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Non-metallics in air spaces #86287 09/29/03 10:43 AM
Joined: Mar 2001
Posts: 2,056
Redsy Offline OP
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-


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Re: Non-metallics in air spaces #86288 09/29/03 10:57 AM
Joined: Aug 2003
Posts: 1,374
Ryan_J Offline
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
Re: Non-metallics in air spaces #86289 09/29/03 12:27 PM
Joined: Nov 2000
Posts: 2,148
resqcapt19 Offline
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.

Re: Non-metallics in air spaces #86290 09/29/03 01:06 PM
Joined: Mar 2001
Posts: 2,056
Redsy Offline OP
Ryan, Don,

Thanks for the help!


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