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Req'd to replace small outlet boxes when upgrading wiring in an olderhome?

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Req'd to replace small outlet boxes when upgrading wiring in an olderhome? Himanshu 08-07-2005
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Posted by on August 7, 2005, 2:11 am


On Sun, 07 Aug 2005 04:39:33 GMT, Himanshu

>I'm upgrading wiring in an older home which originally had ungrounded
>two-wire fabric-sheathed cable. I replaced it with 12/2 with grounding
>wire in a few circuits.
>
>The existing handy boxes (is that the right word for outlet boxes?) are
>not as big as the ones currently being sold.
>
>For a middle of the run receptacle, I'm looking at 4 wires + ground +
>grounding wire nut (the one with the pass through if you've seen them)
>and clamps in one of those boxes which is 12 cu in or less, and I can
>barely close up the outlet cover.
>
>I'm wondering, is it required to change the outlet boxes to the bigger
>14 cu in (or bigger) boxes when I upgrade the wiring? That would be
>much more work than I had originally anticipated.
>
>Thanks.


Short answer is yes. For 12ga, 5 wires and a receptacle you need a 16
cu/in box.


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Posted by Himanshu on August 9, 2005, 10:46 pm


Himanshu wrote:
> I'm upgrading wiring in an older home which originally had ungrounded
> two-wire fabric-sheathed cable. I replaced it with 12/2 with grounding
> wire in a few circuits.
<snip>
> I'm wondering, is it required to change the outlet boxes to the bigger
> 14 cu in (or bigger) boxes when I upgrade the wiring? That would be
> much more work than I had originally anticipated.

Thank you all for your suggestions.

The local inspector said that for the end-of-the-run, I could keep the
older box, but for middle-of-the-run, I would have to install a bigger
box during the upgrade.

--
Himanshu


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