What is the significance of the color coding on electrical wires?

• A. It shows the age of the wire
• B. It indicates the purpose of each wire
• C. It reflects the wire's current capacity
• D. It denotes the manufacturer of the wire

Answer: (B)

The significance of color coding on electrical wires primarily lies in its ability to indicate the purpose of each wire within an electrical system. Different colors represent different functions, such as phase, neutral, or ground. For instance, in most wiring systems, black or red wires denote live or hot connections, white wires usually signify neutral, and green or bare wires indicate ground. This system of color coding allows electricians and technicians to quickly identify the role of each wire, facilitating safer and more efficient installation, maintenance, and troubleshooting of electrical systems. Understanding these color codes is essential for ensuring compliance with safety standards and regulations in electrical work.