slipknotbmg
Member
Can I install a 4' section of cable tray, concealed, in a drywall partition? If so does it have to be solid tray w/ a cover, and being as it is covered for less than 6' do I have to derate my type tc cable?
Concealed cable tray
- Thread starter slipknotbmg
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bphgravity
Senior Member
- Location
- Florida
Re: Concealed cable tray
I do not believe you are permitted per Section 392.6(G) of the NEC 2002.
I do not believe you are permitted per Section 392.6(G) of the NEC 2002.
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
Re: Concealed cable tray
(G) Through Partitions and Walls. Cable trays shall be permitted to extend transversely through partitions and walls or vertically through platforms and floors in wet or dry locations where the installations, complete with installed cables, are made in accordance with the requirements of 300.21.
(H) Exposed and Accessible. Cable trays shall be exposed and accessible except as permitted by 392.6(G).
[ November 17, 2004, 08:35 PM: Message edited by: petersonra ]
Seems pretty clear. You can go through a wall or floor but not stay within it.
(G) Through Partitions and Walls. Cable trays shall be permitted to extend transversely through partitions and walls or vertically through platforms and floors in wet or dry locations where the installations, complete with installed cables, are made in accordance with the requirements of 300.21.
(H) Exposed and Accessible. Cable trays shall be exposed and accessible except as permitted by 392.6(G).
[ November 17, 2004, 08:35 PM: Message edited by: petersonra ]
slipknotbmg
Member
Re: Concealed cable tray
Thanks guys, that was what I was geting out of the code too, just wasn't sure if there were any exeptions, lol.
Thanks guys, that was what I was geting out of the code too, just wasn't sure if there were any exeptions, lol.
Re: Concealed cable tray
Can I add another question: Can I cover the front side of a vertical section of ladder type cable tray with a wall? The back side (with the rungs) would still be open. In no, then can I turn the cable tray around and cover the back side?
STeve
Can I add another question: Can I cover the front side of a vertical section of ladder type cable tray with a wall? The back side (with the rungs) would still be open. In no, then can I turn the cable tray around and cover the back side?
STeve
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
Re: Concealed cable tray
OTOH, one could argue its accessable with the front side covered, but just not as easy to get at.
My guess - as long as you can access the cables you are probably OK. I would say putting a wall over the front side is unacceptable since you could not remove cables (at least easily). Putting it on the back side is probably Ok since you can still get at and remove (or add) cables without added difficulty.
OTOH, one could argue its accessable with the front side covered, but just not as easy to get at.
slipknotbmg
Member
Re: Concealed cable tray
Ok, here's another one. Can I install type TC cable in a drywall partition without a raceway?
My biggest concern here is derating, so I'm trying to avoid conduit sleeves between the tray and recessed panel.
Ok, here's another one. Can I install type TC cable in a drywall partition without a raceway?
My biggest concern here is derating, so I'm trying to avoid conduit sleeves between the tray and recessed panel.
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