Main Panel Grounding Wire in Same Conduit as Service Entrance Cables?

Discussion in 'Electrical Forum discussion & Blog' started by Billboe, Aug 22, 2017.

  1. Billboe

    Billboe New Member

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    Aug 22, 2017
    Location:
    Vermont
    I'm installing a meter socket & main panel on my new house. I've run 2" PVC conduit from the outside the house (where the meter socket will be) to the basement (where the main panel will be) for the service entrance cables.

    Can I run the bare grounding cable (that connects to the grounding rods) in the same 2" conduit as the service entrance wires? Due to the fact that the house is already insulated and air sealed, it makes it difficult to make a new hole for the grounding cable.

    Thanks!

    Billboe
     
  2. hj

    hj Master Plumber

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    Plumber
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    Cave Creek, Arizona
    You are talking about a 1/4" to 3/8" hole which would hardly compromise either the insulation or air seal and would be easy to seal.
     
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  4. Billboe

    Billboe New Member

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    Aug 22, 2017
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    thanks for the reply hj... yeah, i know it is a small hole, but...

    the house is super tight (continuous membrane around the entire house) and we'd like to avoid another hole if possible. plus, the continuous air sealing membrane (where the sealing would ideally take place) is buried under blown-in insulation.

    anyway, does anyone know if my original question is a no-no?

    thanks!
     
  5. bgard

    bgard Member

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    Jun 11, 2017
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    NW Indiana
    230.7 exception 1 of the NEC allows the grounding electrode conductor to run in the same raceway as the service conductors.
     
  6. Billboe

    Billboe New Member

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    thanks bgard! at least now i know i have options...

    billboe
     
  7. WorthFlorida

    WorthFlorida The wife is still training me.

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    Retired
    Location:
    Orlando, Florida
    Is the neutral wire insulated along with the service conductors?
     
  8. Billboe

    Billboe New Member

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    yes... neutral is insulated.
     
  9. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    Try to remember it this way...even though neutral may be tied to ground for safety, neutral as well as L1 and L2 are all current carrying conductors, and must be properly insulated.
     
  10. Stuff

    Stuff Well-Known Member

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    Mar 7, 2013
    Location:
    Pennsylvania
    How is the bare cable (GEC) going to exit the conduit on the outside of the house? I doubt the power company would allow it to go through the meter can.
     
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