An aerial cable is a type of electrical or communication cable designed to be suspended above ground on poles, towers, or other overhead structures.
Aerial cables are constructed to endure outdoor environmental conditions, including UV exposure, wind, ice, and fluctuating temperatures. They are commonly used when underground cabling is impractical or cost-prohibitive, especially over long distances or rugged terrain. These cables often feature self-supporting designs or are lashed to messenger wires to provide mechanical strength and reduce sag.
In commercial and industrial applications, aerial cables may be utilized for telecommunications, power distribution, or signal transmission between buildings, across campuses, or in remote infrastructure environments. Their construction may include weather-resistant jackets, support strands, and shielding depending on the signal type and voltage requirements. While aerial installations offer easier access for inspection and service than buried alternatives, they must be engineered for long-term durability and compliance with relevant codes and structural load limits.
Aerial cables became widespread with the growth of telegraph and electrical power systems in the late 19th and early 20th centuries. Their use evolved from early uninsulated lines to today’s weather-resistant and insulated designs used in modern industrial infrastructure.