Аннотация
Safety and reliability of electric systems have always
been issues because of the high reliability requirements
of power supply in this nation. These demands are ever
increasing. Overhead cables represent a significant
portion of electric power facilities. These cables have
a finite life and their safety and reliability depend upon
the way they are used and the static and dynamic loads
they endure. It is the purpose of this paper to review
the forces which act on cables and how service life is
affected. The expanded use of fiber optics in the
electric power industry has introduced the use of optical
ground wires (OPGW) to the family of overhead cables and
these also are influenced by the same forces •
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