While both are types of overhead lines used in the electrical grid, transmission and distribution lines serve different purposes and have distinct characteristics:

• Function: transmission lines are the "interstate highways" of the electrical grid. They transport large quantities of high-voltage electricity over long distances, from power generation plants to substations. Distribution lines are the "local roads," carrying lower-voltage electricity from substations to end-users like homes and businesses.

• Voltage: transmission lines operate at very high voltages, typically ranging from 69 kV to 500 kV or more. Distribution lines operate at much lower voltages, usually between 240 V and 66 kV.

• Appearance: Transmission lines are often supported by tall, sturdy steel lattice towers. Distribution lines are typically mounted on shorter wooden or concrete poles. The conductors on transmission lines are generally thicker and often appear in bundles to carry the higher current.

As a leading manufacturer and exporter of equipment for both overhead transmission line (OHTL) and underground cable laying, Ningbo Changshi Electric Power Machinery Manufacturing Limited provides the specialized tools and machinery required for every stage of your project, regardless of whether it's a high-voltage transmission or a local distribution network.