CN103050892A - Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit - Google Patents
Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit Download PDFInfo
- Publication number
- CN103050892A CN103050892A CN201210586643XA CN201210586643A CN103050892A CN 103050892 A CN103050892 A CN 103050892A CN 201210586643X A CN201210586643X A CN 201210586643XA CN 201210586643 A CN201210586643 A CN 201210586643A CN 103050892 A CN103050892 A CN 103050892A
- Authority
- CN
- China
- Prior art keywords
- cable
- european
- main unit
- ring main
- flexible cable
- 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
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The invention discloses an uninterruptible-operated bypass connection device applied between a European ring main unit and an American type ring main unit. The bypass connection device is arranged between the European ring main unit and the American type ring main unit, and comprises a first flexible cable connecting device, a bypass switch and a second flexible cable connecting device which are sequentially connected. A European cable terminal is formed by a T-shaped sleeve pipe and a cable wiring terminal which can be separated, and a cable with the cable wiring terminal is firstly led in through an entrance hole of the European ring main unit, and is then inserted in through a lower end port of a vertical pipe part of the T-shaped sleeve pipe, so that the connection of the European cable terminal and a European cable sleeve pipe is convenient. According to the device, the characteristic that a flexible cable shielded wire is all connected is utilized, an earth connection point is led to a bypass switch from the cable terminal, and a ground wire has no need to be erected additionally. The flexible cable connecting device has a simple structure and is convenient to use, the operation range is reduced, uninterruptible-operated overhaul operation is convenient, and the reliability of supplying power to the wire is improved.
Description
Technical field
The present invention relates to a kind of bypass connecting device for uninterrupted operation between European and American ring main unit.
Background technology
When underground cable needed repairing unusually between two ring main units, after taking ground to lay bypass connecting device and carrying out safety prevention measure, replacing underground cable by bypass connecting device was the ring main unit power supply, reaches the purpose of (the few power failure) maintenance that do not have a power failure.
Bypass connecting device is mainly by by-pass switch, and an end is provided with the cable termination that joins with the cable sleeve of ring main unit, the flexible cable that the other end links to each other with by-pass switch forms.
At present, the cable sleeve that is positioned at European ring main unit adopts all insulation, totally-enclosed, hermetic cable termination more, and this cable termination can't separate with the cable that is attached thereto.
When laying the bypass connecting device operation, because the space in European looped network cabinet wire hole is less, and the volume of the cable termination that is integrated with bypass connecting device sealing is larger, can't enter European ring main unit by entrance hole smoothly, the difficulty that causes bypass connecting device to be connected with European ring main unit increases, often enlarge job area because implementing effective ring main unit with being connected of bypass connecting device, make troubles for the service without power-off operation.
Simultaneously, the ground connection of bypass connecting device mainly is to realize by the earth connection of being located on the cable termination metallic shield shell, join with ground, but, because bypass connecting device mainly is reply breakdown repair, defect processing, need safety, quick and easy construction, and such earthing mode has increased engineering time and difficulty so that also need to set up in addition earth connection when laying bypass connecting device, makes troubles for the service without power-off operation.
Summary of the invention
Purpose of the present invention provides a kind of bypass connecting device that is used for uninterrupted operation between European and American ring main unit simple in structure, easy to use exactly in order to address the above problem.
