I haven't turned the power on at my new home yet. I'd like to make
sure all of the electrical circuits are completely safe before I have
the electrical company turn on the power. Is there any tool or method
to check wiring that doesn't have power running to them? I'm tring to
find out what wires run from a 100 amp square D pannel, to all of the
outlets in the house. Then I'll label the circuit breakers as I trace
them, and make sure the circuits are o.k..
1. Call a reputable licensed electrician and pay him to check your work
for code compliance before you call the power company to connect. Money
well spent. He can also answer your question about your ground you raised
in another post.
2. If you insist on doing it yourself , you can check your wiring while
it is DISCONNECTED from the inlet power by using a battery source. Get a
6 volt lantern battery. Connect the negative to your panel strip where
the white leads are connected. Pull the circuit breaker on circuit #1.
Connect the positive side of the drycell to the black lead you have
connected to that breaker location. That should put 6 volts on that
circuit and no other. Check each outlet with a voltage meter. You should
see power between the hot side and the neutral and between the hot side
and the ground wire at each test location.. You should of course read
zero between the neutral and ground. You can map your entire house by
doing this a circuit at a time. Include your overhead fixtures. Include
your furnace, dishwasher, garbage disposal and any other dedicated
circuit. Check that all switches work as expected while the 6 volts are
Since you did your own work, you should already have a detailed circuit
diagram of the entire house and that will make the testing and trouble
shooting easy. If you only know the location of work you added to the
house, you can finish the diagram once you see where all the pieces fit.
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