CN110661229B - Single-core cable transposition connecting device - Google Patents
Single-core cable transposition connecting device Download PDFInfo
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- CN110661229B CN110661229B CN201910875537.5A CN201910875537A CN110661229B CN 110661229 B CN110661229 B CN 110661229B CN 201910875537 A CN201910875537 A CN 201910875537A CN 110661229 B CN110661229 B CN 110661229B
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- upstream
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- 230000017105 transposition Effects 0.000 title claims abstract description 49
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 117
- 229910052751 metal Inorganic materials 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 35
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 239000012212 insulator Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/10—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes
- H02G15/16—Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes structurally associated with support for line-connecting terminals within the box
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- Cable Accessories (AREA)
Abstract
The application relates to a single core cable transposition connecting device. The single-core cable transposition connecting device comprises a box body, an upstream connecting device group, a downstream connecting device group, a protecting device group and a third connecting device. An upstream connection device is electrically connected to a cable metal sheath upstream of the transmission line via a first monocable. A downstream connection device is electrically connected to a cable metal sheath downstream of the transmission line via a second monocable. The upstream set of connecting devices is cross-interconnected with the downstream set of connecting devices. When the connection of the upstream and downstream cable metal sheaths is wrong, the upstream and downstream cable metal sheaths are correctly connected by changing the connection relation of the first single-core cable and the upstream connecting device or changing the connection relation of the second single-core cable and the downstream connecting device. The single-core cable transposition connecting device does not need to replace a cable or open a connecting box. The single-core cable transposition connecting device simplifies maintenance steps and operation procedures and improves maintenance efficiency.
Description
Technical Field
The application relates to the technical field of electric power, in particular to a single-core cable transposition connecting device.
Background
The urban power grid generally adopts high-voltage single-core cables to transmit power, when a cable core has current, an induced voltage is generated on a cable metal sheath, and the larger the cable load is, the longer the line is, and the higher the induced voltage is. If the three-phase cable loop is completely symmetrical and the current in the three-phase loop is also completely symmetrical, the voltages induced in the aluminum sheath of the three-phase cable are completely symmetrical, and the vector sum of the voltages is zero. By utilizing the principle, a three-phase metal sheath cross connection is arranged at the joint position of a longer cable line, the induced voltage of the whole cross interconnection section is smaller through two times of cross connection, and at the insulation joint position of the cross interconnection section, a coaxial cable is connected with the metal sheaths at the two sides of the joint and is connected with the metal sheaths through a cross interconnection box in a transposition mode at present. If the inner core and the outer core of the coaxial cable are connected with the metal sheaths on the two sides of the insulating joint in a wrong way, the coaxial cable needs to be connected again, or the internal connection of the cross interconnection box needs to be changed. The operation is complex and the maintenance efficiency is low.
Disclosure of Invention
Therefore, the single-core cable transposition connecting device is needed to be provided for solving the problems that the existing cable cross interconnection box is complex in operation and low in maintenance efficiency.
A single-core cable transposition connecting device is used for enabling cable metal sheaths of long transmission cables in upstream and downstream to be crossed and interconnected. The box body is enclosed to form a first space.
The upstream connecting device group is received in the first space. The upstream connecting device group comprises an A-phase upstream connecting device, a B-phase upstream connecting device and a C-phase upstream connecting device. The phase A upstream connecting device, the phase B upstream connecting device and the phase C upstream connecting device are electrically connected with the upstream cable metal protective sleeve of the corresponding phase through a first single-core cable respectively.
The downstream connecting device group is accommodated in the first space. The downstream connecting device group comprises a phase A downstream connecting device, a phase B downstream connecting device and a phase C downstream connecting device. And the phase A downstream connecting device, the phase B downstream connecting device and the phase C downstream connecting device are electrically connected with the downstream cable metal sheath of the corresponding phase through a second single-core cable respectively.
The phase A upstream connecting device is electrically connected with the phase B downstream connecting device. The phase B upstream connecting device is electrically connected with the phase C downstream connecting device. The phase C upstream connecting device is electrically connected with the phase A downstream connecting device.
