Rate Contract Providing Chemical earthing at existing BTS Sites where 4 G BTS is to be installed under Phase IX 2 Project in Dehradun BA Uttarakhand Telecom Circle Dehradun

Amount

Supplying, Installation, Testing ,Commissioning of Maintenance free Chemical earth station as per latest RDSO specifications consisting of :- a) Steel electrode ,High Tensile ,low carbon molecularly bonded with copper on outer surface as Per UL requirement of 3 mtrs long, 17 mm dia with copper bonded thickness of minimum 250 microns and a copper coated low carbon steel strip of 300mmx25mmx6mm with suitable hole shall be exothermically welded to main Earth electrode for taking the connection to main earth bus - 1No. b) Earth Enhance material ,Maintenance free, Environmental friendly, Mineral compounds, Semi soluble, non corrosive, conductivity improving material confirming to IS 62561 Part 7 of RDSO approved) =30-35 Kg c) Poly plastic, Heavy Duty, weather-proof, environmental free earth pit chamber with cover size about top dia 250mm bottom 330mm and height 260mm. Heavy duty of 7 TON load capacity, the base unit should have knockouts for interconnection of strips. Note -a)Earth resistance at Main Earth bus bar between 0.5 to 1 Ohm is to be achieved b) Measurement of earth resistance will be done after 24 hour as per RDSO specification .c) Chemical Earthing work should be strictly carried out as per RDSO Specification attached),d )The above work is all inclusive i/c transportation (in plain area), T&P and testing at site complete as required , e) The Sites of earthing will be located in Plane as well as hill area of Uttarakhand state so Quote the Rate accordingly .

In Normal Soil

In hard rock Soil

S/F of 25mmx5 mm thick GI strip for inter linked of earth electrodes and Main electrode to main earth bus on surface /recess or buried below 500mm below ground level i/c connection with SS nut bolt complete etc as reqd

Providing and fixing 450 mmx50mm x6mm GI strip as Main earth bus bar on wall surface on suitable insulators having suitable no holes for connections complete etc as required .Note- This item is to be executed on need basis.

Testing of existing earthing system at the BTS or Exchange site including excavation of soft /hard surface for tracing the earth pits including cleaning of bushes /Jungle (if any) making arrangement for labour & arranging the earth testing meter, tools necessary skilled technician to complete the job and preparing a testing report for tested results as per format attached & the instruction of the Engineer-in-Charge complete i/c transportation and making good the damages complete etc as required (Note;- This item will be paid if only earth measurement is done and no work of earthing is executed at site.)

Excavation of CC Floor for laying the new earthing system including making arrangement for labour & tools required for the job, repairing and making good the damages complete etc as required at site. (Note- This item is to be executed on need basis.)

Extra for transportation for Man & material & T&P at hill BTS Sites i/c arrangement for boarding and lodging for technical team etc as reqd (Note- This item is to be executed on need basis.)

Manual to and fro head loading of Earthing material and T&P as chemical bag, GI strip, plate etc from road side to hills top BTS site as site requirement .(Note- This item is to be executed on need basis.)

PRAGATI ELECTROCOM

M/S SANJAY ELECTRICAL COMPANY