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Primary Circuit Isolation/Grounding Issue Question

Discussion in 'Electric Signs & Channel Letters' started by Ragnarok1958, Nov 14, 2012.

  1. Ragnarok1958

    Ragnarok1958 New Member

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    Nov 13, 2012
    SIGH... seems we always get the odd ones in this industry! :banghead:

    Here's the situation: A single 10' neon unit mounted above entrance-way of an apartment building. Neon electrodes into housings in metal boxes with secondary returns in flex. but neon passes through a wood 2x12 at one end. :omg: Existing primary installation is from the 1940's(?) - cloth covered wire in conduit/flex, with no ground wire.:omg:

    We removed the (broken) neon for repair at the customer's request (and also disconnected the transformer from the primary circuit so as to prevent its being energized by accident).

    Reinstalling the neon in the existing ungrounded configuration is not advisable in my view and would need updating. Not having a ground to work with presents a problem. I could "isolate" the circuit by inserting a PVC conduit between the existing EMT conduit and our installation, and run a ground to a ground rod installed in a nearby planter, that way our work would be grounded, but I do not know if this would be legal.

    The other option is to tell the customer she needs to have an electrician run a grounded circuit to the location to meet code.

    Thoughts?:help

    TIA for your consideration,
    R.
     
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  2. J Hill Designs

    J Hill Designs Major Contributor

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    Sep 24, 2004
    this
     
  3. Ragnarok1958

    Ragnarok1958 New Member

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    Nov 13, 2012
    Thank you. In the meantime I've been looking through code books and other resources and have come to the same conclusion. Our license does not allow us to do anything other than connect to existing electrical within 6' of the sign location.

    :thankyou:
    R.
     
  4. J Hill Designs

    J Hill Designs Major Contributor

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    Sep 24, 2004
    mine either. C45.
     
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