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Old 01-11-2013, 05:57 AM   #1
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ceiling box help pls.


Hi:

I have four 14/2 cables going into a 1 1/2" deep light box. How many wires can you stuff into one extremely tiny box? I can't get four connected and in the box. Are there alternatives? I can't use a separate junction box. I want to bury everything in the ceiling.


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Old 01-11-2013, 06:14 AM   #2
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You must leave your box accessable you can't just bury everything in the ceiling. They do make deeper boxes than 1 1/2, try an electrical supply store.

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Old 01-11-2013, 07:47 AM   #3
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A 4" x 1 1/2 octagon box is rated for 7 #14 conductors minus clamps, hickys and such. Can you switch the box and install a 4" x 2 1/8" box which is rated for 10 #14 conductors?
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Old 01-11-2013, 07:53 AM   #4
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I don't even think that box would be big enough. They count wire nuts as box fill in Canada.
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Old 01-11-2013, 02:23 PM   #5
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Quote:
Originally Posted by daveb1 View Post
You must leave your box accessable you can't just bury everything in the ceiling. They do make deeper boxes than 1 1/2, try an electrical supply store.
Thanks Dave:

Yup, that's why I'm trying to get all of the wiring in the box so as not to bury a junction box in the ceiling.
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Old 01-11-2013, 02:25 PM   #6
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Quote:
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A 4" x 1 1/2 octagon box is rated for 7 #14 conductors minus clamps, hickys and such. Can you switch the box and install a 4" x 2 1/8" box which is rated for 10 #14 conductors?
Right on! Now, I'm having enough trouble getting 4x NMD90 in a 4" octagon 1 1/2" deep. How in tar nation does one get 7 in there????? Do they sell electrician's shoe horns :-)
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Old 01-11-2013, 02:28 PM   #7
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I don't even think that box would be big enough. They count wire nuts as box fill in Canada.
Hi Jim:

Thanks. I can certainly understand why wire nuts (Marettes, here) are counted as well. I can't even bend the wires in to get them into the box. I'm going to have to experiment with larges boxes.
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Old 01-11-2013, 05:00 PM   #8
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Quote:
Originally Posted by Allthunbs View Post
Right on! Now, I'm having enough trouble getting 4x NMD90 in a 4" octagon 1 1/2" deep. How in tar nation does one get 7 in there????? Do they sell electrician's shoe horns :-)
For this post I am going to assume that NMD is like our NM (romex).

When Electures states 7 #14's he doesn't mean 7 14/2's. Each current carrying conductor counts as one, then all the grounds count as a total of one.

So, in your case, 4 14/2's would actually be 9 #14's in that box.

You are overfilled by one cable.

Again, this is by NEC rules.
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Old 01-11-2013, 10:39 PM   #9
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And in Quebec you are NOT permitted to do your own electrical work. You must hire an electrician.

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