What is the typical color of a grounding conductor?

What is the typical color of a grounding conductor?

• A. Green or green-yellow.
• B. Red.
• C. Blue.
• D. Black.

Answer: (A)

Grounding conductors are color-coded green to clearly indicate a safety path to earth. When insulated, the grounding wire is green or green-yellow, making it distinct from hot conductors (red, blue, black) and from the neutral (white). Bare copper can also serve as grounding in some systems, but for insulated conductors the standard color is green or green-yellow. This is why green or green-yellow is the typical color for a grounding conductor.

Grounding conductors are color-coded green to clearly indicate a safety path to earth. When insulated, the grounding wire is green or green-yellow, making it distinct from hot conductors (red, blue, black) and from the neutral (white). Bare copper can also serve as grounding in some systems, but for insulated conductors the standard color is green or green-yellow. This is why green or green-yellow is the typical color for a grounding conductor.