Bharat Sanchar Nigam Limited-BSNL has published Tender For Maintenance Work Of Gbt / Rttgsm Towers Including Supply Of Missing Bolts/Members, Checking & Tightening Of All Bolts, Painting And Allied Work Of Different Heights Of Towers Located At Various Islands In Lakshadweep Under Ernakulam Ba (Fy 2023. Submission Date for this Tender is 08-05-2024. Radio Antennas Tenders in Lakshadweep District Lakshadweep. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Re-painting of GBT/RTT communication tower (Light / Heavy weight)including ladder, antenna mounts, cable trays, gantry etc. as per the following operations: a. Cleaning of the tower to get rid of peeled off paint, dust, rusting, dirt etc. by sand papering and finally with a clean cloth. b. While cleaning of tower, all bolts and nuts shall be tightened and any missing nuts / boltsshall be supplied and fixed which shall be paidfor extra. c. Over the cleaned surface of tower a coat of Etch primer [which consists of polyvinyl butyral phosphoric acid catalyst and zinc chromate base and are supplied separately. They should be mixed before use in the specified ratio of four parts base to one part catalyst or as specified by the manufacturer] shall be applied uniformly. d. Over the etch primer coat, one coat of zinc chromate primer of approved brand and manufacturer shall be applied. e. Finally two coats of enamel paint shall be applied as per aviation guidelines and ad per the directions of Engineer-in-charge. [paint / primer used shall be of reputed manufactures like Asian/Shalimar/Berger ]. Each item of work from (a) to (d)shall be done after the inspection of the BSNL officer . |
| 2 | 40 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 10.0MT including gantry. |
| 3 | 30 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 7.0MT including gantry. |
| 4 | 9-15 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 3.0MT including gantry. |
| 5 | Supplying at the site of work the Hot Dip Galvanized members for the missing members (if any) of Tower, Working Platform, Safety Cage, Ladder, Wave Guide Rack, Antennae Fixture etc. of required section, shape and size including Drilling Holes for fixing bolts etc. all in conformity with the approved drawings of BSNL and as per the directions of Engineer-in-charge and shall be made out of primary source ofstructural steel of approved make: viz. SAIL, TISCO, RINL etc. NOTES: (a) All material shall be Hot Dip Galvanized. The fabrication & galvanizing shall be as per the relevant IS code. (b)Weight of each member supplied shall be taken for payment purpose. (c)The Rate includes the cost of all material and labour required for all the operations mentioned in the item including all carriage, taxes and other contingencies. |
| 6 | Checking & Tightening of all Nuts & Bolts of all sizes with TORQUE WRENCH by settingrequired torque to all components which includes Antenna fixtures, Carrier and Fastenings, Gantry, Cable Feeder Rack, Resting and Working Platforms along with Handrails, Wave Guide Rack, wave guide rack support, Ladders etc. including fixing all missing galvanized structural members, bolts, nuts, plain washers and spring washers etc. all complete as per approved drawing in all respect and asper the directions of Engineer- in-chargeThe item also includes providing and applying rust-removing solution or cutting the nuts / bolts where found necessary. NOTE-I: Rate includes cost of all operations involved in tightening of nuts, hoisting and fixing of missing structural members, nuts and bolts, including hire charges of tools, plants and machineries, Binoculars for inspection, insurance premium of labours etc. and nothing extra shall be paid on this account. The contractors has to supply Insurance Coverage Certificate of workers. Cost of Structural Members, Nuts, Bolts, Springs and Plain Washers required at the missing points shall be paid for separately. NOTE-II: Where Tower maintenance workis to be carried out in habitant area,all necessary precautions shall be observed scrupulously so thatthere must not happen any mishap or else the agency shall be responsible solely for any type of damage to human, property, animals and Agriculture/trees in premises of working area. NOTE-III: The Foundation Bolts & Nuts and Nuts & Bolts of Base Joints of Legs shall be enclosed by providing half brick masonry enclosure, filling sand, wrapping the nuts and bolts with polythene sheet and covering the entire enclosure with PCC and finishing the top surface with cement plaster etc. The payment of items of GROUTING shall be made in respective items separately. |
| 7 | 40 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 10.0MT including gantry. |
| 8 | 30 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 7.0MT including gantry. |
| 9 | 9-15 metre four legged angular/tubular light weight/ Heavy weightcommunication towerof Approximate weightupto 3.0MT including gantry. |
| 10 | 15 metre Mastof Approximate weightupto 2.0MT including gantry. |
| 11 | Clearing of tower base and immediate surroundings by removing grass/bushes etc. and leveling the undulations in ground and disposal of the rubbish away from the tower premises as directed by Engineer in charge |
| 12 | Finishing walls with Acrylic Smooth exterior paint of required shade : |
| 13 | Old work (Two or more coat applied @ 1.67 ltr/ 10 sqm) on existing cement paint surface) Important Note: Date of painting done shall be written on the facing foundation with red paint with letters of height not less than 65mm) |
| 14 | Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq. meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground , all complete as per directions of Engineer-In-Charge. |
| 15 | With cement mortar 1:4 (1 cement : 4 fine sand). |
| 16 | Providing and fixing multi-strand high tensile GI stay wire rope of 6mm dia for anchoring and tightening the mast, one end of the stay wire should be connected to the mast at specified height and the other end should be anchored to RCC block with necessary one turn buckle in each rope fasteners, "D" Shackle, clip, nut, bolts etc. complete as directed by the Engineer in charge. |
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