CN103326281A - Secondary wire core protecting end - Google Patents
Secondary wire core protecting end Download PDFInfo
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- CN103326281A CN103326281A CN2013102696465A CN201310269646A CN103326281A CN 103326281 A CN103326281 A CN 103326281A CN 2013102696465 A CN2013102696465 A CN 2013102696465A CN 201310269646 A CN201310269646 A CN 201310269646A CN 103326281 A CN103326281 A CN 103326281A
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- insulation shell
- shell body
- insulating shell
- cavity
- described insulation
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Abstract
A secondary wire core protecting end comprises an insulating shell body. The insulating shell body is of a cylindrical cavity structure with one end opened. Corrugated thin patterns in the circumferential direction are arranged on the outer surface of the insulating shell body. The insulating shell body comprises a center cavity. The center cavity and the insulating shell body are arranged coaxially. The center cavity is divided into two sections in the direction from the opened end of the insulating shell body to the closed end of the insulating shell body. The section close to the opened end of the insulating shell body is a cylindrical inner cavity and the section close to the closed end of the insulating shell body is a conic inner cavity with the top end cut. The diameter of the conic inner cavity is gradually reduced in the direction from the opened end of the insulating shell body to the closed end of the insulating shell body. The insulating shell body further comprises an annular cavity. The annular cavity and the center cavity are arranged in a coaxial mode and the center cavity is surrounded by the annular cavity in the center position. The secondary wire core protecting end has the advantages of being simple in structure, capable of being used conveniently and reliably and improving the efficiency of completing insulating protecting work in secondary construction, good in reliability of insulation protection and capable of reducing the occurrence of abnormal accidents and avoiding safety accidents.
Description
Technical field
The present invention relates to the guard technology field of electric power system secondary operation, specifically a kind of secondary core protects the termination.
Background technology
In the secondary work progress of electric power system; the relaying protection staff overhauls the secondary failure of transformer station; check relevant phase sequence or more during exchange device; the staff will adjust or remove the voltage wiring of Awaiting Overhaul or equipment to be replaced; because above-mentioned operation is carried out being with under the electrical environment; and not well insulation protection measure; pressure-wire very easily adjust or demolishing process in the phenomenon that is short-circuited; cause the secondary device fault; burn; even the life security that jeopardizes operating personnel; so the pressure-wire of Awaiting Overhaul or equipment to be replaced will be isolated fully with normal operational outfit; prevent from overhauling or changing work influence to the equipment that runs well; cause the unusual even breaking of normal operation equipment, avoid the generation of security incident.
At present in the maintenance of finishing the secondary construction or when changing operation, be mostly to utilize insulating tape that the core of pressure-wire is twined to realize the purpose that insulate, maintenance or change operation and finish after with adhesive tape by taking off rewiring on the core.The deficiency that aforesaid way exists is: the specification disunity of the insulating tape of use, and mode, dynamics that operating personnel are twined are different, so insulation effect does not guarantee poor stability; When being wrapped in adhesive tape on the core, if dynamics is too small, just can not well insulate, if dynamics is excessive, when removing adhesive tape, can cause removing difficulty, and pull down on the core behind the adhesive tape with one deck glue, need to carry out the wiping cleaning, affect the operating efficiency that secondary is constructed.
Summary of the invention
For solving the technical problem of above-mentioned existence, the object of the present invention is to provide a kind of easy to use, reliable, and a kind of secondary core protection simple in structure termination.
The present invention solves the technical scheme that its technical problem takes: a kind of secondary core protection termination, comprise insulation shell, described insulation shell is the column cavity body structure that an end opens wide, described insulation shell comprises center cavity, described center cavity and the coaxial setting of insulation shell, described center cavity is divided into two sections along insulation shell openend to blind end direction, one section near the insulation shell openend is cylindrical interior volume, one section near the insulation shell blind end is the taper inner chamber, and footpath, the chamber of taper inner chamber reduces gradually along described insulation shell openend to blind end direction.
Further, described insulation shell also comprises a ring chamber, and an end of described ring chamber is made as openend, the other end is made as blind end, and the openend of ring chamber is identical with the openend direction of insulation shell; Described ring chamber is enclosed in its center with the coaxial setting of described center cavity and with center cavity.
Further, at the outer surface of described insulation shell circumferential waveform microgroove is set, increases the frictional force between hand and the insulation shell, convenient cable knob is screwed into described protection termination.
Further, described insulation shell adopts the electrically insulating silicone rubber material to make.
The invention has the beneficial effects as follows: it is simple in structure, and is easy to use, reliable, finishes the efficient of insulation protection work when having improved the secondary construction, has better played the effect of insulation protection, has reduced the generation of abnormal failure, avoids security incident.
Description of drawings
Fig. 1-1 is the principal section structural representation of embodiment one;
Fig. 1-2 is the left TV structure schematic diagram of embodiment one;
Fig. 2-1 is the principal section structural representation of embodiment two;
Fig. 2-2 is the profile of A-A direction among Fig. 2-1;
Fig. 3 is the structural representation of the embodiment of the invention three;
Among the figure: 1 insulation shell, 11 center cavities, 12 ring chambers.
