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#86287 - 09/29/03 08:43 AM Non-metallics in air spaces
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Where can I find rules on the use of non-metallic cables & raceways above drop ceilings that are used for air returns?
I thought there were prohibitions, but I can't find anything in the articles on-


2014 / 2011 NEC & Related Books and Study Guides
#86288 - 09/29/03 08:57 AM Re: Non-metallics in air spaces
Ryan_J Offline

Registered: 08/19/03
Posts: 1355
Loc: West Jordan, Utah, USA
I don't a have book in front of me, but I think it is in article 300.22 and also in the IMC in section 605.

I'm sorry if I'm wrong on that. It might be 300.12.

[This message has been edited by Ryan_J (edited 09-29-2003).]
Ryan Jackson,
Salt Lake City

#86289 - 09/29/03 10:27 AM Re: Non-metallics in air spaces
resqcapt19 Offline

Registered: 11/10/00
Posts: 2209
Loc: IL
See 300.22(C). In general you cannot use nonmetallic raceways, however if this is a Chapter 8 application there are some nonmetallic raceways that are permitted. See 800.51(J) for an example. One brand of this stuff looks just like electrical nonmetallic tubing except that it is orange.

#86290 - 09/29/03 11:06 AM Re: Non-metallics in air spaces
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Ryan, Don,

Thanks for the help!


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