CN107611640B - Cable grounding wire - Google Patents
Cable grounding wire Download PDFInfo
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- CN107611640B CN107611640B CN201710810941.5A CN201710810941A CN107611640B CN 107611640 B CN107611640 B CN 107611640B CN 201710810941 A CN201710810941 A CN 201710810941A CN 107611640 B CN107611640 B CN 107611640B
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- 230000006378 damage Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000013935 Electric injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
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Abstract
The invention discloses a cable grounding wire which comprises a grounding clamp main body, a rotary connector, a first insulating rod and a second insulating rod. The grounding clamp comprises a grounding clamp body and is characterized in that a positioning hole used for being sleeved at a cable connection part is formed in the grounding clamp body, a threaded hole is formed in the top end of the grounding clamp body, and the extending direction of the threaded hole is perpendicular to the extending direction of the positioning hole; the screwing piece is in threaded connection with the threaded hole, the bottom end of the screwing piece penetrates through the threaded hole and is positioned in the positioning hole, and the top end of the screwing piece is positioned outside the positioning hole; the connecting end of the first insulating rod is provided with a connecting structure for twisting the top end of the rotary connecting piece; the connecting end of the second insulating rod is hinged with the bottom end of the grounding clamp main body. The cable grounding wire can be directly sent into the switch cabinet through the grounding clamp main body when in use, and the second insulating rod is mainly located outside the switch cabinet, so that the operation requirement of a narrow space is met, a good angle is easily found to connect the cable grounding wire to a cable connection position, and the operation difficulty is small. And the grounding wire of the cable has high grounding reliability and is not easy to fall off.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a cable grounding wire.
Background
When working in the substation, the overhauling personnel needs to be in an overhauling state by the overhauling equipment, so that the grounding switch blade is required to be closed or the temporary grounding wire is required to be hung, and the effect of hanging the temporary grounding wire by the staff is mainly three: the first protection against induction electric injury, the second has obvious ground mark, and the third prevents sudden incoming call. However, how to hang the ground wire at the cable connections at the switch cabinet etc. in the substation has always plagued the service personnel.
In the prior art, an maintainer hangs a common ground wire by peeling off an insulating layer on the surface of a busbar, or hangs a common ground wire by utilizing a small contact area at a cable connection part. The bus bar refers to a copper bar or an aluminum bar which is connected with a total switch and a switch in each shunt circuit in an electric cabinet of a power supply system, and the surface of the bus bar is subjected to insulation treatment and mainly used as a lead.
In the prior art, the grounding wire has two types of connectors: the first is pulling type, as shown in fig. 1, when in use, the connector of the grounding wire is aligned with the lead to be pulled downwards for fixing, and the grounding wire is hung on the round lead and is in a flat zone; the second type is a rotary fixed type, as shown in fig. 2, when in use, the lead is sleeved into the groove of the connector, and then the handle is rotated to fix the lead, and the grounding wire is suitable for the busbar.
However, because the space in the switch cabinet is narrow, the busbar is insulated, and when the grounding wire is used, the grounding wire is difficult to find a good angle to hang, so that the operation is time-consuming, laborious and inconvenient. Moreover, the grounding wire is directly hung at the cable connection part, the contact surface is small and easy to fall off, the reliability is low, and the potential safety hazard exists greatly.
Therefore, how to design a cable grounding wire suitable for a small space, with small operation difficulty and high reliability is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
Therefore, the invention aims to provide the cable grounding wire which is suitable for the grounding requirement of a narrow space, has small operation difficulty and high reliability.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a cable grounding wire comprising:
the grounding clamp comprises a grounding clamp main body, wherein a positioning hole used for being sleeved at a cable connection part is formed in the grounding clamp main body, a threaded hole is formed in the top end of the grounding clamp main body, and the extending direction of the threaded hole is perpendicular to the extending direction of the positioning hole;
the bottom end of the screwing piece penetrates through the threaded hole and is positioned in the positioning hole, and the top end of the screwing piece is positioned outside the positioning hole;
the connecting end of the first insulating rod is provided with a connecting structure for twisting the top end of the screwing piece;
the connecting end of the second insulating rod is hinged with the bottom end of the grounding clamp main body.
