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"All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
In many cases we base the ampacity on 1000 amps per square inch. Thats very safe. Conderations are silver or tin plated copper, round edge, square edge but copper is copper. I'm somewhat confused as to your panel current and my suggestion is, if you have a main c/b, size your cable accordingly. I don't think you're designing your own panelboard or maybe you are. The guys referred you to Storm Copper which is one of the big guys in copper bus bar mfg. They know their buscuits and as a switchgear designer, I use the IEEE-45, table A27 but as far as covering your ass, use 1000 amp/sq in.
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Thank you for your help - By far the best info site!
Busbar sizing is CR4's third-most-popular topic after power factor correction and cable sizing!
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busbar selection chart
Re: busbar selection chart
