SPL REPAIRS/ REPLACEMENT OF TRANSFORMER FORM 63 KVA TO 250 KVA FOR TECH AREA AT 1 (I) RO FLT UNDER GE RANCHI

Amount

Taking down old existing transformer by arranging shut down, disconnecting electrical connection LT and HT side both carefully and shifting to AGE E/M Store at LPH.

Site clearance by dismantling old damaged existing pcc platform by applying power drill, breaking in pieces and removing debris outside defence land as directed.

Supply, installation, testing and commissioning Outdoor type, step down transformer of 250 KVA capacity, 11/0.433KV , AC 3 phase, 50 HZ, double copper wound type core, oil immersed, naturally cooled, oil natural Air Natural(ONAN) with external cooling tubes delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group Dyn-11 with neutral brought out on secondary side (LV) and having tappings at (-) 2.5% to 7.5% @ 2.5% on HV side to changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when measured by resistance method after cotinuous full load run on an ambient temp of 40 degree celsius in oil as prevalling at site.The transformer shall be complete with the fittings and accessories comprising of items as mentioned here as under: Make : Crompton Schneider Indian Transformer & Electrical Pvt Ltd (Brand-ITE Gurgaon. Note : The transformer shall be complete with all fittings and accesories comprising of item as mentioned here as under. (a) LT side (secondary side) consisting four Nos porcelain bushing with copper/brass studs, complete with nut & washers complete with copper bus connectors of suitable capacity/fittings material complete. (b) HT side (primary side) consisting three Nos porcelain bushing with copper/brass studs, complete with nut & washers complete with HT bushing suitable for outdoor mounting of transformer complete. (c) Oil conservator with filter type drain valve and oil level gauge.strength at 2.5 mm air gap between testing electrodes. (d) Dehydrating breather with first fill of dehydrating agent (silica gel) (e) Explosive vent & thermometer pocket on tank cover oil level gauge oil drain filter valve lifting lugs oil filling hole with cap/plug with connection plate complete air release valve plug and four nos plain solid cast steel detachable rollers. (f) One no 100 mm dia , dial type thermometer vapor pressure type having range 0-120 degree celcius with metal guard having maximum perimeter temperature reading indicator with resetting device. (g) Two earthing terminals on transformer body to facitilate for fixing of 50 x 6 mm galvanised iron earth strip for earthing of neutral and body. (h) Rating and diagram plate and terminal marking plate. (j) Rates includes extra bushing for neutral on LT side for providing independent set of earthing for neutral 2 Nos. (k) First filling of new and unused transformer oil , IS 335 marked filtered and tested upto 60 KV dielectric Note :- Any other items which are not mentioned above but are essential for smooth functioning of transformer shall also deemed to be included in the quoted rates.

M&L block masonary transformer platform of size 2.0 mtr x 2.0 mtr with height 1.4 mtr above and 0.60 Mtr below GL consisting of cement concrete in foundation of PCC 1:4:8 Type D-2 using 40 mm graded stone aggregate, PCC block masonary 1:3:6 in CM (1:4), moorum filling and consolidating inside the block masonery work, 100 mm thick sub base concrete with PCC 1:3:6 and 100 mm thick top PCC 1:2:4 type B-2 & 15 mm plaster on side walls in 1:4 CM incl two coats of white wash and providing 2 Nos supporting channel of ISMC 100 of 2.0 Mtr long made of Fe 410 -W (Gde- E- 250) quality- A, complete all as specified and as directed. (Suitable for 250KVA Transformers)

M& L GI tubing medium grade of size 100 mm dia fixed on walls /plateform of transformer as protection pipe for ground cable including provisioning of specials and clamps etc including taking down of old unseviceable pipe any type and any size complete all as speified and directed.Note - Excavation to be paid separately in respective items.

M& L GI tubing light grade of size 50 mm dia fixed on walls / laid in trenches as protection pipe for under ground cable including provisioning of specials and clamps etc including taking down of old unseviceable pipe any type and any size complete all as speified and directed.Note - Excavation to be paid separately in respective items.