The object of the present invention is achieved like this:
A kind of bypass connecting device for uninterrupted operation between European and American ring main unit of the present invention, this bypass connecting device is located between European ring main unit and the American ring main unit, comprise the first connecting device for flexible cable, the by-pass switch of the second connecting device for flexible cable and the earthing of casing, described the first connecting device for flexible cable one end is connected with described European ring main unit, the other end is connected with described by-pass switch, described the second connecting device for flexible cable one end is connected with described American ring main unit, the other end is connected with described by-pass switch, European cable termination and plug-in snap joint that described the first connecting device for flexible cable comprises flexible cable and is located at respectively these flexible cable two ends, American cable termination and plug-in snap joint that described the second connecting device for flexible cable comprises flexible cable and is located at respectively these flexible cable two ends, described flexible cable comprises sheath from outside to inside, the tinned copper wire screen, sheath and tinned copper conductor, described European cable termination is plugged on the European cable sleeve of described European ring main unit, described European cable sleeve comprises pedestal and is located at the bolt of pedestal front end, described American cable termination is plugged on the American cable sleeve of described American ring main unit, described plug-in snap joint is plugged on the inlet-outlet sleeve of described by-pass switch, wherein
Described European cable termination comprises T-shaped sleeve pipe, is located at cable connecting terminal and the insulator seal plug of described flexible cable one end, described T-shaped sleeve pipe comprises transverse pipe section and the vertical duct section that is interconnected, the pedestal of described cable sleeve is plugged in the left side of described transverse pipe section, and place to described bolt transverse horizontal described transverse pipe section, described cable connecting terminal is inserted and is socketed on the described bolt by the lower port of described vertical duct section, described insulator seal plug is plugged in the right side of described transverse pipe section, and the front end of this insulator seal plug and described bolt is spirally connected;
Described American cable termination comprises the elbow molded cannula, is located at cable crimp type terminal and the plug bar of described flexible cable one end, described cable crimp type terminal is inserted by the lower port of described elbow molded cannula, described plug bar is inserted by the upper port of described elbow molded cannula and the one end is fixed on the described cable crimp type terminal, and the other end protrudes from the upper port of described elbow molded cannula;
Described plug-in snap joint comprises the glue core, be sheathed on metal shell and the center pin in the described glue core outside, described glue core comprise by through hole be interconnected upper, lower chamber, and the internal diameter of described through hole is all less than upper, the internal diameter of lower chamber, described center pin comprises contact pin section and wire connecting portion, and the external diameter of described wire connecting portion is greater than the internal diameter of described through hole, described contact pin section inserts and places in the described upper cavity from the lower port of described through hole, described wire connecting portion is sticked in the lower port place of described through hole and places in the described lower chamber, the tinned copper conductor of described flexible cable one end is plugged in the described wire connecting portion, and the tinned copper wire screen of described flexible cable is located between described glue core and the metal shell.
Above-mentioned a kind of bypass connecting device for uninterrupted operation between European and American ring main unit, wherein, described plug bar comprises end to end arc extinguishing bar and conducting rod, described cable crimp type terminal comprises wire connecting portion and connecting portion, the tinned copper conductor of described flexible cable one end is plugged in the described wire connecting portion, one end of described connecting portion and described conducting rod is spirally connected, and a distal process of described arc extinguishing bar is for the upper port of described elbow molded cannula.
Cable termination among the present invention is comprised of separable T-shaped sleeve pipe and cable connecting terminal, during construction, to from the entrance hole of European ring main unit, introduce with the cable of cable connecting terminal first, again its lower port from T-shaped sleeve pipe vertical duct section is inserted, greatly facilitated cable termination and be connected the connection of ring main unit cable sleeve.
Simultaneously, the characteristic that the present invention utilizes the flexible cable shielding conductor to be communicated with completely, earth point is guided to the by-pass switch place from cable termination, because by-pass switch itself is ground connection, therefore need not to set up in addition earth connection, be convenient to bypass connecting device construction and service without power-off operation, also be applicable to simultaneously the less situation in ring main unit space, greatly improve the line powering reliability.
This shows that bypass connecting device of the present invention is simple in structure, easy to use, has reduced job area, be convenient to the service without power-off operation, improve the line powering reliability.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the first connecting device for flexible cable among the present invention;
Fig. 3 is the structural representation of the second connecting device for flexible cable among the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
See also Fig. 1, there is shown the bypass connecting device that the present invention is used for uninterrupted operation between European and American ring main unit, this bypass connecting device is located between European ring main unit 1 and the American ring main unit 5, the by-pass switch 3 that comprises the first connecting device for flexible cable 6, the second connecting device for flexible cable 7 and the earthing of casing, the first connecting device for flexible cable 6 one ends are connected with European ring main unit 1, the other end is connected with by-pass switch 3, the second connecting device for flexible cable 7 one ends are connected with American ring main unit 5, and the other end is connected 3 with by-pass switch.
