CN111817034A - Temporary grounding device safe to use - Google Patents
Temporary grounding device safe to use Download PDFInfo
- Publication number
- CN111817034A CN111817034A CN202010481943.6A CN202010481943A CN111817034A CN 111817034 A CN111817034 A CN 111817034A CN 202010481943 A CN202010481943 A CN 202010481943A CN 111817034 A CN111817034 A CN 111817034A
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- lock
- grounding
- assembly
- wiring
- piece
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention discloses a temporary grounding device safe to use, which comprises a grounding assembly for connecting a grounding wire and a wiring assembly for connecting a conductor, wherein the wiring assembly is electrically connected with the grounding assembly, the temporary grounding device also comprises an interlocking assembly, the interlocking assembly comprises a first grounding lock arranged on the grounding assembly, a matching piece and a wiring lock arranged on the wiring assembly, the matching piece drives the first grounding lock to lock the grounding assembly and the grounding wire, and in the locked state of the first grounding lock, the matching piece can be separated from the first grounding lock and drives the wiring lock to lock the wiring assembly and the conductor. According to the invention, the operation flow of the constructor is limited by the interlocking component, so that the constructor can obtain the unlocking component to realize the grounding of the grounding component by cutting off the power supply firstly, and can obtain the matching component to realize the connection of the wiring component and the conductor only after the grounding of the grounding component is finished, thereby preventing safety accidents caused by the misoperation of the constructor and ensuring the life health safety of the constructor.
Description
Technical Field
The invention belongs to the field of electric power overhaul equipment, and particularly relates to a temporary grounding device which is safe to use.
Background
At present, accidents caused by the irregular use of the temporary grounding device occur occasionally, and the electrical misoperation accidents related to the temporary grounding device account for 60% of the total number of misoperation accidents. The reason for this is that when the power system is constructed and maintained, the conductor needs to be grounded through the temporary grounding device according to safety regulations, so that the electric shock of workers due to the electrified conductor is prevented. However, due to the difference between the working experience and the safety consciousness of the workers, the workers do not carry out the installation of the temporary grounding device according to the safe operation flow, the safety regulation is not executed in place, and accidents are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a safe temporary grounding device which can prevent the misoperation of a maintainer.
In order to solve the technical problems, the invention adopts the following technical scheme: a temporary grounding device safe to use comprises a grounding assembly used for being connected with a grounding wire and a wiring assembly used for being connected with a conductor, wherein the wiring assembly is electrically connected with the grounding assembly, the temporary grounding device further comprises an interlocking assembly, the interlocking assembly comprises a first grounding lock arranged on the grounding assembly, a matching piece and a wiring lock arranged on the wiring assembly, the matching piece drives the first grounding lock to lock the grounding assembly and the grounding wire, and in the first grounding lock locking state, the matching piece can be separated from the first grounding lock and drives the wiring lock to lock the wiring assembly and the conductor.
In above-mentioned interim earthing device safe in utilization, the interlocking subassembly is still including locating the second ground connection lock that is used for the first ground connection of locking to lock on the ground connection subassembly, and second ground connection lock is including locating the unlocking piece of locating in the cubical switchboard, and under the power off state in the cubical switchboard, the unlocking piece can break away from in order to unblock second ground connection lock from the cubical switchboard.
In the temporary grounding device safe in use, the grounding assembly comprises a clamping mechanism for clamping the grounding wire and a limiting mechanism, and the first grounding lock locks the clamping mechanism through the limiting mechanism.
In the temporary grounding device safe in use, the clamping mechanism comprises a fixed head, a pressing head and a push rod of which the end part is rotatably connected with the pressing head, the push rod is in threaded connection with the fixed head, and the pressing head is pushed by the rotating push rod to clamp the grounding wire together with the fixed head.
In the above-mentioned interim earthing device safe in utilization, the pressure head includes the casing, and stop gear locates in the casing, is equipped with the through-hole on the diapire of casing, and the tip of push rod passes the through-hole and stretches into inside and the roof counterbalance of casing.
