In India, electrical wiring follows a specific set of color codes, as defined by the Bureau of Indian Standards (BIS). These color codes are used for wiring in electrical installations to ensure uniformity and safety. The BIS color codes are as follows:
- Red: This color is typically used for phase wires in a three-phase electrical system (415V AC), also known as “live” or “hot” wires.
- Yellow: Yellow wires are used for phase wires in a three-phase system, often for the second phase. However, in some regions, the color blue is used for the second phase.
- Blue: In some parts of India, blue is used for phase wires in a three-phase system, particularly for the second phase.
- Black: Black wires are used for phase wires in a single-phase system (230V AC), also known as “live” or “hot” wires.
- Green: Green wires are typically used for grounding (earth) conductors.
- White: White wires are used for neutral conductors.
- Gray: Gray wires can also be used for neutral conductors, especially in larger installations.
- Brown: In some cases, brown wires are used for earthing conductors, while green may be used for phase wires in a single-phase system.
Please note that while these are the standard color codes, variations can exist in different regions of India. It’s essential to be aware of local electrical codes and practices, as well as to consult with a licensed electrician or follow the guidelines provided by the local electrical authority when working on electrical wiring or installations in India. Following these standards helps ensure electrical safety and consistency in wiring practices.