Gripple wire style secondary support for recessed modular luminaires within ceiling grid systems; is this a requirement or just best practice? (Excluding instances where the manufacturer's installation instructions stipulate it.)
559.5.2. Simply requires adequate means to support the luminaire and that the ceiling is compatible with the weight imposed.
I have a particular interest in fire safety and many of the incident photos I have gathered over the years show buckled metal grid suspended ceilings with luminaires dangling at the end of wires liked some latter day mass hanging.
It would seem reasonable that a luminaire of any significant mass should not rely solely on one of those soft lay-in tiles without additional support.
559.5.2. Simply requires adequate means to support the luminaire and that the ceiling is compatible with the weight imposed.
I have a particular interest in fire safety and many of the incident photos I have gathered over the years show buckled metal grid suspended ceilings with luminaires dangling at the end of wires liked some latter day mass hanging.
It would seem reasonable that a luminaire of any significant mass should not rely solely on one of those soft lay-in tiles without additional support.