Embodiment
For convenient understanding to technical scheme of the present invention, below in conjunction with accompanying drawing it is elaborated.
Said left, right, up, down refers to relative position in the literary composition, does not refer to the absolute position, can not be interpreted as the restriction to technical scheme of the present invention.
Embodiment one
Shown in Fig. 1-1 and Fig. 1-2, a kind of secondary core protection termination, comprise the insulation shell 1 of being made by the electrically insulating silicone rubber material, described insulation shell 1 is the column cavity body structure that an end opens wide, outer surface at described insulation shell 1 arranges circumferential waveform microgroove, increase the frictional force between hand and described insulation shell 1 outer surface, when avoiding in the cavity that cable knob is tightened in this protection termination, skid not because rubbing between hand and insulation shell 1 outer surface, and then cable knob can not be screwed in the cavity of described protection termination well, realize reliable insulation protection; Described insulation shell 1 comprises center cavity 11; described center cavity 11 and insulation shell 1 coaxial setting; described center cavity 1 is divided into two sections from left to right; one section that is positioned at the right side is cylindrical interior volume; one section that is positioned at the left side is the taper inner chamber; make the chamber of the cylindrical interior volume of keeping right directly be slightly larger than the external diameter of cable core; so conveniently cable core termination is inserted in this protection termination; the footpath, chamber of the taper inner chamber that keeps left reduces from right to left gradually; during use; constantly be screwed into the inner chamber of described insulation shell 1 along with the cable knob right-to-left, can make the combination between protection termination and the cable knob tightr, further increase the reliability of insulation protection.
Embodiment two
Shown in Fig. 2-1 and Fig. 2-2, with embodiment one difference be, described insulation shell 1 also comprises a ring chamber 12, and an end of described ring chamber 12 is made as openend, the other end is made as blind end, and the openend of ring chamber 12 is identical with the openend direction of insulation shell 1; Described ring chamber 12 is enclosed in its center with described center cavity 11 coaxial settings and with described center cavity 11.
According to the size of described ring chamber 12 cavitys that arrange, the present embodiment has different occupation modes:
When the cavity of described ring chamber 12 radially narrow, the same with embodiment one, can be used in any type of cable knob, because the electrically insulating silicone rubber material has certain elasticity, at this moment, narrow ring chamber 12 plays the effect of cushion chamber.That is to say; when cable knob being inserted the taper inner chamber section of described center cavity 11; the taper inner chamber radially has certain span; when relatively not having ring chamber 12; finally make the bottom of the more close taper inner chamber of cable knob; further increase the protection termination to the binding force of cable knob, increase the reliability of protection.
When the cavity of described ring chamber 12 radially wider (this moment, the chamber of corresponding described center cavity 11 directly can be smaller), be applicable to ring-type molded line cable, there is a tensile cord at the center of ring-type molded line cable, working is the tensile strength that strengthens cable, prevent that cable from being broken, around this tensile cord, be distributed with the multi-cable line, during use tensile cord inserted described center cavity 11, cable around the tensile cord is inserted described ring chamber 12, there is not radially binding force between the chamber wall of cable and ring-type inner chamber 12, binding force by radial effect between the taper inner chamber of tensile cord and described center cavity 11 will protect the termination that the termination is sleeved on cable securely.
Need to prove, embodiment one preferably is used in the linear pattern cable, because when using embodiment one on the termination of ring-type molded line cable, because certain twisting is arranged when inserting cable in the protection termination, can produce certain moment of torsion to the cable of ring-type molded line cable like this, make the tip bend of cable, become in disorder, be unfavorable for carrying out smoothly of follow-up wiring work.
Embodiment three
As shown in Figure 3, on the basis of embodiment two, certain thickness is excised respectively in top and the bottom of described insulation shell 1, making becomes the plane, conveniently is affectedly bashful.Certainly this execution mode also is fit to embodiment one.That is to say, no matter for embodiment one or embodiment two, the radial section of described insulation shell 1 is not limited only to circle, and it can also be the known figures such as rhombus, hexagon or triangle.
Claims (4)
1. a secondary core protects the termination, it is characterized in that:
Comprise insulation shell (1), described insulation shell (1) is the column cavity body structure that an end opens wide;
Described insulation shell (1) comprises center cavity (11);
Described center cavity (11) and the coaxial setting of described insulation shell (1);
Described center cavity (11) is divided into two sections along described insulation shell (1) openend to blind end direction, one section near described insulation shell (1) openend is cylindrical interior volume, one section near described insulation shell (1) blind end is the taper inner chamber, and footpath, the chamber of this taper inner chamber reduces gradually along described insulation shell (1) openend to blind end direction.