In the temporary grounding device safe in use, the limiting mechanism comprises a gear fixed at the end part of the push rod, a pushing part, a sliding block arranged between the gear and the pushing part, and an elastic resetting part for pushing the sliding block to be away from the gear, wherein one side, facing the gear, of the sliding block is provided with a limiting tooth meshed with the gear, and the pushing part pushes the sliding block to move towards the gear and extrude the elastic resetting part, so that the limiting tooth is meshed with the gear to prevent the push rod from rotating.
In the temporary grounding device safe in use, the shell is internally provided with the slide rail, and the slide block and the reset piece are arranged in the slide rail.
In the temporary grounding device safe in use, the pushing piece is rotationally connected in the shell, the first grounding lock comprises a first lock cylinder and a first cam rotating with the first lock cylinder, and the first cam and the pushing piece are meshed through the transmission teeth.
In the temporary grounding device safe in use, the second grounding lock further comprises a second lock cylinder matched with the unlocking piece and a second cam limiting the first cam, and the second cam is mounted on the second lock cylinder and rotates along with the second lock cylinder.
In the temporary grounding device safe in use, the wiring assemblies are provided with a plurality of wiring locks, each wiring assembly is correspondingly provided with a wiring lock, and the wiring locks are sequentially locked through the matching pieces.
The invention has the beneficial effects that:
according to the invention, the interlocking component limits the operation flow of the constructor, so that the constructor can obtain the unlocking component to realize the grounding of the grounding component by cutting off the power supply firstly, and can obtain the matching component to realize the connection between the wiring component and the conductor only after the grounding of the grounding component is finished, thereby preventing the constructor from forgetting to cut off the power supply, forgetting to perform grounding operation on the conductor or reversing the installation flow of the temporary grounding device, namely preventing safety accidents caused by misoperation of the constructor and ensuring the life health safety of the constructor.
The features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
Drawings
The invention is further described with reference to the accompanying drawings and the detailed description below:
FIG. 1 is a schematic view of a temporary grounding device of the present invention that is safe in use;
FIG. 2 is a first perspective view of the grounding assembly;
FIG. 3 is a second perspective view of the grounding assembly;
FIG. 4 is a schematic view of the grounding assembly in an unlocked grounding line state;
FIG. 5 is a schematic view of the grounding assembly in a locked grounding state.
Reference numerals:
100. a first ground lock; 110. a first lock cylinder; 120. a first cam; 130. a transmission gear;
200. a mating member;
300. a wiring lock;
400. a clamping mechanism; 410. a fixed head; 420. a compression head; 421. a housing; 422. a through hole; 423. a slide rail; 430. a push rod;
510. a gear; 520. a pusher member; 530. a slider; 531. limiting teeth; 540. an elastic reset member;
600. a second ground lock; 610. a second lock cylinder; 620. a second cam; 630. unlocking the lock;
700. a conductor.
Detailed Description
The invention provides a temporary grounding device safe to use, which comprises a grounding assembly for connecting a grounding wire and a wiring assembly for connecting a conductor, wherein the wiring assembly is electrically connected with the grounding assembly, the temporary grounding device also comprises an interlocking assembly, the interlocking assembly comprises a first grounding lock arranged on the grounding assembly, a matching piece and a wiring lock arranged on the wiring assembly, the matching piece drives the first grounding lock to lock the grounding assembly and the grounding wire, and in the locked state of the first grounding lock, the matching piece can be separated from the first grounding lock and drives the wiring lock to lock the wiring assembly and the conductor. According to the invention, the interlocking component limits the operation flow of the constructor, so that the constructor can obtain the unlocking component to realize the grounding of the grounding component by cutting off the power supply firstly, and can obtain the matching component to realize the connection between the wiring component and the conductor only after the grounding of the grounding component is finished, thereby preventing the constructor from forgetting to cut off the power supply, forgetting to perform grounding operation on the conductor or reversing the installation flow of the temporary grounding device, namely preventing safety accidents caused by misoperation of the constructor and ensuring the life health safety of the constructor.
