Steel-aluminum phase conductor overhead transmission line with integrated fiber-optical sensor DISTRIBUTION temperature and strain

摘要

The invention relates to electrical engineering, namely to designs of uninsulated wires for overhead power lines. The wire comprises a core made of several steel wires twisted. Superimposed over the core wire current carrying parts in the form of a helix of circular aluminum wires. Said outer layer comprises a temperature sensor distribution. It consists of a steel tube with an outer diameter equal to the diameter of the aluminum wire, housed inside it, at least one freely laid, optical fiber. The core comprises a deformation sensor consisting of a steel tube with an outer diameter equal to the diameter of the core wire, placed inside the optical fiber in the dense polymeric coating. Clearance steel temperature distribution of the sensor tube is further filled with a thixotropic hydrophobic gel, and the optical fiber is laid with an excess length of at least 0.8%. The deformation sensor spaces between the dense polymeric coating of an optical fiber and a steel tube comprises a sealing coating that prevents slippage.