CN216209362U - Lightning protection switch and system in high-voltage test hall - Google Patents
Lightning protection switch and system in high-voltage test hall Download PDFInfo
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- CN216209362U CN216209362U CN202122325085.9U CN202122325085U CN216209362U CN 216209362 U CN216209362 U CN 216209362U CN 202122325085 U CN202122325085 U CN 202122325085U CN 216209362 U CN216209362 U CN 216209362U
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Abstract
The utility model relates to a lightning protection switch of a high-voltage test hall, which comprises an insulating plate, a first metal plate, a second metal plate and a knife switch, wherein a gap is formed between the first metal plate and the second metal plate and is arranged on the insulating plate, the knife switch comprises a first clamping plate, a second clamping plate and a knife switch, the first clamping plate and the second clamping plate are respectively arranged on the first metal plate and the second metal plate, one end of the knife switch is rotatably connected with the first clamping plate and drives the other end of the knife switch to swing between a switching-on position and a switching-off position. A lightning protection system for a high voltage test hall comprising a lightning protection switch as described above, a metal guide and an earth strap, the lightning protection switch being connected between the metal guide and the earth strap. The utility model can meet the basic lightning protection grounding requirement of a steel structure ultrahigh voltage and high voltage power cable shielding experiment hall, and also avoids the occurrence of hall accidents of the experiment hall damaged by lightning caused by ungrounded lightning.
Description
Technical Field
The utility model relates to the technical field of high-voltage test halls of steel structure buildings, in particular to a lightning protection switch and a lightning protection system of the high-voltage test halls.
Background
According to the technical specifications of a relevant high-voltage test hall, steel structure buildings used for the high-voltage test hall are insulated from the ground. But according to relevant building technical specifications, many steel structure columns of the steel structure building must be connected with the lightning protection grounding electrode. Two technical specifications form a contradiction on the special building. When the high-voltage test hall is in actual use, the lightning protection grounding connection is met, meanwhile, parts of the lightning protection grounding electrodes are repeatedly disconnected and connected according to the requirements of different test projects, the test background of the hall is debugged, and finally the optimal single-point grounding requirement is met at a certain steel column. However, the disconnection has certain hidden danger on lightning protection of buildings and does not conform to the lightning protection technical specifications of related buildings.
In the existing part of high-voltage test halls, the grounding electrode is directly fixed on a steel structure column by a plurality of bolts outside the hall. Therefore, great troubles are caused for disconnecting or connecting the grounding electrode at any time and debugging the test background repeatedly. If a plurality of points are not well updated after being disconnected, destructive accidents can happen to buildings when lightning strikes are generated.
Therefore, it is an urgent need to solve the problem of the art to provide a lightning protection switch that can be turned off or on at any time in a high voltage test hall and can discharge a lightning current in the off state.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the defects that the common lightning protection switch in the high-voltage test hall in the prior art can not be switched off or switched on at any time, and the common lightning protection switch can not discharge lightning current in the off state.
In order to solve the technical problems, the utility model provides a lightning protection switch of a high-voltage test hall, which comprises an insulating plate, a first metal plate, a second metal plate and a knife switch, wherein a gap is formed between the first metal plate and the second metal plate and the gaps are formed in the insulating plate, the knife switch comprises a first clamping plate, a second clamping plate and a knife switch, the first clamping plate and the second clamping plate are respectively arranged on the first metal plate and the second metal plate, one end of the knife switch is rotatably connected to the first clamping plate and drives the other end of the knife switch to swing between a switch-on position and a switch-off position, the other end of the knife switch is in contact with the second clamping plate in the switch-on position, and the other end of the knife switch is separated from the second clamping plate in the switch-off position.
Further, the first metal plate is provided with first saw teeth, the second metal plate is provided with second saw teeth, and tooth tops of one of the first saw teeth and the second saw teeth are arranged opposite to tooth sockets of the other one of the first saw teeth and the second saw teeth.
Further, the gap between the first metal plate and the second metal plate ranges from 0.5mm to 1.5 mm.
Further, the width of the gap between the first metal plate and the second metal plate is 1 mm.
Further, the cross-sectional area of the first metal plate and the second metal plate is not less than 120mm2。
Further, the first clamping plate and the second clamping plate are fixed on the first metal plate and the second metal plate through bolts.
Further, the insulating plate is made of an epoxy laminated glass cloth plate.
Further, the first metal plate and the second metal plate are galvanized copper bars.
The utility model provides a lightning protection system in high-voltage testing hall, includes lightning protection switch, metal baffle and earthing pole area, first splint with in the second splint, one of them with the metal baffle is connected, another with the earthing pole area is connected, metal baffle and high-voltage testing hall steel construction conductive connection, the earthing pole area with earthing pole board conductive connection.
