ADDN ALTN TO EXISTING SERVER ROOM FOR ITRC ALONGWITH CONNECTED ELECTRICAL WORKS UNDER GE DSSC WELLINGTON.

Amount

B/R PORTION Demolition of Brickwork or stone / boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles and removing unserviceable debris off the premises all as specified and as directed.

Dismantling plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings, gutters, eaves board etc., complete all as specified and as directed.

Taking down Chowkats or frames n.exc 1.5 Sqm each (without taking off shutters from the frames) complete all as specified and directed.

Taking down Chowkats or frames exc 1.5 Sqm but n.exc 4 Sqm each (without taking off shutters from the frames) complete all as specified and directed.

Demolition of unreinforced plain cement concrete in ground floors and pavings n. exc 15 cm thickness (below or above ground level) and removing unserviceable debris off the premises all as specified and as directed.

Dismantling wrought iron or mild steel work of any description complete all as specified and as directed.

Taking down cement plaster on brick or stone walls, etc., including raking out joints, hacking for key, scrubbing down with water, etc., and removing debris off the premises all as specified and as directed.

Excavation in trenches, n.exc 1.5m wide and n.exc 1.5 m depth for foundation etc., or for shafts, wells, cesspits, manholes, pier holes etc n.exc 1.5m in depth and getting out in hard/dense soil all as specified and as directed.

M & L for PCC (1:4:8) type D-2 (using 40mm graded stone aggregate) as in foundations, filling and mass concrete complete all as specified and as directed.

Returning, filling in trenches, including spreading, levelling, watering and well ramming in layers n.exc 25 cm thick at back side of wall complete all as specified and as directed.

Removing excavated material (soil) to a distance n.exc 50 m and depositing where directed at a level n.exc 1.5 mts above the starting point all as specified and as directed.

M & L for precast cement concrete (1:3:6) type C-1 (using 20 mm graded stone aggregate) block masonry with solid blocks, exc 10 cm in width and set in CM (1:6) complete all as specified and directed.

M & L for RCC (1:2:4) (nominal mix) type B-1 (using 20mm graded aggregate) as in Beams, cantilevers, bressummers, lintels over 1.5m span etc complete all as specified and as directed.

M & L for use and waste of timber as in form work to sides and soffits of roof beam, beam haunchings, girders, bressummers, lintels , cantilevers, shelves including supports, overhangs, etc.., also splays between floors and beams etc., for fair finished surfaces of concrete flat all as specified and as directed.

M & L for mild steel TMT bars 10mm dia and over cut to length bent to shape required including cranking bending spirally for hopping for columns,hooking ends and binding with and including MS wire (annealed) not less than 0.90 mm dia complete all as specified and as directed.

Description all as per Item No 15 above, but 5 mm dia and over upto and including10 mm dia as in stirrups, spacers and binders all as specified and as directed.

M & L for rendering 15 mm thick in CM (1:6) on fair faces of brick work/stone work, finished even and smooth without using extra cement complete all as specified and as directed.

M & L for rendering 15 mm thick in CM (1:4) mixed with liquid WPC as per manufacturer's instruction on fair faces of brick work/ roof facia etc., finished even and smooth without using extra cement complete all as specified and as directed. Note : Liquid WPC shall be measured and paid seperately.

M & L for moorum /red bajiri filling in floors or pavings, laid in layers n.exc 15cm thick, spread, levelled and rammed including watering all as specified and as directed.

M & L for hard core of broken stone or boulders n.exc 63 mm deposited, spread and levelled in layers n.exc 15cm thick, water and rammed to a true surface complete all as specified and as directed.

M & L for providing 75mm thick PCC (1:3:6) type C-2, (using 40mm graded stone aggregates) as in subbase complete all as specified and as directed.

M & L for conductive type anti static tiling with surface resistance less than 1Mega Ohm (as per International standard ANSI ESD S7.1), size 600 x 600 x 10-11mm thick, over 25mm thick PCC bed of (1:1.5:3) with 20mm thick screed bed in CM (1:4) keeping the joints between the tiles 3-5mm wide and 6-8mm deep and after curing rake out the joints and pointing with conductive epoxy grout and 24 gauge annealed copper wire of approved quality installed in conductive grout joints and the other end of copper wires grounded for the smooth discharge of statice charge accumulated on floor laid all as per manufacturer's instructions and laid by manufacturer's specialized team complete all as specified and as directed.

M & L for vitrified cremic joints less tiles 8 to 10 mm thick, light shade (square/rectangular) area of each tile exc 0.36 Sqm but n.exc 0.42 Sqm in floors etc., set and jointed in neat cement slurry and pointed in white or coloured cement to match the colour of tiles, laid over and including 15 mm thick screed bed in CM (1:4) complete all as specified and as directed.

