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A subway fire-proof signal cable and its manufacture process

A signal cable and subway technology, which is applied in the field of fireproof signal cables for subways and their production technology, can solve the problems of lack of fire resistance, the inability to integrate signal cables and control cables, etc. Into the inside of the cable, the effect of excellent axial waterproof performance

Pending Publication Date: 2018-12-18
上海朗达电缆(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an improved fire-resistant signal cable for subway and its manufacturing process, which can overcome the shortcomings of the prior art that the signal cable and the control cable cannot be integrated and do not have fire-proof performance

Method used

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  • A subway fire-proof signal cable and its manufacture process
  • A subway fire-proof signal cable and its manufacture process

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Embodiment Construction

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] The invention provides a fireproof signal cable for subway, see for details figure 1 , the difference from the prior art is that the signal cable includes a cable core located in the middle and a cable sheath wrapped outside the cable core, and the cable core is divided into a signal cable unit 1 located at the center and a row arrangement The control cable core 2 around the signal cable unit; the outer sheath of the cable includes a tape layer 3 , a refractory layer 4 , an armor layer 5 and a sheath la...

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Abstract

The invention relates to a fire-proof signal cable for metro, comprising a cable core arranged in the middle and a cable outer protective layer wrapped outside the cable core. The cable core is divided into a signal cable unit arranged at the center and a control cable core arranged around the signal cable unit. The outer protective layer of the cable comprises a cladding layer, a refractory layer, an armor layer and a sheath layer which are wrapped in turn. When in use, the fireproof signal cable of the invention can reduce construction, has excellent fireproof function, the fire grade can reach the A standard of GB12666.6, has good heat insulation and waterproof performance, and ensures the safe operation of the subway signal system.

Description

technical field [0001] The invention relates to the technical field of signal cables, in particular to a fireproof signal cable for subways and its manufacturing process. Background technique [0002] With the advancement of urban development, the high-speed subway has brought great convenience to people's travel. Since the subway operation section is the place with the most dense flow of people, the various signal systems in the subway play a key role in the operation of the subway. effect. [0003] Among them, the safe power supply of the signal system can ensure the effectiveness of signal control. Therefore, the subway puts forward requirements on the safety performance of the cable in the case of fire, and requires that the cable can still maintain normal power supply for a period of time in the case of flames, so as to facilitate escape and rescue. [0004] The existing signal cables cannot be combined with the signal cable and the control cable. The signal cable and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/282H01B7/29H01B11/00H01B13/00
CPCH01B7/0216H01B7/0225H01B7/0258H01B7/0283H01B7/2825H01B7/29H01B7/292H01B11/00H01B13/00Y02A30/00
Inventor 王浩淼王成忠刘源
Owner 上海朗达电缆(集团)有限公司
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