The protection device group includes a plurality of protection devices. The plurality of protection devices are fixedly accommodated in the first space. The protection devices are respectively and correspondingly electrically connected with the phase A upstream connecting device, the phase B upstream connecting device and the phase C upstream connecting device one by one, and the protection devices are respectively and correspondingly electrically connected with the phase A downstream connecting device, the phase B downstream connecting device and the phase C downstream connecting device one by one. The third connecting device is used for being connected with a grounding wire. The third connecting device is electrically connected with the protection device group.
In one embodiment, the single-core cable transposition connecting device further comprises a fixed connecting piece group. The fixed connecting piece group comprises an A-phase fixed connecting piece, a B-phase fixed connecting piece and a C-phase fixed connecting piece, one end of the A-phase fixed connecting piece is fixedly connected with the A-phase downstream connecting device, one end of the B-phase fixed connecting piece is fixedly connected with the B-phase downstream connecting device, and one end of the C-phase fixed connecting piece is fixedly connected with the C-phase downstream connecting device.
The other end of the A-phase fixed connecting piece, the other end of the B-phase fixed connecting piece and the other end of the C-phase fixed connecting piece are respectively and electrically connected with the plurality of protection devices in a one-to-one correspondence mode.
In one embodiment, the single-core cable transposition connecting device further comprises a cross-linking connecting piece group. The cross-linked connector group comprises a first cross-linked connector, a second cross-linked connector and a third cross-linked connector, the first cross-linked connector is electrically connected between the phase A upstream connector and the phase B fixed connector, the second cross-linked connector is electrically connected between the phase B upstream connector and the phase C fixed connector, and the third cross-linked connector is electrically connected between the phase C upstream connector and the phase A fixed connector.
In one embodiment, the phase a upstream connecting device includes a first fixed seat, a first sliding block and a first fastening bolt. The first fixing seat is fixed on the inner wall of the box body. The first fixed seat is electrically connected with one cross-linked connecting piece in the cross-linked connecting piece group. The first fixing seat is provided with a first wiring hole. The first slider is disposed in the first wiring hole. The first fastening bolt is arranged on the first fixed seat and abuts against the first sliding block. The first fastening bolt is used for pushing the first sliding block to compress.
In one embodiment, the phase a downstream connecting device includes a second fixed seat, a second sliding block and a second fastening bolt. The second fixing seat is fixed on the inner wall of the box body. The second fixed seat is electrically connected with one first connecting piece in the fixed connecting piece group. The second fixing seat is provided with a second wiring hole. The second slider is disposed in the second wiring hole. The second fastening bolt is arranged on the second fixed seat and abuts against the second sliding block. The second fastening bolt is used for pushing the second sliding block to compress tightly.
In one embodiment, the single-core cable transposition connecting device further comprises a first insulating plate. The first insulating plate is fixed on the inner wall of the box body. The upstream connecting device group is fixed to the first insulating plate.
In one embodiment, the single core cable transposition connecting device further comprises a second insulating plate. The second insulating plate is fixed on the inner wall of the box body. The downstream set of connection devices is secured to the second insulating plate.
In one embodiment, the single-core cable transposition connecting device further comprises a first connecting plate. The plurality of protection devices and the third connecting device are arranged on the first connecting plate, and the plurality of protection devices and the third connecting device are electrically connected with the first connecting plate.
In one embodiment, the single-core cable transposition connecting device further comprises a plurality of insulators. The plurality of insulators are fixedly connected between the first connecting plate and the inner wall of the box body, so that the box body is prevented from being electrified, and the safety of the single-core cable transposition connecting device is improved.
In one embodiment, the case includes a first group of junction blocks. The first wire tube group includes a plurality of first wire tubes. The first wiring pipes are fixedly connected with the box body, and the first wiring pipes are arranged in one-to-one correspondence with the phase A upstream connecting device, the phase B upstream connecting device and the phase C upstream connecting device. And the pipe orifice of one first wiring pipe is opposite to the first wiring hole. The cable metal sheath at the transmission upstream penetrates through the first wiring pipe through the first single-core cable and is clamped in the first wiring hole.
