Electrical Wiring in the Home/wiring problems

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Question
I have three consecutive fluorescent fixtures that are not working. When I tested the wiring at the junction boxes that are connected to them, there is no voltage coming in. I checked the fuse panel for a tripped circuit and they are all on.  What can be the problem?  Also, I followed the conduit from the two junction boxes that service the three fluorescent fixtures to a office which has two additional fluorescent fixtures, both are working, and I found another main junction box that connects all five lights (the three that not working and the two that is working) and I found a blue wiring that has current in it but it is not connected to anything. Could that be the problem?

Answer
Hi.

It probably is not the problem.  Unless the wire came loose.  Most likely there is just a wire loose under the wire nut.  All you can do is check all of the wire nuts. If those 3 are on a separate switch, the switch could be bad too.

Be careful if you try to connect the blue wire to something. You could end up with a 220 volt short circuit, or putting 220 volts to the lights.
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Electrical Wiring in the Home

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Bob Sponaugle

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Just about any home wiring question. (not appliance repair) I have done all kinds of home wiring for myself, including adding a new breaker box, etc. Please, questions from North America only. Please be specific with details.

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