When using cable for the wiring of 3-way switches, NEC 200.7(C)(1)permits the use of a conductor with insulation that is white or ____ or has three continuous white stripes (not too common)as a switch supply only if the conductor is permanently reidentified by painting or other effective means.
A)black
B)red
C)green
D)gray

Question

Quizplus · Accepted Answer

Gray is the correct choice because NEC 200.7(C)(1) allows a conductor with gray insulation to be reidentified for use as a switch supply, similar to a white conductor.

When Using Cable for the Wiring of 3-Way Switches, NEC