480 3ph / 120 single ph same conduit?

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fyre_fiter

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I have recently came into situation at my job where a 3 phase 30 amp 480 machine and 120 single phase 20 amp wires going through same conduit, 3/4"emt. Is this legal to the code?
I ask this question due to I was cited by tthe county fire and building inspector about 3 years ago which we were using the 1999 NEC still.
Thank you
 
Take a look at 300.3(C). If the insulation on all conductors is rated for the maximum voltage of any conductor it is normally legal.
There are situations with some emergency circuits and in Art 725 where it may not be done.
 
fyre_fiter said:
I have recently came into situation at my job where a 3 phase 30 amp 480 machine and 120 single phase 20 amp wires going through same conduit, 3/4"emt. Is this legal to the code?
I ask this question due to I was cited by tthe county fire and building inspector about 3 years ago which we were using the 1999 NEC still.
Thank you
Click to expand...

See 300-3.C 2008 edition
I'm a little slow this morning! Augie beat me to it!
 
thanks for the help

thanks for the help

thank you all for the quick responces on my issue here, it saved me and my crew alot of time not to have to rerun conduit and circuits.
fyre_fiter
 
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