PROVN OF 3 PHASE MAINS ALONGWITH 100 KVA TRANSFORMER AND SERVO VOLTAGE STABILIZER AT IRNC UDHAMPUR OF SUB GP UNDER GE (UTILITY) UDHAMPUR

Amount

Suppy, installing, connecting, commissioning and testing of energy effficient transformer (level 3 of IS 1180) of capacity 100 KVA outdoor type powder coated, step down 11/0.433 KV, core type oil immersed, copper wound, natural oil cooled with external cooling tubes, having 3 phase 50 Hz, AC supply, DYN-11 design, off load tap changer on HT side to vary secondary voltage ±7.5% in steps of 2.5% as per IS 1180 (Pt-I to III) with all standerd accessories including HT and LT bushing LT box on LT side, including inbuilt protection and first filling of transformer oil (of die electric strength not less than 50 KV) upto required level in conservator tank with cover boxes, dial type thermometer, rollers, stop taps, breather with silica gel, conservator tank, oil level indicator, etc, complete all as specified and as directed by Engr-in-Charge.

Note : - (i) The transformer oil shall be fresh and approval certificate from manufacturer shall be obtained by contractor and furnished to GE. the copper shall be 99.97% purity and approval certificate from manufaturer shall be obtained by contractor and furnished to GE. (ii) Pre -commisioning, inspection of transformer shall be carried out by rep of Accepting offr and T&P for the inspection shall be arrange by contractor, cost of the T&P etc for testing shall deemed to be included in the unit rate.

Supply and fix Indoor type unbalanced Servo Controlled Voltage stabilizer , Copper wound , for automatic operation , three phase , oil cooled , As per BIS 9815 : Part 1 & designed for input variation between 300 V to 480 V with output voltage stabilized at 415 with accuracy ±1 % , AC 3 Phase , 50 Hz , Response time Less than 10 mili second , Breakdown strength 2500 Ac for 2 minute , Insulation Resistance ( IR ) More than 100 Mega ohms at 500 V DC , Ambient Temperature : 0 - 55°C , Duty Cycle : Continuous , Metering : Digital Meter VA,Efficiency 98 % or more , with High low voltage cutoff , Over Voltage / under voltage Protection , Over load and short circuit Protection , Phase failure , Bypass arrangement system of capacity 100 KVA with first fill Transformer oil ( IS335 : 1993 reaffirmed 2005 ).

Supplying, laying, jointing and testing LT under ground cable 95 sqmm 3.5 core, heavy duty, XLPE insulated, screened, PVC bedded galvanised steel strip armoured, electric power cables with aluminium conductor, 1100 volts, laid in trenches/ducts or fixed to poles/walls or laid under roads/paths/drains/culverts complete all as specified and directed by Engr-in-Charge.

Description all as per srl item No 4 here-in-before but of size 50 Sqmm 3.5 core.

Description all as per srl item No 4 here-in-before but of size 16 Sqmm 4 core.

Supply, laying, commissioning and testing in replacement XLPE insulated screended PVC bedded galvanised steel strip or wire armoured electric power (Heay duty) with aluminium condutor 11000 volts (earthed) grade cross sectional area 95 sqmm 3 core cable in trenches, jointing with proper lugs, cable gland complete all as specified and directed by Engr-in-Charge.

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 70 to 120 sqmm complete, all as specified and directed by Engineer-in-Charge.

Supply and ererction in vertical position Steel tublar swaged poles erected truly vertical or planted as strut complete with 6 mm thick mild steel base plate, welded to pole, B-118 finial taper cap,bolts,nuts & screws, poles made out of ERW MS tubing conforming to IS 2713 Part-II. Type 410-SP-55 (11 m long) including drilling of holes of required size for fixing of cross arms, painting the exposed surfacs of pole with two coats of aluminium paint over a coat of two coats of zinc chrome primer and two coats of black bitumenous paint internally & portion embedded in concrete, making five black & white bands at lower portion of pole each 300 mm wide alternatley, and marking pole No. with black paint at suitable height complete all as specified and directed. Note :- Excavation and earth work, PCC in foundation steel clamps, MS Cross arms and bracing of angle iron etc., shall be measured and paid for separetely under relevant items.

