Grounding device in power distribution room

Abstract

The utility model provides a grounding device in a power distribution room, and relates to the technical field of lightning protection and grounding of electrical equipment. The grounding device in the power distribution room comprises a fixing assembly and a grounding assembly. The grounding assembly comprises a conductive part and a grounding part, the grounding part is connected with the conductive part, the conductive part is used for being connected with a shell of the electrical equipment, the conductive part is used for being connected with a wall face in the power distribution room through the fixing assembly so as to suspend above the ground in the power distribution room, and the grounding part is used for being connected with a main ground net. Therefore, by arranging the conductive piece and the grounding piece, the shell of the electrical equipment, the conductive piece, the grounding piece and the main ground screen form a communicated equipotential band, direct connection and local potential difference generation of the shell of the electrical equipment and the main ground screen are avoided, the electrical equipment is protected, and the lightning protection effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of lightning protection and grounding for electrical equipment, and particularly to a grounding device in a distribution room. Background Art

[0002] When lightning strikes, potential differences will be generated between various metal objects and various electrical systems, resulting in lightning-caused fires, explosions, equipment damage, and personal injuries and deaths. In order to ensure the safe operation of electrical equipment, lightning protection facilities need to be installed in buildings.

[0003] In the prior art, ground wires or equipotential terminal boxes are installed in a substation or a transformer room, and the ground wires or equipotential terminal boxes are directly connected to the outer shell of the electrical equipment.

[0004] However, in the above prior art, the direct connection between the ground wire and the outer shell of the electrical equipment easily generates local potential differences, makes the electrical equipment charged, damages the electrical equipment, and has a poor lightning protection effect. Utility Model Content

[0005] This application provides a grounding device in a distribution room to solve the problems that the direct connection between the ground wire and the outer shell of the electrical equipment easily generates local potential differences, makes the electrical equipment charged, damages the electrical equipment, and has a poor lightning protection effect.

[0006] To achieve the above object, the technical solution of this application is as follows:

[0007] A grounding device in a distribution room provided by this application includes a fixing component and a grounding component;

[0008] The grounding component includes a conductive member and a grounding member. The grounding member is connected to the conductive member. The conductive member is used to connect to the outer shell of the electrical equipment, and the conductive member is used to connect to the wall surface in the distribution room through the fixing component to be suspended above the ground in the distribution room. The grounding member is used to connect to the main grounding grid.

[0009] In a possible implementation manner, for the grounding device in a distribution room provided by this application, the conductive member includes an equipotential copper bar and a group of connecting copper bars arranged at multiple intervals on the equipotential copper bar. The equipotential copper bar is annular, the grounding member is used to wind around the circumferential side of the wall surface in the distribution room, and the group of connecting copper bars is used to correspondingly connect to the outer shell of the electrical equipment.

[0010] In a possible implementation, for the grounding device in the distribution room provided by the present application, the equipotential copper bar is formed by overlapping the two ends of a copper strip, and the overlapping length of the two ends of the copper plate is not less than [multiple] times the width of the copper plate. In a possible implementation, for the grounding device in the distribution room provided by the present application, the copper strip includes a main body and first and second overlapping sections provided at both ends of the main body. The first overlapping section covers the second overlapping section, the first overlapping section and the second overlapping section are welded, and the ends of the first overlapping section and the second overlapping section are both welded to the main body.

[0011] In a possible implementation, for the grounding device in the distribution room provided by the present application, each connecting copper bar group includes at least two connecting copper bars.

[0012] In a possible implementation, for the grounding device in the distribution room provided by the present application, the grounding part is a grounding copper bar.

[0013] In a possible implementation, for the grounding device in the distribution room provided by the present application, the number of grounding copper bars is two, and the two grounding copper bars are arranged oppositely.

[0014] In a possible implementation, for the grounding device in the distribution room provided by the present application, the number of fixing components is multiple. The fixing components include insulating columns and fasteners. The multiple insulating columns are used to be arranged at intervals around the equipotential copper bar on the wall surface in the distribution room;

[0015] Connection holes are provided on the equipotential copper bar, and the fasteners are connected to the insulating columns through the connection holes.

[0016] In a possible implementation, for the grounding device in the distribution room provided by the present application, an anti-corrosion layer is provided on the equipotential copper bar.

[0017] In a possible implementation, for the grounding device in the distribution room provided by the present application, the anti-corrosion layer is a paint layer.