In one embodiment, the case includes a second group of junction tubes. The second wire tube group includes a plurality of second wire tubes. The second wiring pipes are fixedly connected with the box body, and the second wiring pipes are arranged in one-to-one correspondence with the A-phase downstream connecting device, the B-phase downstream connecting device and the C-phase downstream connecting device. And the pipe orifice of one second wiring pipe is opposite to the second wiring hole. And the cable metal sheath at the downstream of power transmission passes through the second wiring tube through the second single-core cable and is clamped in the second wiring hole.
The application provides single core cable transposition connecting device, including box, upstream connecting device group, low reaches connecting device group, protection device group and third connecting device. The upstream connecting device group in the single-core cable transposition connecting device comprises an A-phase upstream connecting device, a B-phase upstream connecting device and a C-phase upstream connecting device, and the A-phase upstream connecting device, the B-phase upstream connecting device and the C-phase upstream connecting device are electrically connected with one cable metal sheath on the transmission upstream through a first single-core cable respectively. And the phase A downstream connecting device, the phase B downstream connecting device and the phase C downstream connecting device are electrically connected with one cable metal sheath at the downstream of power transmission through one second single-core cable respectively. When the cable metal sheaths on the upstream and downstream sides are connected incorrectly, the cable metal sheaths on the upstream and downstream sides are connected correctly by changing the connection relation between the first single-core cable and the upstream connecting device or changing the connection relation between the second single-core cable and the downstream connecting device. The single-core cable transposition connecting device does not need to replace a cable or open a connecting box. The single-core cable transposition connecting device simplifies maintenance steps and operation procedures and improves maintenance efficiency.
Drawings
Fig. 1 is a structural diagram of the single core cable transposition connecting device provided in an embodiment of the present application;
fig. 2 is an internal structural view of the single core cable transposition connecting device provided in an embodiment of the present application;
fig. 3 is an exploded view of the single core cable transposition connecting device provided in an embodiment of the present application;
FIG. 4 is a top view of the housing provided in one embodiment of the present application.
Reference numerals:
single-core cable transposition connecting device 10
Cover 202
Handle 203
First junction block set 210
Upstream connection device group 30
Phase a upstream connection 310
First fixing seat 311
First slider 313
Phase B upstream connection 320
C-phase upstream connection device 330
First insulating plate 340
Downstream connecting device group 40
Phase a downstream connection device 410
Second fixing seat 411
Phase B downstream connection 420
C-phase downstream connection 430
Second insulating plate 440
Third connecting means 60
Fixed connecting piece group 70
Phase A fixed connector 710
B phase fixed connecting piece 720
C phase fixed connecting piece 730
Crosslinked connector set 80
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the embodiments disclosed below.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 and 2, the present invention provides a single-core cable transposition connecting device 10 for cross-connecting cable metal sheaths of long transmission cables upstream and downstream, and the single-core cable transposition connecting device 10 includes a box 20, an upstream connecting device group 30, a downstream connecting device group 40, a protective device group 50, and a third connecting device 60. The case 20 defines a first space 201.
The upstream connecting device group 30 is received in the first space 201. The upstream connection device group 30 includes a phase a upstream connection device 310, a phase B upstream connection device 320, and a phase C upstream connection device 330. The phase a upstream connecting device 310, the phase B upstream connecting device 320 and the phase C upstream connecting device 330 are electrically connected to the corresponding phase upstream cable metal sheath through a first single core cable 301.
The downstream connecting device group 40 is received in the first space 201. The downstream junction device group 40 includes a phase a downstream junction device 410, a phase B downstream junction device 420, and a phase C downstream junction device 430. The phase a downstream connecting device 410, the phase B downstream connecting device 420 and the phase C downstream connecting device 430 are electrically connected to the corresponding phase downstream cable metal sheath through a second single core cable 401, respectively.
