REPAIR / MAINT / IMPV OF ES INSTALLATION / BLDG ETC AT JALAPAHAR / KATAPAHAR UNDER AGE(I) DARJEELING

Amount

Taking down old existing air termination rod from building roof and keeping in safe custody for re-use/ taken as such to credit all as specified and directed.

Taking down old existing aluminum strip of size 25 x 3.15 mm and keeping in safe custody for re-use/ taken as sch of credit all as specified and directed.

Taking down old existing GI strip of size 32 x 6 mm and keeping in safe custody for re-use/ taken as sch of credit all as specified and directed.

Taking down old existing earth test point from building/walls and keeping in safe custody for re-use/ taken as such to credit all as specified and directed.

M&L for air termination, single pointed aluminium rod 12mm dia and 300mm long, complete all as specified and directed.

M&L for test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos. 8mm dia 25mm long hex. head screw, complete all as specified and directed.

M&L for aluminium strip 25 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground, complete all as specified and directed.

M&L for galvanised iron strip 32 x 6mm buried in ground, complete all as specified and directed.

Supplying and fixing in repair FRP / SMC / Thermoplastic box suitable for installation of test terminal block of size 250X200X100mm with front operating door, complete all as specified and directed. Make: Syntex/SMC/Hensel

Demolition of cement concrete (unreinforced) in ground floor and pavings not exc 15 cm thickness (below or above ground level), complete all as specified and directed.

M&L for plain cement concrete (1:3:6), type C2 (using 40mm graded crushed stone aggregate) as in foundation filling and mass concrete, complete all as specified and as directed.

Supply and laying 25mm bore GI steel tubing (light grade) as in old/new position as per site requirement with all fitting clamp nuts, bolts and washer for extension of height of air teminal etc., complete all as specified and directed.

Supply and laying 40mm bore GI steel tubing (light grade) as in old/new position as per site requirement with all fitting clamp nuts, bolts and washer for extension of height of air teminal/protection of GI/Aluminum strip etc., complete all as specified and directed.

M&L for Earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6.0 mm thick, buried directly in ground (earth pit not less than 2.25 mtrs deep below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level connected to galvanized iron strip 32x6 mm as earthing lead by mean of bolts , nuts, check nuts and washer of galvanized iron or steel all as shown in electrical plate No 3 of SSR part I of 2009 connected to earthing test point all as specified complete with excavation and earth work PCC pit with 50 mm thick RCC cover having suitable handle (10 mm MS Rod) 20 mm dia GI medium grade ISI marked watering pipe with GI funnel with wire mesh 40 mm bore GI Pipe ISI marked (light grade) for protection of earth lead conductor all as directed and testing on completion, all as specified and directed.

S&F of vertical three pole & neutral (VTPN) DB with sheet metal enclouser 415 volts, 4 way with rated bus bar, Double door, IP 54, IK 09 incl incomming MCCB of Capacity 100 Amps, 25 KA, 4 pole, 415 Volt, ics=icu=100%, complete all as specified and directed.

Supply and fixing of 240V, 10KA 'C' curve miniature circuit breaker (MCB) of single pole (SP) and current carrying capacity of 5 To 32 AMP in the MCB DB complete with connection testing and commissioning, all as specified and directed.

Supply and fixing ON load Change over switch of capacity 125 Amps 415 Volts 4 Pole fixing , in panel and making the good distrubed surface complete with all accessories, including taking down of old Unsv change over switch and reconnecting the cables with proper lugs, all as specified and directed. Note Change Over shall be as per site requirement/ site condition only.

Demolition of cement concrete (unreinforced) of any description and in any position not otherwise specifically provided for, complete all as specified and directed.

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

Supply and fix street light feeder looping box of size 200mmx150X100mm with hinge opertaed front opening door, suitable for mounting on pole, provision for suitable holes at bottom side suitable for cable entry. MCB duly mounted on DIN Rail, provision of suitable connector for three phase connections/ suitable Al busbar TP-N, loop in and out of 10 to 16 sqmm 2/4 core Al armoured cable and connection of 1.5 sqmm three core pvc insulated copper wire complete fixed to pole with GI clamps nuts, bolts and washer of suitable size including takng down of old box, complete all as specified and directed. Note : MCB 6 Amps and 3 core copper wire shall be measured and paid sepreately under relevant Item.

M&L for preparation of old painted steel surfaces (removing rust from any kind of steel surfaces)of any description over 10 cm width or girth and applying one coat of synthetic enamel paint over a coat of red oxide primer, complete all as specified and directed.

Preparation of old painted surface of brick/stone/plaster surface plain or moulded, n exc 10cm width or girth and painting by one coat of 1st quality Synthetic enamelled paint, over a coat of priming paint plaster coat, complete all as specified and directed.

Material and Labour for earthing complete with Copper earth plate electrode 600 x 600 x 3.15 mm thick buried directly in ground (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 20x3mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel all as shown in electrical plate No 3 of SSR Pt I including necessary excavation and earth work PCC (1:3:6) type C-1 with 50 mm thick pre cast RCC (1:2:4) type B-1 cover slab (reinforced with 8 mm dia deformed bar @ 15 cm C/C both ways and suitable handle of 10 mm dia round bar) including providing charcoal or coke and common salt in alternate layers of 15 cm compacted thickness all around the earth electrode, with funnel and 20 mm bore galvanized iron watering pipe (medium grade) wire mesh, lugs, complete in all respect, GI earth strip protected by 40 mm bore (light grade) galvanized iron pipe and other end connected with main switch board or earthing test point as directed including proper lugs, including disposal of soil to a distance not exceeding 50 mtr and necessary testing on completion, all as specified and as directed.

Note 1:- (Applicable for all parts/items) : The bidders/contractors are advised to read tender document, all drawings & all corrigendum / amendments and general condition of contracts before entry / quoting the rates. Note 2:-The contract sum shall be arrived at after deducting amount of schedule of credit from the total quoted amount.

GEETA CONSTRUCTION (BID ID -3168313)

Darjeeling Enterprises (BID ID -3168111)