three phase service panel

[ddkeith]

can someone help me out on this? i need to know how how to size a three phase service panel in amps. is it done the same way as a single phase where you take the net caculated load va and multiply by supply voltage? and does it make a difference if theres a high leg or not? thanks in advance.

keith
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[bphgravity]

Re: three phase service panel

For 3?: VA / Voltage / 1.732 = Amperes.

 

[charlie b]

Re: three phase service panel

Originally posted by ddkeith: . . . is it done the same way as a single phase where you take the net caculated load va and multiply by supply voltage?

I believe you meant divide by. It does work essentially the same way. But as Bryan pointed out you also divide by the square root of three (about 1.732).