revised estimate for external electrification of govt. middle school chitoriya at village chitoriya under vidisha ( r ) d / c of o&m division vidisha.- 1 back filling of poles with boulders.1 2 1 ph serv conn box with one incmng upto25 mm2 and 8 no outgoing up to 10 mm2. 3 stay wire 7/3.15 mm.(7/10 swg) 4 earthing coil of 115 turns of 50 mm.dia and 2.5 mtr lead of 4.0 mm g.i wire 5 earthing for pcc pole 4.00 mm-8 swg g.i wire- 0.8 kg, per pole 6 m.s.nuts and bolts 7 a.b cable hanging clamps/ tension clamps (galvanized) as per enclosed drawing 8 suspension clamp for lt ab cable 9 clamps for neutral for ab cable 10 piercing connector type-i, 1p/3p (main 16-50sqmm tap-off 16-50 sqmm 11 piercing connector type-ii (main 16-50 sqmm tap-off 16-50 sqmm) 12 clamp for 140 kg pcc pole ms flat 50x6 mm 13 stay set complete without stay wire 16 mm. (painted) 14 stay insulators 90x65mm 15 concreting of stay (16 mm / 12 mm) @ 0.2 cmt. per stay 16 stone block/pre cast block for base pedding (450x450x75mm) 17 gst on material @ 18 % 18 erection cost