REPAIR /MAINT OF APFC PANEL/ VOLTAGE STABILIZER and OTHER E/M ALLIED AT AF STN JAISALMER

Amount

Excavation in trenches, n exc 1.5m wide and n exc 1.5m in depth , for foundation, etc or for shafts, wells, cesspits, manholes, pier holes, laying of cables etc. n exc 10sqm on plan and n exc 1.5m in depth and getting out in any type soil complete all as specified and as directed .

Dry tibba sand cushioning to underground cable provided with a layer of 8cm deep before laying cable and 15cm after laying of cable and punned to 18cm after laying of cable and cover for protection of underground cable complete all as specified and directed. Notes :- (i) Approved dry tibba sand free from vegetation, grass and other deleterious substances shall be used. (ii) For the purpose of payment only punned thickness shall be measured for payment.

Stone patti 40 to 50mm thick rough dressed Jodhpur stone slab cover in trenches for protection of cable 25 to 35cm wide and not less than 60cm in length laid dry abutting each other with gap between adjacent slab not exceeding 10mm over sand cushioning complete all as specified and directed.

Removing surplus soil to a distance n.exc 50m and depositing where directed at a level n.exc 1.5m above the starting point complete all as specified and as directed .

Returning, filling in , including spreading, leveling, watering and well ramming in layers each n.exc 25cm complete all as specified and as directed .

Plain cement concrete (1:2:4) type B-1 (using 20mm graded stone aggregate) in lintel, cill, bed block coping ,bed plate, bond stone etc including weathering slightly rounded or chamfered angles and throating and necessary form work complete all as specified and directed .

Earthing complete with galvanished earth plate electrode 60cm x 60cm x 6mm thick burried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of plate not less than 1.5 deep below normal ground level and connected to galvanished iron earth lead strip 32mmx6mm upto 7.50 metre, by means of GI nuts, bolt, check nuts, washers, thimbles, etc as shown in electrical plate No. 5 SSR Part-I and connection to main switch board or panel and testing on completion including excavation and earth work in any type to soil, returning fitting in and removal of surface spoil to a distance not exceeding 50 metre, PCC chamber (1:2:4) type B-1, charcoal and salt mixed layer 15cm thick all around the earth plate electrode, MS funnel with wire mesh, 20mm bore, Galvanised Iron pipe light grade, 1.50 metre long for watering and 40mm bore Galvanised Iron pipe light grade for earth lead protection 5.00 metre long fixed with poles with two clamps, made from earth lead strip 32mm x 6mm, bolts, nuts and washers, 80mm thick pre cast RCC cover 1:2:4, type B-1, reinforced with hard drawn steel wire fabric wieghing not less than 4 Kg/Sqm in lieu of CI cover etc including dismantling & taking out old unserviceable earthing complete all as specified & as directed. Note : (i) Excavation and earth work for drilling hole for electrode in any type of soil and testing of earthing shall be included in this item. (ii) The unit rate shall be deemed to included for Test Point, 32mmx6mm GI strip from top of the earth plate upto 7.50m above ground level. In case, GI protection pipe required is less than 7.50m, no price adjustment shall be made. (iii) PCC Pit shall be provided at least 500mm away from the earth pit and not just on the earth pit and extra cost of additional length of water pipes and fittings, junctions, elbow etc shall be deemed to be included in the unit rate quoted by the tenderer.

Supply, laying, jointing and testing XLPE insulated screened PVC bedded, armoured, heavy duty underground electric cable with stranded aluminium conductor 1100 volts grade cross sectional area 25 sq mm 4 core confirming to IS-7098 (Part-I-1988) laid in trenches, along poles through pipes etc. including taking out old unservicable cable complete all as specified. Notes :- (i) Sand cushioning, cable protection, GI pipe and excavation & earth work shall be measured & paid for separately (ii) Road cutting/ floor cutting/ cutting holes etc in walls required for laying/ fixing of cable etc shall be made good as per existing. Nothing extra shall be admissible on this account. Quoted rates shall be inclusive of the above provisions.

