The key difference between transmission and distribution lines is their role in the electrical grid and the voltage levels they operate at.

• transmission lines act like the "interstate highways" of the electrical grid. They transport large volumes of electricity at very high voltages (typically over 69 kV) over long distances from power plants to substations. These lines are usually supported by tall, metal towers and are designed for bulk power transfer.

• Distribution Lines are the "local streets and roads" that carry electricity at lower voltages (typically under 69 kV) over shorter distances, taking power from the substations and delivering it directly to homes, businesses, and industrial customers. These are the lines you commonly see on smaller wooden or concrete utility poles in residential areas.

At Ningbo Changshi, we specialize in providing the high-quality overhead transmission line (OHTL) stringing equipment required for both of these critical stages. Whether you are building the long-distance transmission infrastructure or the local distribution network, our tools and equipment are essential for safe, efficient, and reliable power line construction and maintenance.