Low voltage draw-out power distribution cabinet

Abstract

The utility model relates to a power distribution cabinet, especially a low-voltage draw-out type power distribution cabinet, comprising: a cabinet body, a plurality of chambers with front-end openings are provided in the cabinet body, a draw-out cabinet is slidably connected in the plurality of chambers, a front baffle that is connected with the chambers is provided at the front end of the draw-out cabinet, a handle is installed on the front baffle, a first conductive strip protruding from the inner contour end surface is provided in the inner contour of the handle, and a second conductive strip that is in conductive communication with the first conductive strip is embedded in the front baffle; the utility model is characterized in that a first movable rod is fixedly connected with the draw-out cabinet, a tenon is installed at one end of the first movable rod, a clamping seat that is lockingly connected with the tenon is provided in the cabinet body, and an unlocking ring that can be unlocked through sliding is further provided on the clamping seat, so that the draw-out cabinet can be controlled to be locked or unlocked in the draw-out state, and electrical connection interruption caused by misoperation is avoided.

Description

Technical Field

[0001] This utility model relates to power distribution cabinets, and more particularly to a low-voltage withdrawable power distribution cabinet. Background Technology

[0002] Low-voltage distribution cabinets are widely used in daily production and living power systems to centrally install various electrical equipment in order to realize functions such as power distribution and centralized control of electrical equipment.

[0003] Traditional withdrawable low-voltage switchgear lacks a stable locking structure, making it susceptible to vibration or accidental contact that could cause the cabinet to be pulled out. Accidental removal can not only disrupt the normal operation of the power system but also lead to electrical connection interruptions and equipment failure. During maintenance, personnel usually need to wear anti-static wrist straps to eliminate static electricity carried on their bodies. However, these wrist straps are not convenient to wear and do not make good contact with the skin, resulting in poor static elimination. Furthermore, they are easily forgotten in emergency maintenance situations.

[0004] Therefore, there is a need for a low-voltage withdrawable distribution cabinet that can effectively prevent accidental removal and automatically eliminate static electricity from the human body during the removal process. Utility Model Content

[0005] The purpose of this utility model is to provide a low-voltage withdrawable distribution cabinet to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A low-voltage withdrawable switchgear includes: The cabinet has multiple chambers with equal volume and open front ends. Each chamber is slidably connected to a pull-out cabinet. The front end of each pull-out cabinet is provided with a front baffle that fits into the chamber. A handle is installed on the front baffle. The inner contour of the handle is provided with a first conductive strip that protrudes from the end face of the inner contour. A second conductive strip that is in communication with the first conductive strip is embedded in the front baffle. The sliding assembly includes a first movable rod with one end fixedly connected to the front baffle, the first movable rod being slidably connected to the side wall of the chamber, the other end of the first movable rod being provided with a tenon, the rear end of the chamber being fixedly provided with a card seat, the tenon being locked to the card seat, and a third conductive strip being slidably connected inside the first movable rod and conductively connected to the second conductive strip, the other end of the third conductive strip being in contact with the card seat. The grounding component includes a grounding bar. One end of the card holder away from the contact with the third conductive bar passes through the rear side wall of the cabinet and is connected to the grounding bar. The other end of the grounding component is connected to the earth.

[0007] Preferably, the sliding assembly has two sets symmetrically arranged on both sides of the drawer cabinet, including a sleeve, the sleeve being fixedly connected to the inner sidewall of the chamber, the first movable rod being slidably disposed inside the sleeve, the first movable rod having a sliding cavity arranged along the central axis, the third conductive strip being slidably installed in the sliding cavity, and the latch being installed in the sliding cavity at one end away from the third conductive strip and elastically connected to the sliding cavity.

[0008] Preferably, one end of the third conductive strip is connected to a first elastic element, the other end of the first elastic element is elastically connected to the second conductive strip, and the other end of the third conductive strip elastically abuts against the latch.

[0009] Preferably, the tenon includes a tenon that is radially arranged along the first movable rod and movably installed in the side wall of the first movable rod. The tenon is telescopically connected to the sliding cavity. A slide rod is provided at the rear end of the tenon. A limit block is installed at the other end of the slide rod through the outer side wall of the first movable rod. A second elastic element is fitted on the slide rod. The second elastic element is disposed inside the side wall of the first movable rod and elastically abuts against the side wall.

