CN2456271Y - Numeral singnal cables for railway - Google Patents

Numeral singnal cables for railway Download PDF

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Publication number
CN2456271Y
CN2456271Y CN 00268966 CN00268966U CN2456271Y CN 2456271 Y CN2456271 Y CN 2456271Y CN 00268966 CN00268966 CN 00268966 CN 00268966 U CN00268966 U CN 00268966U CN 2456271 Y CN2456271 Y CN 2456271Y
Authority
CN
China
Prior art keywords
layer
insulating
wire
railway
signal cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
CN 00268966
Other languages
Chinese (zh)
Inventor
梁斌
姜波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaozuo Railway Cable Co Ltd
Tianshui Railway Cable Co Ltd
Original Assignee
Tianshui Railway Cable Factory
Jiaozuo Railway Cable Factory
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
Application filed by Tianshui Railway Cable Factory, Jiaozuo Railway Cable Factory filed Critical Tianshui Railway Cable Factory
Priority to CN 00268966 priority Critical patent/CN2456271Y/en
Application granted granted Critical
Publication of CN2456271Y publication Critical patent/CN2456271Y/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33622355&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CN2456271(Y) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Abstract

The utility model relates to a numeral signal cable for railways, composed of an outer protective layer and an insulating wire group. Each of the insulating wires of the insulating wire group is composed of an insulating layer and a metal core wire, and the insulating layer of the insulating wire is composed of an outer cortical layer, a middle foaming layer and an inner cortical layer; the middle foaming layer has higher foaming degree, and thus the working capacity of the four wire groups made of the insulating wires is greatly reduced so as to reduce the attenuation constant of line transmission. The utility model can transmits analogue signals, digital signals, compatible signals and communication information.

Description

Railway digital signal cable
The utility model relates to a kind of railway signal transmission facilities, especially for the railway signal cable of transmission railway signal information.
Existing railway signal cable is to constitute by multi-form external protection with based on the four insulated wire groups of thoroughly doing away with the thread quad of edge; the insulated wire of its insulated wire group is to be made of polyethylene layer and metal core wire, and this signal cable is applicable to the control circuit of transmission railway signal, audio signal or automatic signalling.At present, owing to railway COMPUTER DETECTION, computer station interlocking, and railway numeral track circuit The Application of Technology, transmit above-mentioned railway communication information by railway signal cable and just necessitate.And existing railway signal cable can not be realized signal and the compatible purpose of communication information transmission because of not having the railway communication technical performance.
The purpose of this utility model provides a kind of railway digital signal cable, and it has railway signal and the compatible technical performance of communication information transmission, has overcome the deficiency that existing railway signal cable exists.
The utility model is achieved in that this railway digital signal cable is to constitute by external protection with based on the insulated wire group of quad; the insulated wire of insulated wire group is to be made of insulating barrier and metal core wire; the insulating barrier of insulated wire is a three-decker; ecto-entad is followed successively by exodermis; middle foaming layer; endodermis; foaming layer is the insulating barrier that adopts foaming technique to make with insulating material in the middle of it; in this insulating barrier, have many close and mutual disconnected foam holes; when this foaming layer has very high foam degrees; can make by the thread quad mutual capacitance of insulation and descend significantly; and circuit transmission attenuation constant is descended, thereby possesses the necessary technology performance of communications.
The utility model has the advantages that, but transmission of analogue signal and digital signal, compatible signal and communication information transmission.
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model insulated wire structure chart.
Fig. 2 is the 16 core digital signal cable structure charts that the utlity model has 16 insulated wires.
Fig. 3 is the 30 core digital signal cable structure charts that the utlity model has 30 insulated wires.
Fig. 4 is the 37 core digital signal cable structure charts that the utlity model has 37 insulated wires.
According to Fig. 1.The structure of the utility model insulated wire is followed successively by from outside to inside: by the insulating barrier that exodermis 1, middle foaming layer 2 and endodermis 3 are formed, copper core 4.Exodermis 1 is made by the high density polyethylene (HDPE) Insulation Material, and endodermis 3 is made by the linear polyethylene material.According to Fig. 2, the utility model overall structure ecto-entad is: by oversheath 5, armour 6, extrude the external protection that inner cushion layer 7, belting layer 8 are formed, and the star quad 9 of 4 groups of different colour codes, quad 9 is made up of 4 insulated wires.According to Fig. 3, the utility model overall structure ecto-entad is: oversheath 5, armour 6, extrude the external protection that inner cushion layer 7, the bonding sheath 10 of plastic-aluminum, belting layer 8 formed, the insulated single wire 11 of 9,2 different colour codes of star quad of 7 groups of different colour codes.According to Fig. 4; overall structure ecto-entad of the present utility model is: the external protection of being made up of oversheath 5, armour 6, wrapped inner cushion layer 12, aluminium sheath 13, thermal insulation layer 14, belting layer 8; the star quad 9 of 7 groups of different colour codes; 3 groups of different colour codes to line group 15; each is made up of 2 insulated wires the line group, the insulated single wire 11 of 3 different colour codes.

Claims (2)

1. a railway digital signal cable is made of external protection and insulated wire line group, and it is characterized in that: the insulating barrier of described insulated wire is a three-decker, and ecto-entad is followed successively by: exodermis (1), middle foaming layer (2) and endodermis (3).
2. railway digital signal cable according to claim 1 is characterized in that: in the insulating barrier three-decker of described insulated wire, exodermis (1) is to be made by the high density polyethylene (HDPE) Insulation Material, and endodermis (3) is to be made by the linear polyethylene Insulation Material.
CN 00268966 2000-12-31 2000-12-31 Numeral singnal cables for railway Ceased CN2456271Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00268966 CN2456271Y (en) 2000-12-31 2000-12-31 Numeral singnal cables for railway

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00268966 CN2456271Y (en) 2000-12-31 2000-12-31 Numeral singnal cables for railway

Publications (1)

Publication Number Publication Date
CN2456271Y true CN2456271Y (en) 2001-10-24

Family

ID=33622355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00268966 Ceased CN2456271Y (en) 2000-12-31 2000-12-31 Numeral singnal cables for railway

Country Status (1)

Country Link
CN (1) CN2456271Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101667472B (en) * 2008-09-03 2012-02-29 科络普线束技术(太仓)有限公司 Sheathed electric lead
CN105551633A (en) * 2016-03-07 2016-05-04 中天科技装备电缆有限公司 Vehicle communication network cable for rail transit vehicles and preparation method thereof
CN105895217A (en) * 2016-05-18 2016-08-24 安徽国华电缆集团有限公司 Industrial anti-attenuation corrosion-resistant shielded cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101667472B (en) * 2008-09-03 2012-02-29 科络普线束技术(太仓)有限公司 Sheathed electric lead
CN105551633A (en) * 2016-03-07 2016-05-04 中天科技装备电缆有限公司 Vehicle communication network cable for rail transit vehicles and preparation method thereof
CN105895217A (en) * 2016-05-18 2016-08-24 安徽国华电缆集团有限公司 Industrial anti-attenuation corrosion-resistant shielded cable

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
IW01 Full invalidation of patent right

Decision date of declaring invalidation: 20030917

Decision number of declaring invalidation: 5472

C35 Partial or whole invalidation of patent or utility model