UPGRADATION OF TRANSFORMER AT JCOs / OR MD ACCN AT DIGIANA UNDER GE SATWARI

Amount

Supply, installetion, testing and commissioning outdoor type,step down transformer 11000/433 volts (at no load) AC, 3 phase 50 Hz capacity 315 KVA, core type, double copper wound,oil immersed,naturally cooled,oil natural, Air natural (ONAN) with external cooling fins, delta connected on primary side (HV) star connected on secondary side (LV) in accordance with vector symbol, DYN 11 (vector group) with neutral brought out on secondary side (LV side) and having tapping at + 2.5% to +7.5% HV side to be changed by means of hand operated off load tap change gear. The maximum temperature rise should not exceed 45 degree celcius in oil and 55 degree celcius in HV.LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree celcius. The transformer shall be IS:1180 Part-1:2014 (Level-II) and BEE Certified and shall comprise of the followings:- (a) 03 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete withbushing,copper rods, nuts and washers. ......contd to item No-1.01...

(b) One cable box on LT side ( Secondary side) consisting of four Nos porcelain bushing with copper rods, complete with nuts and washers, with two Nos cable gland suitable for reception/taking out of XLPE insulated heavy duty armoured cable including gland, joint and jointing materials complete. (c ) Oil conservator with filter type frain valve and oil level gauge. (d) De- hydrating breather with first fill dehydrating agent (silica gel). (e) Explosive vent. (f) Thermometer pocket on tank cover. (g) One Nos 100 mm dia, dial type thermometer , vapor 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 cover to facilitate fixing of 32 X 6 mm galvanised iron earth strip for earthing of neutral & body. (i) Rating plate and terminal making plate. (j) Oil level gauge. (k) Oil drain/ fillter valve. ......contd to item No-1.02...

(l) Lifting lugs. (m) Oil filling hole with cap/plug with connecting plate complete. (n) Air release valve plug. (o) Four plain solid cast steel detachable rollers. (p) Extra bushing for neutral , outside the LT cable box for providing independent earthing for neutral. (q) First filling of new and unused transformer oil IS-35/93 (fourth revision) marked (Make - savita/Power Oil) filtered and tested up to 40 KV dielectric strength at 2.5 mm air gap between testing. (r) Buchholz relay complete connection with 2.5 mm copper conductor cable from relay contactor to HT breaker. Note:- (i) Certificate of dielectric strength shall be submitted by the contractor after filling the oil.

Supply, laying and testing XLPE insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty earthed) with aluminium conductor, 11 KV, grade cross sectional area 120 Sqmm 3 Core laid in trenches/road crossing/on wall etc complete and all as specified directed by Engr-in-charge.

Excavation in trenches not exc. 1.5 m wide and not exc. 1.5 m depth for foundation laying of cable ect or for shaft wells cesspits manholes per holes etc 10sqmm on plan and n.exe 1.5m in depth and getting out in any type of soil .complete all as sepecified dirceted by Engr-in-charge.

All as per item No 3 above but exceeding 1.5 mtr and not exceeding 3 mtr depth complete all as sepecified dirceted by Engr-in-charge.

Cement concrete 1:3:6 type C-2 using 40mm graded stone aggregate for foundation of pole/stay/strut etc complete all as specified.

Cement concrete 1:2:4 type B-1 using 20mm graded stone aggregate for pole pedestal (PCC) including necessary form work etc complete all as specified.

Standard cable route indicator 10 cm dia, CI plate 6 mm thick embossed with raised lettering HT cable 11000 volts painted with luminous paint and mounted on angle iron 25x25x3mm and 0.6 mtr long embedded in PCC block 1:2:4 (size 30 cm x 15 cm x 15 cm) type B-1 using 20mm graded stone aggregate complete all as specified.

Cross arms bracing support clamps, back plate etc fabricated from structural steel section with bolts, nuts, washers,welding, bending cold or hot,drilling holes for bolts in any shape and size as directed or indicated and painted with one coat of red oxide and two coats of aluminium paints..complete all as sepecified dirceted by Engr-in-charge.

Anti climbing device, spikes type, fabricated out of MS bars (round, square or flat) including nuts, bolts, washers and welding in two halves made to shape to suit the cross section of the poles, spike welded to flat iron, including on primer coat, one under coat and two finishing coats of silver aluminium paint including preparation of surfaces..complete all as sepecified dirceted by Engr-in-charge.

Supply & fixing danger notice plate 250 mm x 200 mm made of mild steel sheet 1.6mm thick & vitreous enamelled white on both sides and with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size for HT 11 KV as required.complete and all as specified directed by Engr-in-charge.

Danger notice plate 200 mm x 150 mm made of mild steel sheet 1.6mm thick & vitreous enamelled white on both sides and with letters, figures and conventional skull and bones in signal red colour and fixed with MS clamps, bolts and nuts of approved size for LT 440 Volts as required..complete all as sepecified dirceted by engr-in-charge.

