CN201681655U - Multipurpose ultrahigh-pressure DC shielded cable - Google Patents
Multipurpose ultrahigh-pressure DC shielded cable Download PDFInfo
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- CN201681655U CN201681655U CN2010201363762U CN201020136376U CN201681655U CN 201681655 U CN201681655 U CN 201681655U CN 2010201363762 U CN2010201363762 U CN 2010201363762U CN 201020136376 U CN201020136376 U CN 201020136376U CN 201681655 U CN201681655 U CN 201681655U
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Abstract
The utility model discloses a multipurpose ultrahigh-pressure DC shielded cable, which comprises a conductor for transmitting current, wherein an electric field shielding layer is arranged outside the conductor; the electric field shielding layer includes conductor shield, crosslinking ethylene insulation and insulation non-metal conducting layer shield sequentially from inside to outside; tinned copper wire braid shield is arranged outside the electric field shielding layer; copper strip shield is coated outside the tinned copper wire braid shield; and a belting layer and an outer jacket are sequentially coated outside the copper strip shield. The multipurpose ultrahigh-pressure DC shielded cable has the benefits that the cable can be started fast in the operational process after the cable is used; the high voltage and the small loss can be formed in a short time; and the grounding is reliable, so as not to generate the disturbing magnetic field to the surrounding environment. Therefore, the multipurpose ultrahigh-pressure DC shielded cable is applicable to various special occasions with high voltage and direct current, such as the large-sized sports places, the electrostatic precipitation in a coal piling field, the X-ray machine, the electron beam processing, the electron gun of the electron bombardment furnace, the electrostatic painting and the like.
Description
Technical field
The utility model relates to a kind of cable, is specially a kind of multipurpose superhigh voltage DC shielded type cable, belongs to the electric wire field.
Background technology
Because electricity needs is growing at present, the high voltage large capcity transmission line constantly increases, and ac transmission is subjected to carrying out synchronously the restriction of stability; Ac cable startup under certain condition is slow, loss is big, and is single to forming electromagnetic field and the purposes disturbed on every side easily.
Summary of the invention
The purpose of this utility model provides a kind of multipurpose superhigh voltage DC shielded type cable, to solve the problems referred to above of prior art.
The purpose of this utility model can be achieved through the following technical solutions.
Multipurpose superhigh voltage DC shielded type cable comprises the conductor of transmission current, and described conductor is outside equipped with the electric field shielding layer, and described electric field shielding layer is followed successively by outward by the lining: conductor screen, cross-linked ethylene insulation and the shielding of insulated non-metal semi-conductive layer; Be outside equipped with the tinned copper wire braid shielded at the electric field shielding layer, the tinned copper wire braid shielded is coated with the copper strips shielding, outer belting layer and the oversheath of being coated with successively of copper strips shielding.
At first for the electric field of the insulated outer surface of balanced conductive line surfaces, and be provided with the electric field shielding structure, be conductor screen, crosslinked polyetylene insulated and insulated non-metal semi-conductive layer shielding, in the space between assurance lead and insulation, or partial discharge can not take place in the space in the structural member of insulated outer surface and insulated non-metal semi-conductive layer; Secondly outside nonmetal semi-conductive layer, adopt tinned copper wire, not only double as electric field shielding but also in case the usefulness by back flow current when being short-circuited as braid; Zinc-plated in addition braid also can be used as anti-external electromagnetic wave interference or prevents that the high frequency of cable itself from producing interference to external world; Not only can be used as outside the shield effectiveness of superhigh pressure as tinned copper wire braid shielded and copper strips shielding once more, can also be the double as cable and earth connection equipment, when cable in use, when insulation breakdown or line short having occurred, metallic shield can import electric current underground, to protect the safety of the person and equipment; This cable uses direct voltage 150kV.
