12-e2/EEC(K)/BSNL/2020-21

Amount

Painting of Ground Based self-supporting tower with following activities and as per directions of Engineer-in-charge. The rate is inclusive of painting of all tower materials including platform, antenna mount, ladder, vertical and horizontal tray, post etc. and will have to get insurance premium of all the workers employed by him on painting. a) Scrapping of old painted surface b) one coat of Etch Primer and one coat of Zinc Chromate Yellow primer c) two coats of synthetic enamel paint of approved brand and manufacture as per international Civil aviation rules (International white & orange) 1) 40 m NBLW Tower

2) 60 m 3-legged TTH Tower

Supplying deficient tower materials at site. The material required for tower, ladder, wave guide rack, antenna fixtures, pipe stand for lightening arrester, nuts, bolts, etc. as required shall be provided as per drawings/actual requirement at site, in required lengths including drilling holes for bolts etc. in exact conformity with the approved drawings and as per the direction of Engineer-in-charge. NOTES: 1. All tower materials shall be hot dipped galvanized. The tower materials, fabrication and galvanizing shall be as per relevant BIS and SERC specifications. 2. Measurements: Weight of individual member shall be worked out on the basis of linear measurements and standard coefficients. Nuts, bolts and washers shall be measured for payment.

Providing and fixing lead strips of size 50X50X1 mm at joints of GI earthing strips as per direction of Engineer In Charge.

Providing and fixing copper Lightening arrester of 1500mm length, 25mm dia, hollow tube and of wall thickness not less than 1.60 mm including tinning the bottom portion of the spike for a length of not less than 150mm and connecting to the G.I. strip of size 50 x 3mm of earthing by means of clamps and 2nos 10mm dia brass bolts and nuts all complete as directed by the Engineer-in-charge. The lightening spike shall be fixed to the tower with Teflon sheetto avoid direct contact with the tower.

Providing and fixing LED aviation obstruction lamp (with 55 LED Bulbs) of Saraj, Binoy, Aviads, Litten or equivalent make with light dependent resistance sensor (day and night automatic timer) with necessary MS brackets and MCB switches, clamps etc., complete, all as per directions of Engineer-in-charge.

Supplying & laying of 2x1.5 Sqmm armoured copper conductor Cable "Armoured ISI PVC Insulated & sheathed cable" of approved quality and brand including copper terminations/ Lugs etc. all complete as per directions of Engineer- in-charge. Sheath earthing for the armoured cable shall be done at minimum of two points on the tower as per the standards specified.

Supplying fixing hot deep galvanised GI flats, plates, nut bolts for tower earthing complete , as per direction of Engineer in Charge.

Supplying fitter/Blacksmith for dismantling rusted GI Nut bolts, by cutting with cutting tools and fixing new hot deep galvanised GI Nut bolts. (Supplying of hot deep galvanised nut bolts will be paid seperately) (Approximately 20 % Nut Bolts are to be dismantled by cutting) 1) 40 m NBLW Tower

2) 60 m 3-legged TTH Tower

Checking and Tightening of nuts to required torque of four legged 40 meter high Ground Based tower weighing upto 10.00 MT of all components which include antenna fixtures, carrier and fastenings, gantry, cable feeder rack, resting and working platforms with hand rails, wave guide rack, wave guide rack support, ladders etc., including fixing all missing galvanized bolts, nuts and spring washers, etc all complete as per approved drawing in all respect as per the directions of the Engineer-in-charge. (Note: Rate includes cost of all operations involved in tightening of nuts, hoisting and fixing missing nuts and bolts, including hire charges of tools, plants and machineries, insurance premium of labourers, etc and nothing extra will be paid. The contractor has to supply insurance coverage certificate of workers. (Cost of missing nuts, bolts, spring and plain washers etc supplied shall be paid for Seperately. ) 1) 40 m NBLW Tower

2) 60 m 3-legged TTH Tower

MS R P CONSTRUCTIONS