REPAIR MAINTENANCE OF DISTRIBUTION TRANSFORMER AND CONNECTED WORKS UNDER GE (U) BATHINDA AT BATHINDA MIL STN

Amount

S & F in replacement LT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 25 KVA to 160 KVA complete .

S & F in replacement LT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 200 KVA to 315 KVA complete.

S & F in replacement LT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 400 KVA to 630 KVA complete.

S & F in replacement LT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 750 KVA to 1000 KVA complete.

S & F in replacement HT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 25 KVA to 160 KVA complete.

S & F in replacement HT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 200 KVA to 315 KVA complete.

S & F in replacement HT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 400 KVA to 630 KVA complete.

S & F in replacement HT bush assembly brass complete with double check nuts, washers and oil seal all accessories with bushing insulators for transformer capacity 750 KVA to 1000 KVA complete.

Attending minor transformer complaints/ Preventive maint of Transformer by taking proper shutdown of HT feeder from concerning power house checking, testing and locating faults of HT side/LT side of transformer of any make / any capacity kept on four / two pole structure etc. Opening/ disconnecting HT electric connections removal of old jumpers by cutting of old rusted nuts, bolts & washers etc Replacement of unserviceable jumpers, tightening connections , checking load balancing etc including routine maintenance such as checking miner leakage of transformer silica jell , breather, oil level including replacement of LT /HT side bushing rod etc all as specified and directed by Engineer-in-Charge. Note :- (i) transformer oil / silica jel/ breather if replaced shall be measured and paid separately under appropriate item. (ii) The Supply only spare parts excluding minor parts will be measured and paid for under relevant items. T & P and minor repair i.e. replaced the nut/bolts etc. shall be arranged by the contractor and the cost deemed to be included in the quoted rates. During currency period of contract , contractor shall depute high skilled trades men for attending the complaint of transformer regularly as and when called within 24 hours & maintenance shall be carried out accordingly for smooth functioning of transformer and cost of the same shall deemed to be included in the quoted rate of this item. Please note that onetime payment shall be made to contractor for these items. If any faults / defects occurred , contractor shall rectify / replace the same without any extra cost in terms of condition 46 of IAFW-2249 of General condition of contracts under defect liability period.

Disconnecting HT/LT connections of burnt / defective copper / aluminum wound transformer of capacity varying from 25 KVA to 100 KVA, taking down from site of installation, opening up the top cover, draining out transformer oil from transformer in suitable containers (containers to be provided by the contractor ) inspection / assess the defective / burnt parts, core assembly of transformer in the presence of AGE / GE and prepare list and then shifting the transformer to trade / contractor's workshop for repair, cleaning and making good surface and rewinding the same with existing size of new copper / aluminum conductor, strip wound coils, limb for HT / LT , fixing of class 'E' insulation in core assembly etc. including internal cleaning, removing sludge, washing and painting with one coat of zinc chromate paint to inner side of the transformer body and one coat on outer side with synthetic enamel Grey paint (spray painting) after cleaning and removing oil spot from the body and re assembling, reinstalling, commissioning the transformer to its original place and testing at site on full load after connecting the HT / LT connections complete all as specified and directed by Engineer-in-Charge. Notes :- (i) HT/LT copper/aluminum coil, transformer oil and other required parts as mentioned here-in-after shall be measured and paid separately under appropriate item. (ii) The T & P/ vehicles and minor parts/nut bolts etc. will be arranged by the contractor and the cost of same shall be deemed to be included in the quoted rates. (iii) The rates quoted is deemed to be included in the unit rate for cutting/chipping of RCC/PCC/plastering of foundation/platform and minor grill work/welding work.

All as per srl item No. 10 above but capacity varying from 125 KVA to 200 KVA complete all as specified.

All as per srl item No. 10 above but capacity varying from 250 KVA to 315 KVA complete all as specified.

