I HAVE AN OLD HOUSE 1952,THERE WAS AN ADDITION AND A NEW BOX INSIDE THE HOUSE,AND THERE ARE SOME OLD WIRING THAT ARE BOTH WHITE AND THAT WORRIES ME,ESPECIALLY THAT I HAVE HIGH LIGHT BILLS,I CAN READ 120 V BETWEEN HOT AND GROUND BUT INT HE OLD AREAS THERE IS NO GROUND WIRE.HELP GUYS.
If you are worried about safety, call an electrician and have him inspect the wiring.
If you want all the wiring brought up to code, call several electricians and get estimates to have your house re-wired.
If you want to save on your electric bill, new wiring will not do this. However learning about energy savings will help. You can get new "Energy Star" appliances, install compact flourescent bulbs, get a solar water heater, add more insulation to your home, install new "Energy Star" windows, etc. Here are some energy and money saving links...
question about having your house re-wired. If the existing wires are all snugly clamped to the framing, then how are the old wires removed? Does all the drywall have to come off, or would all the old wiring be disconnected from the main circuit box and just left alone while new wires are fished thru?
I appreciate your response,There is no knob & tube,but some areas has
2 white wires,and others have b&w ,my question is fire safety,Since someone can read 120v between hot and ground,Now which white wire suppose to be hot?
The place where you can have a white wire connected to the hot side is in a switch loop using a cable like Romex. You are supposed to reidentify the white to some other color but that is a fairly new rule. When you use a cable fior a switch loop you feed the hot into the white and the black is the switched return so the installer at the light fixture end is presented with a hot black (switched leg) and the regular white neutral. At the source end seeing a white under a wirenut with a black should tip you off that this is a switch leg.
Switch legs using Romex is about as "plain" an "old wire" as you can get. There is at least one in most ceiling boxes unless you live in Chicago. (Romex is illegal there)
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