Self-adaptive voltage-dividing anti-compression power transmission cable

Abstract

The invention discloses a self-adaptive voltage-dividing anti-compression power transmission cable, and relates to the technical field of cables, and the key points of the technical scheme are that the self-adaptive voltage-dividing anti-compression power transmission cable comprises an outer insulating layer and three battery core wires. The battery core wires are wrapped by inner insulating layers, the self-adaptive voltage-dividing anti-compression power transmission cable also comprises a Y-shaped pressing sheet composed of three branch arch sheets and three inner expansion sheets, and the branch arch sheets and the inner expansion sheets are alternately arranged; the three battery core wires are uniformly distributed between the outer sides of the adjacent branch arch sheets; an insulating filling layer is arranged among the outer insulating layer, the branch arch pieces and the inner insulating layer; an elastic filling layer is arranged in the Y-shaped pressing sheet; each branch arch sheet comprises an outer expansion sheet and two partial pressure sheets symmetrically arranged on the two sides of the outer expansion sheet, and the two ends of each inner expansion sheet are connected with the partial pressure sheets in the adjacent branch arch sheets respectively. According to the invention, large pressure borne by the battery core wire in a single direction can be dispersed to the periphery of the corresponding battery core wire through the pressure dividing sheet, so that the battery core wire is prevented from being damaged by the large pressure or the tightness of the internal layer structure distribution of the cable is prevented from being destroyed, and the compression resistance and stability of the battery core wire are effectively improved.

Description

technical field [0001] The invention relates to the technical field of electric cables, more specifically, it relates to a self-adaptive voltage dividing anti-voltage power transmission cable. Background technique [0002] Cables are used to transmit directional motion charges and are widely used in power systems and information transmission systems, usually consisting of several wires or groups of wires. In the process of charge transmission, due to the certain resistance of the wires in the cable, when the current flows, the cable core will be squeezed under the action of the magnetic field and force field, which will cause damage to the rubber layer and insulating layer of the cable inner cavity. Wear and tear, after a period of time, may cause the cable to no longer be a sealed structure. Once the cable core comes into contact with the air, it will catch fire, and then burn the entire line, causing accidents. In addition, when the cable is subjected to external pressure...

AI Technical Summary

Problems solved by technology

Due to the relatively high strength of the existing Y-shaped support structure, when the cable is subjected to pressure in any direction along the radius, although the Y-shaped three-leaf hollow support will limit the large deformation of the three electric core wires, at least one of the electric core wires will be deformed. There will still be a large pressure on the core wire, and the internal structure of the cable after compression will rely on the internal insulating filling layer or rubber layer to return to its original state. As the number of compressions continues to increase, its recovery ability will decline sharply. Affect the use of cables

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