CN105428841A - Cable grounding device - Google Patents
Cable grounding device Download PDFInfo
- Publication number
- CN105428841A CN105428841A CN201511027631.3A CN201511027631A CN105428841A CN 105428841 A CN105428841 A CN 105428841A CN 201511027631 A CN201511027631 A CN 201511027631A CN 105428841 A CN105428841 A CN 105428841A
- Authority
- CN
- China
- Prior art keywords
- cable
- main unit
- crossover sub
- ring main
- grounding
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
Abstract
The invention provides a cable grounding device. when a ring main unit is required to be repaired, a cable is inserted from a lower port of a cable T type connector, a cable wiring terminal is fixed through a fixing and connecting component arranged in the horizontal section of the cable T type connector; the wiring terminal of the ring main unit is inserted from one end of the horizontal section of the cable T type connector and is connected with the fixing and connecting component; one end of the fixing and connecting component is connected with a grounding component through a plug-in cable adapter head; and therefore, grounding operation before equipment and cable line maintenance can be realized, an installation process is simple, the technical problem of influence on the power supply reliability of a ring main unit station caused by increased maintenance difficulty and need for large-area power blackout which are further brought about by a situation that no grounding switches are adopted in the prior art can be solved, and therefore, efficiency of maintenance work can be improved; and an arc extinguishing circuit is arranged in the cable adapter head, and therefore, electric arcs will not be generated when the cable wiring terminal is plugged in or pulled out, and the safety of maintenance personnel can be ensured.
Description
Technical field
The present invention relates generally to technical field of safety protection, more particularly relates to a kind of cable grounding device.
Background technology
Along with the development of power distribution network cable process, in all insulation, in the looped network station of hermetically sealed miniaturization, generally apply cable branch box, box type transformer etc., when carrying out upkeep operation to this looped network station equipment, because its equipment is all insulation, hermetically sealed setting, an electrical verification cannot be carried out and plug-in connecting wires also exists very large potential safety hazard, in addition, applicant finds, what adopt between the cable branch box in looped network station is that tandem connects, and this cable branch box is only occurring that side is provided with grounding switch, thus, when changing maintenance to inlet wire cable, not only increase maintenance difficulty, and need large-area power-cuts, have a strong impact on looped network station power supply reliability.
Summary of the invention
In view of this, the invention provides a kind of cable grounding device, solve prior art when maintenance is changed to inlet wire cable, affecting looped network station power supply reliability because increasing power failure area and the low technical problem of overhaul efficiency.
To achieve these goals, this application provides following technical scheme:
A kind of cable grounding device, described device comprises:
T-shaped joint of cable, wherein, the binding post of the pluggable ring main unit in horizontal segment one end of described T-shaped joint of cable;
Be arranged on the fixed connecting part of described T-shaped joint of cable horizontal segment inside, for the fixing cable connecting terminal inserting described T-shaped joint of cable inside from the lower port of described T-shaped joint of cable, and when the binding post of described ring main unit inserts described T-shaped joint of cable, one end is connected with the binding post of described ring main unit;
Cable crossover sub that the is rear and other end grafting of described fixed connecting part is inserted from the horizontal segment other end of described T-shaped joint of cable in one end, and described cable crossover sub is built-in with arc-suppression circuit;
The other end grafting of one end and described cable crossover sub, the grounded parts of other end ground connection.
Preferably, described device also comprises:
When described cable crossover sub is not with described grounded parts grafting, be plugged on the insulating protective cover on the sleeve pipe of described cable crossover sub.
Preferably, described fixed connecting part is specially connecting bolt, and described connecting bolt one end is provided with screw thread, then described connecting bolt is connected with the binding post of described ring main unit by described screw thread.
Preferably, described grounded parts is specially 7 font grounded partss, and wherein, the horizontal segment of described 7 font grounded partss is plugged on the sleeve pipe of described cable crossover sub, and the lower port of vertical section connects earth connection.
Preferably, described device also comprises:
The grounding pin be connected with the lower port of the vertical section of described 7 font grounded parts.
Preferably, described grounded parts comprises:
Insulation box;
Be arranged at least one Male head connector on described insulation box, and the binding post of the link of described Male head connector and described ring main unit is suitable, the other end draws earth connection;
The multiplex grounding head be connected with described earth connection.
Preferably, when described grounded parts includes multiple Male head connector, the arrangement mode of described multiple Male head connector is the side-by-side configuration having certain intervals each other.
Preferably, described Male head connector outermost layer is provided with indicating circuit, whether is normally used to indicate ground connection.
Preferably, described multiplex grounding head comprises: nut joint, U-joint and earth terminal.
