OPGW optical cable opgw-24B1-50 with complete specifications

Description :

　　OPGW optical cable OPGW-24B1-50 specification

　　Application of OPGW optical cable;

　　Name: Fiber optic composite overhead ground wire optical cable

　　Model: OPGW

　　Core count: 4 to 96 cores

　　When replacing the old line ground wire with OPGW optical cable, it is necessary to choose an OPGW that is equivalent to the mechanical and electrical characteristics of the original overhead ground wire. That is, the outer diameter, unit length weight, ultimate tension, elastic modulus, coefficient of linear expansion, short-circuit current and other parameters of the OPGW should be close to the existing ground wire parameters. This can not only avoid changing the existing tower head and reduce the amount of renovation work, but also ensure the safe distance between the OPGW and the existing phase conductor, ensuring the safe operation of the power system. To meet these conditions, the cost of purchasing and installing optical cables will increase exponentially.

　　Product application: Power communication

　　Characteristics of OPGW optical cable products:

　　Combining the dual functions of ground wire and communication optical cable, it eliminates the huge cost of repeated installation and maintenance; Installed on the top of the overhead power line tower, without considering factors such as hanging points and electrical corrosion; During the renovation process of the old line, the outer diameter and tensile strength of the optical cable can be better matched than another ground wire; Large transmission capacity, high communication quality, and good reliability; Has superior mechanical and electrical performance.

　　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. OPGW optical cable OPGW-24B1-50 specification

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