CN102623946A - Cable prefabricated intermediate connector and method for mounting conductor shielding covers of cable prefabricated intermediate connector - Google Patents
Cable prefabricated intermediate connector and method for mounting conductor shielding covers of cable prefabricated intermediate connector Download PDFInfo
- Publication number
- CN102623946A CN102623946A CN2012100898256A CN201210089825A CN102623946A CN 102623946 A CN102623946 A CN 102623946A CN 2012100898256 A CN2012100898256 A CN 2012100898256A CN 201210089825 A CN201210089825 A CN 201210089825A CN 102623946 A CN102623946 A CN 102623946A
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- cable
- conductor
- screen cover
- conductor screen
- cable insulation
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Abstract
The invention provides a cable prefabricated intermediate connector, which comprises two butting cable cores, conductor connection hardware parts, cable insulating layers and two conductor shielding covers. The conductor connection hardware parts are crimped outside the butting cable cores; the conductor connection hardware parts are connected with the conductor shielding covers through copper braided straps; the conductor shielding covers are provided with cable insulating grooves; the cable insulating grooves are matched with the two ends of each conductor shielding cover; and the two ends of each conductor shielding cover are arranged in the cable insulating grooves. The invention further provides a method for mounting the two conductor shielding covers of the cable prefabricated intermediate connector, and the method comprises the following steps of: stripping off a cable, and carrying out crimping on the two cable cores by using the connection hardware parts; forming the cable insulating grooves in the cable insulating layers, wherein the formed cable insulating grooves are matched with the conductor shielding covers; and tightly connecting the two shielding covers with each other. The conductor shielding covers are matched with the cable insulating grooves, so that the size is fixed, the uncontrollable factors are avoided, the allowable error space in the mounting of the connector is increased, and a product can be more reliable.
Description
Technical field
The present invention relates to high pressure, ultrahigh voltage power electric cable accessories gold utensil and installation method thereof; Relate in particular to the power cable with cross-linked polyethylene insulation prefabricated transition joint (straight coupling and insulating joint) that is used for 110kV, 220kV, 330kV, 500kV and above electric pressure, main effect is that all press the conductor junction; Be suitable for nominal cross: 240mm
2And the middle of above power cable with cross-linked polyethylene insulation connects.
Background technology
The existing cable conductor connects all, and the pressure mode mainly contains:
(1) wrapped semiconductive self-adhesive tape;
(2) with shrinkage or pyrocondensation semiconductive pipe;
(3) all press with metallic shield.
Existing connected mode major defect has:
The surface of wrapped semiconductive self-adhesive tape is smooth inadequately, and the softer poor effect of all pressing of material;
Also softer with semiconductive tubing matter, all press effect to be not so good as metal material;
Metallic shield, material is harder, and is effective to the transition joint conformal, and conduction all presses effect fine.But most no positioning actions of at present popular grading shield or locating effect are bad, do not have the retraction effect that prevents to insulate, and two lobe grading shield connected modes connect with PVC tape or constant force spring, misplace easily during installation, have certain hidden danger.As depicted in figs. 1 and 2: each component names is following among the figure: 101 is cable jacket, and 102 is cable metal sheath, and 103 is insulation shield; 104 is cable insulation, and 105 are the transition joint main body, and 106 is radome; 107 is stress control tube, and 108 is the copper braid over braid, and 109 are conductor connection gold utensil; 110 is cable core, and 111 are the prefabricated rubber insulators of transition joint.Among the figure left and two arrows to the right represent the retraction direction of the prefabricated rubber insulators of transition joint.
Because when promoting the prefabricated rubber insulators of transition joint, the radome end that thereupon slips like Fig. 2, is the left end that slipped.Radome slides back formation than big slit, adapter body easy deformation.After the cable line operation, the cable heating, cable insulation has rebound phenomenon, so cable insulation may break away from stress control tube, causes puncture.
Summary of the invention
In order to solve problem in the prior art; The invention provides the transition joint of a kind of cable prefabricated, it comprises that the cable core of butt joint, conductor connect gold utensil, cable insulation, conductor screen cover, and the said conductor of the outer crimping of the cable core of butt joint connects gold utensil; Conductor connects gold utensil and is connected through the copper braid over braid with said conductor screen cover; The conductor screen cover is provided with the cable insulation groove, and said cable insulation groove matches with the two ends of conductor screen cover, and the two ends of conductor screen cover are located in the cable insulation groove.
