24vdc with 110 in same cable on separate conductors

[krenik]

Can you run 24vdc circuits in the same cable as 110. We are using cable rated for 600 volts like an IMSA rated 9 conductor awg 14. I have been told by our local inspector that it's ok if the cable is rated for the AC.

Thanks,

 

[petersonra]

yes. As long as the insulation exceeds the highest voltage seen AND you are not dealing with power limited circuits.

 

[infinity]

You need to check the classification of the 24 volt circuit. A class 2 or class 3 circuit can not be in the same cable as 120 volt power circuits. Look at 725.55.

 

[iwire]

You need to check the classification of the 24 volt circuit. A class 2 or class 3 circuit can not be in the same cable as 120 volt power circuits. Look at 725.55.

I agree with Trevor....unless those class 2 or 3 circuits are reclassified as class 1 and treated as class 1 conductors from that point forward.

725.52(A) Exception 2 (2002)