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Discussion Starter · #1 ·
Hello all. I am about to start a kitchen renovation and will need to move a 240 volt outlet for my stove by about 6 feet or so. The current receptable is served by a run of SE Style R cable. To move my outlet, is it acceptable to connect the existing SE cable to NM-B in a junction box and finish the run to the new location with NM-B? Or do I need to replace the SE going back to the panel with new NM-B?

Also, before anyone asks - yes, my area allows homeowners to do their own electrical and the work will be inspected by the city, which will give me piece of mind.

Thanks!
 

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If that cable has 2 hots, an insulated neutral, and a separate ground, you should be fine to splice and extend it.

If it's a pre-1996 install, you might only have two hots and a combined neutral/ground in the cable, and you can't extend it. In that case, you'd have to run your new NM all the way back to the panel.
 

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Discussion Starter · #3 ·
Thanks! I haven't looked yet to see how many wires are in there. If there is a combined neutral/ground, is it not kosher to connect both the neutral and ground of the new NMB to that single wire of the SE? I saw that mentioned somewhere but didn't know if it is safe or allowed.
 

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Basically, those combined netural/ground circuits were legal up until 1996, but now they're not. You can keep using them if they're there, but you cannot extend or modify them.

At a glance, if your stove outlet has 3 prongs, you probably have the old style stove circuit. If it has 4 prongs, you got a new style circuit.
 

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As long as the JB remains accessible and is large enough, the existing cable has 4 conductors and you make the proper splices (the SE is probably aluminum). The splices are not exactly a normal DIY job.
 

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Discussion Starter · #7 ·
Busman, I have never spliced aluminum to copper before. I have seen the purple connectors for aluminum to copper, but is it more complicated than that with these larger gauge wires for a 240 outlet? Do you think I'd be better off just running new 6-3 romex back to the panel and getting rid of the SE? It's probably only 12 or 15 feet back to the panel.
 

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You can replace the cable for less than the cost of the connectors to splice the aluminum to copper.

The purple Ideal wire nuts will not work with #6 so you would need to use something like a Polaris pre-insulated connector.
 

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Discussion Starter · #9 ·
Moot point. I pulled the outlet and the wire is copper. Also, the cable says Colonial Flex type NM-B 6-3 with ground operator 5. So I guess it's not SE, even though it looked like it at a glance.
 

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Moot point. I pulled the outlet and the wire is copper. Also, the cable says Colonial Flex type NM-B 6-3 with ground operator 5. So I guess it's not SE, even though it looked like it at a glance.
Good to go, just make sure the box remains accessible!
 
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