Air break, gang operated switch with 15 Nos insulators, outdoor type pole, mechanically operated, suitable for vertical operations, single break, provided with locking arrangement (including 50mm Godrej lock with two keys) mounted on and including steel frame and HT post type insulators copper alloy, high pressure, with operating mechanism having operating rod of 20 mm dia GI pipe (medium grade) operating from 1.2m above GL complete including drop out fuses conforming to IS-1318 of 1972, rated voltage 11 KV and for current rating 400 Amp all as specified.

Supply & errecting truelly vertical position steel tubular swaged poles complete with CI base plate, finial taper plug bolts, nuts & screws 11.0 mtr long type 410 SP-55 conforming to IS 2713 (Part 1 to 3, 1980 including two coat of synthetic enamelled aluminium paint over a coat of primer. Five strips of 300mm thick alternate black and white paint of approved make should be provided on pole from the PCC bad complete all as specified and directed.

Lightning arrestors (set of three), expulsion type, HT metal oxide surge arrestor polymeric type, complete with all fittings, transmission class rated voltage 125 KV contionous operating voltage at 8/20 impulse, 75 KV discharge capacity 65 Kilo amp suitable for 11000 volts complete all as specified and directed.

S&F outdoor type cable end termination jointing kit heat shrinkable complete with all accessories and jointing materials suitable mounting on channel/angle iron with and incl cable pieces of suitable size length and line type vice for 3 core 120 Sqmm XLPE HT cable (kit shall be not older than 3 months from the date of manufacture) complete all as specified and directed.

Earthing complete with galvanized steel earth plate electrode 60 cm x60cmX6 mm thick buried directly in ground to a depth not less than 3 mtr below normal ground level with top edge of earth plate at a depth not less than 2.25 mtr below ground level, earth plate surrounded by 15 cm thick packed layer of charcoal, magnicium sulphate, common salt and connected with in and including GI strip of size 32x6mm by means of stainless steel bolts, nuts, check nuts and washers connected to Transformers / panels. 40mm bore of GI pipe (light grade) from earth plate up to testing point for protection of GI strip and 20 mm bore GI pipe (medium grade) with wire mesh and funnel for watering including necessary excavation and earth work, (in any type of soil) PCC chamber (1:3:6) type C-2 with RCC cover with suitable size of handle made out of 8mm dia MS bars and angle iron 40 x 40x 3mm frame for cover complete all as shown in electrical plate No 3 of MES schedule Part I of SSR Part-I 2009 complete all as specified. RCC cover shall be painted with red paint over a primer coat and the rate include in the unit rate of item

Earthing complete with galvanized steel earth plate electrode 60 cm x60cmX6 mm thick buried directly in ground to a depth not less than 3 mtr below normal ground level with top edge of earth plate at a depth not less than 2.25 mtr below ground level, earth plate surrounded by 15 cm thick packed layer of charcoal, magnicium sulphate, common salt and connected with in and including GI wire of 4mm dia by means of stainless steel bolts, nuts, check nuts and washers connected to Transformers / panels. 20mm bore of GI pipe (light grade) from earth plate up to testing point for protection of GI strip and 20 mm bore GI pipe (medium grade) with wire mesh and funnel for watering including necessary excavation and earth work, (in any type of soil) PCC chamber (1:3:6) type C-2 with RCC cover with suitable size of handle made out of 8mm dia MS bars and angle iron 40 x 40x 3mm frame for cover complete all as shown in electrical plate No 3 of MES schedule Part I of SSR Part-I 2009 complete all as specified. RCC cover shall be painted with red paint over a primer coat and the rate include in the unit rate of item.

Supply, laying and testing LT XLPE insulated, armoured, heavy duty electric aluminium conductor, PVC sheathed galvanized steel strip or wire, armoured electric power cables, with aluminium stranded conductor 1100 volts grade, cross sectional area, 500 Sqmm, single core laid in trenches/road crossing/under floor / on walls/ on poles including testing complete all as sepecified dirceted by Engr-in-charge.

Supply, laying and testing LT XLPE insulated, armoured, heavy duty electric aluminium conductor, PVC sheathed galvanized steel strip or wire, armoured electric power cables, with aluminium stranded conductor 1100 volts grade, cross sectional area, 185 Sqmm, 3.5 core laid in trenches/road crossing/under floor / on walls/ on poles including testing. .complete all as sepecified dirceted by Engr-in-charge.

All as per srl item No 19 above but sec. area 70 Sqmm, 3.5 core complete all as sepecified dirceted by engr-in-charge.

All as per srl item No 19 above but sec. area 50 Sqmm, 3.5 core.complete all as sepecified dirceted by engr-in-charge.

