CN201681656U - Direct-current high-voltage cable with composite metal shielding structure - Google Patents
Direct-current high-voltage cable with composite metal shielding structure Download PDFInfo
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- CN201681656U CN201681656U CN2010201363870U CN201020136387U CN201681656U CN 201681656 U CN201681656 U CN 201681656U CN 2010201363870 U CN2010201363870 U CN 2010201363870U CN 201020136387 U CN201020136387 U CN 201020136387U CN 201681656 U CN201681656 U CN 201681656U
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- metal shielding
- composite metal
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- direct
- shielding layer
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Abstract
The utility model discloses a direct-current high-voltage cable with a composite metal shielding structure, which sequentially comprises a cable core, a composite metal shielding layer and an outer protecting layer from inside to outside. The cable core comprises a cylindrical conductor, an extruded conductor semi-conducting layer, a crosslinked polyethylene insulator and an extruded insulation semi-conducting layer, wherein the cylindrical conductor is formed by sequentially twisting metal copper wires from inside to outside, the composite metal shielding layer comprises a copper wire braided shielding layer and a flexible copper tape, the copper wire braided shielding layer is braided via a plurality of copper wires sequentially from inside to outside, a band is disposed outside the composite metal shielding layer, and the outer protecting layer is a polyolefin outer sheath. The direct-current high-voltage cable is reasonable in structure, fine in shielding effect and excellent in interference resistance and safety, can be applicable to different using occasions needing direct current and high voltage, can meet requirements of occasions with different direct-current voltage levels and different safety grounding systems by aid of structural size designs of the insulation layer and the composite metal shielding layer, and can be used for large-sized stadiums, electrostatic precipitation of mine coal separation fields, electron beam machining, electronic impact furnaces and the like.
Description
Technical field
The utility model relates to a kind of direct current high voltage cable, is specifically related to a kind of direct current high voltage cable that adopts the composition metal shielding construction, belongs to the electric wire field.
Background technology
In the current social life, often need a kind of direct current cables and power set adapted.And this direct current cables is required that voltage height (more than the 10kV), anti-electric field on every side disturb, security performance is good, can adapt to different use occasions.The utility model cable can satisfy different environment, different power set power and the use needs of different electric pressures, and more can design the composition metal shielding layer structure and be satisfied according to the sensitivity of different protective device of leakage current.Therefore also be a kind of safety cable.
The utility model content
The purpose of this utility model is for a kind of direct current high voltage cable that adopts the composition metal shielding construction is provided, to solve the problems referred to above of prior art.
The purpose of this utility model can be achieved through the following technical solutions.
A kind of direct current high voltage cable that adopts the composition metal shielding construction is followed successively by cable core, composition metal screen and external protection from inside to outside; Described cable core comprises: be followed successively by the metallic copper skein silk by the lining outward and close and form cylindrical conductor, the conductor semi-conductive layer that extrudes, the crosslinked polyetylene insulated and insulation semi-conductive layer that extrudes; Described composition metal screen comprises: be followed successively by copper wire woven shield and soft copper band by some copper wire braidings outward by the lining; The composition metal screen is outside equipped with band; External protection is the polyolefin oversheath.
Described copper wire woven shield is coated with the wrapped soft copper band in gap.
It is 150～220kV that this cable uses direct voltage.
The utility model is rational in infrastructure, shield effectiveness is good, anti-interference good with fail safe, go for the use occasion of different needs acquisition dc high voltages, and can satisfy different direct voltage grades, different safety ground system occasion by the insulating barrier and the physical dimension design of composition metal screen, can be used for colosseum, coal separation field, mine electrostatic precipitation, electron beam processing, electron bombardment furnace etc.
Description of drawings
Fig. 1 is a cross-sectional structure schematic diagram of the present utility model;
Among the figure: 1, conductor 2, conductor semi-conductive layer 3, crosslinked polyetylene insulated 4, insulation semi-conductive layer 5, copper wire woven shield 6, soft copper band 7, band 8, polyolefin oversheath.
