George
How does the contractor prove to you he has the Additional support other then required by the ceiling supplier??According to the 2005 NFPA handbook (All Luminaries are NOT allowed to be supported OR secured to the support wires OR T bars of a fire rated ceiling assembly Unless the assembly has been tested and listed for that use.page 266 NFPA 2005 Code handbook.
PS (Merry Christmas)
I read it Ernie and when you read all the commentary it is clearly doable albeit not easy. It would be a special installation and the Inspector, Contractor, UL and Engineer would need to work together and that is pretty unlikely to happen. So the operative word is "unless" according to the NEC and also according to the Handbook. See ya later. Merry Christmas Ernie.
