Page 2 of 2 FirstFirst 12
Results 11 to 16 of 16

Thread: IBC - Residential Requirement

  1. #11
    Join Date
    Oct 2007
    Location
    New Jersey
    Posts
    5,050
    Quote Originally Posted by wwhitney View Post
    The two requirements are both in force, it's not either/or. So in your example you'd still need 6" to comply with the section. If your computation came out greater than 6", then the longer length would apply.

    Cheers, Wayne
    No. The 3" length only applies to boxes that are less than 8" in any one dimension.

    Where the opening to an outlet,
    junction or switch point is less than 8 inches (200 mm) in any
    dimension
    , each conductor shall be long enough to extend at
    least 3 inches (75 mm) outside of such opening.

  2. #12
    Join Date
    Feb 2003
    Location
    Pennsylvania
    Posts
    2,159
    Quote Originally Posted by gadfly56 View Post
    No. The 3" length only applies to boxes that are less than 8" in any one dimension.

    Where the opening to an outlet,
    junction or switch point is less than 8 inches (200 mm) in any
    dimension
    , each conductor shall be long enough to extend at
    least 3 inches (75 mm) outside of such opening.


    That would be about 99% of the boxes in residential.

    How would a min of 6 in not be correct

  3. #13
    Join Date
    Oct 2007
    Location
    New Jersey
    Posts
    5,050
    Quote Originally Posted by david View Post
    That would be about 99% of the boxes in residential.

    How would a min of 6 in not be correct
    in my experience, when writing SOP's or regulations, in the event of ambiguity, the latter-most requirement applies. The second sentence overrules the first.

  4. #14
    Join Date
    Apr 2007
    Location
    Berkeley, CA
    Posts
    1,427
    Quote Originally Posted by gadfly56 View Post
    The second sentence overrules the first.
    No, they are clearly two different requirements, both of which must be met. Whichever gives the longer length controls.

    Cheers, Wayne

  5. #15
    Join Date
    Oct 2007
    Location
    New Jersey
    Posts
    5,050
    Quote Originally Posted by wwhitney View Post
    No, they are clearly two different requirements, both of which must be met. Whichever gives the longer length controls.

    Cheers, Wayne
    You need to have a conversation with the inspector who looked at my last home and made me trim the conductors in the 2-gang because they were too long.

  6. #16
    Join Date
    Jan 2009
    Location
    Maryland
    Posts
    13,306
    Quote Originally Posted by gadfly56 View Post
    You need to have a conversation with the inspector who looked at my last home and made me trim the conductors in the 2-gang because they were too long.
    I agree with Wayne, you cannot ever have less than 6”.
    "Electricity is really just organized lightning." George Carlin


    Derek

Posting Permissions

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