Supply and Fix lightning arresters expulsion type complete with all fittings suitable for 11000 volts grade conforming to IS-3070 part-I, transmission class, discharge capacity 65 kilo amp, complete all as specified and as directed by Engr-in-Charge.

Air break gang operated switches 12 instulators type with drop out fuses assembly mounted on MS Channel with operating mechanism works from ground level suitable for 11000 volts, 200 Amps, including Gl pipe handle, clamps bolls, nuts, jumper wire connecting with stranded conductors with locking arrangement, complete all as specified and as directed by Engr-in-Charge.

Cross arms, bracings, supports, clamps and back plates fabricated from structural steel sections ( flat, angle, channel) including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint complete all as specified.

Earthing complete with galvanised steel earth plate electrode 60cmx60cmx6 mm thick buried directly in ground (earth pit not less than 2.25 mtr deep below normal ground level) with top edge of plate not less than 1.5 mtr below ground level connecting to galvanised iron earth strip 32 x 6mm by means of bolts,check nuts and washers and earth strip protected by provision of GI pipe light grade 40mm bore including provn of concrete pit in PCC (1:2:4) type B-1 using 20mm graded crushed stone aggregates with 40mm thick cover of RCC (1:2:4) reinforced with XPM (weight not less than 4 KG/Sqm) and frame of angle iron 25 X 25 X 3mm with lugs 2 Nos and with 6mm dia MS bar handle made to shape, GI medium grade 20mm bore pipe for watering perforated at bottom 1.75 mtr long placed on top edge plate, common salt and charcoal filling, connecting to test point with fixing arrangement, funnel, wire mesh and earth work in any type of soil,returning filling in and removal of surplus soil to a distance not exeeding 50 mtr, all as per electrical plate No 3 of SSR 2009 Part-I all as specified and testing on completion. Note :-(i)Cost of GI earth strip & protection pipe upto 7.5 mtr is deemed to be included in unit rate. (ii) On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6mm thick buried directly in ground, (Earth pit not less than 2.25 mtr deep below ground level) with top edge of plate not less than 1.5 mtr below normal ground level, connected to and including 4mm dia galvanized earth wire lead by means of bolts, nuts, check nuts and washers of galvanized standard iron or steel all as specified or indicated in electrical plate No 3 of MES Part-I, including testing on completion including the material and labour and taking out old unserviceable earthing of the following :- (a) Excavation and earth work for drilling hole for electrode in any type of soil. (b) PCC pit in cement concrete 1:2:4 type B-1. (c) Precast RCC cover with suitable handle 40 mm thick in PCC 1:2:4 type B-1, reinforced with welded steel wire fabric weighing not less than 1.87 Kg/Sqm. (d) Funnel with watering pipe of GI 20 mm nominal bore medium grade and copper lugs etc all as specified.

Srl item No 14 Contd … (e) 15 mm nominal bore light grade GI protection pipe 7.5 mtr long for protection of earthing lead from mechanical injury or tempering. (f) Requisite quantity of common salt and charcoal. (g) Testing of earthing. Note : On testing after completion of earthing, if the desired earth resistance is not obtained, the earthing will be re-done by the contractor at his own risk and cost to the entire satisfaction of the Engineer-in-Charge.

Supply, instailation, testing and commissioning of outdoor type, weather proof, cubicle panel board made out of 3.15 mm thick MS/CRCA steel sheet mounted on 60cm long legs made out of 50 x 50 x 6 mm equal angle,embedded in PCC 1:24 type B-1 blocks of size 15x15x20 cm,fornt and back openable, double door openable up to minimum 150 deg. & removable type having magnetic catche system, lockable / openable by keys from both sides having chromium plated locks, louvers and air vent gaskets for natural air flow suitable for 3 phase 4 wire 415 voilts 50 Hz, factory febricated with suitable foamed-in PU gasket to make it dust/vermin proof, IP 54 protection, powder coated and prewired as per standard engineering practice, the panel manufacturer should have got any one of the panel tested at CPRI earliest for short circuit current of 50 KA for one second and similar design and technology shall be adopted for fabrication of panel copy of CPRI test report shall be produced to GE along with a certificate from manufacturer of the panel that the similar design and standard have followed in these panels complete ,suitable cable glands for cable entry. The panel shall accomodate the following equiptments :-

