Answers To Electrical Questions About Wiring A Dryer Receptacle, Tracing Wires and Wiring High Bay Light Fixtures
September 21, 2009
Christine Mcswyne asks:
I am trying to run power to my electric dryer. I brought a new circuit breaker. Didn’t work. Bought 10/3 wiring to run from circuit box and didn’t work. I notice that the wire from the breaker has a black/white and ground. The wire from the outlet plug from the dryer has a black/white/red and ground.. where do the ground go to the plug. and the red go from the outlet box.. How would this work. The dryer is new.
It sounds like you only have 120 volts there and you need 240 volts. Are you trying to install this under a single pole circuit breaker? Where did you run the 10/3 to; a sub-panel or the main breaker box? What voltage is feeding your breaker box?
Kathy Fox asks:
We bought a house which has an older clothes dryer in it already. It has two cords coming from it, one is the electric cord I know, but the other one is flat and comes out from behind the control panel and goes up to the basement ceiling. Any ideas what its for? I have no idea where it goes.
It’s really difficult to say without being there or seeing a picture of it. If I had to guess, I’d guess it to go to the range. Do you have an electric range or a plug for an electric range?
Don Saltzman asks:
I’m attempting to wire high bay lights that I purchased used. The wire coming out of the panel is 10/3 on a 30 amp breaker. I have five leads coming out of the lamps, “common”, 120 volt, 208 volt, 240 volt and 277 volt. The 10/3 has red, black, white and ground. Which of the 10/3 leads gets wired to the leads exiting the lamps?
You really need to test the wires to determine if all wires are connected at the breaker box or not. If you are going to connect this to 120 volts, then you should connect the white to the common and the black to the 120 volt wire. At the breaker box, check to ensure that the ground is connected to the ground bar, the white is connected to the neutral bar and the black is connected to a single pole breaker.
If you are going to connect this to 240 volts, then you should connect the black wire to the common and the red to the 240 volt wire. At the breaker box check to ensure that the ground is connected to the ground bar, the black is connected to one side of a double pole breaker and the red is connected to the other side of a double pole breaker.
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