Halogen-free low-smoke low-toxicity double-shielding armored high-flame-retardance ship control cable

Abstract

The invention discloses a halogen-free low-smoke low-toxicity double-shielding armored high-flame-retardance ship control cable. The cable comprises a primary cables, a wrapping layer, a braided shielding layer, an inner sheath, an armored layer and an outer sheath, wherein the plurality of primary cables are combined to form a secondary cell. The secondary battery cell is wrapped by the wrappinglayer, and the wrapping layer is wrapped by the braided shielding layer. The braided shielding layer is wrapped by the inner sheath layer, and the inner sheath layer is wrapped by the armored layer. The armored layer is wrapped by the outer sheath layer. Each primary cable comprises a conductor, an insulating layer and a wrapping shielding layer, wherein the conductor is wrapped by the insulatinglayer, and the insulating layer is wrapped by the wrapping shielding layer. The cable provided by the invention has a double-shielding structure, is excellent in shielding performance, is not affectedby external signals and electromagnetic fields, can effectively enhance the flame retardant performance, and reduces the release of toxic gases and smoke dust during the combustion.

Description

technical field [0001] The invention relates to the field of power cables, in particular to a halogen-free, low-smoke, low-toxicity, double-shielded, armored, and highly flame-retardant ship control cable. Background technique [0002] The environment on the ship is special, the space is airtight, and the population is dense, and the control cable is responsible for important functions such as signal transmission. Due to the large flow of people on the ship and the closed environment, there are many factors that cause fires. When a fire breaks out, ordinary control cables cannot prevent the flame from spreading on the circuit and cannot self-extinguish. Evacuation and firefighting gain time, and the general cable will release a large amount of toxic gas and smoke when a fire occurs, which is not conducive to the evacuation of the crowd; the space utilization rate on the ship is high, the wiring is dense, and the distance between various types of cables is also small. Relati...

AI Technical Summary

Problems solved by technology

Due to the large flow of people on the ship and the closed environment, there are many factors that cause fires. When a fire breaks out, ordinary control cables cannot prevent the flame from spreading on the circuit and cannot self-extinguish. Evacuation and firefighting gain time, and the general cable will release a large amount of toxic gas and smoke when a fire occurs, which is not conducive to the evacuation of the crowd; the space utilization rate on the ship is high, the wiring is dense, and the distance between various types of cables is also small. Relatively small, small communication cables like control cables are easily disturbed by external signals and electromagnetic fields, and may even fuse under strong electric field conditions

[0003] At present, there is no ship controller developed for the closed environment on the ship with excellent flame retardant performance, environmental protection performance, excellent shielding performance, no toxic gas release during combustion, less smoke and dust generated during combustion, and high light transmittance. cable

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