M MBLES Senior Member Jul 27, 2018 #1 I have a transformer that will be feed from a breaker 200' away for primary. Does the secondary conductors OCP need to follow 10' tap rule on 240.21 C ? Or is that rule only if the transformer is feeder tapped?
I have a transformer that will be feed from a breaker 200' away for primary. Does the secondary conductors OCP need to follow 10' tap rule on 240.21 C ? Or is that rule only if the transformer is feeder tapped?
