Dismantling, Shifting, erection, Oil filtration, Testing, re-route the power and control cables of 750kVA, 6.6kV/0.415kV oil immersed Transformer and Supply, Installation, Laying, Testing and Commissioning of an Earth Station at various locations in

SECTION – 1 CIVIL WORKS

Excavation of earth normal soil /gravel areas in the existing cable route depth between min 0.75 m to max 1 meter. And refilling the trench/earth with already excavated earth material, to facilitate removal of cable and disposal of surplus excavated soil and unserviceable material to BMC approved yard.

Dismantling / Demolishing of Concrete floor manually / by mechanical (Breaker machine, etc.) and refilling the trench/earth with already excavated earth material, to facilitate removal of cable and disposal of surplus excavated soil and unserviceable material to BMC approved yard. Note: Nominal concrete 1:4:8 or leaner mix (i/c equivalent design mix)

Taking out existing CC interlocking paver / Saber blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made including and stacking of serviceable material within 50-meterlead as per direction of Engineer-in-Charge. (To facilitate removal of cable)

Laying old cement concrete interlocking paver /Saber blocks of any design/ shape laid in required line, level, curvature, colour and pattern overhand including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge. (Old CC paver blocks shall be supplied by the department free of cost)

Demolishing brick work manually/ by mechanical means including stacking of serviceable material and disposal of surplus excavated soil and unserviceable material to BMC approved yard. A) In cement mortar

MECHANICAL AND ELECTRICAL WORK

Removing/ De-Terminating of end termination with metal compression gland and Aluminium lugs for following size of PVC insulated and PVC sheathed/XLPE Aluminium/Copper conductor control and power cables (HT & LT).

3 C x 300 sq. mm (HT Cable)

4 C x 185 sq.mm (LT Cable)

4 c x 2.5 sq. mm (Control cable)

Removing / De-Terminating of transformer equipment earthing conductor lugs and neutral grounding conductor lugs for following size of PVC insulated multi standard flexible un armoured copper conductor cables. A) 1 c x 300 sq. mm

Removing of Existing laid underground power &control cables and earth conductors, the following sizes of cables to be remove from Existing excavated trenches, cable trays, transformer yard jelly and wall areas. (Cost to be including of incidental civil and any other required tasks for completing the job ).

3 C x 300 sq. mm Aluminium Armoured (HT Cable)

4 C x 185 sq.mm Aluminium Armoured (LT Cable)

4 c x 2.5 sq. mm Copper (Control cable)

1 c x 300 sq. mm Copper Un armoured (Earthing Conductor)

Draining out of oil from the transformer tank, and Re-filling of the oil with filtration and BDV testing after shifting of transformer at new location, (Contractor shall be provided Clean drums for storage during oil draining, refilling work. After completion of said works the contractor shall be taken back the empty drums, Transformer oil tank capacity is 800 Litres).

Dismantling , shifting and Installation of 750 kVA ,6.6 kV /0.433 kV ,50 HZ , 3 Phase indoor ONAN type Transformer from existing location to new location ,the new location is approximately 15 to 20 meters, installation of transformer including incidental civil works required for installation as per given drawing , this includes all necessary rigging work , deployment of handling equipment’s like cranes , etc for positioning the transformer at the designated location (Cost to be including of removing , shifting and Re-fixing all existing detachable accessories of the transformer like (radiators , Explosion vent, etc)if required for this job.

All necessary routine test should be conduct for Good Performance of the Transformer at Site as per IS 2026 before charging of the Transformer (after carrying out above said job).and submission of two copies of the Test Report of the transformer. Note: Any kind of damage incurred during the Execution (dismantling, shifting and re-fixing of transformer parts) of this work, the cost of repairing or replacing the damaged parts, shall be borne by the contractor.

