81439 REPAIRS MAINTENANCE OF HT EXTERNAL SERVICES CALIBRATION OF RELAYS VCBs RMUs AND ALLIED WORKS TECH AREA AT INS KATTABOMMAN UNDER GE TIRUNELVELI

Amount

SCHEDULE 'A'

M & L for Expulsion type single pole DO fuse assembly 11000 volts, suitable for 200 Amps complete all as specified and directed.

M & L for switch air break , gang operated, Triple pole, mechanically operated, mounted on insulator and steel frame, with operating mechanism working from ground level, for current rating upto 200 amps , 11000 volts complete all as specified and directed .

M & L for Lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp, 11000 volts complete all as specified and directed.

M & L Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 sqmm complete all as specified and directed.

M & L Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 400 sqmm complete all as specified and directed.

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and directed

M & L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 400 sqmm complete all as specified and directed.

Supplying and laying reinforced precast concrete cable cover,but class HV, Type 1, flat, size 300mmx l80mm x 40mm complete all as specified and directed.

Supply and laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade 'E', cross sectional area 95 sq. mm, 3 Core complete all as specified and directed.

Supply and laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavyduty) with aluminium conductor, 11000 volts, grade 'E', cross sectional area 400 sq. mm, 3 Core complete all as specified and directed.

Dehydration and Filtration of transformer oil through online method of transformers of different capacities through stream line filter unit to increase di-electric strength (BDV) of transformer oil not less then 50 KV for 1 minute at 2.5 mm gap including topping up transformer oil to the required level as indicated to each transformer and testing, transformer oil before and after filtration submission of records of test in duplicate complete all as specified and directed. Note: Transformer oil for topping up will be measured and paid separately

M&L for Opening the top cover of the transformer and OLTC chamber of 2.5 MVA Distribution transformer carefully, decanning the transformer oil in drum removing the old worn out gasket and providing new gasket and replacing of defective fixed and movable contacts 8 sets of same size/thickness,repair of motor checking mechanism and associated item, replace if require and make functional including testing complete all as specified and directed.

S & F Transformer oil confirming to IS 335/93 grade suitable to topping up of transformers and OLTC tank through stream line filters, dehydrated after checking BDV complete all as specified and directed.

Material and Labour for replacing silica gel from air breather container clear view type of good quality, complete all as specified and directed.

M& L for synthetic insulation mat of 2.0 mX1.0 m, 2.5mm thick suitable for 11000 Volts Electric Supply as per IS 15652-2006 standard complete after removing the wornout rubber mat all as specified and directed.

S & F power pack unit with input voltage of 230VAC or 110 VAC single phase 50 Hz and output of 110V DC, 30Wsec (stored) and 110V DC, 75 W(Non stored) complete all as specified and directed.

M & L for painting the transformers with two coats of synthetic enamel paint of colour smoke gray including scraping and removing the old painted surfaces painting with two coats of supper enameled paint for 160 KVA, complete all as specified and as directed.

Excavation in trenches n.exc 1.5 M wide and n. exc 1.5 M depth and getting out in hard/dense soil complete all as specified and directed.

Returning, filling in incl spreading leveling, watering and well ramming in layers n.exc.25cm thick complete all as specified and directed.

Removing excavated material to a distance n.exc 50 M and depositing where directed at a level n.exc 1.5 M above the starting point complete all as specified and directed.

Supply and spread riddled earth in trenches for cable cushioning complete all as directed & as specified .

M & L for opening the cover of VCBs/Bus coupler 11 KV and servicing of fixed and moving contacts, repair and replacement of fixed copper terminal/contacts (male and female ),insulation tubes including other connected items to functional of panel board , lamp indicators ,meters tripping coil , caliberation of over load protection relay , time delay relay /earth fault relay etc . Clening the fixed and moving contact inside the VCBs properly , checking of spring charging mechanism, servicing and graesing all movable machanisum , replacement of defective fuses , wiring, spares and reassembling and testing and serviceability check from remote operation upto satisfaction complete all as specified and directed and manufacturer instruction.

Supply and fix Current transformer, cast resin type 150-75/5/5 A, suitable for existing 11 KV panel complete all as specified and directed.

Supply and fix Vacuum Interrupter of 11 KV suitable for indoor VCB as per sample Complete all as specified and as directed.

Supply and fix HRC fuse link suitable for 11 KV grade PT of indoor VCB upto 3.15 Amps as per sample complete all as specified and as directed.

M&L for laying and levelling stone aggregate loose filling using 40 mm graded stone aggregate around the transformer yards after removing the existing debries and stacking the existing aggregate complete all as specified and directed.

Material and labour for servicing/ testing/caliberation of LT 440 Volts relays ensuring of breaker tripping through relay by simulation CDG CDD complete of ACBs of capacity 4000/3200/1600/800 Amps complete all as specified and directed.

sri manikandan enterprises (BID ID -3333015)

VVM CONSTRUCTIONS (BID ID -3333134)