CN101221838A - Railway signal flexible cable - Google Patents
Railway signal flexible cable Download PDFInfo
- Publication number
- CN101221838A CN101221838A CNA2007100364737A CN200710036473A CN101221838A CN 101221838 A CN101221838 A CN 101221838A CN A2007100364737 A CNA2007100364737 A CN A2007100364737A CN 200710036473 A CN200710036473 A CN 200710036473A CN 101221838 A CN101221838 A CN 101221838A
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- CN
- China
- Prior art keywords
- cable
- cable core
- railway signal
- belting layer
- layer
- 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.)
- Pending
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Abstract
The invention provides a railway signal flexible cable, comprising a cable core, a cable core belting layer and an outside sheath, wherein, each wire of a four-wire conductor set inside the cable core consists of a plurality of tinned copper wires and a wrapped insulating layer, the belting layer of the four-wire conductor set is wrapped by a shielding layer woven by the tinned copper wires, a protective layer woven by an aluminium-magnesium alloy wire is arranged between the cable core belting layer and the outside sheath. The railway signal flexible cable has good shielding property and good scratchability as well as convenient construction and maintenance, can realize that the same signals are transmitted in the same cable, is easy to bend, and reduces the weight of the cable under the precondition of guaranteeing the cable intensity.
Description
Technical field
The present invention relates to a kind of telecommunication cable, especially railway signal flexible cable.
Background technology
The lead of four line conductor groups in the cable core of existing railway signal cable is single core copper conductor, and pliability is not enough; Provided with shielding layer not outside four line conductor groups, homogenous frequency signal can not transmit with cable; The outer overcoat of cable core adopts two steel bands wrapped, causes the weight of cable and external diameter to increase, and makes the bending property of cable descend construction, maintenance activity inconvenience.
Summary of the invention
In order to overcome the deficiency of existing railway signal cable, the invention provides a kind of railway signal flexible cable, it has, and shielding properties is excellent, pliability good, flexible, and weight is lighter relatively, construction, characteristics such as easy to maintenance.
Railway signal flexible cable provided by the invention comprises cable core and cable core belting layer, oversheath, be provided with four line conductor groups of several outsourcing belting layers in the cable core, every lead of four line conductor groups is made of multiply tinned copper wire and outsourcing insulation, the outer screen that is formed by the tinned copper wire braiding that coats of the belting layer of four line conductor groups is provided with the overcoat by the aluminum-magnesium alloy wire braiding between cable core belting layer and oversheath.
The invention has the beneficial effects as follows: advantages of good shielding performance has good anti-electromagnetic interference performance, and can realize that homogenous frequency signal transmits with cable; Pliability is good, flexible, has alleviated the weight of cable under the prerequisite that guarantees cable intensity, and it is comparatively convenient to construct, keep in repair.
Description of drawings
Fig. 1 is a cross sectional representation of the present invention.
In Fig. 1, the 1. lead of outsourcing insulation, 2. four line conductor groups, the 3. belting layer of four line conductor groups, 4. screen, 5. cable core belting layer, 6. overcoat, 7. oversheath, 8. cable core.
Embodiment
In Fig. 1, every lead (1) in the four line conductor groups (2) of the present invention adopts the stranded back outsourcing insulation that forms of multiply tinned copper wire, lead (1) external application polyester belt at four outsourcing insulations coats belting layer (3), coat screen (4) again, promptly make four line conductor groups (2) with the tinned copper wire braiding.Stranded cable core (8) back of making of several four lines conductor groups (2) is coated belting layer (5), coat overcoat (6) again, outside overcoat (6), coat oversheath (7) again and promptly make the present invention with the aluminum-magnesium alloy wire braiding.
Claims (1)
1. railway signal flexible cable, comprise cable core and cable core belting layer, oversheath, be provided with four line conductor groups of several outsourcing belting layers in the cable core, the every lead that it is characterized in that four line conductor groups is made of multiply tinned copper wire and outsourcing insulation, the outer screen that is formed by the tinned copper wire braiding that coats of the belting layer of four line conductor groups is provided with the overcoat by the aluminum-magnesium alloy wire braiding between cable core belting layer and oversheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100364737A CN101221838A (en) | 2007-01-13 | 2007-01-13 | Railway signal flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100364737A CN101221838A (en) | 2007-01-13 | 2007-01-13 | Railway signal flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101221838A true CN101221838A (en) | 2008-07-16 |
Family
ID=39631591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100364737A Pending CN101221838A (en) | 2007-01-13 | 2007-01-13 | Railway signal flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101221838A (en) |
-
2007
- 2007-01-13 CN CNA2007100364737A patent/CN101221838A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081212 Address after: Postcode of seven Town Industrial Zone, Wujiang, Jiangsu Province, China: 215234 Applicant after: Jiangsu Hengtong Wire And Cable Technology Co., Ltd. Address before: Postcode of seven Town Industrial Zone, Wujiang, Jiangsu Province, China: 215234 Applicant before: WUJIANG PHOTOELECTRIC COMMUNICATION WIRE & CABLE GENERAL FACTORY |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HENGTONG CABLE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUJIANG CITY OPTO-ELECTRICAL CABLE COMMUNICATION GENERAL FACTORY Effective date: 20081212 |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080716 |