CN108233321A - A kind of integral prefabricated rubber insulators of cable - Google Patents
A kind of integral prefabricated rubber insulators of cable Download PDFInfo
- Publication number
- CN108233321A CN108233321A CN201810160599.3A CN201810160599A CN108233321A CN 108233321 A CN108233321 A CN 108233321A CN 201810160599 A CN201810160599 A CN 201810160599A CN 108233321 A CN108233321 A CN 108233321A
- Authority
- CN
- China
- Prior art keywords
- integral prefabricated
- cable
- cylinder
- prefabricated rubber
- conductivity
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/196—Cable junctions protected by sleeves, e.g. for communication cable having lapped insulation
Landscapes
- Cable Accessories (AREA)
Abstract
A kind of integral prefabricated rubber insulators of cable, including stress cone, insulator and shield semiconductors cylinder, the conductivity distribution gradient of shield semiconductors cylinder in the integral prefabricated rubber insulators, i.e. shield semiconductors cylinder internal layer conductivityγ 1, outer layer conductivityγ 2And the conductivity of insulating partγ 3Triangular relationship is：γ 1>γ 2>γ 3.The shield semiconductors cylinder internal layer and outer layer are made, and base material is identical with insulator using identical base material with filler.
Description
Technical field
The present invention relates to a kind of integral prefabricated rubber insulators of cable, belong to electrical insulating material technical field.
Background technology
Transmission of electricity power cable plays a part of conveying electric energy in power grid, and safe and reliable operation is particularly important.According to electric power
Production division counts, and power transmission cable line fault about 85% is happened at transition joint position.
With the development of technology, cable intermediate joint using integral prefabricated rubber insulators as connector, show by structure at present
Meaning is as shown in Figure 2.Integral prefabricated rubber insulators are physically in connection with two sections of cables, it is desirable that prefabricated rubber insulators are not only
Meet insulating requirements, can also optimize cable core junction field strength distribution.Therefore in design, generally shielding cylinder is made
Semiconductor, conductivity gamma1Less than cable copper core, higher than insulator γ3, in single distribution, play optimization field strength distribution.Partly lead
Body shielding cylinder affects the degree of optimization of field strength the overall performance of insulating part.
Invention content
It is an object of the present invention in order to preferably optimize electric field distribution, it is ensured that electric power netting safe running provides one kind
The integral prefabricated rubber insulators of type.
Technical scheme is as follows, a kind of integral prefabricated rubber insulators of cable, including stress cone, insulator and half
Conductor shielding cylinder；The conductivity distribution gradient of shield semiconductors cylinder, i.e. semiconductor screen in the integral prefabricated rubber insulators
Cover an internal layer conductivity gamma1, outer layer conductivity gamma2And the conductivity gamma of insulating part3Triangular relationship is：γ1>γ2>γ3。
The shield semiconductors cylinder internal layer and outer layer are made using identical base material with filler, and base material and insulator phase
Together.
The invention has the advantages that the shielding cylinder conductivity distribution gradient of the present invention, can preferably optimize entirety
The electric field of both preformed rubber insulating part and cable interface；Shielding cylinder conductivity distribution gradient, which can preferably optimize, partly to be led
Body shielding cylinder and the electric field of silicon rubber interface.
Description of the drawings
Fig. 1 is the integral prefabricated rubber insulators structure diagram of the present invention；
Fig. 2 is for existing cable transition joint using integral prefabricated rubber insulators as joint structure schematic diagram；
In figure, 1 is stress cone；2 be insulator；3 be shield semiconductors cylinder.
Specific embodiment
The specific embodiment of the invention is as shown in Figure 1.
The integral prefabricated rubber insulators of a kind of cable of the present embodiment, including stress cone 1, insulator 2 and shield semiconductors cylinder
3；The conductivity distribution gradient of shield semiconductors cylinder 3, i.e. shield semiconductors cylinder internal layer in the integral prefabricated rubber insulators
Conductivity gamma1, outer layer conductivity gamma2And the conductivity gamma of insulating part3Triangular relationship is：γ1>γ2>γ3。
The shield semiconductors cylinder internal layer and outer layer are made using identical base material with filler, and base material and insulator phase
Together.
Claims (2)
1. a kind of integral prefabricated rubber insulators of cable, including stress cone, insulator and shield semiconductors cylinder, which is characterized in that
The conductivity distribution gradient of shield semiconductors cylinder in the integral prefabricated rubber insulators, i.e. shield semiconductors cylinder internal layer conductance
Rate γ1, outer layer conductivity gamma2And the conductivity gamma of insulating part3Triangular relationship is：γ1>γ2>γ3。
A kind of 2. integral prefabricated rubber insulators of cable according to claim 1, which is characterized in that the shield semiconductors
Cylinder internal layer and outer layer are made, and base material is identical with insulating material using identical base material with filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160599.3A CN108233321A (en) | 2018-02-26 | 2018-02-26 | A kind of integral prefabricated rubber insulators of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810160599.3A CN108233321A (en) | 2018-02-26 | 2018-02-26 | A kind of integral prefabricated rubber insulators of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108233321A true CN108233321A (en) | 2018-06-29 |
Family
ID=62662066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810160599.3A Pending CN108233321A (en) | 2018-02-26 | 2018-02-26 | A kind of integral prefabricated rubber insulators of cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108233321A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2026438A1 (en) * | 2008-05-26 | 2009-02-18 | ABB Research LTD | A cable connection electric field control device, and a cable connection arrangement provided therewith |
| CN101461110A (en) * | 2006-06-21 | 2009-06-17 | Abb技术有限公司 | A device for electric field control |
| CN102437544A (en) * | 2010-12-17 | 2012-05-02 | 上海市电力公司 | Prefabricated connector of high-voltage direct-current cross-linked polyethylene cable |
| CN107278347A (en) * | 2014-12-19 | 2017-10-20 | Nkt Hv 电缆有限责任公司 | Manufacture the method and high pressure DC cable connectors of high pressure DC cable connectors |
| CN107634497A (en) * | 2017-10-31 | 2018-01-26 | 清华大学 | Adaptively regulate and control the pre-fabricated electric cables transition joint of composite using electrical conductivity |
-
2018
- 2018-02-26 CN CN201810160599.3A patent/CN108233321A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101461110A (en) * | 2006-06-21 | 2009-06-17 | Abb技术有限公司 | A device for electric field control |
| EP2026438A1 (en) * | 2008-05-26 | 2009-02-18 | ABB Research LTD | A cable connection electric field control device, and a cable connection arrangement provided therewith |
| CN102437544A (en) * | 2010-12-17 | 2012-05-02 | 上海市电力公司 | Prefabricated connector of high-voltage direct-current cross-linked polyethylene cable |
| CN107278347A (en) * | 2014-12-19 | 2017-10-20 | Nkt Hv 电缆有限责任公司 | Manufacture the method and high pressure DC cable connectors of high pressure DC cable connectors |
| CN107634497A (en) * | 2017-10-31 | 2018-01-26 | 清华大学 | Adaptively regulate and control the pre-fabricated electric cables transition joint of composite using electrical conductivity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |