REPAIR AND REPLACEMENT OF SPARES TO HT VCBs 11 KV SUB STATIONS RMUs LBs 11 KV OH LINES, GOD LIGHTNING ARRESTORS, HT UG CABLES, LT UG CABLES, CONTROL CABLES LT PANELS APFC PANELS LT SWITCH GEARS AND ITS CONNECTED EM WORKS AT EETF DSST DSP CIC MRSAM AR

Amount

Supplying, laying, jointing, testing and commissioning 11000 volts grade, Earthed, HT XLPE insulated of size 3 core 120 Sqmm,, insulation screened with extruded semi-conducting compound in combination with copper tape (0.3 KA for one second), cores laid up, PVC inner sheath with fillers, galvanized steel flat strip armoured, heavy duty, electric cables, with multistranded aluminium conductor, conductor screen with extruded semi conducting compound and overall PVC sheathed cable as per IS-7098 (Part-2) 1988 with latest amendments, laid in trenches/ passing through pipe/duct/road crossing or fixed on poles, walls with suitable size clamps made out of mild steel flat iron including jointing material such as crimping type lugs, brass cable glands, heavy duty double compression type etc., including disconnecting and taking down unserviceable cable complete all as specified and as directed.

All as per item No 1 above but of capacity 3 core 95 Sqmm

NOTE FOR ITEM Nos. 1 TO 2: Earthwork Excavation, sand cushioning, GI pipe for cable protection and cable covers will be measured and paid separately under relevant items of this BOQ.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting out in hard/dense sol complete all as specified and directed.

Returning, filling in , including spreading, levelling, watering and well ramming in layers not exceeding 25cms complete all as specified and directed.

Removal of excavated soil to a distance not exceeding 50 mtrs and deposited where directed at a level not exceeding 1.5mtrs above the starting point all as directed.

Supply and spread natural dry river sand for cable cushioning in trenches and punned down all as specified and directed. Note : Prunned thickness will be measured for payment.

Supply and lay un reinforced pre cast concrete cable cover class LV type II flat size 300X180mmX40mm all as specified and directed.

Cutting of existing bituminious/PCC road or flooring/plinth protection, for laying of GI pipe in road intersection for passing of LT XLPE cable including excavation in any type of soil, returning and filling in and making good top 30cm of the trench by providing PCC 1:2:4 type B1 (using 20mm graded stone aggregate) to flush with existing road surface complete all as specified and as directed.

Supply and lay 150mm dia GI pipe light grade, laid in trenches, road crossing or fixed to walls/poles etc., for protection of underground cable/earth strip including sealing ends with hessian cloth impregnated with bituminous compound in ground and with teak wood bushes for ends fixed on walls/poles complete all as specified and as directed.

M&L for locating fault in 11 KV HT underground cable of any size with the help of fault locator vehicle organized from TSSPDCL/TSTRANSCO by injecting necessary high voltage to the faulty cable within 12 hours of time from time of reporting of fault complete all as specified and directed. NOTE: Quoted rate is deemed to include for necessary charges towards liaisoning for arranging fault locating vehicle, transportation of trained technicians and charges payable to Electricity Department.

Dismantling the existing unserviceable LT panel board, Fabricate, supply and install cubicle type CPRI approved make LT panel board, indoor type, totally enclosed, dust & vermin proof (protection class IP 54) front opening with self locking arrangment made out of MS angle iron frame work, MS flat iron and CRCA sheet of 2.0 mm thick as per IS 5039 duly painted with powder coated paint of approved shade after minimum seven tank treatment process. Panel board shall be suitable for 415 volts, 50 Hz, 3 phase 4 wire system complete with 1200 amp capacity aluminium bus bar and wiring with suitable size of PVC insulated, multi stranded copper conductors and all connected acessories required for satisfactory functioning of panel board such as thimbles, glands, bolts, nuts, washers etc., and all other accessories, as required at site complete all as specified and directed including supplying and fixing of following all as indicated below :-

(a) Single unit digital type Ammeter of range 0-1200 Amps and voltmeter of range 0-500 volts with CTs/PTs conforming to relevent IS code. Make : AE/NECO/L&T -1 No. (b) LED type indicator lamp set of red, yellow and green.-1 set, (c ) The panel shall have adequate space for fixing the following :- (i) ACB 4 pole ,800 Amp current carrying capacity-01 No, (ii) MCCB 3 pole, 630 Amp current carrying capacity.-2 Nos (iii) MCCB 3 pole, 250 Amp current carrying capacity.-4 Nos (iv) MCCB 3 pole, 100 Amp current carrying capacity.-4 Nos Notes : 1. ACBs, MCCBs will be measured and paid for seperately under respective items. 2. Unit rate quoted shall be deemed to include for necessary arrangement for connecting and proper alignment of the panel board with the existing panel board.

