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    racingcows's Avatar
    racingcows Posts: 1, Reputation: 1
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    #1

    Jan 5, 2013, 09:30 PM
    Conduit clamps
    What is the required spacing on conduit clamps for 3/4" pvc rigid conduit?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Jan 5, 2013, 10:22 PM
    Depends on install. I believe it is every 3 ft. but if it is running through joists, they can be counted. You also need them in vertical installs from a conduit box, running up a wall.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #3

    Jan 6, 2013, 05:09 AM
    Does not depend on installation, any PVC conduit, sizes 1/2 through to 1", the maximum spacing of support shall be no more than three feet. 1-1/4" through 2" is five feet, and so on.

    If this is a exterior horizontal run exposed to sunlight, get back with the length and the location, as this may need an expansion coupling, and takes a bit to calculate.

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