Electrical Wiring in the Home/3wire


I need to move a light switch to a new electrical box.  From an electrical box with a 2-wire coming from a light and a 2-wire power source can I take a 3-wire and run to a new electrcal box to be used solely as the new light switch?  I know I could do this by running two 2-wires to the new box but i would like to do it with just one 3-wire.  For clarification I only need the light switch to work at the new electrical box.


You can do it with 2 wires, plus the bare ground. The white wires would connect to each other. You would need only to extend the two black wires. (You can use the new white wire as one of the black wires, but put black tape on it, so that it is marked as hot.

Be aware, that you can not remove or bury the old box. It has to be accessible with a blank cover.
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Electrical Wiring in the Home

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Bob Sponaugle


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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