Name of Work: Provision for lightning Protection System in line with revised OISD 180 at Gurgaon BP
Sl. No.
Item Description
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Provision for lightning Protection System in line with revised OISD 180 at Gurgaon BP
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Supply & drawing/laying, jointing, connecting, testing and commissioning ofearth strip/copper strip/GI wire for earthing and lightning protection under or aboveground complete as per specification for the following : iii) 50 x 6 mm G.I. Strip. Supply & fixing Insulators 60mm below GI Strip grid, fixing of Air Termination rod GI 20 MM, 3 meter each. Providing earthing with 80 mm dia,3.0 M long GI (Heavy duty) perforated pipe as per IS:3043 (with latest ammendment) including providing suitable earth bus for interconnection, providing a mixture of salt & charcoal, making earth pit chamber with chequered plate cover as per standard Drwng.etc. all complete as per specification & direction of Engineer-In-charge.
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Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees & saplings of girth upto 30cm measured at a height of 1m above ground level and removal of rubbish outside the site and to an unobjectionable place. Earth work in excavation by mechanical means (Hydraulic excavator) / manual means over areas (exceeding 30 cm in depth, 1.5m in widthas well as 10 sqm on plan) including taking out and disposal of excavated earth within or outside site to unobjectionable place and lift upto 1.5m, as directed by Engineer-in-charge. Disposed earth to be levelled and neatly dressed. ii) Ordinary rock. Demolishingcement concrete manually/ by mechanical means including disposal of material outside premises at an unobjectionable place as per direction of Engineer-in-charge.i) 1:3:6 or richer mix (i/c equivalent design mix).Providing and laying in position cement concrete of specified grade excluding cost of centering & shuttering. All work up to plinth level: i) 1:1:2(1 Cement : 1 Coarse Sand : 2 Graded stone aggregate of 20mm)
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