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example (b):
a temporary grounding device safe in use is shown in figures 1 to 5 and comprises a grounding assembly, at least one wiring assembly and an interlocking assembly, wherein the grounding assembly is electrically connected with each wiring assembly through a conducting wire, when an electric power system is constructed and maintained, the grounding assembly is connected with a grounding wire, and the wiring assembly is connected with a conductor 700, so that the conductor 700 is grounded through the temporary grounding device, and the conductor 700 is prevented from being electrified to cause electric shock to constructors.
The interlocking assembly comprises a first grounding lock 100, a second grounding lock 600, a fitting piece 200 and a wiring lock 300, wherein the first grounding lock 100, the second grounding lock 600 and the fitting piece 200 are arranged on the grounding assembly, the wiring lock 300 is correspondingly arranged on each wiring assembly, and the wiring lock 300 is sequentially locked through the fitting piece 200. The mating member 200 is a key commonly used for the first ground lock 100 and the wire connection lock 300, the first ground lock 100 is disposed on the ground assembly, the mating member 200 locks the ground assembly and the ground wire by the first ground lock 100 when the ground assembly clamps the ground wire, preventing the ground assembly and the ground wire from being separated, and the mating member 200 can be disengaged from the first ground lock 100 and drive the wire connection lock 300 to lock the wire connection assembly and the conductor 700 in the locked state of the first ground lock 100. Second ground connection lock 600 is located first ground connection lock 100 one side for the first ground connection of locking is locked 100, and second ground connection lock 600 is including locating the unlocking piece 630 in locating the cubical switchboard, and under the power off state in the cubical switchboard, unlocking piece 630 can break away from in order to unblock second ground connection lock 600 from the cubical switchboard.
The grounding assembly in this embodiment comprises a clamping mechanism 400 for clamping the grounding wire and a limiting mechanism, the first grounding lock 100 locks the clamping mechanism 400 through the limiting mechanism, and the clamping mechanism 400 comprises a fixing head 410, a pressing head 420 and a push rod 430 with an end rotatably connected with the pressing head 420. Fixed head 410 includes clamping end and stiff end, and clamping end links to each other with the stiff end and is the "U" type of horizontal setting, and clamping head 420 is located between clamping end and the stiff end, is equipped with the screw hole on the stiff end, and the one end of push rod 430 is equipped with the external screw thread, and the tip of push rod 430 passes the screw hole in order to promote clamping head 420 to clamping end direction, and push rod 430 passes through screw hole and stiff end threaded connection.
The pressing head 420 comprises a shell 421, the shell 421 comprises a lower shell and an upper shell, the upper shell covers the lower shell, a cavity for accommodating the limiting mechanism is formed between the upper shell and the lower shell, a through hole 422 is formed in the lower shell, the end of the push rod 430 penetrates through the through hole 422 to stretch into the cavity and abut against the upper shell, when the push rod 430 rotates on the fixed end, the push rod 430 moves towards the direction of the clamping end or away from the direction of the clamping end, the push rod 430 drives the pressing head 420 to move towards the direction of the clamping end or away from the direction of the clamping end, so as to adjust the distance between the pressing head 420 and the clamping end, and the distance between the pressing head 420 and the clamping end can clamp the grounding wire.
The limiting mechanism is arranged in the cavity and comprises a gear 510, a pushing piece 520, a sliding block 530 arranged between the gear 510 and the pushing piece 520 and an elastic reset piece 540 for pushing the sliding block 530 to be far away from the gear 510, the pushing piece 520 is rotatably connected in the shell 421, the gear 510 is sleeved and fixed on the push rod 430 and rotates together with the push rod 430, one side, facing the gear 510, of the sliding block 530 is provided with a limiting tooth 531 meshed with the gear 510, the pushing piece 520 comprises a pushing part and a resetting part, as shown in fig. 4, when the resetting part faces the sliding block 530, the resetting part avoids the sliding block 530, the sliding block 530 is far away from the gear 510 under the elastic force action of the elastic reset key, and the gear 510 and the push rod; as shown in fig. 5, when it is required to fix the distance between the pressing head 420 and the clamping end, the pushing member 520 is driven by the first grounding lock 100 to rotate, and along with the rotation of the pushing member 520, the pushing portion of the pushing member 520 abuts against the sliding block 530 and pushes the sliding block 530 towards the gear 510, so as to press the elastic reset member 540, until the limit tooth 531 on the sliding block 530 is engaged with the gear 510, so as to prevent the gear 510 from continuing to rotate, so as to position the pressing head 420, and the pushing member 520 swings under the drive of the first grounding lock 100, so that the pushing portion and the reset portion alternately act on the sliding block 530, so as to limit and reset the gear 510 by the sliding block 530.
