Why should wires be color-coded?

Wires are color-coded primarily to facilitate the identification of their function within an electrical system. This system of color coding helps electricians and other professionals quickly ascertain the type of wire, its purpose, and the type of current it carries, which is crucial for safety and proper installation. For instance, specific colors may indicate whether a wire is for grounding, hot, or neutral connections, helping to prevent mistakes that could lead to faulty installations or hazardous conditions.

While durability, aesthetic considerations, and wire length might be factors in wire selection and usage, they are not the primary reasons for the practice of color coding wires. Color coding is fundamentally about ensuring clarity and safety in electrical work, reducing the risk of electrical hazards that could arise from incorrect connections.