CN115528545B - Lightning protection device for power cable - Google Patents
Lightning protection device for power cable Download PDFInfo
- Publication number
- CN115528545B CN115528545B CN202211309245.3A CN202211309245A CN115528545B CN 115528545 B CN115528545 B CN 115528545B CN 202211309245 A CN202211309245 A CN 202211309245A CN 115528545 B CN115528545 B CN 115528545B
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- Prior art keywords
- plate
- clamping plate
- clamping
- lightning protection
- rod
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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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
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
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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
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The application relates to the technical field of lightning protection equipment and discloses a lightning protection device for a power cable, which comprises a fixed plate and a lightning rod arranged on the fixed plate, wherein a clamping device for fixing the power cable is arranged at the bottom of the fixed plate; the lightning rod is connected with the grounding box, the connecting wire extends to the inside of the grounding box, and a leakage substance is stored in the grounding box; the grounding box is also provided with a buoyancy device, and inert gas with density less than that of air is stored in the buoyancy device. The lightning protection device for the power cable is fixed on the power cable in a multi-thunderstorm area, the lead of the lightning rod is led into a leakage substance in the grounding box, and the lightning rod can release current formed by charges in the cloud layer into the leakage substance, so that the lightning protection effect is achieved.
Description
Technical Field
The application relates to the technical field of lightning protection equipment, in particular to a lightning protection device for a power cable.
Background
The power cable is a cable for transmitting and distributing electric energy, and comprises various voltage levels of 1-500KV and above, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river, and the proportion of the cable in the power lines is gradually increasing. The safety use of the power cable in daily life is ensured, and lightning protection measures are required.
Most electric power cables are in open field, and among the prior art, ordinary lightning protection device can't install on electric power cable and protect it, and when thunderstorm weather, the condition that often can appear electric power cable is hit by the thunderbolt and damage takes place, so has put forward a lightning protection device for electric power cable and has solved above-mentioned problem.
Disclosure of Invention
Aiming at the defects of the prior art, the application provides a lightning protection device for a power cable, which has the advantages of lightning protection and the like of the power cable, and solves the problem that the power cable is often damaged due to being hit by lightning in thunderstorm weather.
In order to achieve the above purpose, the present application provides the following technical solutions: the lightning protection device for the power cable comprises a fixed plate and a lightning rod arranged on the fixed plate, wherein a clamping device for fixing the power cable is arranged at the bottom of the fixed plate;
the lightning rod is connected with the grounding box, the connecting wire extends to the inside of the grounding box, and a leakage substance is stored in the grounding box;
the grounding box is also provided with a buoyancy device, and inert gas with density less than that of air is stored in the buoyancy device.
In an optional manner, at least one rotatable driving device is further arranged on the fixing plate, and if the number of the driving devices is multiple, the driving devices are arranged around the lightning rod.
In an optional mode, the clamping device comprises a first clamping plate and a second clamping plate, a fixing device is arranged between the first clamping plate and the second clamping plate, one end of the first clamping plate is fixedly connected to the fixing plate, one end of the second clamping plate is movably arranged on the fixing plate, and the other end of the second clamping plate is movably connected with the other end of the first clamping plate through the fixing device.
In an optional mode, fixing device includes locating plate, recess, threaded rod and nut, the bottom fixed mounting of first splint has the locating plate, the recess is seted up to the bottom of locating plate, the bottom of second splint articulates there is the threaded rod that runs through the recess and extends to the locating plate outside, the threaded rod outside just is located one side threaded connection that the locating plate kept away from the second splint has the nut.
In an alternative mode, insulating pads are fixedly arranged on the opposite sides of the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are stainless steel plates.
In an optional mode, the mounting grooves are formed in two sides of the fixing plate, one side of the grounding box is fixedly provided with a mounting block extending into the mounting groove, and the mounting groove is clamped with the mounting block.
In an optional mode, be provided with the joint device on the fixed plate, the joint device includes the box body, the box body sets up on the fixed plate, the spout has been seted up to the inside of box body, the spout inner wall is provided with the slider, the equal fixed mounting of one side of keeping away from the grounding box has the telescopic spring with spout fixed connection on the slider, one side of keeping away from telescopic spring on the slider is provided with the draw-in bar that extends to the installation piece inside, and is close to one side of telescopic spring is provided with the pull rod.
