enireh
Senior Member
- Location
- Canyon Lake,TX
I have a 320 amp service feeding a 200 amp and a 125 amp panel. Double lugs on load side of meter. Ok to feed 200 with 2/0 coppper and the 125 with #2 copper?
If it's residential I would say ok perTable 310.15(B)(7)I have a 320 amp service feeding a 200 amp and a 125 amp panel. Double lugs on load side of meter. Ok to feed 200 with 2/0 coppper and the 125 with #2 copper?
thank you my question is, is it ok to feed the 200 with 3/0 and the 125 with #1 from the meter?200 amp should be 3/0
And 125 Num1
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If it's residential I would say ok perTable 310.15(B)(7)
thank you my question is, is it ok to feed the 200 with 3/0 and the 125 with #1 from the meter?
meter is double lugged on load side
If it's residential I would say ok perTable 310.15(B)(7)
No you can't use that table in this instance as neither set of conductors carries 100% of the load.
If two breakers were on the pole and both supplied the same building that wouldn't be permitted, but a single breaker (or no breaker and just tied to meter lugs making them service conductors) supplying up to six disconnects at the house is ok, and it could be multiple parallel conductors to each of those six disconnects as well.Are these both going to a single residence? Never tried two laterals to a house, but then I am thinking a pole mounted meter remote from the house.
What you said is the general rule, but doesn't apply when using provisions allowed by 310.15(B)(7).lets not forget the next size up rule (240.4(B)) which often in effect allows the dwelling conductor sizes to be used even on conductors that do not carry the entire load of the dwelling unit. In the OP's case, 2/0 at 75 degree falls on a standard size so that case doesnt fly. #2 at 75 degree is 115 so 125 would be the next size up so that works.
lets not forget the next size up rule (240.4(B)) which often in effect allows the dwelling conductor sizes to be used even on conductors that do not carry the entire load of the dwelling unit. In the OP's case, 2/0 at 75 degree falls on a standard size so that case doesnt fly. #2 at 75 degree is 115 so 125 would be the next size up so that works.
(Pretty clear right now, no agitation or manure)If two breakers were on the pole and both supplied the same building that wouldn't be permitted, but a single breaker (or no breaker and just tied to meter lugs making them service conductors) supplying up to six disconnects at the house is ok, and it could be multiple parallel conductors to each of those six disconnects as well.
Clear as mud isn't it?
ADD:
Forgot who I was talking to, clear as manure slurry isn't it?