Load Calculation - Wire Size

[texassparky]

On the attached load calculation, does the feeder ampacity have to be large enough to carry the Calc kva, or the balanced 3 ph amps ?

which value do I use :-?

 

[Smart $]

On the attached load calculation, does the feeder ampacity have to be large enough to carry the Calc kva, or the balanced 3 ph amps ?

which value do I use :-?

Same difference.

2650kVA/480V/1.732=3190A (rounded to 3 sig' fig's)

 

[texassparky]

Ahhh...kva to amps thanks !