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Metallic Box Extensions #33153 01/13/04 06:58 PM
Joined: Jan 2004
Posts: 1
U
Unforgiven Offline OP
Junior Member
I had someone tell me that using more than one box extension is a code violation. This came from what I regard as a reliable source. I've looked and don't see that it's prohibited in NEC. In fact, the UL White Book (QCIT) listing indicates that one or more box extensions may be used. Can anyone point out what might be a code concern on using more than one box extension?


Unforgiven
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Re: Metallic Box Extensions #33154 01/13/04 08:35 PM
Joined: Aug 2003
Posts: 1,374
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Ryan_J Offline
Moderator
It is a permitted practice.


Ryan Jackson,
Salt Lake City
Re: Metallic Box Extensions #33155 01/13/04 08:43 PM
Joined: Apr 2002
Posts: 7,218
HotLine1 Offline
Member
Unforgiven:
Yes, as Ryan pointed out, it's a regular practice. The only code violation that I can envision would be the length of the conductors may be to short when installing multiple extension rings.

What I'm saying is, if the conductors in the original box were 4" extended past the front of the box, and you put two (2) 1-1/2" extensions on, then it could be a violation.

John


John

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