Fireproof cable

Abstract

The invention discloses a fireproof cable. The cable comprises a cable jacket layer. A cable inner core wire is arranged in the cable jacket layer; the cable inner core wire comprises a core wire protection layer and a cable core wire; more than one elastic air bag sleeve is wrapped outside the cable inner core wire; the elastic air bag sleeve is inflated and expanded; two groups of strutting parts are arranged in each elastic air bag sleeve; the two groups of strutting parts are arranged on two sides of the elastic air bag sleeve, and a middle shaft hole is formed in the elastic air bag sleeve; the strutting parts are arranged on two sides in the middle shaft hole; the two groups of strutting parts are connected through more than one heat conducting wire; the strutting parts strut the elastic air bag sleeve, and a strutted gap cavity is formed between the strutting parts and the outer wall surface of the core wire protection layer. According to the invention, the elastic air bag sleeve is filled with gas and is used as a buffer in daily use, so that external impact is effectively resisted, a fire source is quickly extinguished when spontaneous combustion occurs, the purpose of quick extinguishment is achieved, and flame transfer between cables is reduced.

Description

technical field [0001] The invention relates to a cable, in particular to a fireproof cable. Background technique [0002] Cables are laid in many different occasions, but because the cables are long and used for a long time, the cables must have strong compression, corrosion resistance, fire resistance and shear resistance. However, the current cables are often easy to break. If the coating is damaged, it will be damaged quickly and its life is very short. The cable will spontaneously ignite due to various reasons during use. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fireproof cable with very good pressure resistance and shear resistance, and good fireproof performance, which can greatly increase the service life of the cable and improve the performance of the cable. [0004] The present invention is achieved through the following technical solutions: a fireproof cable, including a cable outer layer, a ...

AI Technical Summary

Problems solved by technology

[0002] Cables are laid in many different occasions, but because the cables are long and used for a long time, the cables must have strong compression, corrosion resistance, fire resistance and shear resistance. However, the current cables are often easy to break. If the layer is damaged, it will be damaged quickly, and the service life is very short. When the cable is used, it will spontaneously ignite due to various reasons. After spontaneous combustion, the flame will quickly spread to other cables, causing each cable group to be ignited, resulting in serious economic losses.

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