Arc discharge assembly and electrical cabinet

Abstract

The utility model discloses an arc discharge assembly and an electrical cabinet, the arc discharge assembly is assembled at a ventilation through hole of a top plate of the electrical cabinet, the arc discharge assembly comprises an arc discharge window cover unit, an arc discharge window body unit, a first connection unit and a second connection unit, the arc discharge window cover unit is connected with the arc discharge window body unit through the first connection unit, and the arc discharge window body unit is connected with the second connection unit through the second connection unit. The arc discharge window cover unit is further connected with the top plate through a second connecting unit, and the second connecting unit can enable the arc discharge window cover unit and the top plate to generate movement amount in a state of keeping connection; the strength of the first connecting unit is smaller than that of the second connecting unit. The arc discharge assembly is designed in a modular mode, and the expandability is high; the device is installed at the top of the electrical cabinet, thereby saving the space occupation of the electrical cabinet in width and depth. The strength of the first connecting unit is smaller than that of the second connecting unit, so that although the arc discharge window cover unit is opened relative to the arc discharge window body unit, the arc discharge window cover unit is not separated from the top plate, and the situation that surrounding workers or other equipment are affected after the arc discharge window cover unit flies out under the impact of gas is avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, and in particular to an arc-venting component and an electrical cabinet. Background Technology

[0002] As a crucial component of wind power generation systems, electrical cabinets perform multiple functions, including power conversion, grid-connected power transmission, and fault protection, placing high demands on their reliability and safety. However, accidents caused by internal arcing faults cannot be completely avoided due to factors such as insulation aging, misoperation, foreign objects, and overvoltage. To release the rapidly expanding, high-temperature, and high-pressure gas generated by an arcing explosion, several arc-venting window assemblies are typically designed on the cabinet's sealed doors. These vents can be opened by impact to release the internal arcing energy. This structure allows the highly expanding, high-temperature, and high-pressure gas inside the cabinet to be quickly released through the arc-venting window assemblies when an arcing explosion occurs, preventing damage to other internal components.

[0003] To install the arc-venting window assembly, the traditional method requires setting an arc-venting port on the door panel of the electrical cabinet, and then sealing the port with an arc-venting plate. The upper part of the arc-venting plate is strongly connected to the upper part of the arc-venting port via a hinge, while the lower part of the arc-venting plate is weakly connected to the lower part of the arc-venting port via a magnetic attraction. When the arc generates high-temperature, high-pressure gas, it breaks through the weak magnetic attraction connection below, causing the arc-venting plate to open and release the high-temperature, high-pressure gas.

[0004] In contrast to the traditional method, the arc-venting window component is installed on the cabinet door panel, protruding from the cabinet door panel plane. This increases the width and depth of the cabinet, which places strict requirements on space. At the same time, when the arc is ignited, it will spray out from the parts of the cabinet with the arc-venting window component, such as the front, side or back of the cabinet, which is quite dangerous. Utility Model Content

[0005] The embodiments of this utility model provide an arc-extinguishing component and an electrical cabinet, which solves the space requirements of traditional arc-extinguishing components for electrical cabinets and the safety hazards they pose.

[0006] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides an arc-venting assembly, which is mounted on the top plate of an electrical cabinet. The arc-venting assembly includes an arc-venting window cover unit, an arc-venting window body unit, a first connecting unit, and a second connecting unit. The arc-venting window body unit is mounted at a ventilation hole in the top plate. The arc-venting window cover unit is connected to the arc-venting window body unit via the first connecting unit, and the arc-venting window cover unit is also connected to the top plate via the second connecting unit. The second connecting unit enables the arc-venting window cover unit to move while maintaining connection with the top plate. The strength of the first connecting unit is less than the strength of the second connecting unit.

[0007] In some embodiments, the arc-venting window cover unit includes a window cover body, a window cover side plate, and a first sealing strip. The side of the window cover body is bent downward to form the window cover side plate, and the first sealing strip is disposed within the space enclosed by the window cover side plate.