In the embodiment, a sliding rail 423 is arranged in the casing 421, the sliding block 530 and the reset element are both arranged in the sliding rail 423, and the sliding rail 423 limits the sliding block 530, so that the sliding block 530 can only move along the sliding rail 423, that is, the sliding block 530 is prevented from being separated from between the pushing element 520 and the gear 510, and the limiting effect of the sliding block 530 is ensured. Preferably, the sliding block 530 includes a sliding portion and an engaging portion, the sliding portion and the engaging portion are connected through an elastic member, the limiting tooth 531 is disposed at one end of the engaging portion facing the gear 510, the elastic member is disposed at the other end of the engaging portion, and the engaging portion can complement the engaging strength through the elastic member, thereby providing a better limiting effect for the gear 510.
In this embodiment, the first ground lock 100 includes a first lock cylinder 110 and a first cam 120 rotating with the first lock cylinder 110, the first cam 120 and the pusher 520 are engaged with each other through the gear teeth 130, the second ground lock 600 further includes a second lock cylinder 610 engaged with the unlocking member 630 and a second cam 620 restraining the first cam 120, and the second cam 620 is mounted on the second lock cylinder 610 and rotates with the second lock cylinder 610.
When the power system normally operates, the power source in the switch cabinet is in an open state, the unlocking member 630 is located in the switch cabinet and cannot be obtained by a constructor, as shown in fig. 4, the limiting mechanism does not limit the clamping mechanism 400, the second grounding lock 600 is in a locked state, that is, the second cam 620 of the second grounding lock 600 limits the first cam 120 of the first grounding lock 100, at this time, the fitting member 200 is inserted in the first lock core 110 but cannot drive the first lock core 110 and the first cam 120 to rotate, that is, the fitting member 200 cannot adjust the distance between the fixing head 410 and the pressing head 420, and the fitting member 200 cannot be separated from the first lock core 110 at this time. At the same time, the terminal assembly is also in a locked state, i.e., the terminal assembly cannot be connected to the conductor 700.
When the power system needs to be constructed and maintained, the operation steps are as follows:
1. a constructor firstly cuts off a power supply in the switch cabinet to obtain an unlocking piece 630 in the switch cabinet;
2. rotating the push rod 430 so that the pressing head 420 and the fixing head 410 clamp the ground wire;
3. the unlocking piece 630 is inserted into the second lock cylinder 610, and the unlocking piece 630 drives the second cam 620 to rotate through the second lock cylinder 610, so that the second cam 620 rotates to a position avoiding the first cam 120 and does not prevent the first cam 120 from rotating any more;
4. the fitting piece 200 inserted into the first lock cylinder 110 is rotated, the fitting piece 200 drives the first lock cylinder 110 and the first cam 120 to rotate, the rotated first cam 120 drives the pushing piece 520 to rotate through the transmission teeth 130, so that the pushing part of the pushing piece 520 abuts against the sliding block 530 and pushes the sliding block 530 towards the gear 510, the elastic reset piece 540 is extruded until the limiting teeth 531 on the sliding block 530 are meshed with the gear 510 to prevent the gear 510 from rotating continuously, so that the positioning of the pressing head 420 is realized, that is, the connection between the grounding assembly and the grounding wire is realized, at this time, the first grounding lock 100 is in a locked state, and the fitting piece 200 can be separated from the first lock cylinder 110;
5. the mating members 200 removed from the first cylinder 110 are sequentially inserted into the wire lock 300 so that the wire lock 300 can be sequentially connected with the conductors 700.
