Fiber optic communication overhead OPGW optical cable OPGW-24B1-100 OPPC composite phase line

Description :

　　 Fiber optic communication overhead OPGW optical cable OPGW-24B1-100 OPPC composite phase line

　　Characteristics and uses of OPGW optical cable;

　　 The construction of OPGW fiber optic cable (also known as optical fiber composite overhead ground wire) generally uses aluminum tube type, aluminum skeleton type, and (stainless) steel tube type. The construction of 48 core OPGW fiber optic cable is to put 48 250 μ m optical fibers into a stainless steel sleeve, wrap the sleeve around aluminum clad steel wire (AS wire), and wrap the outer layer around aluminum alloy wire (AA wire) to form a cable.

　　Characteristics of OPGW optical cable

　　Combining the 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;Having superior mechanical and electrical functions;Good safety function, long service life, and less susceptible to destructive shooting.

　　Structural features:

　　 Small cable diameter, light weight, and low additional load on the tower;

　　 Stainless steel wire diameter is larger than aluminum clad steel wire and aluminum alloy wire;

　　 The stainless steel fiber optic unit is located at the hinge base and is slightly better maintained;

　　 Obtain large fiber optic excess length (once) in a very small steel pipe;

　　 Single layer armor has slightly inferior anti distortion, anti lateral pressure, and anti tensile functions;

　　 Operating temperature: -40 ℃~+80 ℃.

　　Fiber optic communication overhead OPGW optical cable OPGW-24B1-100 OPPC composite phase line

　　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.

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