[0008] In some embodiments, the arc-damping window unit includes a window body, a window extension, and a window flange. The window body is a closed structure, with its bottom surface bent outward to form the window extension, and the top surface of the window body bent inward to form the window flange. When the arc-damping window cover unit is engaged with the arc-damping window unit, the first sealing strip is tightly attached to the window flange.

[0009] In some embodiments, the window cover side plate has a side plate through hole, and the window body has a window body threaded blind hole. The first connecting unit passes through the side plate through hole and the window body threaded blind hole and connects the arc-venting window cover unit and the arc-venting window body unit.

[0010] In some embodiments, a second sealing strip is provided at the ventilation hole, and the bottom surface of the arc-venting window unit has a step. When the arc-venting window unit is engaged with the ventilation hole, the second sealing strip can be snapped onto the step.

[0011] In some embodiments, the second connecting unit includes a constraint rope and a first ring and a second ring respectively disposed at both ends of the constraint rope; the first ring is fixed to the window cover body, and the second ring passes through the window extension and is connected to the top plate; wherein the constraint rope is made of stainless steel.

[0012] In some embodiments, the second connecting unit further includes a first bolt, and the window cover body has a first blind hole. After the first bolt passes through the first ring, it fixes one end of the restraint rope to the first blind hole.

[0013] In some embodiments, the second connecting unit further includes a second bolt, the window extension has a through hole, the top plate has a threaded blind hole, and the second bolt passes through the second ring and the through hole in sequence to fix the other end of the constraint rope to the threaded blind hole.

[0014] In some embodiments, the first connecting unit includes a washer and a screw, the screw passing sequentially through the washer, the side plate through hole, and the window thread blind hole; wherein the screw is made of plastic or nylon.

[0015] According to another aspect of this application, an embodiment of the present invention provides an electrical cabinet that includes the arc-extinguishing assembly described above.

[0016] Compared with the prior art, the arc-extinguishing assembly of this utility model has at least the following beneficial effects:

[0017] The arc-extinguishing assembly provided by this utility model is assembled on the top plate of an electrical cabinet. The arc-extinguishing assembly includes an arc-extinguishing window cover unit, an arc-extinguishing window body unit, a first connecting unit, and a second connecting unit. The arc-extinguishing window body unit is assembled at the ventilation hole of the top plate. The arc-extinguishing window cover unit is connected to the arc-extinguishing window body unit through the first connecting unit. The arc-extinguishing window cover unit is also connected to the top plate through the second connecting unit. The second connecting unit enables the arc-extinguishing window cover unit to move while maintaining connection with the top plate. The strength of the first connecting unit is less than the strength of the second connecting unit.

[0018] When an arc fault occurs inside the electrical cabinet, the internal temperature rises, generating a large amount of gas and energy. If this energy cannot be released in time, it may cause the switchgear to explode, or even trigger a fire or a rebound of the blast shock wave, causing serious injury to operators and other equipment. The arc-venting assembly provided in this embodiment ensures the safety of operators and reduces damage to other equipment by venting the pressure, flame, and harmful gases generated by the arc to the outside. Importantly, the arc-venting assembly in this embodiment is located at the top of the electrical cabinet, avoiding safety hazards to people around the electrical cabinet; at the same time, the arc-venting assembly is modular in design and highly expandable; and, being installed at the top of the electrical cabinet saves space in terms of width and depth; and the strength of the first connecting unit is less than that of the second connecting unit, so that although the arc-venting window cover unit is open relative to the arc-venting window body unit, it does not detach from the top plate, preventing it from flying out under the impact of high-temperature and high-pressure gas and affecting surrounding workers or other equipment.

[0019] The electrical cabinet provided by this utility model is designed based on the above-mentioned arc-extinguishing component. Its beneficial effects are the same as those of the above-mentioned arc-extinguishing component, and will not be repeated here.

