CN108232482A - Press earthing or grounding means and electric power tunnel - Google Patents
Press earthing or grounding means and electric power tunnel Download PDFInfo
- Publication number
- CN108232482A CN108232482A CN201810097267.5A CN201810097267A CN108232482A CN 108232482 A CN108232482 A CN 108232482A CN 201810097267 A CN201810097267 A CN 201810097267A CN 108232482 A CN108232482 A CN 108232482A
- Authority
- CN
- China
- Prior art keywords
- mounting hole
- connecting plate
- floor panel
- panel assembly
- grounding means
- 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.)
- Granted
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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
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/643—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for rigid cylindrical bodies
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- 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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
Abstract
Earthing or grounding means and electric power tunnel are pressed the present invention relates to a kind of, earthing or grounding means is pressed to crimp floor panel assembly including multiple.Crimping floor panel assembly is used for and madial wall supporting beam install in tunnel is corresponding one by one sets, and crimping floor panel assembly is connected in series with.The first end of crimping floor panel assembly is equipped with the first mounting hole, the second end of crimping floor panel assembly is equipped with the second mounting hole, and adjacent crimp passes through one of the second mounting hole interconnection that the first mounting hole of the crimping floor panel assembly crimps with another floor panel assembly between floor panel assembly by the first connector.Crimping floor panel assembly has the first connecting plate.First connecting plate is equipped with third mounting hole, and the first connecting plate is used to the 4th mounting hole of third mounting hole and supporting beam be passed through to be installed up to supporting beam by the second connector.Above-mentioned pressure earthing or grounding means can be convenient for rapidly being installed up to tunnel madial wall.
Description
Technical field
The present invention relates to electric power tunnel technical fields, and earthing or grounding means and electric power tunnel are pressed more particularly to a kind of.
Background technology
With city transmission of electricity demand it is increasing, urban land day is becoming tight, this allow for city transmission of electricity just rapidly by
Ground overhead power transmission switchs to the transmission of electricity of underground electric tunnel.Cable bearer in traditional electric power tunnel, which need to use, presses earthing or grounding means
It carries out effectively pressing connection and grounding.Common pressure earthing or grounding means includes multiple ground connection and flattens steel segment.It is multiple
Ground connection flattens steel segment and is longitudinally arranged and is welded on the metal components such as cable bearer along electric power tunnel, and ground connection flattens steel
Connection is welded to each other between segment, so that just can the cable bearer in electric power tunnel be pressed grounding.However, electric power tunnel
Narrow space is not easy to rapidly weld to install in electric power tunnel to press earthing or grounding means.
Invention content
Based on this, it is necessary to the defects of overcoming the prior art, a kind of crimping that Fast Installation can be convenient for operate is provided
Device and electric power tunnel.
Its technical solution is as follows：One kind presses earthing or grounding means, and floor panel assembly is crimped including multiple, described to crimp floor
Component is used for and madial wall supporting beam install in tunnel is corresponding one by one sets, and the floor panel assembly that crimps is connected in series with；It is described
The first end of crimping floor panel assembly is equipped with the first mounting hole, and the second end of the crimping floor panel assembly is equipped with the second installation
Hole, adjacent described crimp pass through one of the crimping floor panel assembly between floor panel assembly by the first connector
First mounting hole is connected with each other with crimping the second mounting hole of floor panel assembly another described；The crimping floor panel assembly tool
There is the first connecting plate, first connecting plate is equipped with third mounting hole, and first connecting plate is used to wear by the second connector
It crosses the third mounting hole and the 4th mounting hole of the supporting beam is installed up in the supporting beam.
A kind of electric power tunnel including the pressure earthing or grounding means, further includes prefabricated tunnel tube coupling, along the prefabricated tunnel
Multiple supporting beams that road tube coupling madial wall axial direction is spaced side by side, crimping floor panel assembly and the supporting beam phase one by one
It should set, the crimping floor panel assembly passes through the third mounting hole and the 4th mounting hole by second connector
It is installed up in the supporting beam.
