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J.A. Michel J.A. Michel is offline
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Default Subpanel Grounding Question


wrote in message
...
On Sat, 26 May 2007 00:18:17 -0500, "J.A. Michel"
wrote:

I dunno. When I ran a subpanel in my attached garage, I ran it as a
full
100A sub, with #4 AWG,

It couldn't have been "full 100a" with 4 ga wire, you really need 2.


The inspector didn't have a problem with it.



He missed a violation, it happens. Perhaps he just decided you will
never use the 85a the #4 is good for but it still is not really legal.
A lot of people mis-apply 310.15(B)(6). It is onlky for the main
feeder or service conductors to the whole dwelling. That assumes the
load diversity you have in a home.,


#4cu THHN 90C is 95A not 85