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Posted by Just Joshin on March 23, 2007, 6:26 pm
>I read in a NEC summary that a 6 cubic inch pancake box is "only good
>for the end of a 14/2 run", i.e., no outgoing 14/2 allowed. But I
>also read (somewhere, not specifically in the NEC) that the pancake
>box can be used as a junction box, as long as the fixture atached is
>domed and hence provides the additional cubic inchdes needed for the
>junction.
>
>Is the second statement true? If so, do inspectors go along with
>it?
>
>If I have 6 outdoor fixtures to install along the front of a building;
>can I just daisy chain a 14/2 to each location, and leave (2) 1 foot
>ends hanging out of a hole at each location, claiming a pancake box +
>domed fixture will be installed at each location (when the building
>exterior is finished)? I've seen plenty of new construction where the
>wiring for exterior lights is jsut left hanging, and I assume they get
>their rough wiring bought off prior to completing the exterior trim/
>fixtures.
>
>Mike
imho:
You need 6 cubic inches for a dead ended 14/2. So the pancake boxe
provides the min required. For a junction box to splice two 14/2's
you need 10 cubic inches. I think your observation about the size of
a pancake box makes it clear what the NEC would say about using it as
a junction box.
FYI, check with your AHJ. They have the ultimate say.
tom @ www.Donate-Car-2-Charity.com
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