Providing and fixing of Lightening arrestor for complete protection from lightening at inside and outside of Sawang Washery.

Amount

Erection of metallic pole of following length in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40mm nominal size) foundation including excavation and refilling etc. as required (Above 10 mtr. To 12 mtr.)

Supplying & erection of stay set complete galvanized with 19/20mm dia x 1.8 metres long stay rod, anchor plate of size 45cm x 45cm x 7.5mm thick, thimble, stay clamp, turn buckle ( 20mm x 60mm), 7/4.00 mm dia G.I. stay wire and strain insulator etc. in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone 40mm nominal size) foundation including excavation and refilling etc. as required

Supplying of channel iron 75mm x 40mm x 7.14Kg. Per meter pole cross arm 2 wire O/H line complete with clamp bolts and nuts etc. including drilling holes for insulator pins, bolts and nuts etc. and painting with primer and finish paints as required

Providing and fixing 25mm x 5mm G.I. strip on surface or in recess for connection etc. as required

Supply of lightening arrestor rod made of copper having length 1 mtr. X 20mm

Supply of nut & bolts

Erection of lightening arrestor of made od of copper having length 1 mtr. X 20 mmm

Supply and installation of single phase surge protector

Supply of earthing electrode having two custom made G.I. tubes (Galvanized 80 micos, minimum one inside the other of length 3 mtr. (outer dia 80mm) filled with conductor rich crystalline mixture (CCM)

Backfill compound (bag of 25 Kg. each)

Earth work in excavation by mechanical means (hydraullic excavator) / manual means over areas (exceeding 30cm in depth, 1.5m in width as well as 10 sqm. on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, as directed by engineer -in-charge hard rock (blasting prohibited) 1m x 1m x 2.7m x 8 nos. = 21.60 cum

Total impact of GST for the purpose of CTC