CN202549478U - High-voltage high-current pulse cable - Google Patents
High-voltage high-current pulse cable Download PDFInfo
- Publication number
- CN202549478U CN202549478U CN 201220169071 CN201220169071U CN202549478U CN 202549478 U CN202549478 U CN 202549478U CN 201220169071 CN201220169071 CN 201220169071 CN 201220169071 U CN201220169071 U CN 201220169071U CN 202549478 U CN202549478 U CN 202549478U
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- CN
- China
- Prior art keywords
- current pulse
- pulse cable
- adopts
- cable
- inner wire
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a high-voltage high-current pulse cable, which comprises an inner conductor, an inner conductor shielding layer, an insulating layer, an insulated shielding layer, an open-lapping outer conductor and an outer sheath from interior to exterior. The cable can be applied to a special environment of the high-voltage high-current pulse cable and is used for connecting a metal shielding layer and a crossed interconnecting box, induction voltage in the metal shielding layer is reduced or limited, the long-term safety operation of the cable is ensured, and the high-voltage high-current pulse cable is high in applicability, economical efficiency, manufacturability and structural property and is deserved to be popularized.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of high-voltage great-current pulse cable.
Background technology
The alternating current that passes through in the cable core certainly leads to alternating magnetic fields, can on metallic shield and armour, produce induced electromotive force, because metal screen layer adopts earthing mode, will on metallic shield and armour, produce induced voltage; For the three-core cable that metallic shield is arranged, the phasor of the three-phase current that passes through because of core and be zero is so the induced voltage phasor in metal screen layer and also be zero; But mesohigh, ultrahigh voltage power cable to single core; Induced voltage just possibly reach very big numerical value, especially under short-circuit conditions, possibly decuple normal electric current through several in the core; The induced voltage that produces is the entail dangers to personal safety not only, also can puncture the outer jacket of metallic sheath.Fast development along with mesohigh, superhigh pressure transmission line; This hidden danger and danger are more and more paid attention to by the people; So, must calculate and take restriction to induced voltage, as take cross interconnected case to carry out cable cross exchanged form; Reduce or limit the induced voltage in the metal screen layer, guarantee the long-term safety operation of cable.
Connect metal screen layer and cross interconnected case; Just need to use the high-voltage great-current pulse cable, both can guarantee to be used for transmitting various instantaneous high pressure unidirectional pulse electric currents, can make cable possess low-loss, Low ESR, high shielding, anti-interference again; High pressure resistant; The environment for use of cable has been widened in corrosion resistant instructions for use, makes the high-voltage great-current pulse cable have good market prospects.
The utility model content
The purpose of the utility model be the utility model provide a kind of result of use good, have a good electric property; Various instantaneous high pressure unidirectional pulses both can have been guaranteed to be used for transmitting; Can make cable possess low-loss, Low ESR, high shielding, anti-interference again; High pressure resistant, the high-voltage great-current pulse cable of corrosion-resistant instructions for use.
The technical scheme that realizes the utility model purpose is a kind of high-voltage great-current pulse cable, comprises from the inside to the outside inner wire, inner wire screen, insulating barrier, insulation screen, thin around outer conductor and oversheath.
Said inner wire is that the 2nd type the circle that meets GB/T 3956-2008 regulation is pressed lay configuration.
Said inner wire screen adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
Said insulating barrier adopts the crosslinked polyethylene material to extrude and forms, and extruding thickness range is 2.5mm-10.5mm.
Said insulation screen adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
Said outer conductor adopts the combarloy silk to dredge around forming, as the backflow core and the inner wire formation loop of cable; Outer conductor forms full-closed structure simultaneously.
Said oversheath adopts flame retardant type pvc material or high-density polyethylene material to extrude and forms.
Adopted technique scheme, the utlity model has following beneficial effect: (1) the utility model adopts inner and outer conductor concentric stranding combining structure, and is novel special; Can reach the effect in two-phase loop, compare, can also play and reduce outside diameter of cable size with twin core cable; Reduce manufacturing cost, simultaneously, outer conductor forms full-closed structure; Also play metal screen layer, antijamming capability significantly strengthens, and is to achieve many things at one stroke.