Supply and fix LT Air circuit breaker with thermal-magnetic based release (over load, short circuit, earth fault protection and metering relay) having current carrying capacity 800 Amp, breaking capacity 50 KA, 415 volt,50 Hz, 4 pole, mechanical draw out type with mannual spring charge mechanism with self contained CTs. Make: Seimens/GE/L&T/ABB/Standard

Supply and fix 3 pole 630 Amp ,50KA ruppturing capacity MCCBs with adjustable thermal and magnetic settings, 50 Hz at 415 volt, conforming to IEC -60947-II/ IS-13947-II including provision of copper cable/ extended terminals of suitable ratings from MCCBs to busbar and connection of LT cables with MCCBs with suitable size aluminium lugs complete all as specified and directed. Make : Havell's/Schneider/Standard/GEC/LegrandL&T

MCCBs all as per Sl Item No 13 above but 250 amp ,35 KA ruppturing capacity.

MCCBs All as per Sl Item No 13 above but 100 Amp ,16 KA ruppturing capacity.

LT Panel Board all as per Sl Item No 11. here in before but with 900 Amp capacity Busbar including supplying fixing of following all as indicated below.

(a) Single unit digital type Ammeter of range 0-600 Amps and voltmeter of range 0-500 vots with CT's / PT's conforming to relevent IS Code. Make-Legrand/Havells/L&T -1 No. (b) LED type indicator lamp set of red, yellow and green.-1 set. The panel shall have adequate space for fixing of following :- (i) MCCB 4 pole, 630 Amp current carrying capacity.-1 Nos. (ii) MCCB 3 pole , 200 Amp current carrying capacity.-2 Nos. (iii) MCCB 3 pole, 100 Amp current carrying capacity.-3 Nos. (iv) MCCB 3 pole, 63 Amp current carrying capacity.-3 Nos. Notes: 1. MCCBs will be measured and paid for seperately under respective items. 2. Unit rate qouted shall be demeed to inculde for necessary arrangement for connecting and proper alignment of the panel board with the existing panel board.

MCCBs all as per Sl Item No 16 here in before but 4 pole 630 Amp, 50 KA.

MCCBs all as per Sl Item No 16 here in before but 3 pole 200 Amp, 35 KA.

MCCBs all as per Sl Item No 16 here in before but 3 pole 100 Amp, 25 KA.

MCCBs all as per Sl Item No 16 here in before but 3 pole 63 Amp, 25 KA.

Opening of LT panel board, disconnecting and removing of the burnt out cable end terminations, cutting and reterminating of the cable end portions with proper size of lugs and decarbonising of panel busbar and cleaning with CTC, replacing of cable glands, connecting back cable end termination properly, opening of the busbar chambers, cutting removing of the cable connections, reterminating with proper size of lugs, tightening of the bus bar nuts, bolts including wrapping of the busbar with colour codes, checking of all switches, MCCBs all isolators, tightening of the loose connections replacing of burnt out fuse, cut out fuses with new ones complete all as directed by Engineer-in-Charge.

Supply and replacement of unserviceable rubber matting with new one of 12mm thick 1M X2 M LT ISI marked complete all as specified and directed by Engineer -in-Charge

Supply and replacement of unserviceable HT rubber mat with new one of of size 1mx2mx19mm ISI marked complete all as specified and directed by Engineer -in-Charge.

Taking out unserviceable analoge/digital type ammeter, square type from LT panel boards, supply and fixing analog/digital type ammeter,square type of ratio 200/5 suiitable for three phase supply with suitable capacity CTs including electric connection and testing complete all as specified and directed

Taking out unserviceable analoge/digital type voltmeter from LT panel boards, supply and fixing analog/digital type volt meter of 0-500 volt range suitable for three phase supply including electric connection and testing complete all as specified and directed.

