Day to day breakdown maintenance of EB power supply system in different small TE BTS under Muzaffarpur BA.

Attending to break down calls, physical inspection of Substation accessories, overhead lines, feeder panels, meter box etc. to find out the faults and taking corrective measures for restoration of power supply in coordination with supply authority etc. as required.

Transportation charges for frequent visit to different units of the supply authority i.e. Field units, MRT units, Division office etc. for obtaining shut down of 11KV line, breaking of meter seal if required to carry out the major repairing and maintenance works of the Transformer substation/replacement/rewinding and re-installation of the repaired Transformer, re-energisation, testing and re-commissioning etc. as required.

Thorough servicing of AB Switch, adjustment of bearings, male/female contacts, lubricating of moving items i/c replacement of minor defective parts like nuts, bolts, clamps, wire braided copper strips and checking the functional operation, etc. as required.

Operating Handle made of 25/32mm Medium class GI pipe with wire braided copper strip

Heavy duty operating pipe for air break switch i/c fabrication etc. as required.

Replacement of faulty/damaged pin insulators by new one of 11 KV grade pin type insulator with large steel head G.I. pin, nuts, washers on existing HT pole/ DP structure etc. complete as required.

Replacement of faulty/damaged disc insulators by new one of 11 KV, 45 KN porcelain disc insulator with galvanized insulator fittings, ball and socket type and complete with galvanized strain clamps, bolts, nuts, washers etc. as required.

Replacement of faulty Lightening arrestors by new ones of nonlinear resistor type lightning arrestor suitable for 3 wire, 11 KV overhead lines with rated voltage 9 KV (rms) with a nominal discharge current rating of 5 KA and complete with galvanized clamping arrangement, G.I. bolts, nuts, washers etc. as required, comprising of 3nos per set.

Replacement of damaged and unserviceable AB switch by new one of 11 KV, off load, single break, triple pole, horizontal type, gang operated air break switch having 2 nos. 11 KV post type insulator per phase complete with galvanized channel iron base, arcing horns, 25 mm dia. 6mtr. long GI pipe, tinned copper wire braided flexible earthing wire & operating handle with locking arrangement etc. complete as required.

Supplying & laying of 30sqmm ACSR weasel conductor for drawing of 11KV overhead line/interconnection of all insulators, gang operator ari break switch etc as reqd

Replacement of faulty/burnt out HT cable by supply of new 3 core, 50sqmm HT XLPE insulated Cable of 6.6 KV (UE)/11KV (E), Stranded compact circular aluminium conductor, conductor screen with extruded semiconducting compound, XLPE insulated, insulation screening with extruded semi conducting compound in combination with copper tape (0.3 KA for 1 sec), cores laid up, inner sheath of PVC tape, galvanized flat steel strip armoured and overall PVC sheathed confirming to IS 7098/PART-II-1985 with latest amendments.

Supplying & laying of 3x50 sqmm Airial Bunch Cable of 11 KV alonwith one no 35 sqmm bare messenger with support of suitable size and no. of clamp and hooks, Conforming to IS: 7098 / (Part-II) with the Latest Amendments i/c testing etc complete as reqd.

Direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required.

In the existing RCC/ HUME/ METAL pipe as required.

On air i/c supply & binding with 1no 55sqmm AAA Conductor.

Replacement of faulty 11KV outdoor type cable end terminations by new one of heat shrinkable type complete with all accessories including lugs suitable for 3 core, 50 sqmm, XLPE aluminium conductor cable of 11 KV grade as required.

Replacement of faulty/burnt out straight through cable joints by new one of outdoor type heat shrinkable type complete with all accessories including lugs suitable for 3 core, 50 sqmm, XLPE aluminium conductor cable of 11 KV grade as required.

Rewiring of the DP structure of Transformer Sub Station with 55sqmm AAA /50sqmm insulated Al.conductor stranded cable with al. Lugs/sockets, binding with post insulators etc. complete as required.

4 core 16 sqmm

4 core 25 sqmm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size Up to 35sqmm direct in ground including excavation and refilling the trench etc as required, but excluding sand cushioning and protective covering.

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size Up to 35sqmm in the existing RCC/ HUME/ METAL pipe as required.

Laying and fixing of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size Up to 35 sq. mm (clamped with 1mm thick saddle) on wall surface as required.

4 X 16 sq. mm (28mm)

4 X 25 sq. mm (28mm)

16/25 sqmm Al socket.

63A, TPN, Switch Fuse Unit in sheet steel enclosure with 3 nos porcelain fuse links & neutral link (ISI marked & Approved amke of BSNL)

63Amp 4-pole on load change over switch in sheet steel enclosure , front handle type (ISI marked & Approved amke of BSNL).

63Amps 415 volts 4 pole MCB Isolator

6-32A SP MCB (Class-C)

16/25 KVA, 11KV/0.415KV, 50 Hz Aluminium wound oil cooled Transformer

40/63 KVA, 11KV/0.415KV, 50 Hz Aluminium/Copper wound oil cooled Transformer

16/25 KVA, 11KV/0.415KV, 50 Hz Aluminium wound LT Coil

16/25 KVA, 11KV/0.415KV, 50 Hz Aluminium wound HT COIL

40/63 KVA, 11KV/0.415KV, 50 Hz Aluminium wound LT coil

40/63 KVA, 11KV/0.415KV, 50 Hz Aluminium wound HT COIL

40/63 KVA, 11KV/0.415KV, 50 Hz Copper wound LT COIL

40/63 KVA, 11KV/0.415KV, 50 Hz Copper wound HT COIL

Supplying and pouring of transformer oil (IS:325) of suitable make & grade for topping up/replacement of old deteriorated oil etc. complete as required.

HV Bushings

LV Bushings

Distance up to and including 120 KMs (Up and Down)

Supplying of RCC/PCC pole of weight not less than 200Kg for a length of more than 8.0mtrs having a suitablebase width & tapering for bearing ultimate weight of 500Kg complying to the load bearing test as per IS specification i/c transportation up to the site as reqd.

Erection of RCC/ PCC /PSC pole of length above 8.0 meter directly in ground including excavation and refilling etc. as required.

Supplying & erection of galvanized stay for 11KV overhead line complete with 19/20mm dia x1.8mtrs long stay rod anchor plate of size 450mmx450mmx7.5mm thcik, thimble, stay clams, turn buckle (20mmx600mm), 7/4mm dia G.I stay wire and 11KV strain insulator etc. in cement concrete 1:3:6(1cement:3coarse sand ; 6 graded stone aggregate 40mm nominal size) foundation including excavation and refilling etc complete etc as reqd

Supplying and fixing 40 mm dia class-B (Mediaum) ISI marked G.I. pipe for protection of under ground cable as required.

CHANDRA BHUSAN ELECTRONICS

Gupta Electricals

Vaishali Electrical Enterprises