Intelligent anti-interference low-smoke halogen-free flame-retardant loadable monitoring type medium-voltage cable

Abstract

The invention discloses an intelligent anti-interference low-smoke halogen-free flame-retardant loadable monitoring type medium-voltage cable. The intelligent anti-interference low-smoke halogen-freeflame-retardant loadable monitoring type medium-voltage cable comprises an outer sheath, a steel wire load layer, an inner sheath and a cable core, wherein the outer side of the cable core is extrudedwith the inner sheath, the steel wire load layer is wrapped on the outer side of the inner sheath, and the outer side of the steel wire load layer is extruded with the outer sheath; and the cable core comprises elastic fillers, a fixed support, 6 elastic guide belts, 3 power cable cores, 3 monitoring cable cores and an optical transmission cable core. According to the invention, the inner sheath,the steel wire load layer and the outer sheath are sequentially wrapped outside the cable core, and the fixed support arranged inside the cable core is used for improving the structural strength andthe bending performance of a cable, so that the cable can be conveniently laid and used in a complex mine, the real-time monitoring picture information of an underground production site is effectivelytransmitted, the loading force of the cable is improved, the safety of the load is ensured, the cable can be effectively prevented from burning when a fire disaster occurs, the cable is prevented from burning to generate toxic gas, and the pollution to the environment is reduced.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to an intelligent, anti-interference, low-smoke, halogen-free, flame-retardant, load-monitoring medium-voltage cable. Background technique [0002] Coal is the lifeblood of the economy. my country is rich in coal resources. The mining surface of coal mines is far away from the main channel, some even several thousand meters away. It is very inconvenient to get in touch with the fixed telephone, and it is even more difficult for the management department to keep abreast of the production situation in the well. [0003] With the continuous development of science and technology, the management of coal mines has also been automated. Real-time monitoring of the production site can transmit the real-time picture information of the underground to the ground anytime and anywhere. Because the cable will be bent and dragged during laying, it will also be affected. The impact of falling coals a...

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Problems solved by technology

[0002] Coal is the lifeblood of the economy. my country is rich in coal resources. The mining surface of coal mines is far away from the main channel, some even several thousand meters away. It is very inconvenient to contact the fixed telephone, and it is even more difficult for the management department to keep abreast of the production situation in the mine

[0003] With the continuous development of science and technology, the management of coal mines has also been automated. Real-time monitoring of the production site can transmit the real-time picture information of the underground to the ground anytime and anywhere. Because the cable will be bent and dragged during laying, it will also be affected. The impact of falling coals and stones can easily damage the cable; the core used for transmission inside the cable cannot be effectively fixed with other cores, which can easily cause the cores to squeeze and break each other, affecting data and images transmission; when the cable is laid in inclined shafts and shafts, the cable will be subjected to a very large pulling force and may be broken; if the cable is damaged by falling coals and stones, it will short-circuit, and it will explode when it encounters gas; In the event of a fire, the cable will burn and produce a large amount of toxic gas, which will greatly threaten the safety of human life.

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