(2) oversheath of the utility model can be different according to environmental requirement, need the good occasion of anti-flammability and Corrosion Protection, select the flame retardant type pvc material for use; And when needing good block-water performance, select high-density polyethylene material for use.
(3) the utility model can satisfy the instructions for use of high-voltage great-current pulse cable environment fully; Have good electrical properties, mechanical property, fire resistance, water resistance, jamproof shielding properties; This product each item performance index advanced person, compact conformation, external diameter is little and the manufacturing process feasibility is strong, with short production cycle.
Description of drawings
For the content that makes the utility model is expressly understood more easily,, the utility model is done further detailed explanation, wherein below according to specific embodiment and combine accompanying drawing
Fig. 1 is the cross section structure sketch map of the utility model.
Label is in the accompanying drawing:
Inner wire 1, inner wire screen 2, insulating barrier 3, insulation screen 4, outer conductor 5 and oversheath 6.
Embodiment
(embodiment 1)
See Fig. 1, a kind of high-voltage great-current pulse cable of present embodiment comprises from the inside to the outside inner wire 1, inner wire screen 2, insulating barrier 3, insulation screen 4, thin around outer conductor 5 and oversheath 6.
Inner wire 1 presses lay configuration for the 2nd type the circle that meets GB/T 3956-2008 regulation.
Inner wire screen 2 adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
Insulating barrier 3 adopts the crosslinked polyethylene material of low-loss, Low ESR, high dielectric to extrude and forms, and extruding thickness range is 2.5mm-10.5mm.
Insulation screen 4 adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
Outer conductor 5 adopts the combarloy silk to dredge around forming, as the backflow core and the inner wire 1 formation loop of cable; Outer conductor 5 forms full-closed structure simultaneously, and shield effectiveness is good, anti-electromagnetic interference capability is strong.
Oversheath 6 adopts flame retardant type pvc material or high-density polyethylene material to extrude and forms, and is different according to environmental requirement, needs the good occasion of anti-flammability and Corrosion Protection, selects the flame retardant type pvc material for use; And when needing good block-water performance, select high-density polyethylene material for use.
Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (7)
1. a high-voltage great-current pulse cable is characterized in that: comprise from the inside to the outside inner wire (1), inner wire screen (2), insulating barrier (3), insulation screen (4), thin around outer conductor (5) and oversheath (6).
2. a kind of high-voltage great-current pulse cable according to claim 1 is characterized in that: said inner wire (1) presses lay configuration for the 2nd type the circle that meets GB/T 3956-2008 regulation.
3. high-voltage great-current pulse cable according to claim 1 and 2 is characterised in that: said inner wire screen (2) adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
4. high-voltage great-current pulse cable according to claim 3 is characterized in that: said insulating barrier (3) adopts the crosslinked polyethylene material to extrude and forms, and extruding thickness range is 2.5mm-10.5mm.
5. high-voltage great-current pulse cable according to claim 4 is characterized in that: said insulation screen (4) adopts the cross-linked polyolefin semiconductive shieldin material to extrude and forms.
6. high-voltage great-current pulse cable according to claim 5 is characterized in that: said outer conductor (5) adopts the combarloy silk to dredge around forming, as the backflow core and inner wire (1) the formation loop of cable; Outer conductor (5) forms full-closed structure simultaneously.
7. high-voltage great-current pulse cable according to claim 6 is characterized in that: the structure that said oversheath (6) adopts flame retardant type pvc material or high-density polyethylene material to extrude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220169071 CN202549478U (en) | 2012-04-19 | 2012-04-19 | High-voltage high-current pulse cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220169071 CN202549478U (en) | 2012-04-19 | 2012-04-19 | High-voltage high-current pulse cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549478U true CN202549478U (en) | 2012-11-21 |
Family
ID=47170071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220169071 Expired - Fee Related CN202549478U (en) | 2012-04-19 | 2012-04-19 | High-voltage high-current pulse cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332236A (en) * | 2014-04-02 | 2015-02-04 | 国家电网公司 | Cable |
-
2012
- 2012-04-19 CN CN 201220169071 patent/CN202549478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332236A (en) * | 2014-04-02 | 2015-02-04 | 国家电网公司 | Cable |
| CN104332236B (en) * | 2014-04-02 | 2018-01-19 | 国家电网公司 | A kind of 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20210419 |