CN105207135A - Treatment method for high-voltage cable head middle core wire - Google Patents
Treatment method for high-voltage cable head middle core wire Download PDFInfo
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- CN105207135A CN105207135A CN201510602026.8A CN201510602026A CN105207135A CN 105207135 A CN105207135 A CN 105207135A CN 201510602026 A CN201510602026 A CN 201510602026A CN 105207135 A CN105207135 A CN 105207135A
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- heart yearn
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Abstract
The invention discloses a treatment method for a high-voltage cable head middle core wire. The treatment method comprises the following steps that the section of the core wire is cut neatly, non-linting fine cloth or paper is used for cleaning the surface of the side face of the core wire, the core wire is smeared with conductive paste, after the core wire is sleeved with a chilling-shrinkage type internal insulating sheath pipe and two stress pipes in advance, a copper connecting pipe is used for being connected with the core wire in a pressing mode, then the core wire is sleeved with two thermal-shrinking type external insulating sheath pipes, and meanwhile, abrasive cloth is used for polishing the conical surface and cleaning the surface; finally, the exposed core wire, the copper connecting pipe and the inner protecting insulating layer conical surface are coated with semi-conductor materials, the whole coated external surface forms a neat cylinder shape, the semi-conductor materials are composite materials formed by ethylene-vinyl acetate copolymers, carbon black and organic peroxides. The novel semi-conductor materials are applied, the structure of the semi-conductor coating is set so as to improve field intensity distribution of high-voltage cable connectors, insulating performance of a main insulating layer is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to a kind of high-voltgae pothead manufacture method, particularly the processing method of the middle heart yearn of high-voltgae pothead, belong to electric power connection technical field.
Background technology
When existing high-voltgae pothead makes, only when pressing copper connecting tube, regulation strips out heart yearn, but it is not too much clear and definite to specific requirement, if and the length that in fact heart yearn exposes main insulation brings the axial tension of bearing between heart yearn to differ for a moment, cause indivedual heart yearn stressed excessive, easily make the copper pipe crimping of this heart yearn easily tired; On the other hand, to the polishing of heart yearn, clean and smear conductive paste and do not clearly state, if not according to step process and explicitly call for, can cause conducting electricity newly can be inconsistent or the last dielectric constant at this position that causes of chip is uneven, cause later stage fault, as problems such as insulation property reduction, shortenings in useful life.
Summary of the invention
The object of the invention is to overcome above deficiency, the processing method of heart yearn in the middle of a kind of easy and simple to handle, a kind of high-voltgae pothead of improve insulation property, long service life is provided.
Object of the present invention is achieved through the following technical solutions: the processing method of heart yearn in the middle of a kind of high-voltgae pothead, comprises the following steps:
A, heart yearn section to be cropped neat, side fine cloth or the paper clean surface of not falling hair;
B, at heart yearn surface smear conductive paste;
C, package in a cold-contraction type and crimp heart yearn, two pieces thermal shrinkage type outer insulation jacket pipe with copper connecting tube after insulating sleeve pipe, two pieces stress tube in advance, carry out polishing and clean surface with the tapered end that emery cloth internally protects insulating barrier simultaneously;
D, heart yearn to exposed, copper connecting tube and interiorly protect insulating barrier taper surface coating semiconductor material, whole coating outer surface is formed neatly cylindrical.
Further improvement of the present invention is: semi-conducting material is the composite material of ethylene-vinyl acetate copolymer, carbon black, antioxidant, crosslinking agent.
Further improvement of the present invention is: carbon black is common conductive carbon black or superconductive carbon black.
Further improvement of the present invention is: antioxidant is antioxidant 1010 or antioxidant 300.
Further improvement of the present invention is: crosslinking agent is oxidation dicumyl, di-t-butyl peroxide, 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-acetylene or 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-ethane tert-butyl group hydrogen.
The present invention compared with prior art has the following advantages: the present invention selects novel semi-conductor shielding material, and needs the technical indicator reached to carry out clear and definite setting to semiconductor coating scope, physical dimension and outer diameter face, can effectively alleviate because cable body screen peels off the concentrated problem of the incision position electric-field strength that brings.
embodiment:
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in one embodiment of the invention and feature can combine with the element shown in one or more other execution mode and feature.It should be noted that for purposes of clarity, in explanation, eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
A kind of execution mode of the processing method of heart yearn in the middle of a kind of high-voltgae pothead of the present invention, comprises the following steps:
A, heart yearn section to be cropped neat, side fine cloth or the paper clean surface of not falling hair;
B, at heart yearn surface smear conductive paste;
C, package in a cold-contraction type and crimp heart yearn, two pieces thermal shrinkage type outer insulation jacket pipe with copper connecting tube after insulating sleeve pipe, two pieces stress tube in advance, carry out polishing and clean surface with the tapered end that emery cloth internally protects insulating barrier simultaneously;
D, heart yearn to exposed, copper connecting tube and interiorly protect insulating barrier taper surface coating semiconductor material, whole coating outer surface is formed neatly cylindrical.
Semi-conducting material is the composite material of ethylene-vinyl acetate copolymer, carbon black, antioxidant, crosslinking agent, carbon black is common conductive carbon black or superconductive carbon black, antioxidant is antioxidant 1010 or antioxidant 300, crosslinking agent is oxidation dicumyl, di-t-butyl peroxide, 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-acetylene or 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-ethane tert-butyl group hydrogen.
The structure of the present invention's application novel semiconductor material and setting coated semiconductor, to improve high-voltage cable joint place field strength distribution, improves insulation property and the useful life of main insulating layer; The present invention selects novel semi-conductor shielding material, and needs the technical indicator reached to carry out clear and definite setting to semiconductor coating scope, physical dimension and outer diameter face, can effectively alleviate because cable body screen peels off the concentrated problem of the incision position electric-field strength that brings.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by specification.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (5)
1. a processing method for the middle heart yearn of high-voltgae pothead, is characterized in that: comprise the following steps:
A, heart yearn section to be cropped neat, side fine cloth or the paper clean surface of not falling hair;
B, at heart yearn surface smear conductive paste;
C, package in a cold-contraction type and crimp heart yearn, two pieces thermal shrinkage type outer insulation jacket pipe with copper connecting tube after insulating sleeve pipe, two pieces stress tube in advance, carry out polishing and clean surface with the tapered end that emery cloth internally protects insulating barrier simultaneously;
D, heart yearn to exposed, copper connecting tube and interiorly protect insulating barrier taper surface coating semiconductor material, whole coating outer surface is formed neatly cylindrical.
2. the processing method of heart yearn in the middle of a kind of high-voltgae pothead according to claim 1, is characterized in that: semi-conducting material is the composite material of ethylene-vinyl acetate copolymer, carbon black, antioxidant, crosslinking agent.
3. the processing method of heart yearn in the middle of a kind of high-voltgae pothead according to claim 2, is characterized in that: carbon black is common conductive carbon black or superconductive carbon black.
4. the processing method of heart yearn in the middle of a kind of high-voltgae pothead according to claim 2, is characterized in that: antioxidant is antioxidant 1010 or antioxidant 300.
5. the processing method of heart yearn in the middle of a kind of high-voltgae pothead according to claim 2, it is characterized in that: crosslinking agent is oxidation dicumyl, di-t-butyl peroxide, 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-acetylene or 2,5-dimethyl-2,5-bis-(t-butyl peroxy)-ethane tert-butyl group hydrogen.
Priority Applications (1)
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CN201510602026.8A CN105207135A (en) | 2015-09-21 | 2015-09-21 | Treatment method for high-voltage cable head middle core wire |
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CN201510602026.8A CN105207135A (en) | 2015-09-21 | 2015-09-21 | Treatment method for high-voltage cable head middle core wire |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109449713A (en) * | 2018-10-23 | 2019-03-08 | 胡林斌 | A kind of industry power lug mode of connection |
CN111682464A (en) * | 2020-06-29 | 2020-09-18 | 中国化学工程第十一建设有限公司 | Cable intermediate joint manufacturing construction method and high-voltage cable |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1233386A (en) * | 1996-10-10 | 1999-10-27 | 法国电气公司 | Method for making a conductor, or electric circuit balanced in radio electric interference such as micro-discharge and corresponding conductor or circuit |
CN103944117A (en) * | 2014-03-11 | 2014-07-23 | 汕头市南帆电器有限公司 | Manufacturing method for intermediate connector of high voltage cable |
CN104184078A (en) * | 2014-07-07 | 2014-12-03 | 江苏海纬集团有限公司 | Manufacturing of intermediate joint of high-voltage cable |
-
2015
- 2015-09-21 CN CN201510602026.8A patent/CN105207135A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1233386A (en) * | 1996-10-10 | 1999-10-27 | 法国电气公司 | Method for making a conductor, or electric circuit balanced in radio electric interference such as micro-discharge and corresponding conductor or circuit |
CN103944117A (en) * | 2014-03-11 | 2014-07-23 | 汕头市南帆电器有限公司 | Manufacturing method for intermediate connector of high voltage cable |
CN104184078A (en) * | 2014-07-07 | 2014-12-03 | 江苏海纬集团有限公司 | Manufacturing of intermediate joint of high-voltage cable |
Non-Patent Citations (1)
Title |
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程中华: "10千伏交联聚乙烯电缆中间接头制作工艺简述", 《供电企业管理》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109449713A (en) * | 2018-10-23 | 2019-03-08 | 胡林斌 | A kind of industry power lug mode of connection |
CN111682464A (en) * | 2020-06-29 | 2020-09-18 | 中国化学工程第十一建设有限公司 | Cable intermediate joint manufacturing construction method and high-voltage cable |
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Application publication date: 20151230 |