Flame-retardant and high-temperature-resistant railway signal cable

A railway signal and high-temperature-resistant technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems that the cables cannot meet the requirements of on-site disaster relief, long self-extinguishing time, poor flame retardancy, etc., and achieve a reasonable design of the sheath structure, The effect of improving safety reliability and signal transmission stability

Pending Publication Date: 2020-12-22
江苏通鼎光电科技有限公司
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Problems solved by technology

As the central nervous system of the railway, the railway signal cable is generally laid on the edge of the track along its track. In case of a sudden fire, the cable with poor flame retardant performance cannot meet the requirements of on-site d

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  • Flame-retardant and high-temperature-resistant railway signal cable
  • Flame-retardant and high-temperature-resistant railway signal cable

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Embodiment Construction

[0018] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0019] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention Creation and simplification of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should no...

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Abstract

The invention provides a flame-retardant and high-temperature-resistant railway signal cable. The flame-retardant and high-temperature-resistant railway signal cable comprises a cable core and a protective layer outside the cable core, the cable core comprises at least one wire group, and the wire group comprises a plurality of insulating single wires which are twisted together, and an aerogel insulating layer and an asbestos layer which are sequentially coated outside the insulating single wires; and the protective layer comprises a PET belt wrapping layer, a heat insulation layer, an asbestos layer, an aluminum sheath, an inner sheath, an asbestos layer, an armor layer and an outer sheath which are sequentially coated from inside to outside. According to the invention, the sheath outsidethe cable core is reasonable in structural design, guarantees the stability of signal transmission of the cable, enables a transmission signal not to be distorted and deformed, improves the safety and reliability of the cable, guarantees that the cable has excellent functions of temperature resistance, moisture resistance, compression resistance and animal bite prevention, and completely meets the requirements of a high-speed railway for the cable in any environment.

Description

technical field [0001] The invention belongs to the technical field of cables, in particular to a flame-retardant and high-temperature-resistant railway signal cable. Background technique [0002] With the continuous expansion of railways, cables are not only required to have general characteristics, but also to be adaptable to harsh environments such as natural disasters, such as fire. As the central nervous system of the railway, the railway signal cable is generally laid on the edge of the track along its track. In case of a sudden fire, the cable with poor flame retardant performance cannot meet the requirements of on-site disaster relief, and the self-extinguishing time is long. A good flame retardant High temperature resistant cables can support all trains in operation to arrive at the station safely in the event of a fire, ensuring the safety of people's property. Contents of the invention [0003] In view of this, the present invention aims to overcome the defects...

Claims

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Application Information

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IPC IPC(8): H01B7/29H01B7/295H01B7/17H01B7/18H01B7/28H01B7/02
CPCH01B7/02H01B7/17H01B7/18H01B7/28H01B7/29H01B7/295
Inventor 沈小平许加浩
Owner 江苏通鼎光电科技有限公司
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