I'm installing a new meter socket and CT enclosure outside a building addition, a 600A fused switch inside, and parallel feeder to existing service equipment. I want to use 400 kcmil AL as permitted in 240.4(B), or do I need to use 500?
I'm installing a new meter socket and CT enclosure outside a building addition, a 600A fused switch inside, and parallel feeder to existing service equipment. I want to use 400 kcmil AL as permitted in 240.4(B), or do I need to use 500?
If I'm paying for a 600 amp service I want 600 amps. Bob gave you the code requirements, the guy paying the bill might not be so happy with 540 amps of capacity.