120V walkway lights linstallation

Discussion in 'Electrical Forum discussion & Blog' started by drick, May 31, 2009.

  1. drick

    drick In the Trades

    Messages:
    392
    I have a half dozen 120V 3 tier pagoda lights I'd like to install along a new walkway what I am building. I guess the question to you is how would you do this? I could run 1/2 inch SCH 40 between buried bell boxes and mount the light on top of a relatively short pipe nipple off of the bell boxes, but those bell boxes aren't going to be water tight and under the ground and I think that would be a problem. Maybe it doesn't matter if I run THWN and use silicon filled wire nuts. I could cement over the entire bell box. That would make it water tight, but it would be a PITA to replace a broken light.

    Or should I just forget that whole mess and go with UF wire, silicon filled wire nuts and perma posts http://www.berkeysupply.com/product-714.html ? I initially thought this didn't meet code, but now I'm not so sure.

    Or something else maybe?

    -rick
  2. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    988
    Location:
    NY State, USA
    The boxes cannot be buried or below grade at all. Also, the PVC alone cannot support the boxes.

    This is what I would do. I am partial to Arlington's Garden Post. They have a provision for a receptacle if you want. That or the box can be blanked off. Either way the splice is accessible without removing the fixture.
  3. Alectrician

    Alectrician DIY Senior Member

    Messages:
    689
    In the olden days I would:

    Cut pieces of 2" PVC/ABS as short/long/high/low as you'd like.

    Notch the 2" stubs to clear the PVC 90's and cement/mortar them in place.

    Drill a 1/2" hole in a 2" cap and mount the fixture with a short/close nipple.

    Now they make Rocket Posts/ Perma Posts.

    I have also installed PVC jboxes in the ground, slightly above grade and installed the fixtures on nipples into the appropriate jbox cover. This method leaves the fixture/hardware very vulnerable to damage in most applications.
  4. drick

    drick In the Trades

    Messages:
    392
    Thank you for the replies. I had not seen the Garden Posts before. They are much nicer looking than a jbox above ground. Anyway I'll either go with those or the Perma Posts.

    -rick
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