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Thread: EGC as a GEC or visversa

  1. #1
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    EGC as a GEC or visversa

    I would like to know if it is a violation and if it is not a violation, is it a good idea to use the egc as a gec? After my research I’ve found it to best run them separate being the the gec needs to be continuous and should not be bounded to equipment or fittings. The company master electrician thinks otherwise. Please provide code ref. This is my first post and am looking forward to learning from the best in the biz.

  2. #2
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    Quote Originally Posted by Dbarrett View Post
    I would like to know if it is a violation and if it is not a violation, is it a good idea to use the egc as a gec? After my research I’ve found it to best run them separate being the the gec needs to be continuous and should not be bounded to equipment or fittings. The company master electrician thinks otherwise. Please provide code ref. This is my first post and am looking forward to learning from the best in the biz.
    what research led you to believe this?

    take a look at the exception to 250.121.
    Bob

  3. #3
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    If you are talking about an EGC for an old-school solar inverter that requires one, then 690.47 in the 2014 and previous codes allows you to combine the function into one conductor. The GEC should be bonded to all the fittings and equipment it passes through, that's what the code says. Most solar inverters these days, except for some very big ones, don't require their own GEC at all anymore.

    If you're asking about 690.47(D) for an array electrode then ask your AHJ if you can combine them. Stupid requirement, no practical purpose, so it just comes down to how legalistic your AHJ wants to be about it. Most around here are quite reasonable and either allow us to combine or don't enforce it at all.

    If you're talking about a GEC for a service or something else then see previous response.

  4. #4
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    I think you guys covered it. Thanks


    Sent from my iPhone using Tapatalk

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