central stainless steel tube OPGW with single stranded layer

central stainless steel tube OPGW with single stranded layer OPGW Cable, Optical Fiber Composite Overhead Ground Wire, also known as Fiber Composite Overhead line. The optical fiber is placed in the ground line of overhead high voltage transmission line and used to form the optical fiber communication network on the transmission line. This structure has the double function of ground wire and communication, commonly known as OPGW optical cable.