CN2716978Y - Integrated guiding communication control cable - Google Patents
Integrated guiding communication control cable Download PDFInfo
- Publication number
- CN2716978Y CN2716978Y CN 200420033940 CN200420033940U CN2716978Y CN 2716978 Y CN2716978 Y CN 2716978Y CN 200420033940 CN200420033940 CN 200420033940 CN 200420033940 U CN200420033940 U CN 200420033940U CN 2716978 Y CN2716978 Y CN 2716978Y
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- China
- Prior art keywords
- cable
- pair twist
- core
- cable core
- communication
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- Expired - Fee Related
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Abstract
The utility model discloses an integrated guiding communication control cable, comprising a cable core, a cushion layer and a jacket wrapping the cushion layer. The cable core comprises at least two cores. The utility model is characterized in that a shielding layer provided with a flow guiding earth connection wire is equipped between the cable core and the cushion layer; every two cores of the cable core are in pair twist, and the length of lay is shorter than 150 mm; every pair of twisted cores are equipped with an extrusion molding harness outside, and a plurality of pair twist groups are formed; the length of lay of each pair twist group is different, and each section of each pair twist group is uniform in the length of lay. The utility model has advantages of an effective cable shield with powerful capacity of anti-exterior electromagnetic interference; small electromagnetic interference between each pair twist groups inside the cable and also between sections within the same pair twist group. With adoption of the cable, communication and controlling quality of the electrified wire netting is better improved, and the utility model is in particular suitable to situation that the power cable and the communication controlling cable are laid in one ditch.
Description
Technical field
The utility model relates to cable, specifically, is the comprehensive guiding Control on Communication cable that a kind of shielding properties is fine and the internal electromagnetic induction is very little.Be specially adapted to urban distribution network power cable and the laying in one ditch of Control on Communication cable.
Background technology
Along with China's urban construction fast development, built on stilts urban distribution network and the communication network that lays of open-wire line not only has a strong impact on city look and feel, is repugnant to the eye, and causes electric shock accidents and traffic accident easily.At present, supply network is transformed in the city, various places one after another, adopt cable underground laying mode, but the economy that is limited to avenue characteristics and engineering, normally laying in one ditch of the Control on Communication cable of the power cable of urban distribution network and electrical network (cable that promptly is used for electrical network intercommunication and control, relaying protection), electromagnetic interference each other is very serious; Especially; urban distribution network 110kv and above power cable get more and more; so high line voltage can produce very high induced potential on the Control on Communication cable; not only the dielectric strength to the Control on Communication cable has proposed very high requirement, the more important thing is, strong induced potential serious interfere with communications signal of meeting and relaying protection control signal; make the communication system of power grids not smooth; Control Failure, the safety that jeopardizes electrical network, thereby the performance of Control on Communication cable shield outside electromagnetic interference also must be very high.But; China does not also meet the private communication control cable of this requirement at present; the relevant criterion that does not also have unification of the motherland; the general wire armoring control cable that adopts substitutes in the actual engineering; utilize its armour to play shielding action; but the design feature of the armour of control cable focuses on the mechanical strength that improves cable; when being subjected to external impacts, play the protection cable; and do not consider its electric property; the anti-electromagnetic interference capability of armoured control cable is poor; shield effectiveness is not fine, can not satisfy the specification requirement of industry far away.
In addition, the cable core structure of wire armoring control cable is an ordinary construction, each core that is cable core is arranged in parallel, during use, the couple of conductor that constitutes a certain communication or control signal loop can be used any two cores, between inner each core of cable, between same each section of core electromagnetic induction is arranged also, the phase mutual interference also can influence communication, control of quality.
Therefore, suddenly wait to develop the private communication control cable that shielding properties is better and the internal electromagnetic interference is littler.
The utility model content
The technical problems to be solved in the utility model provides the private communication control cable that a kind of shielding properties is fine and the internal electromagnetic interference is little.Technological means mainly comprises two aspects: the one, the screen of special construction is set, and this screen has the very high ability of resisting outside electromagnetic interference; The 2nd, the arrangement architecture of change core is to reduce the phase mutual interference between inner each core of cable, between same each section of core.
