DEHYDRATION/OIL FILTRATION OF DISTRIBUTION TRANSFORMER AND REPAIR/ MAINTENANCE OF SEWAGE WELL AND SEWAGE MOTORS AT DRONACHAL BHOPAL

Amount

Strip opening of step down transformer of capacity 100 to 200 KVA, indoor /outdoor type of any make after unscrewing nuts & bolts, screws and connected, dismantling carefully connected acesories and removing primary and secondary terminals, top cover, conservator tank, temp gauge,breather,neutral earth strips and draining out transformer oil to the required level and storing carefully in cleaned containers ( to be arranged by contractor) etc. for replacement of defective parts such as replacement of leaking gaskets, replacement of worn out/burnt out studs, checking and cleaning of contacts of tap changer and re-assembling the transformer after replacing the defective parts/repair complete all as specified and directed by Eng-in-Charge

Notes : (i) Payment of defective parts to be replaced shall be measured and paid for separately under respective item of this schedule. (ii) The cost for replacement of packing material such as 5 mm thick rubberised cork sheet top gasket, insulator’s gasket shall deem to be included in the unit rate quoted by the contractor against this item (iii) The repair/strip opening of transformers shall be carried out at site of its installation without taking down/removal of transformer from the site of installation.

All as per item No 1.00 & 1.01 here in before but transformer of capacity 250 KVA and up to 750 KVA complete all as specified and directed

Filtration/Dehydration of transformer oil of transformers installed at Dronachal Campus Sub station to achieve die electric strength 60 KV at 2.5 mm gap gap as per relevant IS with portable filtration plant, testing of the oil for die electric strength, break down voltage before filtration and after filtration complete all as specified and directed by Eng-in-Charge. (MRS Sub Station) Note : (All types of T&P required for filtration of transformer oil to be provided by the contractor).

Supply and topping up fresh transformer oil for die electric strength of 40 KVA at 4 mm gap conforming to IS -335/1993 in the conservator tank/body tank of the transformer at various locations of Dronachal campus sub station complete all as directed Note :New oil shall be supplied in factory sealed container only.Make of oil Savita/ power oil/ Indian Oil

Taking out old unserviceable defective bushings from transformers and Supply and fix porcelain HT bushing with brass studs, nuts and washers connecting to winding, testing and commissioning of transformer 100 KVA to 750 KVA capacity complete all as directed .

Taking out old unserviceable defective LT bushings from transformers and Supply and fix porcelain bushing with brass studs, nuts and washers connecting to winding, testing and commissioning of transformer 100 KVA to 750 KVA capacity complete all as directed .

Taking out old unserviceable drain cocks from the transformers and Supply and fix new gun metal gate valve of following size bore along with brass/ gun metal dummy cap with rubbber washers as required at site complete all as directed

Supply and replace in repair pressure release valve suitable for transformer of size upto 750 KVA installed in Dronachal sub station complete all as specified and directed

Supply and replace silica gel into the breather of transformers complete all as specified and directed

Supply and replace 32mm x 6 mm GI strip as in earth continuity conductor fixed to wall or pole or recess or cheses or burried in ground or drawn in conduit pipe or any other indicated situation for loop earthing etc as required all as directed

M & L for preparation of old painted surfaces of distribution transformers of capacity 100 KVA to 160 KVA including removing oilly and greasy spots and applying one coats of synthetic enamel paint including white wash to transformer foundation plinth and lettering with white paint as MES NO/SM No, capacity, year of installation, serial No and Make etc over coat on black paint complete all as specified and directed.

All as per item No 11.00 here in before but transformer of capacity exceeding 200 KVA but not exceeding 750KVA complete all as specified and directed.

Taking down unserviceable PG clamp of any type & size and supply and fix PG clamp of suitable size of 33/11 KV substation including electrical connection complete all as directed by Engr-in-charge

M&L for cable jointing kit for 11000 V (earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium conductor cable of size 50 to 95 Sqmm complete all as specified and directed.

M&L for cable jointing kit for 11000 V (earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium conductor cable of size 120 to 185 Sqmm complete all as specified and directed.

