Fireproof cable

Abstract

A fireproof cable disclosed by the present invention comprises a cable core portion, the cable core portion comprises an inner sleeve and a limiting separator arranged in the inner sleeve, the limiting separator is provided with a plurality of separation fins extending towards the inner sleeve, the plurality of separation fins divide the inner sleeve into a plurality of containing cavities, a cooling cavity is arranged in the limiting separator, a cable core conductor is arranged in each containing cavity, a composite polyvinyl chloride resin insulating layer, a metal shielding layer and a fire insulation layer are sequentially arranged outside each cable core conductor from inside to outside, a heat insulation layer is arranged outside the inner sleeve, a buffer layer is arranged outside the heat insulation layer, a flame-retardant layer is arranged outside the buffer layer, an armor layer is arranged outside the flame-retardant layer, and an outer sheath is arranged outside the armor layer. The limiting separator is arranged in the inner sleeve, rotation of the wire core conductor is prevented, the mechanical performance of the cable is enhanced, the cooling cavity is formed in the limiting separator, water cooling is carried out during use, and the possibility of fire outbreak is reduced.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a fireproof cable. Background technique [0002] With the rapid development of my country's social economy, the amount of cables is also increasing, and there are more and more fires in large shopping malls, factories, coal mines and entertainment venues, which cause tragic losses to people's lives and property. At present, people have a relatively deep understanding of fire prevention and fire safety. With the rapid growth of urban population and the increase of large public places such as high-rise buildings, supermarkets, hotels, hospitals and playgrounds, fire safety becomes more important. [0003] Under normal circumstances, most of the building fires are caused by electrical lines. Since the wires and cables are often laid in bundles, the heat radiation during the combustion process is conducted to each other, causing the rapid spread of the fire. Once a fire occurs, commun...

AI Technical Summary

Problems solved by technology

[0003] Under normal circumstances, most of the building fires are caused by electrical lines. Since the wires and cables are often laid in bundles, the heat radiation during the combustion process is conducted to each other, causing the rapid spread of the fire. Once a fire occurs, communication and The power equipment line will be broken soon, and it is usually accompanied by a large amount of toxic gas when burning. The smoke is billowing, and the human body is more likely to suffocate if it inhales the toxic gas.

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