REPAIR AND MAINTENANCE TO TRANSFORMER AND ALLIED WORK UNDER AT MIL STN SRI GANGANAGAR

Amount

Disconnecting 25 KVA to 100 KVA HT & LT side cables of indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading, unloading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

Disconnecting 160 KVA to 315 KVA HT & LT side cables of indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading, unloading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

Disconnecting 400 KVA to 630 KVA HT & LT side cables of indoor/ outdoor transformer and earth strip from body and neutral of transformer mounted on two pole/four pole structure /staging and taking down the transformer manually/using mechanical means and lifting, loading, unloading and tranportation transformer from MES store yard/sub station/site to workshop for repairs and opening of covers, draining out existing transformer oil, lifting of core, cleaning of oil tank, using chemicals, cleaning of core after removing HT/LT windings, re-assembling of new HT/LT windings with core varnishing heating and bringing back the same after repairs to the same point complete all as specified and directed by Engr-in-Charge. Note : Rewinding of HT/LT coil any type/material, dehydration of transformer oil re-connecting after repair etc will be measured & paid separately under relevant items of this schedule.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 25 KVA to 100 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 160 KVA to 315 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for replacement of insulation material such as gasket(cork sheet for top cover), LT terminal box, LV & HV bushing washer, paper insulation for coil for 400 KVA to 630 KVA transformer complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 25 KVA to 100 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 160 KVA to 315 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

M&L for reconnecting 400 KVA to 630 KVA transformer after complete repairs including installation & testing the transformer as per relevant IS provisions incl connecting and showing to executive and signature in Job sheeet by Engr in charge complete all as specified and directed by Engr-in-Charge.

Supply and filling in replacement of fresh transformer oil confirming to IS 335 having di electric strength not less than 30 KV in existing transformers installed at different locations complete all as specified and directed by Engr-in-Charge.Make : Sheetal N-68/Power oil/Castrol with test certificate.

M & L for HT/LT coils, 11 KV, 440Volts fabricated out of new aluminium wire/strip of suitable gauge with proper insulation, varnish etc suitable for indoor/outdoor type transformer complete all as specified and directed by Engineer-in-Charge.

M & L for HT/LT coils 11 KV/440V fabricated out of new copper wire/strip of suitable gauge with proper insulation, varnish etc suitable for indoor/outdoor type transformer complete all as specified and directed by Engineer-in-Charge.

S & F in replacement 25 KVA to 630 KVA (11KV) transformer bushing of HT side with porcelain, brass rod, bolts, washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S & F in replacement 3.15 MVA/1.6 MVA (33KV) transformer bushing of HT side with porcelain, brass rod, bolts, washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 25 KVA to 100 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 160 KVA to 315 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 400 KVA to 630 KVA transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement suitable size and make Lugs for 25 KVA to 100 KVA transformer including removing spare loop of cable and reconnect and proper insulate for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement suitable size and make Lugs for 160 KVA to 630 KVA transformer including removing spare loop of cable and reconnect and proper insulate for transformer complete all as specified and directed by Engineer-in-Charge.

Supply only transformer oil BDV kit new 120 KVA MS Fully Automatic Transformer Oil BDV Test kit digital display 50 Hz frequency, input 230 volt portable type complete all as specified and directed by Engineer-in-Charge.

S&F in replacement suitable size and make Lugs for 400 KVA to 630 KVA transformer including removing spare loop of cable and reconnect and proper insulate for transformer complete all as specified and directed by Engineer-in-Charge.

S&F in replacement 3.15 MVA/1.6 MVA (33 KV) transformer bushing of LT side with porcelain, brass rod bolts washers and packing sheet suitable for transformer complete all as specified and directed by Engineer-in-Charge.

Dehydration and filtration of existing transformer oil with drain out all oil and cleaning of mud through high pressure flow oil pump using centrifugal plant to eliminate foreign particles and to improve di-electric strength not less than 40 KV in 25mm electrode gap and to bring the acidity within the permissible limit complete all as specified and directed by Engr-in-Charge.

M & L for preparation of existing painted external surface of transformer 25 KVA to 100 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

M & L for preparation of existing painted external surface of transformer 160 KVA to 315 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

M & L for preparation of existing painted external surface of transformer 400 KVA to 630 KVA capacities and applying two coats of synthetic enamel paint complete all as specified and directed by Engineer-in-Charge.

Taking out existing silica gel and providing new silica gel complete all as specified and directed by Engineer-in-Charge.

S&F in replacement of Air breather asembly with silica gel for transformer ranging from 25 KVA to 630KVA complete all as specified and directed by Engineer-in-Charge.

S & F in repair for GI strip 32x6 mm thick fixed in ducts/on wall/in trenches/floor etc and jointing for inter connection of earthing fixed to equipment, test point incl drilling holes and jointing with aluminium nuts, bolts and washers complete all as specified and directed by Engr-in-Charge.

