OPGW optical cable OPGW optical cable composite overhead ground wire manufacturer direct sales

Description :

　　OPGW optical cable OPGW optical cable composite overhead ground wire

　　OPGW optical cable, also known as Optical Fiber Composite Overhead Ground Wire. Placing optical fibers in the ground wire of overhead high-voltage transmission lines to form an optical fiber communication network on the transmission lines, this structural form combines the dual functions of ground wire and communication, and is generally referred to as OPGW optical cable.

　　The applicable characteristics of OPGW optical cable are:

　　(1) Lines with high voltage exceeding 110kV have a large span (usually above 250M);

　　(2) Easy to maintain, easy to solve for line crossing problems, and its mechanical characteristics can meet the requirements for large line crossings;

　　(3) The outer layer of OPGW optical cable is metal armor, which has no effect on high-voltage corrosion and degradation;

　　(4) OPGW optical cable must be powered off during construction, and the losses caused by power outages are significant. Therefore, OPGW optical cable should be used in the construction of new high-voltage lines above 110kV;

　　(5) In the performance indicators of OPGW optical cables, the larger the short-circuit current, the more good conductors are needed for armor, which correspondingly reduces the tensile strength. However, in the case of a certain tensile strength, to increase the short-circuit current capacity, the only way is to increase the metal cross-sectional area, resulting in an increase in cable diameter and weight, which poses a safety issue for the strength of the transmission tower.

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