CN112858776B - Special equipment for uninterrupted replacement of ammeter in electric energy metering box - Google Patents
Special equipment for uninterrupted replacement of ammeter in electric energy metering box Download PDFInfo
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- CN112858776B CN112858776B CN202110024721.6A CN202110024721A CN112858776B CN 112858776 B CN112858776 B CN 112858776B CN 202110024721 A CN202110024721 A CN 202110024721A CN 112858776 B CN112858776 B CN 112858776B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/065—Details of electronic electricity meters related to mechanical aspects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention relates to the field of power equipment, in particular to special equipment for replacing an ammeter in an electric energy metering box without power outage. The utility model provides a professional equipment to ammeter uninterrupted power supply change in electric energy metering box, includes short circuit subassembly and operation subassembly. The invention can replace the ammeter under the condition of no power interruption, does not cause troubles to users, does not influence the electricity utilization experience of the users, does not increase the cost of manpower and material resources, and does not cause negative influence to power supply units.
Description
Technical Field
The invention relates to the field of power equipment, in particular to special equipment for replacing an ammeter in an electric energy metering box without power outage.
Background
Along with the continuous improvement of people's standard of living, the application range of the electric energy is constantly enlarged, and the acceleration of smart power grids process simultaneously, the implementation of rural power grids transformation project for the use amount of electric energy meter obviously rises, and the installation of electric energy meter, change work appear frequently.
The current ammeter not only causes troubles for users and influences the power consumption experience of the users due to the fact that a power supply is required to be cut off when being replaced, but also increases the cost of manpower and material resources and easily causes negative effects for power supply units.
For example, Chinese patent publication numbers are: CN102981030A, a household intelligent electric meter announced in 2013, 3, 20 and comprising a box body, an electric meter arranged in the box body, a master controller arranged in the electric meter, a circuit breaker and a display screen arranged on the electric meter, wherein the master controller consists of an electric quantity acquisition module, an A/D converter, a control circuit, an MCU, a data communication module and a power supply module; the principle of the invention is as follows: the power consumption is monitored in real time through the power acquisition module, the power consumption is transmitted to the MCU through the A/D converter, data are transmitted to the household computer terminal through the display screen display and data communication module, the circuit breaker is monitored by the control circuit, the state of the circuit breaker is displayed through the household power terminal, and when the circuit breaker is disconnected, the circuit breaker can be remotely controlled to be closed again through the household power terminal; although it has the charges of electricity inquiry in real time, circuit breaker remote control, easy and simple to handle's advantage, this ammeter need the power cut-off when changing, has not only caused the trouble for the user, influences user's power consumption and has experienced, has increased manpower and materials cost moreover, causes negative effects for power supply unit easily.
Disclosure of Invention
The invention mainly aims at the problems that the power supply is required to be cut off when the conventional ammeter is replaced, troubles are caused to a user, the power consumption experience of the user is influenced, the cost of manpower and material resources is increased, and negative influences are easily caused to a power supply unit.
The purpose of the invention is mainly realized by the following scheme: a special device for replacing an ammeter in an electric energy metering box without power outage comprises a short-circuit component and an operating component, wherein the operating component comprises an operating shell, a sliding groove is formed in the operating shell, a pressure groove is formed in the operating shell and corresponds to the sliding groove, a pressure rod is connected in the pressure groove in a sliding mode, the left side and the right side of the sliding groove correspond to the pressure rod and are connected with cross rods in a sliding mode, a reset spring is connected between the two cross rods, translation grooves are correspondingly formed in the two ends, located in the sliding groove, of the operating shell, vertical rods are arranged in the translation grooves, one ends of the vertical rods are connected with the cross rods, the other ends of the vertical rods extend out of the operating shell and are provided with clamping jaws, clamping grooves are formed in the clamping jaws, the short-circuit component comprises a short-circuit shell, an adjusting cavity is formed in the short-circuit shell, two claw inlets are respectively formed in one side of the short-circuit shell and corresponds to the two clamping jaws, be provided with between two and advance the claw mouth be located the short circuit casing on and with draw-in groove matched with joint wall, the opposite side of short circuit casing be provided with two short interfaces, the regulation intracavity correspond every short interface and be provided with two short pins respectively, the one end that is located of two corresponding short pins is adjusted the intracavity and is rotated and connect on same leading electrical pillar, the short pin on all rotate and be connected with the regulation pole, the regulation pole on two corresponding short pins is connected in same backup pad, the backup pad be connected with through the connecting rod with adjust chamber sliding connection and with draw-in groove matched with regulating plate. The short circuit component can carry out short circuit on the electric meter, a worker can control the short circuit component through the operation component, a sliding groove is arranged in the operation shell, a pressing groove is arranged in the operation shell and corresponds to the sliding groove, the pressing groove is perpendicular to the sliding groove, the pressing groove is correspondingly arranged in the middle of the sliding groove, a pressing rod is connected in the pressing groove in a sliding mode, the left side and the right side of the sliding groove correspond to the pressing rod and are connected with a cross rod in a sliding mode, a reset spring is connected between the two cross rods, two ends, located in the sliding groove, in the operation shell are correspondingly provided with translation grooves, vertical rods are arranged in the translation grooves, the width of the translation grooves is larger than the thickness of the vertical rods, one ends of the vertical rods are connected with the cross rods, the other ends of the vertical rods extend out of the operation shell and are provided with clamping claws, clamping grooves are arranged on the clamping claws, the pressing rods can drive the cross rods to move in the sliding grooves, the cross rods can drive the connected vertical rods to move in the translation grooves when moving, the vertical rod drives the clamping jaws to move simultaneously, the reset spring can drive the two cross rods to reset when the pressure rod is not subjected to external force, the short circuit assembly comprises a short circuit shell, an adjusting cavity is arranged in the short circuit shell, two claw inlet openings are respectively formed in one side of the short circuit shell corresponding to the two clamping jaws, a clamping wall which is positioned on the short circuit shell and matched with the clamping groove is arranged between the two claw inlet openings, two short connectors are arranged on the other side of the short circuit shell, two short connecting pins are respectively arranged in the adjusting cavity corresponding to each short connecting opening, the number of the short connecting pins in one short circuit shell is four, one end of each two corresponding short connecting pins, which is positioned in the adjusting cavity, is rotatably connected to the same conductive post, the conductive post is fixed in the short circuit shell, the four short connecting pins are respectively and electrically connected to the inlet wire and the outlet wire of a live wire and a zero wire in pairs, so that current does not pass through an electric meter, and short circuit operation can be carried out on the electric meter, the adjusting rods are rotatably connected to the short pins, the adjusting rods on the two corresponding short pins are connected to the same supporting plate, the number of the supporting plates in one short-circuit shell is two, the supporting plates are connected with adjusting plates which are connected with the adjusting cavities in a sliding mode and matched with the clamping grooves through connecting rods, the adjusting plates can drive the supporting plates to move through the connecting rods when moving, so that when the supporting plates drive the adjusting rods to move, the inclination angles of the two corresponding short pins can be adjusted through the movement of the two corresponding adjusting rods, the connection degree between the short pins and a live line or a zero line is convenient to adjust, a certain friction force exists between the adjusting plates and the side walls of the adjusting cavities, and the adjusting plates can be prevented from moving randomly; when the operation of changing the electricity meter without power failure is carried out, a worker firstly moves the short-circuit device, so that four short-circuit pins on the short-circuit device are respectively and electrically connected with the incoming line end and the outgoing line end of a live line and a zero line, the electricity meter is short-circuited, then the worker can adjust the contact degree between the short-circuit pins and the live line or the zero line through the operation assembly, namely, the worker firstly presses the pressure rod, so that the pressure rod is abutted against two cross rods, the cross rods drive the vertical rods to move simultaneously, the vertical rods drive the clamping jaws to move to the positions corresponding to the clamping jaw openings, then the worker moves the operation shell, so that the two clamping jaws enter the corresponding clamping jaw openings, when the clamping jaws move to the positions corresponding to the adjusting plate, the worker loosens the pressure rod, the cross rods on the two sides drive the vertical rods and the clamping jaws to reset under the action of the reset springs, so that the adjusting plate can be clamped into the clamping groove when the clamping jaws move, at the moment, the worker can drive the adjusting rod to move by moving the operating shell, so that the inclination of the short pin is adjusted, the contact degree of the short pin and the live wire or the zero wire is adjusted, the stability of the electric meter is high when the electric meter is short-circuited, and the safety of the worker in changing the electric meter is improved; when the staff will take off the short circuit subassembly, the staff can drive whole short circuit subassembly removal safely in going into the joint wall with two jack catchs card, and an operating assembly can cooperate the short circuit subassembly of a plurality of the same specifications to use, simple operation.