S&F in replacement of transformer temperature gauge heavy duty 0-150 degre centigrade of size 96mm dial type for 100 KVA to 400 KVA transformer having brass sensor complete all as specified and directed by Engr-in-Charge.

Supply, Installation, Testing and Commissioning of Chemical Earthing based on 3 meters long 50 mm dia EC Grade 'K' Copper earth pipe as a electrode 50mm bore duly fixed with connector at top for connection of copper strip 32 x 6mm riveted/nut bolt after 12 mm boring. The Electrode is surrounded by mixture of Teksai Electron 22 kg 1 bag & Ultra 10 Kg 1 bag Chemical compund powder including providing of pit cover heavy duty plastic of suitable size all as per manufacturer specification complete all as specified and directed.. Make- Teksai 350 Cu Ltd/Power Track/Tirupati(Nagpur) Note: i) Rate included for Testing commissioning including checking of earth continuity and earth result complete all as specified and as directed. ii) Venders are bound to get earthing result less than 1 ohm. If the result of earthing not achieved less than 1 ohm by one earthing then another additional earthing will be provided by the contractor as bi-pot including interconnecting with copper strip of same configuration at no extra cost to achieve test result as specified and all as directed by Engr-in -charge. iii) Rates for copper earth strip of size 32x6 mm up to 7.5 RM will deemed to be included in quoted rates. Copper earth strip beyond 7.50 Mtr shall be measured and paid Separately under relavent items.

M&L Copper strip of size 32x6mm buried in ground and connected one end to electrode terminal and other end to terminal box with suitable size of GI nut, bolt & washers complete all as specified and directed.

Cutting/ trimming of tree branches not exc 10 cm girth touching/approaching the LT/HT overhead lines conductors with hack saw/axe to clear the LT/HT line upto 3 metre on each side including disposal of trimmed branches 100 Metre away inside the station area & clearing site complete all as specified & directed by Engr-in-Charge. Note:-3Mtr width on each side (Horizontal/vertical) of LT/HT line shall be cleared.

S&F in replacement lightning arrester expulsion type conforming to IS-3070 Part-II 1989 as amended upto date suitable for 11 KV earth system having discharged current rating 5 KA high current impulse with stand 65 KA for OH 11 KV line including bracket clamps nuts, washers and connecting to earth as specified and directed by Engineer-in-Charge.

M&L for GI clamp,GI Sheet , GI nut bolt, fabricated from structural steel sections including nuts, bolts, washers, welding , bending cold or hot, drilling holes for transformers HT/LT Side cover plate,bolts, in any shape or size all as directed by Engr in charge.

Supply and fixing in replacement of transformer temperature gauge heavy duty 0-150 degre centigrade of size 96mm dial type for 400 KVA to 630 KVA transformer having brass sensor complete all as specified and directed by Engr-in-Charge.

M&L for earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of earth plate at a depth not less than 1.5 metre below ground level, earth plate surrounded by 15cm thick packed layer of charcoal dust and common salt, connected to galvanized iron strip 32mm x 6mm thick as earth lead by means of bolts, nuts and washers of galvanised iron or steel and thimbles and other end of the earth strip connected to earthing test point/equipment and protected by galvanised iron pipe light grade 40mm dia upto earthing test point/equipment fixed with 2 Nos of mild steel clamp made out 25mm x 3mm flat iron and perforated water pipe 20mm dia GI medium grade and top with socket & plug and bottom connected to earth plate by slit and two bolts/nuts/washers, PCC chamber in cement concrete (1:2:4) type B-1 and CI cover with frame 40 x 40 x 6mm on top and excavation/ earth work complete all as shown in electrical plate No. 3 of MES Schedule Part-I of SSR-2009. Note:- (i) Outer edge of earth pit shall be 1 metre away from the outer edge of PCC chamber. (ii) GI strip upto earth test point/equipment is included in this item. (iii) Water pipe upto earth pit shall be provided in slantling position as included in this item.

M&L for Earthing complete with galvanised steel earth plate electrode 60 cm x 60 cm x 6mm thick burried directly in ground vertically to a depth not less than 2.25 metre below ground level with top edge of earth plate at a depth of not less than 1.5 metre below ground level, earth plate surrounded by 15cm thick and packed layer of charcoal dust and common salt, connected to earth lead of GI wire 4 mm dia (8 SWG) by means of bolts, nuts and washers of the earth wire galvanised iron or steel and thimbles and other end of the earth wire connected to earthing test point and protected by galvanised iron pipe light grade 15mm dia and water pipe 20mm dia GI light grade with funnel & wiremesh, PCC chamber in cement concrete (1:2:4) type B1 including CI cover with frame 40x40x6mm angle iron frame on top of pit cover and excavation & earth work complete all as shown in electrical plate No. 3 of MES Schedule Part-I of SSR-2009. complete all as specified and directed by Engr-in-charge. Notes :- (i) GI wire upto earth test point/equipment is included in this item. (ii) Outer edge of earth pit chamber shall be 1 metre away from the outer edge of PCC chamber. (iii) Water pipe upto earth pit shall be provided in slanting position as included in this item.

