PROVN AND IMPROVEMENT OF EARTHING PITS AND LIGHTENING ARRESTERS WITH ASSOCIATED WORKS AT AF STN CHANDIGARH

Amount

Dismantling and taking out old and unserviceable earthing complete including detriorated earth plate and GI pipe etc and removal complete all as specified and directed.

Dismantling and taking out old and unserviceable GI /aluminium /copper main earthing leads/ lightning conductors and removal complete all as specified and directed.

Material & labour for earthing complete with galvanized steel earth plate electrode 60 cms x 60 cms x6.00mm thick buried directly in ground vertically to a depth not less than 2.25 meter below ground level with top edge of the plate not less than 1.5 metre below normal ground level earth plate surrounded by 15 cm thick and packed alternate layers of charcoal dust and common salt, earth lead wire 4.0 mm by means of bolts ,nuts ,check nuts and washers of galvanized iron or steel and thimbles and other end of the earth wire connected to main switch board and protected by galvanized iron or steel pipe light grade 15 mm bore and water pipe 20 mm bore GI light grade (ISI marked ) with funnel and wire mesh ,including all necessary excavation and earth work PCC chamber in cement concrete 1:3:6 type C-2 and RCC cover and all as shown in electrical plate No 5 of MES Sch Part-1 (2009), complete all as specified.

Ditto all as per Ser Item No 3.00 but using galvanised iron strip 25 x 4 mm as earthing lead complete all as specified.

Ditto all as per Ser Item No 3.00 but using copper plate 60 cms x 60 cms x 6mm thick and 20 x 3 mm copper strip as earthing lead complete all as specified.

M&L for Chemical earthing using mixture of copper sulphate (CuSo4) - 100 Kg, common salt-200 Kg and charcoal - 300 Kg complete with copper plate 90 cm x 60 cm x 5 mm thick buried directly in ground vertically at a depth not less than 3.50 metre below ground level with top edge of earth plate at a depth not less than 5 metre below normal ground level and the mixture should be filled 15 cm above top edge of earth plate to achieve result less than one ohm resistance including copper strip 32 x 6mm size (upto test point) by means of brass bolts, buts, check nuts and washers earth strip protected by galvanized steel pipe 40 mm bore (light grade) connected to test point all as shown in electrical plate No 3 of SSR - 2009 Part-I and including necessary excavation and earth work in any type of soil, 25 mm bore medium grade GI pipe for watering, funnel with wire mesh, PCC (1:3:6). type C-1 chamber pit cover of precast RCC (1:2:4), type B-1 reinforced XPM of weight not less than 4 Kg/Sqm and MS frame etc, complete all as specified. Note :- (i) The unit rate includes copper earth strip and protection pipe upto (maximum 7.5 metre from earth plate) earth point/test point. (ii) The complete earth system shall be guaranted to give result less than 1 ohm resistance. (iii) Complete earthing will be redone at no extra cost to department, if result is found below 1 obm.

M&L for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required 4 mm dia galvanised iron or steel wire.

Dito all as per Ser Item No 7.00 but 25 x 4 mm galvanised iron strip.

Dito all as per Ser Item No 7.00 but 32 x 6 mm copper strip.

Dito all as per Ser Item No 7.00 but 20 x 3 mm copper strip.

Excavation in trenches in soft/loose soil n.exc 1.50 mtr in depth and n.exc 1.5 mtr wide and getting out including forming bottom surface to required level complete all specified and directed by Engineer-in-Charge.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exc 25 cm. thick in soft/loose soil after the cables are laid and tested complete all specified and directed by Engineer-in-Charge.

Removal of surplus soil to a distance n exc. 50m and depositing where directed at a level n exc. 1.5 m above the starting point complete all specified and directed by Engineer-in-Charge.

S/F Steel water tubes, medium grade, ISI marked, galvanised, steel ( GI) 15mm bore with all fittings, laid in trenches complete.

S/F Steel water tubes, medium grade, ISI marked, galvanised,steel ( GI) 15 mm bore with all fittings, and fixing complete to wall and ceiling or laid in floor all as spd

S/F Bib taps cast copper alloy with crutch or butterfly handle, screwed down, screwed for iron pipe or for brass ferrule 15mm bore complete.

Cutting existing steel tubing 15 mm bore for alterations or additions in existing steel tubing for alterations complete all as specified.

S/F Steel water tubes, light grade, ISI marked, galvanised, steel ( GI) 40mm bore with all fittings, laid in trenches complete.

Supply and installed Water heater storage type, 25 liters capacity 3 star rated with all accessories 230V AC, with all mounting fasteners for fixing of geyser all as directed by Engineer -in-charge. Make : Recold/Bajaj/Usha Lexus

Supply and fixing PVC, heavy duty, connection 450mm long with flare nut and washers for inlet (cold water ) connection, all as speciifed and directed

Supply and fixing Chromium plated brass tube 1/4" dia 450mm long with Chromium plated brass adapters 02 Nos 15mm size including heat resistant rubber washers complete for Hot water connection all as specified and directed

Supply and fixing, circuit/sub main wiring two run of 2.5 Sqmm and one run of 1.5 Sqmm of FRLS PVC insulated copper conductor in and including recessed steel/ PVC conduit complete as specified

Supply & Fixing gang box with 15 Amps switch and socket combination

Supply and fixing of MCB SP 230 Volts 16 Amps (Make : Legrand/ABB). Complete all as specified and directed by Engineer-in Charge

Supply and fixing bib tap Chromium plate alloy ISI marked with crutch or butterfly handle screwed down, screwed for iron pipe or for brass ferrule of size 15mm bore complete all as specified.

Supply and fixing stop valve Chromium plate alloy ISI marked with crutch or butterfly handle fancy type screwed down, screwed for iron pipe or for brass ferrule of size 15mm bore complete all as specified.

Supply and fixing for non return valve 15mm size brass made ISI marked for iron pipe 15mm bore complete all as specified.

Note:- Amount of credit of Rs. 45750.00 for retrieved materials is mentioned in Schedule of Credit Page No 106 of tender documents in pdf form which will be deducted offline while acceptance of tender.

R D Bansal

HARISH SALES CORPORATION

Babu Ram Sud and Sons

ELECTROMAX OF INDIA