All as per srl item No. 10 above but capacity varying from 400 KVA to 500 KVA complete all as specified.

All as per srl item No. 10 above but capacity varying from 630 KVA to 1000 KVA complete all as specified.

Supply only new copper LT coils made out of proper size of Double Paper Covering copper wire/strip super enameled of high quality matching with existing impedances and providing class 'E' insulation suitable for transformer 25 KVA to 1000 KVA complete all as specified and directed by Engineer-in-Charge. Note :- The rate quoted is deemed to be included in the unit rate for varnishing, sleeving and insulating materials and the Contractors shall not have any claim on this account at a later stage.

Supply only new copper HT coils made out of proper size of Double Paper Covering copper wire/strip super enameled of high quality matching with existing impedances and providing class 'E' insulation suitable for transformer 25 KVA to 1000 KVA complete all as specified and directed by Engineer-in-Charge. Note:- The rate quoted is deemed to be included in the unit rate for varnishing, sleeving and insulating materials and the Contractors shall not have any claim on this account at a later stage. Note for item No. 15 & 16:- (i) The rate quoted is deemed to be included in the unit rate for varnishing, sleeving and insulating materials and the Contractors shall not have any claim on this account at a later stage (ii) Double paper covering for ordinary copper winding shall be confirming to IS 7404 (Pt-I) : 1991 and round Copper wire class 180 IS 13730 (Pt-8): 1996

Supply only new double paper covered aluminum strip/wire wound coils for LT winding of the transformer of capacity 25 KVA to 1000 KVA with suitable size/gauge so as to match with existing working capacity of the transformer and all as per manufactures design/specifications including providing class 'E' insulation complete all as specified and directed by Engineer-in-Charge.

Supply only new double paper covered aluminum strip/wire wound coils for HT winding of the transformer of capacity 25 KVA to 1000 KVA with suitable size/gauge so as to match with existing working capacity of the transformer and all as per manufactures design/specifications including providing class 'E' insulation complete all as specified and directed by Engineer-in-Charge. Note for item No. 17 & 18:-:- (i) The rate quoted is deemed to be included in the unit rate for varnishing, sleeving and insulating materials and the Contractors shall not have any claim on this account at a later stage. (ii) Double paper covering for ordinary Alminium winding shall be confirming to IS 6162 (Pt-II) : 1971 and round Aluminium wire IS :13730 (Pt-15) 1994

Material & Labour for CPRI tested INDIAN / INTERNATIONAL SANDARDS IS; 13573/1992/IEC; 60502/ CENELEC; HD 628.1 &629.1/ 1EEE;48/VDE;0278 Cold shrinkable end termination joint Outdoor type dielectric strength 15 KV/mm, tensile strngth 1x10E12 N/Sqmm, Elogation 300%, Volm Resist 1x10E11 Ohm.cm suitable for HT XLPE cable of size 95 sqmm 3 core to 120 Sqmm armoured 11000 volt grade heavy duty complete all as specified and directed by Engineer-in-Charge.

Material & Labour for CPRI tested INDIAN / INTERNATIONAL SANDARDS IS; 13573/1992/IEC; 60502/ CENELEC; HD 628.1 &629.1/ 1EEE;48/VDE;0278 Cold shrinkable end termination joint Outdoor type dielectric strength 15 KV/mm, tensile strngth 1x10E12 N/Sqmm, Elogation 300%, Volm Resist 1x10E11 Ohm.cm suitable for HT XLPE cable of size 185 sqmm 3 core armoured 11000 volt grade heavy duty complete all as specified and directed by Engineer-in-Charge.

Material & Labour for CPRI tested INDIAN / INTERNATIONAL SANDARDS IS; 13573/1992/IEC; 60502/ CENELEC; HD 628.1 &629.1/ 1EEE;48/VDE;0278 Cold shrinkable end termination joint Outdoor type dielectric strength 15 KV/mm, tensile strngth 1x10E12 N/Sqmm, Elogation 300%, Volm Resist 1x10E11 Ohm.cm suitable for HT XLPE cable of size 240 sqmm 3 core armoured 11000 volt grade heavy duty complete all as specified and directed by Engineer-in-Charge.

