tender for electrical work for proposed mri site at existing central pathology, nbmch, darjeeling. - dismantling the existing wirings ,dbs, electrical fittings & accessories and bring to office store as per direction of the e.i.c 2 supply of2/4 core xlpeinsulated & sheathed armoured stranded aluminium conductor cables for working voltage up to 1100 volts of following sizes [make polycab / rr /kei/ havells/ gloster as approved by e.i.c] 3 (i) 4 core 400 sqmm [from non emeregency feeder pillaer (old substation ) to mri panel] 4 laying of one no. cable above 185 sqmm in underground trench 460mm wide x 760mm average depth, with brick protection on the top of the cable with 8 (eight) nos. bricks per mtr. including filling the space between the bricks and cable and also the trenchwith shifted soil, leveling up and restoring surface duly rammed. 5 laying only cable above 50 sqmm but not exceeding 400sqmm through existing rcc/ hume/gi pipe/open masonary trench for single, 2, 3, 3½ and 4 core 6 laying of cable as below, on existing cable tray and binding with suitable size gi wire. 7 above 150 sqmm 8 laying of cable above of 4 core 400sqmm on wall/surface including s & f ms clams with earthing attachment in 2 x 10 swg gi (hot dip) wire, making hole etc. as necy., mending good damages and painting 9 supplying & fixing medium gauge gi pipe ( isi-medium) protection with necessary fittings and jointing metarials as required 10 (a) 100 mm dia 11 supplying and fixing compression type gland complete with brass gland, brass ring & rubber ring for dust & moisture-proof entry of xlpe/pvc armoured cables as below : 12 (a) 4 core 400 sqmm 13 finishing the end of following xlpe/pvc armoured cables by crimping method incl. supplying and fixing solderless socket (dowels make), tapes, anticorrosive paste & jointing materials : 14 (a) 4 core 400 sqmm 15 supply & fixing of perforated gi cable tray with perforation not more than 17.5% suspended from ceiling incl. s&f gi connector, 6mm dia ms suspender, bolts & nuts, steel fastener etc. as required of the following size. incl. al painting of ms support. with 25x25x3mm angle iron support.200x50x1.25mm (18swg) 16 supply & fixing of perforated gi cable tray bend with perforation not more than 17.5% suspended from ceiling with two nos. suspenders & 25x25x3mm angle iron for supporting the cross member incl. s&f gi connector, 6mm dia ms suspender, bolts & nuts, steel fastener etc. as required of the following size. incl. al painting of ms support..200x50x1.25mm (18swg) 17 excavation of soil for installation of earth electrode and filling & ramming. for soft soil 18 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 by isi medium pipe 19 supplying & fixing earth busbar of galvanized (hot dip) ms flat 25 mm x 6 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 20 connecting the equipments body to earth busbar including s&f 20 mm x 3 mm galvanised (hot dip) ms flat on wall/floor with gi saddles as required and connection to equipments incl. drilling holes, with bolts, nuts, washers etc 21 supplying and fixing 415v, tpn sfu open execution in existing ss enclosure/cubical with nuts bolts etc incl. s & f 3 nos. din type hrc fuse as per rating. 315/320 a (make -l&t /abb/havells) 22 supply,installation,testing & commissioning of cubical type panel, compartmentalized wall mounted, indoor type dust and vermin proof powder coated panel board ,suitable for 415v 3phase ,4wire ,50hz ,ac supply of suitable size made out of 4mm thick ms sheet so as accommodate the following mounting complete with suitable size 6mm thick ms channel frame at the bottom,with adequate size cu wire ,copper bar ,cu link cable connector etc along with necy nuts,bolts,clamps ,grounting bolts incl providing and fixing the following accessoried etc complete as required and suitable for given componants . incoming:a) 415 volt, 315/320a four pole mccb ofbreaking capacity 65ka with fixed thermaland fixed magnetic / adjustable thermal and fixedmagnetic setting (make- l&t /abb/ seimens)------2nosmetering arrangement b) supply & installation of digital energy meter ct operated energy meter/multifunction meter suitable for 3 phase supply, with 3 nos ct600/5a , acc-0.5s )---1 set ( make- l&t wl4405 kwh/mfm or equivalant) with necessary connection and setting the programm by skill technician as per direction of the e.i.c 23 dismantling the ceiling suspended indoor & outdoor units with duct and cu pipe of one no 11 tr & one no 5.5 tr capacity ductable type ac and 8 nos 2/2.2 tr split ac machine from existing position completely and bring to the office store safely as per direction of the eic