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Grounding Electric Cooktop

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09-17-03, 11:04 PM

jspspec

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Grounding Electric Cooktop

Installing a new ceramic cooktop and noticed that with the old one, the bare ground was simply wrapped around the back end of the conduit plug that goes through the wall plate.

Is this normal?

Should I just connect the new green ground wire in the same location? There is no ground screw on the junction box.

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09-18-03, 11:32 AM

brickeyee

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How many wires are in the wall, 3 or 4?

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09-18-03, 01:42 PM

jspspec

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3 wires, black, red, and white was capped. My new cooktop does not need any 120.

Last edited by jspspec; 09-18-03 at 05:16 PM.

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09-19-03, 09:03 AM

brickeyee

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You have an old 3 wire circuit. Usually they are black, red and bare. What wiring method is used? A raceway system (EMT, ridgid metal conduit, even AC cable) can provide the ground connection. Technically you are not allowed to re-identify a wire as a grounding conductor. To be fully correct you should pull a new 4 wire cable (black, red, white, ground). Using the white wire as the ground in this case would not be a safety problem in any way, just a technical violation.

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