Supply only the chain link fencing MS galvanised fencing of size 50x50 mm thickness not less than 3.00 mm complete all as specified and directed

Fixing only the Chain link fencing on MS picket post including line wires,any mesh, size and type to any type of standards, straining bolts,etc including provision of winding wire complete all as specified and directed

Supply and fixing angle iron made of mild steel confiriming to Fe 410-W (Gde-E 250) quality 'A' of size 50x50x6 mm as in post and stuts in fencing incl cutting top to shape as directed,and flat iron of size 50x6 mm drilling of holes as drected for chain link fencing to angle all as per directed.rate including dismanting to the old PCC fence post complete all as specified. Note - (i) Rates are including required Nut bolts with washers any type any sizes for fixing of chain lik fencing. (ii) PCC for post of picket shall be paid separatelly in respective items.

Material and labour Plain cement concrete 1:4:8 type D-2 using 40 mm graded stone aggregate in foundation, complete all as specified and as directed.

Material and labour for Plain cement concrete 1:2:4 type B-1 using 20 mm graded stone aggregate in foundation, plinth courses, string courses, lacing courses, parapets with fair surface complete all as specified.

M&L for Precast cement concrete 1:3:6 hollow block type using 16 mm graded aggregate (as per IS 383) masonry exc. 10 cm in width and setting in mortar complete with straight or curved on plan built in 1:6 cement mortor specified and directed.

M&L for 15 mm thick rendering/plastering on fair faces of bricks surfaces or concrete surface in CM 1:4 complete and directed.

Supply only the Mild steel round bar 10 mm dia and over conforming Fe 410 - A for fixing to chain link fencing.

M&L for painting with two coat of synthetic enemelled paints over a coat of red oxide including perparation of new steel surface and chain link fencing complete all as specified.Note - Colour of paint will be approved by Engineer in Charge.

Excavation in trenches, not exc 1.5 mtr wide and not exc 1.5 mtr in depth for laying of pipe line in soft / loose soil and getting out in soft / loose soil complete all as specified

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/loose soil all as specified & directed

Removing excavated material to a distance n.exc 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point all as specified & directed.

M & L for Steel tubular swaged poles complete with cast iron base plate, finial taper plug, bolts, nuts & screws as specified type 410 SP-31 (9 metres long).including two coats aluminium of painting and numbering of poles with one coat red oxide primer including taking down old unserviceable pole all as specified and directed by EIC.

M& L Spreading ribbed soil in trenches as in cable cushioning all as per IS 1255-1983 and as directed. Note :- Excavated approved soil shall be ribbed by using sieve to separate composite particles etc as per IS and refiiling in trenches before laying of cable 8 CM and 15 CM after laying of cable. This is than gently punned down to a depth of 10 cm above the top of upper most cable (ii) For the purpose of measurement only punned thickness only will be considered for payment.

M&L laying bricks 'B' class over a cable (Width wise) old dried complete all as specified and directed.

Supply, laying, testing and commissioning in replacement of HT XLPE cable , insulated, screended, PVC bedded, galvanised steel strip or wire armoured, electic power cable (heavy duty) with staranded aluminium conductor, conforming to IS : 7098 (Part II), 11 KV "E" grade, cross sectional area laid in pipe/ducts/ trenches/ under floor/ under road all as specified of 95 sqmm 3 core including taking down old unserviceable cable all as specified and directed by EIC.

Supply and fix in replacement of drop out fuse unit expulsion type for outdoor air break gang operated switch, single pole, mounted on polymer based insulators for 11 KV working pressure, fixed to and including MS channel with nuts, bolts, washers etc, synthetic bounded fuse carrying tube complete with line taps and suitable for current carrying capacity upto 25-50Amps and connected with suitable size of ACSR conductor as jumper between GOD and DO fuse, with 11 KV HT PVC sleeve, with all fittings/accessories for current rating 200 Amps ,including taking down of only 3 fuses complete all as specified and as directed by Engr-in-charge.

