CN201075655Y - Integral prefabricated type middle joint - Google Patents
Integral prefabricated type middle joint Download PDFInfo
- Publication number
- CN201075655Y CN201075655Y CNU2007201556532U CN200720155653U CN201075655Y CN 201075655 Y CN201075655 Y CN 201075655Y CN U2007201556532 U CNU2007201556532 U CN U2007201556532U CN 200720155653 U CN200720155653 U CN 200720155653U CN 201075655 Y CN201075655 Y CN 201075655Y
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- CN
- China
- Prior art keywords
- transition joint
- integral prefabricated
- joint according
- shielding layer
- prefabricated formula
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Abstract
The utility model relates to an integrated prefabrication type center joint, which includes a stress cone, an earthing subassembly, a conductor shielding layer, an external shielding layer and an insulating layer; the shielding layer, the stress cone and the external shielding layer are interconnected into a whole by the insulating layer so as to form an integrated rubber part, which is sheathed on a cable. The integrated rubber part of the utility model is prefabricated together as a whole, thus avoiding the partial discharge caused by an air gap between the layers and improving the safety property and the electric performance; at the same time, the installation becomes more convenient and rapid. Furthermore, the center joint of the utility model is dry type structure and avoids the dissolvability between the rubber part and the insulating oil.
Description
Technical field
The utility model relates to cable fitting, particularly a kind of integral prefabricated formula transition joint that is applicable to the 110KV cross-linked polyethylene insulated cable.
Background technology
At electric power at a distance aspect the transmission, need cable to realize, and cable every dish length when dispatching from the factory has certain limitation, the safety that need realize two cables when erecting cable connects, because voltage levels is very high, the cable joint place can produce very big distortion electric field, if do not take certain measure, cause that very easily stress is concentrated, thereby have influence on the safe operation of transmission line.
Summary of the invention
For addressing the above problem, the utility model provides a kind of integral prefabricated formula transition joint, and whole rubber parts is integral prefabricated together, can carry out standardization control in factory, utilize the erecting tools of transition joint rubber parts to install during construction and installation, easy for installation, safeguard simple.
The main technical schemes that the utility model adopts is: integral prefabricated formula transition joint, comprise stress cone, and grounding assembly also comprises conductor shield, stress cone, outer shielding layer, insulating barrier; Described conductor shield, outer shielding layer and stress cone are interconnected to form an integral body by insulating barrier, constitute described whole rubber parts, and described whole rubber parts is sleeved on the cable.
The utility model also adopts following attached technical scheme: outside described whole rubber parts, be with a shell, the two ends of described shell are punctured into conical in shape, described grounding assembly is two grounding contacts that are located on the described shell, and the material contracting with heat that described shell is provided with high insulation resistance outward carries out sealed insulation;
Described two grounding contacts are interconnected with one another, or insulation each other;
The periphery wall of described shell is provided with adhesive waterproof tape, and described adhesive waterproof tape adopts the PVC material;
Described shell adopts high-intensity copper product to make;
Outside described shell, be with a glass steel cage, and between described shell and glass steel cage, fill waterproofing agent;
Described conductor connecting rod adopts the good red copper material of electric conductivity to make.
The beneficial effect that adopts the utility model to bring: (1) whole rubber parts of the present utility model is together integral prefabricated, can carry out standardization control in factory, utilize the erecting tools of transition joint rubber parts to install during construction and installation, easy for installation, safeguard simple.(2) whole rubber parts is that conductor shield, stress cone, outer shielding layer and insulating barrier are combined into an integral body, has avoided between each layer because the partial discharge that the existence of air gap causes.Improved security performance and electric property, installed also more convenient simultaneously.(3) stress cone (key component of major control Electric Field Distribution) in the whole rubber parts of the utility model, its physical dimension is determined after through Computer Simulation transition joint electric Field Calculation, the cut-off part of insulation screen is extended, make zero potential become horn-like, improved the Electric Field Distribution of insulation screen, its margin of safety improves, and makes performance of the present utility model more reliable.(4) transition joint of the present utility model is a dry construction, has avoided the problem of rubber parts and insulating oil compatibility.
Description of drawings
Fig. 1 is the utility model overall structure cut-away view;
Fig. 2 is the structure cut-away view of the whole rubber parts of the utility model;
Embodiment
Below in conjunction with accompanying drawing the present invention is done further detailed description:
As shown in Figure 1 and Figure 2, the integral prefabricated formula transition joint for the utility model provides comprises the whole rubber parts 2 that is sleeved on conductor connecting rod 1 and the cable insulation, and whole rubber parts 2 comprises conductor shield 8, stress cone 6, outer shielding layer 9, insulating barrier 7.Conductor shield 8, stress cone 6 and outer shielding layer 9 are interconnected to form an integral body by insulating barrier 7, constitute whole rubber parts 2, and whole rubber parts cover 2 is contained on the cable.
