Installing new service for large pole building. 400 amp. Feeding 200 amp sub and other small outbuildings. Can I run a #4 around building sized to largest feeder or do I have to use a 1/0 Building is 100 x 65.
I want to run the grid to tie building back to service. Not as a grounding electrode.
I want to run the grid to tie building back to service. Not as a grounding electrode.