Embodiment
Further set forth structural representation of the present utility model below in conjunction with accompanying drawing and specific embodiment.
A kind of direct current high voltage cable that adopts the composition metal shielding construction as shown in Figure 1 comprises conductor 1, is followed successively by cable core, composition metal screen and external protection from inside to outside; Described cable core comprises: be followed successively by the metallic copper skein silk by the lining outward and close and form cylindrical conductor 1, the conductor semi-conductive layer 2 that extrudes, crosslinked polyetylene insulated 3 and the insulation semi-conductive layer 4 that extrudes; Described composition metal screen comprises: be followed successively by copper wire woven shield 5 and soft copper band 6 by some copper wire braidings outward by the lining; The composition metal screen is outside equipped with band 7; External protection is a polyolefin oversheath 8.
Outside insulation semi-conductive layer 4, then form the composition metal shielding layer structure, improved shield effectiveness greatly by the wrapped soft copper band 6 of some copper wire woven shields 5 and gap.
That this cable has is of many uses, ground connection is reliable, security good, the short time can form the characteristics such as dc high voltage.
Claims (2)
1. a direct current high voltage cable that adopts the composition metal shielding construction comprises conductor, it is characterized in that: be followed successively by cable core, composition metal screen and external protection from inside to outside; Described cable core comprises: be followed successively by the metallic copper skein silk by the lining outward and close and form cylindrical conductor, the conductor semi-conductive layer that extrudes, the crosslinked polyetylene insulated and insulation semi-conductive layer that extrudes; Described composition metal screen comprises: be followed successively by copper wire woven shield and soft copper band by some copper wire braidings outward by the lining; The composition metal screen is outside equipped with band; External protection is the polyolefin oversheath.
2. a kind of direct current high voltage cable that adopts the composition metal shielding construction according to claim 1 is characterized in that: described copper wire woven shield is coated with the wrapped soft copper band in gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363870U CN201681656U (en) | 2010-03-19 | 2010-03-19 | Direct-current high-voltage cable with composite metal shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363870U CN201681656U (en) | 2010-03-19 | 2010-03-19 | Direct-current high-voltage cable with composite metal shielding structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201681656U true CN201681656U (en) | 2010-12-22 |
Family
ID=43346693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201363870U Expired - Fee Related CN201681656U (en) | 2010-03-19 | 2010-03-19 | Direct-current high-voltage cable with composite metal shielding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201681656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130047847A1 (en) * | 2011-08-29 | 2013-02-28 | Commissariat A L'energie Atomique Et Aux Ene Alt | Electrostatic collection device of particles in suspension in a gaseous environment |
| CN103346415A (en) * | 2013-05-29 | 2013-10-09 | 国家电网公司 | Flexible cable joint applied to alpine region |
| CN109686492A (en) * | 2018-12-19 | 2019-04-26 | 浙江泰索科技有限公司 | A kind of shielded coaxial signal cable of composition metal outer tube |
-
2010
- 2010-03-19 CN CN2010201363870U patent/CN201681656U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130047847A1 (en) * | 2011-08-29 | 2013-02-28 | Commissariat A L'energie Atomique Et Aux Ene Alt | Electrostatic collection device of particles in suspension in a gaseous environment |
| US9610587B2 (en) * | 2011-08-29 | 2017-04-04 | Commissariat á l'ènergie atomique et aux ènergies alternatives | Electrostatic collection device of particles in suspension in a gaseous environment |
| CN103346415A (en) * | 2013-05-29 | 2013-10-09 | 国家电网公司 | Flexible cable joint applied to alpine region |
| CN103346415B (en) * | 2013-05-29 | 2016-08-10 | 国家电网公司 | Extremely frigid zones flexible cable joint |
| CN109686492A (en) * | 2018-12-19 | 2019-04-26 | 浙江泰索科技有限公司 | A kind of shielded coaxial signal cable of composition metal outer tube |
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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 |