In the present embodiment, utilize the fixedly cable conduction core at two ends of fastening bolt by a conductor connecting rod 1 between two sections cable cores.In addition, also can adopt compression bonding apparatus attached cable conductor wire core, it is stable to guarantee that core connects.
The manufacture process of whole rubber parts 2 is, earlier the stress cone 6 of moulding in advance, conductor shield 8, outer shielding layer 9 are fixed, insulating cement is filled in injection then, thereby make stress cone 6, conductor screen 8, with external shield 9 with insulate and 7 under the effect of insulating cement, become one, such integrative-structure has effectively been stopped the generation of bubble and impurity, has effectively guaranteed the safety in operation of transmission line.Conductor shield 8 and outer shielding layer 9 adopt electric conducting material to make.
Wherein, stress cone 6 forces the field strength distribution of cable shield incision position even.The physical dimension of stress cone 6 determines that the flexibility of its curved surface can reach best technique effect after through Computer Simulation transition joint electric Field Calculation.The cut-off part of insulation screen is extended, make zero potential become horn-like, improved the Electric Field Distribution of insulation screen, its margin of safety improves.
Place, whole rubber parts 2 centre positions is provided with the conductor shield 8 that electric conducting material is made, the cable sandwich layer generally carries out crimping by conductor connecting rod 1, also need to hold to concordant with the main insulation of cable with semi-conductive tape in the outside of conductor connecting rod 1, this semi-conductive tape should fully contact with conductor shield 8.
The installation of whole rubber parts 2 adopts silicone grease as lubricated interface, so that install, the air gap of filling interface reaches the purpose that reduces partial discharge to get rid of gas simultaneously.Because whole rubber parts 2 general self caoutchouc elasticity that rely on can have certain sealing function.
Outside whole rubber parts 2, be with a shell 3, the two ends of shell 3 are punctured into conical in shape, and grounding assembly is two grounding contacts 31 that are located on the shell 3, and these two grounding contacts 31 are interconnected with one another, or insulation each other.The shell 3 outer material contracting with heats that are provided with high insulation resistance carry out sealed insulation.The periphery wall of shell 3 is provided with adhesive waterproof tape, and adhesive waterproof tape adopts the PVC material.Shell 3 adopts high-intensity copper product to make.
Outside shell 3, be with a glass steel cage 5, and between shell 3 and glass steel cage 5, fill waterproofing agent 4.Shell 3, the whole rubber parts 2 of glass steel cage 5 protections, the destruction that prevents external environment.The waterproofing agent of filling between shell 3, the glass steel cage 5 further prevents the immersion of moisture.
The utility model is socketed in whole rubber parts 2, shell 3 on the cable earlier when two sections cables are connected, and with conductor connecting rod 1 end of two cable sandwich layers is crimped on together then, and whole rubber parts 2 and shell 3 are correctly located.
Claims (8)
1. integral prefabricated formula transition joint comprises stress cone (6), and grounding assembly is characterized in that: also comprise conductor shield (8), outer shielding layer (9), insulating barrier (7); Described conductor shield (8), outer shielding layer (9) and stress cone (6) are interconnected to form an integral body by insulating barrier (7), constitute whole rubber parts (2), and described whole rubber parts (2) is set on the cable insulation of cable.
2. integral prefabricated formula transition joint according to claim 1, it is characterized in that: outside described whole rubber parts (2), be with a shell (3), the two ends of described shell (3) are punctured into conical in shape, described grounding assembly is for being located at two grounding contacts (31) on the described shell (3), and the outer material contracting with heat that is provided with high insulation resistance of described shell (3) carries out sealed insulation.
3. integral prefabricated formula transition joint according to claim 2 is characterized in that: described two grounding contacts (31) are interconnected with one another, or insulation each other.
4. integral prefabricated formula transition joint according to claim 3 is characterized in that: the periphery wall of described shell (3) is provided with adhesive waterproof tape, and described adhesive waterproof tape adopts the PVC material.
5. integral prefabricated formula transition joint according to claim 4 is characterized in that: described shell (3) adopts high-intensity copper product to make.
6. integral prefabricated formula transition joint according to claim 5 is characterized in that: outside described shell (3), be with a glass steel cage (5), and be filled with waterproofing agent (4) between described shell (3) and glass steel cage (5).