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the structure of an arc-venting component and an electrical cabinet provided by an embodiment of this utility model;

[0023] Figure 2 This is an exploded view of an arc-venting component and its cooperation with an electrical cabinet, provided by an embodiment of this utility model;

[0024] Figure 3 This is an exploded view of an arc-venting assembly provided in an embodiment of this utility model;

[0025] Figure 4 This is another exploded view of an arc-venting assembly provided in an embodiment of the present invention;

[0026] Figure label:

[0027] 1. Top plate; 11. Ventilation through hole; 12. Second sealing strip; 13. Threaded blind hole; 2. Arc-venting window cover unit; 21. Window cover body; 22. Window cover side plate; 23. First sealing strip; 221. Side plate through hole; 3. Arc-venting window body unit; 31. Window body; 32. Window extension; 33. Window flange; 34. Step; 311. Window threaded blind hole; 321. Through hole; 4. First connecting unit; 41. Gasket; 42. Screw; 5. Second connecting unit; 51. Restraint rope; 52. First ring; 53. Second ring; 54. First bolt; 55. Second bolt. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0029] In the description of this utility model, it should be clarified that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "back," "left," "right," "up," "down," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Arc venting in electrical cabinets refers to a technical measure that, when an arc fault occurs inside the electrical cabinet, rapidly discharges the high-temperature, high-pressure gas and energy generated by the arc through a pressure relief channel or device to protect equipment and personnel safety. When an arc fault occurs inside an electrical cabinet, the arc rapidly releases a large amount of energy, causing a sharp rise in internal pressure. If this energy is not released in time, it may cause serious damage to the switchgear and its surrounding environment, or even lead to an explosion. Therefore, the main function of the arc venting device is to rapidly discharge the high-temperature gas and pressure generated by the arc outside the cabinet through a pressure relief channel, thereby preventing injury to equipment and personnel.

[0032] Traditional arc-extinguishing devices are typically located on the front or rear of the electrical cabinet, increasing the space they occupy. Furthermore, during arc extinguishing, arcs can erupt from the front and sides of the cabinet, posing a safety hazard. This invention solves the space requirements and safety hazards associated with traditional arc-extinguishing components by changing their installation location.

[0033] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0034] Example 1

[0035] This embodiment provides an arc-venting component, such as... Figures 1-4 As shown, the arc-extinguishing assembly is mounted on the top plate 1 of the electrical cabinet. The arc-extinguishing assembly includes an arc-extinguishing window cover unit 2, an arc-extinguishing window body unit 3, a first connecting unit 4, and a second connecting unit 5. The arc-extinguishing window body unit 3 is mounted at the ventilation hole 11 of the top plate 1. The arc-extinguishing window cover unit 2 is connected to the arc-extinguishing window body unit 3 through the first connecting unit 4. The arc-extinguishing window cover unit 2 is also connected to the top plate 1 through the second connecting unit 5. The second connecting unit 5 enables the arc-extinguishing window cover unit 2 and the top plate 1 to move while maintaining connection. The strength of the first connecting unit 4 is less than the strength of the second connecting unit 5.

[0036] In this embodiment, the arc-venting assembly is an integral module, which includes an arc-venting window cover unit 2, an arc-venting window body unit 3, a first connecting unit 4, and a second connecting unit 5. During installation, the entire arc-venting assembly can be installed at the ventilation hole 11 on the top plate 1, without the need to add additional connecting structures to the electrical cabinet.

