Temperature-resistant high-voltage cable and preparation process thereof

Abstract

The invention discloses a temperature-resistant high-voltage cable and a preparation process thereof, and relates to the technical field of high-voltage cables. The temperature-resistant high-voltage cable comprises a plurality of high-voltage cells and a plurality of heat-conducting silicone grease insulating plates, wherein one sides of the plurality of heat-conducting silicone grease insulating plates are fixedly connected with each other, connection points thereof are located at the center of the cross section of the cable, and the high-voltage cells are located in included angles between two adjacent heat-conducting silicone grease insulating plates. According to the temperature-resistant high-voltage cable, the heat-conducting silicone grease insulating plates are additionally arranged on the inner side of a heat-conducting silicone grease insulating layer, so that the high-voltage cable has better heat dissipation capability, the temperature of the metal cell cores is reduced to a certain extent, the resistance of the metal cell cores is further reduced, and the power loss is further reduced; and a cooling fireproof layer, an inner fire-resistant heat-insulating layer, a cooling heat-insulating armored fireproof layer and a flame-retardant outer sheath are sequentially and additionally arranged on the outer side of the heat-conducting silicone grease insulating layer, so that the high-voltage cable has better fireproof capability, and more rescue time is won for the high-voltage cable when a fire occurs.

Description

technical field [0001] The invention belongs to the technical field of high-voltage cables, in particular to a temperature-resistant high-voltage cable and a preparation process thereof. Background technique [0002] High-voltage cable is a kind of power cable, which refers to the power cable used to transmit between 1kv-1000kv, and is mostly used in power transmission and distribution. The electric cores of high-voltage cables mainly include aluminum cores and copper cores. Due to the excellent electrical conductivity of copper conductors, more and more projects use copper core power cables as the main road of power supply systems, while aluminum core power cables are more widely used. Less, especially in the higher voltage power system, the more copper core cables are selected. [0003] Since power cables need to pass through building facilities and relatively densely populated areas, and power cables in these areas are more prone to power accidents due to the influence o...

AI Technical Summary

Problems solved by technology

Although there are already high-voltage cables with fireproof functions, their fireproof capabilities are still not satisfactory.

In the process of power transmission, the battery will generate heat, which will cause the temperature of the battery to rise, and the temperature of the battery will increase, and the resistance of the battery will increase, which will cause a waste of electricity.

Images