overhead transmission line

Definition

Electronics

  • A transmission line, such as that utilized for power or communications, whose conductors are suspended above the ground using supports, such as poles, towers, or other structures such as buildings. If open wire lines are used, a dielectric such as ceramic or glass is utilized to safely attach such lines to their supports. Also called overhead line (2).
http://www.dictionarycentral.com/definition/overhead-transmission-line.html