See also Fig. 2, there is shown the first connecting device for flexible cable, the first connecting device for flexible cable 6 comprises European cable termination, flexible cable 9 and plug-in snap joint 2, flexible cable 9 comprises sheath 94, tinned copper wire screen 93, sheath 92 and tinned copper conductor 91 from outside to inside, European cable termination is plugged on the European cable sleeve of European ring main unit 1, European cable sleeve comprises pedestal 11 and is located at the bolt 12 of pedestal 11 front ends that plug-in snap joint 2 is plugged on the inlet-outlet sleeve 31 of by-pass switch 3;
European cable termination comprises T-shaped sleeve pipe 4, is located at cable connecting terminal 44 and the insulator seal plug 45 of flexible cable 9 one ends, T-shaped sleeve pipe 4 comprises transverse pipe section 41 and the vertical duct section 42 that is interconnected, and is square opening 43 at the inner chamber of the intersection of transverse pipe section 41 and vertical duct section 42; The pedestal 11 of European cable sleeve is plugged in the left side of transverse pipe section 41, and bolt 12 transverse horizontal place transverse pipe section 41; Cable connecting terminal 44 is inserted by the lower port of vertical duct section 42, and places in the square opening 43, and cable connecting terminal 44 is socketed on the bolt 12; Insulator seal plug 45 is plugged in the right side of transverse pipe section 41, and the end face of this insulator seal plug 45 is provided with the internal thread hole 46 that is complementary with bolt 12 external screw threads, and the front end of bolt 12 is rotatably connected in the internal thread hole 46;
Plug-in snap joint 2 comprises glue core 21, be sheathed on metal shell 22 and the center pin 23 in glue core 21 outsides, glue core 21 comprises upper cavity 211 and the lower chamber 212 that is interconnected by through hole 213, and the internal diameter of through hole 213 is respectively less than the internal diameter of upper cavity 211 and lower chamber 212, center pin 23 comprises contact pin section 231 and wire connecting portion 232, and the external diameter of wire connecting portion 232 is greater than the internal diameter of through hole 213, contact pin section 231 inserts and places in the upper cavity 211 from the lower port of through hole 213, wire connecting portion 232 is sticked in the lower port place of through hole 213 and places in the lower chamber 212, the tinned copper conductor 91 of flexible cable 9 is plugged in the wire connecting portion 232, and the tinned copper wire screen 93 of flexible cable 9 is located between glue core 21 and the metal shell 22, the inlet-outlet sleeve 31 of by-pass switch 3 comprises inner core 312 and the metallic sheath 311 of being located at outside the inner core 312, contact pin section 231 is plugged in the inner core 312, metallic sheath 311 is embedded between glue core 21 and the metal shell 22, metal-coating 311 links to each other with the shell of by-pass switch 3, and the earthing of casing of by-pass switch 3.
See also Fig. 3, there is shown the second connecting device for flexible cable, the second connecting device for flexible cable 7, comprise American cable termination, flexible cable 9 and plug-in snap joint 2, American cable termination is plugged on the American cable sleeve of American ring main unit 5, plug-in snap joint 2 is plugged on the inlet-outlet sleeve 31 of by-pass switch 3, wherein identical in flexible cable 9 and plug-in snap joint 2 and the first connecting device for flexible cable 6;
American cable termination comprises elbow molded cannula 81, cable crimp type terminal and plug bar, the cable crimp type terminal comprises wire connecting portion 83 and connecting portion 82, the tinned copper conductor 91 of flexible cable 9 one ends is plugged in the wire connecting portion 83, the cable crimp type terminal is inserted by the lower port of elbow molded cannula 81, the plug bar comprises end to end arc extinguishing bar 85 and conducting rod 84, the plug bar is inserted by the upper port of elbow molded cannula 81, and the right part of conducting rod 84 and connecting portion 82 are spirally connected, and the left part of arc extinguishing bar 82 protrudes from the upper port of elbow molded cannula 81.
When the European cable termination of the first connecting device for flexible cable 6 is connected with European ring main unit 1, need to carry out following operation: from the entrance hole of European ring main unit 1, the introducing of cable connecting terminal 44 that will connect first flexible cable 9, then its lower port from T-shaped sleeve pipe 4 vertical duct sections 42 is inserted, so that cable connecting terminal 44 is positioned at square opening 43, be plugged on the pedestal 11 of American cable sleeve at the left side port with T-shaped sleeve pipe 4 transverse pipe sections 41, so that the bolt 12 of pedestal 11 front ends is set in cable connecting terminal 44 and is positioned at transverse pipe section 41, at last insulator seal plug 45 is plugged in the right side port of transverse pipe section 41, and the front end that makes bolt 12 is rotatably connected in the internal thread hole 46, namely finished thus being connected of European cable sleeve of European cable termination and European ring main unit 3 among the present invention.
And when the American cable termination of the second connecting device for flexible cable 7 is connected with American ring main unit 5, only needs American cable termination is plugged on the American cable sleeve of American ring main unit 5 and get final product.
Because the tinned copper wire shielding conductor 93 of flexible cable 9 is to be communicated with completely, therefore can with earth point from flexible cable 9 European/American cable termination end guides on the shell of by-pass switch 3 by the metal shell 22 of plug-in snap joint 2 and the metallic sheath 311 of inlet-outlet sleeve 31, and the shell of by-pass switch 3 itself is ground connection, so just need not to set up in addition earth connection, be convenient to connection construction and the service without power-off operation of bypass connecting device.