Preferably, in the cable grounding wire, the connecting end of the second insulating rod is hinged with the bottom end of the grounding clip main body through a universal joint.
Preferably, in the cable grounding wire, the universal joint comprises a first transmission joint, a second transmission joint and a third transmission joint,
one end of the first transmission joint is fixedly connected with the bottom end of the grounding clamp main body, the other end of the first transmission joint is hinged with one end of the second transmission joint, and the second transmission joint can rotate around the first transmission joint in a first plane;
one end of the third transmission joint is fixedly connected with the connecting end of the second insulating rod, the other end of the third transmission joint is hinged with the other end of the second transmission joint, the third transmission joint can rotate around the second transmission joint in a second plane, and the second plane is perpendicular to the first plane.
Preferably, in the cable grounding wire, the top end of the screwing piece is a first bevel gear;
the connecting structure of the connecting end of the first insulating rod is a second bevel gear meshed with the first bevel gear;
the first bevel gear and the second bevel gear are sleeved in the shell.
Preferably, in the cable grounding wire, a first bolt extending into the positioning hole is arranged at the bottom end of the grounding clamp main body, a sliding rod is fixedly connected to the top end of the first bolt, and two ends of the sliding rod are respectively in sliding connection with two side edges of the grounding clamp main body.
Preferably, in the cable grounding wire, the screwing piece is a first bolt, the bottom end of the first bolt is fixedly connected with a sliding rod, and two ends of the sliding rod are respectively connected with two side edges of the grounding clamp main body in a sliding manner;
the connecting structure of the connecting end of the first insulating rod is a pawl matched with the top end nut of the first bolt.
Preferably, in the cable grounding wire, the screwing piece is a first bolt, the bottom end of the first bolt is fixedly connected with a sliding rod, and two ends of the sliding rod are respectively connected with two side edges of the grounding clamp main body in a sliding manner;
the connecting structure of the connecting end of the first insulating rod is a soft transmission shaft, and two ends of the soft transmission shaft are respectively and fixedly connected with the top end nut of the first bolt and the connecting end of the first insulating rod.
Preferably, in the cable grounding wire, a second bolt extending into the positioning hole is arranged at the bottom end of the grounding clamp main body.
Preferably, in the cable grounding wire, an operation end of the first insulating rod is provided with a first handle;
and/or the operating end of the second insulating rod is provided with a second handle.
Preferably, in the cable grounding wire, the grounding clip body is a square frame structure, and the positioning hole is a square hole.
According to the technical scheme, in the cable grounding wire, the second insulating rod is hinged with the grounding clamp main body, so that the grounding clamp main body can be directly sent into the switch cabinet when in use, and the second insulating rod is mainly positioned outside the switch cabinet, thereby meeting the operation requirement of a narrow space, being applicable to the switch cabinet with a narrow space, easily finding a good angle to connect the cable grounding wire to a cable connection position, and having small operation difficulty. Moreover, the screwing piece and the grounding clamp main body can clamp the cable connection part, so that the grounding reliability is high, and the grounding clamp is not easy to fall off.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a pull cable grounding wire in the background art;
FIG. 2 is a schematic view of a structure of a rotationally fixed cable grounding wire in the prior art;
fig. 3 is a left side view of a cable grounding wire according to a first embodiment of the present invention;
fig. 4 is a front view of a cable grounding wire according to a first embodiment of the present invention;
fig. 5 is a left side view of a cable ground wire according to a second embodiment of the present invention;
fig. 6 is a front view of a cable grounding wire according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a cable grounding wire according to a third embodiment of the present invention.
Wherein:
1-a first bevel gear, 2-a second bevel gear, 6-a grounding clip, 7-a universal joint, 8-a housing,
9-ratchet wrench head, 10-soft transmission shaft,
31-first insulating rod, 32-second insulating rod, 41-first handle, 42-second handle,
50-sliding rod, 51-first bolt, 52-second bolt, 61-locating hole, 62-threaded hole,
71-first transmission joint, 72-second transmission joint, 73-third transmission joint.
