Ac and Dc conductors in same raceway

[Rich Elec.]

I am looking for a Code Section that allows or restricts the installation of AC conductors and DC conductors sharing the same raceway. I am thinking that this is not allowed. Because, voltage could be induced into each systems conductors. This is a general question not related to any specific installation. But, I did check Art.690 PV Systems.

 

[Gregg Harris]

I am looking for a Code Section that allows or restricts the installation of AC conductors and DC conductors sharing the same raceway. I am thinking that this is not allowed. Because, voltage could be induced into each systems conductors. This is a general question not related to any specific installation. But, I did check Art.690 PV Systems.

Try this

(C) Conductors of Different Systems.
(1) 600 Volts, Nominal, or Less. Conductors of ac and dc circuits, rated 600 volts, nominal, or less, shall be permitted to occupy the same equipment wiring enclosure, cable, or raceway. All conductors shall have an insulation rating equal to at least the maximum circuit voltage applied to any conductor within the enclosure, cable, or raceway.

Informational Note No. 1: See 725.136(A) for Class 2 and Class 3 circuit conductors.
Informational Note No. 2: See 690.4(B) for photovoltaic source and output circuits.
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[Rich Elec.]

300.3(C)(1).
Thanks Greg.

 

[augie47]

The informational notes in Gregg's post are often the restricting element.

 

[Gregg Harris]

300.3(C)(1).
Thanks Greg.

Yes that is correct. I did not notice that the article and section did not post.