Preferably, the pressure lever is provided with a driving guide surface corresponding to the cross rod, and the cross rod is provided with a driven guide surface matched with the driving guide surface. The pressure bar is provided with a driving guide surface corresponding to the cross bar, the cross bar is provided with a driven guide surface matched with the driving guide surface, and the driving guide surface and the driven guide surface are arranged so that the cross bar can move after being pushed by the pressure bar.
Preferably, the driving guide surface and the driven guide surface are both arc-shaped surfaces. The driving guide surface and the driven guide surface are arc surfaces, so that the stability of the pressure rod when the pressure rod is abutted to the cross rod is good, and the pressure rod cannot be clamped.
Preferably, an operating handle is arranged at one end of the pressure lever, which is far away from the sliding groove. The one end of the depression bar of keeping away from the spout is provided with operating handle, makes things convenient for the staff to drive the depression bar through operating handle and removes.
Preferably, the short-circuit pin is made of a galvanized copper material. The short pin is made of galvanized copper and has better conductivity.
Preferably, the operation shell and the short-circuit shell are both made of sheet molding compound. The operation shell and the short circuit shell are both made of sheet molding compound, have the performances of heat resistance, flame retardance, good mechanical strength and the like, and have high insulativity, so that the safety of workers in using equipment is further improved.
Preferably, the short circuit shell is provided with a transparent part for observing the internal condition corresponding to the clamping wall and the adjusting plate. The transparent part used for observing the internal condition is arranged on the short circuit shell corresponding to the clamping wall and the adjusting plate, the transparent part is convenient for workers to observe the positions of the adjusting plate and the clamping wall in the short circuit shell, and the clamping jaws are conveniently clamped into the adjusting plate or the clamping wall, so that the operation is convenient.
Preferably, the cross section of the pressure groove is rectangular, and the cross section of the pressure rod is also rectangular matched with the pressure groove. The cross section of indent is the rectangle, and the cross section of depression bar also is the rectangle with indent matched with to make the depression bar can only remove along the length direction of indent and can not deflect, stability is good.
Therefore, the special equipment for replacing the electric meter in the electric energy metering box without power outage has the following advantages: the electric meter replacing device is simple to operate, the electric meter can be replaced under the condition of no power failure, troubles are not caused to users, the electricity utilization experience of the users is not influenced, the cost of manpower and material resources is not increased, negative influences are not caused to a power supply unit, the contact degree of the short pin and the live wire or the zero wire can be adjusted during operation, the stability of the electric meter is high when the electric meter is short-circuited, and the safety of workers during electric meter replacement is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Figure 2 is a cross-sectional view of a shorting assembly according to the present invention.
Fig. 3 is a cross-sectional view of the operating assembly of the present invention.