7. integral prefabricated formula transition joint according to claim 6 is characterized in that: described conductor connecting rod (1) adopts the good red copper material of electric conductivity to make.
8. integral prefabricated formula transition joint according to claim 7 is characterized in that: described conductor shield (8), outer shielding layer (9) adopt electric conducting material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201556532U CN201075655Y (en) | 2007-07-30 | 2007-07-30 | Integral prefabricated type middle joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201556532U CN201075655Y (en) | 2007-07-30 | 2007-07-30 | Integral prefabricated type middle joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075655Y true CN201075655Y (en) | 2008-06-18 |
Family
ID=39520912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201556532U Expired - Fee Related CN201075655Y (en) | 2007-07-30 | 2007-07-30 | Integral prefabricated type middle joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075655Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640403A (en) * | 2009-07-23 | 2010-02-03 | 福建中能电气股份有限公司 | Cable insulated joint |
| CN102185274A (en) * | 2011-01-04 | 2011-09-14 | 江苏远航电缆附件有限公司 | 110KV intermediate head and production process thereof |
| 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 |
| CN102480116A (en) * | 2010-11-23 | 2012-05-30 | 上海市电力公司 | Prefabricated joint for high-voltage direct-current cross-linked polyethylene cable |
| CN102496900A (en) * | 2011-11-14 | 2012-06-13 | 申环电缆科技有限公司 | Manufacturing method of whole-prefabricated intermediate joint |
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN106207944A (en) * | 2016-07-08 | 2016-12-07 | 3M创新有限公司 | Cable and the method for attachment of attachment structure, method of attachment, cable and terminal thereof |
| CN110658191A (en) * | 2019-09-17 | 2020-01-07 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
| CN111571939A (en) * | 2019-02-19 | 2020-08-25 | 安徽省浩辉电力技术有限公司 | Production mould of high tension cable terminal stress cone |
-
2007
- 2007-07-30 CN CNU2007201556532U patent/CN201075655Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640403A (en) * | 2009-07-23 | 2010-02-03 | 福建中能电气股份有限公司 | Cable insulated joint |
| CN102480116A (en) * | 2010-11-23 | 2012-05-30 | 上海市电力公司 | Prefabricated joint for high-voltage direct-current cross-linked polyethylene cable |
| 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 |
| CN102437544B (en) * | 2010-12-17 | 2014-10-29 | 上海市电力公司 | Prefabricated connector of high-voltage direct-current cross-linked polyethylene cable |
| CN102185274A (en) * | 2011-01-04 | 2011-09-14 | 江苏远航电缆附件有限公司 | 110KV intermediate head and production process thereof |
| CN102185274B (en) * | 2011-01-04 | 2013-04-17 | 江苏远航电缆附件有限公司 | Production process of 110KV intermediate head |
| CN102496900A (en) * | 2011-11-14 | 2012-06-13 | 申环电缆科技有限公司 | Manufacturing method of whole-prefabricated intermediate joint |
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN106207944A (en) * | 2016-07-08 | 2016-12-07 | 3M创新有限公司 | Cable and the method for attachment of attachment structure, method of attachment, cable and terminal thereof |
| CN111571939A (en) * | 2019-02-19 | 2020-08-25 | 安徽省浩辉电力技术有限公司 | Production mould of high tension cable terminal stress cone |
| CN110658191A (en) * | 2019-09-17 | 2020-01-07 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
| CN110658191B (en) * | 2019-09-17 | 2022-06-21 | 全球能源互联网欧洲研究院 | Conductor on-line monitoring system and method for cable intermediate joint and manufacturing method thereof |
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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: BEIJING GUODIAN SIWEI CLEAN ENERGY TECHNOLOGY CO., Free format text: FORMER OWNER: BEIJING GUODIAN SIWEI ELECTRIC TECHNOLOGY CO., LTD. Effective date: 20100517 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 101500 NO.1, DONGJI ROAD, MIYUN DISTRICT INDUSTRY DEVELOPMENT AREA, BEIJINGCITY TO: 101500 NO.6, DONGJI ROAD, MIYUN ECONOMIC DEVELOPMENT ZONE, BEIJING CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100517 Address after: 101500 Beijing Miyun Economic Development Zone Dong Ji Road No. 6 Patentee after: Beijing Solarwe Cleaning Energy Technology Co.,Ltd. Address before: 101500 Beijing City Industrial Development Zone in Miyun District East Ji Road No. 1 Patentee before: Beijing Sowell Electric Power Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20150730 |
|
| EXPY | Termination of patent right or utility model |