Description all as per Item No 23 above but on vertical surfaces such as skirting, dado etc., laid over and including 10 mm thick rendering/ backing coat in CM (1 :4) complete all as specified and as directed.

M & L for modular false ceiling systems in mineral Fibre Sierra having micro look teglar edges of 13mm thickness of size 595mm x 595mm GRG ceiling tiles shall have a humidity resistence of RH 99 with NRC level of 0.70 and light reflactance up to 85% and fixed with suspension system (Grid), the size of the same is 15mm x 32mm, The galvanised iron sheet of thick 0.30mm used in the manufacturing of gird which is zinc coated for preventing corrosion. The main runners are hung from the soffit with help of GI wire hanger complete with installation all as manufacturers instruction and as directed. Make: Armstrong/Diamond/Saint Gobain

S & F for mild steel work in tubular trusses, sections including special shaped washer, plates, angle cleats etc. complete using ERW or induction butt welded tubes conforming to I. S.1161- 1979 grade St.-240 complete all as specified and directed.

S & F for rolled mild steel framed work as in doors or gates of angle or other section with gusset plates, rails, braces, etc., complete, drilled for fixing of steel sheeting or other covering doors, etc., to be prepared for hanging or sliding with and including either hooks and hinges or steel hanging door fittings (exclusive of steel sheeting or other covering, running rails and guides) and hanging; also fastening and fixing confirming to Fe-290 Gde E-165 all as specified and as directed.

S & F for mild steel framed work such as grills, gratings, etc with ends of bars shouldered and/or riveted, or forged into spikes; framed guard bars; barred iron doors ladders framed balusters; walk ways railings ; framework of water tanks and similar work conforming to Fe 410-0 or Fe 310-0 all as specified and directed.

S & F for mild steel work in plates (plain or chequered), channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment Fe 410-W (Gde E-250 Quality-A) complete all as specified and as directed.

S & F for pre-painted Galvalume aluminium Zinc coating GI based corrugated steel sheet 0.5 mm thick of any colour having tensile strength of 550 MPa as in roof covering/cladding to wall fixed with self tapping screws all as specified and as directed.

S & F for pre-painted galvalume aluminum zinc coating GI based plain steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering / ridges / valley gutters / eaves board / cladding to wall and similar items fixed with self tapping screws with EPDM washers all as per manufacturer's specification and as directed.

M & L for powder coated aluminium frame, shutters for doors, windows, ventilators with one or more rebates, shutters and fixed partion, handles etc including joining cleat for fixing etc., complete all as specified and as directed.

S & F 5.5 mm thick sheet glass, ordinary quality and glazing with oil putty / Aluminium rubber beading in squares exc 0.5 Sqm in each pane complete all as specified and directed.

S & F for 12mm thick prelaminated particle board exterior grade prelaminated both side with decorative choice laminations fixed with screws to timber frame work or to aluminium frames as in doors and partitions complete all as specified and as directed.

M & L for preparation of new/previously untreated steel surfaces of any description, over 10 cm width or girth, not otherwise described and applying two coats of synthetic enamel paint over a coat of red oxide zinc chrome primer all as specified and as directed.

M & L for preparing new surfaces of wall and applying two coats of distemper oil emulsion over and including one coat of primer complete all as specified and as directed.

M & L for preparing new surfaces of wall and applying two coats of cement paint over and including one coat of primer complete all as specified and as directed.

M & L for preparation of old plastered/unplastered surfaces of wall and applying one coat of acrylic emulsion weather coat apex complete all as specified and as directed.

M & L for chequered cement concrete tiles 200 x 200 x 25 mm thick, set, jointed and pointed in neat cement slurry in floors with grey cement and pigments of required colour laid over and including 20mm thick screed bed in CM (1:4) all as specified and as directed.

S & F PVC half rounded gutter dia 160mm (CL-2) 0.4 Mpa (4 kg/cmsq) all as specified and as directed.

S & F PVC pipe dia 160mm (CL-2) 0.4 Mpa (4 kg/cmsq) fixed with suitable MS brackets vertical surface of wall all as specified and as directed.

S & F PVC bends 160mm dia all as specified and as directed.

E /M PORTION INTERNAL ELECTRIFICATION M & L for point wiring with 1.5 Sq mm, PVC insulated, FRLS, single core, copper conductor cable, 1100 Volt grade, multi stranded drawn through and including medium grade Rigid non metalic PVC conduit concealed in wall/ceiling/roof etc with all necessary accessories for the following controlled by one switch with and including continuous 1.5 Sqmm PVC insulated single core copper conductor cable earth continuity conductor connected to common earth and earth dolly, in the modular flush boxes etc. complete all as specified and directed by Engr-in-Charge. Make of Cable : Havells/Finolex/Polycab Make of Conduit : Finolex/Precision/Bajaj Plast

One light/fan/call bell point controlled by one switch complete all as specified and as directed.

One 5 amps 5 Pin socket outlet on independent board complete all as specified and as directed.

Note for Item Nos 43.10 and 43.20: (i) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth. (ii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates. (iii) Modular flush boxes will be measured & paid seperately

Description all as per Item No 40 above but with PVC insulated copper conductor cable of size 2.5 Sqmm and 2.5 Sqmm for earth continuity conductor for 16A switch socket complete all as specified and as directed. Note: (i) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth (ii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates.(iii) Modular flush boxes will be measured & paid seperately

Description all as per Item No 40 above but with PVC insulated copper conductor cable of size 4 Sqmm and 4 Sqmm for earth continuity conductor for 32A switch socket complete all as specified and as directed. Note: (i) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth (ii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates.(iii) Modular flush boxes will be measured & paid seperately

M & L for sub main wiring with four single core, multi stranded, PVC insulated, 1100 Volt grade, FRLS cable with multi stranded copper conductor of size 6 Sq mm (4 x 6.0 Sqmm + 1 x 6.0 Sqmm) drawing through and including medium grade non mettalic rigid PVC conduit concealed in wall/ceiling/roof etc., including continuous PVC insulated copper conductor two core earth continuity conductor of size 6 Sqmm connected common earth complete all as specified and directed. Make: Havells/Finolex/Polycab Make of Conduit : Finolex/Precision/Bajaj Plast Note : (i) 5 runs of 6 Sqmm cable and one run of conduit shall be measured as one unit length (ii) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth (iii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates.

M & L for sub main wiring with two single core, multi stranded, PVC insulated, 1100 Volt grade, FRLS cable with multi stranded copper conductor of size 6 Sq mm (2 x 6.0 Sqmm + 1 x 6.0 Sqmm) drawing through and including medium grade non mettalic rigid PVC conduit concealed in wall/ceiling/roof etc. including continuous PVC insulated copper conductor single core earth continuity conductor of size 6 Sqmm connected common earth complete all as specified and as directed. Make: Havells/Finolex/Polycab Make of Conduit : Finolex/Precision/Bajaj Plast Note : (i) 3 runs of 6 Sqmm cable and one run of conduit shall be measured as one unit length (ii) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth (iii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates

M & L for sub main wiring with two single core, multi stranded, PVC insulated, 1100 Volt grade, FRLS cable with multi stranded copper conductor of size 16 Sq mm (2x16.0 Sqmm + 1x16.0 Sqmm) drawing through and including medium grade non mettalic rigid PVC conduit concealed in wall/ceiling/roof etc. including continuous PVC insulated copper conductor single core earth continuity conductor of size 16 Sqmm connected common earth complete all as specified and as directed. Make of Cable : Havells/Finolex/Polycab Make of Conduit : Finolex/Precision/Bajaj Plast Note : (i) 3 runs of 16 Sqmm cable and one run of conduit shall be measured as one unit length (ii) The wiring shall be done in proper color coding using red,yellow,blue for phases, black for neutral and green for earth (iii) The cost of cutting chases and making good the disturbed surfaces is deemed to be included in the unit quoted rates

S & F modular type switch single pole 10 Amps, one module, one way complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No: ACVSXXW101 or techno-commercially equivalent in Legrand/Polycab

S & F modular type switch single pole 16 Amps one way, 1 module complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No : ACVSXXW161 or techno-commercially equivalent in Legrand/Polycab

S & F modular type switch single pole 25 Amps one way, 1 module complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No : ACVSXXW251 or techno-commercially equivalent in Legrand/Polycab

S & F modular type socket 6 Amps 3 Pin, 2 module complete all as specified and as directed. Make:Verona of Crabtree (Havells), Cat No : ACVKSWW063 or techno-commercially equivalent in Legrand/Polycab

S & F modular type socket out let 2 in 1, 6/16 Amps, 2 module complete all as specified and as directed. Make:Verona of Crabtree (Havells), Cat No : ACVKCWW163 or techno-commercially equivalent in Legrand/Polycab

S & F modular type socket out let 2 in 1, 25 Amps, Heavy Duty, 2 module complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACVKCWW253 or techno-commercially equivalent in Legrand/Polycab

S & F concealing modular metal flush box suitable for fixing switches/sockets of 1/2 modules complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACTXMIIX01/02, or techno-commercially equivalent in Legrand/Polycab

S & F concealing modular metal flush box suitable for fixing switches/sockets of 3 modules complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACTXMIIX03, or techno-commercially equivalent in Legrand/Polycab

