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    eddydawson's Avatar
    eddydawson Posts: 2, Reputation: 1
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    #1

    Oct 16, 2012, 11:10 AM
    Surface nonmetallic raceway
    Can sch 80 pvc be used under 600 volts between conductors
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Oct 16, 2012, 12:21 PM
    Why not use UL approved NMT. As cheap as PVC.
    eddydawson's Avatar
    eddydawson Posts: 2, Reputation: 1
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    #3

    Oct 16, 2012, 12:26 PM
    It is on a solar project and the have is already installed and inspector turned down, as 2005 code say 300 volts or less I found ul 5 listing that states 600 volts or less using pvc.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #4

    Oct 16, 2012, 01:55 PM
    Ask him why he turned it down? What are you running in the conduit? Possibly because PVC is ASTM but not UL approved and is not permitted for direct solar load. NMT is basically the same material but is UL approved and can be sunlight resistant.
    mike 165278's Avatar
    mike 165278 Posts: 168, Reputation: 7
    Junior Member
    		  
    #5

    Oct 17, 2012, 05:14 PM
    Are you running AC or DC through it? And do you know what brand pipe it is? Where are you? And why is the AHJ quoting code from 2005?
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