[0018] A grounding device in a distribution room provided by the present application includes a fixing component and a grounding component; the grounding component includes a conductive part and a grounding part, the grounding part is connected to the conductive part, the conductive part is used to connect to the shell of an electrical device, and the conductive part is used to connect to the wall surface in the distribution room through the fixing component to be suspended above the ground in the distribution room, and the grounding part is used to connect to the main grounding grid. By arranging the conductive part and the grounding part between the main grounding grid and the shell of the electrical device, direct connection between the shell of the electrical device and the main grounding grid is avoided. The conductive part is connected to the shell of the electrical device, and the grounding part is connected to the conductive part. Since the grounding part is connected to the main grounding grid, the shell of the electrical device, the conductive part, the grounding part and the main grounding grid are connected and have the same potential. The electricity accidentally leaked from the shell of the electrical device flows through the conductive part and into the main grounding grid through the grounding part, protecting the electrical device and personal safety. Therefore, by arranging the conductive part and the grounding part, an equipotential band that is connected is formed among the shell of the electrical device, the conductive part, the grounding part and the main grounding grid, avoiding direct connection between the shell of the electrical device and the main grounding grid and generating local potential differences, protecting the electrical device and improving the lightning protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the present application and used together with the description to explain the principles of the present application.

[0020] Figure 1 It is a schematic structural diagram of the grounding device in the distribution room provided by the embodiment of the present application;

[0021] Figure 2 It is a schematic structural diagram of the conductive part in the grounding device in the distribution room provided by the embodiment of the present application;

[0022] Figure 3 It is a schematic structural diagram of the fastener in the grounding device in the distribution room provided by the embodiment of the present application;

[0023] Figure 4 It is a schematic structural diagram of the lap joint in the grounding device in the distribution room provided by the embodiment of the present application.

[0024] DESCRIPTION OF THE REFERENCE NUMERALS:

[0025] 100 - fixing component;

[0026] 110 - insulating column;

[0027] 120 - fastener;

[0028] 200 - grounding component;

[0029] 210 - conductive part; 211 - equipotential copper bar; 212 - connecting copper bar group; 213 - connecting hole;

[0030] 220 - grounding part;

[0031] 230 - Copper bar; 231 - Main body; 232 - First overlapping section; 233 - Second overlapping section;

[0032] 400 - Electrical equipment.

[0033] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0034] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0035] It should be noted that in the description of the embodiments of the present application, the terms indicating the orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present application.

[0036] In addition, it should also be noted that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0037] In the present application, unless otherwise clearly defined and limited, the terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present application can be understood according to specific situations.

[0038] First, the relevant concepts or terms involved in the present application are explained:

[0039] Distribution room: A facility used for distributing and controlling electrical power supply. Its main function is to distribute electrical power to different circuits and devices and provide corresponding protection and control measures. A distribution room usually includes a main distribution board, branch distribution boards, electrical energy metering devices, power load management equipment, protection equipment, and control equipment.

[0040] Grounding: Connecting the metal shell or other conductive parts of electrical equipment to the ground so that when a fault occurs in the equipment, the current can be discharged through the ground. Its main purpose is to ensure the safe operation of the circuit or equipment, prevent problems such as current overload, voltage leakage, and static electricity accumulation, and protect personal safety.

[0041] Arc: When current passes through the air or medium between two electrodes, due to local potential differences, local high temperatures and high energies are generated, resulting in arc light and arc-shaped flames in the current path.

[0042] When lightning strikes, potential differences will be generated between various metal objects and electrical systems, leading to equipment damage and personal injury accidents. Therefore, lightning protection facilities need to be installed in buildings.

[0043] In the prior art, according to the grounding requirements of building electrical installations in the "Code for Construction and Acceptance of Earthing Devices of Electrical Installations", a ring-shaped earthing busbar should be installed in the substation or transformer room and connected to the earthing wire or equipotential terminal box, and the number of connecting earthing wires should be no less than 2; the earthing wire or equipotential terminal box is directly connected to the metal shell of the electrical equipment. By directly connecting the metal part of the electrical equipment to the ground, a low-resistance path is formed, enabling the current to flow safely into the ground. However, this direct connection of the earthing wire to the metal shell of the electrical equipment may cause the current to flow back to the ground, especially during thunderstorms when the air and soil are humid, increasing the possibility of electric shock. In addition, direct grounding will increase the potential difference of the grounding system, increasing the local potential difference between equipment, which may trigger arc discharges and fires between electrical equipment, damage the electrical equipment, and the lightning protection effect is poor.