S & F concealing modular metal flush box suitable for fixing switches/sockets of 4 modules complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACTXMIIX04, or techno-commercially equivalent in Legrand/Polycab

S & F concealing modular metal flush box suitable for fixing switches/sockets of 6 modules complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACTXMIIX06, or techno-commercially equivalent in Legrand/Polycab

S & F modular cover plate suitable for fixing switches/sockets of 1/2 modules complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No : ACVPPCWV01/02 or techno-commercially equivalent in Legrand/Polycab

S & F modular cover plate suitable for fixing switches/sockets of 3 modules complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No : ACVPPCWV03 or techno-commercially equivalent in Legrand/Polycab

S & F modular cover plate suitable for fixing switches/sockets of 4 modules complete all as specified and as directed. Make: Verona of Crabtree (Havells), Cat No : ACVPPCWV04 or techno-commercially equivalent in Legrand/Polycab

S & F modular cover plate suitable for fixing switches/sockets of 6 modules complete all as specified and as directed. Make : Verona of Crabtree (Havells), Cat No : ACVPPCWV06, or techno-commercially equivalent in Legrand/Polycab Note for item No 52 to 59 : The make/model of modular metal flush boxes & modular cover plates shall be same as that of modular switches & sockets.

S & F ceiling rose surface mount PVC /Polycarbonate, isolated body with face bakelite two /three terminal complete all as specified and directed. Make: Havells/CG/Anchor

S & F energy saving high power LED building security light of 25W made up of pressure die cast aluminum housing with embedded PC cover having TOP Opening seperate driver compartment with IP66 protection and making connections in flexible conduit complete all as specified and as directed. Make: Havells, Model : Endura Pearl, Cat No : ENDURAPEARLSL25WLED757SASY TOPC or techno-commercially equivalent in Jaquar/Philips

S & F surface mounted Aesthetically designed 2 x 2 LED flat panel for 42 Watts surface mounting which provides soft-light and glare free symmetrical distribution complete all as specified and as directed. Make: Havells, Cat No: VENUSNEOHE2X2P LR42WLED865MOD or techno-commercially equivalent in Jaquar/Philips

Supply, install, testing & commissioning of Exhaust fan, PVC body with automatic back shutter louvers 250 mm sweep, 1280 RPM or more, Air Delivery not less than 860 CMH, single phase, 240 Volts, AC, 50 Hz and connecting up complete including louvers and provision of cable of suitable sizefrom ceiling rose to fan in flexible hose and making of suitable sized hole in the wall for fixing of the exhaust fan & making good the disturbed surfaces (if any) complete all as specified & as directed. Make : Havells, Cat No: Ventil Air - DX White or techno-commercially equivalent in Usha/Crompton. Note : The cost of making hole in walls/other surfaces & making good the disturbed surfaces incl any framework/cement work/wood work/welding work etc. required for proper fixing of the exhaust fan & matching to the existing surface is deemed to be included in the unit quoted rates.

Supply, install, testing & commissioning of Exhaust fan, Metal body with automatic back shutter louvers 450 mm sweep, 900 RPM or more, single phase, 240 Volts, AC, 50 Hz and connecting up complete including louvers and provision of cable of suitable size from ceiling rose to fan in flexible hose and making of suitable sized hole in the wall for fixing of the exhaust fan & making good the disturbed surfaces (if any) complete all as specified & as directed. Make : Havells, Cat No: Turbo Force SP or techno-commercially equivalent in Usha/Crompton. Note : The cost of making hole in walls/other surfaces & making good the disturbed surfaces incl any framework/cement work/wood work/welding work etc. required for proper fixing of the exhaust fan & matching to the existing surface is deemed to be included in the unit quoted rates.

S & F MCB, DB, TPN, 8 ways, DOUBLE DOOR, IP-43, Ik-09 with metal door, rated bus bars, earth bar, neutral links complete incl. blanking plates as required & fixed flush to wall/other surface complete all as specified and as directed. Make : L & T, Cat No : DBTPN008DD or techno-commercially equivalent in ABB/LEGRAND. Note : The cost of making good the disturbed surfaces & cost of control/internal wirings with appropriate sized copper conductors is deemed to be included in the unit quoted rates.

S & F MCB, TPN, 15KA, 415V, "C" curve, 100 A, ISI marked complete all as specified and as directed. Make : L & T, Cat No : AU15S41003C or techno-commercially equivalent in ABB/LEGRAND.

S & F MCB, TPN, 10KA, 415V, "C" curve, 63 A, ISI marked complete all as specified and as directed. Make : L & T, Cat No : BB40630C or techno-commercially equivalent in ABB/LEGRAND.

