PROVISION OF 100 KVA TRANSFORMER AND CONNECTED ITEMSFOR NFS NODE AT MIL STATION BHUSAWAL UNDER GE (SOUTH) AHMEDNAGAR

Amount

Supply, installation, testing and commissioning of transformer step down out door type copper wound, 11KV on HT side and 433 volts on LT side at no load 3 phase 4 wire 50 c/s AC supply of 100 KVA , oil immersed laminated iron core naturally cooled with external cooling tubes, delta connected on HT side and star connected on LT side, corresponding to vector group DY-11 with natural brought out separately for earthing, off load, changing tap arrangements up to +/-7.5% with a step of +/- 2.5% complete on and including PCC platform including first filling of transformer oil up to appropriate level,cable end box on HT and 433 V side complete with standard fittings confirming to IS-1180 (Part I) or latest IS, all as specified in particular specifications

.Following fittings and accesorries are deemed to be included in rate quoted.(a) HT bushing 11KV in cable box enclosure- 03 Nos ,(b) LT including nrutral bushing in cable box of LT side-04 Nos, (c)Oil conservators with filling holecap and plain oil level gauge, (d) silica gel dehydrating breather charged with silica gel, (e) Oil drain Valve, (f) Oil filter valve, (g) Lifting lugs 02 Nos, (h) Earthing terminals, (j) Diagram and rating plate, (k) Air vent, (l) Explosive vent, (m) Thermometre with thermometre pocket, (n) Four bi directional plain rollers, (o)150mm dial winding temprature gauge with one set of contacts of alarm and trip.

Supply, install erect in trench vertical position steel tubular seweaged welded poles complete with MS base plate of 6mm thick of size 450mm x 450mm finial taper plug pole cap, bolts, nut and screwed, pole made out of ERW MS tubing confirming to IS 2713 Part II of 11 mtr long 410 SP-55 including drilling of holes of required size and nos for fixing of cross arms bracing support/ taking out of cables etc, with inbuilt junction box for 3 phase 4 wire AC supply and painting with one coat of red oxide primer and two coat of aluminium paint for exposed surface and two coat of black bituminious paint for the portion embeded in concerete complete all as specified and as directed by Engineer -in-charge.

S & F Switch air break gang operated triple pole mechanically operated mounted on insulator and steel frame out door type suitable for vertical installation single brake provided with locking arrangement, consisting of MS channel ,HT post type insulator ,copper alloy high pressure assembly ,operating rod of GI pipe medium grade confirming to IS-1818 of 1972 ,suitable for 11000 volt ,200 Amps with and including DO fuse set 12 insulators, making all incoming and outgoing connections,painting steel work with two coats of alluminium paint over a coat of primer all as specified.

M& L Lightning arrester gapless metal oxide type complete with all fittings distribution class discharge capacity 65 kilo amp, current rating 5 kA suitable for 11000 volt complete with all fittings.

Supply and fix cable end termination suitable for XLPE ,HT under ground cable,50 to 95 sqmm,3 core,11000 volt ,heat shrink type outdoor end termination Make:-Denson/3M/Raychem

Supply and fix Danger notice board of size 25X20cm, 1.6mm thick ms sheet, vitreous enamelled, white with letters in Hindi,English figures with conventional skull and bones in signal res colour fixed with ms clamps,nut bolts etc all as specifide and directed.

S & F Cross arms ,bracings,supports,clamps and back plate fabricated from structural steel sections including nuts ,bolts, in any shape or size as indicated or directed and inclusive of two coat of aluminium paint over a coat of red oxide all as directed by Engr-in-Charge.

M&L for stay assembly comprising of 20 mm dia stay rod 2150 mm long, loop type insulator of size 90 mm x 140 mm, galvanised stay plate 6mm thick of size 300 mm x 300 mm, stay bow, stay clamps etc. complete in replacement of old UNSV stay assembly all as specified and directed & shown in EP No. 1 of SSR Pt I. Note : Excavation, earth work and PCC shall be measured and paid seperately.

Supply and fixing 11 KV grade pin type insulator of 150mm height, 150mm dia complete including spindle, washers, necessory size of line connectors, line taps and compression/crimping type sleeves joints etc all as specified.

Plain cement concrete 1:4:8 type D-1 using 20 mm graded stone aggregate for foundation of poles etc,

Plain cement concrete 1:3:6 type C-1 using 20 mm graded stone aggregate for coaping of pole etc.