[0037] Under the action of the first connecting unit 4, the arc-venting window cover unit 2 is connected to the arc-venting window body unit 3; under the action of the second connecting unit 5, the arc-venting window cover unit 2 is connected to the top plate 1. When an arc fault occurs inside the electrical cabinet, the arc will rapidly release a large amount of energy, causing the internal pressure to rise sharply. Under the action of the high-temperature and high-pressure gas inside the electrical cabinet, the arc-venting window cover unit 2 will bear a large impact. At this time, because the strength of the first connecting unit 4 is less than that of the second connecting unit 5, the arc-venting window cover unit 2 will separate from the arc-venting window body unit 3. However, under the action of the stronger second connecting unit 5, the arc-venting window cover unit 2 will not detach from the top plate 1; it will only maintain a certain distance from the top plate 1 while remaining connected to it. At this time, since the arc-venting window cover unit 2 has detached from the arc-venting window body unit 3, the high-temperature and high-pressure gas will be released through the top of the arc-venting window body unit 3. At the same time, because the second connecting unit 5 keeps the arc-venting window cover unit 2 connected to the top plate 1, it can prevent the arc-venting window cover unit 2 from being uncontrollably and randomly thrown off the top plate 1.

[0038] When an arc fault occurs inside the electrical cabinet, the internal temperature rises, generating a large amount of gas and energy. If this energy cannot be released in time, it may cause the switch cabinet to explode, or even trigger a fire or a rebound of the blast shock wave, causing serious injury to operators and other equipment. The arc-venting assembly provided in this embodiment ensures the safety of operators and reduces damage to other equipment by venting the pressure, flame, and harmful gases generated by the arc to the outside. Importantly, the arc-venting assembly in this embodiment is located on the top of the electrical cabinet, avoiding safety hazards to people around the electrical cabinet; at the same time, the arc-venting assembly is modularly designed and highly expandable; and, after being installed on the top of the electrical cabinet, it saves space in the width and depth of the electrical cabinet; and the strength of the first connecting unit 4 is less than that of the second connecting unit 5, so that although the arc-venting window cover unit 2 is opened relative to the arc-venting window body unit 3, it does not detach from the top plate 1, preventing it from flying out under the impact of high-temperature and high-pressure gas and affecting surrounding workers or other equipment.

[0039] In a specific embodiment, the arc-venting window cover unit 2 includes a window cover body 21, a window cover side plate 22, and a first sealing strip 23. The side of the window cover body 21 is bent downward to form the window cover side plate 22, and the first sealing strip 23 is disposed in the space enclosed by the window cover side plate 22.

[0040] More specifically, the window cover body 21 has a plate-like structure. For clarity, it is assumed that the window cover body 21 is a quadrilateral structure, with all four sides bent downwards to form four window cover side plates 22. Within the space enclosed by the four window cover side plates 22, a first sealing strip 23 is provided close to the lower surface of the window cover body 21. The shape of the first sealing strip 23 matches the shape of the window cover body 21. During the assembly of the arc-venting window cover unit 2 and the arc-venting window body unit 3, the first sealing strip 23 ensures the sealing effect of the arc-venting window cover unit 2 and the arc-venting window body unit 3.

[0041] In a specific embodiment, the arc-venting window unit 3 includes a window body 31, a window extension 32, and a window flange 33. The window body 31 is a closed structure, with its bottom surface bent outward to form the window extension 32, and its top surface bent inward to form the window flange 33. When the arc-venting window cover unit 2 and the arc-venting window unit 3 are engaged, the first sealing strip 23 is tightly attached to the window flange 33.

[0042] More specifically, the four vertical plates are connected end to end to form the window body 31. For clarity, let's assume the four vertical plates are the first, second, third, and fourth vertical plates. The tops of the first, second, third, and fourth vertical plates are bent inwards to form the window flange 33, and the bottoms are bent outwards to form the window extension 32. Each vertical plate, its corresponding window flange 33, and window extension 32 form a Z-shaped structure. Furthermore, when the arc-damping window cover unit 2 is fitted onto the window body 31, the first sealing strip 23 fits snugly against the window flange 33 and is compressed, achieving a seal between the arc-damping window cover unit 2 and the arc-damping window body unit 3.