Furthermore, the grounding electrode strip is made of zinc-plated copperRow, the cross-sectional area of the grounding electrode strip is not less than 120mm2。
Compared with the prior art, the technical scheme of the utility model has the following advantages:
1) the lightning protection switch of the high-voltage test hall disclosed by the utility model adopts a knife switch structure, not only can meet the requirement of lightning protection grounding, but also can conveniently carry out test adjustment work, meets the required requirement of a high-voltage test, and fundamentally avoids the condition that a building is damaged due to lightning stroke because the grounding electrode is forgotten to be connected.
2) The lightning protection system of the high-voltage test hall disclosed by the utility model has a simple structure, and the original troublesome lightning protection work can be changed into simple, clear and easy operation by using the lightning protection switch, so that the error judgment of whether the grounding electrode is connected well is reduced.
Drawings
In order that the present disclosure may be more readily and clearly understood, the following detailed description of the present disclosure is provided in connection with specific embodiments thereof and the accompanying drawings, in which,
FIG. 1 is a view of the lightning protection switch structure of a high voltage testing hall of the present invention;
fig. 2 is a top view of a lightning protection switch of a high voltage test hall of the present invention.
The specification reference numbers indicate: 10. an insulating plate; 20. a first metal plate; 21. a second metal plate; 22. A gap; 23. a first saw tooth; 24. a second saw tooth; 30. a knife switch; 31. a first splint; 32. A second splint; 33. a knife switch; 40. a metal guide plate; 41. a ground electrode strip; 42. a steel structure.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further improvements to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only relational terms determined for convenience in describing structural relationships of the parts or elements of the present disclosure, and do not refer to any parts or elements of the present disclosure, and are not to be construed as limiting the present disclosure. In the present disclosure, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present disclosure can be determined on a case-by-case basis by persons skilled in the relevant art or technicians, and are not to be construed as limitations of the present disclosure.
The following is a preferred embodiment of the present invention, but is not intended to limit the scope of the present invention.
Referring to fig. 1 to 2, the lightning protection switch of a high voltage test hall according to the present invention includes an insulating plate 10, a first metal plate 20, a second metal plate 21 and a knife switch 30, a gap 22 is provided between the first metal plate 20 and the second metal plate 21, and both are provided on the insulating plate 10, the knife switch 30 includes a first clamping plate 31, a second clamping plate 32 and a knife 33, the first clamping plate 31 and the second clamping plate 32 are respectively arranged on the first metal plate 20 and the second metal plate 21, one end of the knife blade 33 is rotatably connected to the first clamp plate 31 and drives the other end of the knife blade 33 to swing between a switch-on position and a switch-off position, the other end of the blade 33 contacts the second clamp 32 at the on position, and the other end of the blade 33 is separated from the second clamp 32 at the off position.
In the above, the lightning protection switch includes a set of metal plates with gaps and a set of metal blades connected in parallel to the metal plates and capable of being opened and closed. When the lightning protection device is in a disconnected state, the lightning protection device can be in an insulation state with the ground, and at the moment, if lightning strikes, strong current generated during the lightning strikes can be discharged through the metal plate. When the lightning protection device is in a closed state, the lightning protection device can be conducted with the ground and can discharge current generated by lightning stroke.
In a preferred embodiment of the present invention, the first metal plate 20 is provided with first saw teeth 23, the second metal plate 21 is provided with second saw teeth 24, and the tooth tips of one of the first saw teeth 23 and the second saw teeth 24 are disposed to face the tooth grooves of the other.
In the above, the lightning discharges at the first saw tooth and the second saw tooth through the steel, breaks through air, and transfers energy to the next section of steel.
In a preferred embodiment of the present invention, the gap 22 between the first metal plate 20 and the second metal plate 21 is in a range of 0.5mm to 1.5 mm.
In a preferred embodiment of the present invention, the width of the gap 22 between the first metal plate 20 and the second metal plate 21 is 1 mm.
In a preferred embodiment of the present embodiment, the cross-sectional areas of the first metal plate 20 and the second metal plate 21 are not less than 120mm2。
In the above, the first metal plate and the above-mentioned second metal plate have a cross-sectional area of not less than 120mm2And is used for meeting the load of lightning impulse.
In a preferred embodiment of the present invention, the first clamp plate 31 and the second clamp plate 32 are fixed to the first metal plate 20 and the second metal plate 21 by bolts.
In a preferred embodiment of the present embodiment, the insulating plate 10 is made of an epoxy laminated glass cloth plate.
