CN210296935U - Multifunctional low-voltage metering cabinet - Google Patents
Multifunctional low-voltage metering cabinet Download PDFInfo
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- CN210296935U CN210296935U CN201921698122.7U CN201921698122U CN210296935U CN 210296935 U CN210296935 U CN 210296935U CN 201921698122 U CN201921698122 U CN 201921698122U CN 210296935 U CN210296935 U CN 210296935U
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Abstract
The utility model discloses a multifunctional low-voltage metering cabinet, which comprises a metering cabinet body, wherein a plurality of clapboards are arranged in the metering cabinet body, the metering cabinet body is divided into a plurality of independent metering chambers by the clapboards, and the metering chambers are provided with lead sealing supports and concealed hinges; wherein the measurement room that is provided with the strapping table still is provided with the observation window, the observation window sets up on corresponding measurement room door, and passes through four edges of observation window can observe all strapping tables of the measurement room that the observation window corresponds. The space of the conventional metering cabinet is divided into a plurality of independent metering chambers, so that the different metering chambers are kept independent of each other in structure, are communicated with each other in function, and can be matched with various wiring scheme cabinets. And set up lead sealing support and concealed installation hinge, guaranteed the security of every measurement room, the setting up of observation window is convenient to the observation of strapping table, and then has realized the multifunctionality of strapping table, and the suitability obtains improving.
Description
Technical Field
The utility model relates to an electrical technology field, concretely relates to multi-functional low pressure measurement cabinet.
Background
The cabinet body for installing the special meter (device) is called as a metering cabinet. The metering cabinet is generally referred to as an electric energy metering cabinet, a special cabinet type electricity consumption metering device is arranged in the electric energy metering cabinet, and the electricity consumption metering device is a general term for the combination of all electric equipment, electric parts and mechanical structures for metering electric energy.
However, the traditional metering cabinet electricity larceny prevention device is not designed sufficiently, and a common padlock is not reliable enough, so that electricity larceny can be caused. The compartments are not clear enough, the metering mutual inductor has no special compartments, the functional compartments are not independent from each other, the metering and load control meter hanging chamber of the watt-hour meter and the load control meter hanging chamber are in the same compartment, and the functional units are not independent from each other. The metering meters and the metering transformers are inconvenient to observe, the positions of various manufacturers of a metering room are not uniform, and some kilowatt-hour meters are arranged at the lower part of the cabinet, so that users cannot observe and read the meters conveniently. The specific situation of the metering transformer can not be seen from the outside of the cabinet, and the electricity-stealing prevention authenticity is not well judged by the acceptance of the electric power bureau. The metering current transformer is directly sleeved on the busbar branch, and the safety performance in the transportation process cannot be guaranteed. Protection between the branch of arranging in the metering chamber and baffle is not enough, and safe insulating distance is not well ensured.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem, proposed following technical scheme:
in a first aspect, an embodiment of the utility model provides a multifunctional low-voltage metering cabinet, including a metering cabinet body, a plurality of baffles are arranged in the metering cabinet body, the metering cabinet body is divided into a plurality of independent metering chambers by the baffles, and the metering chambers are all provided with lead sealing supports and concealed hinges; wherein the measurement chamber that is provided with the strapping table still is provided with the observation window, the observation window sets up on corresponding measurement room door, and passes through four edges of observation window can observe all strapping tables of the measurement chamber that the observation window corresponds
By adopting the implementation mode, the space of the conventional metering cabinet is divided into a plurality of independent metering chambers, so that the different metering chambers are kept independent of each other in structure, are communicated with each other in function and can be matched with various wiring scheme cabinets. And set up lead sealing support and concealed installation hinge, guaranteed the security of every measurement room, the setting up of observation window is convenient to the observation of strapping table, and then has realized the multifunctionality of strapping table, and the suitability obtains improving.