Srl item No 17 Contd … Note :- (i) Various feeder shall be indicated by 50 mm high letter in white synethetic enamel paint. (ii) Cable gland shall be provided to accommodate 120Sqmm LT cable one No as incomer and outgoing cable 50 Sqmm (one run) & 16 Sqmm (1 run).

Material and Labour for construction of platform for transformer 2.5m (wide)x 2.5m (long) & 1.5m (height) including moorum filling, earth work in brickwork any type of soil, brick work in CM (1:6) and PCC at top 10 cm thick (1:2:4) type B-1 and foundation with 1:4:8 type D-2, 25cm thick all as per drawing including plastering to exposed walls and white wash, providing MS channel on top of size 75x40x8mm of 1.5m length for rolling to transformer, including chain link fencing of wire mesh 150x100 size made out 4mm dia GI wire of height 1.5m fixed with the help of MS strip 25x6mm on and including MS angle iron 75x45x6mm thick 12 Nos post by the means of drilling holes at the distance of 30cm and fixed with the help of suitable nut, bolt and washer, the length of MS angle iron not less than 2.25m top of post bend to the shape of 60 degree including 03 Nos cuts for inserting barbed wire including 03 run of barbed wire and including provision of gate of size 1.5mx0.9m made out of MS angle iron 50x50x6mm and MS bar 12mm dia for meshing to the gate and locking arrangement complete all necessary for work, complete all as specified and as shown on drawing No. CEUZ/TD/1516/15 sheet 1/1.

Plain cement concrete 1:3:6 type C-2 using 40mm graded crushed stone aggregates as in foundation, filling and mass concrete, complete all as specified and as directed by Engr-in-Charge.

Providing, cement concrete type B-1, 1:2:4 (using 20mm graded crushed stone aggregate) as in coping of poles, complete all as specified and as directed by Engr-in-Charge.

Supply and fixing of danger notice plate board of size 250 mm x 200mm for HT 11000 volts system made of 1.6 mm thick mild steel sheet , vitreous enamelled white , with letters, in english hindi or urdu and conventional skull and bones in signal red colour and fixed with MS clamps ,bolts,nuts of approved size, complete all as specified and as directed by Engr-in-Charge.

Excavation in trenches in any type of soil not exceeding 1.50 m wide and not exceeding 1.50 mtr in depth and getting out for pipe, cable pole, stay etc, all as specified and directed by engineer-in-Charge.

Description all as per Srl item No. 22 here in before but depth exceeding 1.5m but not exceeding 3m complete all as specified & directed by Engineer-in-charge.

Returning filling in (soil) including spreading leveling watering and well ramming in layers not exceeding 25cm thick, all as specified.

Removal of excavated material (soil) to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5m above the starting point all as specified.

S&F double walled corrugated (DWC) pipe of size 110 / 95 mm including snap fit coupler conforming to IS:14930 (Pt-II)/IS-16205 Pt-II for protection of HT cable in under ground complete all as specified & directed by Engineer-in-charge.

Description all as per srl item No 26 here-in-before but of size 90 / 76 mm.

Description all as per srl item No 26 here-in-before but of size 75 / 63 mm.

Description all as per srl item No 26 here-in-before but of size 50 / 38 mm.

M&L for tubing 'light grade'' 80mm bore galvanised iron with all fittings and fixed to poles, walls etc. With flat iron clamps/bolts/nuts/washers or laid in floors/under roads, complete all as specified and as directed by Engr-in-Charge.

M/S BHARAT LIGHT ELECRIC.CO

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PREM NATH KHAJURIA AND SONS

MOHAN LAL AND SONS

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