supply and fixing spndb, tpndb at higher education department, 5th floor, bikash bhawan, salt lake, kolkata -1 supply and fixing of 6way double door tpn mcbdb (make- legrand/ landt/ abb) on flat iron frame on wall. the tpn db shuold be comprised of 12 nos (6a - 32a) spmcb and one 63a 4 pole mcb isolator and making necessary interconnection 2 supply and fixing of 10+2 way double door spn mcbdb (make- seimens /landt/ abb) on flat iron frame on wall. the spn db shuold be comprised of 10 nos (6a - 16a) spmcb and one 40a dp mcb isolator and making necessary interconnection 3 supply and laying of 4 core 25 sqmm xlpe / a, al cable with earthing attachment 2 x nos 10 swg gl wire with gl shaddle on wall ( make :- havels/ finolex/ polycab/ rr cable). 4 distribution wiring in 1.1 kv single core stranded fr / frls h pvc insulated unsheathed copper wire (finolex/havells/ gloster/ as per direction of eic) in 20mm dia pvc rigid conduit fr (precision make) incl. necy. fittings as required a) 2x6 sqmm + 1x4 sqmm as ecc (tpn to spn db) - (fr) 5 s and f of compression type gland incl. finishing the ends of following xlpe / a, al cable by crimping method 5.1 4 core 25 sqmm 6 finishing of the pvc insulated wire ends by socketting with pin/ ring type copper sockets and insulated tapes etc., including supplying sockets, tapes. a) 6 sqmm b) 4 sqmm