The phase a upstream connection device 310 is electrically connected to the phase B downstream connection device 420. The phase B upstream connection means 320 is electrically connected to the phase C downstream connection means 430. The phase C upstream connection means 330 is electrically connected to the phase a downstream connection means 410.
The protection device group 50 includes a plurality of protection devices 510. The plurality of protection devices 510 are fixedly received in the first space 201. The protection devices 510 are electrically connected to the phase a upstream connection device 310, the phase B upstream connection device 320, and the phase C upstream connection device 330 in a one-to-one correspondence, and the protection devices 510 are electrically connected to the phase a downstream connection device 410, the phase B downstream connection device 420, and the phase C downstream connection device 430 in a one-to-one correspondence. The third connecting device 60 is used for connecting with a ground line 601. The third connecting device 60 is electrically connected to the protection device group 50.
The single core cable transposition connecting device 10 provided by the application comprises a box body 20, an upstream connecting device group 30, a downstream connecting device group 40, a protecting device group 50 and a third connecting device 60. The phase a upstream connecting device 310, the phase B upstream connecting device 320 and the phase C upstream connecting device 330 are electrically connected to one of the cable metal sheaths upstream of the power transmission through one of the first single core cables 301, respectively. The phase a downstream connecting means 410, the phase B downstream connecting means 420 and the phase C downstream connecting means 430 are electrically connected to one of the cable jackets downstream in the power transmission through one of the second monocable 401, respectively. When the cable sheaths of the upstream and downstream sides are connected incorrectly, the cable sheaths of the upstream and downstream sides are connected correctly by changing the connection relationship of the first single core cable 301 and the upstream connection device or by changing the connection relationship of the second single core cable 401 and the downstream connection device. The single-core cable transposition connecting device does not need to replace a cable or open a connecting box. The single-core cable transposition connecting device simplifies maintenance steps and operation procedures and improves maintenance efficiency.
Due to operator error, the metallic sheath of the phase a upstream cable is electrically connected to the phase B upstream connection means 320 via one of the first monocable 401. The metallic sheath of the phase B upstream cable is electrically connected to the phase a upstream connection means 310 through one of the first monocable 401. At this time, the upstream cable metal protective sleeve of the phase B is electrically connected with the downstream cable metal protective sleeve of the phase B, and the cross interconnection among the three-phase cable metal protective sleeves cannot be formed.
An operator only needs to connect the position of the first single-core cable 401 with the position of the first single-core cable 401 connected with the upstream cable metal protective sleeve of the phase B, so that the upstream connecting device 310 of the phase A is electrically connected with the downstream connecting device 420 of the phase B. The phase B upstream connection means 320 is electrically connected to the phase C downstream connection means 430. The phase C upstream connection device 330 is electrically connected to the phase a downstream connection device 410 to form a cross-connection between the three-phase cable metal sheaths to neutralize the induced voltage on the cable metal sheaths and reduce the power consumption of the transmission line. The single-core cable transposition connecting device 10 does not need to replace a cable or open a connecting box. The single-core cable transposition connecting device 10 simplifies maintenance steps and operation procedures and improves maintenance efficiency.
In one embodiment, the single-core cable transposition connecting device 10 further comprises a fixed connector set 70. The fixed connector group 70 includes an a-phase fixed connector 710, a B-phase fixed connector 720, and a C-phase fixed connector 730, wherein one end of the a-phase fixed connector 710 is fixedly connected to the a-phase downstream connector 410, one end of the B-phase fixed connector 720 is fixedly connected to the B-phase downstream connector 420, and one end of the C-phase fixed connector 730 is fixedly connected to the C-phase downstream connector 430.
The other end of the a-phase fixed connection member 710, the other end of the B-phase fixed connection member 720, and the other end of the C-phase fixed connection member 730 are electrically connected to the plurality of protection devices 510 in a one-to-one correspondence, respectively.