Preferably, described grounded parts comprises:
With the conduction contiguous block of described cable crossover sub grafting;
Be wrapped in the insulating case on described conduction contiguous block surface;
The grounding pin be connected with described conduction contiguous block one end.
As can be seen here, compared with prior art, this application provides a kind of cable grounding device, when needs overhaul ring main unit, after cable is inserted from the lower port of T-shaped joint of cable, by the fixed connecting part arranged in this T-shaped joint of cable horizontal segment, this cable connecting terminal is fixed, and the binding post of ring main unit horizontal segment one end from this T-shaped joint of cable is inserted and is connected with this fixed connecting part, and the other end of this fixed connecting part is connected with grounded parts by the cable crossover sub of grafting, thus the ground connection operation achieved before equipment and cable line maintenance, installation process is simple, solve in prior art because of no ground disconnecting link, and increase maintenance difficulty and need large-area power-cuts, and affect the technical problem of looped network station power supply reliability, improve service work efficiency, and, this cable crossover sub is built-in with arc-suppression circuit, electric arc is produced when effectively prevent cable connecting terminal plug, ensure that the safety of maintainer.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of a kind of cable grounding device embodiment of the present invention;
Fig. 2 is the part-structure schematic diagram of the another kind of cable grounding device embodiment of the present invention;
Fig. 3 is another part structural representation of a kind of cable grounding device embodiment of the present invention;
Fig. 4 is the structural representation of the multiplex grounding head of a kind of cable grounding device of the present invention grounded parts embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
This application provides a kind of cable grounding device, when needs overhaul ring main unit, after cable is inserted from the lower port of T-shaped joint of cable, by the fixed connecting part arranged in this T-shaped joint of cable horizontal segment, this cable connecting terminal is fixed, and the binding post of ring main unit horizontal segment one end from this T-shaped joint of cable is inserted and is connected with this fixed connecting part, and the other end of this fixed connecting part is connected with grounded parts by the cable crossover sub of grafting, thus the ground connection operation achieved before equipment and cable line maintenance, installation process is simple, solve in prior art because of no ground disconnecting link, and increase maintenance difficulty and need large-area power-cuts, and affect the technical problem of looped network station power supply reliability, improve service work efficiency, and, this cable crossover sub is built-in with arc-suppression circuit, electric arc is produced when effectively prevent cable connecting terminal plug, ensure that the safety of maintainer.
With reference to the structural representation of a kind of cable grounding device embodiment of the present invention shown in Fig. 1, the cable grounding device that the present embodiment provides specifically can comprise: T-shaped joint of cable 100, fixed connecting part 200, cable crossover sub 300 and grounded parts 400, wherein:
The binding post 500 of the pluggable ring main unit in horizontal segment one end of described T-shaped joint of cable 100;
It is inner that fixed connecting part 200 is arranged on described T-shaped joint of cable 100 horizontal segment, for the fixing cable connecting terminal 600 inserting described T-shaped joint of cable 100 inside from the lower port of described T-shaped joint of cable 100, and when the binding post 500 of described ring main unit inserts described T-shaped joint of cable 100, one end of this fixed connecting part 200 is connected with the binding post 500 of described ring main unit.
Other end grafting that is rear and described fixed connecting part 200 is inserted from the horizontal segment other end of described T-shaped joint of cable 100 in cable crossover sub 300 one end, and in the present embodiment, this cable crossover sub 300 is built-in with arc-suppression circuit.
Wherein, the circuit connection structure of this arc-suppression circuit can refer to existing arc-suppression circuit, and the present invention is not described in detail in this, in actual applications, the arc-suppression circuit set up produces arc phenomenon when effectively prevent cable connecting terminal plug, thus ensure that the personal safety of maintainer.
One end of grounded parts 400 and the other end grafting of described cable crossover sub 300, other end ground connection.
Optionally, in the practical application of the present embodiment, the part-structure schematic diagram of the another kind of cable grounding device shown in composition graphs 2 is known, this device can also comprise insulating protective cover 700, for when described cable crossover sub 300 is not with described grounded parts 400 grafting, when namely not needing to hang earth connection, this insulating protective cover 700 is plugged on the sleeve pipe of described cable crossover sub 300, thus described cable crossover sub 300 is covered, with external insulation, not only avoid staff's error shock, and prevent external substance access to plant inner and affect Earthing Reliability.
Wherein, the internal diameter of this insulating protective cover 700 opening direction and the sleeve pipe of cable crossover sub 300 match, and both are by being threaded or directly plugging connection, and the present invention does not do concrete restriction to this.
In the present embodiment; as shown in Figure 2; when this cable crossover sub 300 is pyramidal structure; this insulating protective cover 700 is specifically as follows the insulating protective cover of the cylindrical structure that one end is closed; but be not limited thereto, it can change according to the change of the cable output end profile of plug-in cable joint 300, and the present invention describes in detail no longer one by one at this; pay so long as not those skilled in the art personnel that creative work determines, all belong to scope.