Steel tubing GI light grade for cable protection passing under road /floor or for fixing to poles all as specified and as directed of size 100 mm dia along with necessary calmp nut bolt etc complete all as specified and directed Make - TATA / JINDAL /SWASTIK

M&L Earthing with 600X600X6 mm thick , galvanised steel earth plate electrode buried vertically in ground (Earth pit not less than 2.25 meter deep below normal ground level ) with top edge of plate vertically at a depth ,not less than 1.5 m below ground level connected to and including GI strip of size 32X6 mm by means of bolts,nuts,check nuts, And washer of galvanised steel, Gi shrip to be provide upto the extent of 7.5 m GI strip to be duly connected to metalic bodies of HT/LT equipment with provision of mixture of charcoal dust & common salt packed all ground the earth plate upto MS funnel with wire mesh provided inside concrete earth pit for watering arrangement,complete all as shown on electrical plate no.3 of SSR Part I (2009) and testing on completion.

M&L XLPE insulated screned PVC beded galvanised steel strip or wire armoured earthed electric power cable (heavy duty) with aluminium couductor 11/6.35 KV grade suitable for earthed system cross sectional area 95 sqmm 3 core H.T.U.G cable laid in tranches/through GI pipe/fixed along with pole complete all as specified & directed Note (i)-Excavation and earth work shall be measured and paid for separately under relevant item of schedule.(ii) rate is inclusive of cable gland & cable lugs

S& F XLPE insulated armoured and pvc sheated heavy duty electric cable size 3.5 core ,95 Sqmm cross sectional area with aluminium conductor 1100 volt grade as per IS 7098 (Part-1) 1988 with latest amendment laid in tranches passing through pipes /ducts including testing complete Note- (i) rate is inclusive of cable gland & cable lugs (ii) -Excavation and earth work shall be measured and paid for separately under relevant item of schedule.

Supply, install, testing and commissioning SF6 gas insulated circuit breaker HT 11 KV, 3 Phase, 50 cycles totally enclosed metal clad of 3mm thickness, high tensile steel with zinc coating, outdoor type floor mounting having one incoming and two outgoing connections (3 way RMU) with internal copper bus bars rating 630A, consisting of 01 No main VCB and 02 No outgoing fixed manual vacuum circuit breaker with bus metering panel. All connections of RMU should be enclosed in one tank to avoid multiple inter connections sealed for life robotically welded non magnetic and non ferrite 304 grade stainless steel tank of 3mm thick having IP67 of protection filled with SF6 gas with leakage rate less than 0.1% per year tested as per IEC 62271-200. The earthing busbar shall be provided throughout the length of switchgear with all accessories such as terminal boots, VPIS and mechanical indication for VCBs ON/OFF.

Item No 16 contd/... The complete enclosure of switchgear shall be of IP-54. The outer of enclosure shall cover entire front part of switchgear incl cable compartment , overload relay, digital ammeter, voltmeter and rating upto 400 Amps complete incl PCC platform for mounting the switchgear complete with following accessories(a) Vacuum circuit breaker module having three position switch, off load (connected in series with VCB).(b) Insulation medium – SF6 gas (c) Arc quenching – Vacuum type (d) Short time current – 20KA/3 Sec (e) Making cap – 50 KA (f) Cable box should be front side, air insulated suitable upto 3 core 185 Sqmm, 11 KV cable (g) Temparatur as per IEC 62271-200 (h) CT to be ring type LVCB (j) PT to be non disconnecting stud type (k) Lifting lugs (l) Gas pressure indicator (m) VCBs rating 400/630A

Excavation in trenches for laying of cables ,poles and stay in soft/loose soil not exceeding 1.5 mtr wide and not exceeding 1.50 mtr deep and getting out.

Excavation in trenches for laying of cables ,poles and stay in hard/dense soil not exceeding 1.5 mtr wide and not exceeding 1.50 mtr deep and getting out.

Returning & filling in, including spreading and leveling, watering and well ramming in layers n.exc. 25cm all as specified and directed by Engr-in-Charge.

Removing excavated soil n.exc 50 mtr and depositing where directed at a level n. exe 1.5mtr above the starting point all as specified and directed.

M & L for Unwashed Sand cushioning to under ground cable provided with a layer of 8 cm deep before laying and 15 cm covering above the top edge of cable after laying complete all as specified.Note : measurement shall be done after puning down of sand.

Supply and laying burnt bricks for cable protection laid length wise perpendicular to the axis of cable complete all as specified and directed.

Steel tubing GI light grade for cable protection passing under road /floor or for fixing to poles all as specified and as directed of size 100 mm dia along with necessary calmp nut bolt etc complete all as specified and directed Make - TATA / JINDAL /SWASTIK

CHAUDHARY AND ASSOCIATES

MORESHWAR ELECTRICALS CORPORATION

M/s. Gurudatt Electricals And Engineers, Aurangabad

DURGAI ELECTRICALS

Maruti Abhiyantriki

nhsaluji and associates

Bhirud Electric Stores