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support for trough fixtues in suspended ceiling systems

C

codeworks

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Jun 12, 2011
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South Texas
I need a good memory jogger. Where I was working as an electrician we always had to install jack chain or wire from opposing corners of lighting fixtures (2x2's or 2x4's)when laid in a syspended ceiling system. Now i'm working as an inspector , i know they have to be clipped or other wise attached to the grid work, is there an NEC requirement for the fixtures being supported by the building structure. I don't consider suspended ceiling "structure". thanks in advance
 
Cisca 3-4 Standard if you are in a seismic zone D,E,F......... IBC section 1613 which references ASCE-7 which refences Cisca 3-4 for suspended ceilings in seismic design cats DEF.

otherwise NEC- 08ed. 410.36 (B) states they must be fastened in an approved manner - (paraphased - bolts, clips, screws, rivets) to the grid unless independly supported in which case 410.36(B) does not apply.
 
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NEC2005, 410.16 means of support © for those of us that have not move forward with the latest code!

pc1
 
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