OPGW cable can be suitable for economic use?

AddTime£º15-07-2016   Author£ºadmin

    In the end OPGW fiber is what to do?

    Is the optical fiber placed in the overhead high voltage transmission lines in the ground, used to constitute the transmission line on the optical fiber communication network, this structure in the form of both ground and communication dual function, commonly referred to as OPGW cable. Fiber optic light weight, small volume, has been using the power system in the substation and the center height between transport dispatching telephone, remote signal, relay protection, television images of information.

    In order to improve the stability and reliability of the fiber optic cable, the structure of the cable and wire, the overhead ground wire and the electric cable is developed.

OPGW performance, short circuit current bigger, more need armoured with good conductors, accordingly to reduce the tensile strength, and the tensile strength of, to improve the short circuit current capacity, only increases the metal sectional area, resulting in cable diameter and cable weight increased, thus on the strength of the transmission tower proposed security issues.

     Due to the fiber with anti electromagnetic interference, light weight and other characteristics, it can be installed in the transmission line tower top without having to consider the best frame hanging position and electromagnetic corrosion and other problems. Therefore, OPGW has a high reliability, superior mechanical properties, low cost and so on.

      This technique is especially suitable for the new installation or replacement of the existing ground wire.

       OPGW optical cable is mainly used in 500KV, 220KV, 110KV voltage grade line, by the power outage, safety and other factors, more in the new line on the application.

The OPGW due to the package of metal wire and the cable is more reliable, stable and firm, due to the overhead ground wire and cable composite as a whole, with the use of other means of cable compared, which can shorten the construction period and save construction cost.

      Also if the aluminum clad steel wire or aluminum alloy wire stranding of OPGW, equivalent to set up a good conductors of overhead ground wire can receive a reduction of transmission wire and potential for current, reduce the power frequency overvoltage, improve the power line on line communication interference and risk effect etc. the benefits.