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Upgrading old two-prong outlets with a ground - Will this meet NEC?

Upgrading old two-prong outlets with a ground - Will this meet NEC?

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  #1  
Old 09-30-04, 03:01 PM
arniebuteft
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Upgrading old two-prong outlets with a ground - Will this meet NEC?

The house I am soon to purchase has old two-prong recepticles, no grounding anywhere in the house. Previously, I had planned to tear out all of the old wiring on the main floor, and run new NM cable everywhere. In the basement it's a bit easier, since all of the basement wiring is inside metal conduit.

While having my home inspection done last week, my inspector naturally informed me of the grounding situation. When I asked him about what he would do, he said that I could just run a single ground wire from each recepticle down into the basement. While I'm sure this would work in theory, would it meet code requirements? I assume he meant that I would get some #12 or #14 THHN green wire and run that, depending on the size of the recepticle wiring.

Of course, if I'm going to run a wire from each outlet to the main service panel anyways, I might not be saving that much time and effort if I run a single THHN wire versus running NM cable. Also, wouldn't the THHN wire need to be run in conduit in the basement? How about inside the walls upstairs? Thanks!

-Arnie
 
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  #2  
Old 09-30-04, 03:04 PM
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Join Date: Sep 2002
Location: welland ontario
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Originally Posted by arniebuteft
Of course, if I'm going to run a wire from each outlet to the main service panel anyways, I might not be saving that much time and effort if I run a single THHN wire versus running NM cable. Also, wouldn't the THHN wire need to be run in conduit in the basement? How about inside the walls upstairs? Thanks!

-Arnie
Exactly my thoughts. Might as well run a new NM-B cable.
 
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