hey guys great site,I might stick around.
but I have an urgent question for now.
I have a 208v, 3 phase, service lateral
(pad mount xformer secondary) feeding a 1600 Main breaker switch board.
In the past the utility company has run the secondarys, now they are requiring the customer to provide them.
The local utility had always undersized them IMO. Now that we must provide them, am I right in assuming that we must size these greater than the service main, in this case 4 sets of 500 MCM cu. ?
The project engineer tells me to run 4 sets of 350 MCM, however it is my opinion that this does not meet the NEC and 500 MCM conductors are required.
I hope I was clear with my question. and thanks in advance..
