Halogen-free flame retardant thin-wall type control cable for special motor train

Abstract

The invention discloses a halogen-free flame retardant thin-wall type control cable for a special motor train. The halogen-free flame retardant thin-wall type control cable comprises a sheath, an isolating layer, a shielding layer and a plurality of cable cores. The isolating layer is covered by the sheath, the shielding layer is covered by the isolating layer, and the cable cores are accommodated in the shielding layer. The cable cores comprise conductors and insulating layers which cover the conductors. The conductors are formed by twisting a plurality of metal single wires. The insulating layers and the sheath are prepared through a thin-wall extrusion technology, the insulating layers are made of low-smoke halogen-free insulating material, and the sheath is made of low-smoke halogen-free sheath material. According to the halogen-free flame retardant thin-wall type control cable, the control cable is small in outer diameter, low in smoke and free of halogen in the combustion process, good in fire resistance, and completely suitable for a high speed motor train unit project, and can be installed and laid inside a railway vehicle and a high speed motor train unit project or narrow space of an external cable trough and the like.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a halogen-free flame-retardant thin-walled special motor vehicle control cable. Background technique [0002] The wire and cable industry is the second largest industry in China after the automobile industry. In the world, the total output value of China's wire and cable has surpassed the United States to become the world's largest wire and cable producer. With the rapid development of China's wire and cable industry, wire and cable The overall technical level of the cable industry is being greatly improved, and control cables have been widely used in industries such as industry, mining, energy, and railways due to their functions of transmission, control, and measurement signals. High, at present, control cables with multiple functions have been prepared according to different needs, but they still cannot meet the needs. How to improve the control cables, prepare halogen-free, fl...

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Problems solved by technology

[0002] The wire and cable industry is the second largest industry in China after the automobile industry. In the world, the total output value of China's wire and cable has surpassed the United States to become the world's largest wire and cable producer. With the rapid development of China's wire and cable industry, wire and cable The overall technical level of the cable industry is being greatly improved, and control cables have been widely used in industries such as industry, mining, energy, and railways due to their functions of transmission, control, and measurement signals. High, at present, control cables with multiple functions have been prepared according to different needs, but they still cannot meet the needs. How to improve the control cables, prepare halogen-free, flame-retardant, small outer diameter, and strong shielding ability for special motor vehicle control cables, Has become a technical problem to be solved in this field

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