REPAIR/MAINT OF HT CABLE, SWITCHGEAR, TRANSFORMER AND OTHER EQUIPMENT AT 4 AFSB VARANASI

Excavation in trenches , not exceeding 1.5 m wide and not exceeding 1.5 m in depth for founddation etc and getting out in soft/loose soil complete all as specified and as directed.

Returning, filling in, including spreading levelling watering and well ramming in layers not exceeding 25 cm as in soft/loose soil complete all as specified and as directed.

Removing excavated soil to a distance not exceeding 50 m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and as directed.

M&L for sand cushioning for under ground cable with locally available sand for protection of cable 8cm before laying cable and 15cm deep over the cable including spreading and consolidation complete all as specified and as directed. Note:-Punned thickness shall be measured for payment purpose.

Supply & laying sub class 'B' bricks (old size) as in cable protection complete all as specified and as directed.

Taking down existing unserviceable XLPE HT cable of size 95 to 120 Sqmm 3 core from trench or on pole etc as decided by Engineer-in-Charge complete all as specified and as directed.

Supply, laying and testing of XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable, heavy duty with aluminium conductor 11000 volts grade,Earthed conforming to IS :7098(part II) cross sectional area 95 sqmm 3 core complete all as specified and as directed.

Supply, laying and testing of XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cable, heavy duty with aluminium conductor 11000 volts grade,Earthed conforming to IS :7098(part II) cross sectional area 120 sqmm 3 core complete all as specified and as directed.

S&F in replacement of cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

S&F in replacement of cable jointing kit for 11 KV (earthed) grade cable for indoor termination cold shrinkable joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm complete all as specified and as directed.

S&F in replacement of cable jointing kit for 11 KV (Earthed) grade cable for indoor termination cold shrinkable joint complete with jointing material and accessories suitable for 120 Sqmm 3 core XLPE armoured aluminium conductor cable complete all as specified and as directed.

S&F in replacement of cable jointing kit for 11 KV (earthed) grade cable for straight through heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm complete all as specified and as directed.

M&L for painting of transformer capacity upto 250 to 400 KVA with two coats of approved synthetic enamel paint with spray gun over a coat of red oxide primer including filling putty in cavaties and preparation of old painted surfaces complete all as specified and directed.

M&L for maintenance of 2 pole structure and taking out all old connection/jumpers and fixing fresh jumpers with proper lugs nut/bolts and tightening all incoming and outgoing connection, properly winging with conductor including servicing/greasing of existing GODs and testing for smooth operation and proper alingment of contacts including replacement of defective part of fixed/moving contact complete all as specified and directed.

S&F in replacement of lightning arrestor suitable for 11 KV grade,expulsion type, complete with all fitting transmission class for outdoor discharge capacity 65KA, complete all as specified and as directed.

M&L danger notice plate for HT 25cm x 20cm x 1.5mm thick mild steel sheet,vitreous enameled white with letters,figures and conventional skull and bones in signal red colour and fixed with MS clamps,bolts and nuts, complete all as specified and as directed.

S & F in replacement of MCCB 4 pole 415 Volt, 50 Hz, 400 Amps with breaking capacity 36 KA adjustable, theremal magnetic release type complete all as specified and as directed.

S&F of 50 mm dia galvanized iron tube light grade for cable protection along poles, laid plinth protections or road crossing or in trenches or in footpath with necessary fittings complete all as specified and as directed.

S&Fof 80 mm dia galvanized iron tube light grade for cable protection along poles, laid plinth protections or road crossing or in trenches or in footpath with necessary fittings complete all as specified and as directed.

M&L for Boring of holes under road, pavement, hard standing by trenchless technology for laying or passing of HT cables by mechanical means using ultra sounding technique in roads/hard standing complete all as srecified and as directed.

S & F in replacement of MCCB 4 pole 415 Volt, 50 Hz, 250 Amps with breaking capacity 36 KA adjustable, theremal magnetic release complete all as specified and as directed.