[0044] Based on this, a grounding device in a distribution room provided by this application includes a fixing component and a grounding component; the grounding component includes a conductive part and a grounding part, the grounding part is connected to the conductive part, the conductive part is used to connect to the shell of the electrical equipment, and the conductive part is used to connect to the wall surface in the distribution room through the fixing component to be suspended above the ground in the distribution room, and the grounding part is used to connect to the main grounding grid. By arranging the conductive part and the grounding part between the main grounding grid and the shell of the electrical equipment, it is avoided that the shell of the electrical equipment is directly connected to the main grounding grid. The conductive part is connected to the shell of the electrical equipment, and the grounding part is connected to the conductive part. Since the grounding part is connected to the main grounding grid, the shell of the electrical equipment, the conductive part, the grounding part and the main grounding grid are connected and have the same potential. The electricity accidentally leaked from the shell of the electrical equipment flows through the conductive part and flows into the main grounding grid through the grounding part, protecting the electrical equipment and personal safety. Therefore, by arranging the conductive part and the grounding part, an equipotential band is formed by the shell of the electrical equipment, the conductive part, the grounding part and the main grounding grid, avoiding the direct connection between the shell of the electrical equipment and the main grounding grid and generating local potential differences, protecting the electrical equipment and improving the lightning protection effect.

[0045] The following combines Figures 1 to 4 and specific embodiments to elaborate on this application in detail.

[0046] Figure 1 It is a schematic structural diagram of the grounding device in the distribution room provided by the embodiment of this application; Figure 2 It is a schematic structural diagram of the conductive part in the grounding device in the distribution room provided by the embodiment of this application; Figure 3 It is a schematic structural diagram of the fastener in the grounding device in the distribution room provided by the embodiment of this application; Figure 4 It is a schematic structural diagram of the lap joint in the grounding device in the distribution room provided by the embodiment of this application.

[0047] Combining Figure 1 and Figure 2 , a grounding device in a distribution room provided by this application includes a fixing component 100 and a grounding component 200; the grounding component 200 includes a conductive part 210 and a grounding part 220, the grounding part 220 is connected to the conductive part 210, the conductive part 210 is used to connect to the shell of the electrical equipment 400, the conductive part 210 is used to connect to the wall surface in the distribution room through the fixing component 100 to be suspended above the ground in the distribution room, and the grounding part 220 is used to connect to the main grounding grid.

[0048] In specific implementation, the fixing component 100 and the grounding component 200 are integrally arranged on the wall. The fixing component 100 is used to fix the grounding component 200 to prevent the grounding component 200 from directly contacting the wall surface in the distribution room. The grounding component 200 includes a conductive member 210 and a grounding member 220. The conductive member 210 is connected to the wall surface in the distribution room through the fixing component 100 and is suspended above the ground in the distribution room. The conductive member 210 is connected to the shell of the electrical equipment 400, and the grounding member 220 is connected to the conductive member 210. Since the grounding member 220 is connected to the main grounding grid, the potentials of the shell of the electrical equipment 400, the conductive member 210, the grounding member 220, and the main grounding grid are the same, eliminating the local potential difference and forming a connected equipotential band. This can not only quickly introduce the current struck by lightning into the ground but also help eliminate the interference of the external electromagnetic field on the internal electronic equipment in the protected area, improve the electromagnetic compatibility of the electronic equipment, and avoid the occurrence of electric arcs and fires.

[0049] In some embodiments, to facilitate the quick connection between the grounding member 220 and the main grounding grid, a detachable locking nut can be pre-set on the main grounding grid. The grounding member 220 is passed through the locking nut, and then the locking nut is screwed to connect the grounding member 220 to the main grounding grid. Alternatively, the grounding member 220 can be connected to the main grounding grid by welding.

[0050] When lightning strikes or the internal insulator of the electrical equipment 400 ages or is damaged, the electrical equipment 400 may accidentally leak electricity, and the electricity may be transmitted to its metal shell. These currents will flow through the conductive member 210, flow into the main grounding grid through the grounding member 220, and then flow into the ground through the ground wire of the main grounding grid, realizing the grounding of the shell of the electrical equipment 400. People will not get an electric shock when touching the charged metal shell, protecting the electrical equipment and personal safety. At the same time, this equipotential band enables the electrical equipment 400 located on the equipotential band to be indirectly connected to the main grounding grid and have the same potential, avoiding arc discharges and fires between the electrical equipment 400.