As further improvement of the present invention, the conductor screen cover is two lobes, and two lobe conductor screen covers are connected by spring catch.
As further improvement of the present invention, the copper braid over braid that said conductor connects between gold utensil and the conductor screen cover is fixed by screw.
The present invention also provides a kind of installation method of cable prefabricated transition joint conductor screen cover, and it may further comprise the steps,
The strip off cable carries out crimping with connecting gold utensil with two sections cable cores;
On cable insulation, open the cable insulation groove, the cable insulation groove of being offered matches with the conductor screen cover;
Conductor is connected gold utensil and the conductor screen cover couples together with the copper braid over braid;
Two lobe conductor screen covers are buckled in the cable insulation groove, and two lobe radomes are connected closely.
As further improvement of the present invention, the conductor screen cover is two lobes, and two lobe conductor screen covers are connected by spring catch.
As further improvement of the present invention, the copper braid over braid that conductor connects between gold utensil and the conductor screen cover is fixed by screw.
As further improvement of the present invention, the cable insulation groove is offered on cable insulation with cable insulation exploitation cutter by core, and polishes smooth.
The invention has the beneficial effects as follows: the radome material is a metal material, is difficult for crimp, and is effective to the conformal of indirect head main body; Conductor connects gold utensil and after crimping, can prolong, and the prolongation amount is wayward, causes conductor screen cover length and cable core to open the stripping size and is difficult to corresponding.The present invention takes first crimping, after open the mode that positions of stripping insulation tank, well solved this problem.
Conductor connects between gold utensil and the conductor screen cover and adopts the copper braid over braid to be connected, and is fixed by screw, makes its connection effect splendid, and the electric field equipotential is effective.
After the cable joint installation energising operation, cable can generate heat, and the insulation meeting of cable bounces back to two ends from incision position, if when amount of recovery is big, then cable insulation can break away from stress control tube, causes joint to puncture; The present invention slots cable insulation, is fixed by the conductor screen cover, the retraction problems of cable insulation after having avoided being heated.
Two lobes of at present popular metallic conductor radome are fixed by PVC tape or constant force spring;, the transition joint insulating body takes PVC tape to the stress tube outside easily when being installed; Or the easy scratch transition joint main body of constant force spring, have certain hidden danger, and two lobe conductor screen covers of the present invention adopt spring catch to connect; Not only can avoid above problem, and connect better effects if.
In a word, conductor screen cover and cable insulation fit dimension are fixed, and have avoided uncontrollable factor, increased joint the permissible error space is installed, and make product more reliable.
Description of drawings
Fig. 1 is the cable intermediate joint structural representation of existing metallic shield;
Fig. 2 is the cable intermediate joint cutaway view of existing metallic shield;
Fig. 3 is first figure of the installation method of a kind of cable prefabricated of the present invention transition joint conductor screen cover;
Fig. 4 is the enlarged drawing of the A among Fig. 3;
Fig. 5 is second figure of installation method of the present invention;
Fig. 6 is the 3rd figure of installation method of the present invention;
Fig. 7 is the 4th figure of installation method of the present invention;
Fig. 8 is the structural representation that two lobe conductor screen covers are connected by spring catch;
Fig. 9 is the general structure sketch map that the assembling of transition joint main body is accomplished.
Each component names is following among Fig. 3 to 9: cable jacket 201, cable metal sheath 202, insulation shield 203, cable insulation 204; Conductor screen cover 206, joint stress control tube 207, copper braid over braid 208, conductor connects gold utensil 209; Cable core 210, splice insulation main body 211, cable insulation groove 301, splicing ear and screw 302; Spring catch 303, pin-and-hole 304, joint stress cone 305, joint screen 306.
Embodiment
Below in conjunction with description of drawings and embodiment the present invention is further specified.
As shown in Figure 9; The invention provides the transition joint of a kind of cable prefabricated; It comprises that the cable core 210 of butt joint, conductor connect gold utensil 209, cable insulation 204, conductor screen cover 206, and the said conductor of the cable core 210 outer crimping of butt joint connects gold utensil 209, and conductor connects gold utensil 209 and is connected through copper braid over braid 208 with said conductor screen cover 206; The copper braid over braid 208 that said conductor connects between gold utensil 209 and the conductor screen cover 206 is fixed by screw; Conductor screen cover 206 is provided with cable insulation groove 301, and said cable insulation groove 301 matches with the two ends of conductor screen cover 206, and the two ends of conductor screen cover 206 are located in the cable insulation groove 301.Conductor screen cover 301 is two lobes, and two lobe conductor screen covers 301 are connected by spring catch 303.