With reference to the first aspect, in a first possible implementation manner of the first aspect, a baffle is disposed in the metering cabinet body, the metering cabinet body is divided into a first cabinet body and a second cabinet body by the baffle, a plurality of partition plates are disposed in the first cabinet body and the second cabinet body respectively, the first cabinet body is divided into a negative control chamber, a charging metering chamber and an incoming line breaker chamber, and the charging metering chamber is disposed between the negative control chamber and the incoming line breaker chamber; and the second cabinet body is divided into a metering current transformer chamber, a busbar incoming line and a current transformer chamber, and the metering current transformer chamber is adjacent to the busbar incoming line and the current transformer chamber.
In combination with the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, the load control room comprises a load control room door, the load control room door is movably connected with the measurement cabinet body, one end of the load control room door is connected with the measurement cabinet body through a first concealed hinge, the other end of the load control room door is provided with a first door lock and a first lead sealing structure, the first lead sealing structure is fixedly connected with the load control room door, and a first observation window is arranged on the load control room door.
In combination with the second possible implementation manner of the first aspect, in the third possible implementation manner of the first aspect, the billing measurement room includes a billing measurement room door, the billing measurement room door is movably connected to the measurement cabinet body, one end of the billing measurement room door is connected to the measurement cabinet body through a second concealed hinge, the other end of the billing measurement room door is provided with a second door lock and a second lead sealing structure, the second lead sealing structure is fixedly connected to the billing measurement room door, and a second observation window is arranged on the billing measurement room door.
Combine the possible implementation of first aspect third, in the possible implementation of first aspect fourth, inlet wire circuit breaker room includes circuit breaker room door, circuit breaker room door with measurement cabinet body swing joint, the one end of circuit breaker room door with be connected through the third concealed installation type hinge between the measurement cabinet body, the other end is provided with the third lock, indoor pilot lamp and the multi-functional table of being provided with of inlet wire circuit breaker.
In combination with the first possible implementation manner of the first aspect, in the fifth possible implementation manner of the first aspect, the metering current transformer room includes a metering current transformer room door, the metering current transformer room door is movably connected with the metering cabinet body, one end of the metering current transformer room door is connected with the metering cabinet body through a fourth concealed hinge, the other end of the metering current transformer room door is provided with a fourth door lock and a third lead sealing structure, the third lead sealing structure is fixedly connected with the metering current transformer room door, and a third observation window is arranged on the metering current transformer room door.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, a metering current transformer is arranged in the metering current transformer chamber, the metering current transformer is fixedly installed in the metering current transformer chamber through a double-hole beam, the metering current transformer is sleeved on a first busbar branch, a second busbar branch and a third busbar branch are respectively arranged at two ends of the first busbar branch, one end of the second busbar branch is connected with one end of the first busbar branch, and the other end of the second busbar branch is arranged at a position close to the top outside the metering current transformer chamber; one end of the third busbar branch is connected with the other end of the first busbar branch, and the other end of the third busbar branch is arranged in the busbar incoming line and the current transformer chamber.
In combination with the first possible implementation manner of the first aspect, in the seventh possible implementation manner of the first aspect, the female incoming line and current transformer room includes a rear lower door, the rear lower door is movably connected with the metering cabinet body, one end of the rear lower door is connected with the metering cabinet body through a fifth concealed hinge, a fifth door lock is arranged at the other end of the rear lower door, an incoming line current transformer and an incoming line female row branch are arranged in the female incoming line and current transformer room, and the incoming line female row branch is connected with an incoming line end and the incoming line current transformer.
With reference to any one of the second to seventh possible implementation manners of the first aspect, in an eighth possible implementation manner of the first aspect, the lead sealing structure includes a lead sealing bolt and an L-shaped lead sealing support, the lead sealing support is respectively connected to the metering cabinet body and the door body, and the lead sealing bolt is respectively fixedly connected to the metering cabinet body and the door body.
With reference to any one of the first to seventh possible implementation manners of the first aspect, in a ninth possible implementation manner of the first aspect, an insulating plate is disposed on the partition plate, and the insulating plate is fixedly connected to the partition plate; one side of the metering cabinet body is provided with a first upper sealing plate and a first lower sealing plate, the other side is provided with a second upper sealing plate and a second lower sealing plate, and the first upper sealing plate, the first lower sealing plate, the second upper sealing plate and the second lower sealing plate are fixedly connected with the metering cabinet body.