All as per SI No 8.00 here-in-before but 35 Sqmm 3.5 core

All as per SI No 8.00 here-in-before but 50 Sqmm 3.5 core

All as per SI No 8.00 here-in-before but 70 Sqmm 3.5 core

All as per SI No 8.00 here-in-before but 300 Sqmm 3.5 core

80 mm bore GI tube, light grade galvanised with clamp of 25 x3 flat iron for protection of cable , with all fitting lead in trenches /under road / with wall /in wall /pole /under floor where required complete all as specified and as directed.

All as per SI No 14.00 here-in-before but 50 mm bore GI tube.

All as per SI No 14.00 here-in-before but 40 mm bore GI tube.

Supply, laying, jointing and testing 1100 volts grade heavy duty cable PVC insulated aluminium solid conductor cable 10 sqmm, twin core, served with inner sheathing of PVC tape and overall PVC sheathed in service connections suspended by insulating hangers not more than 1 meter apart including 4mm suspension wire including taking down old unserviceable cable complete all as specified and directed.

Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32 x 6 mm GI strip including taking down old unserviceable complete all as specified and directed. Note : Nut, bolt and other items included in quoted rate by the tenderer.)

Dismantling of old unservicable bus bar chamber and Design, supply, erection, testing and commissioning of outdoor type LT Bus Bar Chamber box, platform mounted, suitable for 3 phase 4 wire, 415 volts AC supply and having 4 Nos stepped type Aluminium bus bars (32mm x 5mm) for looping & branch connection system .The chamber shall be painted with powder coated paint (Shade : RAL-7032) after 7 tank pre-treatment of surfaces. The bus bar chamber shall be provided with suitable Neoprene rubber gasket to make it completely dust and vermin proof and degree of protection not less than IP-55 and general construction conforming to IS : 13947.The bus bar chamber shall be made out of 3.00mm thick CRCA mild steel sheet and 3.00mm thick gland plate , front door (01 layer) and rear Door (01 layer) opening facility and 4 side slanting canopy type roof on top and mild steel channel (75 MC) base frame at bottom. The bus bar chamber shall be provided with ventilation facility in the form of louvers for better heat dissipation. (Note : The bus bar chamber Box shall be designed in such a way that adequate workable space is made available inside the compartments and the size of the chamber shall not be less than 500mm height (without base frame & canopy), 500mm width and 450mm depth).

MCCB, 3 Pole, 100 Amps rating, rupturing capacity 16 kA, 415 Volt grade, AC, 50 Hz, thermal Magnetic protection unit and connected link and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

MCCB, 4 Pole, 160 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC supply, 50 Hz, thermal Magnetic protection unit and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

MCCB, 4 Pole, 200 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC supply, 50 Hz, thermal Magnetic protection unit and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

MCCB, 4 Pole, 250 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC supply, 50 Hz, thermal Magnetic protection unit and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

MCCB, 4 Pole, 400 Amps rating, rupturing capacity 36 kA, 415 Volt grade, AC supply, 50 Hz, thermal Magnetic protection unit and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

MCCB, 4 Pole, 630 Amps rating, rupturing capacity 50 kA, 415 Volt grade, AC supply, 50 Hz, thermal Magnetic protection unit and making connections using suitable size copper lugs/thimbles and crimping tool, including disconnecting & taking down old unserviceable MCCB, complete all as specified & directed.

Change over switch 200 Amps ON load in sheet enclosure four pole to be fixed on wall with FI 32X6mm, nuts, bolts, washers etc. fixed in repair complete with all electric connection complete all as specified and directed.

Change over switch 315 Amps ON load in sheet enclosure four pole to be fixed on wall with FI 32X6mm, nuts, bolts, washers etc. fixed in repair complete with all electric connection complete all as specified and directed.