[0043] In a specific embodiment, the window cover side plate 22 has a side plate through hole 221, and the window body 31 has a window body threaded blind hole 311. The first connecting unit 4 passes through the side plate through hole 221 and the window body threaded blind hole 311 to connect the arc-damping window cover unit 2 and the arc-damping window body unit 3. The side plate through hole 221 and the window body threaded blind hole 311 are mainly used to realize the connection between the arc-damping window cover unit 2 and the arc-damping window body unit 3. Multiple side plate through holes 221 and window body threaded blind holes 311 are provided, and they are arranged in a one-to-one correspondence.

[0044] In a specific embodiment, a second sealing strip 12 is provided at the ventilation hole 11, and the bottom surface of the arc-venting window unit 3 has a step 34. When the arc-venting window unit 3 is engaged with the ventilation hole 11, the second sealing strip 12 can be snapped into the step 34.

[0045] A second sealing strip 12 is provided around the ventilation hole 11 above the top plate 1, forming a complete enclosure. When the second sealing strip 12 is under compression, it can achieve a seal at the bottom of the modular arc-venting assembly. In order to ensure that the second sealing strip 12 is under reasonable compression to ensure the reliability of the seal, the bottom surface of the arc-venting window unit 3 is provided with a step, namely the aforementioned step 34. The step 34 ensures the amount of compression through the internal bottom surface contraction space.

[0046] In some specific embodiments, the second sealing strip 12 can also be attached to the bottom step surface of the window unit, in which case the top plate does not need to be fitted with a sealing strip (not shown in the figure).

[0047] In a specific embodiment, the second connecting unit 5 includes a constraint rope 51 and a first ring 52 and a second ring 53 respectively disposed at both ends of the constraint rope 51; the first ring 52 is fixed to the window cover body 21, and the second ring 53 passes through the window extension 32 and is connected to the top plate 1; wherein, the constraint rope 51 is made of stainless steel. The length of the constraint rope 51 can be adjusted according to actual needs, and its length determines the maximum distance between the arc-venting window cover unit 2 and the top plate 1. Meanwhile, the constraint rope 51 is made of stainless steel, and using the same material ensures the strength of the constraint rope 51.

[0048] In a specific embodiment, the second connecting unit 5 further includes a first bolt 54. The window cover body 21 has a first blind hole. After the first bolt 54 passes through the first ring 52, it fixes one end of the restraint rope 51 to the first blind hole. In this embodiment, the second connecting unit 5 is connected to the window cover body 21 and the restraint rope 51 through the first bolt 54 and the first blind hole; wherein, the first blind hole can ensure the sealing of the bottom of the window cover body 21.

[0049] In a specific embodiment, the second connecting unit 5 further includes a second bolt 55, the window extension 32 has a through hole 321, the top plate 1 has a threaded blind hole 13, and the second bolt 55 passes through the second ring 53 and the through hole 321 in sequence to fix the other end of the constraint rope 51 to the threaded blind hole 13.

[0050] In a specific embodiment, the first connecting unit 4 includes a washer 41 and a screw 42, the screw 42 passing sequentially through the washer 41, the side plate through hole 221, and the window thread blind hole 311; wherein, the screw 42 is made of plastic or nylon. In this embodiment, the screw 42 is made of a specific material that is susceptible to shear failure, preferably plastic, nylon, or other materials whose strength is much weaker than steel.

[0051] The assembly form of the arc-extinguishing assembly provided in this embodiment is as follows:

[0052] The first bolt 54 passes through the first ring 52 at one end of the constraint rope 51 and is fastened to the threaded blind hole on the upper part of the window cover body 21, fixing one end of the constraint rope 51 to the upper part of the window cover body 21. The screw 42 passes through the side plate through hole 221 on the outside of the window cover side plate 22 and is fastened to the threaded blind holes 311 on both sides of the window body 31, realizing the connection between the arc-relieving window cover unit 2 and the arc-relieving window body unit 3. After the side plate through hole 221 and the window body threaded blind hole 311 are aligned, the first sealing strip 23 will adhere to the window body flange 33 and be in a compressed state, realizing the seal between the arc-relieving window cover unit 2 and the arc-relieving window body unit 3. The second bolt 55 passes through the second ring 53 at the other end of the constraint rope 51, and then through the through hole 321 on the window body extension 32, and is fastened to the threaded blind hole 13 on the upper part of the top plate 1, installing the modular arc-relieving assembly on the top plate 1.