Drawings
Fig. 1 is a schematic structural view of a multifunctional low-voltage metering cabinet according to an embodiment of the present invention;
fig. 2 is a front view of a multifunctional low-voltage metering cabinet provided by an embodiment of the present invention;
FIG. 3; do the embodiment of the utility model provides a back view of multi-functional low pressure measurement cabinet
In fig. 1-3, the symbols are represented as:
1-metering cabinet body, 2-baffle, 3-load control room, 4-metering room, 5-incoming line breaker room, 6-metering current transformer room, 7-busbar incoming line and current transformer room, 8-load control room door, 9-first built-in hinge, 10-first door lock, 11-first lead sealing structure, 12-first observation window, 13-metering room door, 14-second built-in hinge, 15-second door lock, 16-second lead sealing structure, 17-second observation window, 18-breaker room door, 19-third built-in hinge, 20-third door lock, 21-indicator lamp, 22-multifunctional meter, 23-metering current transformer room door, 24-fourth built-in hinge, 25-fourth door lock, 26-a third lead sealing structure, 27-a third observation window, 28-a metering current transformer, 29-a double-hole beam, 30-a first busbar branch, 31-a second busbar branch, 32-a third busbar branch, 33-a rear lower door, 34-a fifth concealed hinge, 35-a fifth door lock, 36-an incoming current transformer, 37-an incoming busbar branch, 38-a lead sealing bolt, 39-an L-shaped lead sealing support, 40-a first upper sealing plate, 41-a first lower sealing plate, 42-a second upper sealing plate and 43-a second lower sealing plate.
Detailed Description
The present invention will be described with reference to the accompanying drawings and embodiments.
Fig. 1 is the embodiment of the utility model provides a structural schematic diagram, fig. 2 of a multi-functional low pressure measurement cabinet do the utility model provides a front view, fig. 3 of a multi-functional low pressure measurement cabinet do the embodiment of the utility model provides a rear view of a multi-functional low pressure measurement cabinet.
The embodiment of the utility model provides a multi-functional low-voltage metering cabinet includes: the metering cabinet comprises a metering cabinet body 1, wherein a plurality of partition plates are arranged in the metering cabinet body 1, the metering cabinet body 1 is divided into a plurality of independent metering chambers by the plurality of partition plates, and each metering chamber is provided with a lead sealing support and a concealed hinge; wherein the measurement room that is provided with the strapping table still is provided with the observation window, the observation window sets up on corresponding measurement room door, and passes through four edges of observation window can observe all strapping tables of the measurement room that the observation window corresponds.
Referring to fig. 1, a baffle 2 is arranged in a metering cabinet body 1, the baffle 2 divides the metering cabinet body 1 into a first cabinet body and a second cabinet body, a plurality of partition plates are respectively arranged in the first cabinet body and the second cabinet body, the first cabinet body is divided into a negative control chamber 3, a charging metering chamber 4 and an incoming line breaker chamber 5, and the charging metering chamber 4 is arranged between the negative control chamber 3 and the incoming line breaker chamber 5; and the second cabinet body is divided into a metering current transformer 28 chamber 6 and a busbar incoming line and current transformer chamber 7, wherein the metering current transformer 28 chamber 6 and the busbar incoming line and current transformer chamber 7 are adjacently arranged.
Referring to fig. 2, the load control room 3 includes a load control room door 8, the load control room door 8 is movably connected to the metering cabinet body 1, one end of the load control room door 8 is connected to the metering cabinet body 1 through a first concealed hinge 9, and the first concealed hinge 9 ensures that the load control room door 8 cannot be detached from the outside. The other end is provided with first lock 10 and first lead sealing structure 11, first lead sealing structure 11 and burden accuse room door 8 fixed connection, be provided with first observation window 12 on the burden accuse room door 8, first observation window 12 is the glass observation window.
