OPGW-48B1-80 OPGW optical cable has strong corrosion resistance and communication performance

Description :

　　DaZheng brand OPGW-48B1-80 OPGW optical cable has strong corrosion resistance and communication performance

　　OCharacteristics of PGW fiber optic composite overhead ground wire:

　　Fiber optic composite overhead ground wire (OPGW), also known as OPGW optical cable, places optical fibers in the ground wire of overhead high-voltage transmission lines to form a fiber optic communication network on the transmission lines. This structural form combines the dual functions of ground wire and communication.

　　OPGW fiber optic cable development:

　　With the continuous progress of society, the domestic economy has developed rapidly, and people's demands for electricity have become increasingly high. As a result, many problems have arisen, such as the distribution, shortage, command, and dispatch of electricity. Communication has become the main factor limiting the development of the power industry. Traditional communication lines are unable to meet the development requirements of the new era. In response to the comprehensive, broadband, digital, multimedia, and computerized needs of power communication, OPGW optical cables have emerged. OPGW optical cables not only improve the efficiency of power towers, but also fully play the dual role of communication optical cables and ground wires. They not only promote the development of power communication networks, but also bring significant economic benefits to society.

　　OPGW fiber optic cable application:

　　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 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 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.

　　Basic principles for using 0PGW optical cable:

　　Due to the dual role of communication fiber optic cable and ground wire, OPGW fiber optic cable should not only meet the requirements of optical protection and optical communication for OPGW fiber optic cable during its use and installation, but also comply with the mechanical performance and electrical requirements of overhead ground wire for transmission lines. OPGW fiber optic cable should follow the following basic principles during its use. (1) The fiber performance of OPGW optical cable should be consistent with that of ordinary optical cable;

　　(2) The electrical performance of OPGW optical cable should be compatible with the electrical performance of the ground wire;

　　(3) The mechanical properties of OPGW optical cables are compatible with the mechanical properties required for ground wires.

　　Taking OPGW-48B1-80mm2 as an example:

　　OPGW letters represent model numbers

　　48B1 represents the number of optical fibers

　　80mm2 represents the cross-sectional area of the optical cable

　　OPGW fiber optic composite overhead ground wire, with 2 to 144 cores and a cross-sectional area of 35 to 180mm2, in accordance with the DL/T832-2016 standard

　　DaZheng brand OPGW-48B1-80 OPGW optical cable has strong corrosion resistance and communication performance

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