[0010] Preferably, the card holder includes a guide rod with one end fixedly connected to the inner wall of the rear end of the chamber, and a locking ring at the other end of the guide rod, which is locked to the tenon.

[0011] Preferably, the locking ring includes an arc-shaped protrusion at its front end and a snap-fit ​​end face. The third conductive strip elastically abuts against the arc-shaped protrusion. The arc-shaped protrusion is slidably connected to the tenon. One end of the snap-fit ​​end face is connected to the outer contour of the arc-shaped protrusion, and the other end is perpendicularly connected to the guide rod body. The snap-fit ​​end face is elastically engaged with one end of the top surface of the tenon.

[0012] Preferably, the guide rod is provided with a limiting boss at one end connected to the inner wall of the cavity, and an unlocking ring is provided between the limiting boss and the snap-fit ​​end face of the guide rod and is slidably connected to the guide rod. The unlocking ring is provided with inclined driving surfaces that are slidably connected to the tenon at both ends of the axial direction, and the snap-fit ​​end face is provided with an inner groove that fits and connects with the inclined driving surface.

[0013] Preferably, the end of the guide rod away from the locking ring is provided with a fourth conductive strip that passes through the rear end wall of the cabinet and is conductively connected to the grounding component. The grounding component includes a grounding strip that is longitudinally arranged outside the rear end wall of the cabinet. There are two sets of grounding strips, and the two sets of grounding strips are symmetrically arranged on the left and right sides of the rear end wall of the cabinet. A connecting rod is provided between the two sets of grounding strips.

[0014] Preferably, the grounding component further includes a grounding wire, one end of which is connected to any set of grounding bars for conduction, and the other end is connected to the earth.

[0015] Preferably, an insulating plate is provided between the rear end wall of the cabinet and the grounding strip, and the other end of the insulating plate is embedded in the rear end wall of the cabinet. The fourth conductive strip passes through the insulating plate and is connected to the grounding strip for conduction.

[0016] Compared with the prior art, this utility model provides a low-voltage withdrawable distribution cabinet, which has the following advantages: This utility model features a first movable rod that is fixedly connected to the drawer cabinet. One end of the first movable rod is fitted with a tenon, and the cabinet interior is equipped with a locking seat that engages with the tenon. The locking seat is also equipped with an unlocking ring that can be unlocked by sliding, thereby enabling the drawer cabinet to achieve a controllable locked or unlocked draw-out state and preventing electrical connection interruption due to accidental operation.

[0017] This invention features multiple conductive strips that, when locked, form an electrostatic conduction circuit and are connected to a grounding component. When unlocking, the user's skin contacts the conductive strips as they grip the handle, allowing static electricity to be conducted through the circuit and grounded to the earth. This prevents accidental unlocking, effectively eliminates static electricity from the user, avoids damage to electrical equipment, and ensures the equipment operates normally. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention (first perspective). Figure 2 This is a three-dimensional structural schematic diagram of the present invention (second perspective). Figure 3 This is a side view of the internal structure of this utility model; Figure 4 This is a partially enlarged schematic diagram of the sleeve and the card holder in the unlocked state in this utility model; Figure 5 This is a cross-sectional structural diagram of the locked state of the drawer cabinet in this utility model; Figure 6 This is a cross-sectional structural diagram of the locked state of the drawer cabinet in this utility model; Figure 7 This is a schematic diagram of the internal structure of this utility model; Figure 8 For the present utility model Figure 5 A magnified view of the structure at point A in the middle.