Taking out unserviceable LED type indicator lamp unit from the panel boards, supply and fixing LED type indicator lamp unit of red/ yellow/ blue/ green/ Amber with bulb including connection and testing complete all as specified and directed. Make: AE/IMP/KAYCEE/C&S/L&T

M&L in repairs, Earthing complete with copper earth plate electrode of size 600 x 600 x 3.15mm thick buried directly in ground (earth pit not less than 2.25m deep below the normal ground level) with top edge of plate not less than 1.5m below normal ground level connected to copper strip 20x3mm as earth lead by means of bolts, nuts, washers and check nuts made out of galvanized iron or steel all as shown on Electrical Plate No. 3 of SSR Part-I including testing on completion complete all as specified and directed.

Note 1: The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, 50mm thick RCC 1:2:4 type B-1 using 20mm graded stone aggregate cover slab reinforced with 6 Nos of 8mm dia TMT bars both ways, funnel with watering pipe 20mm dia medium grade, GI protection pipe medium grade 25mm dia and wire mesh complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub-heading earthing, specified on Sl Page No. 422 of SSR Part-II. 2. Copper earth strip beyond 7.5m will be measured and paid separately.

M&L, copper earth strip 20 x 3mm buried in ground or fixed on wall or drawn through pipe or fixed to poles or any other indicated situation for earthing complete all as specified and as directed.

M&L, Painting to outer surface of panel board / feeder pillar box installed at various locations with one coat of synthetic enamel grey paint using spray gun machine after removing all dust and rust and writing date of painting with black synthetic enamel paint complete all as specified and directed. Note: The exposed surface of panel meters, lamps, switchgears to be suitably covered during painting.

Supply and fix Current Transformer 11 KV, Ratio 300-150/1-1A, Core 1-CL 0.5 15 VA, Core 2-CL 5P10 15 VA, STC 26.3 KA for 1 Sec Make : Straton Electricals Pvt Ltd

Taking down the unserviceable power factor capacitors of different capacities from the capacitor panel board after disconnecting the electric supply, supply and fix all poly propelene (APP) box type, rectangular in shape,LT automatic power factor shunt capacitors ,heavy duty, for 3 phase 440 Volt & 50 Hz system in the power factor capacitor panel board with suitable fixing arrangement including connection with suitable copper cables and testing complete all as specified and directed. Make: L&T/Capco/Neptune Note: (i) capacitors shall conform to IEC 831-1,with total losses not more than 0.25W / KVAR. (ii) Copper cables & thimbles will be measured and paid for seperately under respective items.

Dismantling unserviceable/ burnt thyristors/ power contactors from the power factor 25 KVAR capacitor panel boards after disconnecting the electric supply, supply and fix capacitor duty contactors suitable ratings of capacitors including necessary electric connections and testing complete all as specified and directed. Make: L&T/HPL/Neptune

All as per item No 33 above but 50 KVAR Capacitor

All as per item No 33 above but 5 KVAR Capacitor

All as per item No 33 above but 15 KVAR Capacitor

All as per item No 33 above but 10 KVAR Capacitor

Dismantling unserviceable push button starters (start/stop button) from the power factor capacitor panel boards after disconnecting the supply, supply and fix push button starters, screw type for operation of capacitors all as per sample available at sub stations including necessary electric connections and testing complete all as specified and directed.

Dismantling unserviceable/ burnt electric cables connected with capacitors, supply and replacement of 50 Sqmm size of PVC insulated, unsheathed, single core industrial copper cable (flexible), 1100 Volt grade, conforms to IS: 694, ISI marked, in the panel boards including necessary electric connections and testing complete all as specified and directed. Make: Havells/Plaza/Finolex/legrand.

All as per item No 39 above but 35 Sqmm

Checking of APFC panels/capcitors bank panels, servicing of the same, cleaning of the switch gears, busbars with CTC to remove the carbon deposits, checking of the connections, functioning of the components such as capacitors, contactors, switch gears etc ,disconnecting and removing of burnt out cable end portions, crimping with new suitable lugs of the same , removing of burnt out thyristors connecting back and testing complete for maintaining efficient power factor at the sub station all as directed. Note : Replacement of unserviceable spare parts will be measured and paid separately as S&F under respective item here-in-after.

BHAGYARAM ENTERPRISES

Maruthi international

Brite electricals