S & F MCB, TPN, 10KA, 415V, "C" curve, 40 A, ISI marked complete all as specified and as directed. Make : L & T, Cat No : BB40400C or techno-commercially equivalent in ABB/LEGRAND.

S & F Sheet metal enclosure for DBs when MCBs to be used, 16 way, SP & N, 240 Volt, double door with 100 Amps rated bus bar and blanking plates complete all as specified and as directed. Make : L&T, Cat No : DBSPN016DD or techno-commercially equivalent in Legrand/ABB. Note : The cost of making good the disturbed surfaces is deemed to be included in the unit quoted rates.

S & F Sheet metal enclosure for DBs when MCBs to be used, 8 way, SP & N, 240 Volt, double Door with 100 Amps rated bus bar and blanking plates complete all as specified and as directed. Make : L&T, Cat No : DBSPN008DD or techno-commercially equivalent in Legrand/ABB. Note : The cost of making good the disturbed surfaces is deemed to be included in the unit quoted rates.

S & F Miniature circuit Breakers, SP & N, 240 Volts of capacity 63 Amps with breaking capacity 10 KA complete all as specified and as directed. Make: L&T , Cat No: BB20630C- or techno-commercially equivalent in ABB/Legrand

S & F Miniature circuit Breakers, SP & N, 240 Volts of capacity 40 Amps with breaking capacity 10 KA complete all as specified and as directed. Make: L&T, Cat No: BB20400C or techno-commercially equivalent in ABB/Legrand

S & F Miniature circuit Breakers, SP 240 Volts of capacity 6-32 Amps as ordered with breaking capacity 10 KA complete all as specified and as directed. Make: L&T, Cat No: BB10320C or techno-commercially equivalent in ABB/Legrand

S & F MCB Changeover switch DP with (I-O-II) opertaion with 240V of capacity 40A rating with breaking capacity 10KA complete all as specified and as directed. Make:L&T, Cat No:AUC00204000 or techno-commercially equivalent in ABB/Legrand

S & F double pole enclosure complete for fixing one DP MCB 40A complete all as specified and as directed. Make: L&T, Cat No : DBENC002SD or techno-commercially equivalent in Legrand/ABB Note for Item Nos 65 to 75 : The Make/Model of MCCB/MCB shall be same & perfectly compatible with MCCB/MCB DBs etc

AIR CONDITIONING S & F single pole and neutral enclosure with a two pin and earth plug and socket complete with fixing one single pole MCB 32A C Series with Breaking capacity 10KA complete all as specified and as directed. Make: L&T, Cat No : DBMPS120SD for DB & Cat No : BB10320C for MCB or techno-commercially equivalent in Legrand/ABB

Supply, install, commissioning & testing of hi wall, split-type Air Conditioner Unit of capacity 2.0 TR or higher rating based on Inverter Technology comprising of variable speed copper compressor suitable for adjusting power depending on heat load incl indl indoor & outdoor units complete with cordless remote control unit & with in-built stabilizer free operation & PM 2.5 Filter etc. for better indoor air quality with 5 star rating incl electric connection complete all as specified and as directed. Make : Bluestar/Daikin/Hitachi/Voltas

Note : (i) The Air conditioner shall be initially filled with refrigirant of specified quantity & shall be Non CFC type & as per latest technology. (ii) The cost of refrigerant pipes reqd is deemed to be included in unit quoted rates. (iii) Suitable piping of adequate length & size for drain of condensate water from indoor unit shall be provided & the cost of the same is deemed to be included in unit quoted rates. (iv) Anything missed out in technical specifications but technically reqd for efficient working of AC is deemed to be included in unit quoted rates.

Supply, install, commissioning & testing of wall-mounted copper wound voltage stabilizer, ISI marked for automatic operation, single phase, naturally air cooled, indoor type & designed for I/P variation between 160 V to 260 V with Digital Voltmeter & O/P voltage stabilization at 230 V with accuracy of +/- 2.5%, with high & low voltage cut off & time delay & of capacity 5.0 KVA suitable for 2.0 TR Inverter AC incl electric connection complete all as specified and as directed. Make : Volina, Cat No : VCDW-05160 or technocommercially equivalent of Sen & Pandit/V-Guard.

EQPT EARTHING SYSTEM Supply, Installation, Commisioning and testing of Maintenance free Eqpt Earthing system comprising of the following:-

Copper Bonded Steel Earth Rod of 3 Mtr length & 14.2 mm diameter, augering a hole of diameter 3 inch & 9 feet in depth into the soil, placing the Earth rod into the augered hole, hammering the rod to further 1 feet depth, removing excavated materials complete all as specified and directed. Make: Erico, Cat No : CODE74071020 or techno-commercially equivalent of Siemens/ Harger. Breif specifiCations of CBSE rod is as follows:- (a) The outer surface must be molecularly bonded with uniform layer of 250 micron copper, 99.9% pure electrolyte copper coating. (b) Nickel interface must be provided between copper and steel electrode to avoid the galvanic corrosion. (c) Must be capable of withstanding fusing current 20KA. (d) Earth rod must be in compliance with IEC 62305-2. (e) Tensile Strength greater than 80000 PSI on 12mm. (f) High resistance to corrosion.

