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Joined: Dec 2004
Posts: 3
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BillK Offline OP
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Has anybody heard anything about new codes reguarding 3" hubs to a residential load center? Anybody have details???
Have heard it might be for panels 400A and up.


Bill K
Joined: Feb 2003
Posts: 169
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Member
Hi Bill,

I have not heard anything.
310.15(B)(6) allows 400 KCMIL THWN copper for a 400 amp dwelling service.
You could go traditional and use 500 KCMIL THWN, both fit in 2 1/2 per Annex C - Table C1 EMT and C4 IMC. In table C8 for RMC, 500 KCMIL would have to be in 3 inch.

Joined: Apr 2002
Posts: 7,274
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Bill:
Welcome to the forums.....
Could you be refering to a utility (POCO) requirement???

Here in NJ (PSE&G) a 'mast' service requires a 2 1/2" RGC minimum.

John


John

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