In an optional mode, the buoyancy device comprises an air storage bag, an air charging pipe and an air charging valve, the air storage bag is arranged on the grounding box, the bottom of the air storage bag is communicated with the air charging pipe, and the air charging valve is arranged on the outer side of the air charging pipe.
In an alternative mode, the driving device comprises a rotating rod, a mounting plate and a reflecting mirror, wherein the rotating rod is rotatably mounted at the top of the fixing plate, the mounting plate is fixedly mounted on the rotating rod, and the reflecting mirror is fixedly mounted on the mounting plate.
In an optional mode, the bottom of fixed plate has seted up the spacing groove, the inside slidable mounting in spacing groove has the stopper with second splint fixed connection, one side fixed mounting that the stopper kept away from first splint has the reset spring with spacing groove fixed connection.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
this lightning protection device for power cable through setting up fixing device, lightning rod and grounding box to reach the effect of lightning prevention. The lightning protection device for the electric power cable is fixed on the electric power cable in a multi-thunderstorm area through the fixing device, when lightning strikes the electric power cable in thunderstorm weather, the lead of the lightning rod is led into a leakage substance in the grounding box, and the lightning rod can release current formed by charges in the cloud layer into the leakage substance, so that the lightning protection effect is achieved.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of the overall structure of a lightning protection device for a power cable according to an embodiment of the present application;
FIG. 2 is an enlarged schematic view of the structure shown in FIG. 1A according to an embodiment of the present application;
FIG. 3 is an enlarged schematic view of the structure shown in FIG. 1B according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of the structure of FIG. 1 at C according to an embodiment of the present application;
fig. 5 is a front view of a lightning protection device for a power cable according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a clamping device of a lightning protection device for a power cable according to an embodiment of the present application.
In the figure: 1-fixed plate, 11-mounting groove, 12-mounting block, 2-clamping device, 21-first splint, 22-second splint, 3-grounding box, 4-fixing device, 41-locating plate, 42-recess, 43-threaded rod, 44-nut, 5-lightning rod, 6-clamping device, 61-box body, 62-spout, 63-slider, 64-expansion spring, 65-clamping rod, 66-pull rod, 7-buoyancy device, 71-air storage bag, 72-gas tube, 73-gas valve, 8-driving device, 81-rotating rod, 82-mounting plate, 83-reflector.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-6, a lightning protection device for a power cable in an embodiment of the present application includes a fixing plate 1 and a lightning rod 5, the lightning rod 5 is disposed at the top of the fixing plate 1, and a clamping device 2 for fixing the power cable is disposed at the bottom of the fixing plate 1; the fixed plate 1 is also provided with at least one grounding box 3, the grounding box 3 stores leakage substances, the lightning rod 5 is connected with the grounding box 3, and a connecting wire extends into the grounding box 3; when lightning hits the power cable, the lightning passes through the lightning rod 5, and the lightning rod 5 leads into the leakage substances in the grounding box 3, thereby playing a role in preventing lightning. The grounding box 3 is also provided with a buoyancy device 7, and inert gas with density smaller than that of air is stored in the buoyancy device 7 to provide certain lifting buoyancy for the grounding box 3.
Referring to fig. 1, in some embodiments of the present application, the clamping device 2 includes a first clamping plate 21 and a second clamping plate 22, a fixing device 4 is disposed between the first clamping plate 21 and the second clamping plate 22, one end of the first clamping plate 21 is fixedly connected to the fixing plate 1, one end of the second clamping plate 22 is movably disposed on the fixing plate 1, and the other end is movably connected to the other end of the first clamping plate 21 through the fixing device 4. Insulating pads are fixedly arranged on the opposite sides of the first clamping plate 21 and the second clamping plate 22, and the first clamping plate 21 and the second clamping plate 22 are stainless steel plates.
Referring to fig. 2, in some embodiments of the present application, the fixing device 4 includes a positioning plate 41, a groove 42, a threaded rod 43 and a nut 44, the bottom of the first clamping plate 21 is fixedly mounted with the positioning plate 41, the bottom of the positioning plate 41 is provided with the groove 42, the bottom of the second clamping plate 22 is hinged with the threaded rod 43 with one end penetrating the groove 42 and extending to the outer side of the positioning plate 41, and the threaded rod 43 is connected with the nut 44 in a threaded manner on the outer side of the threaded rod 43 and on the side of the positioning plate 41 away from the second clamping plate 22. The fixing device can fix the device at the outside of the power cable by connecting the first clamping plate 21 and the second clamping plate 22.