Technical solution of the present utility model is: a kind of comprehensive guiding Control on Communication cable, comprise cable core, be located at the outer bed course of cable core, be enclosed within the outer sheath of bed course, described cable core comprises at least two cores, and the insulating barrier on conductor constitutes core with wrapping up in again by conductor; It is characterized in that: between cable core and bed course, also be provided with screen, screen has the water conservancy diversion earth connection.
Described screen is a metal screen layer; Also metal, metallo-plastic composite shielding layer, the metal covering of composite shielding layer is inside, and channelizing line ground connection is located on the metal covering.
Per two pair twists of the core of described cable core, twisting pitch constitutes some pair twist groups less than 150mm, the stranded formation cable core of all pair twist groups; The twisting pitch difference of each pair twist group, the twisting pitch of each section of each pair twist group self is even.
Also can establish the armour that has the water conservancy diversion earth connection between described bed course, the sheath, this armour is the wire armoring layer preferably.
The beneficial effects of the utility model are: when the highfield of power cable acts on the Control on Communication cable, on the Control on Communication cable, produce induced potential, owing to be provided with the screen that has the water conservancy diversion earth connection, form short circuit current, and by water conservancy diversion earth connection guiding feeding the earth, the cable core of Control on Communication cable can not produce induced potential, thereby has avoided the interference of power cable electric field to communication, control signal effectively.Simultaneously, because the core of cable core is the twisted wire of per two pair twists, and twisting pitch is less than 150mm, and the twisting pitch of each pair twist group is all inequality, the twisting pitch of each section of each pair twist group self is even, fixing, and a pair twist group is used in each communication or control signal loop.Like this, between inner each the pair twist group of cable, the electromagnetic interference between same each section of pair twist group is little, the distortion of communication, control signal is little.In addition, if adopt armouring Control on Communication cable, be equivalent to have the twice screen, because its armour is provided with the water conservancy diversion earth connection, shield effectiveness is better than common armour, and the ability that the Control on Communication cable is resisted external electromagnetic interference is stronger.
Above technique effect can increase substantially communication, control of quality, uses this cable can satisfy the specification requirement of industry.In addition, because advantages of good shielding performance also can reduce the requirement to dielectric strength, reduce cable cost.
The armoured cable that has seven pair twist groups with cable core is an example below, describes the utility model in detail.
Description of drawings
Fig. 1 is the cross section structure figure of this comprehensive guiding Control on Communication cable.
Fig. 2 is the twisting pitch schematic diagram of this comprehensive guiding Control on Communication cable pair twist group.
Embodiment
Referring to Fig. 1, Fig. 2: this comprehensive guiding Control on Communication cable comprises cable core, screen 4, bed course 5, armour 6, sheath 7 that order is from inside to outside successively arranged.
Comprise seven pair twist groups in the cable core, it is stranded mutually that each pair twist group is thoroughly done away with the edge core by two.Every eradication edge core is wrapped up in again by plain conductor 1 and extrusion molding and is formed at the insulating barrier 2 on lead 1 surface.
When processing pair twist group, accomplish following some:
One. the twisting pitch L of all pair twist groups should be less than 150mm.
Two. the twisting pitch L of each pair twist group can not be identical.
Three. even before and after the twisting pitch L palpus of each section of each pair twist group self.
Like this, between inner each the pair twist group of cable, the electromagnetic interference between same each section of pair twist group is just very little, under the situation of not considering external disturbance, the cable height that communication, control of quality also are arranged in parallel than core.
Be provided with screen 4 outside cable core, this screen 4 is wrapped or vertical wrapping on the cable core with aluminium strip, before the alclad band, longitudinally put a copper wire 3 earlier on the cable core surface, during the alclad band, the aluminium strip inner surface promptly fits tightly with copper wire 3 and contacts, and copper wire 3 is drawn ground connection at the two ends of cable.Like this, when cable is subjected to external electromagnetic interference, produce induced potential on the aluminium strip, form short circuit current, fed the earth by copper wire 3 guidings, thereby cable core is played the shielding protection effect, communication, control signal can not be subjected to the interference of external electromagnetic signal.
Screen 4 also can use aluminium-plastic tape, but should make it to contact with copper wire 3 with aluminum metal towards interior when wrapped, just can play guide functions.