Ground Enhancement Material (GEM) per bag 11.33 Kgs, Confirming to IEC 62561-7 Standard, Premixing the GEM into slurry form using water (not more than 5 to 6 Ltrs per bag). Pouring the GEM mixture in the augured hole and filling complete all as specified and as directed. Make: Erico, Cat No : GEM 25A-25-1 lb or techno-commercially equivalent of Siemens/Harger. Brief specifiCations of the same is as follows:- (a) Must be carbon based superior conductive material (b) Resistivity must be less than 2 ohm-cm (c) Must not cause corrosion to copper when in contact (d) Must not expand or experiance any shrinkage once set (e) Must not depend on continuous presence of water/moisture/salt to maintain conductivity (f) Must not decompose/leach with time (g) must not contain hazardous chemicals as per IEC 62561-7 (h) Flexural and possess compressive strength as per relevant standard (j) Sulpher content must be less than 2%

Cadweld materials for connections between Ground Rod with CBSC conductor by Exothermic reaction, connections to be made with semi-permanent graphite mould, which shall hold the conductors to be welded. Weld metal must be a mixture of copper oxide and aluminium complete all as specified and as directed. Make: Erico, Cat No : 150 Plus F20 or techno-commercially equivalent of Siemens/Harger

8mm Copper Bonded Steel Round conductor, minimum copper bonding shall be 254 microns having continuous coin form, the conductor core consists of low carbon steel grade for improved flexibility. The copper surface of the conductor should provide high conductivity and corrosion resistance properties, well-suited as a lightning protection conductor in accordance with IEC 62305-3 including excavation depth 30cm for laying round conductor, removing excavated material, return filling complete all as specified and as directed. Make: Erico, Cat No : CBSC - 8mm or techno-commercially equivalent of Siemens/Harger

Clamp Holder made up of 304 grade SS with SS bolt and nut at every 1 m distance of round conductor. The clamp should be suitable for Single run of Copper bonded Steel round conductor size of 8-mm complete all as specified and as directed. Make: Erico, Cat Part No: CBSC-8 SADDLE or techno-commercially equivalent of Siemens/Harger

Readymade PVC heavy duty Chamber (250mm dia, 260mm Height) with round cover & minimum 5 ton load bearing capacity, marking each earth resistance value complete all as specified and as directed. Make : Erico or techno-commercially equivalent of Siemens/Harger

Terminal connections to existing earth from maint free earth pit for equipment bonding by mechanical means using nuts, bolts & connecting accessories. Make: Erico, Cat no : BCR10T or techno-commercially eqvt of Siemens/Harger complete all as specified and as directed. Note : Terminals of existing (if any) earth pits shall be cleaned for proper contact with CBSC conductor & cost of the same is deemed to be included in the unit quoted rates.

Common Bus-Bar 250x50x3 mm for earth connection with suitable base clamps & insulators, providing DD universal pattern for 08 Nos of holes for connections complete all as specified and as directed. Make: Erico or techno-commercially equivalent of Siemens/Harger

LIGHTNING PROTECTION Supply, Installation, Commisioning and testing of air terminal system of collection volume method (CVM) with the following specifications:-

Dynasphere lightning conductor stainless steel as per IEC 61024. The Air terminal shall be placed using the CVM method placement technology as specified in IEEE-998 complete all as specified and as directed. Make: Erico, Cat No:D/SMKIVSS or techno-commercially equivalent in Siemens/Harger

Brief Specifications are as follows:- (a) Impulse tested, atleast for 40KA both +ve and -ve, 8/20 micro-second, resistance between the terminal tip and the sphere should be min 10M Ohm before and after the test. (b) Free from corona effect (c) Trigger an upward streamer when there is downward streamer (d) The dome must be insulated from the rod but connected to ground via dynamic variable impedance. (e) The center grounded electrode tip shall be alteast 20mm dia (f) The terminal must be isolated from the structure using an insulated support mast making an isolated lightning protection sytem (g) Air terminal should not be dependant upon batteries or external power supplies for any part of its operation (h) Streamer emission should not be ESE type

5m Elevation pole made of aluminium mast with dia of 60mm with M20 thread at the top to fix the unit complete all as specified and as directed. Make:Erico, Cat No: ALU-3M or techno-commercially equivalent in Siemens/Harger

