jazer
Senior Member
- Location
- Gibsonia, Pa
It's been a little while since I sized a sub-feeder. I have a single phase commercial application that requires metal clad installation. I see that a common conductor size for residential sub-feed cable is #2 aluminum, but according to 310.15 (b)(16), that is only good for 75 amps on the 60 degree column. It looks like I would need a 1/0 to handle a 100 amp sub-feed? I guess I have two questions, how is #2 aluminum ok in a resi sub-feed application and is 1/0 truly what I need?
Thanks
Thanks