Armour 6 can be the steel-tape armouring layer, also wire armoring layer.The structure of steel-tape armouring layer and screen 4 are similar, longitudinally put a copper wire on bed course 5 surfaces earlier, and when Baogang was with, the steel band inner surface promptly fitted tightly with copper wire and contacts, and copper wire is drawn ground connection at the two ends of cable.The structure of wire armoring layer is simpler, need only mix one or a few copper wire when being wrapped steel wire, is clipped among the steel wire, and being wrapped together gets final product, and copper wire is drawn ground connection at the two ends of cable.This armoured cable has the twice screen, and the ability of resisting external electromagnetic interference is more excellent.
Claims (7)
1. comprehensively guide the Control on Communication cable for one kind, comprise cable core, be located at the outer bed course of cable core, be enclosed within the outer sheath of bed course, described cable core comprises at least two cores, insulating barrier on conductor constitutes core with wrapping up in again by conductor, it is characterized in that: also be provided with screen between cable core and bed course, screen has the water conservancy diversion earth connection.
2. comprehensive guiding Control on Communication cable according to claim 1, it is characterized in that: described screen is a metal screen layer.
3. comprehensive guiding Control on Communication cable according to claim 1, it is characterized in that: described screen is metal, nonmetal composite shielding layer, and the metal covering of composite shielding layer is inside, and channelizing line ground connection is located on the metal covering.
4. comprehensive guiding Control on Communication cable according to claim 1 is characterized in that: per two pair twists of the core of described cable core, twisting pitch constitutes some pair twist groups less than 150mm, the stranded formation cable core of all pair twist groups.
5. comprehensive guiding Control on Communication cable according to claim 4 is characterized in that: the twisting pitch difference of each pair twist group, the twisting pitch of each section of each pair twist group self is even.
6. comprehensive guiding Control on Communication cable according to claim 1 is characterized in that: establish the armour that has the water conservancy diversion earth connection between described bed course, the sheath.
7. comprehensive guiding Control on Communication cable according to claim 6, it is characterized in that: described armour is the wire armoring layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033940 CN2716978Y (en) | 2004-06-10 | 2004-06-10 | Integrated guiding communication control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420033940 CN2716978Y (en) | 2004-06-10 | 2004-06-10 | Integrated guiding communication control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2716978Y true CN2716978Y (en) | 2005-08-10 |
Family
ID=34871380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420033940 Expired - Fee Related CN2716978Y (en) | 2004-06-10 | 2004-06-10 | Integrated guiding communication control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2716978Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887784A (en) * | 2010-07-01 | 2010-11-17 | 江苏宇航特种线缆有限公司 | Manufacture method of high speed differential cable |
| CN103871651A (en) * | 2014-03-01 | 2014-06-18 | 安徽华源电缆集团有限公司 | Grounding control flexible cable for power generation |
| CN103928102A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Fire-resistant and flame-retardant flexible computer cable |
| CN104867580A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Marine shielded-insulated cable with current-guiding wire |
| CN106531301A (en) * | 2016-12-27 | 2017-03-22 | 乐星红旗电缆（湖北）有限公司 | Communication monitoring cable |
| CN109215879A (en) * | 2018-09-05 | 2019-01-15 | 浙江兆龙互连科技股份有限公司 | A kind of shielded cable promoting data line transmission bandwidth rope laying techniques |
-
2004
- 2004-06-10 CN CN 200420033940 patent/CN2716978Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887784A (en) * | 2010-07-01 | 2010-11-17 | 江苏宇航特种线缆有限公司 | Manufacture method of high speed differential cable |
| CN104867580A (en) * | 2014-02-26 | 2015-08-26 | 安徽红旗电缆集团有限公司 | Marine shielded-insulated cable with current-guiding wire |
| CN103871651A (en) * | 2014-03-01 | 2014-06-18 | 安徽华源电缆集团有限公司 | Grounding control flexible cable for power generation |
| CN103928102A (en) * | 2014-03-27 | 2014-07-16 | 安徽长风电缆集团有限公司 | Fire-resistant and flame-retardant flexible computer cable |
| CN106531301A (en) * | 2016-12-27 | 2017-03-22 | 乐星红旗电缆（湖北）有限公司 | Communication monitoring cable |
| CN106531301B (en) * | 2016-12-27 | 2017-11-21 | 乐星红旗电缆（湖北）有限公司 | One kind communication, monitoring cable |
| CN109215879A (en) * | 2018-09-05 | 2019-01-15 | 浙江兆龙互连科技股份有限公司 | A kind of shielded cable promoting data line transmission bandwidth rope laying techniques |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |