Tender For Provn Of Electricity With Transformer For Washing And Dry Cleaning Plant Under Ge 874 Ews, Job No Ii/Revenue/Zangli/2024-25; 1 Supply, installing, testing and commissioning outdoor type, step down transformer, 11 KV/433 VE7:E14 Volts, (at full load) AC 3 Phase 50 HZ, 100 KVA capacity core type, double copper wound, oil immersed, naturally cooled, oil natural (ON AN) with external coolig tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYN-11 with netural brought out on secondary side (LV) in and having taping at + 2.5% & +5% on HV side to be charged by means of hands operated off load tap changer gear. The maximum temperature rise shall not exceed 45 degree celsius in oil and 55 degree celsius in HV/LV winding when mesurement by resistence method after continuous full load run on an ambinet temp of 40 degree celsius. The transformer shall be per confirmed IS : 1180 and be provided with suitable overhead Galvalum sheeted roof for rain protection complete all as specified and as directed by Engr-in-Charge. The transformer shall beIS : 1180 (Part-I) : 2014 with maximum total loses as per energy efficiency level 2 of IS : 1180 (Part-I) : 2014 and shall comprise of the following: - (a) outdoor typeHT porcelain bushingwith insulatoronprimary side including all accessories as required.(b) One cable box on LV side (Secondary side) consisting of four Nos porcelain bushing with copper rods, complete with nuts and washers, with two Nos cable glands suitable for reception/taking out of XLPE insulated heavy duty armoured cables including glands, joints and jointing materials complete. 2 (c) Oil conservator with filter type drain valve and oil level guage.(d) De-hydrating breather with first fill dehydrating agent (silca gel).(e) Explosive vent.(f) Thermometer pocket on tank cover.(g) One No 100mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter reading temperature indicator with resisting device for transformer.(h) Two earthing terminals on tank to facilitate fixing of 02 Nos 32x6mm galvanized iron earth strip for earthing of body and 02 Nos 32x6mm galvanized iron earth stripfor earthing of neutral.(j)Rating plate and terminal marking plate.(k) Oil level gauge(l) Oil drain filter valve(m) Lifting lugs.(n) Oil filling hole with cap/plug with connecting plate complete.(o) Air release valve vent with plug.(p) Four plain solid cast steel detachable rollers.(q)First filling of new and unused transformer oil IS-335/93 (Fourth revision) markedfiltered and tested upto 50 KV dielectric strength at 2.5mm air gap between testing electrodes. Accessories as per IS-1180 (Part-I) : 2014.(r) Busbar trunking of suitable size at LV side with complete fixing arrangement and incl insulators for connection of multiple outgoing cable at LV side.(s) The transformer shall be pole mounted.NOTE:- Certificate of di electric strength of transformer oilshall be submitted by contractor. 3 M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 25x4 mm galvanised mild steel strip by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c both ways with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 40 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge. 4 M & L for earthing complete with galvanised steel plate earth electrode 600 mm X 600 mm X 6 mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less than 1.5 metres below normal ground level, connected to earthing lead of 4 mm dia galvanised mild steel wire by means of bolts, nuts, check nuts and washers of galvanised iron from earth plate to test point upto 7.5 metre including all as shown in electrical plate No. 3 of SSR Part I (2009) including necessary concrete chamber in cement concrete M15 (Nominal Mix) using 20 mm nominal size coarse aggregate, precast RCC cover slab in cement concrete M15 (Nominal mix) using 20 mm nominal size coarse aggregate of size 40 cm X 40 cm X 5 cm reinforced with 8 mm dia TMT bars @ 150 mm c/c both ways with one handle for lifting made out of 8 mm dia bar, GI funnel, GI wire mesh filter, 20 mm dia GI pipe medium grade for watering, 20 mm dia GI pipe medium grade for protection of earthing lead, charcoal or coke and salt in alternate layers including necessary excavation and earth work in any type of soil/ strata and testing complete all as specified and as directed by the Engineer-in-charge. 5 Supply, Laying , jointing and testing LT underground cable, heavy duty, 1100 Volts, XLPE insulated and sheathed, armoured with multi-stranded aluminium conductor cable of size 95 Sqmm 3.5 core , laid in trenches/ducts or fixed to poles/walls or laid under roads/paths/drains/culverts duly encased in galvanised steel pipe of suitable sizes including cable gland of suitable sizesand aluminium lugs for connection complete all as specified and directed. 6 -Ditto- all as per item No 4 but 70 Sqmm 3.5 core 7 Supply, installing, testing and commissioning, factory made and tested (prototype having been CPRI type test certified),LT Panel, platform mounted, suitable for 415 volts 3 phase 4 wire, 50 Hz AC supply system, having bus bar chamber with insulated aluminium bus bars of 300 Amps 4 NosAmps rating installed on porcelain insulators. The panel shall be dust and vermin proof, IP 65 class protectionMS sheet and 40x40x6mm thick angle iron frame work, externally powder coated finish over one coat of red oxide primer outside and two coats of red oxide primer on inside,front opening type, with aprons for cable entry,with double door shutter and locking arrangement (including provn of 65mm Godrej (Freedom) lock with 2 keys,internal wiring 2.5 Sqmm with PVC insulated,solid copper conductor, FRLS cables, IS-694marked of adequate size incl the provision of space to accommodate the under mentioned items. The scope of work includes the following:-(a) Incoming(i) MCCB 4 pole, 415 volts AC grade, 200 Amps rating and 36/38KA rupturing capacityAdjustable Thermal & Fixed Magnetic- 01 No.(ii)Voltmeter 0-500 volts,square,144 mm,digital type, flush pattern with 3way rotary selector switch- 01 No(iii) Ammeter size 144 mm,square dial, digital type, flush pattern having dual range 200 amps with three way rotary selector switch with suitable size of LTs- 01 No(iv) LED Indicating lamps : 01 set of three(v) Secure 3 Phase, 1 Element, 4 Wire 440 V Digital Power Factor Meter .01 No (vi) Current & Potential Transformer : 01 No 8 (b) Outgoing(i) MCCB 4 pole, 415 volts AC grade, 80 Amps rating and 25/26KA rupturing capacity Adjustable Thermal & Fixed Magnetic - 02 Nos (c) Platform for the panel with PCC 1:4:8 type D-2 with 40mm graded crushed stone , 15 cm thick in foundation, brick work in CM 1:6 with sub class `B, old sizebricks, rendering 15mm thick in CM 1:6 on exposed surfaces and 100mm thick PCC padding 1:3:6, type C-1 using 20 mm graded crushed stone aggregate on top and grouting bolts etc for panel. The platform shall be such that it is of a height 45cmabove the nearest road level.Note:- (i)All out going feeders shall be connected by cable through suitable size gland plate / glands.(ii) The various feeders shall be indicated by 50 mm size lettersin synthetic enamel white paint. 9 S&F of cross arms, bracing, supports clamps and back plates, fabricated from structural steel sections incl nuts, bolts, washer, welding, bending cold or hot, drillingholes for bolts, in any shape or size as indicated or directed incl one primer, one under coat and one finishing coat of aluminium paint over prepared steel surfaceComplete all as directed by Engineer-in-Charge. 10 M&L in of ACSR conductor of any size and any type including stretching, fixing and binding to insulator on OH HT/LT line service feeders all as specified including aluminium binding wire or aluminium tapes complete all as specified & directed. 11 Supply ,erecting and fixing the true vertical position,steel tubular swaged pole410 SP-55 (11.0 metres long) complete with cast iron base plate,pole shall be conforming to IS-2713 ,and also pole cap/final taper plug ,bolts, nuts and washers, welded reduced section and longitudinal weld throughout entire lenght of pole,including two coats of black bituminous paint externally upto planting depth and remaining exterior portion of pole shall be provided with one coat of red oxide primer and two coats of aluminium paint complete all as specified and directed.(Numbering of the poles shall be done with synthetic enameled painted letter of shape & size as directed. Note:- (a) Cost of numbering of pole shall be deemed to included in unit rate. (b) Excavation, Earth work and PCC foundation will be measured and paid for separately. 12 Excavation in trenches not exc. 15. mtr wide and not exc. 1.5m in depth for foundation of ploes, stay assembly and laying of LT/HT cable as in any type of soil and getting out, complete all as specified and directed. 13 -Ditto- all as per item No 10 above but depth exceeding 1.5m and not exceeding 3m. 14 Removal of excavated material to a distance not exc. 50 m and depositing where directed at a level not exceeding 1.5 mtr above starting point, all as specified. 15 M&L for plain cement concrete 1:4:8 type D-2 (using 40mm graded stone aggregate) in foundation of PCC poles/struts as specified including necessary form work, complete all as specified & directed. 16 M&L for plain cement concrete 1:3:6 type C-2 (using 40mm graded stone aggregate) in foundation of stay assembly etc including necessary form work, complete all as specified & directed. 17 M&L for plain cement concrete 1:2:4 type B-1 (using 20mm graded stone aggregate) for coping around poles, including necessary form work finishing even and smooth without using extra cement, complete all as specified & directed. 18 M&L for pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 50mm height, 65mm diafor 550 volts grade 150mm height 150mm dia for 11000 volts grade, complete all as specified and directed. 19 S&F disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, white, brown or green, three-in-series assembly for tension with tension clamps for conductors, working pressure 11000 volts, all as specified and directed. 20 Supply, installation, commissioning and testing switch air break, gang operated with 12 insulator switch tripple pole mechanically operated, mounted on insulators and steel frame with mechanismworked from ground level for current rating 400 Amp operating voltage 11 KV outdoor type vertical mounted type complete with locking arrangment, asembly with fuse mount carrier and fuse element of required capacityand isolate suitable for 11 KV including necessary electric connection and 11 KV Fuse (drop out type) of capacity 10 Amps. complete with DO fuses with one number operating rod of 25 mm dia bore grade GI pipe of suitable length worked out from ground level and handle complete with lock and two Nos keys including flat iron clamp 50mmx6mm, MS channel of suitable size & length for fixing GOD including nut bolt washersall as directed by Engineer-in-charge. 21 M & L for lightning arresters expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo amp suitable for 11000 volts, complete all as specified and as directed by the Engineer-in-Charge 22 Supplying ,laying, jointing, testing and commissioning of XLPE insulated screened PVC bedded galvanised steel strip or wire armored electric power cable (Heavy duty ) with aluminium conductor 11000 volts grade, cross sectional area 95 sqmm 3 coreearthed suitable for 11KV earthed systems all as specified and directed. 23 Supply and fix cable jointing kit for 11 KV (Earthed) grade cable for out door termination cold shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured Aluminium conductor cable of size70to 120 sqmm, all as specified and directed. 24 M & L for stay assembly 16mm dia complete with accessoriesincluding galvanised stay strand 7/3.15mm for 11 mtr pole as per electrical plate No. 1, all as specified.Note: Loop type insulator, stay clamps excavation and concrete measured separately. 25 M&L for loop type insulator, vitreous poreclain, white, brown or green, large size, with overall dimensions 90 x 140mm clerance of hole 25.5mm, complete all as specified and as directed.
