Why are overhead power lines marked with different colors?

Overhead power lines are marked with different colors primarily to indicate different voltage levels and safety hazards. This system is critical for ensuring safety for both utility workers and the general public. Higher voltage lines, which can pose significant safety risks, are often marked distinctly to alert individuals working near them. The color coding serves as a visual cue, enabling quick identification of the potential dangers associated with the various lines, thereby promoting safer practices when working around or near these electrical installations. This system of marking helps prevent accidents and ensures that those working in proximity to these lines take appropriate precautions based on the voltage level they are dealing with.