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Old 07-19-2012, 03:00 AM   #16
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Originally Posted by stickboy1375 View Post
The NEC is very restrictive with wire amperages, where utilities get full range.
I know the utilities don't use the NEC for wire sizing. I went back again and finally saw the last footnote about the NEC table and now I understand why you mentioned it....thanks for clearing that up. I was reading the Southwire info as if it was an NEC table.

For my new service the POCO is supplying 4/0AL to the meter in conduit. 350mcm if I ask for 400 amp.

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Last edited by zappa; 07-19-2012 at 05:35 AM.
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Old 07-19-2012, 03:16 AM   #17
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Originally Posted by andrew79 View Post
if he's only got 4/0 running out to the meter how does he have a 400A service? does he have two separate runs going out?

again the service size has nothing whatsoever to do with the amount of hydro he's using but i'm curious.
I agree, he should have 2 parallel runs if he has a true 400 amp service.

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