[0053] The arc-extinguishing component provided in this embodiment is modularly designed with strong scalability; it is installed on the top of the cabinet, saving space in width and depth; it uses a cost-effective weak connection method, with a simple and compact structure and relatively low cost.

[0054] Example 2

[0055] This embodiment provides an electrical cabinet, which includes the arc-extinguishing assembly described in Embodiment 1.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An arc leakage assembly, characterized in that, The arc leakage assembly is assembled on the top plate of the electrical cabinet, and the arc leakage assembly comprises an arc leakage window cover unit, an arc leakage window body unit, a first connecting unit and a second connecting unit, the arc leakage window body unit is assembled at the ventilation through hole of the top plate, the arc leakage window cover unit is connected with the arc leakage window body unit through the first connecting unit, the arc leakage window cover unit is further connected with the top plate through the second connecting unit, and the second connecting unit can enable the arc leakage window cover unit and the top plate to have a movement amount in a connected state; wherein the strength of the first connecting unit is less than the strength of the second connecting unit.

2. The arc diversion assembly of claim 1, wherein, The arc leakage window cover unit comprises a window cover body, a window cover side plate and a first sealing rubber strip, the side edges of the window cover body are bent downward to form the window cover side plate, and the first sealing rubber strip is arranged in the space surrounded by the window cover side plate.

3. The arc diversion assembly of claim 2, wherein, The arc leakage window body unit comprises a window body, a window extension and a window flange, the window body is a closed structure, the bottom surface of the window body is bent outward to form the window extension, and the top of the window body is bent inward to form the window flange; when the arc leakage window cover unit cooperates with the arc leakage window body unit, the first sealing rubber strip is tightly attached to the window flange.

4. The arc diversion assembly of claim 3, wherein, The window cover side plate has a side plate through hole, the window body has a window threaded blind hole, and the first connecting unit passes through the side plate through hole and the window threaded blind hole to connect the arc leakage window cover unit and the arc leakage window body unit.

5. The arc diversion assembly of any of claims 1-4, wherein, A second sealing rubber strip is arranged at the ventilation through hole, and the bottom surface of the arc leakage window body unit has a step; when the arc leakage window body unit cooperates with the ventilation through hole, the second sealing rubber strip can be clamped at the step.

6. The arc diversion assembly of claim 4, wherein, The second connecting unit comprises a restraint rope and first and second rings arranged at two ends of the restraint rope respectively; the first ring is fixed on the window cover body, and the second ring is connected to the top plate after passing through the window extension; wherein the material of the restraint rope is stainless steel.

7. The arc diversion assembly of claim 6, wherein, The second connecting unit further comprises a first bolt, the window cover body has a first blind hole, and the first bolt fixes one end of the restraint rope at the first blind hole after passing through the first ring.

8. The arc diversion assembly of claim 7, wherein, The second connecting unit further comprises a second bolt, the window extension has a through hole, the top plate has a threaded blind hole, and the second bolt fixes the other end of the restraint rope at the threaded blind hole after sequentially passing through the second ring and the through hole.

9. The arc diversion assembly of claim 4, wherein, The first connecting unit comprises a gasket and a screw, and the screw sequentially passes through the gasket, the side plate through hole and the window threaded blind hole; wherein the material of the screw is plastic or nylon.

10. An electrical cabinet, characterized in that The electrical cabinet comprises the arc leakage assembly of any one of claims 1-9.

Images