In addition, in actual applications, conveniently dismantle this insulating protective cover 700, insulating tab can be set at this insulating protective cover 700 top; Certainly; also can setting operation hole on this insulating protective cover 700; when needs hang earth connection; by insulating bar, described insulating protective cover 700 is pulled out from described cable crossover sub 300; so that the cover interface tube that electroscope inserts described cable crossover sub 300 carries out electrical verification, thus avoids hot line job and endanger operating personnel's personal safety.
Optionally, this fixed connecting part 200 is specifically as follows connecting bolt as shown in Figure 1, and in the present embodiment, this connecting bolt one end is provided with screw thread, then this connecting bolt is connected by this screw thread with the binding post 500 of ring main unit.
In addition, above-mentioned grounded parts 400 is specifically as follows 7 font grounded partss, and as shown in Figure 1, the horizontal segment of 7 font grounded partss described in this is plugged on the sleeve pipe of described cable crossover sub 300, and the lower port of vertical section connects earth connection.
In actual applications, the earth connection of grounded parts 400 can pass through grounding pin ground connection, then, in 7 font grounded partss, this grounding pin is connected with the lower port of the vertical section of this 7 font grounded parts.
As another embodiment of the present invention, another part structural representation of a kind of cable grounding device shown in composition graphs 3, above-mentioned grounded parts 400 specifically can comprise:
Insulation box 410;
Be arranged at least one Male head connector 420 (Fig. 3 is described for 3 Male head connectors) on described insulation box, and the binding post of the link of described Male head connector 420 and described ring main unit is suitable, the other end draws earth connection;
The multiplex grounding head 430 be connected with described earth connection.
In actual applications, when grounded parts 400 includes multiple Male head connector, the arrangement mode of described multiple Male head connector is the side-by-side configuration having certain intervals each other, wherein, this interval can be determined according to actual needs, and the present invention does not do concrete restriction to this.
Optionally, this Male head connector 420 and insulation box 410 are by being threaded, or directly welding, and the present invention does not do concrete restriction to this.
In addition, conveniently maintainer determines that whether this grounded parts ground connection is normal, can arrange indicating circuit at this Male head connector 420 outermost layer.
In the present embodiment, this indicating circuit can comprise: indicator light, and the travel switch be connected with this indicator light, battery and cable connecting terminal effectively block, and when after ground connection, travel switch will close, then indicator light and battery are connected and luminous.It should be noted that, this indicating circuit is not limited thereto, as long as effectively can indicate whether successfully that the circuit of ground connection all belongs to scope.
Wherein, the structural representation of the multiplex grounding head of grounded parts of a kind of cable grounding device as shown in Figure 4, this multiplex grounding head 430 can comprise: nut joint, U-joint and earth terminal etc.
It should be noted that, except the structure of the grounded parts of foregoing description, other mode ground connection can also be adopted, as passed through a conduction contiguous block and cable crossover sub 300 grafting, a grounding pin is connected in one end of this conduction contiguous block, in order to easy to operate and ensure maintainer's personal safety, can at this conduction contiguous block surface parcel insulating case.Certainly, can arrange an insulating bar be connected with this conduction contiguous block, realize this conduction contiguous block and cable crossover sub 300 plugs, the present invention does not do concrete restriction to this.
In sum, in embodiments of the present invention, when needs overhaul ring main unit, after cable is inserted from the lower port of T-shaped joint of cable, by the fixed connecting part arranged in this T-shaped joint of cable horizontal segment, this cable connecting terminal is fixed, and the binding post of ring main unit horizontal segment one end from this T-shaped joint of cable is inserted and is connected with this fixed connecting part, and the other end of this fixed connecting part is connected with grounded parts by the cable crossover sub of grafting, thus the ground connection operation achieved before equipment and cable line maintenance, installation process is simple, solve in prior art because of no ground disconnecting link, and increase maintenance difficulty and need large-area power-cuts, and affect the technical problem of looped network station power supply reliability, improve service work efficiency, and, this cable crossover sub is built-in with arc-suppression circuit, electric arc is produced when effectively prevent cable connecting terminal plug, ensure that the safety of maintainer.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a cable grounding device, is characterized in that, described device comprises:
T-shaped joint of cable, wherein, the binding post of the pluggable ring main unit in horizontal segment one end of described T-shaped joint of cable;
Be arranged on the fixed connecting part of described T-shaped joint of cable horizontal segment inside, for the fixing cable connecting terminal inserting described T-shaped joint of cable inside from the lower port of described T-shaped joint of cable, and when the binding post of described ring main unit inserts described T-shaped joint of cable, one end is connected with the binding post of described ring main unit;
Cable crossover sub that the is rear and other end grafting of described fixed connecting part is inserted from the horizontal segment other end of described T-shaped joint of cable in one end, and described cable crossover sub is built-in with arc-suppression circuit;
The other end grafting of one end and described cable crossover sub, the grounded parts of other end ground connection.
