Corrugated cable – feeder, built on the hard outer conductor in the form of a corrugated tube. Is widely used in various fields of communication, providing excellent performance in damping and held power. Produced specialized types of feeders, for example, radiating, which gives a coating on the length of the track where it runs, for example, in the subway. Most often in a corrugated cable is used as a dielectric polyethylene foam or air filled almost as conductors – annealed copper, which together provide high quality products. In the present nomenclature of the cables with non-combustible wrapper for use at sites with higher requirements of fire safety, as well as feeders with advanced corrugating the outer conductor – super-flexible feeders, usually used for making jumpers.