WBPWD/EE/N24PRG/ELEC/NIT- 13/22-23.

Amount

Cable Laying:- Supply of 1.1KV grade, XLPE insulated Alu. Arm. Cable of following sizes: [Make: Polycab/ KEI/ Havells/Gloster/RR]. a) 3.5Cx300 sqmm

Laying of one 3.5Cx300 sqmm cable through existing covered masonry trench incl. taking out RC covers, setting them in order, mending good the damages filling the trench with fine dry sand incl. supplying sand

S&F compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of XLPE 4Cx300 sqmm armoured cables

Finishing the end of 3.5Cx300 sqmm XLPE armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials

Feeder Pillar Renovation:- S&F 415V, TPN SFU with sheet steel enclosure on flat iron/angle iron frame on wall/existing feeder pillar box with nuts bolts etc incl. S & F 3 nos. DIN type HRC fuse as per rating of following sizes: a)315A as incomer (Make-L&T/Legrand/Siemens).

b. 160A as outgoing (Make-L&T/Legrand/Siemens).

c. 100A as outgoing (Make-L&T/Legrand/Siemens).

S&F sheet metal (16 SWG) Iron Clad Busbar chambers on angle iron frame on wall, incl. earthing attachment and painting as required – ( As per Drawing no. 470 of PWD Specification Book – May 1991), 415 V, 415 A 4nos Copper bar.

Internal wiring of all incoming & outgoing of above mentioned switches with suitable size of copper wire/bar incl. copper socketting as per direction of EIC

Painting of any steel/ iron surface with no. of coats of paints as given below with ready mixed paint/ primer of approved make and brand incl. preparation of surface by sand paper/emery paper, cleaning etc. for receiving fresh coat of paint. a) 1st coat of aluminium paint over one coat of RO priming. b) 2nd coat of aluminium paint over 1st coat. c) One coat of red lead/Zinc chromate priming d) 1st coat of synthetic enamel paint over the primer. e) 2nd coat of synthetic enamel paint over the 1st coat

Earthing with 50 mm dia GI pipe 3.64 mm thick x 3.04 Mts. long and 1 x 4 SWG GI (Hot Dip) wire (4 Mts. long), 13 mm dia x 80 mm long GI bolts, double nuts, double washers incl. S&F 15 mm dia GI pipe protection (1 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 Mts. below the ground level as below: (ISI Medium).

Connecting the equipments to earth busbar by 8SWG GI (Hot Dip) wire of size as below on wall/floor with staples buried inside wall/floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. as required and mending good damages

Sub-Station Earthing:- Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts. long and 1 x 19/8 stranded GI (Hot Dip) wire (4 Mts. long), 25mm dia x 150 mm long galvanized bolt, double nuts, double washers including socketing at both ends of stranded GI (Hot Dip) wire by crimping sockets/ thimbles and S & F 40 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts (2no for Transformer neutral earthing and 6 (2+2+2) no for HT Gear, Transformer and LT panel body earthing)

Extra for providing masonery enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work(1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe

Extra for connection the neutral of transformar to earth electrode including S&F of 1nos 120 sq.mm. PVC unarmoured copper cables as per direction of EIC.

Finishing of 120 sqmm PVC insulated unarmoured copper cable ends by socketting with ring type copper sockets and insulated tapes etc., including supplying sockets, tapes.

S&F earth busbar of copper flat 50 mm x 6 mm of length 18" on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required

S&F 40mm dia medium gauge GI Pipe ( ISI-Medium) Protection with necessary fittings and jointing metarials as required.

Cutting the masonry floor/concrete road for laying 40mm dia pipe/50x6mm GI flat for sub-station earting. After complition of work mending good the damages to original finish as per direction of EIC.

Connecting the equipments body to earth busbar incl. S & F 50 mm x 6 mm Galvanized (Hot Dip) MS flat on wall/floor with GI saddle as required and connection to equipments with incl. drilling holes, bolts, nuts,washers etc

S&F earth busbar of galvanized (Hot Dip) MS flat 65 mm x 8 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required

Labour charges for cutting/digging of concrete base being size apprx. 600x600x150mm for earthing.

M/S R. K. ENTERPRISE

EFFORTECH

ROY ENTERPRISE

ESS KAY ENTERPRISES