2. a kind of secondary core according to claim 1 protects the termination, it is characterized in that: described insulation shell (1) also comprises a ring chamber (12), one end of described ring chamber (12) is made as openend, the other end is made as blind end, and the openend of described ring chamber (12) is identical with the openend direction of described insulation shell (1); Described ring chamber (12) is enclosed in its center with the coaxial setting of described center cavity (11) and with described center cavity (11).
3. a kind of secondary core according to claim 1 and 2 protects the termination, and it is characterized in that: the outer surface at described insulation shell (1) arranges circumferential waveform microgroove.
4. a kind of secondary core according to claim 1 and 2 protects the termination, it is characterized in that: described insulation shell (1) adopts the electrically insulating silicone rubber material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102696465A CN103326281A (en) | 2013-06-29 | 2013-06-29 | Secondary wire core protecting end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102696465A CN103326281A (en) | 2013-06-29 | 2013-06-29 | Secondary wire core protecting end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103326281A true CN103326281A (en) | 2013-09-25 |
Family
ID=49194887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102696465A Pending CN103326281A (en) | 2013-06-29 | 2013-06-29 | Secondary wire core protecting end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103326281A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716606A (en) * | 2013-12-17 | 2015-06-17 | 国家电网公司 | Cable head protecting device |
| CN104795773A (en) * | 2014-12-02 | 2015-07-22 | 国网青海省电力公司黄化供电公司 | Insulated package casing |
| CN106684758A (en) * | 2017-01-23 | 2017-05-17 | 国家电网公司 | Anti-leakage protection device |
| CN107370068A (en) * | 2017-06-29 | 2017-11-21 | 国网山东省电力公司菏泽供电公司 | One kind insulation encapsulating instrument |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168345Y (en) * | 1993-04-12 | 1994-06-08 | 胡列 | Connecting sleeve of wire |
| FR2732522A1 (en) * | 1995-03-27 | 1996-10-04 | Silec Liaisons Elec | Insulating termination for end of high or very high tension electrical cable |
| JPH10233134A (en) * | 1997-02-19 | 1998-09-02 | Fujikura Ltd | Terminal cap for covered conductor |
| CN2686053Y (en) * | 2004-03-03 | 2005-03-16 | 周洲 | Electrical shock protection safety cover cap |
| CN2932654Y (en) * | 2006-07-28 | 2007-08-08 | 何铁军 | Cable thermal shrinkage terminal cap |
| CN201466489U (en) * | 2009-08-04 | 2010-05-12 | 石家庄供电公司 | Protective cap for cable end socket and pressure plate of relay protection device |
| CN201556895U (en) * | 2009-11-18 | 2010-08-18 | 孙宝德 | Cable sleeve |
| CN102227080A (en) * | 2011-04-14 | 2011-10-26 | 辽宁省电力有限公司盘锦供电公司 | Wire insulation cap |
| CN203326544U (en) * | 2013-06-29 | 2013-12-04 | 国家电网公司 | Secondary wire-core protective end |
-
2013
- 2013-06-29 CN CN2013102696465A patent/CN103326281A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2168345Y (en) * | 1993-04-12 | 1994-06-08 | 胡列 | Connecting sleeve of wire |
| FR2732522A1 (en) * | 1995-03-27 | 1996-10-04 | Silec Liaisons Elec | Insulating termination for end of high or very high tension electrical cable |
| JPH10233134A (en) * | 1997-02-19 | 1998-09-02 | Fujikura Ltd | Terminal cap for covered conductor |
| CN2686053Y (en) * | 2004-03-03 | 2005-03-16 | 周洲 | Electrical shock protection safety cover cap |
| CN2932654Y (en) * | 2006-07-28 | 2007-08-08 | 何铁军 | Cable thermal shrinkage terminal cap |
| CN201466489U (en) * | 2009-08-04 | 2010-05-12 | 石家庄供电公司 | Protective cap for cable end socket and pressure plate of relay protection device |
| CN201556895U (en) * | 2009-11-18 | 2010-08-18 | 孙宝德 | Cable sleeve |
| CN102227080A (en) * | 2011-04-14 | 2011-10-26 | 辽宁省电力有限公司盘锦供电公司 | Wire insulation cap |
| CN203326544U (en) * | 2013-06-29 | 2013-12-04 | 国家电网公司 | Secondary wire-core protective end |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716606A (en) * | 2013-12-17 | 2015-06-17 | 国家电网公司 | Cable head protecting device |
| CN104716606B (en) * | 2013-12-17 | 2017-02-15 | 国家电网公司 | Cable head protecting device |
| CN104795773A (en) * | 2014-12-02 | 2015-07-22 | 国网青海省电力公司黄化供电公司 | Insulated package casing |
| CN106684758A (en) * | 2017-01-23 | 2017-05-17 | 国家电网公司 | Anti-leakage protection device |
| CN106684758B (en) * | 2017-01-23 | 2018-06-19 | 国家电网公司 | A kind of electric leakage protector |
| CN107370068A (en) * | 2017-06-29 | 2017-11-21 | 国网山东省电力公司菏泽供电公司 | One kind insulation encapsulating instrument |
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Application publication date: 20130925 |