SPECIAL REPAIR TO LIGHTNING CONDUCTORS AND EARTHING INFRASTUCTURE PHASE I INCLUDING CERTAIN MINOR AND MAJ REV WORK AND PROVISION OF EARTHING PITS AND POWER SOCKETS FOR AIR CONDITIONERS FOR NEW MT ADM BUILDING AT 6 WING AF BARRACKPORE AF CAMP KANCHRA

Amount

Supply and install hi wall split units indoor/outdoor complete with cordless remote control unit and with in built air ioniser and plasma filter for better indoor air quality with minimum 3 star rating and EER 3.2 of capacity 1.5TR. (note: drilling of wall for cable drainage pipe and also make a good surface in wall complete as specified and directed by Engr-in-Charge. (Note:- stand for mounting of O/D unit (if required) is deemed to be included in the rate).

Supply & Installation of Advance encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (Zinc & Alloy Coated), ZINC COATED( 80-100) microns with pure Zinc (99.9%) & ALLOY COATING (200-250)microns. Earthing System confirming IS 3034. The outer and inner pipe should be 76.2 mm & 41.9 mm 3mtrs Length, Zinc coated with additional special Alloy coating 300mm on the topside for additional corrosion protection of the Terminal. The annular space between the pipes being filled up with COMPACT FILL(CF) (Crystalline Conductive Compound). The COMPACT FILL (CF) mixture which is machine pressed in the pipes should not disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity The job includes digging the pits and refilling the same by Conductolite Back Fill compound (Ground Enhancer), the BFC should be eco friendly it should not contain environmentally hazardous material/metal having RoHS Certification from NABL accredited lab. Good earth is to be arranged to fill the excavated pits by mixing the same with BFC 2 bags. including FRP (Fiber reinforced plastic) light weight, high mechanical strength, chemical resistance with detachable easy locking lid of size 250mm X 250mm of thickness 2 mm incl testing on completion after taking down old earthing pit etc complete. (Make : ASHLOK / MACKMET).

M&L for Earthing complete with copper earth plate electrode of size 600 x 600 x 3.15mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to copper strip of size 20 x 3mm earth lead by means brazing after fixing of nuts, bolts, check nuts, washers of galvanised iron steel, protected by galvanized iron pipe 40mm bore (Medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 5 cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion after taking down old earthing complete all complete as specified and directed.

S&F GI strip 32 x 6.0 mm with saddles and fixing screws on poreceling insulator/ spacer fixed at every 1 mtr length for extension of earthing strip on roof/wall and joining the same with existing/New earth test point including taking down old unserviceable one complete all as specified and directed by Engr-in-Charge. (Note:Joining of strip shall be made by brozing/welding after fixing of nut and bolts).

M & L for earthing continuity conductor or main earthing lead fixed to wall or recess or chases with 20 x 3 mm copper strip fixed on porcelin insulator at distance 01 Mtr including nut bolt drilling hole etc after taking down old unserviceable complete all as specified and directed.( Note : Joining of copper strip shall be made by brazing after fixing of nuts & bolts)

M&L for dismantling copper strip of any size from lightning arrestor installed at hangers/buildings, remove all broken suddle, re-fixing the strip after making straight by means of hammer work with new nut, bolts, washer, new shuddles for lightning protection for hanger's/buildings all as required and direceted.

M&L for dismantling GI strip of any size from lightning arrestor installed at hangers/buildings, remove all broken suddle, re-fixing the strip after making straight by means of hammer work with new nut, bolts, washer, new shuddles for lightning protection for hanger's/buildings all as required and direceted.

M&L for air termination, single pointed copper rod, 12mm dia and 300mm long including necessary fixing arrangement using clamp, nuts and bolts after taking down old unserviceable air termination rod complete all as specified and directed.

M&L for dismantling air termination copper rod of any size from lightning arrestor installed at hangers/buildings, re-fixing the same after making straight by means of hammer work with new nut, bolts, washer etc for lightning protection for hanger's/buildings complete all as specified and directed.

M&L for 40mm dia steel tubes (light grade) galvanised with fittings, laid in trenches/wall for protection of underground earth strip when crossing the road/fixing on wall as in repair complete all as specified and directed. (MAKE: JINDAL/BANSAL)

M&L for cement concrete PCC 1:3:6 type C-2 using 40mm graded stone aggregate in filling foundations and mass concrete complete including necessary form work foundation of post complete all as specified and as directed .

S&F for 50mm dia UPVC Pipes (SCH-40) including fittings laid in trenches, fixed to walls, ceilings or in floors etc as in repair complete all as specified and as directed .

S&F for 50mm dia HDPE Pipes PN 10 including fittings laid in trenches, fixed to walls, ceilings or in floors etc as in repair complete all as specified and as directed .

S & F Thermoplastic weather proof empty box (IP 65) with plane wall of size 300mm (L) X 150mm (B) X 170mm (H) fixed on wall with provision of nut, bolts, washer etc. including fixing of test point terminal block inside the box which made out of gun metal or phosphorous bronze of size 75mm X 75mm X 25 mm, drilled and screwed including 3 Nos 8mm dia 25 mm long hex Head screw including taking down old unserviceable one complete all as specified and directed.

M&L for cutting, bending, welding of MS flat iron of size 30mm x 3mm for making of clamps as required size and shape including nut/bolts and painting with two coat of synthetic enamel paint over a coat of red oxaide all as required and directed.

M&L for dismantling the old earth pit and provision the earth pit made out of cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 10cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh all as directed.

M&L for painting earth pit chamber and earth pit by two coat of synthetic enamel paint after cleaning earth pit properly with iron wire brush and indicating board as per colour code as specified and directed by Engr-in-Charge.