Cleaning of tree branches/grass not exc 10 cm girth srounding the 2 pole/ 4 pole structrue HT/LT over head lines conductors with hack saw/axe to clear the LT/HT line upto 2 metre on each side including disposal of trimmed branches/grass 100 Metre away inside the station area & clearing site all as specified and directed by Engr-in-Charge. Note :- 2 metre width on each of LT/HT pole structrue. to maintaining of cleare area by useing any type of pestisides are the responsibility of contractor. Clearing of Area is inspected by JE E/M .if found not cleared than pannality Rs 200/ per week .

M&L for graded gravel/coarse stone aggregate 20 to 40 mm spread and levelled in layers complete all as specified and directed by Engr-in-Charge.

M&L for painting of OH Line Channel where Transformers located, Steel tubular pole , Iron Gate, complete with two coats of synthetic enamel paint of superior quality after scraping, cleaning and preparation of old painted surfaces complete. Details of sub station items where to be painted are as under: (a) all type of iron items where paint required - 01 Nos (b) Gate and connected accessories - 01 Nos

Supply and filling of fresh transformer oil confirming to IS 335 having di electric strength not less than 30 KV for top up in existing transformers installed at different locations complete all as specified and directed by Engr-in-Charge.Make : Sheetal N-68/Power oil/Castrol with test certificate.

Supply, laying, jointing testing and commissioning in replacement of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade of cross-sectional area 120 Sqmm, 3 core, IS 7098 marked, suitable for HT 11 KV(E) system , laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed by Engineer-in-Charge.

Supply, laying, jointing testing and commissioning in replacement of XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable (heavy duty) with multistranded aluminum conductors, 11 KV grade of cross-sectional area 95 Sqmm, 3 core, IS 7098 marked, suitable for HT 11 KV(E) system , laid in trenches / ducts / encased in GI pipe / fixed to pole complete all as specified and directed by Engineer-in-Charge.

Excavation in trenches, not exc 1.5 m wide and n. exc 1.5 m depth; or n exc 10 Sqm on plan and n exc 1.5 m in depth for foundations of poles, struts, stays etc. or laying underground cable etc. in soft/loose soil, & getting out complete all as specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers n.exc 25cm thick complete all as specified and directed by Engineer-in-Charge

Removal of excavated surplus soil to a distance n.exc 50m and depositing where directed at level not exceeding 1.5 m above the starting point complete all as specified & directed by Engineer-in-charge .

M & L for sand cushioning with dry coarse sand to under ground cable below and around after laying the cable jently punning down complete all as specified and directed by Engineer-in-Charge. Note : Thickness after punning shall be considered for payment.

Supply and lay un reinforced pre cast concrete cable cover calss HV type 1 flat size 300 x 180 mm x 40mm all as specified and directed.

M & L for jointing and testing heat shrinkable, outdoor type, end termination cable jointing kit, suitable for 11KV under ground earthed system 3 core XLPE cable of size 50 to 95 Sqmm including making connections complete all as specified and directed by Engineer-in-Charge.

M & L for jointing and testing heat shrinkable outdoor type, end termination cable jointing kit , suitable for 11KV under ground earthed system 3 core XLPE cable of size 120 to 185 Sqmm including making connections complete all as specified and directed by Engineer-in-Charge.

M & L for jointing and testing heat shrinkable, Indoor type, end termination cable jointing kit, suitable for 11KV under ground earthed system 3 core XLPE cable of size 50 to 95 Sqmm including making connections complete all as specified and directed by Engineer-in-Charge.

M & L for jointing and testing heat shrinkable Indoor type, end termination cable jointing kit , suitable for 11KV under ground earthed system 3 core XLPE cable of size 120 to 185 Sqmm including making connections complete all as specified and directed by Engineer-in-Charge.

Disconnecting HT & LT side cables of Indoor / outdoor transformer of capacity 25 to 315 KVA plinth mounted / two pole/four pole structure mounted and opening the top cover and indentified the fault at site and repairing the same complete all as specified and directed by Engr-in-Charge. Note :Dehydration of transformer oil,replacement of any spare parts etc will be measured & paid separately under relevant items of this schedule.

Disconnecting HT & LT side cables of Indoor / outdoor transformer of capacity 400 to 630 KVA plinth mounted / two pole/four pole structure mounted and opening the top cover and indentified the fault at site and repairing the same complete all as specified and directed by Engr-in-Charge. Note :Dehydration of transformer oil,replacement of any spare parts etc will be measured & paid separately under relevant items of this schedule.

Note :(i) Amount of credit for retrieved materials is mentioned in Sch 'A' Section-II of tender documents in pdf form which will be deducted while acceptance of tender offline.

HARSH CONSTRUCTION CO.

Singla Electricals

Ganganagar Enterprises

HUMERS INFRATECH