UPGRADATION OF WIRING WITH ALLIED WORKS FOR INSTALLATION OF AIR CONDITIONERS IN SMQS (PHASE-II) AND PROVISION OF LIGHTING ARRESTER FOR CUAS JAMMER AT STATION UNDER GE (AF) CHABUA

Amount

Supply and fixing of Single pole and neutral enclosure with a two pin and earth plug with top and socket complete with one single pole MCB 25 amps complete all as specified and as directed by Engr-in-charge.

Point wiring complete with 4 Sq mm, single core PVC insulated PVC unsheathed multi-stranded copper conductor FRLS cable 1100 volts grade laid/drawn through & including PVC casing and capping in walls/ceiling by means of PVC sleeve/dash fastener with chromium plated iron screws all as per ISI including sunk type pressed steel terminal boxes for mounting, fittings like switches, sockets, fan regulator etc with 3 mm thick plastic laminated sheet top covers concealed in walls etc including 4 Sq mm single core PVC insulated but unsheathed multistranded copper conductor FRLS cable as continuous earth wire to common earth and connecting to earth complete all as specified and as directed.

M & L Submain wiring with 2 runs of single core 6 Sqmm 1100 V grade, PVC, insulated , unsheathed cable, multistranded copper conductor FRLS cable 1100 volts grade, drawn through and including In casing /caping of 25mm dia minimum and conduit accessories in walls/roofs/floors etc, including provision of PVC insulated 6 Sqmm copper conductor as earth continuity conductor (green colour) connected to main earth dolly as specified and directed by Engineer-in-Charge. Note:- Two runs of cable, one run of earth continuity conductor and one run of casing/caping/conduit pipe shall be measured as one RM ncluding taking down old Unserviceable Submain Wiring complete all as specified and as directed by Engr-in-charge. (for VTPN DB)

S & F for sheet metal enclosure MCB DB, 4 way with 200 amp rated bus bar VTPN double door DB (IP 43 & IK- 09 tested by ERDA & CPRI), designed and manufactured as per IS: 8623- 1 & 3, glow wire tested, colour RAL 9003 white with provision for surface and flush mounting, reversible door provision, field fit table key lock position, removable frame, centre plate and gland plate with incoming up to 160 Amp , 415 V, 4 Pole MCCB and 12 Nos outgoing MCB complete all as specified and as directed by Engr-in-charge.

Supply and fix in replacement MCCB,4 Pole, 12 to 63 Amps , with breaking capacity 25 KA , Thermal magnetic trip Unit, fixed thermal Fixed magnetic (FTFM), Ics=100% Icu, AC 415 volt ,50 HZ complete all as specified and as directed by Engr-in-charge.

Supply & Fix in replacement Factory made, sheet steel distribution boards,SP and N, 8 Ways, 240 Volts double door type, protection class ( IP-42) suitable for mounting MCB DBs confirming to IS-13032, IS-8623, BS-5484 with min 200 Amps rating copper bus bar and of the undermentioned type complete all as specified and as directed by Engr-in-charge.

S & F for MCB SP 6 to 32 Amps (C-Curve), breaking capacity 10 KA, 240 volts with cable connection and copper lugs complete all as specified and directed

S & F for MCB SPN 40 Amps (C-Curve), breaking capacity 10 KA, 240 volts with cable connection and copper lugs complete all as specified and directed

M & L for earthing complete with galvanized steel earth plate electrode 600 x 600 x 6 mm buried directly in ground (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5m below normal ground level connected to galvanized steel wire 4mm dia earthing lead up to 7.5m from testing point fixed by means of galvanized iron or steel bolts nuts check nuts and washers, GI earth wire protected by 15mm bore light grade galvanized iron pipe and other end connected to earthing test point including funnel with watering pipe of 20mm bore medium grade galvanized iron, wire mesh, charcoal or coke and common salt in alternate layer of 15cm (compacted thickness)all around the earth electrode with concrete earth pit in PCC (1 : 3 : 6) type C-1, (using 20 mm graded stone aggregate) ,cast iron frame, 50mm thick pre-cast RCC M-25 design mix cover slab size 450x450x50 mm reinforced with 8mm dia TMT bar 10cm C/C and suitable handle of 10mm dia round bar and MS angle iron 50x50x6 mm frame including two coats of painting over a coat of red oxide primer to exposed steel surface including necessary excavation, earth work in soft/loose soil and disposal off spoil to a distance next 50m and necessary testing complete all as shown in Electrical Plate No 3 of SSR Part I complete all as specified and as directed by Engr-in-charge. ( For VTPN)

M & L for maintenance free chemical earthing system complete with 03 (three) no's copper bonded rods, 17.2 mm dia 3000 mm long electrode buried at suitable distance apart directly in ground, to bore holes of 120 mm dia vertically to a depth not less than 3.60 mtr deep below ground level with top edge of earth electrode at a depth not less than 100 mm below normal ground level, provision of clamps or brazed or both for each copper bonded rods made of copper and copper strip of size 25 x 3 mm & strip connection on the top of the electrode and copper strip of size 25 x 3 mm for inter connection of 03 nos copper bonded rods and laying at least 500 mm below in the ground and further connected to test point terminal block (copper strip and test terminal block shall be measured separately), including back filling of bore holes with advanced earth enhanhencing compound 96 kilogram (minimum) of Make : Erico or equivalent of Macmet/True Power/Ennov for artificial treatment to soil so as to achieve earth resistance below 01 Ohms as specified in para 19.140 of SSR Part-1 (2009), including provision of earthing pit in PCC(1:3:6) type C1 pre-cast cover RCC slab of size 400 x 400 x 50 mm with one handle made out of 8 mm dia round bar, including necessary earth work and three coats of white wash on plastered surface (exposed surfaces) and testing complete all as directed and including necessary earth work and testing complete all as specified and directed. Note:-Taking down old unserviceable dilapidated chemical earthing are included in quoted rate. (iii) Item includes cost of 16.5 metre earth strips with protection pipe Any variation in length shall be adjusted through deviation order

M&L for GI mast 4 mtr long 50 mm dia fix in 1:2:4 cement concrete base with suitable depth as per site requirement complete all as specified and directed by Engr-in-Charge.

M&L for lighting strike recorder of standard make as per manufacture complete all as specified and directed by Engr-in-Charge.

M&L for single core copper cable of size 70 sqmm with lugs complete all as specified and directed by Engr-in-Charge.

M/s KL Agarwalla & Co (BID ID -3075968)

Bimal Trading Company (BID ID -3077756)

M/S MAHATO ENTERPRISE (BID ID -3075658)

M/S DURGA CONSTRUCTION & CO (BID ID -3075625)

pintoo construction (BID ID -3075546)

STANDARD ELECTRIC WINDERS (BID ID -3082274)

FREEZCON (BID ID -3078997)

M/S D P BERLIA (BID ID -3075507)