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Testing Light Switch Wiring

I have a light switch in my kitchen that is hot to one side but not the other when its off, like it should but when you turn the light switch on both wires are dead but…

Testing Light Switch Wiring
Background: David, a Homeowner from Hannibal Mo
Question: I have a light switch in my kitchen that is hot to one side but not the other when its off, like it should but when you turn the light switch on both wires are dead but the light works what would cause that?

Dave’s Reply:
Thanks for your electrical question David. I would like to know what kind of electrical tester you are using and how you are testing the switch terminals or wiring. The best way to test the wires of a switch is to test each connection to a ground wire or grounded source. Testing between the two terminals for voltage will produce a reading that will appear incorrect if you do not understand the circuit and the flow of electricity as it is being consumed.

The Following links will assist you with your electrical question:

Kitchen Electrical Wiring

Lighting For The Home
Lighting Electrical Codes

Light Switch Wiring
Wiring Diagrams

Electrical Wire for the Home

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Light Switch Wiring

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