Provision of Power Supply with 11KV Plinth mounted Substation and allied works for CISF Barrack at Tirupati Airport

Amount

Supply, erection of 2 Nos. of 200 x 100 mm RS Joist pole and length of Joist 9150 mm for 11KV D.P. Structure with I Beam welded MS plates to hold insulator, channels to install material as required, clamps, nuts and bolts for assembly of equipments etc. in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) foundation including excavation and refilling etc. as required.

Supply and erection of channel iron 100 mm X 50 mm X 6 mm (9.56 kg per metre) cross arm for three wire 11 KV over head line conductors complete with 50 mm X 50 mm X 6 mm angle iron bracket welded to the channel iron and complete with 50 mm X 6mm M.S. flat iron clamps, bolts and nuts including drilling holes for insulator pins/ fittings, bolts, nuts, washers etc and painting with primer and finish paint as required .

Supply and Erection of 2 no's (two lengths) of channel iron 100 mm X 50 mm X 6 mm (9.56 kg per metre) double pole cross arm for three wire 11 KV over head line conductors complete with through bolts and nuts for clamping to the poles, 50 mm X 6 mm M.S. flats welded on one side to the channel iron and with bolts and nuts on the other side for tying the cross arms together, including drilling holes for insulator pins/ fittings, bolts, nuts, washers etc and painting with primer and finish paint as required

Supply, erection & commissioning of 11 kV, 200 A, 3 -pole, horizontal Gang operated Air Break switch complete with pin insulators, operating rod, handle, locking arrangement with coil or spring loaded etc. as required

Supply and erection of 11 KV Polymer disc insulator for 11 KV over head lines with galvanised insulator fittings, ball and socket type and complete with galvanised strain clamps, bolts, nuts, washers etc. as required.

Supply and erection of 11 KV Post type insulator complete with large steel head G.I. pin, nuts, washers etc. as required.

Supplying and erection of three piece 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 galvanised clamping arrangement, G.I. bolts, nuts, washers etc. as required.

Supply, erection & commissioning of 11 kV, 200 A, heavy duty horn gap fuse, complete with mounting arrangement, post insulators, GI hardwares etc. as required.

Supply and erection of galvanised stay set for 11 KV over head lines complete with 19/ 20 mm dia X 1.8 metres long stay rod, anchor plate of size 45 cm X 45 cm X 7.5 mm thick, thimble, stay clamps, turn buckle ( 20 mm X 600 mm ), 7/ 4.00 mm dia G.I. stay wire and 11 KV strain insulator etc in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size ) foundation including excavation and refilling etc. as required.

Supply and erection of No. 0 (Zero) size Copper Jumpering with MS 'L' angles and hard wares for LAs, AB switch, HG Fuse and up to outdoor transformer, etc, complete as required.

Supply, erection & commissioning of 11 kV, AAA conductor for stringing between DISCOM (source) to AAI Double pole structure including necessary harware and complete as required.

Supply, installation, Testing & Commissioning of 160 KVA, 11/0.433KV, 3 phase, 50Hz, Dyn11, Outdoor, ONAN type copper wound transformer with OFF load tap changing arrangement on HV side in steps of +/-2.5% in the range of +5% to -10%, having bushings on HV side for termination of jumpers and cable end box on LV side suitable for 3.5x400 Sq.mm XLPE cable of 1.1KV grade complete with all accessories i/c first filling of filtered dehydrated oil and conforming to IS 2026 (Part 1 to Part 5) & as per technical specification attached in all respects as required at site (Note: The scope covers installation of transformer on the existing plinth near DP structure).

Construction of plinth for outdoor transformer with RR masonary foundation and 100 mm RCC top i/c excavation as per technical specification and attached drawing including white wall primer etc., as required.

