Results 1 to 7 of 7
  1. #1
    Steve Myers's Avatar
    Steve Myers Guest

    Default How can this even work

    It must be my week for finding "who would have thought" wiring.
    Inspecting a disconnect for a dock on the lake I found the following:
    See Photo please.
    The disconnect panel is being feed with two hot conductors only.
    The 120v circuit is off one side.
    The ground/neutral buss is grounded to ground rod drive at the shore.
    The 3 way switch travels for the lights are made up from the romex showing. The switch leg at house does not have the ground attached.
    The outlets are gfci receptacles. They show wiring OK and trip out with the test button.
    The 50 amp shorepower breaker trips with the test button.
    The owner said it was wired 15 years ago.
    We are currently under NEC 2005.
    How can this even be working?

    Similar Threads:
    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    2018 ASHI InspectionWorld

  2. #2
    Join Date
    Aug 2008
    Location
    Maryland
    Posts
    1,899

    Default Re: How can this even work

    I hate to call BS, but I don't remember the color jacketed NM being that old. Also since you say that panel is for a dock, I will assume that conduit is outside. NM used outside is not allowed.

    Prior to the 08 a 3 wire feeder would have been allowed as long as no other metallic paths existed between the building and the dock. The neutrals and grounds would have be bonded.


  3. #3
    Join Date
    Mar 2007
    Location
    Philadelphia PA
    Posts
    3,177

    Default Re: How can this even work

    Sounds like the neutral is the earth, literally.

    "There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
    www.ArnoldHomeInspections.com

  4. #4
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,251

    Default Re: How can this even work

    This is what I see (among many other things, but this should help explain part of what you are asking):

    The back center raceway contains a green conductor, a white conductor, a red conductor, and a black conductor, all of which are the feeders as the red and black conductors go to the breaker marked shore power, with the white conductor also going to that breaker and then continuing on albeit with a smaller conductor size, to the ground/neutral terminal bar. That indicates to me that the breaker marked shore power is a main for this panel, which is supplied with 120 volt / 240 volts.

    I did not get into what is wrong in that panel.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  5. #5
    Steve Myers's Avatar
    Steve Myers Guest

    Default Re: How can this even work

    The conduit with the red, black, white and green go to the 50 amp shorepower outlet. That white is the load side of 50 amp GFCI. The line side of it goes to the common buss bar used for neutral and ground. The only wires from the house panel are the two conductors in the same conduit as the 3 way switch travelers. The dock lightss get their power from the 20 amp breaker that is above the 50 amp breaker but did make my photo.


  6. #6
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,251

    Default Re: How can this even work

    So this is not the panel at the dock? It is the panel which feeds the dock and is located at the house?

    Do you have a photo showing the entire panel?

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  7. #7
    Steve Myers's Avatar
    Steve Myers Guest

    Default Re: How can this even work

    This panel is at the seawall used as required form of disconnect. It is feed off the house panel. I am off the rest of the week, and the additional photos are at the office. Here is crude drawing.

    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •