Increasing Capacity of 33/11 KV Sub-Station Leharpur Rural Sitapur existing from 1x5 Plus 1x10 MVA to 2x10 MVA

Amount

Safe loading, carriage and unloading & proper stacking of following store materials from any Electy. Store of Lucknow Zone to 33/11 KV S/S Laherpur Rural, Sitapur site (work site).

33 KV Lightening Arrester

11 KV 3x300 SQ MM XLPE

MS Channel 125x65mm

MS Angles 75x75x6mm

ACSR Panther Conductor

90 Lbs Rail

MS Channel 100x50 mm

11 KV 3x300 SQ MM XLPE Cable Outdoor jointing Kit

11 KV 3x300 SQ MM XLPE Cable Indoor jointing Kit

PVC cable1x400 sq. mm.

Dismantling & safe shifting of existing & working 33/11 KV 05 MVA T/F from plinth to suitable storage place after opening jumper and cable connections as per instruction of Site Engineer.

Repairing and extension of Power Transformer Plinth of size 3.46 x4.46 Mtr for 10 MVA T/F having 0.4 Mtr. above ground level. The work includes excavation of foundation, base concretion of CC 1:4:8 ratio (cement, fine sand & brick ballast) first class brick work in cement morter of rtio1:4 foundation CC in 1:4:8 ratio(cement, find sand & brick ballast) and RCC work in ratio 1:2:4 (cement, coarse sand and stone grit of 20mm gauge using MS bar of 10mm dia(tor) in reinforcement including its cutting, bending & binding in required shape. The work also includes laying of 2 No. 3.46 mtr. long rail pieces complete with cutting, welding & proper fitting etc. The plinth will be made as per drawing and shall be plastered/ finished on top and sides of the plinth.

Dismentaling of old and damaged Fuse Set Structure with Fuse Set (3 Nos.)

Fabrication, Errection & Grouting of Substation Structure:

Fuse Set Structure : Fabrication of Fuse Set Structure 3.5 mtr. in height as per Drg. digging of two no pits of size 1.075x0.9x0.3 mtr. providing stone pad at the bottom of the pit and grouting of two legs of the Structure in CC(cement coarse sand and stone grit of 20mm gauge) of the ratio 1:4:8 in block of 1.075x0.3 mtr. including all civil material, T&P complete in all respect. The work includes dragging, shifting up to 40 Mtr., raising and erecting the two legs with runner on proper alignment and level and plumb. Both plinths of the structure shall be properly finished with smoothing of edges.

Earthing for power T/F by way of boring and lowering of 40mm dia, 2.9 mm thick GI Pipe B class from ground upto the water level (minimum 60 feet deep) as per standard practice as per RESPO/REC Drg with making of earth pit of 300x300 mm & 1 feet deep with Cover. (All materials to be provided by Contractor).

Fabrication and grouting (1:4:8) of MS Channel 100x50mm in L Shape & in proper size and alignment to provide support through GI earthing strips (50x6)mm size for power transformer neutral including supply & fixing of flexible copper bonds for neutral earthing as per RESPO Drg. (All decentralised materials to be provided by Contractor).

Fabrication and erection of cable support made of two pieces of MS channel 100x50mm, 3.0 mtr. long joined to each other by means of 5 no. MS Flat 50x6mm pieces of size 150mm long each by welding at equal intervals as per drawing and grouting in block of size 300x300x700mm (1:4:8) complete. This includes providing of required MS Clamp made of MS Flat holding the cable including nuts & bolts and fixing of XLPE cable.

Installation of Lightening Arrestors : Assembling, installation & mounting of 3 No.(1set) L.A. on the L.A Structure/complete with making earth connections (separate) with GI Strip 50x6mm. The work includes fabrication for fixing if required. (All decentralised materials to be provided by Contractor).

Installation of Fuse Set: Installation of 3 Nos.(1 Set) Fuse Set on the Fuse Set Structure .The work includes fabrication, proper fixing of Fuse Set with making earth connections(Earth Mat/earthing) with GI Strip 50x6mm and control wiring connection, proper commissioning & testing.(All decentralised materials to be provided by Contractor).

Painting of all structures and equipments with good quality ISI Mark one coat of red oxide primer & two coats of Aluminium Paint. (All materials to be provided by Contractor).

HT Cable Laying :

Laying & dressing of 11KV 3x300 Sq.mm XLPE cable from 5MVA T/F to 11KV incoming Switchgear by excavation of trench in the ground of size 450mm wide, 900mm deep providing 150mm fine sand cushion below the cable. The cable shall be duly protected by bricks, sand & stone slab and refilling & ramming of the left out soil. Spare cable shall be left and buried in the trench in the shape of rings at both ends. Cable laying work includes unrolling, cutting, making ring and sealing both ends of the cable. (All decentralised materials to be provided by Contractor).

Hoisting of 11KV XLPE Cable for 11 KV switchgears & 33/11KV T/F of requried size.

Dismentaling of old existing 33 KV bus bar on ACSR Dog conductor and making of new 33 KV Bus bar by ACSR Panther Conductor with complete fitting (like as PG clamps, Disc Fitting, etc and making vertical/horizontal jumper connections using Panther/Dog Conductor with existing busbar gantry through PG Clamps and connecting all equipments with each other through connecting clamps. The work includes all the jumpers from busbar to T/Fs. (All Fitting Clamps, PG Connector etc. to be provided by Contractor).

Supply and laying of following size Copper Control Cable through underground/cable trench/trenching SGR interlinking through proper connections to T/F Control panel/protection board/Battery and Battery Charger/Bunch joints, Relay 33/11KV T/F junction Box/33KV VCB, CTs etc. as per site conditions:

4x2.5 Sq.mm

Supply and fixing of Control Cable Trey

Fixing of Single Core PVC Cable, 1x240/400/630 sq.mm. & fixing between Transformer incoming 3x300 Sq.mm XLPE Cable and Transformer 11 KV/LV Side Bushing connector for reducing of tension at LV Side Bushing.

M/S AARADHYA AND ADHYATM ASSOCIATES