Special cable for rail transit subway safety door power and signal transmission system and preparation method thereof

A signal transmission system and rail transit technology, applied in the field of wire and cable, can solve the problems of potential safety hazards, low reliability and low environmental performance, and achieve the effect of avoiding melt rupture, ensuring compactness and ensuring roundness.

Inactive Publication Date: 2017-08-18
WUXI MINGZHU CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of these cables still use ordinary power lines and control lines, but ordinary cables cannot meet the requirements of modern rail transit systems in terms of use characteristics, adaptability to the environment, safety and reliability, and environmental protection performance, often resulting in reliability. Low, high failure rate, low environmental performance and potential safety hazards

Method used

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  • Special cable for rail transit subway safety door power and signal transmission system and preparation method thereof

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Embodiment Construction

[0021] Such as figure 1 The special cable for the power and signal transmission system of the rail transit subway security door shown in the present invention includes a circular filling body 1 arranged at the center of the cable. Halogen-free filler core, a number of insulated wire cores 5 are arranged around the circular filler outside the circular filler body, the number of insulated wire cores is 2-37, and the thickness of the conductor 1 and the extruded outer conductor is 0.6-1.6 mm low-hardness soft halogen-free low-smoke polyolefin insulation layer 2, in which the conductor is twisted by multiple strands of tinned copper core soft conductors and added tensile fibers; the thickness of the direct extruded package outside the insulated wire core is 1.0- 3.0mm low hardness soft halogen-free low-smoke polyolefin sheath layer 4.

[0022] A method for preparing a special cable for the power and signal transmission system of a rail transit subway safety door, comprising the f...

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Abstract

The invention discloses a special cable for a rail transit subway safety door power and signal transmission system and a preparation method thereof. The cable comprises a circular filling body arranged in the center of the cable. A plurality of insulation wire cores are arranged around the circular filling body. A low hardness soft low smoke halogen-free polyolefin sheath layer with the thickness of 1.0 to 3.0mm is directly extruded outside the insulation wire core. The cable is a subway safety door special power and signal transmission cable designed for the features and application environment of a rail transit subway safety door, the cable has excellent electrical performance and stable and reliable transmission performance and has the performance of low smoke, no halogen, high flame retardancy, flexibility and easy bending, mouse bite prevention and ultraviolet aging resistance and has the advantages of comprehensive and powerful comprehensive environmental protection functions, a compact product structure, easy laying, and high practicality.

Description

technical field [0001] The invention relates to the technical field of electric wires and cables, in particular to a special cable for rail transit subway safety doors and a preparation method thereof, which are mainly used in power and signal transmission systems of urban rail transit subway safety doors as connection lines. Background technique [0002] The 21st century is a period of rapid development of my country's urban rail transit (including subways, ground light rails, and elevated light rails). Compared with other means of transportation, subways have the advantages of fast driving speed, large passenger transport volume, no floor space occupation, environmental protection and no exhaust emissions, etc. It is an effective way to solve the current urban traffic congestion and air pollution caused by exhaust emissions. With the rapid development of cities, the increasingly complex functions and the sharp increase in population, it is urgent to build a fast underground...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/04H01B7/18H01B7/28H01B7/295H01B3/44H01B13/00H01B13/02H01B13/14H01B13/24
CPCY02A30/14H01B7/0009H01B3/441H01B7/04H01B7/1825H01B7/1895H01B7/2806H01B7/295H01B13/00H01B13/02H01B13/14H01B13/148H01B13/24
Inventor 刘家朝
Owner WUXI MINGZHU CABLE
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