How to calculate the sag of OHL ?

[ciy]

Dear All,
There are three phases power wire between two gantry in one AIS.
For the safety reason, I would like to figure out what is the adequate sag is needed.
Data as below,
OHL – All Aluminium Conductor (A.A.C) 795MCM
Span – 30M
Max. Horizontal tension = 1000 kg
Max. Wind speed – 40m/sec
Please tell me how to calculate the sag and which standard I have to follow.
Thanks!

 

[msquared48]

If you search for "cable tension formulas" in the engineering tips forum, I believe you will find a thread gto answer your question.

Mike McCann
MMC Engineering

 

[Marmite]

See Chapter 4, Section 4.3.1 of the ABB Switchgear Manual attached. The manual is available free online and is a very useful reference text.
Regards
Marmite

 

[msquared48]

Or this thread...

thread194-233220

Mike McCann
MMC Engineering

 

[ciy]

Thanks for all your assistance!