Which color indicates a ground wire in some color schemes?

Which color indicates a ground wire in some color schemes?

• A. Green
• B. Green with yellow stripes
• C. Either A or B
• D. Neither A nor B

Answer: (C)

Ground wires are identified by color to clearly mark the path for fault current. In many color schemes, the grounding conductor is green. In other schemes, especially for protective earth, the color is green with yellow stripes. Because both green and green-with-yellow-stripes are used to mark a ground path, either color may indicate a ground wire. That’s why either color can indicate ground.

Ground wires are identified by color to clearly mark the path for fault current. In many color schemes, the grounding conductor is green. In other schemes, especially for protective earth, the color is green with yellow stripes. Because both green and green-with-yellow-stripes are used to mark a ground path, either color may indicate a ground wire. That’s why either color can indicate ground.