Supply, Installation, testing & commissioning of totally enclosed LT Panel, outdoor type (IP-54) fabricated out of 3.15 mm thick CRCA sheet dust and vermin proof powder coated, double door type (independent cabin) including locking arrangement for each MCCBs, bus bar chamber enclosed complete suitable for operating on 415 volt 50 hz AC supply internally wire with colour coated copper conductor/strip of adequate size from main incoming MCCB to bus bar and bus bar to outgoing MCCB/MCBs having legs 45 cm made out of 65x65x6mm angle iron duly painted with 2 coat of synthetic paint over a coat of primer, grouted on brick masonary platform upto 60 cms. Brick masonary platform should be 30 cm above the ground level. Danger notice sticker of 440 volts shall be pasted on front external surface of door comprising the following :- INCOMING:- MCCB 630 Amp 4 pole 36 KA, thermal and magnetic releases with Ics=100%Icu. conforming to IS/IEC 60947-2 with short circuit and over load protection. Makes: Legrand/Schneider/Siemens- 01 No as incoming. .......contd to item No-22.01

BUS BAR:- 01 set of 800 Amps TPN aluminium bus bar of suitable length and of cross section as per design. Bus bars shall be designed to with stand a fault level of 50 KA at 415 volts with heat shrinkable colour coated insulated sleeves. OUTGOING:- (i) MCCB 4 pole 400 Amp, 36 KA with thermal and magnetic release with Ics=100% Icu conferming to IS/IEC 60947-2 with short circuit and overload protection:12 IN Make:- Legrand/Schneider/Siemens - 02 Nos as outgoing. (ii) MCCB 4 pole 100 Amp, 16 KA with thermal & fixed magnetic release with Ics=100% Icu. conferming to IS/IEC 60947-2 with short circuit and overload protection:12 IN Make:- Legrand/ABB/Seimens/Schneider - 02 Nos. (iii) MCCB 4 pole 63 Amp, 16 KA with thermal & fixed magnetic release with Ics=100% Icu. conferming to IS/IEC 60947-2 with short circuit and overload protection:12 IN Make:- Legrand/ABB/Seimens/Schneider - 02 Nos. .......contd to item No-22.02

Supply and fixing 'NEXUS+' LED Street lighting 60W Aesthetically designed roadway luminiare with excellent thermal management with high power LEDs as light source including electronic driver 60W LED 6000K. MAKE :- CROMPTON cat part No LSTP-60-CDL and equivalent make of Philips/Wipro/Helonix.

Supply and fixing 'NEXUS+' LED Street lighting 45W Aesthetically designed roadway luminiare with excellent thermal management with high power LEDs as light source including electronic driver 45W LED 6000K. MAKE :- CROMPTON cat part No LSTP-45-CDL and equivalent make of Philips/Wipro/Helonix.

GI pipe light grade 100mm bore under road, path or along poles as cable protection complete and all as specified directed by engr-in-charge.

All as per item No-25 above but size 40mm bore complete and all as specified directed by engr-in-charge.

Street light bracket made out of 40mm dia GI pipe light grade of length up to 1.2mtr as required bent to shape required with and including 2 nos 50x6mm Msflat iron clamps complete all as specified and directed.

Plain cement concrete 1:4:8 type D-2 using 40mm graded crushed stone aggregate as in floors,foundations filling and mass concrete.complete and all as specified directed by Engr-in-charge.

Brick work with old size brick curved or straight on plan exceeding 6m area radius built in CM 1.6 bricks crushing strength not less than 75 kg/square cm. complete and all as specified directed by Engr-in-charge.

Rendering 15mm thick on fair of brick surface in cement mortar 1:4 finished even and fair, complete all as specified.

Preparing newly plastered surfaces of wall and applying two coats of cement base paint over a coat of white wash complete and all as specified directed by Engr-in-charge.

Hardcore of broken stone of gauge exc 63mm & n.exc 100mm deposited spread and leveled in layers n.exc 15cm thick watered and well rammed to a true surface complete and all as specified directed by Engr-in-charge..

PCC (1:3:6) type C-2 using 40mm graded crushed stone aggregate as in sub base of floor 75mm thick finished even and fair without using extra cement.complete all as specified directed by Engr-in-charge.

Painting with synthetic enamel paint two coats over a coat of red oxide primer including preparing the new untreated steel surfaces of any description over 10cm in width or girth omplete all as specified directed by Engr-in-charge.

Returning, filling in incl. spreading, leveling, watering and well ramming in layers not exc. 25 cm thick in any type of soil complete all as specified and directed by Engineer-in-charge.

Removing excavated material (soil) not exceeding 50m and depositing where directed at a level not exceeding 1.5 m above the starting point. .complete all as sepecified dirceted by Engr-in-charge.

Dry river sand as in sand cushioning to under ground cable including punning down of sand in layers as specified and as directed.

Supply and laying dry bricks over cable laid in trenches as mechanical protection to cable with width equal to the length of bricks with well burnt sub class 'B' bricks complete all as specified.

GI strip 32 x 6mm buried in ground as earth continuity all as specified and directed.

SATISH AND CO

M/S S K Electricals Regd

M/S ASHOK KUMAR SURI