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DC power and control composite cable for rail transit

A composite cable and rail transit technology, applied in the direction of insulated cables, cables, circuits, etc., can solve the problems of troublesome installation and maintenance of power cables and control cables, narrow space for cable laying, electromagnetic interference, etc., and is beneficial to installation and maintenance , Reduce the laying space, and the effect of large carrying capacity

Active Publication Date: 2018-03-20
武汉宏联电线电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the distance between the power cable and the control cable is too close to easily cause electromagnetic interference, the existing power cables and control cables for rail transit are laid separately
Since urban rail transit is mostly underground and the space for laying cables is narrow, separate power cables and control cables will take up a large space, resulting in troublesome installation and maintenance of power cables and control cables

Method used

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  • DC power and control composite cable for rail transit

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] see figure 1 As shown, the embodiment of the present invention provides a DC power and control composite cable for rail transit, the composite cable includes a first filling layer 3, the first filling layer 3 is located in the middle of the composite cable, and the outside of the first filling layer 3 is sequentially Coated with a first fire barrier layer 4, a shielding layer 5, an oxygen barrier layer 6, an armor layer 7, and an outer sheath layer 8;

[0024] The first filling layer 3 is provided with a power cable core 1 and at least one control cable core 2. The power cable core 1 and all control cable cores 2 are parallel to each other along the axial direction, and the control cable cores 2 are arranged around the power cable core. 1; specifically, the control cable core 2 is evenly wound around the power cable core 1. e...

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Abstract

The invention discloses a direct-current power and control composite cable for rail transit, and relates to the field of cables. The composite cable comprises a power cable core and at least one control cable core, and the control cable cores are arrayed outside the power cable core in a surrounding mode; the power cable core comprises a first conductor formed by multiple stranded copper wires, wherein the first conductor is wrapped by a first insulating layer; each control cable core comprises two control core wires stranded in pairs, and each control core wire comprises a second conductor formed by stranding multiple copper wires, wherein the second conductor is wrapped by a second insulating layer. The power cable and the control cables are effectively combined, laying investment and material production cost are reduced, and laying space is reduced; the power cable and the control cables do not disturb each other, and safety of system operation is ensured; the composite cable has the advantages of being fireproof, large in carrying capacity, resistant to impact voltage and mechanical damage, free of halogen or toxicity, anti-explosion, waterproof, resistant to corrosion, long in service life, safe, structurally flexible and resistant to mechanical vibration, overloads and high temperature.

Description

technical field [0001] The invention relates to the field of cables, in particular to a DC power and control composite cable for rail transit. Background technique [0002] The urban rail transit system uses direct current as the power, and uses various automation equipment with electronic computer processing technology as the core to maintain the normal operation of the vehicle. Automation equipment includes train automatic control system, power supply system management automation system, environmental monitoring system, fire alarm system, etc. These systems each form a network, and a central computer is installed in the control center of the rail transit system to achieve unified command and hierarchical control. [0003] With the rapid development of my country's urban rail transit industry, the demand for rail transit cables is also increasing. In order to ensure the transmission of power supply and control signals, both power cables and control cables are required in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B7/00H01B7/17H01B7/18H01B7/28H01B7/282H01B7/29H01B7/295
CPCH01B7/0045H01B7/17H01B7/18H01B7/1895H01B7/28H01B7/2806H01B7/2825H01B7/29H01B7/295
Inventor 樊玉广章国榜吴大勇施晓宝
Owner 武汉宏联电线电缆有限公司
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