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#113022 01/30/02 07:58 PM
Joined: Oct 2000
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This remodel box is a plastic type, cut into a kitchen cabinet, fed with a #14-3 NM-B cable which enters directly to the left of the box, as seen between the cabinet and wall. Notice 2nd open ko behind ko which has cable in it. No clamp is used.


Electrician (20 years +) is trying to use Section 370-17 (c) exception (1999 NEC) for code compliance. Any comments?


Rick Miell

#113023 01/30/02 08:29 PM
Joined: Dec 2000
Posts: 4,294
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The exception applies to boxes mounted in a wall or ceiling. This isn't either. It's a cabinet.

#113024 01/31/02 07:54 AM
Joined: Mar 2001
Posts: 2,056
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I always thought this exception addressed plastic nail-on boxes which need to be stapled within 8 ".
BTW, does punching a hole in the side of an old-work box violate 110-2(b)? (99 NEC)

#113025 02/10/02 07:23 PM
Joined: Dec 2001
Posts: 270
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Just to clear things up, the exception to 370-17(c) still requires that NM cable enters the box through a "cable knockout". From what I can see in the photo, the cable is entering through a conduit knockout.
Redsy's comment was correct..that the exception is more pertinent to the notion that you can staple the unclamped wire within 8", measured along the wire, and an exception to the usual 12" allowed in Article 336.

#113026 03/14/02 05:06 AM
Joined: Mar 2002
Posts: 4
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i don't think that is a knockout at all...just a hole drilled in the side. you can see where they failed on the first attemt.

#113027 03/14/02 11:21 PM
Joined: Dec 2000
Posts: 218
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I don't recall ever seeing any of the plastic boxes that had a conduit KO or hole in the side of the box. Could this be a possible listing violation?

#113028 03/15/02 07:54 PM
Joined: Oct 2001
Posts: 172
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what seymo said
watthead


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