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Can I install a 208Y/120-volt circuit in the same conduit as a 480Y277-volt circuit?
Hi Slim Jim,
I have not heard from you in a while!
Based on the information in the question the answer is yes and this is supported by the language in Section 300.3(C)(1) of the Code. The restriction here is that 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.
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