After the power system is constructed and maintained, the constructor sequentially removes the wiring assembly and the grounding assembly connected with the conductor 700 through the fitting piece 200, and puts the unlocking piece 630 back into the switch cabinet again, so that the power supply of the switch cabinet can be turned on again.
At present, accidents caused by the irregular use of the temporary grounding device occur occasionally, and the electrical misoperation accidents related to the temporary grounding device account for 60% of the total number of misoperation accidents. Because of this reason, when electric power system was under construction and was maintained, need earlier close the power in the cubical switchboard, cut off electric power system's power, then through interim earthing device with conductor 700 ground connection, prevent that the staff from electrocuting because conductor 700, the back that finishes overhauls, needs interim earthing device to demolish, closes a floodgate again in order to open the power in the cubical switchboard. However, due to the difference between the working experience and the safety consciousness of the workers, the workers do not carry out the installation of the temporary grounding device according to the safe operation flow, the safety regulation is not executed in place, and accidents are caused.
According to the invention, the operation flow of the constructor is limited by the interlocking component, so that the constructor can obtain the unlocking component 630 only by cutting off the power supply to realize the grounding of the grounding component, and can obtain the matching component 200 only by finishing the grounding of the grounding component to realize the connection of the wiring component and the conductor 700, thereby preventing the constructor from forgetting to cut off the power supply, forgetting to perform grounding operation on the conductor 700 or reversing the installation flow of a temporary grounding device, namely preventing safety accidents caused by the misoperation of the constructor and ensuring the life health and safety of the constructor.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. A temporary grounding device safe in use, comprising a grounding assembly for connecting a grounding wire and a wiring assembly for connecting a conductor, the wiring assembly being electrically connected to the grounding assembly, characterized in that: still include the interlocking subassembly, the interlocking subassembly is including locating first ground connection lock on the ground connection subassembly, fitting piece and locating the wiring lock on the wiring subassembly, the fitting piece drives first ground connection lock closure ground connection subassembly and earth connection, and under first ground connection lock closure state, the fitting piece can break away from first ground connection lock to drive wiring lock closure wiring subassembly and conductor.
2. A safe-to-use temporary grounding device as claimed in claim 1, wherein: interlocking assembly is still including locating the second ground connection lock that is used for the first ground connection of locking to lock on the ground connection assembly, second ground connection lock is including locating the deblocking piece in the cubical switchboard, under the power off state in the cubical switchboard, the deblocking piece can break away from in order to unblock second ground connection to lock from the cubical switchboard.
3. A safe-to-use temporary grounding device as claimed in claim 2, wherein: the grounding assembly comprises a clamping mechanism and a limiting mechanism for clamping a grounding wire, and the first grounding lock locks the clamping mechanism through the limiting mechanism.
4. A safe-to-use temporary grounding device as claimed in claim 3, wherein: the clamping mechanism comprises a fixed head, a pressing head and a push rod, the end part of the push rod is rotatably connected with the pressing head, the push rod is in threaded connection with the fixed head, and the pressing head is pushed by the rotating push rod to clamp the grounding wire together with the fixed head.
5. A temporary grounding device safe in use according to claim 4, wherein: the compressing head comprises a shell, the limiting mechanism is arranged in the shell, a through hole is formed in the bottom wall of the shell, and the end portion of the push rod penetrates through the through hole to stretch into the shell and abut against the top wall of the shell.
6. A temporary grounding device safe in use according to claim 5, wherein: the limiting mechanism comprises a gear fixed at the end of the push rod, a pushing piece, a sliding block arranged between the gear and the pushing piece and an elastic reset piece pushing the sliding block to be away from the gear, limiting teeth meshed with the gear are arranged on one side, facing the gear, of the sliding block, the pushing piece pushes the sliding block to move towards the gear and extrudes the elastic reset piece, and therefore the limiting teeth are meshed with the gear to prevent the push rod from rotating.