Above-mentioned pressure earthing or grounding means and electric power tunnel are passed through one of by the first connector and crimp floor panel assembly
The first mounting hole the second mounting hole of floor panel assembly crimped with another be connected with each other adjacent crimping floor panel assembly,
And pass through third mounting hole and the 4th mounting hole that the first connecting plate is installed up in supporting beam by the second connector, without adopting
Connection is welded to each other between flattening steel segment with such as traditional ground connection and pressure grounding flat steel segment welding is arranged on supporting beam
On mounting means, press earthing or grounding means installation operation in tunnel more convenient, can be convenient for rapidly pressing earthing or grounding means
It is installed up to tunnel madial wall.In addition, traditional steel segment of flattening is generally only the armpit for being welded on supporting beam, bottom end and coagulation
Native casting platform face, however the other positions that welding is installed up to supporting beam are not easy to, and above-mentioned pressure earthing or grounding means, Ke Yigen
Installation site is determined according to the 4th mounting hole reserved in supporting beam, it is only necessary to which third mounting hole is passed through by the second connector
The first connecting plate is installed up in supporting beam with the 4th mounting hole, any position being installed up in supporting beam can be convenient for.Its
It is secondary, without considering the solderable sex chromosome mosaicism of pressure grounding assembly, the conductive materials such as steel, copper, stainless steel may be used.
The crimping floor panel assembly includes the first conductive plate and the second conductive plate in one of the embodiments, described
First mounting hole is separately positioned on second mounting hole on the first conductive plate both ends；Second conductive plate includes institute
The first connecting plate is stated, second conductive plate further includes the second connecting plate being connected with first connecting plate, and described second connects
Fishplate bar fitting is arranged on first conductive plate.
First connecting plate is integrated with second connecting plate in one of the embodiments,.
Second connecting plate is equipped with and first mounting hole or second mounting hole in one of the embodiments,
Corresponding 5th mounting hole.
First conductive plate includes third connecting plate, the 4th connecting plate and rebound, institute in one of the embodiments,
It states third connecting plate by the rebound with the 4th connecting plate to be connected, the third connecting plate, the rebound and
Four connecting plates are in hierarchic structure；First mounting hole is arranged on the third connecting plate, and second mounting hole is arranged on
On 4th connecting plate.
The third connecting plate, the 4th connecting plate and being integrated of rebound in one of the embodiments,
Structure；The rebound is elastic plate.
First mounting hole and/or second mounting hole are waist-shaped hole in one of the embodiments, described first
Connector is the first bolt that can be movable in the waist-shaped hole.
The third mounting hole and/or the 4th mounting hole are waist-shaped hole in one of the embodiments, described second
Connector is the second bolt that can be movable in the waist-shaped hole.
Several cable beareves, the cable bearer are arranged at intervals in the supporting beam in one of the embodiments,
It is used to support cable.
Description of the drawings
Fig. 1 is that the structure that the second conductive plate of the pressure earthing or grounding means described in the embodiment of the present invention is installed up in supporting beam is shown
It is intended to；
Fig. 2 is the structure diagram that the pressure earthing or grounding means described in the embodiment of the present invention is installed up in supporting beam；
Fig. 3 is the structure diagram for pressing grounding assembly described in the one of embodiment of the present invention；
Fig. 4 is the structure diagram for pressing grounding assembly described in another embodiment of the present invention；
Fig. 5 is the front view of the first conductive plate described in the embodiment of the present invention；
Fig. 6 is the vertical view of the first conductive plate described in the embodiment of the present invention；
Fig. 7 is the structure diagram of the electric power tunnel described in the embodiment of the present invention.
Reference numeral：
10th, floor panel assembly is crimped, the 11, first conductive plate, the 111, first mounting hole, the 112, second mounting hole, 113,
Three connecting plates, the 114, the 4th connecting plate, 115, rebound, the 12, second conductive plate, the 121, first connecting plate, the 122, second connection
Plate, 123, third mounting hole, the 124, the 5th mounting hole, 20, supporting beam, the 21, the 4th mounting hole, the 30, first connector, 40,
Two connectors, 50, prefabricated tunnel tube coupling, 60, cable bearer, 70, cable.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of violating intension of the present invention, therefore the present invention is not limited by following public specific embodiment.
In the description of the present invention, it is to be understood that term " first ", " second " are only used for description purpose, and cannot
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Define as a result, " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, can be with when an element is considered as " connection " another element
It is directly to another element or may be simultaneously present intermediary element.On the contrary, when element for be referred to as " direct " with it is another
When element connects, there is no intermediary elements.
