Bharat Sanchar Nigam Limited Tender

Checking, Maintenace and Repair of all Components of tower as per approved drawing in all respect and as per the directions of Engineer- in-charge as follows: (a) Checking the connection of tower members and tightening of loose nuts and bolts using torque wrench. Any spare hole shall be filled with bolts and nuts of appropriate size. (Supply of the new nut bolts, washers shall be paid under the relevent item seprataly while the other consumables are to be arranged by the contractor at his cost). (b) Replacing the distorted, bent, corroded members and worn out bolts and nuts. (Supply of the new GI members, nut bolts, washers shall be paid under the relevent item seprataly while the other consumables are to be arranged by the contractor at his cost). (c) Providing and fixing the missing members, nuts, bolts and spring washers. (Supply of the new GI members, nut bolts, washers shall be paid under the relevent item seprataly while the other consumables are to be arranged by the contractor at his cost). (d) Maintenance of ladder and its safety rings, climbing facilities, platforms and its handrail catwalks and antenna fixing mounts including tightening of nuts and bolts to make it secure and safe. (e) Checking the base plate against corrosion and tightening of the base plate fixtures with tower main leg including nuts and check nuts. (f) Maintenance of proper drainage in and around the foundation including removal of unwanted vegetation growths all complete as per the direction of Engineer- in-Charge. (g) Check the verticality of tower using theodolite as per provision prescribed in IS 12843 1989. The tower alignment to be checked with theodelite on two perpendicular surface. This does not include re-erection if required to achieve verticality). (The required theodolite will be arrange by the contractor at site of work ). (h) Checking the gantry and its ground supports (This does not include cost of concreting if necessary to improve the support). (i) Providing and applying rust removing solution and Zinc Spray on tower rusted area whereevr necessary as per manufracture recommendation. This will include other operations including cutting of unuseable nuts/ bolts where necessary.

(j) Repair and maintenance of lightening arrester and aviation lamp including checking insulation of cable/ position of GI flat/strip and bus bar fixtures and taking necessary corrective action for making the lightening arrester/ aviation lamp functional. (Replacement of lightening arrester/ cable/GI strip insulation if necessary shall be paid separately under relevant item). (k) Reporting the earth value of the tower earth in Ohms. NOTE-I: Rate includes cost of all operations mentioned above at S.No. (a to k) including hire charges of tools, plants and machineries, Binaculars for inspection, insurance premium of labours etc. and nothing extra shalll be paid on this account.

(a) Pole Structure upto 9 mt Height RTT