The accounting measurement room 4 includes accounting measurement room door 13, accounting measurement room door 13 with measurement cabinet body 1 swing joint, accounting measurement room door 13 one end with be connected through second concealed installation type hinge 14 between the measurement cabinet body 1, second concealed installation type hinge 14's effect is the unable dismantlement from the outside in order to guarantee accounting measurement room door 13 equally. The other end is provided with second door lock 15 and second lead sealing structure 16, second lead sealing structure 16 and accounting measurement room door 13 fixed connection, be provided with second observation window 17 on accounting measurement room door 13, second observation window 17 is for strengthening general type glass observation window, glass size and specification and first observation window 12 homogeneous phase.
Inlet wire circuit breaker room 5 includes circuit breaker room door 18, circuit breaker room door 18 with measurement cabinet body 1 swing joint, circuit breaker room door 18 one end with be connected through third concealed installation type hinge 19 between the measurement cabinet body 1, third concealed installation type hinge 19's effect is also in order to guarantee that circuit breaker room door 18 can't dismantle from the outside. The other end is provided with third lock 20, be provided with pilot lamp 21 and multi-functional table 22 in the inlet wire circuit breaker room 5, multi-functional table 22 instructs electrical parameter, pilot lamp 21 is used for showing the circuit breaker and starts, moves and stops.
Referring to fig. 3, the metering current transformer 28 chamber 6 comprises a metering current transformer 28 chamber door 23, the metering current transformer 28 chamber door 23 is movably connected with the metering cabinet body 1, one end of the metering current transformer 28 chamber door 23 is connected with the metering cabinet body 1 through a fourth concealed hinge 24, the fourth concealed hinge 24 has a prying-resistant function, and the metering current transformer 28 chamber door 23 is guaranteed to be not detached from the outside. The other end is provided with a fourth door lock 25 and a third lead sealing structure 26, the third lead sealing structure 26 is fixedly connected with a door 23 of a metering current transformer 28, and a third observation window 27 is arranged on the door 23 of the metering current transformer 28. The third observation window 27 is a reinforced general-purpose glass observation window, and the size and specification of the glass are the same as those of the first observation window 12.
Further referring to fig. 1, a metering current transformer 28 is arranged in the metering current transformer 28 chamber 6, the metering current transformer 28 is fixedly installed in the metering current transformer 28 chamber 6 through a double-hole beam 29, the metering current transformer 28 is sleeved on a first busbar branch 30, two ends of the first busbar branch 30 are respectively provided with a second busbar branch 31 and a third busbar branch 32, one end of the second busbar branch 31 is connected with one end of the first busbar branch 30, and the other end is arranged at a position close to the top outside the metering current transformer 28 chamber 6; one end of the third busbar branch 32 is connected to the other end of the first busbar branch 30, and the other end is disposed in the busbar incoming line and current transformer chamber 7.
The three busbar branches are convenient for installation and field maintenance of the metering current transformer 28, and in order to prevent bumping damage of the metering current transformer in the transportation process, the double-hole beam 29 is specially arranged for installing the current transformer. And insulating plates are respectively arranged on the upper partition plate of the current transformer chamber and the lower partition plate of the current transformer chamber. The insulating plate has good insulating property, and the electrical insulation distance is reliably ensured.
As shown in fig. 2 and 3, female inlet wire and current transformer room 7 includes back lower door 33, back lower door 33 with measurement cabinet body 1 swing joint, the one end of back lower door 33 with be connected through fifth concealed installation type hinge 34 between the measurement cabinet body 1, the other end is provided with fifth lock 35, female arranging inlet wire and being provided with inlet wire current transformer 36 and female branch of inlet wire 37 in the current transformer room 7, female branch of inlet wire 37 connect the inlet wire end with inlet wire current transformer 36. The user cable is led in from the bottom of the cabinet body and is hung on the incoming busbar branch 37, so that the cabinet is simple, convenient and quick.
The utility model discloses in implementing, the lead sealing structure includes lead sealing bolt 38 and L type lead sealing support 39, the lead sealing support is connected respectively the measurement cabinet body 1 and the door body, lead sealing bolt 38 respectively with the measurement cabinet body 1 and the door body fixed connection.
