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Thread: Hanging PVC Conduit

  1. #1
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    Hanging PVC Conduit

    We are wiring a horse barn.
    In some areas it will be easier to go from light to light with a piece of 1/2 PVC hanging from a rod with mineralite straps.
    It would be ten to 15 ft spans. Is this allowed ?

    Second question .
    Near each end of the barn the customer wants outside dusk to dawn sort of like street lights.
    It would save me 100 ft or more of conduit if I could pull an other circuit through my flouescents. So the fourescents would be used as a j-box or pull box. Is this allowed?
    Last edited by Buck Parrish; 11-27-10 at 06:36 PM.

  2. #2
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    Table 352.30 requires Rigid PVC conduit sized 1/2" through 1" to be supported at intervals not exceeding 3 ft.

    As far as the fluorescent pull box thing, check 410.64.
    We have clearance, Clarence. Roger, Roger. What's our vector, Victor?

  3. #3
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    1. No, the PVC has a requirement to be supported per length.

    2. Yes, the light has to be listed as a raceway, maybe...
    If your even thirsty, your two quarts low.

  4. #4
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    Quote Originally Posted by ericsherman37 View Post
    Table 352.30 requires Rigid PVC conduit sized 1/2" through 1" to be supported at intervals not exceeding 3 ft.

    As far as the fluorescent pull box thing, check 410.64.
    And you may need to think on 352.44.
    Organized people are people that are just too lazy to look for their stuff

  5. #5
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    Quote Originally Posted by ceb58 View Post
    And you may need to think on 352.44.

    Thanks, our lights are hanging so they have a little play in them. I have not had any body around here enforce that rule. With an exception of, if the building has an expanision joint.

    The light didn't have any paper work in the box. So how do I know if it's listed. It has knockouts on each end.

  6. #6
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    Quote Originally Posted by Buck Parrish View Post
    Thanks, our lights are hanging so they have a little play in them. I have not had any body around here enforce that rule. With an exception of, if the building has an expanision joint.

    The light didn't have any paper work in the box. So how do I know if it's listed. It has knockouts on each end.
    Just thinking of the heat in the barn in the summer. Could be enough to cause "snaking" of the PVC.
    One question. How far above floor will the conduit be?
    Organized people are people that are just too lazy to look for their stuff

  7. #7
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    Quote Originally Posted by ceb58 View Post
    One question. How far above floor will the conduit be?

    14 feet high, So it's my understanding, (352.30)that it's allowed if it's strapped every three feet.

    This barn is metal.

  8. #8
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    Here is a pic





    And here is the light with the dust cover.


    Last edited by Buck Parrish; 11-27-10 at 08:01 PM. Reason: Next time I'll resize them first. I hope nobody still has dial up:)

  9. #9
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    Quote Originally Posted by Buck Parrish View Post
    14 feet high, So it's my understanding, (352.30)that it's allowed if it's strapped every three feet.

    This barn is metal.
    That is from the PVC Table 352.30 3ft max between support.
    Organized people are people that are just too lazy to look for their stuff

  10. #10
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    Are you running the PVC on the purlins or on the beams?
    Organized people are people that are just too lazy to look for their stuff

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