[0019] In the diagram: 1. Cabinet body; 11. Chamber; 2. Draw-out cabinet; 21. Front baffle; 22. Second conductive strip; 3. Handle; 31. First conductive strip; 4. Sleeve; 41. First movable rod; 5. Third conductive strip; 51. First elastic element; 6. Clamp; 61. Tenon; 62. Slide rod; 63. Limiting block; 64. Second elastic element; 7. Card seat; 71. Guide rod; 72. Limiting boss; 73. Unlocking ring; 74. Locking ring; 741. Arc-shaped protrusion; 742. Snap-fit ​​end face; 75. Fourth conductive strip; 8. Grounding strip; 81. Connecting rod; 82. Grounding wire; 9. Insulating plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0022] Reference Figures 1-8 A low-voltage withdrawable distribution cabinet, comprising: Cabinet 1 has multiple chambers 11 with equal volume and front openings inside. A pull-out cabinet 2 is slidably connected to each chamber 11. The front end of the pull-out cabinet 2 is provided with a front baffle 21 that fits into the chamber 11. A handle 3 is installed on the front baffle 21. A first conductive strip 31 protruding from the end face of the inner contour of the handle 3 is provided in the inner contour of the handle 3. The handle 3 is used to pull the pull-out cabinet 2 outward by holding the handle 3 to inspect and maintain the electrical equipment inside the pull-out cabinet 2. A second conductive strip 22 that is in communication with the first conductive strip 31 is embedded in the front baffle 21. The sliding assembly includes a first movable rod 41 with one end fixedly connected to the front baffle 21. The first movable rod 41 is slidably connected to the side wall of the chamber 11. The other end of the first movable rod 41 is provided with a tenon 6. A card seat 7 is fixedly provided at the rear end inside the chamber 11. The tenon 6 and the card seat 7 are locked together, so that the cabinet 1 and the pull-out cabinet 2 are locked together by the tenon 6 and the card seat 7 in the working state. During maintenance, by releasing the connection structure between any pull-out cabinet 2 and the card seat 7 inside the corresponding chamber 11, the corresponding pull-out cabinet 2 can slide out of the chamber 11 relative to the cabinet 1 under the action of the sliding assembly, which is convenient for the maintenance of the electrical equipment inside the pull-out cabinet 2. A third conductive strip 5 is slidably connected inside the first movable rod 41 and is conductively connected to the second conductive strip 22. The other end of the third conductive strip 5 is in contact with the card seat 7. The grounding component includes a grounding strip 8. One end of the card holder 7, away from the contact with the third conductive strip 5, passes through the rear side wall of the cabinet 1 and is connected to the grounding strip 8. The other end of the grounding component is connected to the ground. When the handle 3 is held, the human skin contacts the first conductive strip 31 in the inner contour of the handle 3, so that the static electricity carried by the human body is conducted through the first conductive strip 31, the second conductive strip 22, and the third conductive strip 5 and then connected to the grounding component, thereby eliminating the static electricity carried by the human body and preventing static electricity from contacting the electrical equipment inside the cabinet 2 during maintenance, which could lead to damage to the electrical equipment.

[0023] Furthermore, the sliding assembly has two sets symmetrically arranged on both sides of the drawer cabinet 2, including a sleeve 4, which is fixedly connected to the inner side wall of the chamber 11. The first movable rod 41 is slidably arranged inside the sleeve 4. The first movable rod 41 has a sliding cavity arranged along the central axis. The third conductive strip 5 is slidably installed in the sliding cavity. The latch 6 is installed in the sliding cavity at one end away from the third conductive strip 5 and is elastically connected to the sliding cavity. It is used to connect with the card seat 7 through the latch 6, thereby fixing the relative position of the first movable rod 41, thus forming a locking structure connected to the card seat 7.

[0024] Furthermore, one end of the third conductive strip 5 is connected to a first elastic element 51, and the other end of the first elastic element 51 is elastically connected to the second conductive strip 22. The first elastic element 51 is made of metal and is located between the second conductive strip 22 and the third conductive strip 5. The other end of the third conductive strip 5 elastically abuts against the latch 6. In the locked state, the latch 7 engages with the latch 6, and the latch 7 pushes the third conductive strip 5 to move and compress the first elastic element 51, thus achieving displacement. When unlocking, the first elastic element 51 pushes the third conductive strip 5 to reset, so that the other end of the third conductive strip 5 returns to the state of abutting against the latch 6. The latch 6 limits the third conductive strip 5 in the unlocked state. Through the action of the first elastic element 51, the circuit between the first conductive strip 31, the second conductive strip 22, the third conductive strip 5 and the latch 7 is connected in the locked state, so that at the moment of unlocking, the static electricity of the human body can be conducted to the grounding component through the above circuit, thereby eliminating static electricity.