Supplying & fixing of 2 mm thick GI Perforated type cable Trays of Asian /Prefab Engineers make the cable tray shall be fixed to the ceiling/ wall with MS angle support with 35mmx2mm thick GI slotted 'C' channel Patti at an interval of 1 meter / or the MS angle iron fabricated support / anchor fasteners bolt nuts depending upon the location. (The cost to be including of all required fixing accessories of 300 mm width X 62.5 mm depth X 2.0 mm thickness,any incidental civil and any other required tasks for completing the job ). (Note: While laying if any clamps are required or any holes are required in walls/slabs etc. then rates should be included in the laying. The holes in walls/slabs are to be done through special slab cutting machine only).

Laying of PVC insulated and PVC sheathed / XLPE, Armoured / Un-armoured power and control cables of 1.1 KV grade following sizes of cables in existing trenches, cable trays, wall areas. (Cost to be including of incidental civil and any other required tasks for completing the job ). Note: Cable laying will involve multiple runs as per the direction of the Engineer in-charge.

4 C x 185 sq.mm Aluminium Armoured (LT Cable)

4 C x 2.5 sq. mm Copper (Control cable)

4C x 300Sq.mm Aluminium Armoured XLPE cable

Supply of 11 kV grade ,3 core XLPE insulated, and overall sheathed, stranded aluminium conductor, flat steel strip/wire armoured cable conforming to IS:7098 Part – 2 (with latest amendments) and for following size. the cable shell be ISI certified mark. A) 3 C X 300 Sqmm Al Ar (HT Cable)

Laying of PVC insulated and PVC sheathed / XLPE, Armoured / Un-armoured power cable of 6.6 KV grade following size of cable in existing trenches, cable trays, wall areas. (Cost to be including of incidental civil and any other required tasks for completing the job ). A) 3C X 300 Sq.mm Al Ar XLPE HT Cable.

Supply, Glanding and Termination of PVC insulated and sheathed/XLPE armoured Copper/ Aluminium Conductor cable through heavy duty brass gland, and heavy-duty Copper lugs complete with cable size marker and dressing of cable in cable trenches Re-route of cables etc. of following sizes. (Note: Cost to be including of glands and lugs and other required accessories for completing Glanding and termination job)

4C X 185 Sq.mm Aluminium Armoured LT Cable

4C X 2.5 sq.mm Copper Armoured control cable

Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for following size of 3 core, XLPE Aluminium conductor cable of 6.6 KV grade as required: Note: Cost to be including of lugs and other required accessories of C Clamps, etc. A) 3C X 300 sq.mm Aluminium for HT Cable (at Transformer HT bushing side)

Supplying and making straight through cable jointing with heat shrinkable jointing kit complete with all accessories including ferrules suitable for following size of 3 core, XLPE aluminium conductor cable of 6.6 KV grade as required: A) 3CX 300 mm2Aluminium for HT Cable.

Providing labour, material, and equipment’s for structural steel work at all level including supplying cutting, fabricating welding, erecting and fixing in position for concrete tranches including painting with primer of approved steel primer also includes cutting edge concrete grounding MS angle fastening.

Structure steel works at all levels in MS plain and chequered plates including, Supply, Cutting, fabricating, welding, erecting and fixing in position including painting with primer coat of approved steel primer Notes: Welding weights connection bolts, and nuts shall not be measured for payment but the cost of which shall be deemed been included in the rate.

SECTION – 2

Excavation, Supply, Installation, Testing and Commissioning of Plate Electrode Earth Station as per IS 3043 at a depth of not less than 2.5 metres. With smooth surface tinned Electrolytic Copper Plate of size 600x600x6 mm and with salt, charcoal other accessories and complete with brick masonry and PCC chamber with heavy duty C.I. cover, funnel, 25 mm `C’ Class G.I. pipe (for watering) and tinned Copper earthing bus of size 50x6 mm as per drawing. All other ACCESSORIES are Supply items of the contractor. (Cost to be including of testing of Soil resistivity) Charcoal: 80 Kg. /Earthing station Salt: 80 Kg/earthing station

Excavation, Supply, installation, testing and Commissioning of Plate Electrode Earth Station as per IS 3043 at a depth of not less than 2.5 mtrs. With smooth surface tinned Electrolytic Copper Plate of size 600 x 600 x 8 mm and with salt, charcoal other accessories and complete with brick masonry and PCC chamber with heavy duty C.I. cover, funnel, 25 mm `C’ Class G.I. pipe (for watering) and tinned Copper earthing bus of size 50 x 6 mm as per drawing. (Note: Only 23 nos of copper plates (600 mm X 600 mm X 8 mm), connecting strips (50mm X 6mm) will be supplied by TIFR at store.)All other ACCESSORIES are Supply items of the contractor. (cost to be including of testing of Soil resistivity) Charcoal: 80 Kg./earthing station Salt: 80 Kg/earthing station

Supply and termination of Heavy-duty Copper solder / brazing type lugs. (The solder/brazing of copper lugs to be done properly) in the following size and complete as per IS 1255 -1983. (Cost to be including of heavy duty Copper solder / brazing type lugs etc.) A) 1 C X 300 Sq.mm Copper Earth Conductor

Laying and testing of PVC insulated, multi standard, un armoured copper conductor in the following size, The scope of works includes laying the cable in existing excavated ground, tranches, cable trays, and on walls, including clamping and other incidental civil works. complete as per IS 7098 - Part 1 - 1983. (Cost to be including of clamps, saddles, Sand cushioning, protective covering, cable tag, and etc.) Note: Cable laying will involve multiple runs as per the direction of the Engineer in-charge. A) 1 C X 300 Sq.mm Copper Earth Conductor

Laying / installation / Fixing / termination of Copper stripes/wire on Insulator/Saddles on wall/ground with Required Support at different substation location max. Height of the fixing location shell be up to 1 m the ground level. (Size of the earth strip is 50 X 6 mm)

Supplying and fixing cable route marker with 10 cm X 10 cm X 5 mm thick G.I. plate with inscription there on, bolted /welded to 35 mm X 35 mm X 6 mm angle iron, 60 cm long and fixing the same in ground as required.

Excavation of earth in the ORDINARY SOIL to form a trench up to a max. depth of (0.75 m, width 0.5 m) and refilling the trench with already Excavated earth material, to facilitate laying / removal of cable. After closing the trench, the cable route marker to be erected on the cable route with regular intervals according to the advice of Engineer in charge, and disposal of surplus excavated soil and unserviceable material to BMC approved yard.

Dismantling / Demolishing of Concrete Road manually / by mechanical (Breaker machine, etc.) means including disposal of surplus excavated soil and unserviceable material to BMC approved yard. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix).

Providing and laying in position cement concrete (PCC) of specified grade including the cost of centring and shuttering - All work up to plinth level: 1:2:4 (1 cement: 2 coarse sand (zone-III) derived from natural sources: 4 graded stone aggregate 20 mm nominal size derived from natural sources) Note: Cost to including of shoring and dewatering, if necessary while excavating and refilling of trench / Earth.

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, ramming of bottoms, depth up to 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc and disposal of surplus excavated soil and unserviceable material to BMC approved yard.

Providing and laying non – pressure NP 2 class (light duty R.C.C pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement; 2 fine 300 mm. diameter)

Providing and laying in position specified grade of Reinforced cement concrete, including the cost of centring, shuttering, finishing and Reinforcement - All work up to plinth level: 1:1.5:3 (1 cement: 1.5 coarse sand (zone-III) derived from natural sources: 3 graded stone aggregate 20 mm nominal size derived from natural sources)

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete up to plinth level. A) Thermo-Mechanically Treated bars of grade Fe-500D or more.

Brick work with common burnt clay F.P.S. (non-modular) bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:4 (1 cement: 4 coarse sand) (Note: Brick wall thickness is 20 cm) Note: Precast Slab to be made ready and placed over the spun pipe end chambers, chamber, Slab dimensions, brick details and quantity are mentioned in technical specification

Cement plaster (in fine sand): 12 mm cement plaster of mix : 1:4 (1 cement: 4 fine sand)

Supply and fixing of side inlets to the chamber in PVC sleeves 50 mm n.b. including cost of necessary cement mortar 1:4. Note: (Length of Each piece is 50cm, Sleeves has to be fixed to the side of the spun pipe end chamber walls as per engineer in charge Instruction)

SHREEPRASAD ELECTRICALS