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I am getting a new oven range tomorrow and while disconnecting the current one I found out the uninvited guest I had in my house a few years ago had been chewing its way through the wire for the oven. I do believe its 8 gauge wire but since it is an older home it is not 8/3, it has a red, black, and white. I'm assuming the white is the ground.

I have access to the wire from the finished basement downstairs but only enough to just barely get a splice in and put it in a box.

My question would be, do they even make this older wire with no ground anymore? Which junction box would be ideal for this splice? I'm assuming a deep 4 metal box, but how would I ground said box?

wires emerging from a hole in the ceiling

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  • Welcome. Please take the tour. Note that comments do not qualify as answers on this site. Commented yesterday
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    Can you get a wire from the splice point back to either a) the house grounding (grounding electrode) system, b) the panel the circuit comes from (by a different route), or c) a grounded circuit 30A or larger? Commented yesterday

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I would avoid the whole grounding conundrum altogether and simply use a non-conductive box. Make good connections with appropriate wire nuts or other approved connecting devices and move on.

You can use cable with a ground conductor if that's what's available. Just leave the ground wire coiled up in the box.

Keep in mind that the connections must remain accessible, so a blank cover plate is in order.

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    This sounds right, but if using a cable that has a ground wire that is not used (not grounded) isn't it code to mark the junction box (and the point of connection to the range?) with a sticker that says "No Equipment Ground"? This way future interlopers won't mistakenly assume that they have a valid ground at that point. Commented yesterday

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