Disconnecting HT/LT connections of the pole mounted/plinth mounted outdoor type/indoor type transformer of capacity 25 KVA to 1000 KVA, opening up the top cover for checking the conditions to carryout repairs at site, including draining out oil from the transformer in suitable container (containers to be provided by the contractor) and the transformer repair with replacement of parts (as required), check the lead connection from winding to bus rods including necessary soldering/jointing etc. and after complete repair refilling the dehydrated oil and testing on full load after connecting the HT/LT connections complete all as specified and directed by Engineer-in-Charge. Notes :- (i) Major parts (as required) shall be measured and paid separately under appropriate item of this DCS (ii) Dehydrated transformer oil shall be measured and paid separately under appropriate item of this DCS (iii) The T & P and minor parts/nut bolts etc. shall be arranged by the contractor and the cost of the same shall deemed to be included in the quoted rates.

Taking out the unserviceable breather assembly complete from 100 KVA to 750 KVA transformer indoor/outdoor type and supply & fixing new breather assembly complete filled with fresh blue colored silica gel including connecting with proper rubberized gasket complete all as specified and directed by Engineer-in-Charge.

S & F new cork sheet gasket 6mm thick & 40mm width superior quality on top cover plate of the transformer capacity 25 KVA to 1000 KVA complete all as specified and directed by Engineer-in-Charge.

S & F new silica gel complete all as specified and directed .

S & F in replacement HT/LT side cable box, cover plate made out of MS sheet of 14 SWG complete with MS nuts, bolts and washer suitable for indoor/outdoor type transformer capacity 25 KVA to 160 KVA complete all as specified and directed by Engineer-in-Charge.

S & F in replacement HT/LT side cable box, cover plate made out of MS sheet of 14 SWG complete with MS nuts, bolts and washer suitable for indoor/outdoor type transformer capacity 200 KVA to 750 KVA complete all as specified and directed by Engineer-in-Charge.

Supplying and filling new mineral grade transformer oil EHV type confirming to IS-3357 of 1983 for filling and for topping up in transformer/OCB's duly filtered with filtration plant to obtain high dielectric strength not less than 60 KV (Gap 2.5mm) complete all as specified and directed by Engineer-in-Charge. Note:- Empty barrel will be property of Deptt and same will be taken on PM ledger charge.

Cleaning and preparation of old painted surface of transformer ( Exposed external surface only) installed at site of any installation in cantt area capacity 25 KVA to 160 KVA transformer installed on pole mounted , indoor / out door plinth mounted by using course cloth/wire brush and painting with one coat of synthetic enamel grey paint with the help of spray gun including writing the SM No/MES No. on transformer with white paint in the existing style/pattern complete all as specified and directed by Engineer-in-Charge.

All as per srl item No. 29 above but capacity of transformer from 200 KVA to 315 KVA complete all as specified.

All as per srl item No. 29 above but capacity of transformer from 400 KVA to 750 KVA complete all as specified.

Taking down transformer up to 500 KVA capacity from pole/site of installation of any description / any position and shifting to other site of installation distance up to 15 kilometer including fixing on 2/4 pole structure or on plinth and connecting with HT/LT side of existing system and testing complete all as specified and directed by Engineer-in-Charge. Note:- The T & P vehicles and minor parts/nut bolts etc. will be arranged by the contractor and the cost deemed to be included in the quoted rates.

