REPAIR/ MAINT AT 11 KV SUB STATION AND DEHYDRATION/ OIL FILTRATION OF TRANSFORMER AND OTHER ALLIED WORKS AT GE DRONACHAL

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 Cement Concrete (1:4:8) type D-2 (40mm Graded Stone Aggregate) as Lean Concrete, Bed Concrete in Foundation of Poles, etc., including Formwork (as required), complete all as directed.

M&L for Cement Concrete (1:2:4) type B-1(20mm Graded Stone Aggregate) as in Coping of Poles, etc. including Formwork (as required), complete all as 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 all as per directed by Engr-in-charge.

Supply only Ceramic Bushing and Gasket on LT Side of Transformer 200KVA TO 500KVA 11000/433 complete all as specified and as directed.

Supply only Ceramic Bushing and Gasket on HT Side of Transformer 200KVA TO 500KVA 11000/433 complete all as specified and as directed.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60cmx 6.3mm thick buried direcly in ground vertically to a depth not less than 2.25 meters below normal ground level with the top edge of earth plate not less than 1.5 meters below ground level connected to galvanized iron strip 32 x 6 mm by means of bolts, nuts, check nuts and washers made out of galvanised iron or steel all as shown in electrical plate No.5 of SSR part I and earth wire protected by galvanized pipe light grade 25 mm bore and thorugh test point including necessary earth work and excavation in any type of strata, and repair to GI light grade 20mm bore watering pipe with funnel and wire mesh, PCC 1:2:4 type B1 chamber with 40mm thick RCC 1:2:4 type B1 design mix cover slab with 6mm kdia MS bars at 100mm c/c both ways with MS Hook 6mm dia MS bars etc complete all as specified and directed and testing on completion.

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.

Supply & Repalcement of synthetic Rubber insulated mats 3.0 mm thick for voltage upto 33 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m.

S&F of D. O. fuse element for 33 KV line, 40 A with fire resistant ferrule complete all as directed at size.

S&F of D. O. fuse barrel for 11 KV line, 40 A with fire resistant tube and joint with ferrule complete all as specifed.

M & L for painting of chain link fencing arround the substation and steel angle poles, with two coat of silver paint after cleaning/scrapping the surface throughly incl main gate complete, and writing on main gate with font and size as directed by Engr -in - Charge.

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 HT, 250 mm X 200 mm complete all as specified and as directed.

M/S J J ENTERPRISES (BID ID -3131740)

PRAGATI ELECTRICALS AND ELECTRONICS (BID ID -3131723)

RAJPATI CONSTRUCTION (BID ID -3119751)