Illustration of the drawings: 1-operating component, 2-shorting component, 3-transparent part, 4-shorting pin, 5-shorting shell, 6-adjusting cavity, 7-clamping wall, 8-adjusting plate, 9-connecting rod, 10-supporting plate, 11-adjusting rod, 12-conductive column, 13-short interface, 14-operating shell, 15-operating handle, 16-pressing groove, 17-pressing rod, 18-sliding groove, 19-reset spring, 20-cross rod, 21-vertical rod, 22-clamping jaw, 23-clamping groove, 24-driving guide surface, 25-driven guide surface, 26-translation groove, and 27-clamping jaw opening.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1, 2 and 3, a special device for replacing an electric meter in an electric energy metering box without power outage comprises a short-circuit component 2 and an operation component 1, wherein the short-circuit component 2 can perform short-circuit on the electric meter, a worker can control the short-circuit component 2 through the operation component 1, a sliding groove 18 is arranged in an operation shell 14, a pressure groove 16 is arranged in the operation shell 14 corresponding to the sliding groove 18, the pressure groove 16 is perpendicular to the sliding groove 18, the pressure groove 16 is correspondingly arranged at the middle position of the sliding groove 18, a pressure rod 17 is connected in the pressure groove 16 in a sliding manner, an operation handle 15 is arranged at one end of the pressure rod 17 far away from the sliding groove 18, the worker can conveniently drive the pressure rod 17 to move through the operation handle 15, the left side and the right side of the sliding groove 18 both correspond to the pressure rod 17 and are connected with cross rods 20 in a sliding manner, a reset spring 19 is connected between the two cross rods 20, translation grooves 26 are correspondingly arranged at two ends of the sliding groove 18 in the operation shell 14, a vertical rod 21 is arranged in the translation groove 26, the width of the translation groove 26 is larger than the thickness of the vertical rod 21, one end of the vertical rod 21 is connected with the cross rod 20, the other end of the vertical rod 21 extends out of the operation shell 14 and is provided with a clamping jaw 22, the clamping jaw 22 is provided with a clamping groove 23, when the pressure rod 17 moves in the pressure groove 16 and abuts against the cross rod 20, the cross rod 20 can be driven to move in the sliding groove 18, the cross rod 20 can drive the connected vertical rod 21 to move in the translation groove 26 simultaneously when moving, the vertical rod 21 drives the clamping jaws 22 to move simultaneously, the reset spring 19 can drive the two cross rods 20 to reset when the pressure rod 17 is not subjected to external force, the short-circuit assembly 2 comprises a short-circuit shell 5, an adjusting cavity 6 is arranged in the short-circuit shell 5, one side of the short circuit shell 5 is respectively provided with two clamping jaw openings 27 corresponding to the two clamping jaws 22, a clamping wall 7 which is arranged on the short circuit shell 5 and is matched with the clamping groove 23 is arranged between the two clamping jaw openings 27, the other side of the short circuit shell 5 is provided with two short interfaces 13, two short connection pins 4 are respectively arranged in the adjusting cavity 6 corresponding to each short interface 13, the number of the short connection pins 4 in one short circuit shell 5 is four, one end of each of the two corresponding short connection pins 4 in the adjusting cavity 6 is rotatably connected to the same conductive column 12, the conductive columns 12 are fixed in the short circuit shell 5, the four short connection pins 4 are respectively and electrically connected to the incoming line end and the outgoing line end of a live line and a zero line in pairs, so that current does not pass through the ammeter, short circuit operation can be carried out on the ammeter, the short connection pins 4 are respectively and rotatably connected with adjusting rods 11, the adjusting rods 11 on the corresponding two short connection pins 4 are connected to the same supporting plate 10, the number of the supporting plates 10 in one short circuit shell 5 is two, the supporting plates 10 are connected