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    cuba22's Avatar
    cuba22 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Aug 10, 2008, 07:15 PM
    Electrical journeyman test
    How many #12 thhn conductor are allowed in half inch emt
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
    Uber Member
    		  
    #2

    Aug 11, 2008, 03:31 AM
    Hints:

    40% rule for conduit fill
    Cross sectional area of #12 THNN
    Cross sectional area (ID) of specific conduit
    GermanDAWG's Avatar
    GermanDAWG Posts: 7, Reputation: 1
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    #3

    Aug 11, 2008, 05:11 AM
    It is dependent upon the length of the conduit. If it is less than 24 inches long you can put as many wires in it as you can get in it, of course you may have to derate them...
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #4

    Aug 11, 2008, 10:33 AM
    GD,

    Do you happen to have a working knowledge of the NEC code?

    You must know what to do if more than 3 current carrying conductors are placed in a length of conduit. Or what condition are you trying to avoid by not stuffing the conduit almost full of ungrounded conductors?
    GermanDAWG's Avatar
    GermanDAWG Posts: 7, Reputation: 1
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    #5

    Aug 11, 2008, 10:46 AM
    Quote Originally Posted by donf
    GD,

    Do you happen to have a working knowledge of the NEC code?

    You must know what to do if more than 3 current carrying conductors are placed in a length of conduit. Or what condition are you trying to avoid by not stuffing the conduit almost full of ungrounded conductors?

    Why sure I do.. I know that the AHJ has the final say. Do you know that?
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #6

    Aug 11, 2008, 10:49 AM
    Sure do! :)
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