Conductor sag and tension
Conductor sag and tension
(OP)
Hi!
I dont know the procedure in calculating conductor sag and tension of a new transmission line, could anybody help.
Is there any criteria on selecting what sag(on the sag tension table) will be used in determining the height of the transmission tower?
I dont know the procedure in calculating conductor sag and tension of a new transmission line, could anybody help.
Is there any criteria on selecting what sag(on the sag tension table) will be used in determining the height of the transmission tower?





RE: Conductor sag and tension
Try this link:-
http://www.spaceagecontrol.com/calccabl.htm
desertfox
RE: Conductor sag and tension
I want to calculate it by hand (using spreadsheet).
RE: Conductor sag and tension
THE TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY
BY H.COTTON & H.BARBER
ISBN 0 340 147717
Its to complicated to go into here as you need also to consider ice on the line in addition to wind and also in hot weather how much more sag and tension will occur from the initial installation tension.
desertfox
RE: Conductor sag and tension
RE: Conductor sag and tension
RE: Conductor sag and tension
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I have been called "A storehouse of worthless information" many times.
RE: Conductor sag and tension
1.You calculate the max.sag at basic span to get the height of the bottom crossarm height, you need to consider the electrical clearance to the ground as well.
2.You decide the vertical phase spacing and earthwire to uppermost phase distance which you may follow the relevant code and local practice.
RE: Conductor sag and tension