Characteristics of OPGW optical cable OPGW-24B1-70 OPPC optical cable

　　Characteristics of OPGW optical cable OPGW-24B1-70 OPPC optical cable

　　Application and characteristics of OPGW optical cable;

　　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.

　　Chinese name; opgw cable

　　Foreign name; Optical Fiber Composite Overhead Ground Wire, also known as; Characteristics of optical fiber composite overhead ground wire; Anti electromagnetic interference, light weight, etc

　　OPGW optical cables are mainly used on 500KV, 220KV, and 110KV voltage level lines. Due to factors such as power outages and safety, they are often applied on newly built lines.

　　The applicable characteristics of OPGW are: (1) lines with high voltage exceeding 110kV and large span (generally 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 is metal armor, which has no effect on high-voltage corrosion and degradation; (4) OPGW must be powered off during construction, and the losses caused by power outages are significant. Therefore, OPGW should be used in the construction of new high-voltage lines above 110kV;

　　(5) In the performance indicators of OPGW, the larger the short-circuit current, the more it is necessary to use good conductors 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.

　　Characteristics of OPGW optical cable OPGW-24B1-70 OPPC optical cable