Calculation of Overhead Line Conductor

http://cr4.globalspec.com/search/sitesearch?do=show&sort=textmatchrank&srch=overhead%20conductor%20sizing&srchobjs=t%2Cc&fs=12&order=asc

You could probably google and find it but I would contact a cable mfg. They will likely have this information. Is this for a transmission line or distribution line?

Thanks all, but this is not for homework, but for a 20 kV distribution line :-)

I have found some reference, but they only calculates the sag and tension based on the selected conductor. I never done this before, but what client wants is calculation to get the minimum breaking load of conductor to select between AAC or AAAC.

The only data I get:

- For transformer 5 MVA and 200 kVA of 20 kV

- distance between poles is 30m

- Height of pole is 15m

- Wind velocity is 60 knot

I do not think you can calculate the breaking load. It is determined by test. I have a number of references that provide this information. Are you saying the spans are only 30 Meters? I would think the spans would be 100 meters. If so you have no concern. Will you experience heavy winds and ice accumulation on the conductor? If you sag the conductor to the MFG specs you won't have any problem. If you are still concerned use ACSR conductor.