theone wrote:
May I know the name of the article your read? I was also told by consultants that the rating of bus horizontal/vertical has a huge affect on fault current. I am looking for to prove this.
I think the article that Mike is referring to is "Effect of Electrode Orientation
in Arc Flash Testing" availabe for download from Ferraz Shawmut, here:
http://us.ferrazshawmut.com/arcflash/getting_help/downloads/05IAS_11P7_web.pdf
I don't recall seeing anything about bus ratings in the paper, it deals with the arc and the effects of bus orientation at the point of the arc. I would be curious as to anything you find out about bus ratings on fault current. I don't understand how it would affect it, other then larger bus having a lower impedence. I wouldn't think that bus bracing would have any effect. But I didn't stay at a Holiday Inn Express last night, so I could be wrong.