As shown in Figures 1 and 2, it is a kind of to press earthing or grounding means, crimp floor panel assembly 10 including multiple.The crimping ground
The supporting beam 20 that plate component 10 is used for tunnel madial wall is installed corresponding setting one by one, the crimping series connection of floor panel assembly 10 connect
It connects.The first end of the crimping floor panel assembly 10 is equipped with the first mounting hole 111, the second end for crimping floor panel assembly 10
Equipped with the second mounting hole 112, passed through one of between the adjacent crimping floor panel assembly 10 by the first connector 30
Second mounting hole of first mounting hole 111 of the crimping floor panel assembly 10 with crimping floor panel assembly 10 another described
112 are connected with each other.The crimping floor panel assembly 10 has the first connecting plate.First connecting plate is equipped with third mounting hole
123, first connecting plate is used to pass through the of the third mounting hole 123 and the supporting beam 20 by the second connector 40
Four mounting holes 21 are installed up in the supporting beam 20.
Above-mentioned pressure earthing or grounding means is passed through one of by the first connector 30 and crimps the first of floor panel assembly 10
The second mounting hole 112 that mounting hole 111 crimps floor panel assembly 10 with another is mutual by adjacent crimping floor panel assembly 10
It connects and the first connecting plate is installed up to by branch across 123 and the 4th mounting hole 21 of third mounting hole by the second connector 40
It supports on beam 20, connection and pressure grounding flat steel segment is welded to each other between flattening steel segment without such as traditional ground connection
Welding is arranged on the mounting means in supporting beam 20, presses earthing or grounding means installation operation in tunnel more convenient, can be convenient for fast
Pressure earthing or grounding means fastly is installed up to tunnel madial wall.In addition, traditional flattening steel segment is generally only to be welded on support
Armpit, bottom end and the concrete casting platform face of beam 20, however the other positions that welding is installed up to supporting beam 20 are not easy to, and on
The pressure earthing or grounding means stated can determine installation site according to the 4th mounting hole 21 reserved in supporting beam 20, it is only necessary to
The first connecting plate is installed up in supporting beam 20 i.e. across 123 and the 4th mounting hole 21 of third mounting hole by the second connector 40
Can, any position being installed up in supporting beam 20 can be convenient for.Secondly, the solderable sex chromosome mosaicism of grounding assembly is pressed without consideration, it can
With using conductive materials such as steel, copper, stainless steels.
In one embodiment, also referring to Fig. 3 and Fig. 4, the crimping floor panel assembly 10 includes the first conductive plate
11 and second conductive plate 12.First mounting hole 111 is separately positioned on first conductive plate with second mounting hole 112
On 11 both ends.Second conductive plate 12 includes first connecting plate 121, and second conductive plate 12 further includes and described the
The second connected connecting plate 122 of one connecting plate 121.The fitting of second connecting plate 122 is arranged on first conductive plate 11.
In this way, the second connecting plate 122 is bonded the first conductive plate 11,20 side of the first connecting plate 121 fitting supporting beam so that crimping ground
Device is arranged on relatively stablely in supporting beam 20, and the overlap joint electric interface of metallic connection parts position is larger, can guarantee supporting beam
20 reliable grounds.In addition, it is brushed before tunnel madial wall is installed up on the first conductive plate 11, the second conductive plate 12 yellowish green alternate
Paint, it is preferable to apply brushing effects, can play mark action, favorable anti-corrosion effect, without after tunnel madial wall is installed up to again
Carry out wiping operation.
Further, first connecting plate 121 is integrated with second connecting plate 122.
Further, second connecting plate 122 is equipped with and first mounting hole 111 or second mounting hole 112
Corresponding 5th mounting hole 124.In this way, it is connected with each other between adjacent crimping floor panel assembly 10 by the first connector 30
When, the second connecting plate 122 can be caused to be placed between two the first conductive plates 11, the first connecting plate 121 passes through the first mounting hole
111st, the first conductive plate 11 and the second connecting plate 122 are synchronized the company of being fixed by the 5th mounting hole 124 and the second mounting hole 112
It connects.
