SUSPENDED OPTICAL COMMUNICATION CABLE Russian patent published in 2003 - IPC

FIELD: construction of fiber-optical communication lines on electric power transmission lines. SUBSTANCE: proposed cable includes central dielectric element, optical fibers in polymer modules, hydrophobic filling agent, internal dielectric sheath compensating for cable twisting and external dielectric sheath. External dielectric sheath carries corrugations of various height and corrugation spacing over its entire outer surface. This approach secures considerable increase of effect of protection of surface of dielectric cable sheath against dry discharge arc in heavy electric field with nonuniform distribution of field over its length thanks to considerable elongation of external surface of cable and more abrupt break of water film over individual sections. EFFECT: increased effect of protection of optical cable against dry discharge arc in heavy electric field. 2 dwg