Intelligent safe high-voltage single-core cable

Abstract

The invention discloses an intelligent safe high-voltage single-core cable, which comprises a conductor wire core. A heat dissipation channel is arranged in the conductor wire core in a hollow mode along the axis; an insulating layer, a metal shielding layer, a longitudinal water blocking buffer layer, an anti-corrosion layer and a sheath layer are sequentially arranged on the outer surface of theconductor wire core from inside to outside; a set of tearing lines are arranged between the anti-corrosion layer and the sheath layer; the conductor wire core is divided into a plurality of sections,the plurality of sections of conductor wire cores are electrically connected end to end in sequence through the safety terminals, each section of conductor wire core is formed by twisting a pluralityof leads with the same specification and a hollow seamless steel tube, and the inner parts of the plurality of sections of seamless steel tubes are connected end to end in sequence to form a heat dissipation channel. Heat dissipation can be assisted by arranging the heat dissipation channel; especially when the local temperature is too high, heat can be rapidly dissipated to reduce the temperature, the conductor wire cores are electrically connected through the safety terminals, are automatically disconnected when the temperature exceeds a set temperature threshold value, and are automatically recovered when the temperature is reduced to the set temperature threshold value, the safety performance is very high, dual protection is achieved, and the service life of the cable is prolonged.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to an intelligent and safe high-voltage single-core cable. Background technique [0002] With the development of society, cities are getting bigger and bigger, and the power load is getting higher and higher, so the safety requirements of power supply are becoming more and more important. Urban power supply lines are becoming more and more dense and complex. At the same time, due to the needs of urban appearance, it is required to be as beautiful as possible, try not to use overhead lines, and use cables to enter the ground as much as possible. Because high-voltage cables inevitably generate a lot of heat when they are energized, and the underground usually has poor air circulation and poor heat dissipation, the temperature of high-voltage single-core cables is maintained at a high temperature for a long time, which accelerates the aging of cables, especially the local temperat...

AI Technical Summary

Problems solved by technology

Because high-voltage cables inevitably generate a lot of heat when they are energized, and the underground usually has poor air circulation and poor heat dissipation, the temperature of high-voltage single-core cables is maintained at a high temperature for a long time, which accelerates the aging of cables, especially the local temperature. Exceeding the safe temperature may easily lead to safety accidents

Most of the existing high-voltage single-core cables can no longer meet the safety requirements in actual use

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