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Halogen-free low-voltage fire-resistant control cable

A technology for controlling cables and low voltage, which is applied in the direction of insulated cables, cables, circuits, etc., and can solve problems such as difficulty in escaping from a fire scene, endangering life safety, blocking sight, etc.

Active Publication Date: 2015-12-02
NINGXIA RUIYIN NONFERROUS METAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these flame-retardant cables will release a large amount of corrosive gas and dense smoke during combustion. The smoke blocks the line of sight and makes it difficult to escape from the fire scene; the toxic gas suffocates people and endangers people's lives.

Method used

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  • Halogen-free low-voltage fire-resistant control cable

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Embodiment Construction

[0017] refer to figure 1 The structure of the present invention includes a wire 1, an insulating layer 2 is arranged on the outside of the wire 1, and a flame-retardant layer is arranged on the outside of the insulating layer 2, and the structure of the flame-retardant layer includes a flame-retardant outer layer 3, a carbon fiber isolation layer 4 and a flame-retardant layer. The flame-retardant inner layer 5 is provided with metal connecting wires 6, and the thickness ratio of the flame-retardant outer layer 3, the carbon fiber isolation layer 4 and the flame-retardant inner layer 5 is 10:1:5. The flame-retardant outer layer 3 comprises 100 parts by weight of polyethylene resin, 100 parts by weight of aluminum hydroxide powder, 12 parts by weight of 2,6-dimethyl-4-heptanone and 3 parts by weight of 2-Methyl methacrylate. The aluminum hydroxide powder in the flame-retardant outer layer 3 is non-uniformly distributed, and its content gradually decreases from the inside to the...

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Abstract

The invention discloses a halogen-free low-voltage fire-resistant control cable which structurally comprises a wire. The outside of the wire is provided with an insulating layer, the outside of the insulating layer is provided with a flame-retardant layer, the flame-retardant layer structurally comprises a flame-retardant outer layer, a carbon fiber isolation layer and a flame-retardant inner layer, the inside of the flame-retardant layer is provided with a metal connection wire, and the thickness ratio of the flame-retardant outer layer, the carbon fiber isolation layer and the flame-retardant inner layer is 10:1:5. The halogen-free low-voltage fire-resistant control cable overcomes defects in the prior art, achieves the aim of retarding flames, and avoids generation of poisonous gases in combustion.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a halogen-free low-voltage fire-resistant control cable. Background technique [0002] Traditional flame-retardant cables mainly use halogen-containing materials such as flame-retardant polyvinyl chloride, neoprene, and chlorosulfonated polyethylene as the sheath of the cable to suppress flame spread. However, these flame-retardant cables will release a large amount of corrosive gas and dense smoke during combustion. The smoke blocks the line of sight and makes it difficult to escape from the fire scene; the toxic gas suffocates people and endangers people's lives. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a halogen-free low-voltage fire-resistant control cable, which can solve the deficiencies of the prior art, and avoid the generation of toxic gas during combustion while achieving the purpose of flame retardanc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/29H01B7/295H01B7/22
Inventor 杨文礼李苏平李永华
Owner NINGXIA RUIYIN NONFERROUS METAL TECH CO LTD
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