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Article 645 #77891
07/19/01 09:43 AM
07/19/01 09:43 AM
Joe Tedesco  Offline OP
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Why is it OK to have liquidtight flex and nonmetallic conduit (both having a PVC jacket ) under the raised floor, but not PVC with
a ground conductor in it?

Joe Lusso, Electrical Plant Engineer
Facilities Project Management
303.673.5248 phone
303.673.4551 fax
email: LussoJA@louisville.stortek.com


Joe Tedesco, NEC Consultant
2017 / 2014 NEC & Related Books and Study Guides
Re: Article 645 #77892
07/19/01 10:58 AM
07/19/01 10:58 AM
R
Redsy  Offline
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
Doesn't 645-5 (d) (2) permit rigid non-metallic (PVC) conduit?

Re: Article 645 #77893
07/19/01 12:13 PM
07/19/01 12:13 PM
Joe Tedesco  Offline OP
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Redsy:

Yes, and the question is really not very clear. I have invited the person who asked this question to come aboard here on theis BB and look for the help he needs. I always bring these types of question here so we can all put our thoughts into the discussion.


Joe Tedesco, NEC Consultant
Re: Article 645 #77894
08/05/01 11:33 AM
08/05/01 11:33 AM
T
tdhorne  Offline
Member
Joined: Mar 2001
Posts: 345
Maryland, USA
Quote
Originally posted by Joe Tedesco:
Why is it OK to have liquidtight flex and nonmetallic conduit (both having a PVC jacket ) under the raised floor, but not PVC with
a ground conductor in it?


Most of the limitations on the use of PVC conduit inside buildings are the result of concerns about the fuel and smoke contributed under fire conditions rather than its performance as a raceway.
--
Tom


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison

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