If you are installing a 2 wire AC or MC cable in a building that has 480-277V 240-120V, the code says the ungrounded conductor has to be reidentified for each system. My question is:

Do you special order MC or AC cable with different colored ungrounded conductors or use 2 conductor cable and re-identifiy the conductor?

I may have read that smaller than #4 can not be reidentified (exception do apply to grounded conductors).



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