The primary difference lies in their function and voltage level.

• transmission lines are high-voltage lines used for transporting electricity over long distances, from power plants to substations. They operate at very high voltages, typically 69 kV up to 765 kV or more, to minimize energy loss. These are the large, tall towers you often see crossing open countryside.

• Distribution Lines, on the other hand, take the power from substations and distribute it locally to homes and businesses. They operate at lower voltages (below 69 kV) and are the lines you typically see on utility poles in residential and commercial areas.

Ningbo Changshi is a leading provider of specialized equipment for both overhead transmission line stringing and underground cable laying, enabling the global power grid to function effectively from generation to consumption.