Extension rings

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The following is from the UL Guide information for Metallic Outlet Boxes (QCIT).

Quote:
EXTENSION RINGS Extension rings are suitable for extending properly secured flush- or surface-mounted boxes. One or more extensions may be used. An extension ring is intended to increase the box depth, volume, or both.
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Barring a 300.14 issue, this is a permitted installation in both the NEC and UL documents.

I believe the OP's question is answered by the exception to 314.22, which easily confuses the "causal reader" of the NEC.
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Still looking for a confirmation on the wording being "perfected". Believing that words have very definitive words in a legal sense, want clarification in the eyes of a formal interpetation - anyone here from code panel # 9 (covers 314) ? Yes, I'm aware of the disclaimer on the inside of the NEC cover. Anyone from the code panels, how much research is put forth to grammatical structure, spelling and "readability"? I know on this particular issue, it won't probably matter, however, if a legal decision were to be decided on verbage of the NEC, it should pass muster in a court of law. Anyone have anything definitive on this?
 
Rockyd said:
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Still looking for a confirmation on the wording being "perfected". Believing that words have very definitive words in a legal sense, want clarification in the eyes of a formal interpetation - anyone here from code panel # 9 (covers 314) ? Yes, I'm aware of the disclaimer on the inside of the NEC cover. Anyone from the code panels, how much research is put forth to grammatical structure, spelling and "readability"? I know on this particular issue, it won't probably matter, however, if a legal decision were to be decided on verbage of the NEC, it should pass muster in a court of law. Anyone have anything definitive on this?
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I am not too sure if I understand your post, but formal interpretations will not be had outside of the NFPA.
You will need to form your question so a yes or no answer can be formulated
 
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