CN201689732U - High-shielding performance five-core cable - Google Patents
High-shielding performance five-core cable Download PDFInfo
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- CN201689732U CN201689732U CN2010201573332U CN201020157333U CN201689732U CN 201689732 U CN201689732 U CN 201689732U CN 2010201573332 U CN2010201573332 U CN 2010201573332U CN 201020157333 U CN201020157333 U CN 201020157333U CN 201689732 U CN201689732 U CN 201689732U
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Abstract
The utility model discloses a high-shielding performance five-core cable, which comprises a cable core, wherein the cable core comprises a group of power wire core conductors, a wire core insulation layer is covered at the outer side of each conductor, and a filling layer, a bonding layer, an inner lining layer, a neutral wire core conductor, an isolation layer, a ground wire core conductor and an outer protective sleeve are sequentially arranged outside the cable core. The high-shielding performance five-core cable of the utility model has the following advantages that firstly, the magnetic field generated around current can be shielded in the cable, the interference generated to the outside can be prevented, and the sensitivity of a head end protection device during single-phase short circuit is improved; secondly, overvoltage generated by electromagnetic effect of strong and heavy thunder and lightning current can be eliminated, and the damage or the puncture of the insulation layers can be prevented; and thirdly, certain grounding production effect can be realized, leaked current can flow into a grounding network along the shielding layer when the inside of the cable core wires is damaged, and the safety protection effect can be realized.
Description
Technical field
The utility model discloses a kind of five-core cable that can improve shield effectiveness, particularly a kind of high shielding five-core cable that is applicable to electric power transfer, anti-electromagnetic interference, homogenizing electric field.
Background technology
Power cable is transmission or distribute the cable of high-power electric energy in the electric power system engineering, does not have the concentric type conductor usually during the lv power cable product structure design.Owing to fail to distinguish well the concrete condition and the field of employment of engineering, in three-phase one zero one ground systems, use this cable bring the problem of many deficiencies can for engineering design, transmission and distribution network operation in the transmission and distribution circuit, mainly have following four shortcomings: 1, interference free performance is poor: when containing higher harmonic components in the electric current that cable itself is carried, cable can produce electromagnetic interference to the electronic equipment around it; Otherwise extraneous electromagnetic interference also can be coupled on the cable core, to the various electric generation electromagnetic interference of joining with cable.2, zero short-circuit impedance is big mutually: circuit single-phase short circuit current value is reduced, influence the sensitivity of head end protective device when single-phase short circuit.3,, because of unshielded layer, under the galvanomagnetic effect effect of powerful lightning current, produce overvoltage unavoidably, and cause the damage of insulating barrier or breakdown along the cable that lays in the skyscraper.The skewness of electric field caused line loss when 4, cable moved.
Because this body structure of lv power cable existing problems, and then various interference that caused and harm problem are increasingly sophisticated and serious.In the cable type selecting of power station, power plant, skyscraper, tunnel, subway, computer room and operation are laid, have to problem is paid attention to, seem even more important and suitable and have the novel five-core cable of this kind of shielding properties.
The utility model content
The utility model purpose: technical problem to be solved in the utility model is at the deficiencies in the prior art, and a kind of high shielding five-core cable is provided.
Technical scheme: the utility model discloses a kind of high shielding five-core cable, comprise cable core, described cable core comprises one group of power line core conductor, the every conductor outside is coated with the core insulating barrier, and described cable core is provided with packed layer outward successively, tightens layer, inner covering, neutral line core conductor, separator, ground wire core conductor and oversheath.
In the utility model, preferably, described neutral line core conductor is dredged around the described inner covering outside.Described neutral line core conductor changes to the outer concentric type structure of cable core by becoming cable structure with the power core.Neutral core effect can be played, shielding action can be played again.
In the utility model, preferably, described ground wire core conductor is dredged around the described separator outside.Described ground wire core conductor changes to the outer concentric type structure of cable core by becoming cable structure with the power core.Can play ground core effect, cable is played the secondary shield effect.
