CN114665396A - Outdoor switch board indicating instrument protection against electric shock structure - Google Patents
Outdoor switch board indicating instrument protection against electric shock structure Download PDFInfo
- Publication number
- CN114665396A CN114665396A CN202210415212.0A CN202210415212A CN114665396A CN 114665396 A CN114665396 A CN 114665396A CN 202210415212 A CN202210415212 A CN 202210415212A CN 114665396 A CN114665396 A CN 114665396A
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- China
- Prior art keywords
- instrument
- cabinet
- plate
- spring
- electric shock
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/56—Testing of electric apparatus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
Abstract
The invention discloses an electric shock prevention structure for an indicating instrument of an outdoor power distribution cabinet, which comprises an outer cabinet, wherein an instrument box is arranged in the outer cabinet, a plurality of instrument interfaces are arranged in the instrument box and are arranged at equal intervals along the vertical direction, a sealing plate is arranged on the outer side of each instrument interface, a plate sleeve is arranged on the side surface of each sealing plate, the plate sleeves are in sealing sliding connection with the sealing plates, an electric leakage circuit breaking structure is arranged in each plate sleeve, a solar cell panel is embedded in the top of the outer cabinet and electrically connected with a battery through a charging circuit, a cabinet door is arranged on one side, close to the instrument box, of the outer cabinet, the battery is arranged in the cabinet door, and a conventional detection structure and a temporary detection structure are arranged in the cabinet door. Has the advantages that: the effect of outage in advance is played, and the effect of warning in advance before the electric leakage risk appears, the safety problem of better guarantee staff's maintenance.
Description
Technical Field
The invention relates to the technical field of electric shock prevention of power distribution cabinets, in particular to an electric shock prevention structure of an indicating instrument of an outdoor power distribution cabinet.
Background
If the switch board is not inseparable when carrying out the distribution, rub with connecting switch easily, lead to the switch board to catch fire, the outside indicating instrument electric leakage of switch board sometimes leads to the staff to electrocute when contacting the instrument, causes huge injury to the staff.
Through search, the Chinese authorized invention with the publication number of CN112216572A discloses an electric shock prevention structure of an indicating instrument of a high-low voltage power distribution cabinet, which comprises a housing, the inner part of the cover casing is fixedly connected with a live wire conductor and a zero line conductor, the lower surface of the inner part of the cover casing is fixedly connected with a live wire coil, the lower surface of the inner part of the housing is fixedly connected with a zero line coil, the inner part of the zero line coil is fixedly connected with an electromagnet, the inner part of the housing is fixedly connected with a mounting rack, the inner part of the mounting rack is movably connected with a movable shaft and a pressure spring, after analysis, although the prior art can realize the function of electric shock and power off, the power off effect can be realized only by electric shock, the operator cannot be reminded of avoiding mistaken electric shock during electric leakage, therefore, the electric shock prevention structure of the indicating instrument of the outdoor power distribution cabinet is designed on the basis of the situation that the life safety of operators is threatened.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides an electric shock prevention structure for an indicating instrument of an outdoor power distribution cabinet.
The utility model provides an outdoor switch board indicating instrument protection against electric shock structure, includes outer cabinet, be provided with the instrument box in the outer cabinet, be provided with a plurality of instrument interfaces in the instrument box and a plurality of instrument interfaces set up along vertical direction equidistance, every the outside of instrument interface all is provided with a closing plate, every the side of closing plate all is provided with a board cover, board cover and the sealed sliding connection of closing plate, be provided with the electric leakage structure that opens circuit in the board cover, the top of outer cabinet is inlayed and is equipped with solar cell panel, solar cell panel is connected with the battery through the charging circuit electricity, one side that outer cabinet is close to the instrument box is provided with the cabinet door, the battery sets up in the cabinet door, be provided with conventional detection structure and interim detection structure in the cabinet door.
Further, the electric leakage structure that opens circuit includes a plurality of wedges, every the wedge all has a board cover to be connected rather than the cooperation, the inclined plane part of wedge just is located one side of board cover to the closing plate, the other end of wedge is sealed to run through the board cover and the intercommunication is provided with the outage case, vertical fixed being provided with piezoelectric plate in the outage case, every the wedge is located equal fixedly connected with a first spring in one side of outage incasement, and is a plurality of the other end of first spring all offsets with the board cover.