Above embodiment is only for explanation the present invention's, but not limitation of the present invention, person skilled in the relevant technique, in the situation that does not break away from the spirit and scope of the present invention, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1. bypass connecting device that is used for uninterrupted operation between European and American ring main unit, this bypass connecting device is located between European ring main unit and the American ring main unit, comprise the first connecting device for flexible cable, the by-pass switch of the second connecting device for flexible cable and the earthing of casing, described the first connecting device for flexible cable one end is connected with described European ring main unit, the other end is connected with described by-pass switch, described the second connecting device for flexible cable one end is connected with described American ring main unit, the other end is connected with described by-pass switch, European cable termination and plug-in snap joint that described the first connecting device for flexible cable comprises flexible cable and is located at respectively these flexible cable two ends, American cable termination and plug-in snap joint that described the second connecting device for flexible cable comprises flexible cable and is located at respectively these flexible cable two ends, described flexible cable comprises sheath from outside to inside, the tinned copper wire screen, sheath and tinned copper conductor, described European cable termination is plugged on the European cable sleeve of described European ring main unit, described European cable sleeve comprises pedestal and is located at the bolt of pedestal front end, described American cable termination is plugged on the American cable sleeve of described American ring main unit, described plug-in snap joint is plugged on the inlet-outlet sleeve of described by-pass switch, it is characterized in that
Described European cable termination comprises T-shaped sleeve pipe, is located at cable connecting terminal and the insulator seal plug of described flexible cable one end, described T-shaped sleeve pipe comprises transverse pipe section and the vertical duct section that is interconnected, the pedestal of described cable sleeve is plugged in the left side of described transverse pipe section, and place to described bolt transverse horizontal described transverse pipe section, described cable connecting terminal is inserted and is socketed on the described bolt by the lower port of described vertical duct section, described insulator seal plug is plugged in the right side of described transverse pipe section, and the front end of this insulator seal plug and described bolt is spirally connected;
Described American cable termination comprises the elbow molded cannula, is located at cable crimp type terminal and the plug bar of described flexible cable one end, described cable crimp type terminal is inserted by the lower port of described elbow molded cannula, described plug bar is inserted by the upper port of described elbow molded cannula and the one end is fixed on the described cable crimp type terminal, and the other end protrudes from the upper port of described elbow molded cannula;
Described plug-in snap joint comprises the glue core, be sheathed on metal shell and the center pin in the described glue core outside, described glue core comprise by through hole be interconnected upper, lower chamber, and the internal diameter of described through hole is all less than upper, the internal diameter of lower chamber, described center pin comprises contact pin section and wire connecting portion, and the external diameter of described wire connecting portion is greater than the internal diameter of described through hole, described contact pin section inserts and places in the described upper cavity from the lower port of described through hole, described wire connecting portion is sticked in the lower port place of described through hole and places in the described lower chamber, the tinned copper conductor of described flexible cable one end is plugged in the described wire connecting portion, and the tinned copper wire screen of described flexible cable is located between described glue core and the metal shell.
2. a kind of bypass connecting device for uninterrupted operation between European and American ring main unit as claimed in claim 1, it is characterized in that, described plug bar comprises end to end arc extinguishing bar and conducting rod, described cable crimp type terminal comprises wire connecting portion and connecting portion, the tinned copper conductor of described flexible cable one end is plugged in the described wire connecting portion, one end of described connecting portion and described conducting rod is spirally connected, and a distal process of described arc extinguishing bar is for the upper port of described elbow molded cannula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586643XA CN103050892A (en) | 2012-12-28 | 2012-12-28 | Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586643XA CN103050892A (en) | 2012-12-28 | 2012-12-28 | Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103050892A true CN103050892A (en) | 2013-04-17 |
Family