To shown in Figure 9, the present invention provides a kind of installation method of cable prefabricated transition joint conductor screen cover like Fig. 3, and it may further comprise the steps:
Cable is opened after stripping finishes dealing with, and core is connected gold utensil 209 with conductor carry out crimping, and two sections cable cores are connected.(Fig. 3 and Fig. 4)
After the cable core crimping is accomplished,, make it to match, and polish smooth with the conductor screen cover with the cable insulation groove 301 of core with private cable insulation exploitation cutter katal sizing on cable insulation 204.(Fig. 5)
Conductor is connected gold utensil and the conductor screen cover couples together with the copper braid over braid, and it is good that it is connected.(Fig. 6)
Two lobe conductor screen covers are connected by spring catch, two lobe conductor screen covers are buckled in the cable insulation groove, and two lobe radomes are connected closely.(Fig. 7 and Fig. 8)
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (7)
1. cable prefabricated transition joint; It is characterized in that: it comprises that the cable core of butt joint, conductor connect gold utensil, cable insulation, conductor screen cover; The said conductor of the outer crimping of the cable core of butt joint connects gold utensil, and conductor connects gold utensil and is connected through the copper braid over braid with said conductor screen cover, and the conductor screen cover is provided with the cable insulation groove; Said cable insulation groove matches with the two ends of conductor screen cover, and the two ends of conductor screen cover are located in the cable insulation groove.
2. a kind of cable prefabricated according to claim 1 transition joint is characterized in that: the conductor screen cover is two lobes, and two lobe conductor screen covers are connected by spring catch.
3. a kind of cable prefabricated according to claim 1 transition joint is characterized in that: the copper braid over braid that said conductor connects between gold utensil and the conductor screen cover is fixed by screw.
4. the installation method of a cable prefabricated transition joint conductor screen cover, it is characterized in that: it may further comprise the steps,
The strip off cable carries out crimping with connecting gold utensil with two sections cable cores;
On cable insulation, open the cable insulation groove, the cable insulation groove of being offered matches with the conductor screen cover;
Conductor is connected gold utensil and the conductor screen cover couples together with the copper braid over braid;
Two lobe conductor screen covers are buckled in the cable insulation groove, and two lobe radomes are connected closely.
5. the installation method of a kind of cable prefabricated transition joint conductor screen cover according to claim 4, it is characterized in that: the conductor screen cover is two lobes, two lobe conductor screen covers are connected by spring catch.
6. the installation method of a kind of cable prefabricated transition joint conductor screen cover according to claim 4 is characterized in that: the copper braid over braid that conductor connects between gold utensil and the conductor screen cover is fixed by screw.
