The main difference lies in their function, voltage levels, and distance covered.

• transmission lines: Operate at extra-high voltages (typically 110 kV and above) to transport power over long distances from power plants to substations. They are the initial phase of electricity delivery.

• Distribution Lines: Operate at lower voltages (typically below 33 kV) and carry power over shorter distances from substations directly to homes and businesses. They are the final stage of electricity delivery to the end-consumer.