Air terminal adaptor made of stainless steel for the connectivity of air terminal & the mast with suitable terminal clamp made of SS complete all as specified and as directed. Make: Erico, Cat No:INTCPT-ADM3/4UNC or techno-commercially equivalent of Siemens/Harger

Guy wire support incl all fixing arrangements complete all as specified and as directed. Make:Erico, Cat No: IGUYKIT4MGRIP or techno-commercially equivalent of Siemens/Harger

S & F 2 runs of 8mm Copper Bonded Steel Round conductor, minimum copper bonding shall be 254 microns having continuous coin form, the conductor core consists of low carbon steel grade for improved flexibility. The copper surface of the conductor should provide high conductivity and corrosion resistance properties, well-suited as a lightning protection conductor in accordance with IEC 62305-3 complete all as specified and as directed.

S & F Clamp Holder made up of 304 grade SS with SS bolt and nut at every 1 m distance of round conductor. The clamp should be suitable for double run of Copper bonded Steel round conductor size of 8-mm complete all as specified and as directed. Make : ERICO, Cat No: CBSC-8 SADDLE or techno-commercially equivalent of Siemens/Harger

Supply, Installation, Commisioning and testing of Maintenance free radial earthing system comprising of the following:-

Copper Bonded Steel Earth Rod of size 5 feet x 5/8 inch diameter of 3 Nos, earthing system require excavation of 100mm width x 450 mm depth x 5000mm length in two different directions, 2 radials should be 10m apart, Auger 3 Nos hole of diamater 4 inch and 4 feet depth in soil, Placing the earth rods in to the augured hole, hammering the rods to 1 feet depth, readymade PVC heavy duty Chamber (250mm dia, 260mm Height) two numbers per one earthing system with minimum 5 ton load bearing capacity, removing excavated material complete all as specified and as directed. Make: Erico, Cat No : CODE74071020 or techno-commercially equivalent in Siemens/ Harger

Brief specifications of CBSE rod is as follows:- (a) The outer surface must be molecularly bonded with uniform layer of 250 micron copper, 99.9% pure electrolyte copper coating. (b) Nickel interface must be provided between copper and steel electrode to avoid the galvanic corrosion. (c) Must be capable of withstanding fusing current 20KA (d) earth rod must be in compliance with IEC 62305-2 (e) Tensile Strength greater than 80000PSI on 12mm. (f) High resistance to corrosion.

Ground Enhancement Material (GEM) per bag 11.33 Kgs, Confirming to IEC 62561-7 Standard, Premixing the GEM into slurry form using water (not more than 5 to 6 Ltrs per bag). Pouring the GEM mixture in the augured hole and filling complete all as specified and as directed. Make: Erico, Cat No : GEM 25A-25-1 lb or techno-commercially equivalent of Siemens/Harger Brief specifications of the same is as follows:- (a) Must be carbon based superior conductive material (b) Resistivity must be less than 2 ohm-cm (c) Must not cause corrosion to copper when in contact (d) Must not expand or experiance any shrinkage once set (e) Must not depend on continuous presence of water/moisture/salt to maintain conductivity (f) Must not decompose/leach with time (g) must not contain hazardous chemicals as per IEC 62561-7 (h) Flexural and possess compressive strength as per relevant standard (j) Sulpher content must be less than 2%

Cadweld materials for connections between Ground Rod with CBSC conductor by Exothermic reaction, connections to be made with semi-permanent graphite mould, which shall hold the conductors to be welded. Weld metal must be a mixture of copper oxide and aluminium complete all as specified and as directed. Make: Erico, Cat No : 150 Plus F20 or techno-commercially equivalent of Siemens/Harger

8mm Copper Bonded Steel Round conductor, minimum copper bonding shall be 254 microns having continuous coin form, the conductor core consists of low carbon steel grade for improved flexibility. The copper surface of the conductor should provide high conductivity and corrosion resistance properties, well-suited as a lightning protection conductor in accordance with IEC 62305-3 including excavation depth 30cm for laying round conductor, removing excavated material, return filling complete all as specified and as directed. Make:Erico, Cat No : CBSC - 8mm or techno-commercially equivalent of Siemens/Harger

S&F lightning event counter installed on down conductor non resettable mechanical counter non electronic without any external power, IP67 enclosure, triggering impulse < 2KA, 8/20 micro second, warning sticker should be provided near to down conductor in visible place complete all as specified and as directed. Make:Erico, Cat No:LEC-IV or techno-commercially equivalent of Siemens/Harger

EXTERNAL ELECTRIFICATION Supply, Install, Commissioning & testing of 3 Phase isolation Txr + 3 phase servo controlled voltage stabilizer of capacity 50KVA, weather proof, outdoor type complete with 4P lightning & switching surge protector, duly provided with & including supporting enclosure, by-pass switch, input breaker of appropriate rating/type/breaking capacity etc. complete all as specified & as directed. Brief Technical Specifications are as follows:-

