An overhead line is a system used to transmit electrical power or signals through wires suspended above the ground. These lines are typically supported by tall structures called poles or towers, which keep the wires at a safe height to avoid contact with people, vehicles, and animals. Overhead lines are commonly used in power distribution and railway systems. The design of overhead lines allows for efficient transmission over long distances. They are often made of materials like aluminum or copper to ensure good conductivity. Overhead lines can be found in urban and rural areas, providing essential services to homes and businesses.