What color is typically used for the equipment grounding conductor?

• A. Green (or green with a yellow stripe)
• B. White
• C. Red
• D. Black

Answer: (A)

Green insulation, or green with a yellow stripe, is used to identify the equipment grounding conductor. This color signals a safety path for fault currents to the grounding system, helping the overcurrent device trip promptly and keeping exposed surfaces at earth potential. White is reserved for the neutral, which carries current during normal operation; red and black are hot conductors that carry live current, not grounding paths. Bare copper is also used in some installations, but when insulation is present, green or green with a yellow stripe is the standard identifier for equipment grounding conductors.