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

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 95 Sqmm 3.5 core

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 50 Sqmm 3.5 core

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 35 Sqmm 4 core

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 25 Sqmm 4 core

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 16 Sqmm 4 core

Supply and lay cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armored, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size 10 Sqmm 4 core

Supplying & fixing of terminal panel box of size 155 mm x 210 mm x 92mm of outdoor pole mounted front operated cubical type Box as per IEC 60439-1 (IS:8623) & IEC 60439 -2 dead back, free standing, dust and vermin proof, switchboard with IP 66 protection with suitable for use 440 volts, 3 phase 4 wire 50 Hz system. The Board/Panel shall be made out of moduler POLYCARBONATE THERMOPLASTIC ENCLOSURES. The gasket material shall be Polyurethane; while the gasket shall be internally embedded. . The manufacturer of board/panel shall submit a copy of test report in accordance with IEC 60529. The Panel Should be assembled at manufactures factory (Make for terminal panel Box - Hensel/hager/Sintex and Panel box having 1x 6 Amp MCB (Make -Indo Asian(optipro /Havells/Legrand), 16 Sq.mm Terminal Block (04 Nos) , 6 Sq.mm Disconnected Terminal (01 No) ,4 Sq.mm Earth Terminal (01 No) including MS clamp flat 20 mm x3 mm in suitable fixed to pole with nut bolts complete.

M& L for Rigid non-metallic PVC conduit exclusive of boxes (junction/terminal) but inclusive of all tees, bends, elbows, reducers, bell mouth tube ends and fixing accessories such as couplers, lock nuts, saddles, pipe hooks etc. to be fixed on pole with all fittings including mouth pieces for passing of sub main wiring three core of copper wire 2.5 sqmm to provide woth conduit and connection to LED light and control box complete all as directed.

M&L in repairs Cable PVC insulated PVC unsheathed un-armoured copper conductor (multi stranded) of cross sectional area 1.5 sq mm 3 core drawing in PVC conduit/Steel tubular pole all as required for connections to light fittings complete all as specified and as directed.

Material and labour for cutting of metallic road/ hard standing/hard rock/wall up to a size not exceeding 20cm width and not exceeding 60cm in depth for laying of protection pipe for cable including making good the disturbed road/hard standing by providing PCC (1:2:4) type B1, 40 mm grade crushed stone aggregate upto existing surface level or removing the any type of tiles carefully and refixing properly as per existing surface including suitable size of GI pipe (if necessary) complete all as specified and as directed by Engineer-in-charge.Note: 1. If damaged/broken the any type of tiles while removing, the contractor shall replace the broken tiles with new one.2. The Quoted rate is included for all materials/T&P/Machinery used in this item, no material can paid/measured separately.3. All the removable tiles/re fixable material shall kept carefully at a safe place for refixing with in this quoted rate.4. GI Pipe shall measured and paid separately under relevant item.

Earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick burried directly in ground vertically to a depth not less than 2.25 mtr below ground level with top edge of plate not less than 1.5 m below ground level connected to and including galvanised earth strip of size 25x4 mm (up or 7.5 mtr length) and GI pipe 40 mm light grade for protection of GI earth strip by means of bolts, nuts, checknuts and washers made out of galvanised iron and connected to earth test point as shown in electrical plate No. 3 of SSR Part-1-2009 and as specified or indicated and testing on completion including excavation and earth work any in type of strata available at site, PCC (1:3:6) type C-1 for earth chamber, precast RCC slab 50 mm thick in cement concrete (1:2:4) type B-1 reinforced with welded steel wire fabric (xpm) weight not less the (4kg/sqm) funnel with GI watering pipe of 20mm bore medium grade, wire nuts and lugs complete all as speified and directed by Engr-in-charge.

Supply and fix lightning arrestor expulsion type HT 11 KV 10 KA complete with all fittings station class, complete all as specified and directed by EIC.

Supply,installation and erection in true vertical or to be planted as strut steel tubular swaged welded two pole structure complete with MS base plate of 6mm thick of size 300mmx300mm at bottom duly welded and MS pole cap at top,poles made out of ERW MS tubing confirming to IS1161 part-II, type 410 SP -31(9.0m long) including drilling of holes of required size and nos for fixing of cross arms/clamps, painting with one coat of red oxide primer and two coats of aluminum paint for expose surface and two coats of black bituminous paint for portion embedded in concrete, painting three black/white bands at lower portion of pole each of 300mm height at 300mm spacing, painting pole no. with black paint at suitable height complete all as specified and directed.

Supply and fix HT 11 KV, out door type gang operated air-break switch suitable for horizontal or vertical mounting fixed type complete with 9 insulators of rating upto 200 Amps.

MONA GENERATOR SEVICES PVT. LTD. (BID ID -3186537)

M/S Akash Enterprises (BID ID -3186164)

THE SUVASH AND SONS (BID ID -3184362)