Furthermore, the piezoelectric plate is far away from one end of the first spring and is fixedly connected with a second spring, the second spring is made of a conductor material, the other end of the second spring is fixedly connected with a first connecting block, the first connecting block is abutted against a second connecting block, one side, opposite to the first connecting block and the second connecting block, of the first connecting block is provided with a connecting layer, the two connecting layers are respectively communicated with a power circuit in the power distribution cabinet through wires, and the first connecting block and the second connecting block of the second spring are in a compression state when abutted against each other.
Further, the conventionality detects the structure including seting up the detection chamber in the cabinet door, it is equipped with the electrorheological fluids to detect the intracavity, the surface of electrorheological fluids is provided with filtration membrane, filtration membrane outer lane part fixedly connected with slider, the movable groove has been seted up with the junction of slider in detection chamber, a plurality of lifter of bottom fixedly connected with in movable groove, every the top of lifter all with the lower terminal surface fixed connection of slider, the top in movable groove is provided with the conducting layer, the conducting layer electricity is connected with the warning light, slider and conducting layer are connected with the battery electricity respectively.
Further, the interim structure that detects is including setting up angle sensor and the circuit breaker in the cabinet door, the angle sensor electricity is connected with the electro-magnet, the electro-magnet is inhaled with slider magnetism looks, the electro-magnet sets up at the top of activity groove and is connected with the circuit breaker, the battery passes through the wire and is connected with the second spring electricity, the closing plate adopts transparent insulating material, first connecting block fixedly connected with connecting rod, the connecting rod sets up in inner circle one side of second spring, the other end and the piezoelectric plate fixed connection of connecting rod.
Compared with the prior art, the invention has the advantages that:
1: when through the electric leakage, the instrument interface surface electrification can produce the characteristics of electric field, realizes automatic detection to the electric leakage state to avoid the problem of electric shock in advance, reduce the safety risk.
2: during the use, inspect the instrument interface and can promote a plurality of closing plates to the board cover in to make a plurality of wedge extrusion piezoelectric plate, such benefit lies in, reduces the inseparable degree of connection of two connecting blocks, when probably taking place the electric leakage, improves outage speed.
3: through the angle sensor who sets up, when the staff opened the cabinet door, carry out once and detect the function temporarily to perhaps carry out the outage operation in advance when causing under the electric leakage state, thereby the assurance of very big degree avoids the risk of accidental electric shock.
Drawings
Fig. 1 is an internal view of an electric shock prevention structure of an indicating instrument of an outdoor power distribution cabinet, which is provided by the invention;
fig. 2 is a schematic structural view of a sealing plate and a wedge block in an electric shock prevention structure of an indicating instrument of an outdoor power distribution cabinet, which is provided by the invention;
fig. 3 is a cross sectional view of an electric box of an electric shock preventing structure of an outdoor power distribution cabinet indicating instrument, provided by the invention;
fig. 4 is a schematic structural view of a detection cavity in an electric shock prevention structure of an outdoor power distribution cabinet indicating instrument provided by the invention;
fig. 5 is a sectional view of a cabinet door in an electric shock prevention structure of an outdoor power distribution cabinet indicating instrument provided by the invention;
fig. 6 is a cross sectional view of a first connecting block and a second connecting block in an electric shock preventing structure of an indicating instrument of an outdoor power distribution cabinet.
In the figure: the device comprises an outer cabinet 1, an instrument box 2, an instrument interface 3, a sealing plate 4, a plate sleeve 5, a solar cell panel 6, a battery 7, a cabinet door 8, a wedge-shaped block 9, a power-off box 10, a piezoelectric plate 11, a first spring 12, a second spring 13, a first connecting block 141, a second connecting block 142, a connecting layer 143, a detection cavity 15, a filtering membrane 16, a sliding block 17, a movable groove 18, a lifting rod 19, a conductive layer 20, an electromagnet 21 and a connecting rod 22.
Detailed Description
Referring to fig. 1-5, an electric shock prevention structure for an indicating instrument of an outdoor power distribution cabinet comprises an outer cabinet 1, it is characterized in that an instrument box 2 is arranged in an outer cabinet 1, a plurality of instrument interfaces 3 are arranged in the instrument box 2, the instrument interfaces 3 are arranged at equal intervals along the vertical direction, a sealing plate 4 is arranged at the outer side of each instrument interface 3, a plate sleeve 5 is arranged on the side surface of each sealing plate 4, the plate sleeves 5 are in sealing sliding connection with the sealing plates 4, an electric leakage circuit breaking structure is arranged in each plate sleeve 5, a solar cell panel 6 is embedded at the top of the outer cabinet 1, the solar cell panel 6 is electrically connected with a battery 7 through a charging circuit, charging for battery 7 through solar energy, making battery 7 have the ability that can export the stabilization current all the time like this, one side that outer cabinet 1 is close to instrument box 2 is provided with cabinet door 8, and battery 7 sets up in cabinet door 8, is provided with conventional detection structure and interim detection structure in cabinet door 8.
Referring to fig. 3-6, the electrical leakage breaking structure comprises a plurality of wedge-shaped blocks 9, each wedge-shaped block 9 has a plate sleeve 5 in matching connection with the wedge-shaped block 9, the inclined surface portion of the wedge-shaped block 9 is opposite to one side of the sealing plate 4 in the plate sleeve 5, the other end of the wedge-shaped block 9 hermetically penetrates through the plate sleeve 5 and is communicated with a breaking box 10, a piezoelectric plate 11 is vertically and fixedly arranged in the breaking box 10, one side of each wedge-shaped block 9 in the breaking box 10 is fixedly connected with a first spring 12, the other ends of the first springs 12 are all abutted against the plate sleeve 5, when servicing the instrument interface 3 in the instrument box 2, it is necessary to push the insulating sealing plate 4 into the plate sleeve 5, which, on the one hand, when no problems arise, through the insulation and the transparency of the sealing plate 4, observation is convenient, and pollution and erosion to the instrument interface 3 caused by external dust are avoided.
The end of the piezoelectric plate 11 far away from the first spring 12 is fixedly connected with a second spring 13, the second spring 13 is made of a conductor material, the other end of the second spring 13 is fixedly connected with a first connecting block 141, the first connecting block 141 is abutted against a second connecting block 142, one side of the first connecting block 141 opposite to the second connecting block 142 is provided with a connecting layer 143, the two connecting layers 143 are respectively communicated with a power circuit in the power distribution cabinet through wires, when the first connecting block 141 and the second connecting block 142 are disconnected, the power supply is in an open circuit state, the first connecting block 141 and the second connecting block 142 of the second spring 13 are in a compressed state when abutted against each other, so that when the circuit normally works, the circuit always keeps a normally communicated state under the pressure action of the second spring 13, the conventional detection structure comprises a detection cavity 15 arranged in the power distribution cabinet 8, a cabinet door is arranged in the detection cavity 15, and the electrorheological fluid has the effect of converting the liquid state into an approximate solid state under the action of an electric field, and it is big that electric field power is big, the big characteristics of volume of electrorheological fluid, the surface of electrorheological fluid is provided with filtration membrane 16, filtration membrane 16 outer lane part fixedly connected with slider 17, movable groove 18 has been seted up with slider 17's junction to detection chamber 15, a plurality of lifter 19 of bottom fixedly connected with of movable groove 18, the top of every lifter 19 all with slider 17's lower terminal surface fixed connection, the top of movable groove 18 is provided with conducting layer 20, conducting layer 20 electricity is connected with the warning light, slider 17 and conducting layer 20 are connected with battery 7 electricity respectively, when external electric field power is great, the volume change of electrorheological fluid can promote to move on slider 17 and move to the state that conducting layer 20 is connected, then under this state, the warning light will be in the state of lighting, thereby remind the staff to have the electric shock risk.
The temporary detection structure comprises an angle sensor and a breaker which are arranged in a cabinet door 8, the angle sensor is electrically connected with an electromagnet 21, the electromagnet 21 and a sliding block 17 are attracted magnetically, the electromagnet 21 is arranged at the top of a movable groove 18 and is connected with the breaker, when the cabinet door 8 is completely closed, the breaker disconnects a circuit in the electromagnet 21, when the cabinet door 8 starts to rotate, the electromagnet 21 is in a communicable state, the electromagnet 21 is simultaneously conducted when the sliding block 17 is contacted with a conductive layer 20, so that the electromagnet 21 and the sliding block 17 are in a fit state, in this state, a battery 7 supplies power to a second spring 13, the elastic potential energy of the second spring 13 is continuously reduced, the battery 7 is electrically connected with the second spring 13 through a lead, a sealing plate 4 is made of a transparent insulating material, a connecting rod 22 is fixedly connected with a first connecting block 141, the connecting rod 22 is arranged on one side of an inner ring of the second spring 13, the other end of the connecting rod 22 is fixedly connected with the piezoelectric plate 11.