with adjusting plates 8 which are slidably connected with the adjusting cavities 6 and are matched with the clamping grooves 23 through connecting rods 9, the adjusting plate 8 can drive the supporting plate 10 to move through the connecting rod 9 when moving, so that when the supporting plate 10 drives the adjusting rods 11 to move, the inclination angles of the two corresponding short connecting pins 4 can be adjusted through the movement of the two corresponding adjusting rods 11, the connection degree between the short connecting pins 4 and a live wire or a zero wire is convenient to adjust, and a certain friction force is formed between the adjusting plate 8 and the side wall of the adjusting cavity 6, so that the adjusting plate 8 can be prevented from moving randomly; specifically, when the operation of switching the electric meter without power failure is performed, a worker firstly moves the short-circuit device, so that the four short pins 4 on the short-circuit device are respectively and electrically connected with the incoming line and the outgoing line of the live line and the zero line, thereby the electric meter is short-circuited, then the worker can adjust the contact degree between the short pins 4 and the live line or the zero line through the operation assembly 1, namely, the worker firstly presses the pressure lever 17, so that the pressure lever 17 abuts against the two cross rods 20, thereby the cross rods 20 drive the vertical rods 21 to simultaneously move, the vertical rods 21 drive the clamping jaws 22 to move to the positions corresponding to the clamping jaw openings 27, then the worker moves the operation housing 14, so that the two clamping jaws 22 enter the corresponding clamping jaw openings 27, when the clamping jaws 22 move to the positions corresponding to the adjustment plate 8, the worker loosens the pressure lever 17, so that the cross rods 20 on the two sides drive the vertical rods 21 and the clamping jaws 22 to reset under the action of the reset spring 19, therefore, the adjusting plate 8 is clamped into the clamping groove 23 when the clamping jaw 22 moves, and at the moment, a worker can drive the adjusting rod 11 to move by moving the operating shell 14, so that the inclination of the short pin 4 is adjusted, the contact degree of the short pin 4 and a live wire or a zero wire is adjusted, the stability of the electric meter is high when the electric meter is short-circuited, and the safety of the worker in switching the electric meter is improved; when the staff will take off short circuit subassembly 2, the staff can drive whole short circuit subassembly 2 safely and remove in going into joint wall 7 with two jack catchs 22 card, and short circuit subassembly 2 that an operating assembly 1 can cooperate a plurality of the same specifications uses simple operation.
The pressure lever 17 is provided with a driving guide surface 24 corresponding to the cross rod 20, the cross rod 20 is provided with a driven guide surface 25 matched with the driving guide surface 24, and the driving guide surface 24 and the driven guide surface 25 are arranged to facilitate the movement of the cross rod 20 after being pushed by the pressure lever 17; the driving guide surface 24 and the driven guide surface 25 are arc surfaces, so that the stability of the pressure lever 17 against the cross rod 20 is good, and the pressure lever cannot be clamped.
The short pins 4 are made of galvanized copper materials and have better conductivity; the operation shell 14 and the short circuit shell 5 are both made of sheet molding compound, and have the properties of heat resistance, flame retardance, good mechanical strength and the like, and high insulation, so that the safety of workers when using the equipment is further improved.
The transparent part 3 used for observing the internal conditions is arranged on the short circuit shell 5 corresponding to the clamping wall 7 and the adjusting plate 8, the position of the adjusting plate 8 and the clamping wall 7 in the short circuit shell 5 can be observed conveniently by workers due to the arrangement of the transparent part 3, and the clamping jaws 22 can be clamped into the adjusting plate 8 or the clamping wall 7 conveniently, so that the operation is facilitated.