Drilling (Horizontally) of holes under road width 110 mm dia , pavement , hard standing by trench less technology ( manually ) with out disturbing the top surface of road (maximum 10 mtr wide) for laying of cable/ GI pipes complete all as specified and as directed .

Cable jointing kit for 1100 Volts grade LT cable for straight through heat shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size 25 sqmm 3.5/4 core to 95 sqmm 3.5 core including dismantling & taking out old unserviceable jointing kit complete all as specified and directed .

Cable jointing kit for 1100 Volts grade LT cable for straight through heat shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size above 95 sqmm 3.5 core to 120 sqmm 3.5 core including dismantling & taking out old unserviceable jointing kit complete all as specified and directed

Cable jointing kit for 1100 Volts grade LT cable for straight through heat shrink type joint complete with jointing material and accessories suitable for XLPE armoured aluminium conductor cable of size above 240 sqmm 3.5 core to 300 sqmm 3.5 core including dismantling & taking out old unserviceable jointing kit complete all as specified and directed

Scrubbing of existing paints of existing LT panel board, LT feeder Pillar boxes, LT bus bar chamber paints of any specification and removing old paints and preparation of surfaces for painting complete and M&L for painting of LT Panels, LT Feeder pillar boxes, LT bus bar chambers internaly and externaly with one coat of superior quality smoke grey paint to achieve fine finishing in and including repairing of complete LT panel by welding of hings, door , including fixing Aldrop/Sliding door bolt with locking arrangement and layout the existing cable in proper manner by necessary excavation work complete all as specified and directed .

Dismantling of old unserviceable doors, back sheets, side sheet of LT panels, bus bar chamber or feeder pillar box installed at various places by cutting/descrewing after making the system disconnected from Elect supply and M&L for fabrication of doors/frames/ partition, bottom sheet by bending hot or cold, making holes, notching, welding of MS black sheet for LT panel board, bus bar chamber, feeder pillar box made out of 2 mm thick mild steel sheet including providing hinges for opening or closing of door, making handles, locking arrangement and painting of sheet both side with superior quality smoke grey paint after applying a coat of red oxide and matching with the existing complete all as specified and directed by the Engr - in-charge at site. Note : The cost of disconnecting of LT cable and earth strip and reconnecting the same after repair work shall be deemed to be inclussive in the unit quoted rates.

Surface cleaning and spreading of new aggreages of size 40mm evenly inside the transformer yard area, and remove the all debris, hard soil upto a depth of 40cm manually with causing damage to the LT/HT under ground cables of any size and in the presence of under ground cable loop carefully clearing the area with out using excavating tools like crow bar, spades, showel etc and depositing excavated earth to a distance not exceeding 50m complete all as specified and directed.

Making earthing pit on existing old earthing where pit is completely damaged including cover 80mm thick pre-cast RCC (1:2:4) type B-1 cover reinforced with hard drawn steel wire fabric weighing not less than 4 Kg/sqm in lieu of CI cover, PCC 1:3:6 type C2 pit/chamber including all necessary excavation and earth work complete all as directed and directed.

Making earthing pit chamber cover on existing old earthing of 80mm thick pre-cast RCC (1:2:4) type B-1 reinforced with hard drawn steel wire fabric weighing not less than 4 Kg/sqm complete all as specified and directed.

Note (i) GA drawing for APFC panel shall be got approved from the Accepting Officer/Engineer-in-charge before manufacturing of APFC panels (ii) PCC plateform of suitable size shall be provided after demolition of existing PCC plateform, The cost of all above shall be demmed to be included in unit quoted rates.