[0051] The present application provides a grounding device in a distribution room, including a fixing component 100 and a grounding component 200; the grounding component 200 includes a conductive member 210 and a grounding member 220, the grounding member 220 is connected to the conductive member 210, the conductive member 210 is used to be connected to the casing of the electrical equipment 400, the conductive member 210 is used to be connected to the wall in the distribution room through the fixing component 100 so as to be suspended above the ground in the distribution room, and the grounding member 220 is used to be connected to the main ground grid. By arranging the conductive member 210 and the grounding member 220 between the main earth grid and the shell of the electrical device 400, the shell of the electrical device 400 is prevented from being directly connected to the main earth grid. The conductive member 210 is connected to the shell of the electrical device 400, and the grounding member 220 is connected to the conductive member 210. Since the grounding member 220 is connected to the main earth grid, the shell of the electrical device 400, the conductive member 210, the grounding member 220 and the main earth grid are connected and have the same potential. The electricity accidentally leaked from the shell of the electrical device 400 flows through the conductive member 210 and flows into the main earth grid through the grounding member 220, thereby protecting the electrical device and personal safety. Therefore, by arranging the conductive member 210 and the grounding member 220, the shell of the electrical device 400, the conductive member 210, the grounding member 220 and the main earth grid form a connected equipotential zone, thereby preventing the shell of the electrical device 400 from being directly connected to the main earth grid and generating a local potential difference, thereby protecting the electrical device 400 and improving the lightning protection effect.

[0052] Combination Figure 1 and Figure 2 In some embodiments, the grounding device in the distribution room provided by the present application, the conductive member 210 includes an equipotential copper busbar 211 and a connecting copper busbar group 212 arranged on the equipotential copper busbar 211 at multiple intervals, the equipotential copper busbar 211 is ring-shaped, the grounding member 220 is used to be arranged around the wall in the distribution room, and the connecting copper busbar group 212 is used to be connected to the casing of the electrical equipment 400.

[0053] In a specific implementation, the equipotential copper bar 211 is in a ring shape, and a plurality of connecting copper bar groups 212 are arranged at intervals on the equipotential copper bar 211, and the connecting copper bar groups 212 are correspondingly connected to the housing of the electrical equipment 400. The grounding piece 220 is arranged around the wall surface in the power distribution room. When multiple power distribution rooms are on the same floor, the walls between the power distribution rooms can be opened up, and the equipotential copper bar 211 passes through the wall to form an overall ring shape.

[0054] When lightning occurs, the current of the electrical equipment 400 is transmitted to the casing of the electrical equipment 400, and the copper busbar group 212 is connected to the casing of the electrical equipment 400. After the copper busbar group 212 and the conductive member 210 are connected, the grounding member 220 is connected to the main ground grid, and the current is quickly introduced into the underground, reducing the impact of lightning on the distribution room.

[0055] In some embodiments, the equipotential copper busbar 211 can be bent, cut, and connected according to actual requirements to adapt to electrical equipment with different shapes and layouts, providing a more flexible installation and wiring method, which is not limited in this application.

[0056] Combined with Figures 1 to 4 , in some embodiments, for the grounding device in the distribution room provided in this application, the equipotential copper busbar 211 is formed by overlapping the two ends of the copper strip 230, and the overlapping length of the two ends of the copper plate is not less than 2 times the width of the copper plate.

[0057] In specific implementation, the equipotential copper busbar 211 can adopt a copper strip 230 with a size of 40mm * 4mm (width multiplied by thickness). The equipotential copper busbar 211 is formed by overlapping the two ends of the copper strip 230. The parts at the joints of the two ends of the copper strip 230 overlap each other, and a welding joint is formed at the overlapping part. Then, welding material is filled at the welding joint through welding.

[0058] During welding, double-sided welding can be adopted. In double-sided welding, heat and welding material during the welding process are applied from both sides respectively, so that the welding joint is simultaneously affected by heat from both sides, thereby achieving more uniform heat input and cooling. This can reduce the deformation and residual stress of the welding joint and improve the quality and strength of the welding joint.