Referring to fig. 4, in some embodiments of the present application, the fixing plate 1 is further provided with a mounting groove 11, and the grounding box 3 is fixedly provided with a mounting block 12 with one end extending into the mounting groove 11, and the mounting groove 11 is clamped with the mounting block 12.
Referring to fig. 6, in some embodiments of the present application, the fixing plate 1 is provided with a clamping device 6, the clamping device 6 includes a box body 61, the box body 61 is disposed on the fixing plate 1, a sliding groove 62 is formed in the box body 61, a sliding block 63 is disposed on an inner wall of the sliding groove 62, a telescopic spring 64 fixedly connected with the sliding groove 62 is fixedly installed on a side, away from the grounding box 3, of the sliding block 63, a clamping rod 65 extending into the mounting block 12 is disposed on a side, away from the telescopic spring 64, of the sliding block 63, and a pull rod 66 is disposed on a side, close to the telescopic spring 64.
Referring to fig. 3, in some embodiments of the present application, the buoyancy device 7 includes a gas storage bag 71, an inflation tube 72 and an inflation valve 73, the gas storage bag 71 is fixedly installed on the grounding box 3, the inflation tube 72 is connected to the bottom of the gas storage bag 71, and the inflation valve 73 is disposed outside the inflation tube 72.
The lightning protection device for the electric cable is characterized in that when the grounding box 3 and the buoyancy device 7 are overhauled and maintained through the clamping device 6, the clamping rod 65 can be pulled towards the opposite side of the pull rod 66 so as to be separated from the contact with the mounting block 12, the grounding box 3 can be pulled forward to separate the mounting block 12 from the mounting groove 11, and the grounding box 3 and the buoyancy device 7 can be detached from the fixing plate, so that the overhauling and the maintenance of the device are facilitated, and the practicability of the device is improved.
Referring to fig. 1, in some embodiments of the present application, at least one rotatable driving device 8 is further disposed on the fixing plate, and if the number of driving devices is plural, plural driving devices 8 are disposed around the lightning rod 5. The driving device 8 comprises a rotating rod 81, a mounting plate 82 and a reflective mirror 83, wherein the rotating rod 81 is rotatably mounted on the top of the fixing plate, the mounting plate 82 is fixedly mounted on the rotating rod 81, and the reflective mirror 83 is fixedly mounted on the mounting plate.
During the use, wind force can tend to make dwang 81 rotate, and dwang 81 carries mirror 83 on the mounting panel 82 to rotate, can drive the birds that is close to fixed plate 1, can reduce the condition that birds nest on the device, has prolonged the life of device.
In some embodiments of the present application, a limiting groove is formed at the bottom of the fixing plate 1, a limiting block with one end fixedly connected with the second clamping plate 22 is slidably installed in the limiting groove, and a return spring fixedly connected with the limiting groove is fixedly installed at one side of the limiting block away from the first clamping plate 21.
The application provides a use method of a lightning protection device for a power cable, which comprises the following steps:
(1) And (2) mounting: the first clamping plate 21 and the second clamping plate 22 are sleeved on the outer side of the electric power cable, the second clamping plate 22 is moved towards the direction of the first clamping plate 21 to be tightly attached to the outer surface of the electric power cable, the threaded rod 43 is turned to clamp the electric power cable into the groove 42, the nut 44 is screwed to clamp and fix the electric power cable, the fixing plate 1 is fixed on the outer side of the electric power cable, the installation block 12 is clamped into the installation groove 11, the grounding box 3 is installed, the lightning rod 5 is connected into the grounding box 3 through a wire, and finally the air charging equipment is used for charging inert gas with the density smaller than that of the atmosphere into the air storage bag 71 through the air charging pipe 72, so that the installation of the device can be completed.
(2) Lightning protection: in thunderstorm weather, when thunder hits the electric cable, thunder can pass through the lightning rod 5, and then the wires of the lightning rod 5 are led into the leakage substances in the grounding box 3 to release current into the leakage substances, so that the lightning protection effect can be achieved.
