Posted by gfretwell:
That is just a lamp holder screwed into the fan J box cover and they drilled 2 holes in the cover, no bushings, for the fixture wires. They used a regular 1/4-20 screw, not the 1/8 NPT threaded tube so they could not route the wires up that way.
One of their house warming gifts was the listed (...)
Posted by JBD:
I see nothing in the NEC that would prevent you from having two disconnects, in series, for a fire pump installation. I have designed, and had installed, new disconnects with short circuit protection upstream from existing fire pump services. They have not been questioned by the AHJ.