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  1. #1
    Join Date
    Sep 2007
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    Long Island, NY
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    Default Grounding old oulets

    I was doing a job for someone in a 1950's cape. My electrician installed three outlets and some other things for me.
    My customer asked about grounding all the outlets in the house. Approx 24 of em'. Small house.
    My sparky told me he pushes a 10' copper grounding rod into the ground outside ..just on the other side of the main panelbox in the basement...
    he connects the grounding rod and panel box...that I get...what I don't get is how he turns all the two wire feeds (there's no third wire in the protective fabric) in the house into two wire with a ground. He adds new outlets replacing the two prong old ones then adds a grounding wire from the new recepticle to the old metal boxes...he mentioned something about the old (in good shape) casings/insulation/protective fabric which he says is made from asbestos?? That he can get a grounding off of that????
    Sounds too weird to me...can anyone explain what they think he means before I go back and ask him myself.
    thanks
    andy
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  2. #2
    Join Date
    Aug 2007
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    Default Re: Grounding old oulets

    Nope ... don't buy it.
    Asbestos is not a conductor and the insulating jacket that surrounds the cable is not conductive either.
    The only way I can see him doing this is if the wiring is BX. Then he would be relying on the metal jacket of the BX being the ground conductor back to the panel. That would be assuming the BX is secured to each box properly with metal strains.

    ...he mentioned something about the old (in good shape) casings/insulation/protective fabric which he says is made from asbestos?? That he can get a grounding off of that????
    That's a pretty big assumption the jacket is in good shape ... maybe he has X-Ray vision.

  3. #3
    Join Date
    Sep 2007
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    Default Re: Grounding old oulets

    Quote Originally Posted by canuk View Post
    Nope ... don't buy it.
    Asbestos is not a conductor and the insulating jacket that surrounds the cable is not conductive either.
    The only way I can see him doing this is if the wiring is BX. Then he would be relying on the metal jacket of the BX being the ground conductor back to the panel. That would be assuming the BX is secured to each box properly with metal strains.

    That's a pretty big assumption the jacket is in good shape ... maybe he has X-Ray vision.
    Well thats why I posted this question. Made no sense to me either.
    I'm wondering if I'm missing something is all.
    Wondering if there is a way to ground two wire or do you have to rewire the entire house which would be a big drag.
    And yeh...I know BX might work but thats not the case here.
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  4. #4
    Join Date
    Aug 2007
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    The deep South
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    Default Re: Grounding old oulets

    Canuck is correct . Your " Electrician " is full of it . No telling what he has done to other clients . He should be reported .

  5. #5
    Join Date
    Jun 2007
    Location
    Fayette County, Ohio
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    Default Re: Grounding old oulets

    The only way I know to do it without a complete rewire is to run a new ground wire from the panel box to each outlet.
    Jack
    Be sure you live your life, because you are a long time dead.-Scottish Proverb

  6. #6
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    Default Re: Grounding old oulets

    Quote Originally Posted by JLMCDANIEL View Post
    The only way I know to do it without a complete rewire is to run a new ground wire from the panel box to each outlet.
    Jack
    Jack...thanks...good idea!
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