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Thread: panelboard as Jbox

  1. #11
    Join Date
    Apr 2017
    Location
    Boston, MA, USA
    Posts
    29
    Is the SER in this case service conductors or a feeder? I would expect it to be a feeder and not subject to 230.7. SEU on the other hand...

  2. #12
    Join Date
    Jan 2007
    Posts
    2,958
    Quote Originally Posted by Leespark57 View Post
    Is the SER in this case service conductors or a feeder? I would expect it to be a feeder and not subject to 230.7. SEU on the other hand...
    I don't think you ever told us what was ahead of the existing panel.

    jap>

  3. #13
    Join Date
    May 2017
    Location
    Chesterton,IN USA
    Posts
    5
    The panelboard that is now a jbox is still on the backside of the meter can. So the SER cable is service entrance cables that was feeding the panelboard. i ran conduit around the corner and into new panelboard for service cable. So the old panelboard i.e. new jbox has the service cables in the top and branch circuits in the bottom.

  4. #14
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    33,696
    Your AHJ have any specific limitations on how far service conductors can enter a building?

  5. #15
    Join Date
    May 2017
    Location
    Chesterton,IN USA
    Posts
    5
    @kwired, I don't know, this is the first time I've had to do this. I don't know how the original install was ever permitted, about 12" of clearance in front of original panelboard to HVAC ductwork. It had to be moved. So I guess I'll see what inspector says

  6. #16
    Join Date
    Dec 2006
    Location
    Chapel Hill, NC
    Posts
    32,423
    If this is a single phase panel then SEU is the proper name for the cable running from the meter to the fiorst disconnect. If there is an exterior panel or breaker then you would use SER to the interior panel and that would not be service conductors. It seems like there is confusion naming the cable. Ser- 2 hots, insulated neutral and bare ground, SEU has 2 hots and a bare neutral
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