Damping optical fiber composite overhead ground wire

Abstract

The invention provides a damping optical fiber composite overhead ground wire. Vibration caused by an OPGW in a natural environment is reduced under the premise of not affecting the quality and the performance of the OPGW; the broken strand phenomenon of the OPGW is reduced; and the communication stability is ensured. The damping optical fiber composite overhead phase conductor comprises inner core conductors and at least one layer of outer layer conductor, wherein each inner core conductor comprises an inner layer conductor, an optical fiber protection tube and optical fibers; the optical fibers are located in each optical fiber protection tube; each optical fiber protection tube is combined with one corresponding inner layer conductor to form one inner core conductor; the outer layer conductor on each layer is formed by combining a plurality of segments of metal wires which are the same in radian and of which the sections are arc-shaped; the outer layer conductor on the innermost layer is combined to form a closed first circular ring surface structure; the outer layer conductor on each layer is combined to form an individual closed ring surface structure; and the outer layer conductor on the relative inner layer is arranged in a circular inner cavity formed by the closed ring surface structure formed by the adjacent outer layer conductor on the relative outer layer.

Description

Technical field [0001] The invention relates to the technical field of overhead transmission lines, in particular to a vibration-damping optical fiber composite overhead ground wire. Background technique [0002] With the continuous development of the national economy, the smart grid, as the general trend of future grid development, has been highly valued by all sectors of society. Optical fiber composite overhead ground wire (OPGW), as the core component of the smart grid system, integrates overhead ground wires and communication functions The stability of its operation is directly related to the normal operation of the smart grid. During the normal operation, the vibration problem of the line is an important problem affecting power transmission. The existing optical fiber composite overhead ground wires are basically round. The wire is normally twisted and has no damping effect. It is exposed to the open field for a long time, and is affected by natural conditions (phoenix, rai...

AI Technical Summary

Problems solved by technology

These three vibrations will cause different degrees of damage to OPGW and transmission lines

Among them, the breeze vibration of OPGW is the most frequent, and the vibration lasts for a long time, which often causes fatigue and broken strands of strands, or even disconnection, resulting in communication interruption, which is very unfavorable to the stability of the power system.

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