S&F in replacement of power contactor 4 pole, 415 volts, 700 amps coil operating voltage 230 Volt AC complete all as specified and as directed. Make:- Indoasian / L & T model MCX-46 or equivalent as approved.

S&F in replacement of phase indication lamp LED type for LT/HT panels in three colours (R,Y,B) complete all as specified and as dirtected.

Supply and replacing silica gel in crystal form of breather assembly of transformer 11/0.433 KV of capacity 250-400 KVA at installed site complete all as specified and as directed.

Supply only in replacement ceramic Bush insulator on LT side as per existing size,shape and specification for capacity 250-400 KVA, transformer complete all as specified and as directed

Supply only in replacement ceramic Bush insulator on HT side as per existing size,shape and specification for capacity 250 to 400 KVA, transformer complete all as specified and as directed

M&L for 2.5mm thick rubber mat, ISI marked (electrical insulation mat) of size 1m X 2m for voltage upto 11 KV complete all as specifed and as directed. Make: - Jyoti or equivalent as approved.

Disconnecting of all electrical connection and opening of Automatic Servo voltage stabilizer, three phase, balanced load 300-480 volts and derive volts 400-440 volts, + 1.5 Volts, oil cooled, indoor type of capacity 400 KVA of Sinetrac make for repair /servicing and cleaning of parts and repairing the faults, re-assembling after replacement of following unserviceable/defective, worn out parts with new parts of same make / type / capacity reassembling , commissioning and testing on load complete all as specified and as directed. Note:- Old unserviceable parts required to be replaced shall be measured and paid under respective item separately.

Supply only Elecronic cards (PCB) .

Supply only Motor 10 Kg .cm torque

Supply only Gear and dimmer arms suitable for 400 KVA voltage stabilizer

Supply only RC network circuit for motor

Supply only Protection alarm circuit incorporation with features of high & low voltage,overload, single phasing, phase reversal protection etc.

Supply only Sensing trigger transformer .

Supply only Control switch suitable for 400KVA voltage stabilizer

Supply only By pass changeover switch of capacity 630 Amps 4 pole.

Earthing complete with galvanized steel earth plate electrode 60cmx60cmx6mmthick, buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edged of the plate not less than 1.5 m below ground level connected to galvanised iron earth strip of size 32mmx6mm by means of bolt, nuts, check nuts and washer of galvansed iron or steel, protected by galvanised iron pipe of 40 mm bore medium grade including funnel, 20mm dia bore galvanised iron pipe medium grade for watering, wire mesh, adequate quantity of charcoal dust and common salt in alternative layers all around the earth electrode compacted thickness 15 cm including excavation and earth work in soft/loose soil, PCC 1:3:6 type C-1 using 20 mm graded aggregate as in chamber, 50 mm thick RCC 1:2:4 type B-1 using 20 mm graded stone aggregate as in cover reinforced with 8 mm TMT bar @100 mm C/C complete and testing on completion complete all as shown in electrical plate No. 3 of MES SSR Part-I 2009. Note :- Cost of earth strip and GI protection pipe up to a distance 7.5 metre shall be included in the quoted rate.

Dehydration / filteration of transformer oil by means of centrifugal filteration plant to achieve the specified dielectric strength 50 KV at 2.5 mm gap in existing position of transformer of any capacity at various sub station complete all as specified and as directed. Note:- Cetrifusing machine shall be arranged by the contractor under his own arrangement as per requirement decided by Engineer-in-Charge.

Supply only transformer oil of approved quality as per IS No : 335-1993 low viscosity type having dielectric strenght of 60 KV in 2.5 mm gap for toping up complete all as specified and directed.

Surface dressing for area cleaning at Sub Stations including removing herbs,shurbs , grass, removing bricks bats complete all as specified and as directed.

M&L for painting of Automatic Servo voltage stabilizer, three phase, indoor type of capacity 400 KVA with two coats of synthetic enamel paint with spray gun including filling putty in cavaties at site including preparation of old painted surfaces complete all as specified and as directed.