Elastic and extrusion-resistant power cable

Abstract

The invention discloses an elastic and extrusion-resistant power cable. A first elastic tube is arranged in the center of the power cable, multiple first conductors are evenly arrayed outside the first elastic tube, and long shafts of the first conductors are placed in the radial direction of the power cable. The first conductors are wrapped with an inner flame retardant tape winding-wrapping layer, multiple second conductors are evenly arrayed outside the inner flame retardant tape winding-wrapping layer, short shafts of the second conductors are placed in the radial direction of the power cable, multiple second elastic tubes are sequentially arranged between every two adjacent second conductors, and the second conductors are sequentially wrapped with an outer flame retardant tape winding-wrapping layer and an outer protective sleeve layer. According to the power cable, the first elastic tube and the second elastic tubes are adopted for protecting the first conductors and the second conductors, the power cable is excellent in elasticity and extrusion-resistant performance, and when extruded, the power cable buffers extrusion through elastic deformation, so that service life of the power cable is prolonged in a complex working environment.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to an elastic anti-extrusion power cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. They are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In some cases, power cables are required to have extrusion resistance. For example, in the field of automatic production and processing, power cables are often crushed due to the action of processing parts; When the power cable is squeezed, it will inevitably squeeze the conductor core wire, which will affect the quality of power transmission. In addition, the current-carrying capacity of power cables is usually related to the cross-sectional area of ​​the conductor core. When the current increases, the temperature of t...

AI Technical Summary

Problems solved by technology

In some cases, power cables are required to have extrusion resistance. For example, in the field of automatic production and processing, power cables are often crushed due to the action of processing parts; When the power cable is squeezed, it will inevitably squeeze the conductor core wire, which will affect the quality of power transmission

In addition, the current-carrying capacity of power cables is usually related to the cross-sectional area of ​​the conductor core. When the current increases, the temperature of the conductor will increase. Change, so that the insulation reliability of the insulation layer is greatly reduced, affecting the service life of the power cable

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