ID=48063444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210586643XA Pending CN103050892A (en) | 2012-12-28 | 2012-12-28 | Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050892A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812041A (en) * | 2014-02-21 | 2014-05-21 | 国网湖南省电力公司带电作业中心 | Method for overhauling ring main unit of 10kV cable circuit without switching power supply off |
| CN106159758A (en) * | 2016-07-07 | 2016-11-23 | 国网江苏省电力公司淮安供电公司 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
| CN106711817A (en) * | 2015-08-23 | 2017-05-24 | 曹政 | Device for connecting European style cable head and American style ring network cabinet |
| CN112736789A (en) * | 2020-12-23 | 2021-04-30 | 广东电网有限责任公司茂名供电局 | Bypass drainage device for low-voltage line of distribution network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7144272B1 (en) * | 2005-11-14 | 2006-12-05 | Corning Gilbert Inc. | Coaxial cable connector with threaded outer body |
| CN201332187Y (en) * | 2008-12-04 | 2009-10-21 | 温州天诚电力设备有限公司 | Current-limiting cable connector |
| CN201450191U (en) * | 2009-05-27 | 2010-05-05 | 上海市电力公司 | Straight-through plugging and unplugging joint of cable |
| CN202134721U (en) * | 2011-05-23 | 2012-02-01 | 安迪普科技(深圳)有限公司 | T type connecting device for flexible cable |
| CN203103760U (en) * | 2012-12-28 | 2013-07-31 | 上海市电力公司 | A bypass connecting device used between an uninterruptedly-operating European ring main unit and an uninterruptedly-operating American ring main unit |
-
2012
- 2012-12-28 CN CN201210586643XA patent/CN103050892A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7144272B1 (en) * | 2005-11-14 | 2006-12-05 | Corning Gilbert Inc. | Coaxial cable connector with threaded outer body |
| CN201332187Y (en) * | 2008-12-04 | 2009-10-21 | 温州天诚电力设备有限公司 | Current-limiting cable connector |
| CN201450191U (en) * | 2009-05-27 | 2010-05-05 | 上海市电力公司 | Straight-through plugging and unplugging joint of cable |
| CN202134721U (en) * | 2011-05-23 | 2012-02-01 | 安迪普科技(深圳)有限公司 | T type connecting device for flexible cable |
| CN203103760U (en) * | 2012-12-28 | 2013-07-31 | 上海市电力公司 | A bypass connecting device used between an uninterruptedly-operating European ring main unit and an uninterruptedly-operating American ring main unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812041A (en) * | 2014-02-21 | 2014-05-21 | 国网湖南省电力公司带电作业中心 | Method for overhauling ring main unit of 10kV cable circuit without switching power supply off |
| CN106711817A (en) * | 2015-08-23 | 2017-05-24 | 曹政 | Device for connecting European style cable head and American style ring network cabinet |
| CN106159758A (en) * | 2016-07-07 | 2016-11-23 | 国网江苏省电力公司淮安供电公司 | Ring main unit does not have a power failure and accesses the auxiliary device of cable |
| CN106159758B (en) * | 2016-07-07 | 2018-03-09 | 国网江苏省电力公司淮安供电公司 | Ring main unit, which does not have a power failure, accesses the servicing unit of cable |
| CN112736789A (en) * | 2020-12-23 | 2021-04-30 | 广东电网有限责任公司茂名供电局 | Bypass drainage device for low-voltage line of distribution network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201466245U (en) | Cable plug-pull head featuring convenient operation | |
| CN103078268A (en) | Uninterrupted power overhauling method of 10kV cables between two annular net cabinets | |
| CN103050892A (en) | Uninterruptible-operated bypass connection device applied between European ring main unit and American type ring main unit | |
| CN103036149A (en) | Non-power-outage operated bypass connection device used between two European-style ring main units | |
| CN103036193A (en) | Flexible cable connection device for American ring main unit | |
| CN103208770B (en) | 110kV cable intermediate head accessory and attaching method thereof | |
| CN103066548A (en) | Flexible cable connection device for Europe-type annular net cabinet | |
| CN105428841A (en) | Cable grounding device | |
| CN203103899U (en) | A flexible cable connecting device used for a European ring main unit | |
| CN202340094U (en) | Pluggable prefabricated cable terminal grounding device | |
| CN203103760U (en) | A bypass connecting device used between an uninterruptedly-operating European ring main unit and an uninterruptedly-operating American ring main unit | |
| CN205595543U (en) | Soft high -pressure connection bus | |
| CN205811089U (en) | A kind of attachment means of cable accessory | |
| CN103457053B (en) | A kind of box type transformer inspection earthing device | |
| CN203103772U (en) | A grounding structure used for a bypass cable | |
| CN201118108Y (en) | High-voltage cable connector earthing element | |
| CN103036191A (en) | Cable terminal for European-style branch box and ring main unit | |
| CN203103896U (en) | A flexible cable connecting device used for a ring main unit | |
| CN204792665U (en) | Solid insulation looped netowrk is fuse insulating cylinder for cabinet | |
| CN203103759U (en) | A bypass connecting device used between two uninterruptedly-operating ring main units | |
| CN203839911U (en) | 12kV European front connector | |
| CN203871732U (en) | Special-purpose ground wire for built-in switch cabinet | |
| CN204089143U (en) | A kind of mineral cable list core intermediate connector | |
| CN207366622U (en) | Differential protection cable socket and the Current Mutual Inductance circuit protection device being made from it | |
| CN203466547U (en) | Wire to wire connector for cable and cable assembly with wire to wire connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |