I have a #3 THW Cu, 3wire 120/240v single phase feeder 219' in length. If I wanted to find the Ampacity per phase I should use this formula right?
I= VD*CM/D*K
CM- cmil of 52,620
D- 219'
K- (approx) 25.8
VD-(Voltage Drop) should I use 120v or 240v to get my 3% from 210.19(A)FPN:
why use one over the other? If this is a stupid question I'm sorry, I just don't understand
I= VD*CM/D*K
CM- cmil of 52,620
D- 219'
K- (approx) 25.8
VD-(Voltage Drop) should I use 120v or 240v to get my 3% from 210.19(A)FPN:
why use one over the other? If this is a stupid question I'm sorry, I just don't understand