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How to ground an outlet without a grounding wire

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How to ground an outlet without a grounding wire ctd4x4 04-25-2007
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Posted by ctd4x4 on April 25, 2007, 9:33 am


I picked up a nifty receptacle/GFCI tester, and was surprised that a
number of outlets in the older part of our house (most of the house is
a later addition) are not grounded.

Simple enough. I shut off the breaker, pulled the faceplate and the
outlet out of the box, and intended to connect the line grounding wire
to the screw on the outlet.

After stripping back the sheathing, I realized that the feed cable is
not equipped with a green or bare copper grounding wire. There's just
a black and white.

My question is, short of rewiring the circuit, how do I ground these
outlets?


Posted by Goedjn on April 25, 2007, 12:18 pm



>I picked up a nifty receptacle/GFCI tester, and was surprised that a
>number of outlets in the older part of our house (most of the house is
>a later addition) are not grounded.
>
>Simple enough. I shut off the breaker, pulled the faceplate and the
>outlet out of the box, and intended to connect the line grounding wire
>to the screw on the outlet.
>
>After stripping back the sheathing, I realized that the feed cable is
>not equipped with a green or bare copper grounding wire. There's just
>a black and white.
>
>My question is, short of rewiring the circuit, how do I ground these
>outlets?

You don't. You replace the outlets with GFCIs, and label them
"no equipment ground".

Posted by peter on April 25, 2007, 1:27 pm


>>After stripping back the sheathing, I realized that the feed cable is
>>not equipped with a green or bare copper grounding wire. There's just
>>a black and white.
>>
>>My question is, short of rewiring the circuit, how do I ground these
>>outlets?
>
> You don't. You replace the outlets with GFCIs, and label them
> "no equipment ground".

GFCI would give you pretty good protection.

Also, if/when it is convenient to do so, run a separate ground wire from the
nearest grounded outlet (don't use water pipe) to the ungrounded outlets.



Posted by on April 25, 2007, 3:10 pm



>>>After stripping back the sheathing, I realized that the feed cable is
>>>not equipped with a green or bare copper grounding wire. There's just
>>>a black and white.
>>>
>>>My question is, short of rewiring the circuit, how do I ground these
>>>outlets?
>>
>> You don't. You replace the outlets with GFCIs, and label them
>> "no equipment ground".
>
>GFCI would give you pretty good protection.
>
>Also, if/when it is convenient to do so, run a separate ground wire from the
>nearest grounded outlet (don't use water pipe) to the ungrounded outlets.
>
Why don't use water pipe? Straight question.



Posted by RBM on April 25, 2007, 4:32 pm


If you had fault currents running through the water pipe, and someone like a
plumber, cut the pipe in the process of doing some work, he could get
electrocuted. There was a time when connecting a non grounded outlet to a
cold water pipe was code, but now only the first five feet of water entrance
pipe into a building, would be acceptable



<aspasia> wrote in message
>
>>>>After stripping back the sheathing, I realized that the feed cable is
>>>>not equipped with a green or bare copper grounding wire. There's just
>>>>a black and white.
>>>>
>>>>My question is, short of rewiring the circuit, how do I ground these
>>>>outlets?
>>>
>>> You don't. You replace the outlets with GFCIs, and label them
>>> "no equipment ground".
>>
>>GFCI would give you pretty good protection.
>>
>>Also, if/when it is convenient to do so, run a separate ground wire from
>>the
>>nearest grounded outlet (don't use water pipe) to the ungrounded outlets.
>>
> Why don't use water pipe? Straight question.
>
>



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