3 Phase Isolation Txr:- (a) Type & Capacity - dry type, 50KVA, (b) Type of cooling : Forced air cooled, (c) Construction - core type construction, (d) K-Rating - Normal, (e) IR Value >1000M ohm, (f) dielectric strength - 2.5KV for 60 Sec, (g) Leakage current <5 mA, (h) No load losses -1.2%, (j) Load losses - 1.8% (k) Efficiency > 97%, (i) Duty - Continuous, (m) Class of insulation - H, (n) Method of winding - Multiple parallel to reduce skin effect (o) Degree of protection - IP 55 (p) Standard - IS : 2026 (q) Type of winding - Copper (r) Vector group - Dyn-11 (s) Maximum output current - 70 Amps. (t) Input-Output voltage range - 415 +1% V Make : Intelle power system or techno-commercially equivalent make as approved by GE. 03 Phase Servo Controlled Voltage Stabilizer : (a) Type & Capacity - Dry type, 50 KVA (b) Type of cooling - Air cooled (c) Input voltage range - 300 to 480 V. (d) Nominal output voltage with regulation - 415 +1% V (e) Input frequency - 50 Hz. (f) Efficiency - > 96% (g) Effect of load PF - Nil. (h) Waveform distortion - Nil (j) Type of Servo Control - Micro controller based true RMS sensing & correction. (k) Servo motor drive - Triac based AC step synchronous motor (l) Under/Over voltage cut-off - Electronic cut-off with graded time delay (m) Single phasing protection (n) Phase reversal protection. (o) Voltage cut-off protection (p) Re-setting mode - Manual/Auto option provided with programmable time delay. (q) Display mode & parameters - Single line LCD Panel, I/P & O/P voltages (Line & Phase), O/P currents & frequency, fault annunciation etc (r) Average correction rate - >30 V/Sec (Line to Neutral) Make : Intelle power system or equivalent makes as approved by GE. Surge Protector:- (a) Type 1+2, (b) Rating - 100KA, (c) 3P+N, (d) Conforms to IEC 61643-11. Make:L&T, Cat No : AUSP123PN100 or techno-commercially equivalent in ABB/legrand

Excavation in trenches n.exc 1.5 m wide and n. exc 1.5m depth for errecting of poles, laying of cables and getting out in hard/dense soil complete all as specified and as directed.

Returning, filling in, including spreading levelling, watering and well ramming in layers not exc 25 cm in depth complete all as specified and as directed.

Removing excavated material (soil) to a distance n.exc 50 m and depositing where directed at a level n.exc 1.5m above the starting point all as specified and as directed.

Supply and laying sub class 'B' bricks of size 230 x 115 x 75 mm laid across the cable for cable protection, above sand complete all as specified and as directed.

Supply and laying light grade GI Pipe (ISI Marked) of 50mm dia for cable protection to be fixed on wall with necessary clamps or in road crossing, complete all as specified and as directed. Make: TATA/Jindal/Prakash Note : Rate qouted shall include MS clamps of required size wherever GI pipes are to be fixed on wall,poles etc

M & L for cutting the existing hard standing /PCC /WBM road at a depth not less than 45 cm and 25 cm in width for passing of cable through GI pipe, returning filling in, complete including finishing the surfaces by providing top 30 cm thick cement concrete type B-1 (1:2:4) using 20 mm grade aggregate, bottom filled with excavated earth and remain finishing to a uniform smooth surface complete all as specified and directed.

Note for Item Nos 86, 90 & 91 : Any damages made to the existing services of MES/WCB/TNEB/Other Depts like HT/LT UG cables, Water Supply/Sewage Pipe lines, OFC/BSNL/ITRC/Signal communication cables etc. during the excavation/road cuting etc. progress of the work shall be made good with proper jointing kits etc. as per original to the entire satisfaction of Engr-in-Charge & GE & the cost of the same is deemed to be included in the unit quoted rates. Decision of the AO shall be final & binding in this matter.

Supply and laying in trenches/through pipes or bare in road crossings/ paths /drains /ducts /floors /along poles/ walls/ ceilings/ equipments etc. Cable Under ground, armoured, XLPE insulated with stranded aluminium conductor, 1100 Volts grade of cross sectional area, 3.5 Core 70 Sqmm incl connecting with suitable glands, lugs etc all as specified and as directed. Make: Havells/Finolex/Polycab

M & L for providing sand cushioning for protection of UG cable in trenches with Coarse River Sand/ Riddled Earth of approved quality as approved in writing by GE including filling, spreading and punning down to desired thickness complete all as specified and as directed.

m/s prabakaran

AR Mohamed Yakub and Co

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