We bought a house a couple of years ago with a covered light fixture box in the ceiling (a blank cover over a wired box and a blank cover over the switch box). I recently modified a plug-in pendant lamp (no ground) to a hard-wired pendant lamp by doing the following:
- Cut the plug off the lamp cord.
- Connect it to the wires in the ceiling box (white to white, black to black).
- Install a new single-pole switch in the switch box.
The new fixture has no ground, so I'm not sure what to do with the ground wire from the power cable. The fixture is a simple lamp-style socket on the end of a long cord. I have a 12-watt (60-watt equivalent) CFL installed.
The circuit itself, as best as I can tell, controls the overhead lights in the kitchen and the adjacent room. This includes a small (20-watt?) round fluorescent fixture, a ceiling fan that we never use (with a 25-watt incandescent bulb installed), and a track light with three 26-watt (100-watt equivalent) CFLs installed.
The first time I flipped the light on, it immediately tripped the breaker. I reset the breaker and tried again with no problem. Tonight during dinner (I did the mod on Tuesday or Wednesday), the breaker tripped after the lights had been on and stable for quite some time.
I didn't flip the switch off, but I reset the breaker. It immediately tripped, so I reset it again, and it seemed fine. It hasn't tripped since. In the 2.5 years we've lived here, I don't remember that breaker ever tripping before, which is what has me concerned.
I'll be in the attic tomorrow to replace a cable splitter, so I'll try to find the cable and visually inspect it for any damage or kinks.
Is there anything else I should be looking for? Any obvious problems or solutions that I don't know of?