[0025] Furthermore, the latch 6 includes a tenon 61 radially arranged along the first movable rod 41 and movably installed in the side wall of the first movable rod 41. The tenon 61 is telescopically connected to the sliding cavity. A slide rod 62 is provided at the rear end of the tenon 61 to guide the tenon 61 so that it is compressed or extended along the movement trajectory of the slide rod 62. A limit block 63 is installed at the other end of the slide rod 62 through the outer side wall of the first movable rod 41 to limit and control the length of the slide rod 62, thereby preventing the tenon 61 from having an excessively long telescopic stroke. A second elastic element 64 is fitted on the slide rod 62. The second elastic element 64 is located inside the side wall of the first movable rod 41 and elastically abuts against the side wall. The elastic force of the second elastic element 64 pushes the tenon 61 to telescopically move, thereby realizing the locking or unlocking connection with the latch 7.

[0026] Furthermore, the card holder 7 includes a guide rod 71 with one end fixedly connected to the inner wall of the rear end of the chamber 11, and a locking ring 74 at the other end of the guide rod 71. The locking ring 74 is locked to the tenon 61. In use, the end faces of the tenon 61 and the locking ring 74 are elastically engaged to achieve a locking connection.

[0027] Furthermore, the locking ring 74 includes an arc-shaped protrusion 741 and a snap-fit ​​end face 742 at its front end. The third conductive strip 5 elastically abuts against the arc-shaped protrusion 741, and the arc-shaped protrusion 741 is slidably connected to the tenon 61. One end of the snap-fit ​​end face 742 is connected to the outer contour of the arc-shaped protrusion 741, and the other end is perpendicularly connected to the guide rod 71. The snap-fit ​​end face 742 is elastically engaged with one end of the top surface of the tenon 61. In use, by pushing the pull-out cabinet 2 towards the cabinet body 1, the first movable rod 41 slides along the sleeve 4 relative to the card seat 7. The hollow sliding cavity in the first movable rod 41 gradually approaches the card seat 7, and the locking ring 74 at the front end of the card seat 7 enters the sliding cavity and abuts against the snap 6. This causes the arc-shaped protrusion 741 at the front end of the locking ring 74 to make tangential contact with the tenon 61. Under the pushing action of the external force, the drawer cabinet 2 pushes the first movable rod 41 to continue to approach the card seat 7, so that the tenon 61 is squeezed by the arc-shaped protrusion 741, thereby being compressed radially along the first movable rod 41. This allows the tenon 6 to continue to move towards the rear end of the card seat 7 through the arc-shaped protrusion 741 of the locking ring 74. After the tenon 61 disengages from the arc-shaped protrusion 741, it extends out from the side wall of the first movable rod 41 and enters the sliding cavity under the action of the second elastic element 64. Its end face abuts against the locking end face 742, thereby achieving a locking connection between the drawer cabinet 2 and the card seat 7, preventing the drawer cabinet 2 from being accidentally pulled out in the working state.

[0028] Furthermore, a limiting boss 72 is provided on the end of the guide rod 71 that connects to the inner wall of the chamber 11. An unlocking ring 73, slidably connected to the guide rod 71, is also provided between the limiting boss 72 and the engaging end face 742. Both ends of the unlocking ring 73 have inclined driving surfaces slidably connected to the tenon 61. The engaging end face 742 has an inner groove that fits into the inclined driving surface. In use, when unlocking the drawer 2, an external force is applied to push the drawer 2 towards the interior of the chamber 11 of the cabinet body 1. This causes the first movable rod 41 to drive the latch 6 structure to continue moving along the latch seat 7, causing the latch 6 to contact the unlocking ring 73. This pushes the unlocking ring 73 against the limiting boss 72, thus fixing the position of the unlocking ring 73. The latch 6 is pushed to continue moving relative to the unlocking ring 73, causing the inclined driving surface of the unlocking ring 73 near the latch 6 to first contact the tenon 61. The inclined driving surface gradually compresses the tenon 61, allowing the latch 6 to continue moving through the unlocking ring 73. After the tenon 6 passes through the unlocking ring 73, all pressure on the tenon 61 disappears, causing it to pop out and reset. This allows it to abut against the inclined drive surface at the other end of the unlocking ring 73, driving the unlocking ring 73 to move. When pulled out, the tenon 6 passes through the unlocking ring 73, causing the unlocking ring 73 to move towards the locking ring 74. This allows the unlocking ring 73 to connect with the inner groove of the locking ring 74's engaging end face 742 via its inclined drive surface away from the tenon 61, thus restricting further movement of the unlocking ring 73 and allowing the tenon 61 to... 1. Under the action of the extraction force, the inclined drive surface continues to move relative to the rear end of the unlocking ring 73, so that the tenon 61 is gradually compressed by the inclined drive surface. When the tenon 61 passes through the outermost contour of the inclined drive surface, it is compressed into the side wall of the first movable rod 41, thereby causing the tenon 6 to disengage from the locking end face 742 of the locking ring 74, and the first movable rod 41 to unlock from the card seat 7, so that the drawer cabinet 2 can slide freely relative to the chamber 11, which is convenient for the maintenance of electrical components in the drawer cabinet 2.