Servo voltage stabilizer auotmatic oil cooled 3 phase 4 wire AC supply servo controlled 440 V, 150-250 KVA unbalanced, carrying out necessary repair work /winding of dimmer as per site requirement, replacement of gasket and spare parts, necessary nuts, bolts and cable connector, if required, Re-winding of dimmer and painting of servo voltage stabilizer as per colour code dircted by Engr-in-charge and carrying out testing after repair work and making fully functional complete and reconnecting of the same electrically after repair work with suitable cable lugs including taking out existing complete all as specified and directed:- Note : Spare parts required for replacement and transformer oil and other related items shall be measured and paid seperately as supply only :

Supply only in repair the following items from 150 KVA to 250 KVA servo voltage stabilizer :

Gear Assembly

Servomotor as per existing

Carbon roller assembly

PCB as per existing

High low voltage cut off

Toggle switch

Control transformer

Indicating lamps complete

Worn out wiring with copper cable including soldering of joints and providing sleaves.

Preston type switch-03 Nos

Limit Microswitch

RC Network

Servo voltage stabilizer auotmatic oil cooled 3 phase 4 wire AC supply servo controlled 440 V, 75 KVA-100 KVA unbalanced, carrying out necessary repair work, replacement of spare parts if required, Re-winding of dimmer and painting of servo voltage stabilizer as per colour code dircted by Engr-in-charge and carrying out testing after repair work and making fully functional complete and reconnecting of the same electrically after repair work with suitable cable lugs including taking out existing complete all as specified and directed:- Note : Spare parts required for replacement and transformer oil and other related items shall be measured and paid seperately as supply only :

Supply only in repair the following items from 75 KVA to 100 KVA servo voltage stabilizer :

Gear Assembly

Servomotor as per existing

Carbon roller assembly

PCB (Contorl Card) with holder as per existing

High low voltage cut off

Toggle switch

Control transformer

Indicating lamps complete

Worn out wiring with copper cable including soldering of joints and providing sleaves.

Preston type switch-03 Nos

Limit Microswitch

RC Network

Servo voltage stabilizer automatic oil cooled 3 phase 4 wire AC supply servo controlled 440 V, 10 KVA-50 KVA unbalanced, carrying out necessary repair work, replacement of spare parts if required, Re-winding of dimmer and painting of servo voltage stabilizer as per colour code dircted by Engr-in-charge and carrying out testing after repair work and making fully functional complete and reconnecting of the same electrically after repair work with suitable cable lugs including taking out existing complete all as specified and directed:- Note : Spare parts required for replacement and transformer oil and other related items shall be measured and paid seperately as supply only .

Supply only in repair the following items from 10 KVA to 50 KVA servo voltage stabilizer :

Gear Assembly

Servomotor as per existing

Carbon roller assembly

PCB as per existing

High low voltage cut off

Toggle switch

Control transformer

Indicating lamps complete

Worn out wiring with copper cable including soldering of joints and providing sleaves.

Preston type switch-03 Nos

Limit Microswitch

RC Network

Supply, filling and topping up new transformer oil, low viscosity type of dielectric strength 35 to 40 KV breaking voltage conforming to IS complete for servo voltage stabilizer in various sub stations under GE (AF) Jaisalmer of capacity up to 250 KVA all as directed. (Make: Savita / Power Oil)

Painting of servo voltage stabilizer of capacity 10 KVA to 160 KVA with two coats of smoke synthetic enamel paint (colour/shed decided by GE) externally after necessary preparation to surfaces including numbering SM/MES No. with white paint, etc complete all as specified and directed.

Supply only suitable size enamelled copper wire coils for servo voltage stabilizer of capacity 10 KVA to 160 KVA complete with insulation, varnishing by vaccum impregnation and baking of coil assembly, etc complete all as specified & directed .

Relaying the same after, jointing or necessary repair work and testing XLPE insulated PVC outer seathed and PVC inner sheath, galvanised steel strips armoured, and reconnecting the cable from over head line and panel suitable for rated voltage of 1100 Volts grade 25 sqmm to 300 sqmm 4/3.5 Core and laid in treches/ducts/pipe or on read/pole all as required and directed at site. Note: excavation and earth work joints will be measured and paid seprately

Anil Builders

GILL ENTERPRISES

M/s Yash Electrical and Maintenance