We have a buildout happening in our state owned building, they are tieing new smokes to our existing system. Instead of installing t bar hangers and boxes, they toggle bolted the bases to the ceiling tiles and insist thats fine and in fact its standard practice. I worked installing fire alarm for a contractor for a few years and never saw such cheezy crap.
The installation instructions for the smoke detectore say to mount the bases to a box. Does it not void the UL listing to toggle bolt them to the ceiling tiles when the installation instructions say to mount it to a box?
NFPA 72 1-5.5.4 Install according to NFPA 70
NFPA 70 760.52( in 2005) or 760.130( in 2008) install in accordance with 110.3(B)
Also NFPA 70 Handbook 760.52(B) says 760.52b requires mechanical protection for splices or termination points. The contractor has just free run plenum rated cable through the ceiling tile and through the base and terminated without and mechanical protection or "strain relief" holding the cables to their base.
Am i wrong that they need t bar hangers and a box with mechanical protection?????
The installation instructions for the smoke detectore say to mount the bases to a box. Does it not void the UL listing to toggle bolt them to the ceiling tiles when the installation instructions say to mount it to a box?
NFPA 72 1-5.5.4 Install according to NFPA 70
NFPA 70 760.52( in 2005) or 760.130( in 2008) install in accordance with 110.3(B)
Also NFPA 70 Handbook 760.52(B) says 760.52b requires mechanical protection for splices or termination points. The contractor has just free run plenum rated cable through the ceiling tile and through the base and terminated without and mechanical protection or "strain relief" holding the cables to their base.
Am i wrong that they need t bar hangers and a box with mechanical protection?????