In this embodiment, the negative control room door 8, the negative control room upper partition plate, the negative control mounting plate and the charging metering room upper partition plate form a closed negative control room 3. The door 13 of the metering chamber, the upper partition plate of the metering chamber, the mounting plate of the watt-hour meter and the lower partition plate of the metering chamber form a closed metering chamber 4. The inlet wire breaker chamber 5 is composed of a lower metering chamber partition plate, a breaker rear partition plate, a breaker chamber door 18, a breaker mounting plate, a first lower sealing plate 41 and a door beam. The current transformer chamber upper partition plate, the current transformer chamber door, the load control chamber rear partition plate, the watt-hour meter mounting plate, the metering chamber upper partition plate, the metering chamber lower partition plate and the current transformer chamber lower partition plate form a closed current transformer chamber. The lower baffle of the current transformer chamber, the rear baffle of the circuit breaker, the bottom baffle and the rear lower door 33 form a closed busbar incoming line and a current transformer chamber 7. The insulation board is arranged on the partition board and fixedly connected with the partition board, the insulation board has good insulation performance, and the electrical insulation distance is reliably guaranteed.
One side of the metering cabinet body 1 is provided with a first upper sealing plate 40 and a first lower sealing plate 41, the other side is provided with a second upper sealing plate 42 and a second lower sealing plate 43, and the first upper sealing plate 40, the first lower sealing plate 41, the second upper sealing plate 42 and the second lower sealing plate 43 are fixedly connected with the metering cabinet body 1. The first upper sealing plate 40, the first lower sealing plate 41, the second upper sealing plate 42 and the second lower sealing plate 43 are fixed by screws, so that the problem that the door often sags due to too long size is solved.
Known from the above embodiments, the embodiment provides a multifunctional low-voltage metering cabinet, divides the conventional metering cabinet space into a plurality of independent metering chambers, realizes that different metering chambers keep the structure independent from each other, and are communicated with each other functionally, and can be matched with various wiring scheme cabinets. And set up lead sealing support and concealed installation hinge, guaranteed the security of every measurement room, the setting up of observation window is convenient to the observation of strapping table, and then has realized the multifunctionality of strapping table, and the suitability obtains improving.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be 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. Also, 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 an … …" does not exclude the presence of other identical 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 of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and if it is replaced, the present invention is only combined with and described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (10)
1. A multifunctional low-voltage metering cabinet comprises a metering cabinet body and is characterized in that a plurality of partition plates are arranged in the metering cabinet body, the metering cabinet body is divided into a plurality of independent metering chambers by the plurality of partition plates, and each metering chamber is provided with a lead sealing support and a concealed hinge; wherein the measurement room that is provided with the strapping table still is provided with the observation window, the observation window sets up on corresponding measurement room door, and passes through four edges of observation window can observe all strapping tables of the measurement room that the observation window corresponds.
2. The multifunctional low-voltage metering cabinet according to claim 1, wherein a baffle is arranged in the metering cabinet body, the baffle divides the metering cabinet body into a first cabinet body and a second cabinet body, a plurality of partition plates are respectively arranged in the first cabinet body and the second cabinet body, the first cabinet body is divided into a negative control chamber, a charging metering chamber and an incoming line breaker chamber, and the charging metering chamber is arranged between the negative control chamber and the incoming line breaker chamber; and the second cabinet body is divided into a metering current transformer chamber, a busbar incoming line and a current transformer chamber, and the metering current transformer chamber is adjacent to the busbar incoming line and the current transformer chamber.
3. The multifunctional low-voltage metering cabinet according to claim 2, wherein the negative control room comprises a negative control room door, the negative control room door is movably connected with the metering cabinet body, one end of the negative control room door is connected with the metering cabinet body through a first concealed hinge, the other end of the negative control room door is provided with a first door lock and a first lead sealing structure, the first lead sealing structure is fixedly connected with the negative control room door, and a first observation window is arranged on the negative control room door.
4. The multifunctional low-voltage metering cabinet according to claim 3, wherein the billing metering chamber comprises a billing metering chamber door, the billing metering chamber door is movably connected with the metering chamber body, one end of the billing metering chamber door is connected with the metering chamber body through a second concealed hinge, the other end of the billing metering chamber door is provided with a second door lock and a second lead sealing structure, the second lead sealing structure is fixedly connected with the billing metering chamber door, and a second observation window is arranged on the billing metering chamber door.
5. The multifunctional low-voltage metering cabinet according to claim 4, wherein the incoming line breaker chamber comprises a breaker chamber door, the breaker chamber door is movably connected with the metering cabinet body, one end of the breaker chamber door is connected with the metering cabinet body through a third concealed hinge, a third door lock is arranged at the other end of the breaker chamber door, and an indicator lamp and a multifunctional meter are arranged in the incoming line breaker chamber.
6. The multifunctional low-voltage metering cabinet according to claim 2, wherein the metering current transformer chamber comprises a metering current transformer chamber door, the metering current transformer chamber door is movably connected with the metering cabinet body, one end of the metering current transformer chamber door is connected with the metering cabinet body through a fourth concealed hinge, the other end of the metering current transformer chamber door is provided with a fourth door lock and a third lead sealing structure, the third lead sealing structure is fixedly connected with the metering current transformer chamber door, and a third observation window is arranged on the metering current transformer chamber door.
7. The multifunctional low-voltage metering cabinet according to claim 6, wherein a metering current transformer is arranged in the metering current transformer chamber, the metering current transformer is fixedly installed in the metering current transformer chamber through a double-hole beam, the metering current transformer is sleeved on a first busbar branch, a second busbar branch and a third busbar branch are respectively arranged at two ends of the first busbar branch, one end of the second busbar branch is connected with one end of the first busbar branch, and the other end of the second busbar branch is arranged at a position close to the top outside the metering current transformer chamber; one end of the third busbar branch is connected with the other end of the first busbar branch, and the other end of the third busbar branch is arranged in the busbar incoming line and the current transformer chamber.
8. The multifunctional low-voltage metering cabinet according to claim 2, wherein the busbar incoming line and current transformer chamber comprises a rear lower door, the rear lower door is movably connected with the metering cabinet body, one end of the rear lower door is connected with the metering cabinet body through a fifth concealed hinge, a fifth door lock is arranged at the other end of the rear lower door, an incoming line current transformer and an incoming line busbar branch are arranged in the busbar incoming line and current transformer chamber, and the incoming line busbar branch is connected with an incoming line end and the incoming line current transformer.
9. The multifunctional low-voltage metering cabinet according to any one of claims 3 to 7, wherein the lead sealing structure comprises a lead sealing bolt and an L-shaped lead sealing support, the lead sealing support is respectively connected with the metering cabinet body and the door body, and the lead sealing bolt is respectively fixedly connected with the metering cabinet body and the door body.
10. The multifunctional low-voltage metering cabinet according to any one of claims 2 to 8, wherein an insulating plate is arranged on the partition plate, and the insulating plate is fixedly connected with the partition plate; one side of the metering cabinet body is provided with a first upper sealing plate and a first lower sealing plate, the other side is provided with a second upper sealing plate and a second lower sealing plate, and the first upper sealing plate, the first lower sealing plate, the second upper sealing plate and the second lower sealing plate are fixedly connected with the metering cabinet body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921698122.7U CN210296935U (en) | 2019-10-11 | 2019-10-11 | Multifunctional low-voltage metering cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921698122.7U CN210296935U (en) | 2019-10-11 | 2019-10-11 | Multifunctional low-voltage metering cabinet |
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| CN210296935U true CN210296935U (en) | 2020-04-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601023A (en) * | 2019-10-11 | 2019-12-20 | 山东泰开成套电器有限公司 | Multifunctional low-voltage metering cabinet |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110601023A (en) * | 2019-10-11 | 2019-12-20 | 山东泰开成套电器有限公司 | Multifunctional low-voltage metering cabinet |
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