23/2023-24/BSNL/CD/BILASPUR date 09.01.2024

Amount

Providing, supplying and fixing of missing members galvanised steel tower material with average mass of zinc coating of 610gm/sqm (approx. 85 micron) consisting of angles, flats, base plates, gusset plates, ladders, connecting plates, bolts & nuts, plain/spring washers including making holes of required size, all fabricated as per approved drawing & specification for erection of tower. The galvanising shall be as per IS:4759. The structural steel for tower shall confirm to IS:2062 & fabrication shall be as per IS:4757. The structural steel section produced by secondary producer may be used for fabrication of tower materials. The tower shall be mounted by galvanised fastners with washers.

Material Supplied by the Department.

Material Supplied the Agency.

Tightening of nuts and bolts of 40 Metre Light Weight Narrow Base Tower i/c mounts, platforms, vertical cable tray, Horizontal cable tray etc. all with Torque wrench etc. including pasting of Zinc rich paste wherever galvanised coat has peeled off etc. all complete and as per the direction of Engineer in charge. (Note:- The rate of this item shall include the cost of all labour, material, T&P, Torque Wrench, other equipments etc required for all operations specified above i/c scaffolding, safety belt, insurance of labour etc. ) Nothing extra shall be paid over the above rate.

40 Mtr height.

SITC of 48 Volts DC LED based aviation obstruction light suitable for an input supply of 48 Volts complying to ICAO requirement (low intensity/Type B) on the top of the existing communication tower complete with necessary accessories/clamps including supplying & fixing suitable light controller unit having photo sensor for automatic dusk to dawn operation etc as required complete as per directions of Engineer-in-charge.

Supplying & fixing with 2x1.5mm copper unarmoured cable & providing end termination complete as per the directions of Engineer-in-charge.

Painting two or more coats with high gloss synthetic enamel paint of approved brand and colour (international white and international orange) over one coat of etching primer (BISON wash primer or equivalent) and second coat of BISON HB Zinc phosphate primer or equivalent of approved brand as per recommendation of International Civil Aviation rules in 40 metres Galvanised structural steel tower. (NOTE: Rate includes painting of tower, platform, antenna mount, ladder, vertical tray, horizontal tray, post etc)

40 Mtr height.

Carriage of missing members/gusset plate etc. from the Telecom Store Max-I T E Compound Babupara Ambikapur to the work site by mechanical transport (Approximate distance within 100 Km) including loading, unloading, stacking, watch and ward etc. complete as per the direction of Engineer in charge.