The phase a fixed connector 710, the phase B fixed connector 720 and the phase C fixed connector 730 are all made of conductive materials.
In one embodiment, the single core cable transposition connecting device 10 further comprises a cross-linking connector set 80. The cross-linked connector group 80 includes a first cross-linked connector 810, a second cross-linked connector 820 and a third cross-linked connector 830, the first cross-linked connector 810 is electrically connected between the phase a upstream connector 310 and the phase B fixed connector 720, the second cross-linked connector 820 is electrically connected between the phase B upstream connector 320 and the phase C fixed connector 730, and the third cross-linked connector 830 is electrically connected between the phase C upstream connector 330 and the phase a fixed connector 710. The first crosslink 810, the second crosslink 820, and the third crosslink 830 are all conductive materials.
In one embodiment, the phase a upstream connection device 310 includes a first fixed seat 311, a first slider 313 and a first fastening bolt 314. The first fixing seat 311 is fixed to an inner wall of the case 20. The first fixing seat 311 is electrically connected to one cross-link connector in the cross-link connector group 80. The first fixing base 311 is provided with a first wiring hole 312. The first slider 313 is disposed in the first wiring hole 312. The first fastening bolt 314 is disposed on the first fixing seat 311 and abuts against the first sliding block 313. The first fastening bolt 314 is used for pushing the first sliding block 313 to press.
In one embodiment, the phase a downstream connection device 410 includes a second fixed seat 411, a second sliding block 413, and a second fastening bolt 414. The second fixing seat 411 is fixed to an inner wall of the case 20. The second fixing seat 411 is electrically connected to one first connecting member of the fixing connecting member group 70. The second fixing seat 411 is provided with a second wiring hole 412. The second slider 413 is disposed in the second wiring hole 412. The second fastening bolt 414 is disposed on the second fixing seat 411 and abuts against the second slider 413. The second fastening bolt 414 is used for pushing the second slider 413 to press.
In one embodiment, the single core cable transposition connecting device 10 further comprises a first insulating plate 340. The first insulating plate 340 is fixed to an inner wall of the case 20. The upstream connecting device group 30 is fixed to the first insulating plate 340.
In one embodiment, the single core cable transposition connecting device 10 further comprises a second insulating plate 440. The second insulation plate 440 is fixed to the inner wall of the case 20. The downstream connecting means group 40 is fixed to the second insulating plate 440.
In one embodiment, the single core cable transposition connecting device 10 further comprises a first connecting plate 610. The plurality of protection devices 510 and the third connecting device 60 are disposed on the first connecting plate 610, and the plurality of protection devices 510 and the third connecting device 60 are electrically connected to the first connecting plate 610.
In one embodiment, the single core cable transposition connecting device 10 further comprises a plurality of insulators 620. The insulators 620 are fixedly connected between the first connecting plate 610 and the inner wall of the box body 20, so that the box body 20 is prevented from being electrified, and the safety of the single-core cable transposition connecting device 10 is improved.
In one embodiment, the case 20 includes a first group of junction blocks 210. The first wire barrel group 210 includes a plurality of first wire barrels 211. The plurality of first wire connecting pipes 211 are fixedly connected with the box body 20, and the plurality of first wire connecting pipes 211 are arranged in one-to-one correspondence with the phase a upstream connecting device 310, the phase B upstream connecting device 320 and the phase C upstream connecting device 330. An opening of one of the first wire barrel 211 faces the first wire hole 312. The cable metal sheath at the upstream of the power transmission passes through the first wire connecting tube 211 through the first single-core cable 301 and is clamped in the first wire connecting hole 312.
In one embodiment, the housing 20 includes a second set of wiring harnesses 220. The second wire tube group 220 includes a plurality of second wire tubes 221. The second wire connecting pipes 221 are fixedly connected to the box 20, and the second wire connecting pipes 221 are disposed in one-to-one correspondence with the phase a downstream connecting device 410, the phase B downstream connecting device 420, and the phase C downstream connecting device 430. An opening of one of the second wire barrel 221 faces the second wire hole 412. The cable metal sheath downstream of the power transmission is inserted through the second wire connecting tube 221 through the second single-core cable 401 and clamped in the second wire connecting hole 412.