7. A temporary grounding device safe in use according to claim 6, wherein: the casing is equipped with the slide rail in, the slider all locates in the slide rail with the piece that resets.
8. A temporary grounding device safe in use according to claim 6, wherein: the pushing piece is rotationally connected in the shell, the first grounding lock comprises a first lock cylinder and a first cam rotating along with the first lock cylinder, and the cam and the pushing piece are meshed through transmission teeth.
9. A safe-to-use temporary grounding device as claimed in claim 8, wherein: the second grounding lock further comprises a second lock cylinder matched with the unlocking piece and a second cam limiting the first cam, and the second cam is installed on the second lock cylinder and rotates along with the second lock cylinder.
10. A safe-to-use temporary grounding device as claimed in claim 1, wherein: the wiring subassembly is equipped with a plurality ofly, all corresponds on every wiring subassembly and is provided with the wiring lock, the wiring lock locks in proper order through the fitting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481943.6A CN111817034B (en) | 2020-05-28 | 2020-05-28 | Temporary grounding device safe to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481943.6A CN111817034B (en) | 2020-05-28 | 2020-05-28 | Temporary grounding device safe to use |
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| Publication Number | Publication Date |
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| CN111817034A true CN111817034A (en) | 2020-10-23 |
| CN111817034B CN111817034B (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010481943.6A Active CN111817034B (en) | 2020-05-28 | 2020-05-28 | Temporary grounding device safe to use |
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| CN (1) | CN111817034B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258315A (en) * | 2021-04-08 | 2021-08-13 | 国网浙江桐乡市供电有限公司 | Earthing device for JP cabinet |
| CN114421350A (en) * | 2022-03-09 | 2022-04-29 | 广东吉熙安电缆附件有限公司 | Grounding device for medium-voltage C-GIS switch cabinet and use method thereof |
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| CN101752737A (en) * | 2008-12-03 | 2010-06-23 | 江苏省电力公司镇江供电公司 | Grounding lockset |
| CN202905991U (en) * | 2012-10-19 | 2013-04-24 | 沧州供电公司 | Safe operation electric ground wire |
| CN208336532U (en) * | 2018-04-09 | 2019-01-04 | 广州金创安科技有限公司 | The temporary earthing device for unlocking mechanism and its composition of linking |
| CN210350147U (en) * | 2019-10-22 | 2020-04-17 | 国网江苏省电力有限公司徐州供电分公司 | Novel grounding wire capable of preventing misoperation |
| CN210443678U (en) * | 2019-09-20 | 2020-05-01 | 广州金创安科技有限公司 | Grounding wire clamp with locking function |
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| CN101752737A (en) * | 2008-12-03 | 2010-06-23 | 江苏省电力公司镇江供电公司 | Grounding lockset |
| CN202905991U (en) * | 2012-10-19 | 2013-04-24 | 沧州供电公司 | Safe operation electric ground wire |
| CN208336532U (en) * | 2018-04-09 | 2019-01-04 | 广州金创安科技有限公司 | The temporary earthing device for unlocking mechanism and its composition of linking |
| CN210443678U (en) * | 2019-09-20 | 2020-05-01 | 广州金创安科技有限公司 | Grounding wire clamp with locking function |
| CN210350147U (en) * | 2019-10-22 | 2020-04-17 | 国网江苏省电力有限公司徐州供电分公司 | Novel grounding wire capable of preventing misoperation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113258315A (en) * | 2021-04-08 | 2021-08-13 | 国网浙江桐乡市供电有限公司 | Earthing device for JP cabinet |
| CN114421350A (en) * | 2022-03-09 | 2022-04-29 | 广东吉熙安电缆附件有限公司 | Grounding device for medium-voltage C-GIS switch cabinet and use method thereof |
| CN114421350B (en) * | 2022-03-09 | 2022-12-23 | 广东吉熙安电缆附件有限公司 | Grounding device for medium-voltage C-GIS switch cabinet and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111817034B (en) | 2022-02-22 |
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