ECN Forum Forums Code Related Discussion Building Codes for Electricians Suspended ceilings

In addition to pwood's post.
The 2 wires, diagonal corners (in addition to the remaining 2 corners being secured to the grid) are a minimum.
This is one place where the CBC can be amended by a municipality, and many do.
Some jurisdictions require 4 corners to be wired, with 4 screws. Some want at least 2 wires, with all 4 corners secured to the grid (usually accomplished w/ tek screws).

I once had a job spec where the architect/engineer (from out of State) must not have been too sure of him/herself.
The plans showed 4 vertical support wires, and 4-45° splayed wires for each fixture!
Another T-Bar rule here is that the grid must be suspended at all 4 corners of the fixture...S

Bill
Westchester County, NY is considered a seismic 2 area. There is a chart in the Fire and Prevention code of NYS that shows the seismic designation for all areas of NY.

Pierre

Pierre,

Yes! I have heard that NY State experiences seismic events regularly. I assume they are not that noteworthy though or they would make the Headlines more.

I guess I forget sometimes, living on a Sand Bar.


Bill

Which code is amended in White Plains (Westchester) to require independant fixture support?