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Thread: Duct Bank Photos

  1. #21
    Join Date
    Dec 2007
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    Louisiana
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    274
    Quote Originally Posted by Nick
    It a 535MW power plant in Long beach, CA.
    What kind of plant ( fuel ) ?
    Utility guy --- IBEW member for 35 yrs

  2. #22
    Join Date
    Jul 2004
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    Texas by the Gulf, geat crab, great shrimp
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    Quote Originally Posted by Nick
    It a 535MW power plant in Long beach, CA.
    I thought they banned all power plants.:grin:

    Must be solar or wind.....

  3. #23
    Join Date
    Feb 2003
    Posts
    274
    Where did you hear power plants were banned? They have been going up all over here the last few years. We are doing a 500+MW plant in San Diego right now and on the verge of getting an 800MW plant and several smaller ones.

    This is a combined cycle 2 on 1 plant. (2 natural gas turbines driving a steam turbine) It replaced a very old very dirty plant on the same site. Oh, and it was 575 MW, I was mistaken.

  4. #24
    Join Date
    May 2008
    Location
    London, England
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    740
    A little O/T but such installations are allmost unknown here in the UK , underground cables whether privatly owned or belonging to the power company, are generally SWA (steel wire armoured).
    Such cables are typically direct buried. Ducts of concrete or earthenware pipes are sometimes used to facilitate pulling in additional cables, but this is less common.

    Very large installations sometimes use cable tunnels, through which persons may pass, the SWA cables being hung from hooks along the tunnel walls.

  5. #25
    Join Date
    Aug 2008
    Location
    bumpass,Va
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    35
    Va power is adding another reactor at north anna and its a nuke.

  6. #26
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    Jul 2008
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    Lake Ridge, VA
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    Quote Originally Posted by hot wire
    Va power is adding another reactor at north anna and its a nuke.
    that's cool!

  7. #27
    Join Date
    Apr 2007
    Location
    Huntington Beach, CA (21 Hrs. 32 Min. from Winged Horses)
    Posts
    3,474
    Quote Originally Posted by RB1
    Does anybody know where I can find some good photos of a concrete duct bank with steel reinforcement for a class?
    here ya go..... (18) 3" pvc, 950' long.....

    randy






  8. #28
    Join Date
    Jul 2003
    Location
    New Jersey
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    Looks like you have a burial depth issue especially where the boxes are.
    Rob

    Chief Moderator

    All responses based on the 2011 NEC unless otherwise noted

  9. #29
    Join Date
    Jul 2004
    Location
    Texas by the Gulf, geat crab, great shrimp
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    5,407
    Quote Originally Posted by infinity



    Looks like you have a burial depth issue especially where the boxes are.
    Did you see that dip before enetring what seems like a manhole (round cover on top), 180 bend wasted for burial depth? Either the guy never pulled cables before or other trades right-of way won.....:grin:

  10. #30
    Join Date
    Jul 2003
    Location
    New Jersey
    Posts
    18,931
    Anyone ever work with this concrete pipe?

    Rob

    Chief Moderator

    All responses based on the 2011 NEC unless otherwise noted

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