There are four main methods of erection of steel Transmission Line Data: T/L shall be submitted for each line. The data shall be submitted at the end of final construction and it shall include the following for each line individually: 1. Power conductor type, size and details of strand 2. Bundle details (i.e. number of conductors per phase) 3. Bundle spacing in inches 4. Typical structure configurations 5. Spacing coordinate X, Y for each phase conductor (X=0, Y=0 shall be center line of structure at ground surface) 6. Sag for phase a, b & c (average, minimum and maximum). 7. Shieldwire type, size and details 8. Spacing coordinate X, Y for each ground wire (for both OPGW & OGW) 9. Sag for each shieldwire (average, minimum and maximum) 10. For each power conductor: AC resistance in /mile, DC resistance in /mile, Reactance in /mile, outside diameter in inches, GMR in inches 11. For each shieldwire: AC resistance in /mile, DC resistance in /mile, Reactance in /mile, outside ...
Earthing pit for coal and salt ratio 3:1 to inprove soil resistance. Depth 1.2mtr Dia 300mm