A Widely Accepted Practice Is to Identify 3-Phase Ungrounded (Hot)

question 7

Multiple Choice

A widely accepted practice is to identify 3-phase ungrounded (hot) conductors as ____ in 208/120 volt, 4-wire, wye-connected systems.

• A) yellow, green, and blue
• B) black, red, and blue
• C) red, yellow, and green
• D) black, red, and white

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