What are typical color codes for hot, neutral, and ground in building conductors?

What are typical color codes for hot, neutral, and ground in building conductors?

• A. Hot colors (black, red, or blue), neutral white or gray, ground green or bare.
• B. Hot colors (brown, orange, or yellow), neutral gray, ground copper.
• C. Hot colors (blue, brown, or orange), neutral white, ground bare.
• D. Hot colors (black, white, or gray), neutral blue, ground green.

Answer: (A)

Color coding in building wiring is used to identify the purpose of each conductor. Hot conductors carry live voltage and are colored with darker or non-neutral colors such as black, red, or blue. Neutral conductors provide the return path and are colored white or gray. Ground conductors are for safety and are colored green or left bare. This combination—hot in black, red, or blue; neutral in white or gray; ground in green or bare—matches standard wiring conventions, making it the best choice. Other colorings mix roles (for example, neutral or ground shown with nonstandard colors) and can lead to dangerous mistakes.

Color coding in building wiring is used to identify the purpose of each conductor. Hot conductors carry live voltage and are colored with darker or non-neutral colors such as black, red, or blue. Neutral conductors provide the return path and are colored white or gray. Ground conductors are for safety and are colored green or left bare. This combination—hot in black, red, or blue; neutral in white or gray; ground in green or bare—matches standard wiring conventions, making it the best choice. Other colorings mix roles (for example, neutral or ground shown with nonstandard colors) and can lead to dangerous mistakes.