[0029] Furthermore, the end of the guide rod 71 away from the locking ring 74 is provided with a fourth conductive strip 75 that passes through the rear end wall of the cabinet 1 and is conductively connected to the grounding component. The grounding component includes a grounding strip 8 longitudinally arranged outside the rear end wall of the cabinet 1. There are two sets of grounding strips 8, and the two sets of grounding strips 8 are symmetrically arranged on the left and right sides of the rear end wall of the cabinet 1. The two sets of longitudinally arranged grounding strips 8 are used to connect the card seats 7 in the multiple longitudinally distributed chambers 11 in series. A connecting rod 81 is provided between the two sets of grounding strips 8 on both sides to conduct the connection between the two sets of grounding strips 8.

[0030] Furthermore, the grounding component also includes a grounding wire 82, one end of which is connected to any set of grounding bars 8 for conduction, and the other end is connected to the earth, so that the current can be smoothly conducted into the earth and play the role of safe grounding.

[0031] Furthermore, an insulating plate 9 is provided between the rear end wall of the cabinet 1 and the grounding strip 8. The other end of the insulating plate 9 is embedded in the rear end wall of the cabinet 1. The fourth conductive strip 75 passes through the insulating plate 9 and is connected to the grounding strip 8 for conduction. The insulating plate 9 is used to prevent short circuits between the rear end wall of the cabinet 1 and the grounding strip 8, and at the same time ensures electrical isolation between the grounding strip 8 and the cabinet 1. Only through the fourth conductive strip 75 can the grounding connection between the grounding strip 8 and the internal card slot 7 of the cabinet 1 be achieved, so as to avoid static electricity conduction into the interior of the pull-out cabinet 2 and interfere with the normal operation of the electrical equipment.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-voltage withdrawable distribution cabinet, characterized in that, include: Cabinet (1), the cabinet (1) has multiple chambers (11) with equal volume and front openings, and drawer cabinets (2) are slidably connected in the multiple chambers (11). The front end of the drawer cabinet (2) is provided with a front baffle (21) that fits and connects with the chambers (11). A handle (3) is installed on the front baffle (21). A first conductive strip (31) protrudes from the end face of the inner contour of the handle (3). A second conductive strip (22) that is connected to the first conductive strip (31) is embedded in the front baffle (21). The sliding assembly includes a first movable rod (41) fixedly connected at one end to the front baffle (21), the first movable rod (41) being slidably connected to the side wall of the chamber (11), the other end of the first movable rod (41) being provided with a tenon (6), a retaining seat (7) being fixedly provided at the rear end inside the chamber (11), the tenon (6) being locked to the retaining seat (7), and a third conductive strip (5) being slidably connected inside the first movable rod (41) and conductively connected to the second conductive strip (22), the other end of the third conductive strip (5) being in contact with the retaining seat (7) and conducting. The grounding assembly includes a grounding bar (8). The end of the card holder (7) that is away from the contact with the third conductive bar (5) passes through the rear side wall of the cabinet (1) and is connected to the grounding bar (8). The other end of the grounding assembly is connected to the earth.