M&L for cable jointing kit for 11000 V (earthed) grade cable for outdoor termination cold shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium conductor cable of size 240 to 300 Sqmm complete all as specified and directed.

Supply and laying of terminal box made of SA 40405 angle iron and 2mm thick MS sheet including removable cover with required holes on flange to fix at body of transformer and removable cover and fixing with new cork sheet gasket with nuts bolts and washers including one coat of synthetic enamel paint as under coat and one as finishing coast to both side of box complete all as specifiea d and directed.

M&L for plain cement concrete 1:3:6 type C-2 using 40mm graded stone aggregate in foundtion of pole/stay assembly ,mass concrete.etc including necessary form work , all as specified and directed.

M&L for preparation of old painted surfaces ,removing dust and other deposited materials by scraping from tubular pole of 9/11 Mtr long, two pole stracture , painting of pole with two coat of aluminium paint including cross arms cable protection pipe clamps etc complete all as specified and directed by Engr-in-Charge.

M&L for preparation of old painted surfaces ,removing dust and other deposited materials by scraping from tubular pole of 9/11 Mtr long, painting of pole with two coar of aluminium paint including cross arms cable protection pipe clamps etc complete all as specified and directed by Engr-in-Charge.

Repair /Servicing of GOD (Gang Operating Device) including gresing/lubricating of all movable parts with checking and replacement move contract blade , jaw type female contract , nuts, bolts and washers, PG clamp etc complete all as specified and directed by Eng-in-Charge

M&L for spray painting with one coat of synethetic enamel paint for outdoor/indoor panel board outer & innner side with two coat of lime wash on plinth of panel board including connected accessories in any size and welded hingeg , locking arragement complete all as specified and directed by Engineer-in-charge

Trimming/Cuting of bushes and grass of Substations/MES Installations and surrounding of Panel board feeder piller boxes at various location and dumping/staging 50 mtr from existing point complete all as specified and directed by Eng-in-Charge

Supply, spreading and levelling 40 mm size graded crushed coarse aggregate around transformer plinth/four pole and two pole structures including earth treatement complete all as specified and directed by Eng-in-Charge

Supply and spread of lime (chuna) powder for the two pole structures/33 KV main receiving station yard complete all as specified and directed by Eng-in-Charge

Material and labour for two coat white wash on wall/ plinth for transformer of different substation all as specified and directed.

Taking down unserviceable cable lux from panel/Transformer of any size and supply and fix existing size aluminium cable lux (25 Sqmm to 200 Sqmm ) including electrical connection and testing complete all as directed by Engr-in-charge.

S & F PVC conductor sleeves (R,Y,B) of suitable size from Over head line to transformer including electrical connection complete all as per directed by Engr-in-charge.

M&L for 60 cm long angle iron 25x25x3 mm thick including suitable clamps and nut, bolts & waser fixed on pole with one primer coat and one aluminium coat paint complete

M&L Chemical earthing as per "ASHLOK" make model T-39, copper coated safe earthing electrode (SEE) of 3 mtr lenght with inner pipe of 40 mm dia and outer pipe of 80 mm dia with min 80-100 micron coating, filled with black fill compound mixed with soil and high specific gravity crystallin conductive mixture (CCM) of grade `B`filled inside the earth electrode.including drilling of hole of 150 mm dia bore with boring machine up to 20 mtrs depth in hard rock and filling the bore hole with black cotton soil up to 17 mtrs level i,e below the electrode bottom level , including PCC earth pit and Copper earth strip of 32 x 6mm with GI tubing light grade for protection up to 7.5 mtrs complete all as specified and directed by Engineer-in-charge.

Servicing of following capacity Non clogging sewage submersible pump AC, three/single phase by dismantling,removing elect connection, taking out from sewage well, greasing of bearing, cleaing of slot by opening cover, replacement of all minor parts required to be replaced, making alignment of motor and pump assy, and after servicing carryout Re-installation at its original position by their own arrangement including making connection and testing complete all as specified and directed by Engr-in-charge.

S & F Submersible cable 3 core multi stranded copper conducter of size 10 sq mm all as specified and directed by Engr-in-charge.