Further, also referring to Fig. 5 and Fig. 6, first conductive plate 11 connects including third connecting plate the 113, the 4th
Fishplate bar 114 and rebound 115.The third connecting plate 113 is connected by the rebound 115 with the 4th connecting plate 114,
The third connecting plate 113,115 and the 4th connecting plate 114 of the rebound are in hierarchic structure.First mounting hole 111 is set
It puts on the third connecting plate 113, second mounting hole 112 is arranged on the 4th connecting plate 114.It is in this way, each
It, can be so that each third connecting plate 113 be in same direction and along tunnel axis after first conductive plate 11 is connected in series with each other
It is set to direction and each 4th connecting plate 114 is caused to be in same direction and set along tunnel axial direction, made
It is more firm to obtain installation effect of the uniform grounding assembly in tunnel.
Further, the third connecting plate 113, the 4th connecting plate 114 and 115 being integrated of rebound
Structure.The rebound 115 is elastic plate.In this way, the distance between third connecting plate 113, the 4th connecting plate 114 are adjustable, it can
The error not in the same plane due to pressure grounding assembly adjacent caused by the construction scale error of tunnel tube coupling is adjusted, is ensured
Adjacent pressure grounding assembly is reliably connect with supporting beam 20.
In one embodiment, first mounting hole 111 and/or second mounting hole 112 are waist-shaped hole, described the
A connection piece 30 is the first bolt that can be movable in the waist-shaped hole.In this way, in tunnel adjacent supports beam 20 spacing
During existing error, the first bolt can be movable in waist-shaped hole along tunnel axial direction, carries out the adjustment of adaptability, this
Sample can preferably realize the adjacent mutual assembly and connection for crimping floor panel assembly 10.
In one embodiment, the third mounting hole 123 and/or the 4th mounting hole 21 are waist-shaped hole, described the
Two connectors 40 are the second bolt that can be movable in the waist-shaped hole.In this way, the second connector 40 can be along tunnel diameter
It is movable in waist-shaped hole to direction, it is adjusted due to pressure grounding assembly adjacent caused by the construction scale error of tunnel tube coupling not
Error in the same plane ensures that adjacent pressure grounding assembly is reliably connect with supporting beam 20.Optionally, the first connector
30th, the second connector 40 can be connecting rope or riveting parts.
It please join and read Fig. 7 together, a kind of electric power tunnel including the pressure earthing or grounding means, further includes prefabricated tunnel tube coupling
50th, the multiple supporting beams 20 being spaced side by side along the madial wall axial direction of the prefabricated tunnel tube coupling 50.The crimping ground
Plate component 10 and the supporting beam 20 corresponding setting one by one, the crimping floor panel assembly 10 are worn by second connector 40
The third mounting hole 123 is crossed to be installed up in the supporting beam 20 with the 4th mounting hole 21.
Above-mentioned electric power tunnel, due to including above-mentioned pressure earthing or grounding means, technique effect is by pressing earthing or grounding means
It brings, it is identical with the technique effect of pressure earthing or grounding means, without repeating.
Specifically, several cable beareves 60 are arranged at intervals in the supporting beam 20.The cable bearer 60 is for branch
Support cable 70.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. one kind presses earthing or grounding means, which is characterized in that crimps floor panel assembly including multiple, the crimping floor panel assembly is used
It sets in the supporting beam installed to tunnel madial wall is corresponding one by one, the crimping floor panel assembly is connected in series with；It is described to crimp
The first end of floor panel assembly is equipped with the first mounting hole, and the second end of the crimping floor panel assembly is equipped with the second mounting hole, adjacent
It is described crimp floor panel assembly between by the first connector pass through one of it is described crimping floor panel assembly first peace
Dress hole is connected with each other with crimping the second mounting hole of floor panel assembly another described；The crimping floor panel assembly has first
Connecting plate, first connecting plate are equipped with third mounting hole, and first connecting plate is used to pass through by the second connector described
Third mounting hole and the 4th mounting hole of the supporting beam are installed up in the supporting beam.
2. according to claim 1 press earthing or grounding means, which is characterized in that the crimping floor panel assembly is led including first
Battery plate and the second conductive plate, first mounting hole are separately positioned on the first conductive plate both ends with second mounting hole
On；Second conductive plate includes first connecting plate, and second conductive plate is further included to be connected with first connecting plate
The second connecting plate, second connecting plate fitting is arranged on first conductive plate.
3. according to claim 2 press earthing or grounding means, which is characterized in that first connecting plate is connect with described second
Plate is integrated.
4. according to claim 2 press earthing or grounding means, which is characterized in that second connecting plate is equipped with and described first
Mounting hole or corresponding 5th mounting hole of second mounting hole.