Supply & fixing in replacement of HT feeder pillar box factor made cubical type dust proof, out door type both side opening of size 110 x 100 x 60 cm of MS sheet 3.15 mm thick power coated machine pressed front opening in two halves with rubber gasket / bedding , locking arrangement with sliding bolt including aluminium bus bar of size 50 x 10 mm and 80 cm long 3 strips mounted on HT insulators each strip should be mounted with minimum two insulators and nut bolt panel shall be mounted on angle iron frame and legs made from angle iron of size 50x 50 x 6 mm and legs 40 cm long duly spray painted internally and externally with two coat of synthetic enamel paint over a coat of red oxide primer and grouted in PCC 1:2:4 type ‘B-1’ using 20 mm graded stone aggregate complete incoming / outgoing cable provision.

S & F switch air break gang operated, triple pole, mechanically operated, mounted on insulator and steel frame with operating mechanism worked from ground level using heavy duty GI pipe, for current rating 200 Amps, outdoor type (conforming to IS specifications) HT 11 KV, triple pole with fixed contacts of phosphorous and bronze and a set of drop out HT fuse assembly, fuse carrier fitting, 12 insulator type mounted on MS channel operating rod with 7 lever pad lock arrangement complete along with D/O Fuse assembly with insulator and base frame. Including dismantling old unserviceable switch air break gang operated device.

All as per srl item No. 34 above but for current rating 400 Amps.

M & L for earthing complete with galvanized iron or steel earth plate electrode of size 60 cm x 60cm x 6.0mm thick buried directly in ground, vertically to a depth not less than 2.25 mtr below normal ground level with top edge of earth plate at depth of not less than 1.5 mtr below normal ground level surrounded from all sides with alternate layers of charcoal and common salt and connected to GI earth strip 32 x 6 mm thick by means of GI bolts, nuts washers & check nuts and soldering the strip, electrode connected to panel board or on poles or on transformer (including making of test point with GI strip of size 32 x 6 mm) including GI protection pipe 40 mm bore light grade dia for protection of strip upto the extent of 7.5 mtr all as directed, GI pipe light grade 20 mm bore for watering including providing funnel and wire mesh, GI frame with suitably reinforced RCC pit cover, PCC chamber pit with PCC (1:3:6) type C2 using 40 mm graded stone aggregates complete including excavation and earth work in any type of strata , all as specified and shown in electrical plate No 3 of SSR-2009 Part - I, PCC pit shall be provided at least 50 cm away from the earth pit and not just on earth pit including testing on completion and dismantling of old earthing. Note:- The rate quoted by the contractor shall be deemed to be included of earth strip 32x6mm and pit protection pipe 40mm dia light grade up to 7.5 mtr distance. Earth strip beyond 7.5 mtr will be measured and paid separately under relevant items.

M & L for earth continuity conductor or main earthing lead fixed to wall on batten or recessed or chases or buried in ground or drawn in conduit/ pipe for loop earthing etc. or any other indicated situation as required by using 32 x 6 mm GI strip complete.

Dehydration & filtration of transformer oil with portable filtration cum dehydration machine to improve the dielectric strength not less than 50 KV within 1 minute with 2.5 mm gap at site of any installation in cantt area and any capacity / make of transformer installed on pole mounted, indoor/out door plinth mounted. Testing of dielectric strength of dehydrated transformer oil of each transformer will be carried out in the presence of Engineer-in-Charge complete all as specified and directed by Engineer-in-Charge. Notes:- (i) Contractor shall ensure no wastage of transformer oil. (ii) Contractor shall ensure that the conservator tanks are full to its level before starting the dehydration.

M&L for servicing and greasing of mechanical parts of existing 11KV horizontal/vertical type GOD including replacement of parts i.e Male/female contact, jumper ,operating mechanism, GOD rod, bearing etc complete all as specified and directed by Engr-in charge. Note:-The cost of spare parts shall be deemed to be included in quoted rates and nothing extra should be paid on this account

Note:- The contract sum shall be calculated by deducting the amount shown in Credit Schedule attached to this tender from total amount of Schedule 'A'/BOQ

M/s Kataria Construction Company

M/s NIRMAN BUILDERS