In a preferred embodiment of the present invention, the first metal plate 20 and the second metal plate 21 are galvanized copper bars.
In the above, the galvanized copper busbar is provided with a zinc protective film, so that the galvanized copper busbar is rust-proof and has good conductivity.
A lightning protection system of a high-voltage test hall comprises the lightning protection switch, a metal guide plate 40 and a grounding electrode strip 41, wherein one of the first clamping plate 31 and the second clamping plate 32 is connected with the metal guide plate 40, the other one is connected with the grounding electrode strip 41, the metal guide plate 40 is electrically connected with a steel structure 42 of the high-voltage test hall, and the grounding electrode strip 41 is electrically connected with the grounding electrode strip.
In the foregoing, a lightning protection system includes a lightning protection switch, a metal guide plate, and a ground strap, which is installed between a steel structural column of a building and a ground. When the lightning protection switch is the off-state, the lightning protection system can let the steel structure post be insulating state with the ground, satisfies high-voltage test's requirement, if when having the thunderbolt this moment, just can release the heavy current that produces when the thunderbolt. When the lightning protection switch is the closure state, the lightning protection system can play the state that lets steel structure post and ground switch on, can release the electric current that the thunderbolt produced again, satisfies high-voltage test's requirement.
In a preferred embodiment of this embodiment, the ground electrode strip 41 is a galvanized copper bar, and the cross-sectional area of the ground electrode strip 41 is not less than 120mm2。
In the above, the cross-sectional area of the ground electrode strip is not less than 120mm2And the device is used for meeting the load during lightning impulse.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. The utility model provides a lightning protection switch in high-voltage testing hall, its characterized in that, lightning protection switch includes insulation board, first metal sheet, second metal sheet and plug-in strip switch, first metal sheet with be equipped with the gap between the second metal sheet and all locate on the insulation board, the plug-in strip switch includes first splint, second splint and plug-in strip, first splint with the second splint are located respectively first metal sheet with on the second metal sheet, the one end rotatable coupling of plug-in strip is on first splint and drive the other end of plug-in strip swings between on-position and off-position, the other end of plug-in strip when the on-position with the contact of second splint, the other end of plug-in strip when the off-position with the second breaks away from splint.
2. A high voltage test hall lightning protection switch according to claim 1, characterised in that said first metal sheet is provided with first serrations and said second metal sheet is provided with second serrations, the crests of one of said first serrations and said second serrations being disposed opposite the troughs of the other.
3. A high voltage test hall lightning protection switch according to claim 1, and wherein the gap between said first metal sheet and said second metal sheet ranges from 0.5mm to 1.5 mm.
4. A high voltage test hall lightning protection switch according to claim 3, characterised in that the width of the gap between said first metal sheet and said second metal sheet is 1 mm.
5. A high voltage test hall lightning protection switch as claimed in claim 1, wherein said first and second metal sheets have a cross-sectional area of not less than 120mm2。
6. A high voltage test hall lightning protection switch as claimed in claim 1, wherein said first clamping plate and said second clamping plate are bolted to said first metal plate and said second metal plate.
7. A high voltage test hall lightning protection switch according to claim 1, characterised in that the insulating plate is made of epoxy laminated glass cloth sheet.
8. A high voltage test hall lightning protection switch according to claim 1, characterised in that said first metal sheet and said second metal sheet are galvanized copper bars.
9. A lightning protection system in a high voltage test hall comprising a lightning protection switch according to any one of claims 1 to 8, a metal guide plate and a grounding electrode strip, wherein one of the first clamping plate and the second clamping plate is connected with the metal guide plate, the other one of the first clamping plate and the second clamping plate is connected with the grounding electrode strip, the metal guide plate is electrically connected with a steel structure of the high voltage test hall, and the grounding electrode strip is electrically connected with the grounding electrode plate.
10. The lightning protection system of a high voltage test hall as claimed in claim 9, wherein the grounding strap is a galvanized copper bar, and the cross-sectional area of the grounding strap is not less than 120mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122325085.9U CN216209362U (en) | 2021-09-24 | 2021-09-24 | Lightning protection switch and system in high-voltage test hall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122325085.9U CN216209362U (en) | 2021-09-24 | 2021-09-24 | Lightning protection switch and system in high-voltage test hall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216209362U true CN216209362U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122325085.9U Active CN216209362U (en) | 2021-09-24 | 2021-09-24 | Lightning protection switch and system in high-voltage test hall |
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| Country | Link |
|---|---|
| CN (1) | CN216209362U (en) |
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2021
- 2021-09-24 CN CN202122325085.9U patent/CN216209362U/en active Active
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