The cross section of the pressure groove 16 is rectangular, and the cross section of the pressure rod 17 is also rectangular matched with the pressure groove 16, so that the pressure rod 17 can only move along the length direction of the pressure groove 16 and cannot deflect, and the stability is good.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A special device for uninterrupted replacement of an ammeter in an electric energy metering box is characterized by comprising a short-circuit component and an operating component, wherein the operating component comprises an operating shell, a sliding groove is formed in the operating shell, a pressure groove is formed in the operating shell and corresponds to the sliding groove, a pressure rod is connected in the pressure groove in a sliding manner, the left side and the right side of the sliding groove correspond to the pressure rod and are connected with cross rods in a sliding manner, a reset spring is connected between the two cross rods, translation grooves are correspondingly formed in the two ends of the sliding groove in the operating shell, vertical rods are arranged in the translation grooves, one ends of the vertical rods are connected with the cross rods, the other ends of the vertical rods extend out of the operating shell and are provided with clamping jaws, clamping grooves are formed in the clamping jaws, the short-circuit component comprises a short-circuit shell, and an adjusting cavity is formed in the short-circuit shell, one side of short circuit casing correspond two jack catchs and be provided with two and advance the claw mouth respectively, be provided with between two and be located the short circuit casing and with draw-in groove matched with joint wall, the opposite side of short circuit casing be provided with two short connectors, the regulation intracavity correspond every short connector and be provided with two short pins respectively, the one end that is located the regulation intracavity of two corresponding short pins is rotated and is connected on same leading electrical pillar, the short pin on all rotate and be connected with the regulation pole, the regulation pole on two corresponding short pins is connected in same backup pad, the backup pad be connected with through the connecting rod with adjust chamber sliding connection and with draw-in groove matched with regulating plate.
2. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 1, wherein the pressure lever is provided with a driving guide surface corresponding to the cross rod, and the cross rod is provided with a driven guide surface matched with the driving guide surface.
3. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 2, wherein the driving guide surface and the driven guide surface are both arc-shaped surfaces.
4. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 1, wherein an operating handle is arranged at one end, far away from the sliding groove, of the pressure lever.
5. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 1, 2, 3 or 4, wherein the short-circuit pin is made of galvanized copper.
6. The special equipment for uninterrupted replacement of the electric meter in the electric energy metering box is characterized in that the operation shell and the short-circuit shell are both made of sheet molding compound according to claim 1, 2, 3 or 4.
7. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 1, 2, 3 or 4, wherein a transparent portion for observing the internal condition is arranged on the short circuit shell corresponding to the clamping wall and the adjusting plate.
8. The special equipment for replacing the electric meter in the electric energy metering box without power outage as claimed in claim 1, 2, 3 or 4, wherein the cross section of the pressure groove is rectangular, and the cross section of the pressure rod is also rectangular matched with the pressure groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110024721.6A CN112858776B (en) | 2021-01-08 | 2021-01-08 | Special equipment for uninterrupted replacement of ammeter in electric energy metering box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110024721.6A CN112858776B (en) | 2021-01-08 | 2021-01-08 | Special equipment for uninterrupted replacement of ammeter in electric energy metering box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112858776A CN112858776A (en) | 2021-05-28 |
| CN112858776B true CN112858776B (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110024721.6A Active CN112858776B (en) | 2021-01-08 | 2021-01-08 | Special equipment for uninterrupted replacement of ammeter in electric energy metering box |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113899926A (en) * | 2021-09-24 | 2022-01-07 | 国网山东省电力公司烟台供电公司 | Short-time uninterrupted meter changing device and meter changing method thereof |
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| JP2006340456A (en) * | 2005-05-31 | 2006-12-14 | Tokyo Electric Power Co Inc:The | Short-circuiting/earthing device |
| JP2007192705A (en) * | 2006-01-20 | 2007-08-02 | Yokogawa Electric Corp | Measuring probe |
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2021
- 2021-01-08 CN CN202110024721.6A patent/CN112858776B/en active Active
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| JP2006340456A (en) * | 2005-05-31 | 2006-12-14 | Tokyo Electric Power Co Inc:The | Short-circuiting/earthing device |
| JP2007192705A (en) * | 2006-01-20 | 2007-08-02 | Yokogawa Electric Corp | Measuring probe |
| CN201623268U (en) * | 2010-04-07 | 2010-11-03 | 辽宁省电力有限公司锦州供电公司 | Transmission line tower grounding wire device and hooking tool thereof |
| CN103972674A (en) * | 2014-04-15 | 2014-08-06 | 广西大学 | Angle adjustable type wire end ground clamp |
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