5. according to claim 2 press earthing or grounding means, which is characterized in that first conductive plate is connected including third
Plate, the 4th connecting plate and rebound, the third connecting plate are connected by the rebound with the 4th connecting plate, and described
Three connecting plates, the rebound and the 4th connecting plate are in hierarchic structure；First mounting hole is arranged on the third connecting plate
On, second mounting hole is arranged on the 4th connecting plate.
6. according to claim 5 press earthing or grounding means, which is characterized in that the third connecting plate, the 4th connection
Plate is integrated with the rebound；The rebound is elastic plate.
7. according to claim 1 press earthing or grounding means, which is characterized in that first mounting hole and/or described second
Mounting hole is waist-shaped hole, and first connector is the first bolt that can be movable in the waist-shaped hole.
8. according to claim 1 press earthing or grounding means, which is characterized in that the third mounting hole and/or the described 4th
Mounting hole is waist-shaped hole, and second connector is the second bolt that can be movable in the waist-shaped hole.
9. a kind of electric power tunnel, which is characterized in that including the pressure earthing or grounding means as described in claim 1 to 8 any one, go back
Including prefabricated tunnel tube coupling, along the axial spaced multiple supporting beams side by side of the prefabricated tunnel tube coupling madial wall, it is described
Crimping floor panel assembly with the supporting beam is corresponding one by one sets, the floor panel assembly that crimps is worn by second connector
The third mounting hole is crossed to be installed up in the supporting beam with the 4th mounting hole.
10. electric power tunnel according to claim 9, which is characterized in that several electricity are arranged at intervals in the supporting beam
Cable stent, the cable bearer are used to support cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097267.5A CN108232482B (en) | 2018-01-31 | 2018-01-31 | Equal-voltage grounding device and power tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097267.5A CN108232482B (en) | 2018-01-31 | 2018-01-31 | Equal-voltage grounding device and power tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108232482A true CN108232482A (en) | 2018-06-29 |
| CN108232482B CN108232482B (en) | 2023-08-22 |
Family
ID=62670220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810097267.5A Active CN108232482B (en) | 2018-01-31 | 2018-01-31 | Equal-voltage grounding device and power tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108232482B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211878A (en) * | 2007-02-23 | 2008-09-11 | Sumitomo Electric Ind Ltd | Design method for superconducting cable line and superconducting cable line |
| CN202797313U (en) * | 2012-09-26 | 2013-03-13 | 中电装备恩翼帕瓦（山东）高压开关有限公司 | Grounding assembly convenient to install |
| CN103633587A (en) * | 2013-12-10 | 2014-03-12 | 国网上海市电力公司 | Bolt-type grounding protection fixing device |
| CN204113300U (en) * | 2014-07-30 | 2015-01-21 | 广州电力设计院 | Municipal tunnel |
| CN105312800A (en) * | 2015-11-13 | 2016-02-10 | 湖北三助装备技术有限公司 | Conductive structure capable of conducting spot welding protection on vehicle body outer parts |
| CN207883911U (en) * | 2018-01-31 | 2018-09-18 | 广州电力设计院有限公司 | Press earthing or grounding means and electric power tunnel |
-
2018
- 2018-01-31 CN CN201810097267.5A patent/CN108232482B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008211878A (en) * | 2007-02-23 | 2008-09-11 | Sumitomo Electric Ind Ltd | Design method for superconducting cable line and superconducting cable line |
| CN202797313U (en) * | 2012-09-26 | 2013-03-13 | 中电装备恩翼帕瓦（山东）高压开关有限公司 | Grounding assembly convenient to install |
| CN103633587A (en) * | 2013-12-10 | 2014-03-12 | 国网上海市电力公司 | Bolt-type grounding protection fixing device |
| CN204113300U (en) * | 2014-07-30 | 2015-01-21 | 广州电力设计院 | Municipal tunnel |
| CN105312800A (en) * | 2015-11-13 | 2016-02-10 | 湖北三助装备技术有限公司 | Conductive structure capable of conducting spot welding protection on vehicle body outer parts |
| CN207883911U (en) * | 2018-01-31 | 2018-09-18 | 广州电力设计院有限公司 | Press earthing or grounding means and electric power tunnel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108232482B (en) | 2023-08-22 |
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