In practical use, the sealing plate 4 has the effect that the instrument interface 3 is isolated from the outside through the insulating characteristic, so that when the electric shock risk exists, the instrument interface 3 can be exposed only when the sealing plate 4 is in a state of pushing the plate sleeve 5, and in the state, the sealing plate 4 acts on the wedge-shaped block 9 in the plate sleeve 5, so that the wedge-shaped block 9 pushes the piezoelectric plate 11, thus reducing partial elastic potential energy of the second spring 13 under the condition that the piezoelectric plate 11 outputs current to the second spring 13, and in the state, the connection of the first connecting block 141 and the second connecting block 142 is not in a tightly-jointed state, so that the electric shock state is caused, and the electric shock state can be easily broken;
meanwhile, when the instrument interface 3 is in an electric leakage state, the electric charge attached to the surface of the instrument interface can increase an obvious electric field in the outer cabinet 1, the electric field acts on the electrorheological fluid in the cabinet door 8, so that the volume of the electrorheological fluid is increased and expanded, and the electrorheological fluid is converted from a liquid state to a solid state, so that the electrorheological fluid cannot penetrate through the filtering membrane 16 to enable the filtering membrane 16 to drive the sliding block 17 to rise, at the moment, the sliding block 17 is connected with the conducting layer 20, so that the warning lamp is lightened, the design has the further advantage that when the warning lamp is lightened, the electric field intensity in the outer cabinet 1 is higher, and the electric shock risk is realized, so that the attention of workers is warned in advance, and the approach of outside irrelevant personnel is prevented.
And when the maintainer opened cabinet door 8, the interim structure switched on the interior circuit of electro-magnet 21 when cabinet door 8 rotated again, when inside electric field was higher this moment, will export a stable electric current for second spring 13, this moment in addition closing plate 4 was to the exerting pressure of wedge 9, will make piezoelectric plate 11 and battery 7 input current to second spring 13 simultaneously, this moment will make first connecting block 141 and second connecting block 142 break away from, under this state, the power will be in the off-state automatically, so both can not lead to the fact the electric shock risk to the staff, the outage number of times has also been reduced, avoid influencing normal work.
Claims (5)
1. The utility model provides an outdoor switch board indicating instrument protection against electric shock structure, includes outer cabinet (1), its characterized in that, be provided with instrument box (2) in outer cabinet (1), be provided with a plurality of instrument interface (3) and a plurality of instrument interface (3) along vertical direction equidistance setting in instrument box (2), every the outside of instrument interface (3) all is provided with a closing plate (4), every the side of closing plate (4) all is provided with a sheet cover (5), sheet cover (5) and closing plate (4) sealing sliding connection, be provided with electric leakage circuit break structure in the sheet cover (5), solar cell panel (6) is inlayed at the top of outer cabinet (1), solar cell panel (6) are connected with battery (7) through the charging circuit electricity, one side that outer cabinet (1) is close to instrument box (2) is provided with cabinet door (8), the battery (7) is arranged in a cabinet door (8), and a conventional detection structure and a temporary detection structure are arranged in the cabinet door (8).
2. The outdoor power distribution cabinet indicating instrument electric shock prevention structure according to claim 1, wherein the electric leakage circuit breaking structure comprises a plurality of wedge blocks (9), each wedge block (9) is provided with a plate sleeve (5) in matched connection with the wedge block, an inclined surface portion of each wedge block (9) is opposite to one side, located in the plate sleeve (5), of the sealing plate (4), the other end of each wedge block (9) penetrates through the plate sleeve (5) in a sealing mode and is communicated with a circuit breaker box (10), a piezoelectric plate (11) is vertically and fixedly arranged in each circuit breaker box (10), each wedge block (9) is fixedly connected with a first spring (12) on one side, located in the circuit breaker box (10), and the other ends of the first springs (12) are abutted against the plate sleeves (5).
3. The outdoor power distribution cabinet indicating instrument electric shock prevention structure is characterized in that one end, far away from the first spring (12), of the piezoelectric plate (11) is fixedly connected with a second spring (13), the second spring (13) is made of a conductor material, the other end of the second spring (13) is fixedly connected with a first connecting block (141), the first connecting block (141) abuts against a second connecting block (142), one side, opposite to the first connecting block (141) and the second connecting block (142), of each connecting layer (143) is provided with a connecting layer (143), the two connecting layers (143) are respectively communicated with a power circuit in a power distribution cabinet through a wire, and the second spring (13) is in a compressed state when the first connecting block (141) abuts against the second connecting block (142).