In one embodiment, the first set of terminals 210 is arranged to form a first terminal row. The second terminal block set 220 is arranged to form a second terminal block row. The first wiring pipe row and the second wiring pipe row are arranged along the height direction of the box body 20 in a staggered mode, and operation is facilitated.
Referring to fig. 3, in an embodiment, the single core cable grounding device 10 further includes a cover 202. The cover 202 and the box 20 together form the first space 201.
In one embodiment, the housing 20 includes an opening with a flange structure disposed at the opening. The flange structure is provided with a plurality of bolt holes. The cover 202 is correspondingly provided with a plurality of threaded holes. The cover 202 is fixed to the case 20 by screwing a plurality of bolts into the corresponding bolt holes.
In one embodiment, the monocable grounding device 10 further comprises a sealing ring 204. A sealing groove is formed in the end face of the opening of the box body 20, and the sealing ring 204 is disposed in the sealing groove to seal a gap between the box body 20 and the cover body 202.
In one embodiment, the single core cable grounding device 10 further comprises a handle 203, and the handle 203 is disposed on the surface of the cover 202 away from the box body 20, so as to facilitate taking and placing of the single core cable grounding device 10.
Referring to fig. 4, in one embodiment, an insulator fixing member 205 is disposed at the bottom of the box 20. The insulator fixing member 205 is provided with a fixing hole, and one end of the insulator extends into the fixing hole.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875537.5A CN110661229B (en) | 2019-09-17 | 2019-09-17 | Single-core cable transposition connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875537.5A CN110661229B (en) | 2019-09-17 | 2019-09-17 | Single-core cable transposition connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110661229A CN110661229A (en) | 2020-01-07 |
| CN110661229B true CN110661229B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910875537.5A Active CN110661229B (en) | 2019-09-17 | 2019-09-17 | Single-core cable transposition connecting device |
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| CN (1) | CN110661229B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112510492A (en) * | 2020-11-30 | 2021-03-16 | 国网北京市电力公司 | Grounding box capable of switching grounding modes of high-voltage cable and electronic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202957567U (en) * | 2012-11-23 | 2013-05-29 | 保定鼎阳电力科技发展有限公司 | Anti-electric-shock intersecting interconnecting protection box |
| CN105322497A (en) * | 2015-12-10 | 2016-02-10 | 广东电网有限责任公司东莞供电局 | Multifunctional grounding box for high-voltage cable |
| CN207572943U (en) * | 2017-09-21 | 2018-07-03 | 长缆电工科技股份有限公司 | A kind of cross interconnected case of six line of three-phase with protector tally function |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2602796B1 (en) * | 2011-03-17 | 2016-11-23 | Furukawa Electric Co., Ltd. | Superconductor cable anchoring structure and superconductor cable line anchoring structure |
| JP6417600B2 (en) * | 2016-09-23 | 2018-11-07 | 本田技研工業株式会社 | Bus bar unit and bus bar unit manufacturing method |
| CN206864800U (en) * | 2017-06-27 | 2018-01-09 | 海南电网有限责任公司琼海供电局 | Digital display intelligent grounding box |
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2019
- 2019-09-17 CN CN201910875537.5A patent/CN110661229B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202957567U (en) * | 2012-11-23 | 2013-05-29 | 保定鼎阳电力科技发展有限公司 | Anti-electric-shock intersecting interconnecting protection box |
| CN105322497A (en) * | 2015-12-10 | 2016-02-10 | 广东电网有限责任公司东莞供电局 | Multifunctional grounding box for high-voltage cable |
| CN207572943U (en) * | 2017-09-21 | 2018-07-03 | 长缆电工科技股份有限公司 | A kind of cross interconnected case of six line of three-phase with protector tally function |
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| CN110661229A (en) | 2020-01-07 |
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