[0059] To ensure the firm overlap of the two ends of the copper strip 230, the overlapping length of the two ends of the copper plate is not less than 2 times the width of the copper plate. Combined with Figure 1 、 Figure 2 and Figure 3 , in some embodiments, for the grounding device in the distribution room provided in this application, the copper strip 230 includes a main body 231 and a first overlapping section 232 and a second overlapping section 233 arranged at both ends of the main body 231. The first overlapping section 232 covers the second overlapping section 233, the first overlapping section 232 and the second overlapping section 233 are welded, and the ends of both the first overlapping section 232 and the second overlapping section 233 are welded to the main body 231.

[0060] In specific implementation, the copper strip 230 is in the shape of a thin and flat strip, a long conductor with a rectangular cross-section or a rectangular cross-section with rounded corners. The copper strip 230 includes a main body 231. At both ends of the main body 231, a first overlapping section 232 and a second overlapping section 233 are arranged. The ends of both the first overlapping section 232 and the second overlapping section 233 are welded to the main body 231. The first overlapping section 232 covers the second overlapping section 233, and the first overlapping section 232 and the second overlapping section 233 overlap each other, and a welding joint is formed at the overlapping part. Then, welding material is filled at the welding joint through welding.

[0061] Combined with Figure 1 and Figure 2 , in some other embodiments, for the grounding device in the distribution room provided in this application, each connecting copper busbar group 212 includes at least two connecting copper busbars.

[0062] In specific implementation, the housing of the electrical device 400 is connected to at least two connecting copper bars, meeting the grounding requirements of the electrical installation in buildings in the "Code for Construction and Acceptance of Earthing Devices Installation Project for Electrical Installations", that is, the number of earthing wires connected to the electrical device is not less than 2.

[0063] In some embodiments, in order to improve the connection strength between the housing of the electrical device 400 and the connecting copper bar, the housing of the electrical device 400 is connected to the connecting copper bar, and two connecting copper bars are added at both ends of the housing of the electrical device 400. The two connecting copper bars are connected to the connecting copper bar connected to the housing of the electrical device 400 through bolts, and the connecting copper bar connected to the housing of the electrical device 400 is clamped in the middle.

[0064] Among them, for the earthing device in the distribution room provided by the present application, the earthing part 220 is an earthing copper bar.

[0065] In specific implementation, the earthing copper bar is in a long strip shape with a rectangular cross-section, and can be cut according to specific application requirements and site space to adjust the shape and size.

[0066] Optionally, for the earthing device in the distribution room provided by the present application, the number of earthing copper bars is two, and the two earthing copper bars are arranged oppositely.

[0067] In specific implementation, the earthing copper bar has a low resistivity and a large bendability. The number of earthing copper bars is two, and the two earthing copper bars are arranged oppositely, and can be adjusted according to the layout position of the main earthing grid.

[0068] Combined with Figure 1 、 Figure 2 and Figure 3 , in some embodiments, for the earthing device in the distribution room provided by the present application, the number of fixing components 100 is multiple. The fixing component 100 includes an insulating column 110 and a fastener 120. The multiple insulating columns 110 are used to be arranged at intervals around the equipotential copper bar 211 on the wall surface in the distribution room;

[0069] Connection holes 213 are arranged on the equipotential copper bar 211, and the fastener 120 is connected to the insulating column 110 through the connection holes 213.

[0070] In specific implementation, due to the large area of the distribution room, the length span of the equipotential copper busbar 211 is large. To avoid uneven stress on the equipotential copper busbar 211 and prevent it from shaking, a plurality of fixing components can be provided to fix the equipotential copper busbar 211. The fixing components include an insulating column 110 and a fastener 120. The insulating column 110 is columnar and is arranged at intervals around the equipotential copper busbar 211 on the wall of the distribution room. In some embodiments, an insulating coating is provided on the surface of the insulating column 110. Connection holes 213 are provided on the equipotential copper busbar 211, and the fastener 120 is connected to the insulating column 110 through the connection holes 213.

[0071] In some embodiments, the bottom of the fastener 120 is provided with a thread, the head is provided with a round flat head, and it is columnar. Corresponding threaded holes are provided on the insulating column 110. The fastener 120 passes through the connection holes 213 and is threadedly connected to the threaded holes, and the equipotential copper busbar 211 is fixed on the insulating column 110 through the fastener 120. The fastener 120 can be fixed by using a bolt, and this application does not limit this, as long as the equipotential copper busbar 211 can be fixed on the insulating column 110. Exemplarily, the fastener 120 can be fixed by using a screw.