7. the installation method of a kind of cable prefabricated transition joint conductor screen cover according to claim 4 is characterized in that: the cable insulation groove is offered on cable insulation with cable insulation exploitation cutter by core, and polishes smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100898256A CN102623946A (en) | 2012-03-30 | 2012-03-30 | Cable prefabricated intermediate connector and method for mounting conductor shielding covers of cable prefabricated intermediate connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100898256A CN102623946A (en) | 2012-03-30 | 2012-03-30 | Cable prefabricated intermediate connector and method for mounting conductor shielding covers of cable prefabricated intermediate connector |
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| Publication Number | Publication Date |
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| CN102623946A true CN102623946A (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100898256A Pending CN102623946A (en) | 2012-03-30 | 2012-03-30 | Cable prefabricated intermediate connector and method for mounting conductor shielding covers of cable prefabricated intermediate connector |
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| CN (1) | CN102623946A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242221A (en) * | 2014-09-30 | 2014-12-24 | 江苏普朗克电力科技有限公司 | Novel intermediate joint based on cable chilling contraction |
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
| CN107769148A (en) * | 2017-11-24 | 2018-03-06 | 广东电网有限责任公司珠海供电局 | A kind of design method of high-voltage alternating cable transition joint stress cone |
| CN108899861A (en) * | 2018-07-23 | 2018-11-27 | 常州安凯特电力器件有限公司 | The transition joint of double-walled roller and its mounting process |
| CN110031731A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | Puncture test macro and method for cables with extruded insulation direct current |
| CN110707652A (en) * | 2019-10-23 | 2020-01-17 | 长园电力技术有限公司 | Cable terminal switching device and rapid switching power supply method |
| CN111431137A (en) * | 2020-04-20 | 2020-07-17 | 深圳供电局有限公司 | Cable intermediate joint |
| CN112082664A (en) * | 2020-09-16 | 2020-12-15 | 长园电力技术有限公司 | Temperature sensor installation device |
| CN113471925A (en) * | 2021-06-30 | 2021-10-01 | 国网北京市电力公司 | Cable joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106436A (en) * | 1985-08-27 | 1987-03-25 | 卡维·皮雷利公司 | The joint that has extruding insulation layer cable |
| JPH08149678A (en) * | 1994-11-25 | 1996-06-07 | Tokyo Electric Power Co Inc:The | Insertion joint for rubber, plastic power cable |
| CN201061117Y (en) * | 2007-06-21 | 2008-05-14 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV crosslinked cable middle joint |
| CN202474790U (en) * | 2012-03-30 | 2012-10-03 | 长园电力技术有限公司 | Prefabricated intermediate joint for cable |
-
2012
- 2012-03-30 CN CN2012100898256A patent/CN102623946A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85106436A (en) * | 1985-08-27 | 1987-03-25 | 卡维·皮雷利公司 | The joint that has extruding insulation layer cable |
| JPH08149678A (en) * | 1994-11-25 | 1996-06-07 | Tokyo Electric Power Co Inc:The | Insertion joint for rubber, plastic power cable |
| CN201061117Y (en) * | 2007-06-21 | 2008-05-14 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV crosslinked cable middle joint |
| CN202474790U (en) * | 2012-03-30 | 2012-10-03 | 长园电力技术有限公司 | Prefabricated intermediate joint for cable |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242221A (en) * | 2014-09-30 | 2014-12-24 | 江苏普朗克电力科技有限公司 | Novel intermediate joint based on cable chilling contraction |
| CN106872830A (en) * | 2017-03-21 | 2017-06-20 | 国网浙江省电力公司电力科学研究院 | One kind the experiment transition joint of high-tension cable plug-in and cable testing apparatus |
| CN107769148A (en) * | 2017-11-24 | 2018-03-06 | 广东电网有限责任公司珠海供电局 | A kind of design method of high-voltage alternating cable transition joint stress cone |
| CN107769148B (en) * | 2017-11-24 | 2019-12-06 | 广东电网有限责任公司珠海供电局 | design method of high-voltage alternating-current cable intermediate joint stress cone |
| CN108899861A (en) * | 2018-07-23 | 2018-11-27 | 常州安凯特电力器件有限公司 | The transition joint of double-walled roller and its mounting process |
| CN110031731B (en) * | 2019-04-10 | 2021-06-11 | 上海交通大学 | System and method for testing direct current breakdown of extruded insulated cable |
| CN110031731A (en) * | 2019-04-10 | 2019-07-19 | 上海交通大学 | Puncture test macro and method for cables with extruded insulation direct current |
| CN110707652A (en) * | 2019-10-23 | 2020-01-17 | 长园电力技术有限公司 | Cable terminal switching device and rapid switching power supply method |
| CN110707652B (en) * | 2019-10-23 | 2020-10-02 | 长园电力技术有限公司 | Cable terminal switching device and rapid switching power supply method |
| CN111431137A (en) * | 2020-04-20 | 2020-07-17 | 深圳供电局有限公司 | Cable intermediate joint |
| CN111431137B (en) * | 2020-04-20 | 2021-12-21 | 深圳供电局有限公司 | Cable intermediate joint |
| CN112082664A (en) * | 2020-09-16 | 2020-12-15 | 长园电力技术有限公司 | Temperature sensor installation device |
| CN113471925A (en) * | 2021-06-30 | 2021-10-01 | 国网北京市电力公司 | Cable joint |
| CN113471925B (en) * | 2021-06-30 | 2022-09-02 | 国网北京市电力公司 | Cable joint |
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Application publication date: 20120801 |