CN110829215B - Cover plate with inspection window, high-safety low-voltage cabinet and cover plate mounting method - Google Patents
Cover plate with inspection window, high-safety low-voltage cabinet and cover plate mounting method Download PDFInfo
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- CN110829215B CN110829215B CN201911235152.9A CN201911235152A CN110829215B CN 110829215 B CN110829215 B CN 110829215B CN 201911235152 A CN201911235152 A CN 201911235152A CN 110829215 B CN110829215 B CN 110829215B
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- cover plate
- cabinet
- circuit breaker
- knife switch
- low
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- 238000007689 inspection Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
- H02B1/044—Mounting through openings
-
- 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
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
-
- 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
- H02B1/305—Cable entries
-
- 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
- H02B1/306—Accessories, e.g. windows
-
- 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
- H02B1/34—Racks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Patch Boards (AREA)
Abstract
The application discloses a take cover plate, high safe type low-voltage cabinet and cover plate installation method of inspection window is provided with the inspection window hole on the cover plate, and the embedded inspection glass window that is equipped with of inspection window hole passes through the cover plate support to be installed on low-voltage cabinet side crossbeam, utilizes the cover plate to seal up the business turn over line end of plastic casing circuit breaker and knife switch in the low-voltage cabinet, can play safety protection's effect, and the inspection glass window that sets up on the cover plate again observes the condition of inlet wire end and outlet wire end, is convenient for observe again when utilizing the combination of cover plate plus inspection glass window to realize safety protection to environmental protection is low.
Description
Technical Field
The application relates to the technical field of power transmission and transformation, in particular to a cover plate with a viewing window, a high-safety low-voltage cabinet and a cover plate mounting method.
Background
The low-voltage cabinet is an important power device in the current power transmission and transformation field, and is mainly used for electric energy conversion and control, and a plurality of components such as a current transformer, a voltage transformer, various switches and relays are arranged in the low-voltage cabinet and used for controlling the on-off of a circuit.
The plastic shell breaker and the knife switch are used as important circuit control elements in the switch cabinet, and the voltages at the two ends of the plastic shell breaker and the knife switch are higher, but because the wire inlet end connector and the wire outlet end connector of the plastic shell breaker and the knife switch are directly exposed in the low-voltage cabinet, operators are easy to generate electric shock hazard, and larger safety factor exists.
The prior art generally employs two methods for protection:
(1) The whole metal iron plate is used for sealing the joint, so that the effect of safety protection can be achieved, but the condition of the joint cannot be observed, the joint cannot be checked, and whether accidents occur cannot be predicted in advance.
(2) The whole transparent organic glass is adopted as the joint of the protective cover plate sealing cover, but the organic glass has smaller strength, is not high-temperature resistant, is easy to burn and release harmful gas, has higher cost and has unsatisfactory practical application effect.
Disclosure of Invention
In order to solve the technical problems, the application provides the following technical scheme:
in a first aspect, an embodiment of the present application provides a cover plate with a viewing window, a viewing window hole is formed in the cover plate, a viewing glass window is embedded in the viewing window hole, the cover plate is fixedly mounted on a low-voltage cabinet side beam through a cover plate support, and a viewing area of the viewing glass window corresponds to a wire inlet and outlet end area of a molded case circuit breaker and a knife switch.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the cover plate is provided with a plurality of observation windows, the observation windows are uniformly distributed on the cover plate, and different observation windows correspond to different line in and out areas of the molded case circuit breaker and the knife switch.
With reference to the first aspect, in a second possible implementation manner of the first aspect, the housing plate support includes a first support and a second support, fixing holes are formed in the first support and the second support, the first support is movably connected with the housing plate through the fixing holes, and the second support is movably connected with the low-voltage cabinet side beam through the fixing holes.
With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first support and the second support are fixedly connected by welding or integrally formed.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, an included angle formed by the first support and the second support is 90 degrees.
With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the cover plate is an aluminum zinc coated plate that is punched and bent.
With reference to the first aspect, in a sixth possible implementation manner of the first aspect, warning signs are further provided on the front cover plate and the back cover plate, and the warning signs are fixedly connected with the cover plate.
In a second aspect, the embodiment of the application provides a high-safety low-voltage cabinet, including cabinet front plastic casing circuit breaker, cabinet back plastic casing circuit breaker, cabinet front knife switch and cabinet back knife switch, cabinet front plastic casing circuit breaker and cabinet back plastic casing circuit breaker are fixed in the low-voltage cabinet through first circuit breaker mounting panel and second circuit breaker mounting panel respectively, cabinet front knife switch and cabinet back knife switch are fixed in respectively through first knife switch mounting beam and second knife switch mounting beam in the low-voltage cabinet, the low-voltage cabinet still includes a plurality of first aspect's area inspection window's cover plate, cabinet front plastic casing circuit breaker's wire inlet end and wire outlet end are fixed with respectively the area inspection window's cover plate, cabinet back plastic casing circuit breaker's wire inlet end and wire outlet end are fixed with respectively the area inspection window's cover plate, cabinet front knife switch's wire inlet end and wire outlet end are fixed with respectively the area inspection window's cover plate, cabinet back knife switch's wire inlet end and wire outlet end are fixed with the area inspection window respectively.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the low-voltage cabinet further includes a front cabinet busbar and a rear cabinet busbar, where the front cabinet busbar and the rear cabinet busbar are fixed in the low-voltage cabinet by a first busbar mounting beam and a second busbar mounting beam, respectively.
With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the first busbar mounting beam is disposed between the first switch mounting beam and the first breaker mounting plate, and the second busbar mounting beam is disposed between the second switch mounting beam and the second breaker mounting plate.
With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the front bus bar is disposed inside the first bus bar mounting beam, and the rear bus bar is disposed inside the second bus bar mounting beam.
With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the front cabinet busbar is electrically connected with the front cabinet knife switch and the front cabinet plastic shell breaker through copper bars, and the rear cabinet busbar is electrically connected with the rear cabinet knife switch and the rear cabinet plastic shell breaker through copper bars.
By adopting the implementation mode, the cover plate with the inspection window is respectively arranged on the wire inlet end and the wire outlet end of the molded case circuit breaker and the wire inlet end and the wire outlet end of the knife switch in the low-voltage cabinet through the cover plate bracket, so that the wire inlet end joint and the wire outlet end joint of the molded case circuit breaker and the wire inlet end joint and the wire outlet end joint of the knife switch are sealed, operators are prevented from electric shock, safety protection is realized, the inspection glass window is arranged on the cover plate, and the condition of the wire inlet end joint and the wire outlet end joint of the molded case circuit breaker and the knife switch is convenient to observe. And the bus bars are moved from the outer side of the bus bar mounting beam to the inner side of the bus bar mounting beam, so that the distance from an operator is increased, and the safety is further improved.
In a third aspect, a method for installing a cover plate with a viewing window of the first aspect into a high-safety type low-voltage cabinet of the second aspect, the method comprising:
(1) Determining the number, the size and the installation position of the molded case circuit breakers and the knife switches in the low-voltage cabinet according to an electrical drawing;
(2) According to the determined number, size and installation position of the molded case circuit breakers and the knife switches, determining the sizes of the molded case circuit breaker wire inlet and outlet cover plates and the knife switch wire inlet and outlet cover plates, and determining the opening positions and sizes of the inspection window holes on the cover plates, so that observers can observe the wire inlet and outlet conditions of the molded case circuit breakers and the knife switches from different angles;
(3) Determining the size of a cover plate bracket and the number of openings according to the sizes of a wire inlet and outlet cover plate of the molded case circuit breaker and the size of the wire inlet and outlet cover plate of the knife switch;
(4) The cover plates are correspondingly arranged on the inlet and outlet ends of the molded case circuit breaker and the knife switch respectively through the cover plate bracket, so that the cover plates cover the inlet and outlet ends of the molded case circuit breaker and the knife switch.
Drawings
Fig. 1 is a schematic view of a cover plate with a viewing window according to an embodiment of the present application;
FIG. 2 is a schematic view of a shroud plate support according to an embodiment of the present application;
fig. 3 is a schematic front side structure of a high-safety low-voltage cabinet according to an embodiment of the present application;
fig. 4 is a schematic diagram of a rear side structure of a high-safety low-voltage cabinet according to an embodiment of the present application;
fig. 5 is a diagram illustrating a method for installing a cover plate according to an embodiment of the present application.
In fig. 1-5: 1-cover plate, 2-inspection glass window, 3-cover plate bracket, 4-warning sign board, 5-first bracket, 6-second bracket, 7-fixed hole, 8-low-voltage cabinet, 9-first knife switch mounting beam, 10-cabinet front knife switch, 11-first cover plate, 12-second cover plate, 13-cabinet front busbar, 14-first busbar mounting beam, 15-first plastic shell breaker mounting plate, 16-250A plastic shell breaker, 17-third cover plate, 18-fourth cover plate, 19-copper bar, 20-second knife switch mounting beam, 21-fifth cover plate, 22-sixth cover plate, 23-cabinet back busbar, 24-second busbar mounting beam, 25-second plastic shell breaker mounting plate, 26-400A plastic shell breaker, 27-seventh cover plate, 28-eighth cover plate.
Detailed Description
The present invention is described below with reference to the drawings and the detailed description.
Fig. 1 is a cover plate with a viewing window, in which a plurality of square viewing windows are uniformly formed on a cover plate 1, each viewing window is embedded with a viewing glass window 2, the cover plate 1 is mounted on a side beam of a low-voltage cabinet, and a viewing area of the viewing glass window corresponds to a wire inlet and outlet end area of a molded case circuit breaker and a knife switch, and the condition of the wire inlet end and the wire outlet end can be observed from different angles through the viewing glass window 2. The positions and the number of the holes of the observation window holes can be determined according to the positions and the number of the devices arranged on the mounting plate.
Further, in order to facilitate the installation of the housing plate 1 of the present embodiment in the low-voltage cabinet 8, the present embodiment is provided with a housing plate holder 3, as shown in fig. 2, the housing plate holder 3 includes a first holder 5 and a second holder 6, the first holder 5 and the second holder 6 are connected into a whole by welding, and an included angle formed by the first holder 5 and the second holder 6 is 90 °, and the housing plate holder 3 formed by the first holder 5 and the second holder 6 is in an "L" shape. The first bracket 5 and the second bracket 6 are respectively provided with a plurality of fixing holes 7, when the low-voltage cabinet is used, the first bracket 5 is connected with the cover plate 1 through bolts, and the second bracket 6 is connected with a side beam in the low-voltage cabinet 8 through bolts, so that the cover plate 1 is fixed in the low-voltage cabinet 8. In this embodiment, the first bracket 5 and the second bracket 6 may be integrally connected to form the cover plate bracket 3 with an included angle of 90 ° and an "L" shape, which will not be described here.
Fig. 3 and fig. 4 are schematic diagrams of a high-safety low-voltage cabinet using the cover plate according to the present embodiment, where the low-voltage cabinet 8 of the present embodiment is provided with two circuit control systems, which are respectively disposed on the front side of the low-voltage cabinet 8 and the rear side of the low-voltage cabinet 8. As shown in fig. 3, in the front side structure diagram of the low-voltage cabinet 8 of the present embodiment, a first knife switch mounting beam 9 is disposed at the upper portion of the low-voltage cabinet 8, 2 1000A knife switches 10 are fixed on the first knife switch mounting beam 9, the upper end of the knife switch 10 is a wire inlet end of the knife switch 10, the lower end of the knife switch 10 is a wire outlet end of the knife switch 10, a first cover plate 11 is mounted at the upper end of the knife switch 10, a second cover plate 12 is mounted at the lower end of the knife switch 10, and each wire inlet end joint and each wire outlet end joint of the knife switch 10 correspond to one inspection glass window 2 on the cover plate. The inlet end connector and the outlet end connector of the knife switch 10 are covered by the cover plate, and the connector condition can be observed through the observation glass window 2.
Further, the front side of the low-voltage cabinet 8 of the embodiment is provided with the cabinet front busbar 13, the cabinet front busbar 13 is arranged below the second cover plate 12 through the first busbar mounting beam 14, and for enhancing safety, the cabinet front busbar 13 of the embodiment is mounted on the inner side of the first busbar mounting beam 12, so that the safety distance can be increased, and an operator cannot touch the busbar during operation.
A first plastic shell breaker mounting plate 15 is arranged below the cabinet front busbar 13, 3 paths of 250A plastic shell breakers 16 are arranged on the first plastic shell breaker mounting plate 15, the upper end of each 250A plastic shell breaker 16 is a wire inlet end of each 250A plastic shell breaker 16, the lower end of each 250A plastic shell breaker 16 is a wire outlet end of each 250A plastic shell breaker 16, a third cover plate 17 and a fourth cover plate 18 are respectively arranged at the upper end and the lower end of each 250A plastic shell breaker 16, and each wire inlet end joint and each wire outlet end joint of each 250A plastic shell breaker 16 correspond to one inspection glass window 2 on the cover plate. The inlet and outlet terminals of the 250A molded case circuit breaker 16 are capped with a cap plate, and the condition of the terminals can be observed by inspecting the glass window 2.
Further, for enhancing safety and aesthetic property, the bus bar in front of the cabinet of the embodiment is connected with the wire outlet end of the knife switch 10 and the wire inlet end of the 250A molded case circuit breaker 16 through the copper bar 19, so that a disordered connecting wire is not generated, and the safety and aesthetic property are ensured.
As shown in fig. 4, in the rear side structure of the low-voltage cabinet of the present embodiment, a second blade switch mounting beam 20 is provided at the upper portion of the low-voltage cabinet, 2 1000A blade switches 10 are provided on the second blade switch mounting beam 20, a fifth cover plate 21 is provided at the upper end of the blade switch 10, a sixth cover plate 22 is provided at the lower end of the blade switch 10, and each inlet terminal and each outlet terminal of the blade switch 10 corresponds to one inspection glass window 2 provided on the cover plate.
Below the sixth cover plate 22, the post-cabinet busbar 23 is fixed in the low-voltage cabinet 8 by a second busbar mounting beam 24, and the post-cabinet busbar 23 is also provided inside the second busbar mounting beam 24.
A second plastic shell breaker mounting plate 25 is arranged below the cabinet rear busbar 23, a 2-way 400A plastic shell breaker 26 is arranged on the second plastic shell breaker mounting plate 25, a seventh cover plate 27 and an eighth cover plate 28 are respectively arranged at the upper end and the lower end of the 400A plastic shell breaker 26, and each wire inlet end joint and each wire outlet end joint of the 400A plastic shell breaker 26 correspond to one inspection glass window 2 on the cover plate.
Likewise, the post-cabinet busbar 23 of the present embodiment is also connected to the outlet terminal of the knife switch 10, the inlet terminal of the 400A molded case circuit breaker 26, through the copper bar 19.
As can be seen from the above embodiments, the present embodiment provides a cover plate with a viewing window and a high-safety low-voltage cabinet using the same, wherein the cover plate is provided with a viewing window hole, a viewing glass window is embedded in the viewing window hole, and the cover plate is mounted on a side beam of the low-voltage cabinet through a cover plate bracket. The embodiment uses the cover plate to cover the wire inlet end and the wire outlet end of the molded case circuit breaker and the knife switch in the low-voltage cabinet, thereby playing a role in safety protection; the condition of the wire inlet end and the wire outlet end can be observed by the observation glass window arranged on the cover plate, and the combination of the cover plate and the observation glass window is used for realizing safety protection and is convenient for observation, and is environment-friendly and low in cost.
The embodiment of the application also provides a cover plate installation method for installing the cover plate in the high-safety low-voltage cabinet, referring to fig. 5, the method comprises the following steps of;
(1) And determining the number, the size and the installation position of the molded case circuit breakers and the knife switches in the low-voltage cabinet according to the electrical drawing.
(2) According to the determined quantity, size and installation position of the molded case circuit breakers and the knife switches, the sizes of the molded case circuit breaker wire inlet and outlet cover plates and the knife switch wire inlet and outlet cover plates are determined, and simultaneously the opening positions and the sizes of the inspection window holes on the cover plates are determined, so that observers can observe the conditions of the molded case circuit breakers and the knife switches wire inlet and outlet terminals from different angles.
(3) And determining the size of the cover plate bracket and the number of the openings according to the sizes of the wire inlet and outlet cover plates of the molded case circuit breaker and the wire inlet and outlet cover plates of the knife switch.
(4) The cover plates are correspondingly arranged on the inlet and outlet ends of the molded case circuit breaker and the knife switch respectively through the cover plate bracket, so that the cover plates cover the inlet and outlet ends of the molded case circuit breaker and the knife switch.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Of course, the above description is not limited to the above examples, and technical features not described in the present application may be implemented by or using the prior art, which are not described herein in detail; the above examples and drawings are only for illustrating the technical solution of the present application and are not intended to limit the present application, but the present application is described in detail with reference to the preferred embodiments only, and it should be understood by those skilled in the art that the changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present application and the scope of the claims of the present application.
Claims (7)
1. A method of installing a cover plate, characterized by: the cover plate with the following observation window is arranged in the high-safety low-voltage cabinet,
the cover plate with the observation window comprises: the cover plate is provided with a viewing window hole, a viewing glass window is embedded in the viewing window hole, the cover plate is fixedly arranged on the low-voltage cabinet side cross beam through a cover plate bracket, and the viewing area of the viewing glass window corresponds to the line inlet and outlet end areas of the molded case circuit breaker and the knife switch; the cover plate is provided with a plurality of observation window holes which are uniformly distributed on the cover plate, and different observation window holes correspond to different wire inlet and outlet areas of the molded case circuit breaker and the knife switch;
the high-safety low-voltage cabinet comprises a cabinet front plastic shell circuit breaker, a cabinet rear plastic shell circuit breaker, a cabinet front knife switch and a cabinet rear knife switch, wherein the cabinet front plastic shell circuit breaker and the cabinet rear plastic shell circuit breaker are respectively fixed in the low-voltage cabinet through a first circuit breaker mounting plate and a second circuit breaker mounting plate, the cabinet front knife switch and the cabinet rear knife switch are respectively fixed in the low-voltage cabinet through a first knife switch mounting beam and a second knife switch mounting beam, the low-voltage cabinet further comprises a plurality of cover plates with inspection windows, the wire inlet ends and the wire outlet ends of the cabinet front plastic shell circuit breaker are respectively fixed with the cover plates with the inspection windows, the wire inlet ends and the wire outlet ends of the cabinet rear plastic shell circuit breaker are respectively fixed with the cover plates with the inspection windows, and the wire inlet ends and the wire outlet ends of the cabinet front knife switch are respectively fixed with the cover plates with the inspection windows;
a method of mounting a cover plate, comprising:
(1) Determining the number, the size and the installation position of the molded case circuit breakers and the knife switches in the low-voltage cabinet according to an electrical drawing;
(2) According to the determined number, size and installation position of the molded case circuit breakers and the knife switches, determining the sizes of the molded case circuit breaker wire inlet and outlet cover plates and the knife switch wire inlet and outlet cover plates, and determining the opening positions and sizes of the inspection window holes on the cover plates, so that observers can observe the wire inlet and outlet conditions of the molded case circuit breakers and the knife switches from different angles;
(3) Determining the size of a cover plate bracket and the number of openings according to the sizes of a wire inlet and outlet cover plate of the molded case circuit breaker and the size of the wire inlet and outlet cover plate of the knife switch;
(4) The cover plates are correspondingly arranged on the inlet and outlet ends of the molded case circuit breaker and the knife switch respectively through the cover plate bracket, so that the cover plates cover the inlet and outlet ends of the molded case circuit breaker and the knife switch.
2. The cover plate mounting method according to claim 1, wherein: the cover plate support comprises a first support and a second support, fixing holes are formed in the first support and the second support, the first support is movably connected with the cover plate through the fixing holes, and the second support is movably connected with the side cross beam of the low-voltage cabinet through the fixing holes.
3. The cover plate mounting method according to claim 2, wherein: the first support and the second support are fixedly connected through welding or integrally formed.
4. The cover plate mounting method according to claim 1, wherein: the cover plate is also provided with a warning sign board which is fixedly connected with the cover plate.
5. The cover plate mounting method according to claim 1, wherein: still include the busbar before the cabinet and the busbar after the cabinet, the busbar before the cabinet with the busbar after the cabinet is fixed in the low-voltage cabinet through first busbar installation roof beam and second busbar installation roof beam respectively.
6. The cover plate mounting method according to claim 5, wherein: the front busbar is arranged on the inner side of the first busbar mounting beam, and the rear busbar is arranged on the inner side of the second busbar mounting beam.
7. The cover plate mounting method according to claim 5, wherein: the busbar before the cabinet passes through the copper bar with the moulded case circuit breaker before cabinet preceding switch, the cabinet, the busbar after the cabinet passes through the copper bar with moulded case circuit breaker after the cabinet is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235152.9A CN110829215B (en) | 2019-12-05 | 2019-12-05 | Cover plate with inspection window, high-safety low-voltage cabinet and cover plate mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911235152.9A CN110829215B (en) | 2019-12-05 | 2019-12-05 | Cover plate with inspection window, high-safety low-voltage cabinet and cover plate mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110829215A CN110829215A (en) | 2020-02-21 |
| CN110829215B true CN110829215B (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911235152.9A Active CN110829215B (en) | 2019-12-05 | 2019-12-05 | Cover plate with inspection window, high-safety low-voltage cabinet and cover plate mounting method |
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| CN (1) | CN110829215B (en) |
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| CN203983779U (en) * | 2014-08-07 | 2014-12-03 | 国家电网公司 | Power cabinet |
| CN204304224U (en) * | 2014-11-28 | 2015-04-29 | 东风设计研究院有限公司 | One lands power distributing cabinet anti-electric shock apparatus |
| CN205070194U (en) * | 2015-09-17 | 2016-03-02 | 济宁精创开关电器有限公司 | Multi -functional low -voltage switchgear |
| CN205646517U (en) * | 2016-04-20 | 2016-10-12 | 辽宁当凯电力有限公司 | Construction site distribution box |
| JP2016201876A (en) * | 2015-04-08 | 2016-12-01 | 株式会社因幡電機製作所 | Power distribution board |
| CN205846473U (en) * | 2016-07-19 | 2016-12-28 | 华翔翔能电气股份有限公司 | A kind of case step-down extrusion line circuit operation face having protection against electric shock insulation board |
| CN207884132U (en) * | 2018-02-11 | 2018-09-18 | 广东爱富兰建设有限公司 | A kind of protection against electric shock distribution box |
| CN210744494U (en) * | 2019-12-05 | 2020-06-12 | 山东泰开成套电器有限公司 | Cover plate with inspection window and high-safety low-voltage cabinet using cover plate |
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2019
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| JP2005304253A (en) * | 2004-04-15 | 2005-10-27 | Mitsubishi Electric Corp | Distribution board |
| CN202748941U (en) * | 2012-05-31 | 2013-02-20 | 海南光信科技有限公司 | Equipment cabinet of traffic signal controlling machine |
| CN203445450U (en) * | 2013-07-16 | 2014-02-19 | 昆山振宏电子机械有限公司 | Protective separating plate of electrical control cabinet |
| CN203607681U (en) * | 2013-11-14 | 2014-05-21 | 安徽驰纬电气有限公司 | Electrical equipment cabinet with insulated protection cover added around bus |
| CN203983779U (en) * | 2014-08-07 | 2014-12-03 | 国家电网公司 | Power cabinet |
| CN204304224U (en) * | 2014-11-28 | 2015-04-29 | 东风设计研究院有限公司 | One lands power distributing cabinet anti-electric shock apparatus |
| JP2016201876A (en) * | 2015-04-08 | 2016-12-01 | 株式会社因幡電機製作所 | Power distribution board |
| CN205070194U (en) * | 2015-09-17 | 2016-03-02 | 济宁精创开关电器有限公司 | Multi -functional low -voltage switchgear |
| CN205646517U (en) * | 2016-04-20 | 2016-10-12 | 辽宁当凯电力有限公司 | Construction site distribution box |
| CN205846473U (en) * | 2016-07-19 | 2016-12-28 | 华翔翔能电气股份有限公司 | A kind of case step-down extrusion line circuit operation face having protection against electric shock insulation board |
| CN207884132U (en) * | 2018-02-11 | 2018-09-18 | 广东爱富兰建设有限公司 | A kind of protection against electric shock distribution box |
| CN210744494U (en) * | 2019-12-05 | 2020-06-12 | 山东泰开成套电器有限公司 | Cover plate with inspection window and high-safety low-voltage cabinet using cover plate |
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|---|---|
| CN110829215A (en) | 2020-02-21 |
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