[0072] In the grounding device in the distribution room in the embodiments of this application, the equipotential copper busbar 211 is fixed on the insulating column 110 through the insulating column 110 and the fastener 120.

[0073] In some embodiments, for the grounding device in the distribution room provided in this application, an anti-corrosion layer is provided on the equipotential copper busbar 211.

[0074] In specific implementation, an anti-corrosion layer is provided on the surface of the equipotential copper busbar 211. The anti-corrosion layer can be a physical barrier or a chemical layer, which is used to prevent the corrosive medium from contacting the equipotential copper busbar 211 and prevent the equipotential copper busbar 211 from being corroded, worn or oxidized. In some embodiments, in order to improve the protection effect, multiple anti-corrosion layers can be provided.

[0075] In the anti-corrosion layer in the embodiments of this application, by providing an anti-corrosion layer on the equipotential copper busbar 211, it is beneficial to reduce the loss of the equipotential copper busbar 211 and extend the service life of the equipotential copper busbar 211.

[0076] Optionally, for the grounding device in the distribution room provided in this application, the anti-corrosion layer is a paint layer.

[0077] In specific implementation, the surface of the equipotential copper busbar 211 can be painted with yellow and green paint. This paint layer, on the one hand, can provide a protective layer for the equipotential copper busbar 211 to prevent corrosion and oxidation and has certain waterproof performance; on the other hand, the surface of the paint layer is flat and smooth, which is convenient for daily cleaning and maintenance.

[0078] Other embodiments of the present application will be readily apparent to those skilled in the art upon consideration of the specification and practice of the disclosure herein. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0079] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A grounding device in a power distribution room, characterized in that: It comprises a fixing component (100) and a grounding component (200); The grounding assembly (200) comprises a conductive member (210) and a grounding member (220); the conductive member (210) comprises an equipotential copper bar (211) and a plurality of connecting copper bar groups (212) arranged at intervals on the equipotential copper bar (211); the equipotential copper bar (211) is annular; the grounding member (220) is used to be arranged around the wall surface in the power distribution room; the connecting copper bar group (212) is used to be connected to a housing of the electrical equipment (400); the grounding member (220) is connected to the conductive member (210); the conductive member (210) is used to be connected to the wall surface in the power distribution room through the fixing assembly (100) so as to be suspended above the ground surface in the power distribution room; and the grounding member (220) is used to be connected to a main ground grid.

2. The grounding device in the power distribution room according to claim 1, characterized in that: The equipotential copper busbar (211) is formed by overlapping the two ends of a copper strip (230), and the overlapping length of the two ends of a copper plate is not less than twice the width of the copper plate.

3. The grounding device in the power distribution room according to claim 2, characterized in that: The copper strip (230) comprises a main body (231) and a first overlapping section (232) and a second overlapping section (233) arranged at two ends of the main body (231), the first overlapping section (232) covering the second overlapping section (233), the first overlapping section (232) and the second overlapping section (233) being welded, and the ends of the first overlapping section (232) and the second overlapping section (233) are both welded to the main body (231).

4. The grounding device in the power distribution room according to claim 1, characterized in that: Each of the connecting copper bar groups (212) comprises at least two connecting copper bars.

5. The grounding device in the power distribution room according to claim 1, characterized in that: The grounding member (220) is a grounding copper busbar.

6. The grounding device in the power distribution room according to claim 5, characterized in that: The number of the grounding copper bars is two, and the two grounding copper bars are arranged opposite to each other.

7. The grounding device in the power distribution room according to claim 1, characterized in that: There are a plurality of fixing assemblies (100), each of the fixing assemblies (100) comprising an insulating column (110) and a fastener (120), wherein the plurality of insulating columns (110) are arranged at intervals on a wall surface in the power distribution room around the equipotential copper busbar (211); The equipotential copper busbar (211) is provided with a connection hole (213), and the fastener (120) is connected to the insulating column (110) via the connection hole (213).

8. The grounding device in the power distribution room according to any one of claims 1 to 5, characterized in that: An anti-corrosion layer is provided on the equipotential copper busbar (211).

9. The grounding device in the power distribution room according to claim 8, characterized in that: The anti-corrosion layer is a paint layer.

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