Beneficial effect: a kind of high shielding five-core cable described in the utility model has the following advantages: the one, can produce magnetic field shielding in cable with around the electric current, and prevent from externally to produce to disturb, improve the sensitivity of head end protective device when single-phase short circuit; The 2nd, the galvanomagnetic effect that can eliminate powerful lightning current produces overvoltage, can prevent the damage or the puncture of insulating barrier; The 3rd, can play certain ground protection effect, if breakage takes place in the cable core, the electric current that leaks can flow into ground network along screen, play the effect of safeguard protection.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is done further to specify, above-mentioned and/or otherwise advantage of the present utility model will become apparent.
Be illustrated as the utility model structural representation.
Embodiment:
As shown in the figure, the utility model discloses a kind of high shielding five-core cable, comprise cable core, described cable core comprises three power line core conductors 1, and the every conductor outside is coated with the core insulating barrier, described cable core is provided with packed layer 3 outward successively, tighten layer 4, inner covering 5, neutral line core conductor 6, separator 7, ground wire core conductor 8 and oversheath 9.Described neutral line core conductor 6 is dredged around described inner covering 5 outsides, thereby constitutes four-core.Described ground wire core conductor 8 is dredged around described separator 7 outsides, thereby constitutes the 5th core.Described neutral line core conductor 6 and ground wire core conductor 8 connect earth mat respectively, if breakage takes place in the cable core, the electric current that leaks can flow into ground network along screen, play the effect of safeguard protection.
The utility model provides a kind of thinking and method of high shielding five-core cable; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.The all available prior art of each part not clear and definite in the present embodiment is realized.
Claims (3)
1. one kind high shielding five-core cable, comprise cable core, described cable core comprises one group of power line core conductor (1), and the every conductor outside is coated with the core insulating barrier, it is characterized in that, described cable core is provided with packed layer (3) outward successively, tighten layer (4), inner covering (5), neutral line core conductor (6), separator (7), ground wire core conductor (8) and oversheath (9).
2. a kind of high shielding five-core cable according to claim 1 is characterized in that, described neutral line core conductor (6) is dredged around described inner covering (5) outside.
3. a kind of high shielding five-core cable according to claim 1 is characterized in that, described ground wire core conductor (8) is dredged around described separator (7) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201573332U CN201689732U (en) | 2010-04-12 | 2010-04-12 | High-shielding performance five-core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201573332U CN201689732U (en) | 2010-04-12 | 2010-04-12 | High-shielding performance five-core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689732U true CN201689732U (en) | 2010-12-29 |
Family
ID=43378012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201573332U Expired - Fee Related CN201689732U (en) | 2010-04-12 | 2010-04-12 | High-shielding performance five-core cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689732U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347111A (en) * | 2011-06-24 | 2012-02-08 | 四川明星电缆股份有限公司 | Method for manufacturing enhanced flat cable for wagon dumper |
| CN102969070A (en) * | 2012-12-13 | 2013-03-13 | 山东昆嵛电缆有限公司 | Five-core power cable with double-shielding function |
| CN103943186A (en) * | 2014-03-17 | 2014-07-23 | 安徽红旗电缆集团有限公司 | Multi-conductor armored flexible cable for aviation |
| CN107643435A (en) * | 2017-10-31 | 2018-01-30 | 现代重工(中国)电气有限公司 | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it |
-
2010
- 2010-04-12 CN CN2010201573332U patent/CN201689732U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347111A (en) * | 2011-06-24 | 2012-02-08 | 四川明星电缆股份有限公司 | Method for manufacturing enhanced flat cable for wagon dumper |
| CN102969070A (en) * | 2012-12-13 | 2013-03-13 | 山东昆嵛电缆有限公司 | Five-core power cable with double-shielding function |
| CN103943186A (en) * | 2014-03-17 | 2014-07-23 | 安徽红旗电缆集团有限公司 | Multi-conductor armored flexible cable for aviation |
| CN107643435A (en) * | 2017-10-31 | 2018-01-30 | 现代重工(中国)电气有限公司 | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENHUAN CABLE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUXI HUANCABLE CO., LTD. Effective date: 20120405 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120405 Address after: 214251 Wuxi city on the north side of Yixing City Guan Lin Zhen Jin Xinyi Road (Hindu Lucy) Patentee after: Shenhuan Cable Technology Co.,Ltd. Address before: 214251 Jiangsu Province, Yixing Guanlin Town Road No. 6 East Patentee before: Wuxi Hu'an Electronic Wire and Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20170412 |