Max Sag for 132 kV Line

is there a fixed value?

Yep. That formula might do it.

The line is sagged initially for normal environmental values. Maximum sag occurs when the line temperature is at its maximum. The line expands in length and therefor its sag increases.

Maximum sag is controlled by changes to the initial sagging environment and cannot be found independently.

http://www.ieee-tpc.org/IEEETPCTutorial_Sag-tensionCalcs.pdf

hi,

what all parameters need to be determined for mechanical aspects of overhead transmission line design? At what temperature should stretched and unstretched length be determined?

Regs,

sks

All the applicable information can be found in the relevant IEC standard (an internet search will only get you so far if you don't have a relevant Engineering Degree).

I would give you the standard number but as we design, test and manufacture overhead line fittings ourselves I wouldn't put it past you that you are trying to start up a new business in competition with us, rather than just asking a homework question (which we also don't answer here on CR4).

Stranger things have been asked on CR4.