2. device according to claim 1, is characterized in that, described device also comprises:
When described cable crossover sub is not with described grounded parts grafting, be plugged on the insulating protective cover on the sleeve pipe of described cable crossover sub.
3. device according to claim 2, is characterized in that, described fixed connecting part is specially connecting bolt, and described connecting bolt one end is provided with screw thread, then described connecting bolt is connected with the binding post of described ring main unit by described screw thread.
4. device according to claim 3, is characterized in that, described grounded parts is specially 7 font grounded partss, and wherein, the horizontal segment of described 7 font grounded partss is plugged on the sleeve pipe of described cable crossover sub, and the lower port of vertical section connects earth connection.
5. device according to claim 4, is characterized in that, described device also comprises:
The grounding pin be connected with the lower port of the vertical section of described 7 font grounded parts.
6. device according to claim 1 and 2, is characterized in that, described grounded parts comprises:
Insulation box;
Be arranged at least one Male head connector on described insulation box, and the binding post of the link of described Male head connector and described ring main unit is suitable, the other end draws earth connection;
The multiplex grounding head be connected with described earth connection.
7. device according to claim 6, is characterized in that, when described grounded parts includes multiple Male head connector, the arrangement mode of described multiple Male head connector is the side-by-side configuration having certain intervals each other.
8. device according to claim 7, is characterized in that, described Male head connector outermost layer is provided with indicating circuit, whether is normally used to indicate ground connection.
9. device according to claim 7, is characterized in that, described multiplex grounding head comprises: nut joint, U-joint and earth terminal.
10. device according to claim 1 and 2, is characterized in that, described grounded parts comprises:
With the conduction contiguous block of described cable crossover sub grafting;
Be wrapped in the insulating case on described conduction contiguous block surface;
The grounding pin be connected with described conduction contiguous block one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027631.3A CN105428841A (en) | 2015-12-31 | 2015-12-31 | Cable grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027631.3A CN105428841A (en) | 2015-12-31 | 2015-12-31 | Cable grounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428841A true CN105428841A (en) | 2016-03-23 |
Family
ID=55506870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511027631.3A Pending CN105428841A (en) | 2015-12-31 | 2015-12-31 | Cable grounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428841A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107918083A (en) * | 2017-10-11 | 2018-04-17 | 广东电网有限责任公司清远供电局 | A kind of cable testing auxiliary device |
| CN108199203A (en) * | 2018-03-23 | 2018-06-22 | 深圳市光辉电器实业有限公司 | A kind of cable connector connector for being used for wind-powered electricity generation or photovoltaic apparatus |
| CN109103695A (en) * | 2018-08-15 | 2018-12-28 | 安费诺精密连接器(深圳)有限公司 | Electric connector and its movable inserted terminal mould group |
| CN111342282A (en) * | 2020-03-02 | 2020-06-26 | 国网湖北省电力有限公司宜昌供电公司 | Built-in bolt cable switching device |
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| CN103457053A (en) * | 2013-09-22 | 2013-12-18 | 国家电网公司 | Grounding device for maintenance of box-type transformer |
| CN204481275U (en) * | 2015-04-22 | 2015-07-15 | 国家电网公司 | The charged bridge piece of European cable branch box |
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| US6416338B1 (en) * | 2001-03-13 | 2002-07-09 | Hubbell Incorporated | Electrical connector with dual action piston |
| US20060035498A1 (en) * | 2002-05-16 | 2006-02-16 | Homac Mfg. Company | Enhanced separable connector with thermoplastic member and related methods |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107918083A (en) * | 2017-10-11 | 2018-04-17 | 广东电网有限责任公司清远供电局 | A kind of cable testing auxiliary device |
| CN108199203A (en) * | 2018-03-23 | 2018-06-22 | 深圳市光辉电器实业有限公司 | A kind of cable connector connector for being used for wind-powered electricity generation or photovoltaic apparatus |
| CN109103695A (en) * | 2018-08-15 | 2018-12-28 | 安费诺精密连接器(深圳)有限公司 | Electric connector and its movable inserted terminal mould group |
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| CN111342282A (en) * | 2020-03-02 | 2020-06-26 | 国网湖北省电力有限公司宜昌供电公司 | Built-in bolt cable switching device |
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Application publication date: 20160323 |
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