Results 1 to 9 of 9

Thread: Gas and Electric Separation

  1. #1
    Join Date
    Feb 2005
    Posts
    15

    Gas and Electric Separation

    Can anyone tell me what the separation is required between gas and electric lines?
    Chris

  2. #2
    Join Date
    May 2003
    Location
    Salt Lake City, Utah
    Posts
    5,319

    Re: Gas and Electric Separation

    could you be a bit more specific? Are you talking about equipment? Underground? Overhead?
    Ryan Jackson, Salt Lake City
    Inspector, Instructor

  3. #3
    Join Date
    Feb 2005
    Posts
    15

    Re: Gas and Electric Separation

    Sorry Ryan.....I've had a question posed to me about separation between a gas line and electric line in the same trench.
    Chris

  4. #4
    Join Date
    May 2003
    Location
    Salt Lake City, Utah
    Posts
    5,319

    Re: Gas and Electric Separation

    No requirement.
    Ryan Jackson, Salt Lake City
    Inspector, Instructor

  5. #5
    Join Date
    Feb 2003
    Location
    Seattle, WA
    Posts
    16,922

    Re: Gas and Electric Separation

    I have seen drawings, issued by electric utility companies, showing a minimum separation between their lines and any fluid system piping. It's not an NEC requirement, but there may be rules enforced by the local utilities.
    Charles E. Beck, P.E., Seattle
    Comments based on 2014 NEC unless otherwise noted.

  6. #6
    Join Date
    Feb 2003
    Location
    Indianapolis
    Posts
    6,102

    Re: Gas and Electric Separation

    I don't have a copy of the NESC with me but I believe the NESC now requires a foot of separation.
    Charlie Eldridge, Indianapolis, Utility Power Guy
    Responses based on the 2011 NEC, unless stated otherwise.

  7. #7
    Join Date
    Feb 2005
    Posts
    15

    Re: Gas and Electric Separation

    Thanks to all. I have heard anywhere from 12" to 18", but couldn't find it anywhere in the NEC. I don't have a copy of the NESC, but will try to track one down.
    Chris

  8. #8
    Join Date
    Feb 2003
    Location
    Seattle, WA
    Posts
    16,922

    Re: Gas and Electric Separation

    Originally posted by arkiesparky: I don't have a copy of the NESC, but will try to track one down.
    You might try the local library. Give them a call and ask for the Reference Desk.
    Charles E. Beck, P.E., Seattle
    Comments based on 2014 NEC unless otherwise noted.

  9. #9
    Join Date
    May 2005
    Location
    Redmond, WA
    Posts
    780

    Re: Gas and Electric Separation

    NESC 2001 Rule 354 says "Radial separation of supply and communications cables or conductors from steam lines, gas, and other fuel lines shall be not less than 300 mm (12 in)."

    It also has common sense statements that the separation be adequate for maintenance and repair acces of all facilites.

    My home contractor put my water line, gas line, power service, telephone and CATV all in the same 250' ditch with the waterline at the bottom, 8 feet deep and 12" vertical separations for the rest. His bad glue job on the 2" water fitting burst 10 years later. In the repair, my friend running the backhoe ignored my location warning tapes and ripped the gas line and nicked the service cables. Fortunately no real damage just $1000 repair charge from the gas utility.

    A bit more horizontal separation would have been much better.
    Bob Wilson

Posting Permissions

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