Annual Maintenance Contractor for the work of erection and dismantling of HT OH line in mines due to advancement of mine for power to HEMMs and HT pumps as and when required for the period of 730 days at Bina Project

Amount

Supply Item

Supply of Stay rod complete set 5/8"X6'

Supply of earthwire 7/16SWG

Supply of stay wire 7/10SWG

Supply of Hardware tension type for wolf / dog / 148 sqmm conductor.

Supply of MS bolt nut 5/8X3” and 5/8X8''

Erection Part

Supply of safe and maintenance free earthing eletrodes(GI pipe 40 mm dia and 03 mtr in length as secondary eletrode and 02 Nos hot dipped galvanized strip 25 mm x l mm length 03 mtr. As primary eletrodes including making of earth pit chamber of suitable size with cover plate having locking arrangment.

Erection of rail / tubular pole 11/13 mtr including digging of pole pit and concreting cement ( 01 bag/Pole) with mine bolder ( Pole pit size for 0.6X0.6X1.6 mtr

Erection of Rail / tubular 16 mtr long including digging of pole pit & concreting with cement, pole pit size 0.6X0.6X2.2 Mtr.

Fixing of stay rod including digging of stay pit and concreting with cement(1/2 bag/stay rod), fixing of stay wire ( stay pit size 0.6X0.6X1.2 mtr.)

Fixing of DC channel on double pole / Triple Pole/Four Pole

Fixing of guarding brackets/bracing

Fixing of single bracket in single pole

Fixing of pin insulator 11 KV Grade

Fixing of disc insulator 11KV Grade

Fixing of stay/strain insulator 11 KV grade

Stringing of ACSR conductor wolf/AAA148sqmm

Stringing of earth wire 7/16 SWG and stay wire 07/10 SWG

Fixing of PG clamp/ jumpering .

Fixing of top bracket in single pole

Fabriction of M S Channel 100x50x06 mm and M S Angle 50x50x6 mm Size(Cutting, welding, Jointing and hole as per requirement) for DC cross arm , single bracket, top bracket , clamps etc as per instruction of EIC(Cutting and welding eletrode will be provided by contractor)

Dismantaling of ACSR/AAA conductor wolf / dog including insulator & bracket.

Dismantling and collection of earth wire.

Dismantling of DC cross arm & channel

Digging out 11/13/16 mtr long of rail / tubular pole.

Collection , transportation, shifting, loading and unloading of 11/13/16 rail/tubular pole for erection and after digging out at specific places as pe instruction of EIC

Collection of ACSR wolf / dog /AAA 148 sqmm including insulators & brackets.

Fabriction of side clamp, earthing clamp including Cutting, welding and hole as per requirement) as per instruction of EIC(Cutting and welding eletrode will be provided by contractor and steel material will be provided by NCL)

Painting with two coat aluminium paint of approved brand to give an even space for 1070 nos. pole of size 13 mtr long each having 5.30 sqm area and 60 nos. pole of size 16 mtr long each having 6.0sqm area ( per year) for 2 years.

General electrical maintenance of HT OH line / fault rectification in back shift mine by engaging 02 nos Skilled manpower daily.

Total impact of GST for the purpose of CTC

M/S SARCO ENGINEERING WORKS (BID ID -1122548)