Supply & fixing MCCB, 440 volt AC, 50 Hz, 4 pole, rupturing capacity 16 KA of capacity 100 Amps.

Supply & fixing MCCB, 440 volt AC, 50 Hz, 4 pole, rupturing capacity 16 KA of capacity 63 Amps.

Supply & fixing MCCB 4 Pole, 415 V, Adjustable type, 400 Amps with breaking capacity 36 KA.

M&L for repair/maint of LT panels including hinzes,painting,door lock,busbar,nut bolt,cable glands,volt meter amp meter,etc all as directed by Engr-in-Charge.

S & F in repair star delta starter suitable upto 15 HP submerssible pump set ,415 Volts, 50 Hz, 3 Phase including relay, contactor ,no volt coil,on-off switch,indicators (R Y B) and electrical wiring all as specified and directed.

S & F in repair star delta starter suitable upto 50 HP submerssible pump set ,415 Volts, 50 Hz, 3 Phase including relay, contactor ,no volt coil,on-off switch,indicators (R Y B) and electrical wiring all as specified and directed.

S & F in repair star delta starter suitable for 60 HP submerssible pump set ,415 Volts, 50 Hz, 3 Phase including relay, contactor ,no volt coil,on-off switch,indicators (R Y B) and electrical wiring all as specified and directed.

Supply & fixing MCCB, suitable for rotary handle 440 volt AC, 50 Hz, 3 pole, rupturing capacity 35 KA of capacity 160 Amps.

Supply & fixing MCCB, 440 volt AC, 50 Hz, 4 pole, rupturing capacity 16 KA of capacity 125 Amps

Supply and replace XLPE insulated armoured heavy duty electric cable with aluminium conductor 1100 Volts grade laid in trenches/floor or fixed on wall/pole including brass compression cable gland, terminal lug etc complete all as specified of 70 SQMM 3.5 Core.

Desludging sewage sump well at certain places of 10 mtr internal dia and depth exc 5 mtr but not exc 10 mtr, by mechanical method only. Disposal of sludge or foreign material etc. And sludge or foreign material through out from Dronachal station by own tansport to distance of not exceeding 15 KM from the sewage pump house incl necessary loading and unloding complete all as specified and directed by Eng-in-Charge Note:- The contractor is responsible for all safety of men employed by him durying work at site.

Supply and fixing CI non raising type sluice valve with drilled flanged ends, stainless steel spindle with gun metal working parts with hand wheel, pressure type PN 1.6, including disconnection and removing the unsv sluice valves from the existing pipe line/ valve chamber for the size of 150 mm dia.

M&L for rewinding of non clog sewage submersible pump motors by removing old unserviceable copper winding clearing of slots and rewinding of motor with same gauge and No of turn of copper coil as per existing/ obtained from old winding and assembling including replacement of bearing, minor parts likes nut/bolt/washer/gasket/bushes bearing , mechanical/oil seal , necessary welding etc complete all as specified and directed.

Material and labour for valve chamber 1200 x 1200 x 1500 mm (internal ) with brick masonary valve chamber, PCC foundation, plastering and necessary excavation and earth work in hard/ dense soil, MS sheet cover 3.15 mm thickness along with angle iron frame of size 40 x 40 x 6mm with locking arrangement with necessary fixing materials like hinges, nut/bolts etc (valve chamber cover shall be opened in two halves) and painting to MS cover with one coat of red oxide and two coats of synthetic enamel paint etc all as specified.

Disconnecting the unsv Non clogging sewage submersible pump AC, three/single phase upto 60 HP from any sewage well in Dronachal campus including disconnecting incoming and outgoing LT cables, earth load GI strip etc, complete and loading on transportation vehicle with crane and manpower. Transporting back to work site (Original site) from Workshop after rewinding complete, lifting from transport vehicle with crane and manpower, installing at existing sewaage well including connecting electrically and testing complete .

Supply and replace silica gel breather assy complete suitable for transformer of capacity 100 KVA to 750 KVA complete all as specified and directed by Engr-in-chrg

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