Sag & Tension Calculation
Sag & Tension Calculation
(OP)
Hi;
As you know for calculation of sag & Tension, wire between spans should follow the sagittal curve. but I want to calculate the sag & tension wire between termnations' equipment in the power substation. In some spans the shape of wire is like s and it means that wire does not follow the sagittal curve. Now I want to know that how can I calculate the sag tension of these spans.
Thanks.
As you know for calculation of sag & Tension, wire between spans should follow the sagittal curve. but I want to calculate the sag & tension wire between termnations' equipment in the power substation. In some spans the shape of wire is like s and it means that wire does not follow the sagittal curve. Now I want to know that how can I calculate the sag tension of these spans.
Thanks.






RE: Sag & Tension Calculation
If the conductor in the substation is shaped like an "S", then there is not enough tension to pull out the curve from when the conductor was on the reel. There's no way to calculate this.
RE: Sag & Tension Calculation
RE: Sag & Tension Calculation
You're right. I mean Catenary curve. you have replied that
there is no way to calculate those spans which are like "S". you don't know any solution for it ?
So how can I figure out that how much force is on the equipments' termination.?
Thank alot.
RE: Sag & Tension Calculation
RE: Sag & Tension Calculation
Chapter 4 of the ABB switchgear manual may be of assistance.
Regards
Marmite
RE: Sag & Tension Calculation
http:/
Page 107/108.
Regards
Marmite
RE: Sag & Tension Calculation
http://www.lasertech.com
It is represented to do so much like a total station would do.
RE: Sag & Tension Calculation
I Saw your link and check that book which you had suggested
me. But it was only some chater of that book . Do you have electronic file of that book ?
I thank you very much.
RE: Sag & Tension Calculation
RE: Sag & Tension Calculation
This won't help to predict the horizontal force at cold temperatures or with ice loading.