ENHANCEMENT OF CMD OF HT-6 AND PROVISION OF SUBSTATION FOR 34 NOs SIMULATOR AT BLDG NO T-04, HMV WING (OLD EME WKSP) OF ASC CENTRE (NORTH) - 1 ATC UNDER GE (CENTRAL) BANGALORE

Amount

Supply & installation, testing and commissioning out door type, floor mounted step down transformer, 11KV/ 433 Volts ( At no load) AC 3 ph, 50 Hz, energy efficient level - 3, Amendment No.04,2021,confirming to IS 1180 of 2014 (ISI maked and BEE Approved), capacity 500 KVA ,copper winding,oil immersed, naturally cooled, oil natural- air -natural (ONAN), Class A insulation 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 natural brought out on secondary side (LV) and having tappings at +/- 2.5% to +/- 7.5% , 7positions, on HV side to be changed by means of hand operated off load tap changer gear. The maximum temprature rise should not exceed 40 degree C in oil and 45 degree C in HV /LV windings when measured by resistance method after countinuous full load run on an ambient temp of 50 degree C and shall also comprise of the following:-

(a) 01cable box chamber on HV side( primary) consisting of 03 Nos poreclin/epoxy bushing with copper rods complete with nuts and washers, with 01 No cable gland suitable for existing cable. (b) 01 box on LV side( secondary) consisting of 04 Nos epoxy bushing with copper rods complete with nuts and washers with cable glands.(c ) Oil conservator tank with filter type drain plug and oil level gauge. (d) Dehydrating brether with first fill of silica gel. (e) Explosive vent, thermameter pocket on tank cover, oil level guage, oil drain filter valve, lifting hucks, oil filling hole with cap/ plug with connection plate complete. Air release valve plug at four Nos plate soil cast steel detachable rollers. (f) 01 No 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree C with metal guard having maximum perimeter temperatre reading indicator with resetting device. (g) 02 Nos earthing terminals on tank cover to facilitate fixing of 50 x6 mm GI earth strip for earthing of body. Rating plate and terminal marking plate. (j) The transformer shall be complete with standard fittings incl plinth foundation for transformer mounting complete allas specified and directed by Engineer-in-charge. (h) Extra bushing for natural, in the LT cable box for providing independent set of earthing for natural.

(j) First fill of new and unused transformer oil, IS- 335 marked (make: savita / Power Oil) filtered and tested up to 60 KV die electric strength at 2.5 mm air gap between testing electrodes. (k) Providing adequate size and Numbers of channels, embedded in flour, for movement of transformers. (m) Provn for transformer fixing on trolley arrangement system (openable). (n) Provn of foundation to rest transformer all as per manufacturer instruction Note : Any left out standard accessories which are not mentioned above but required for smooth functioning of the transformer is deemed to be included in the quoted rate without any extra cost)

Excavation in post holes (or similar holes) each not exc 0.5cu. m, in soft / loose soil, getting out, returning,filling in and ramming earth or broken rubble mixed with earth around, in layers not exceeding 25 cm, watering and removing surplus soil to a distance n.exc 50m and making good surface complete all as specified & directed

M & L for Plain Cement Concrete (1:4:8) type D-2 using 40mm graded stone aggregate in foundation and mass concrete all as specified & directed

M & L for Pre-cast Cement concrete (1:3:6) type C-1 using 20 mm graded stone aggregates as in solid blocks masonary exceeding 10 cm in width and setting in cement mortar (1:6) all as specified and directed.

S & F Mild Steel angle iron work as in struts and posts in fencing including cutting tops to shape as directed, drilling holes notching for wire any flat iron fillets (for securing wire mesh and any wire type) including drilling,bolting or riverting and embedding in angle irion and screwing etc similar work confirming to Fe 410-0 or Fe 310-0 all as specified and directed.

S & F Mild Steel screw bolts(machine made) with hexgonal or square heads at ends and screwed end to be fitted with washers and one hexgonal or sqaure or square nuts not exc 10cm long and diameter of neck is 12mm complete all as specified as directed.

Supply only Chain link Mild steel Galvanised fencing Mesh of any type & size all as specified and directed

Fixing only chain link fencing including line wires any mesh,size and type straining bolts including provision of binding wire all as specified and directed

Supply and install H T 11 KV outdoor gang operated air-break switch Triple pole ,mechanically operated vertical mounted on insulator and steel frame with opearting mechanism worked from ground level rating up to 200 Amps including testing for smooth functioning complete all as specified and directed

Supply, fabricate and fixing of structural steel cross arms any size along with, brackets, clamps, bolts, nuts, washers, bracers etc including drilling holes, cold/hot complete and fixed to pole including applying two coats of synthetic enamel paint over a coat of red oxide primer complete all as specified and directed

M&L for Aluminium Conductor, Steel Reinforced conductor of any size including tightening and bindingh with new binding wires to insulators all as specified & directed.

M&L pin type, porcelain insulator, vitreous, white, brown, or green insulator includig one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut 150 mm height, 150 mm dia for 11000 volts grade all as specified & directed.

S&F Disc type insulator, porcelain, vitreous 145 mm high and 255 mm dia ball and socket type white, brown or green, single disc assembly for tension with tension clamps for conductors, working pressure 11000 Volts all as specified & directed.

M&L for Anti climbing device, spikes type fabricated out of MS bars (round/square/flat) including nuts,bolts, washers and welding in two halves made to shape to suit the cross section of the pole including dismantling old device all as specified & directed.

S&F danger notice plate for H T size 25x20 cm, made 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 MS clamps,bolts, nuts of approved size including dismantling old notice plate all as specified & directed.

S & F Expulsion fuse single phase above 50 & up to 100 AMPS capacity, 11000 Volts all as specified & directed.

S&F lightning arresters expulsion type complete with all fittings transmission class, discharge capacity 65 Kilo Amps suitable for 11000 Volts line all as specified & directed.

Supply, erecting and fixing steel tubular swaged pole (410 SP – 55), 11 mtr long, with cast iron base plate, pole cap / finial taper plug, bolts, nuts and washers, welded reduced section and longitudinal weld throughout entire length of pole, fix in in true vertical position, complete all as specified and directed

M & L for fabricate,supply, install, connect, test and commission LT feeder pillar box/panel board/out door type, min size 500x450x50mm, made out of CRCA sheet 3.15 mm thick with M S angle iron frame of 75x75x6 mm frame, 3 phase, 4 wire, 440 Volts, AC, 50 HZ with TPN bus bar of suitable 1200 Amps capacity with PVC insulated heat shrink colour code sleeves, mounted horizontaly with porcelain insulators, sufficient air vent provision for all the three sides, stickers / plastic plates for switch gear details, indicating lamps with toggle switches duly wired including ELR with CBET locking arrngement including suitable foundation and platform for mounting the panel with space for and including panel comprising of the following switch gears:- (a) ACB drawout type with thermal magaetic 4 pole 50KA,800Amps 415 Volts 50 Hz 01 (in coming) (b) Multi FUNCTION METER (LED Display) to read KWH, Amps,Volts and frequency etc of each phase (c) Indicator LED Type for RYB set of 3 - 01 set

Shiva Shakthi Electrical Enterprises (BID ID -3263667)