I am the original poster, but I forgot to send my username in my email. I'm not an electrician, but I find numerous safety hazards and violations in this installation:
1. No wire nuts used to connect wires together (violation)
2. Ground wires on NM cable have been cut off and are not bonded to the conduit system (violation).
3. Overfilled 21 cu. in. metal junction box. (Violation) This box has a total of ten 12 ga. current-carrying conductors. For box-fill requirements, the code requries 2.25 cu. in per 12 ga. conductor. Add one extra conductor for the illegally cut-off ground wires on the NM cable, and the total is 11 conductors (2.25 x 11 = 24.75 Cu. In)
4. Ungrounded NM cable feeds 3 prong grounding-type ceiling outlets (violation), controlled by wall switch to power fluorescent lights in store room.
5. Use of white wire for hot conductor, without clear markings to differentiate from neutral conductor (violation).
6. Lack of grounding conductor, relying solely on conduit.
7. No cover on junction box, and wires protruding out of the box (violation).
8. Unsecured NM cable dangling through mid-air (almost certainly a code violation). NM cable use in commercial installation may be a violation as well.
[This message has been edited by newsgraphics (edited 11-09-2005).]