(3) Protection: in the use, natural wind can tend to make dwang 81 rotate, and dwang 81 takes mirror 83 on mounting panel 82 to rotate to this drives the birds that are close to fixed plate 1, can reduce the bird condition of nesting on the device, has prolonged the life of device.
(4) Maintenance: when the grounding box 3 and the buoyancy device 7 are overhauled and maintained, the clamping rod 65 can be pulled towards the opposite side of the drawing rod 66 so as to be separated from the contact with the mounting block 12, the grounding box 3 is drawn forward so as to separate the mounting block 12 from the mounting groove 11, and the grounding box 3 and the buoyancy device 7 can be detached from the fixing plate 1, so that the overhauling and maintenance of the device are facilitated.
As can be seen from the above technical solutions, the embodiments of the present application provide a lightning protection device for a power cable: the lightning rod fixing device comprises a fixing plate 1 and a lightning rod 5 arranged at the top of the fixing plate 1, wherein a clamping device 2 for fixing a power cable is arranged at the bottom of the fixing plate 1; the fixed plate 1 is also provided with at least one grounding box 3, the grounding box 3 stores leakage substances, the lightning rod 5 is connected with the grounding box 3, and a connecting wire extends into the grounding box 3; when lightning hits the power cable, the lightning passes through the lightning rod 5, and the lightning rod 5 leads into the leakage substances in the grounding box 3, thereby playing a role in preventing lightning. The grounding box 3 is also provided with a buoyancy device 7, and inert gas with density smaller than that of air is stored in the buoyancy device 7 to provide certain lifting buoyancy for the grounding box 3.
This lightning protection device for power cable through setting up fixing device 4, lightning rod 5 and grounding box 3 to reach the effect of lightning prevention. The lightning protection device for the electric power cable is fixed on the electric power cable in a multi-thunderstorm area through the fixing device 4, when thunder hits the electric power cable in thunderstorm weather, the lead wire of the lightning rod 5 is led into a leakage substance in the grounding box, and the lightning rod can release current formed by charges in the cloud layer into the leakage substance, so that the lightning protection effect is achieved.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The lightning protection device for the power cable is characterized by comprising a fixed plate (1) and a lightning rod (5) arranged on the fixed plate (1), wherein a clamping device (2) for fixing the power cable is arranged at the bottom of the fixed plate (1);
the lightning rod (5) is connected with the grounding box (3), a connecting wire extends to the inside of the grounding box (3), and a leakage substance is stored in the grounding box (3);
the grounding box (3) is also provided with a buoyancy device (7), and inert gas with density less than that of air is stored in the buoyancy device (7);
the fixing plate (1) is provided with a mounting groove (11), one side of the grounding box (3) is fixedly provided with a mounting block (12) extending into the mounting groove (11), and the mounting groove (11) is clamped with the mounting block (12);
the fixing plate (1) is provided with a clamping device (6), the clamping device (6) comprises a box body (61), and the box body (61) is arranged on the fixing plate (1);
the inside of box body (61) has seted up spout (62), spout (62) inner wall is provided with slider (63), one side fixed mounting who keeps away from earthing box (3) on slider (63) has telescopic spring (64) with spout (62) fixed connection, one side that keeps away from telescopic spring (64) on slider (63) is provided with clamping rod (65) that extend to inside installation piece (12), and is close to one side of telescopic spring (64) is provided with pull rod (66).
2. The lightning protection device for electric power cables according to claim 1, characterized in that the fixed plate (1) is further provided with at least one rotatable driving device (8);
if the number of the driving devices (8) is a plurality of, the driving devices (8) are arranged around the lightning rod (5).
3. The lightning protection device for electric power cables according to claim 1, characterized in that the clamping device (2) comprises a first clamping plate (21), a second clamping plate (22);
a fixing device (4) is arranged between the first clamping plate (21) and the second clamping plate (22), one end of the first clamping plate (21) is fixedly connected to the fixing plate (1), one end of the second clamping plate (22) is movably arranged on the fixing plate (1), and the other end of the second clamping plate is movably connected with the other end of the first clamping plate (21) through the fixing device (4).