4. The outdoor indicating instrument of the power distribution cabinet electric shock prevention structure is characterized in that, the conventional detection structure comprises a detection cavity (15) arranged in the cabinet door (8), the detection cavity (15) is filled with electrorheological fluid, the surface of the electrorheological fluid is provided with a filtering membrane (16), the outer ring part of the filtering membrane (16) is fixedly connected with a sliding block (17), a movable groove (18) is arranged at the joint of the detection cavity (15) and the sliding block (17), the bottom of the movable groove (18) is fixedly connected with a plurality of lifting rods (19), the top of each lifting rod (19) is fixedly connected with the lower end face of the sliding block (17), a conductive layer (20) is arranged at the top of the movable groove (18), the conductive layer (20) is electrically connected with a warning lamp, the sliding block (17) and the conducting layer (20) are respectively and electrically connected with the battery (7).
5. The outdoor power distribution cabinet indicating instrument electric shock prevention structure is characterized in that the temporary detection structure comprises an angle sensor and a circuit breaker which are arranged in a cabinet door (8), the angle sensor is electrically connected with an electromagnet (21), the electromagnet (21) is magnetically attracted with a sliding block (17), the electromagnet (21) is arranged at the top of a movable groove (18) and is connected with the circuit breaker, a battery (7) is electrically connected with a second spring (13) through a lead, the sealing plate (4) is made of a transparent insulating material, a connecting rod (22) is fixedly connected with the first connecting block (141), the connecting rod (22) is arranged on one side of an inner ring of the second spring (13), and the other end of the connecting rod (22) is fixedly connected with the piezoelectric plate (11).
Priority Applications (1)
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CN202210415212.0A CN114665396B (en) | 2022-04-20 | 2022-04-20 | Electric shock prevention structure for indicating instrument of outdoor power distribution cabinet |
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CN202210415212.0A CN114665396B (en) | 2022-04-20 | 2022-04-20 | Electric shock prevention structure for indicating instrument of outdoor power distribution cabinet |
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CN114665396B CN114665396B (en) | 2022-12-20 |
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CN112216572A (en) * | 2020-10-16 | 2021-01-12 | 周长鸿 | High-low voltage power distribution cabinet indicating instrument protection against electric shock structure |
CN212849560U (en) * | 2020-09-14 | 2021-03-30 | 国网河南省电力公司社旗县供电公司 | Safe switch board |
CN213151341U (en) * | 2020-09-23 | 2021-05-07 | 重庆重润热力供应有限公司 | Novel full-insulation power distribution cabinet |
CN113133239A (en) * | 2021-03-03 | 2021-07-16 | 孙超韩 | Electric appliance cabinet for preventing live working |
CN214278386U (en) * | 2020-12-25 | 2021-09-24 | 河南泰油谷电气集团有限公司 | Block terminal electric leakage detection device |
CN214280553U (en) * | 2020-12-02 | 2021-09-24 | 青岛盛德源电气机柜有限公司 | Electric shock prevention open-mounted distribution box |
CN214506113U (en) * | 2021-01-25 | 2021-10-26 | 唐山市同润电力设备有限公司 | Safe type switch board based on overhaul outage |
CN214740964U (en) * | 2021-02-08 | 2021-11-16 | 成都无边际科技有限公司 | Community big data access control system fixing device |
CN216214984U (en) * | 2021-10-11 | 2022-04-05 | 湖北恒晶电气有限公司 | High-voltage switch cabinet |
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2022
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GB0823595D0 (en) * | 2008-12-29 | 2009-01-28 | Whitman Keith J | An improved electrical consumer unit |
CN208062531U (en) * | 2018-04-24 | 2018-11-06 | 武威栩辰机电制造有限公司 | A kind of AC distribution cabinet equipment |
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CN212849560U (en) * | 2020-09-14 | 2021-03-30 | 国网河南省电力公司社旗县供电公司 | Safe switch board |
CN213151341U (en) * | 2020-09-23 | 2021-05-07 | 重庆重润热力供应有限公司 | Novel full-insulation power distribution cabinet |
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CN214280553U (en) * | 2020-12-02 | 2021-09-24 | 青岛盛德源电气机柜有限公司 | Electric shock prevention open-mounted distribution box |
CN214278386U (en) * | 2020-12-25 | 2021-09-24 | 河南泰油谷电气集团有限公司 | Block terminal electric leakage detection device |
CN214506113U (en) * | 2021-01-25 | 2021-10-26 | 唐山市同润电力设备有限公司 | Safe type switch board based on overhaul outage |
CN214740964U (en) * | 2021-02-08 | 2021-11-16 | 成都无边际科技有限公司 | Community big data access control system fixing device |
CN113133239A (en) * | 2021-03-03 | 2021-07-16 | 孙超韩 | Electric appliance cabinet for preventing live working |
CN216214984U (en) * | 2021-10-11 | 2022-04-05 | 湖北恒晶电气有限公司 | High-voltage switch cabinet |
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