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Old 12-21-2009, 04:13 PM   #1
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Default Where's the article?
Anyone in here know which article forbids running 480 and 120 in the same conduit?

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Old 12-21-2009, 04:20 PM   #2
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Anyone in here know which article forbids running 480 and 120 in the same conduit?
Take a look at 300.3(C)(1).

Provided that the insulation of the conductors is rated for the higher voltage and neither circuit is a class 2 or 3 circuit then they are permitted to be installed in the same raceway or cable.

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Old 12-21-2009, 04:22 PM   #3
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Anyone in here know which article forbids running 480 and 120 in the same conduit?
Not an NEC issue. Maybe job site specs.
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