Fixtures/Seismic

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augie47

augie47

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Tennessee
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State Electrical Inspector (Retired)
Can one of you guys who is familiar with the IBC give me a reference as to fixture support in seismic zones.
 
augie47 said:
Can one of you guys who is familiar with the IBC give me a reference as to fixture support in seismic zones.
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Anything in particular that you are searching for?

There are no requirements specific in IBC for fixtures that I am aware of.

There a specification for lighting fixtures for ceiling grids etc CISCA. But IBC chapter 16 does not have anything specific.
 
The building officials in this area require lay-in fixtures to be supported from the actual structure as opposed to the 410 requirement to be fastened to the grid. In doing so, they have always stated it was a building Code requirement.
I have a area not under their jurisdiction and in discussion I was asked what Code actually required structural support.
 
augie47 said:
The building officials in this area require lay-in fixtures to be supported from the actual structure as opposed to the 410 requirement to be fastened to the grid. In doing so, they have always stated it was a building Code requirement.
I have a area not under their jurisdiction and in discussion I was asked what Code actually required structural support.
Click to expand...

It starts here and sends you to the ASTM standards that sends you to CISCA
[h=3]SECTION 808
ACOUSTICAL CEILING SYSTEMS[/h]
808.1 Acoustical ceiling systems. The quality, design, fabrication and erection of metal suspension systems for acoustical tile and lay-in panel ceilings in buildings or structures shall conform with generally accepted engineering practice, the provisions ofthis chapter and other applicable requirements ofthis code.
808.1.1 Materials and installation. Acoustical materials complying with the interior finish requirements of Section 803 shall be installed in accordance with the manufacturer's recommendations and applicable provisions for applying interior finish.
808.1.1.1 Suspended acoustical ceilings. Suspended acoustical ceiling systems shall be installed in accordance with the provisions of ASTM C 635 and ASTM C 636.
808.1.1.2 Fire-resistance-rated construction. Acoustical ceiling systems that are part of fire-resistance-rated construction shall be installed in the same manner used in the assembly tested and shall comply with the provisions of Chapter 7.
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