M&L for Cutting holes into or through brick walls builtin cement mortar or cement lime mortar and stone walls built in lime mortar or walls of lime concrete upto 40 cm depth including fixing of HDPE pipe of dia 50mm through the wall after taking down old strip of any type and refix the same after cutting of wall and fixing of HDPE ppe, making good in cement mortar 1:3 or cement concrete 1:2:4 type B-l as required complete all as specified and directed. (Note:- HDPE Pipe of dia 50mm rate included & not measured in seperate item)

M&L for fabrication of display board for earth pit nos. location and periodical test results for power circuit earthing, machinary earthing, lightening conductor earthing, made of GI shett 4.0 mm thick, rectangular welding on 12 mm dia rod of minimum height from ground level 45 cm including fixing in PCC 1:2:4 with 20cm X 20cm X 10cm grade aggregate foundation to be carried out at different location. dimension of board shall be 30 cm X 25 cm X. The instruction shall be written black painted board in white letters not less than 2" size for all type of boards complete all as specified and directed by the Engineer-in-charge. Note : (a) All necessary GI sheet, aluminium screws and PCC works etc are deemed to the rate quoted by the contracor. (b) The fabrication of contents on the screen printing should be collected before printing the board from Engineer-in-charge.

S&F in repair Galvanised. 2 strand, steel barbed wire 2.24mm dia barbed with 2mm dia barbs at 75mm spacings and straining and fixing to any type of standard rails straining bolts, including, securing or tying at crossings with and provision of galvanised mild steel wire, staples or steel pins, etc. as directed (each line wire to be measured)

Supply & Installation of Advance encapsulated compound based CPRI tested maintenance free, pipe-in-pipe technology upgraded (Zinc & Alloy Coated), ZINC COATED( 80-100)microns with pure Zinc (99.9%) & ALLOY COATING (200-250)microns. Earthing System confirming IS 3034:1987. The outer and inner pipe should be 76.3 mm & 41.9 mm 3 mtrs Length, Zinc coated with additional special Alloy coating 300mm on the topside for additional corrosion protection of the Terminal. The annular space between the pipes being filled up with COMPACT FILL(CF) (Crystalline Conductive Compound). The COMPACT FILL (CF) mixture which is machine pressed in the pipes should not disintegrate or collapse when outer pipe corrodes. The inner pipe should be extended with terminals for connectivity The job includes digging the pits and refilling the same by Conductolite Back Fill compound (Ground Enhancer), the BFC should be eco friendly it should not contain environmentally hazardous material/metal having RoHS Certification from NABL accredited lab. Good earth is to be arranged to fill the excavated pits by mixing the same with BFC 2 bags(each bag contains 25 kgs of BFC) including FRP(fiber reinforced plastic) cover having high mechanical strength, chemical resistance able to bear 2 TON of loads with detachable easy locking lid incl testing on completion etc complete all as specified & directed. Model No- ASEEL_39-ZC & AC (76.3mm dia) Make:-Elmechs

M&L for Earthing complete with GI earth plate electrode of size 600x600x6 mm thick buried directly in ground with earth pit not less than 2.25 meter deep below ground level with top edge of plate not less than 1.5 meter below normal ground level connected to GI wire 4 mm dia earth lead by means of nuts, bolts, check nuts, washers of galvanised iron as steel, protected by galvanized iron pipe 40mm bore (Medium grade) all as directed including cement concrete (1:3:6) type C-1 earth pit with precast RCC (1:1.5:3) type A-1 cover slab of size 42 x 42 x 5 cm thick reinforced with 8mm dia TMT bars @ 15 cm c/c both ways with 10mm dia mild steel round bar of 30 cm long, bent to shape as lifting handle, funnel, wire mesh, 20 mm bore galvanized iron pipe (medium grade) for watering, earth testing point, charcoal or coke and salt in alternate layers with necessary earth work in soft/loose soil complete all as shown in electrical plate No 3 of SSR Part I including testing on completion all complete as specified and directed.( GI wire upto 7.5m including testing consider in this item).

Supply and draw submain wiring with two single core 6 sqmm FR PVC insulated copper cable 1100 vots grade multistrand, unseathed conductor drawn into PVC casing and caping and all necessary fittings including 6 sqmm multi strand FR PVC insulated copper wire for earth continuty conductor connected to common earth dolly complete and making good disturbed surface complete all as specified and directed.

Supply and fix MCB protected POWER UNIT with one 25 amps socket, (incl 3 Pin Plug Top) including MCB DP and starter 25 Amps rating with six module plate and flush metal GI box and electrically connecting up, complete all as specified and directed of Make Havells cat No- DHDUCDP0253016-25 (25 Amps) OR any equivalent model in Legrand / L & T.

M&L for MCB single pole, 240 volts, 20 Amps, C curve and rupturning cap 10 KA complete all as specific and directed.

S&F ceiling fan of 1200 mm sweep, 240 V, 50 Hz high speed with BEE rated 5 star and connecting up incl provn of cable from ceiling rose to fan with flexible copper cable of suitable size, complete all as specified and directed

Supply & fix exhaust fans AC single phase 230/ 240 V of size 300 mm sweep with louver incl cutting wall of suitable size & grouting of fully threaded bolts 04 Nos, with connection etc complete and all as specified and directed.

Supply & fix Air Circulator fans 230 volts single phase oscillating 450 mm sweep suitable for wall mounting complete and all as specified and directed.

Supply and Fix Pedstal Fan white in colour 400mm sweep,1350 RPM, 72CMM air delivery ,55 Watts suitable for 230/240 Volts complete all as specified and directed

BUSINESS SYNDICATE

Oenix and associates

CIVMECH CONSULTANTS

MERCANTILE AGENCY

BANERJEE CONSTRUCTION

BARRACKPORE ENTERPRISE