REPAIR/REPLACEMENT OF UNSV LIGHTENING CONDUCTOR EARTHING TEST POINT AT ESH SHED, STORE ETC IN AA BANAR

Amount

Taking out carefully existing aluminum strip of any size including porcelain / PVC insulators and air termination rods from roof/wall at a height upto 10mtr and seperating the serviceable/unserviceable material complete as directed.

Taking out carefully existing GI strip of any size including porcelain / PVC insulators and seperating the serviceable/unserviceable material complete all as directed.

Fixing only aluminum strip as retrieved from item No 1 in position including provision of new insulators and proper layout on roof/wall at a height upto 10mtr as directed by Engr-in-Charge.

Fixing only GI strip retrieved from item No 2 in position including provision of new insulators and proper layout on roof/wall at a height upto 06mtr and burried in ground depth not lesss than 60cm all as directed by Engr-in-Charge.

S&F GI strip of size 32x6 mm including mounting on including PVC/Porcelain insulators on wall and burried in ground depth not less than 60cm in ground complete all as specified and directed by Engineer-in-Charge.

S&F aluminum strip of size 25x3.15mm incl saddles / supporting insulators to run over the roof complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of gun metal test point terninal block of size 75x75x25mm drilled and screwed including 3 Nos 8 mm dia 25 mm long hex head screw mounted on PVC Box of size 100x100x50mm fixed on wall complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of air termination aluminium rod 12mm dia 300mm long complete all as specified and directed by Engineer-in-Charge.

Supply and fixing in replacement of GI tubing 50mm dia medium grade in incl necessary fittings for lowering in borewell of depth upto 30mtr and grouting at roof top in cement concrete to mount the air termination rod complete all as specified and directed by Engineer-in-Charge. Note: PCC work for grouting on roof shall be measured and paid seperately under relevant item of Schedule.

M&L for earthing in replacement with galvanized steel earth plate electrode of size 600 x 600 x 6 mm buried directly in ground earth pit not less than 2.25 mtr below normal ground level with top edge of earth plate should not less than 1.5 mtr below normal ground level and connected to galvanized iron earth, GI strip of size 25x4 mm dia by means of bolts, nuts, washers of galvanized iron or steel all as shown in electrical plate No.3 of MES SSR Part I connecting to earthing test point ,PCC pit with angle iron frame 300 x 300mm size, Machine cut Jodhpur stone slab pit cover 300x300 mm size with 12mm MS Rod handle for lifting, 20mm dia medium grade watering pipe with funnel, wire mesh, common salt, charcoal, necessary excavation and earth work complete all as specified and directed by Engr in Chanrge. Note :- (i)The earth pit shall be refilled by boulders free from vegetable soil. (ii) Earthing shall be tested by contractor in presence of JE /Engr-in-Charge. Record shall be maintained. Payment shall be admissible only after satisfactory test results.

Material and labour for replacement of unserviceable existing earthing with bore well earthing with the help of mechanical boring machine of 150 mm dia- 30 mtr depth including supply and fix 160 mm dia (O.D), UPVC pipe 6 kg/sqcm rating -06 mtr long with the help of suitable size clamp with nut bolt and washer -01 No, grouting of bore well with PCC (1:2:4) type B-1 and Brick masonry pit of size 45x45x45cm complete and give the minimum earth test result below 1 Ohm complete all as specified and directed by Engineer-in-charge.

M&L PCC (1:3:6) type C-I using 20mm graded stone aggregate for coping of GI pipe at roof top with form work as required complete all as specified and directed.

Material and labour for marking of earth results /next due date etc on wall by using black enamelled paint as a background and letters will be white in colour on 40cmx40cm span complete all as specified and directed by Engineer-in-Charge.

M & L for refixing of earth identification board made out of MS Sheet with angle iron spike including making hole in ground for grouting the board and painted with black enamelled paint as background and write the descreption of earthing No,date of test, results with white enamelled paint. Note :- PCC will be measured & paid separately in relevent item of Sch.

SHRI BHIKSHU ART AND CONSTRUCTION CO

M/s Vishaka Enterprises