Vibration reduction wire formed by combining aluminum clad steel cores and aluminum-alloy twisted wires

Abstract

The invention provides a vibration reduction wire formed by combining aluminum clad steel cores and aluminum-alloy twisted wires.Natural vibration frequencies of all layers of the aluminum alloy wires and aluminum clad steel cores are different and are mutually interfered, and therefore aeolian vibration energy is automatically consumed, and the vibration reduction effect is achieved.The vibration reduction wire comprises an inner core conductor and outer layer conductors, the inner core conductor is formed by twisting multiple aluminum clad steel wires, the outer layer conductors comprise at least two layers, each layer of the outer layer conductors is formed by combining multiple sections of aluminum alloy wires with the same radian, the outer layer conductor on the innermost layer forms an enclosed first circular ring surface structure in a combined mode, each layer of the outer layer conductors forms the corresponding enclosed circular ring surface structure in a combined mode, the outer layer conductors of the relative-inner layer are arranged in a circular inner cavity formed by the enclosed ring surface structure composed of the outer layer conductors of the adjacent relative-outer layer, and the inner diameter of the enclosed ring surface structure composed of the outer layer conductors of the adjacent relative-outer layer is large than the outer diameter of the enclosed ring surface structure composed of the outer layer conductors of the relative-inner layer.

Description

technical field [0001] The invention relates to the technical field of overhead power transmission lines, in particular to a vibration-damping wire formed by combining an aluminum-clad steel core and an aluminum alloy stranded wire. Background technique [0002] With the continuous development of the national economy, the power transmission capacity and transmission distance have increased rapidly, large-capacity, long-distance transmission lines have been put into operation one after another, and the transmission voltage has also increased. As the carrier of the electric power of the transmission line, the wire is an important part of ensuring the safe operation of the power system. The vibration problem of overhead lines is an important problem in power transmission. The existing overhead transmission lines are basically regular twisted round wires, which have no vibration-reducing effect. Rain, ice, snow, lightning, etc.) and other external conditions are prone to variou...

AI Technical Summary

Problems solved by technology

Among them, the breeze vibration of the wire is the most frequent, and the vibration lasts for a long time, which often causes the fatigue of the wire to break, or even break the wire, resulting in an asymmetric operation of the circuit, which is very unfavorable to the stability of the power system.

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