Fabrication, S.I.T.C of Outdoor MV Feeder Pillar Panel with double door arrangement made out of 2mm CRCA sheet steel for outer sheet covering and 1.6mm CRCA sheet steel for inner sheet door and partition, dust tight, vermin proof, totally enclosed, cubicle type with top canopy for rain protection, floor mounting, free standing, suitable for operation at 433 V, 3 phase, 4 wire, 50 Hz, AC Power Supply System complete with all accessories, interconnection, earthing, painting, grouting, providing suitable size foundation upto the height of 600mm above the ground level, Cable Entry provision etc. as required and comprising of following: INCOMER: a) 1 No. 630Amp, four pole, Moulded Case Circuit Breaker (Ics value 35 KA) with extended operating Handle. BUSBARS: a) 800 Amp TPN busbars of high conductivity electrolytic quality aluminium alloy. INSTRUMENTS & ACCESSORIES: a) 1 No. digital multifunction meter (V,A,F,KW,KWH) including suitable rating CTs for 3 phase, 4 wire operation as per specification. b) 1 Sets of RYB phase indicating lamps controlled by 2 amp MCB. c) 1 No. Earth fault relay. d) 1 Set of ON/OFF/TRIP indicating lamps. OUTGOING: a) 1 No. 400Amp, four pole, Moulded Case Circuit Breaker (Ics value 35 KA) with extended operating Handle and 1 No. digital Ammeter including suitable rating CTs. b) 3 Nos. 250Amp, four pole, Moulded Case Circuit Breaker (Ics value 35 KA) with extended operating Handle and 1 No. digital Ammeter including suitable rating CTs.

Supply of following size XLPE insulated and PVC sheathed Aluminium conductor armoured power cable of 1.1KV grade confirming to relevant IS 7098 Part-1 with upto date amendments.

3.5 core X 185 mm²

3.5 core X 400 mm²

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

Above 95 sq. mm and upto 185 sq. mm

Above 185 sq. mm and upto 400 sq. mm

Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size in the existing masonry open duct as required.

Above 95 sq. mm and upto 185 sq. mm

Supplying and making end termination with brass compression gland and aluminium lugs for following size of PVC insulated and PVC sheathed / XLPE aluminium conductor cable of 1.1 KV grade as required

3½ X 185 sq. mm (57mm)

3½ X 400 sq. mm (82mm)

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Earthing with G.I. earth plate 600 mm X 600 mm X 6.0 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required

Providing and fixing 25 mm X 5 mm copper strip in 40 mm dia G.I. pipe from earth electrode including connection with brass nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required.

Providing of nominal 2.0 mm thick Synthetic insulation mat to withstand dielectric strength of 30KV a.c (rms) conforming to IS 15652:2006 with upto date amendment including pasting the mat with suitable adhesive and as required

Providing of nominal 2.5 mm thick Synthetic insulation mat to withstand dielectric strength of 45KV a.c (rms) conforming to IS 15652:2006 with upto date amendment including pasting the mat with suitable adhesive and as required.

Supplying of Rubber hand gloves suitable for 11 kV.

Supplying and fixing of Shock treatment chart both in Regional, Hindi & English.and framed with 5mm thick glass as required.

Supply & fixing HT danger notice plate of 250 mm x 200mm, made of mild steel sheet of at least 2mm thick & vitreous enamelled white on both sides and with inscription in signal red colour on front side as required. (11 kV)

Supply & fixing MV danger notice plate of 200 mm x 150mm, made of mild steel sheet of at least 2mm thick & vitreous enamelled white on both sides and with inscription in signal red colour on front side as required.

Providing and fixing carbon dioxide (CO2) type fire extinguishers confirming to IS 2878-1976 and cylinders fully charged of following capacity. (a) 4.5KG

Supply and fixing of foam fire extinguishers, Portable type 9 litre capacity hanged on wall with bracket complete as required.

Providing of set of 4 Nos. 9.0 Litre capacity MS bucket painted in post office red colour with prior coat of red oxide paint and written with white paint ‘FIRE’ and mounted on MS angle iron frame with bracket of appropriate size & capacity with suitable canopy i/c filling sand etc. as required.

Charges for Liasioning of CEA approval for energization of Electrical installations including preparation of drawings and other documentation and inspection charges etc.

KALKI ELECTRICALS

CHENNAI ENGINEERING SERVICES