4. A lightning protection device for electric power cables according to claim 3, characterized in that the fixing means (4) comprise a positioning plate (41), a groove (42), a threaded rod (43) and a nut (44);
the bottom fixed mounting of first splint (21) has locating plate (41), recess (42) are seted up to the bottom of locating plate (41), the bottom of second splint (22) articulates has threaded rod (43) that runs through recess (42) and extend to locating plate (41) outside, threaded rod (43) outside just is located locating plate (41) and is kept away from one side threaded connection of second splint (22) and has nut (44).
5. A lightning protection device for electric cables according to claim 3, characterized in that the opposite sides of the first clamping plate (21) and the second clamping plate (22) are fixedly provided with insulating pads, and the first clamping plate (21) and the second clamping plate (22) are stainless steel plates.
6. The lightning protection device for the electric cable of claim 1, wherein the buoyancy device (7) comprises an air storage bag (71), an air charging pipe (72) and an air charging valve (73), the air storage bag (71) is arranged on the grounding box (3), the air charging pipes (72) are communicated with the bottom of the air storage bag (71), and the air charging valve (73) is arranged on the outer side of the air charging pipe (72).
7. The lightning protection device for the electric cable according to claim 2, wherein the driving device (8) comprises a rotating rod (81), a mounting plate (82) and a reflector (83), the rotating rod (81) is rotatably mounted at the top of the fixing plate (1), the mounting plate (82) is fixedly mounted on the rotating rod (81), and the reflector (83) is fixedly mounted on the mounting plate (82).
8. A lightning protection device for electric power cable according to claim 3, characterized in that the bottom of the fixed plate (1) is provided with a limit groove, a limit block fixedly connected with the second clamping plate (22) is slidably mounted in the limit groove, and a return spring fixedly connected with the limit groove is fixedly mounted on one side, far away from the first clamping plate (21), of the limit block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211309245.3A CN115528545B (en) | 2022-10-25 | 2022-10-25 | Lightning protection device for power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211309245.3A CN115528545B (en) | 2022-10-25 | 2022-10-25 | Lightning protection device for power cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115528545A CN115528545A (en) | 2022-12-27 |
| CN115528545B true CN115528545B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211309245.3A Active CN115528545B (en) | 2022-10-25 | 2022-10-25 | Lightning protection device for power cable |
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| Country | Link |
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| CN (1) | CN115528545B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202503194U (en) * | 2012-04-10 | 2012-10-24 | 谢娟 | Suspension type lightning arrester applicable to power transmission lines |
| CN103457164A (en) * | 2012-05-29 | 2013-12-18 | 山东金王电器有限公司 | Safety lightning elimination balloon |
| CN106169744A (en) * | 2016-08-24 | 2016-11-30 | 扬州华峰防雷新科技有限公司 | A kind of change can change thunder system and device |
| CN108832584A (en) * | 2018-09-12 | 2018-11-16 | 安徽仁信安防电子工程有限公司 | A kind of lightning proof for land-based radar |
| CN213367354U (en) * | 2020-09-22 | 2021-06-04 | 山西恩博利雷电防护有限公司 | Outdoor lightning protection device for multiphase power transmission line |
| CN216214809U (en) * | 2021-11-10 | 2022-04-05 | 温州安能科技有限公司 | Intelligent current-limiting lightning rod |
-
2022
- 2022-10-25 CN CN202211309245.3A patent/CN115528545B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202503194U (en) * | 2012-04-10 | 2012-10-24 | 谢娟 | Suspension type lightning arrester applicable to power transmission lines |
| CN103457164A (en) * | 2012-05-29 | 2013-12-18 | 山东金王电器有限公司 | Safety lightning elimination balloon |
| CN106169744A (en) * | 2016-08-24 | 2016-11-30 | 扬州华峰防雷新科技有限公司 | A kind of change can change thunder system and device |
| CN108832584A (en) * | 2018-09-12 | 2018-11-16 | 安徽仁信安防电子工程有限公司 | A kind of lightning proof for land-based radar |
| CN213367354U (en) * | 2020-09-22 | 2021-06-04 | 山西恩博利雷电防护有限公司 | Outdoor lightning protection device for multiphase power transmission line |
| CN216214809U (en) * | 2021-11-10 | 2022-04-05 | 温州安能科技有限公司 | Intelligent current-limiting lightning rod |
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| Publication number | Publication date |
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| CN115528545A (en) | 2022-12-27 |
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