[AT] grounds

[Mogrits]

> cgogol at twcny.rr.com writes:
>
> The feed  from there to the subpanel in the basement is 4 wire (two
> hot, a neutral  and one connected to the ground network).  Then the added
> feed from  that subpanel (and any subsequent subpanel) is also 4
> wire.  Maybe
>
> this is the reason additional attachments to earth ground at
> subpanels are
> not desired / required.
>
>
>
> Carl,
>
> I believe that is correct. See my reply and quote in the answer
> to  Dudley.
>
> Gary

I'm certain the number of conductors figures into the equation. I ran
four-conductor wire upon his advice, as stated, with no ground rod at the
shop. Back then (6-7yrs ago) the cost of the wire wasn't as big an issue.

I used 4-conductor mobile home service wire. I think the practice is similar
where it deals with a mobile home. After all, the building/MH is separate
from the sevice and the inside panel is merely a distribution panel. They
don't require a separate ground rod for the interior panel in a mobile home,
only one at the service.

Warren
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