and as directed.

Supply, installation, testing and commissioning of as in repair potential transformer 11 KV rated voltage and the ratio 11000/110 Volts grade, 3 Phase, 50 Hz, V.F 1.2 Cont 1.5 for 30 Sec, VA/Class LV I equals 100/0.5 LV II and connecting up complete to the metering protection system of HT VCB 11KV all as specified and directed including taking down old UNSV PT Note:- The New PT should be match with the existing VCB

LUXMI ELECTRONIC WORKS

K S BUILDERS