The beneficial effects of the utility model are: cable starts in running soon after using this cable, can form high pressure in the short time, loss is little, and ground connection is reliable, surrounding environment is not produced disturbing magnetic field.The multiple special occasions that is applicable to high voltage direct current uses down, as: the electrostatic precipitation of colosseum institute, coal piling field, x X-ray machine X, electron beam processing, electron bombardment furnace electron gun, electrostatic painting etc.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: the 1-conductor; The 2-conductor screen; 3-is crosslinked polyetylene insulated; The shielding of 4-insulated non-metal semi-conductive layer; 5-tinned copper wire braid shielded; The shielding of 6-copper strips; The 7-belting layer; The 8-oversheath.
Embodiment
Further set forth design feature of the present utility model below in conjunction with accompanying drawing and specific embodiment.
Multipurpose superhigh voltage DC shielded type cable as shown in Figure 1, the conductor 1 that comprises transmission current, described conductor 1 is outside equipped with the electric field shielding layer, and described electric field shielding layer is followed successively by outward by the lining: conductor screen 2, cross-linked ethylene insulation 3 and insulated non-metal semi-conductive layer shielding 4; Be outside equipped with tinned copper wire braid shielded 5 at the electric field shielding layer, tinned copper wire braid shielded 5 is coated with copper strips shielding 6, copper strips shielding 6 outer belting layer 7 and the oversheaths 8 of being coated with successively.
The utility model multipurpose superhigh pressure shielding direct current cables has not only changed the unicity that the superhigh voltage DC cable uses, and has improved interference and reliability in the superhigh voltage DC cable running greatly.
Claims (1)
1. multipurpose superhigh voltage DC shielded type cable, the conductor (1) that comprises transmission current, it is characterized in that: described conductor (1) is outside equipped with the electric field shielding layer, and described electric field shielding layer is followed successively by outward by the lining: conductor screen (2), cross-linked ethylene insulation (3) and insulated non-metal semi-conductive layer shielding (4); Be outside equipped with tinned copper wire braid shielded (5) at the electric field shielding layer, tinned copper wire braid shielded (5) is coated with copper strips shielding (6), outer belting layer (7) and the oversheath (8) of being coated with successively of copper strips shielding (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363762U CN201681655U (en) | 2010-03-19 | 2010-03-19 | Multipurpose ultrahigh-pressure DC shielded cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363762U CN201681655U (en) | 2010-03-19 | 2010-03-19 | Multipurpose ultrahigh-pressure DC shielded cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681655U true CN201681655U (en) | 2010-12-22 |
Family
ID=43346692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201363762U Expired - Fee Related CN201681655U (en) | 2010-03-19 | 2010-03-19 | Multipurpose ultrahigh-pressure DC shielded cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681655U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705913A (en) * | 2017-08-24 | 2018-02-16 | 郑州云海信息技术有限公司 | A kind of new DC power cables and application method |
| CN109272683A (en) * | 2018-11-22 | 2019-01-25 | 国网宁夏电力有限公司宁东供电公司 | The antitheft single-ended monitoring device of the power cable that do not put into operation |
| CN109813970A (en) * | 2018-12-18 | 2019-05-28 | 兰州空间技术物理研究所 | A kind of extensible and pinpoint space electric field instrument of cable |
| WO2021093085A1 (en) * | 2019-11-15 | 2021-05-20 | 中天科技海缆股份有限公司 | Dc submarine cable |
-
2010
- 2010-03-19 CN CN2010201363762U patent/CN201681655U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107705913A (en) * | 2017-08-24 | 2018-02-16 | 郑州云海信息技术有限公司 | A kind of new DC power cables and application method |
| CN109272683A (en) * | 2018-11-22 | 2019-01-25 | 国网宁夏电力有限公司宁东供电公司 | The antitheft single-ended monitoring device of the power cable that do not put into operation |
| CN109272683B (en) * | 2018-11-22 | 2024-03-22 | 国网宁夏电力有限公司宁东供电公司 | Anti-theft single-end monitoring device for power cable without operation |
| CN109813970A (en) * | 2018-12-18 | 2019-05-28 | 兰州空间技术物理研究所 | A kind of extensible and pinpoint space electric field instrument of cable |
| WO2021093085A1 (en) * | 2019-11-15 | 2021-05-20 | 中天科技海缆股份有限公司 | Dc submarine cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20150319 |
|
| EXPY | Termination of patent right or utility model |