Preventive maintenance of main feeder from 132 KV 11 KV OH line, GT feeder from GT Gopalichuck via HMP 11 KV OH line and Balihari Basti LT OH line to avoid frequent breakdown under KB10-12 Pit Colliery.

Item Description/ Heading

A) FOR main feeder 11 KV O/H line maintenance-Opening jumper for searching faults & after megguring re-jumpering

Opening jumper for changing of faulty Disc insulator

Dismantling of over head lines comprising of Copper/Aluminium over head conductor, G.I wire, cross arms, insulators etc as required (CPWD SOR' 2012, P-40, 12.40) ( 770 Mtrs Conductor @ 0.726 Kg/Mtr = 559.02 Kg, 12 Disc 12x7 = 84 Kg, 4 Pin 4x3 = 12 Kg, Total 559.02+84+12 = 655.02 Kg)

Supply & erection of 11 KV Disc insulator for O/H line with galvanised insulator fittings, bolts, nuts, washers etc. as required (CPWD SOR' 2012, P-42, 13.11)

Supply & erection of 11 KV Pin insulator complete with large steel head G.I pin, nuts, washers etc. as required (CPWD SOR' 2012, P - 42, 13.10)

Erection of Conductor meters of 7/3.35 mm to 7/4.00 mm diameter and above including binding etc (CPWD SOR' 2012, P-39, 12.22) 770 Mtrs Conductor (including fallen 110 mtrs) @ 0.726 Kg/Mtr

Making new jumper after changing of new Disc insulator

Dismantle of faulty lighting arrestor

Opening burnt cable jumper from O/H line

Taking down of one no. PVC insulated power cable of 11 KV grade of 240 sq mm for making fresh lead (CPWD SOR' 2012, P-28, 8.3.2)

Supplying and making outdoor cable end jointing with cast resin compound, including lugs and other jointing materials, for 240 sq mm size of 3 core, XLPE Aluminium conductor cable of 11 KV grade (CPWD SOR' 2012, P-34, 10.2.3)

Laying/Hanging of one no. PVC insulated power cable of 11 KV grade of 240 sq mm after making fresh lead (CPWD SOR' 2012, P-28, 8.3.2)

Making new fresh cable jumper with O/H line

Tree branches and bush cutting/trimming

B) for G.T feeder 11 KV O/H line maintenance- Opening jumper for searching faults & after megguring re-jumpering

Opening jumper for changing of faulty Disc insulator

Dismantling of over head lines comprising of Copper/Aluminium over head conductor, G.I wire, cross arms, insulators etc as required (CPWD SOR' 2012, P-40, 12.40) ( 220 Mtrs Conductor @ 0.726 Kg/Mtr = 159.72 Kg, 4 Disc 4x7 = 28 Kg, 3 Pin 3x3 = 9 Kg, Total 159.72+28+9 = 196.72 Kg)

Supply & erection of 11 KV Disc insulator for O/H line with galvanised insulator fittings, bolts, nuts, washers etc. as required (CPWD SOR' 2012, P-42, 13.11)

Supply & erection of 11 KV Pin insulator complete with large steel head G.I pin, nuts, washers etc. as required (CPWD SOR' 2012, P - 42, 13.10)

Erection of Conductor meters of 7/3.35 mm to 7/4.00 mm diameter and above including binding etc (CPWD SOR' 2012, P-39, 12.22) 770 Mtrs Conductor @ 0.726 Kg/Mtr

Making new jumper after changing of new Disc insulator

Dismantle burnt cable jumper from O/H line

Taking down of one no. PVC insulated power cable of 11 KV grade of 185/240 sq mm for making fresh lead (CPWD SOR' 2012, P-28, 8.3.2)

Supplying and making outdoor cable end jointing with cast resin compound, including lugs and other jointing materials, for 185/240 sq mm size of 3 core, XLPE Aluminium conductor cable of 11 KV grade (CPWD SOR' 2012, P-34, 10.2.3)

Laying/Hanging of one no. PVC insulated power cable of 11 KV grade of 185/240 sq mm after making fresh lead (CPWD SOR' 2012, P-28, 8.3.2)

Making new fresh cable jumper with O/H line

Tree branches and bush cutting/trimming

C) FOR Balihari Basti LT O/H line maintenance- Transportation of pole from store to site

Erection of metallic pole of 8 to 10 metre length in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size)(CPWD SOR' 2012, P-36, 11.3.3)

Fabrication & erection of bracket & clamps

Supply & erection of MS Nut & Bolts

Supplying and erection of 100 mm X 110 mm shackle insulators with G.I bolts, nuts, and straps etc. as required (CPWD SOR' 2012, P-39, 12.17)

Transportation of conductor at site (Semi Skilled)

Dismantling of over head lines comprising of Copper/Aluminium over head conductor, G.I wire, cross arms, insulators etc as required (CPWD SOR' 2012, P-40, 12.40) ( 1335 Mtrs Conductor @ 0.394 Kg/Mtr = 525.99 Kg, 39.73 Kg bracket & clamps Total 525.99+39.73 = 565.72 Kg)

Erection/Sagging of Conductor 7/2.11 mm to 7/3.00 mm diameter and above including binding etc (CPWD SOR' 2012, P-39, 12.21) 300 Mtrs @ 0.214 Kg/Mtr

Erection of Conductor of 7/3.35 mm to 7/4.00 mm diameter and above including binding etc (CPWD SOR' 2012, P-39, 12.22) 1580 Mtrs @ 0.394 Kg/Mtr

Damage and weak jumper repairing

Dismantle of pole/street light standard/strut embedded in cement concrete foundation etc as required (CPWD SOR' 2012, P-40, 12.42)

Transportation of pole from site to store

Erection of cradle guard with G.I 8 no.

Tree branches and bush cutting/trimming different LT line (Semi Skilled)

Total impact of GST for the purpose of CTC