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Code check - running wire in ceiling

Posted by live4ever (My Page) on
Wed, Mar 7, 12 at 15:23

We are installing some recessed lighting in our kitchen ceiling. The ceiling is completely open. The ceiling joists are 2x4s (full 4" tall) and the space above is dead space/attic.

My understanding of electrical code is that when wiring perpendicular to joists the wire must pass through holes in the joists, not above the joists. It's also my understanding that wires/holes must be 1.25" from the edge of studs or 2" from the edge of joists.

This doesn't seem possible in this case, unless I am missing some exception for attic spaces? Or should I just go with boring a hole at the center of the joist and using nail plates? Thanks for your help.


Follow-Up Postings:

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RE: Code check - running wire in ceiling

What is above the joists? How is the space above the joists used?


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RE: Code check - running wire in ceiling

It's not used at all. It is dead space - about 2 feet under the roof rafters. No insulation.


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RE: Code check - running wire in ceiling

Is this already a finished space?
You don't have to worry about bored holes or other securing when pulling through existing ceilings.
What is the kind of ceiling? If it is a suspended ceiling it does need to be held up off it.


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RE: Code check - running wire in ceiling

If the attic space is more than 6 feet from an access point or not accessible, installing the cable on top of the joists is permissible.


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