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Thread: Some Questions for my 208Y/120 3P 4 wire 200 amp service installation

  1. #1
    Join Date
    Feb 2018
    Location
    Lake Ariel, PA, USA
    Posts
    1

    Some Questions for my 208Y/120 3P 4 wire 200 amp service installation

    I'm installing my own 208Y/120 3P 4 wire 200 amp service for my shop in lake ariel, PA. I have a few questions regarding the Neutral and the ground. So let me get things up to speed. This is a Brand new service installation. My poco is installing a new pole and a transformer for me after I pass my inspection.
    This is a overhead service entrance, I'm running (4) 3/0 copper conductors to my 7 jaw murray meter pan down the conduit then directly into my siemens p1 250a panel with a 200 amp main breaker. My questions are regarding the ground and the neutral. I read that if its not a subpanel and is actually the main service entrance panel then you can ground from the neutral bar but this is what confuses me a bit. I feel like the Neutral should be separate as the return path back to the transformer.
    As of right now I'm confused about where to connect my ground rods to.
    Should I ground my Neutral in the meter pan to the rods? or should I run a ground wire from my neutral bar in the panel all the way back out to the grounding rods? and what about a separate isolated ground bus bar in the corner of the panels should that go out separately to the ground rods? any help would be appreciated.

  2. #2
    Join Date
    Feb 2003
    Location
    Seattle, WA
    Posts
    18,968
    I am closing this thread in accordance with forum rules. This forum is intended for electricians and electrical contractors, inspectors, and engineers. We are not permitted to provide assistance to a person who is not employed in this industry. You would have had to agree to this rule during your registration process. Your profile suggests that you might have met this requirement earlier in your career, but that you do not meet it now.
    Charles E. Beck, P.E., Seattle
    Comments based on 2017 NEC unless otherwise noted.

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