2. A low-voltage withdrawable distribution cabinet according to claim 1, characterized in that, The sliding assembly has two sets symmetrically arranged on both sides of the drawer cabinet (2), including a sleeve (4). The sleeve (4) is fixedly connected to the inner side wall of the chamber (11). The first movable rod (41) is slidably arranged inside the sleeve (4). The first movable rod (41) has a sliding cavity arranged along the central axis. The third conductive strip (5) is slidably installed in the sliding cavity. The latch (6) is installed in the sliding cavity at one end away from the third conductive strip (5) and the latch (6) is elastically connected to the sliding cavity.

3. A low-voltage withdrawable distribution cabinet according to claim 2, characterized in that, One end of the third conductive strip (5) is connected to the first elastic element (51), the other end of the first elastic element (51) is elastically connected to the second conductive strip (22), and the other end of the third conductive strip (5) is elastically abutted against the tenon (6).

4. A low-voltage withdrawable distribution cabinet according to claim 3, characterized in that, The tenon (6) includes a tenon (61) arranged radially along the first movable rod (41) and movably installed in the side wall of the first movable rod (41). The tenon (61) is telescopically connected to the sliding cavity. A slide rod (62) is provided at the rear end of the tenon (61). A limit block (63) is installed at the other end of the slide rod (62) through the outer side wall of the first movable rod (41). A second elastic element (64) is fitted on the slide rod (62). The second elastic element (64) is arranged inside the side wall of the first movable rod (41) and elastically abuts against the side wall.

5. A low-voltage withdrawable distribution cabinet according to claim 4, characterized in that, The card holder (7) includes a guide rod (71) with one end fixedly connected to the inner wall of the rear end of the chamber (11), and a locking ring (74) is provided at the other end of the guide rod (71), which is locked to the tenon (61).

6. A low-voltage withdrawable distribution cabinet according to claim 5, characterized in that, The locking ring (74) includes an arc-shaped protrusion (741) and a snap-fit ​​end face (742) at its front end. The third conductive strip (5) elastically abuts against the arc-shaped protrusion (741). The arc-shaped protrusion (741) is slidably connected to the tenon (61). One end of the snap-fit ​​end face (742) is connected to the outer contour of the arc-shaped protrusion (741), and the other end is perpendicularly connected to the body of the guide rod (71). The snap-fit ​​end face (742) is elastically snapped into one end of the top surface of the tenon (61).

7. A low-voltage withdrawable distribution cabinet according to claim 6, characterized in that, The guide rod (71) is connected to the inner wall of the chamber (11) at one end, and a limiting boss (72) is provided on the guide rod (71). The guide rod (71) is located between the limiting boss (72) and the snap-fit ​​end face (742) and is also provided with an unlocking ring (73) that is slidably connected to the guide rod (71). Both ends of the unlocking ring (73) are provided with inclined driving surfaces that are slidably connected to the tenon (61). The snap-fit ​​end face (742) is provided with an inner groove that fits and connects with the inclined driving surface.

8. A low-voltage withdrawable distribution cabinet according to claim 7, characterized in that, The guide rod (71) is provided with a fourth conductive strip (75) at the end away from the locking ring (74) that passes through the rear end wall of the cabinet (1) and is connected to the grounding component. The grounding component includes a grounding strip (8) arranged longitudinally outside the rear end wall of the cabinet (1). There are two sets of grounding strips (8), and the two sets of grounding strips (8) are symmetrically arranged on the left and right sides of the rear end wall of the cabinet (1). A connecting rod (81) is provided between the two sets of grounding strips (8).

9. A low-voltage withdrawable distribution cabinet according to claim 8, characterized in that, The grounding assembly also includes a grounding wire (82), one end of which is connected to any set of grounding bars (8) and the other end is connected to the earth.

10. A low-voltage withdrawable distribution cabinet according to claim 9, characterized in that, An insulating plate (9) is provided between the rear end wall of the cabinet (1) and the grounding strip (8). The other end of the insulating plate (9) is embedded in the rear end wall of the cabinet (1). The fourth conductive strip (75) passes through the insulating plate (9) and is connected to the grounding strip (8) for conduction.

Images