1 |
Earthing |
For earthing of the tower, 50x3mm GI strips should be bounded to the all four tower legs
at the termination of the gusset plate of first joint and connected to ring earth at the other
end.Two plate earthing and ring earthing materials shall be supplied by tower suppliers |
2 |
Welding |
Welding shall be done as per IS: 9595 (1996) and test for quality of welding will be carried
as prescribed in the test schedule/test procedure. Welding connections of Base Plate shall
be as per IS 800:1984 |
3 |
Painting |
The tower shall be coloured with alternate bands of orange & white or red and white
paint as per ICAO recommendations. The Ready mixed Paint, Primer, Enamel etc., used
for tower painting, shall be as per the following IS codes:
|
4 |
Design |
All the major components of material for tower shall be procured from the IS approved
sources and certificate to this affect shall be given by manufacturer. |
5 |
Safety |
All responsibility for tower erection shall lie with the supplier/erection agency which
shall follow safety norms as per IS 7205(1974)" |