Detailed Description
The invention discloses a cable grounding wire which is suitable for the grounding requirement of a narrow space, and has the advantages of low operation difficulty and high reliability.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 3 to 7, fig. 3 is a left side view of a cable grounding wire according to a first embodiment of the present invention, fig. 4 is a front side view of a cable grounding wire according to a first embodiment of the present invention, fig. 5 is a left side view of a cable grounding wire according to a second embodiment of the present invention, fig. 6 is a front side view of a cable grounding wire according to a second embodiment of the present invention, and fig. 7 is a schematic structural diagram of a cable grounding wire according to a third embodiment of the present invention.
The cable grounding wire provided by the embodiment of the invention comprises a grounding clamp main body 6, a screwing piece (specifically, a connecting piece for connecting the first bevel gear 1, the first bolt 51 and the like with the grounding clamp main body 6 in a threaded manner as described below), a first insulating rod 31 and a second insulating rod 32.
Wherein:
the grounding clamp body 6 is provided with a positioning hole 61 for sleeving a cable connection part, the top end of the grounding clamp body 6 is provided with a threaded hole 62, and the extending direction (namely, the hole depth direction) of the threaded hole 62 is perpendicular to the extending direction (namely, the hole depth direction) of the positioning hole 61;
the screwing piece is in threaded connection with the threaded hole 62, the top end of the screwing piece is positioned outside the positioning hole 61, and the bottom end of the screwing piece passes through the threaded hole 62 and is positioned in the positioning hole 61 and is used for being matched with the grounding clamp main body 6 to clamp the cable connection part;
the connecting end of the first insulating rod 31 is provided with a connecting structure for twisting the top end of the screwing piece, and the connecting structure is used for clamping or loosening the cable connecting part through twisting the screwing piece;
the connecting end of the second insulating rod 32 is hinged to the bottom end of the grounding clip body 6 so as to reduce the occupied space near the cable connection point during operation.
When the cable grounding wire provided by the embodiment of the invention is used for grounding, the grounding wire is connected to the grounding clamp main body 6 to realize the grounding purpose. The positioning hole 61 of the grounding clamp body 6 is sleeved at the cable connection position to be grounded, the rotary connector is twisted through the first insulating rod 31, the rotary connector continues to extend into the positioning hole 61, and the cable connection position is clamped through the bottom end of the rotary connector and the grounding clamp body 6.
According to the technical scheme, in the cable grounding wire provided by the embodiment of the invention, the second insulating rod 32 is hinged with the grounding clamp main body 6, so that the grounding clamp main body 6 can be directly sent into the switch cabinet when in use, and the second insulating rod 32 is mainly positioned outside the switch cabinet, thereby meeting the operation requirement of a narrow space, being applicable to the switch cabinet with a narrow space, easily finding a good angle to connect the cable grounding wire to a cable connection position, and having small operation difficulty. Moreover, the screwing piece and the grounding clamp main body 6 can clamp the cable connection part, so that the grounding reliability is high, and the grounding clamp is not easy to fall off.
In order to further optimize the above technical solution, as shown in fig. 3 to 7, in the cable grounding wire provided in the embodiment of the present invention, the connection end of the second insulating rod 32 is hinged to the bottom end of the grounding clip main body 6 through the universal joint 7. Specifically, the universal joint 7 includes a first transmission joint 71, a second transmission joint 72, and a third transmission joint 73.
Wherein, one end of the first transmission joint 71 is fixedly connected with the bottom end of the grounding clip main body 6, and the other end is hinged with one end of the second transmission joint 72; one end of the third transmission link 73 is fixedly connected with the connecting end of the second insulating rod 32, and the other end is hinged with the other end of the second transmission link 72.
Thus, the second transmission link 72 is rotatable about the first transmission link 71 in a first plane and the third transmission link 73 is rotatable about the second transmission link 72 in a second plane, the second plane being perpendicular to the first plane. Referring to fig. 3 and fig. 4, the arrow in fig. 3 indicates the rotation direction of the second transmission link 72 around the first transmission link 71 (the plane in which the rotation direction is located is the first plane), and the arrow in fig. 4 indicates the rotation direction of the third transmission link 73 around the second transmission link 72 (the plane in which the rotation direction is located is the second plane), so that it is easy to know that the second plane and the first plane are perpendicular to each other. Thus, the second insulating rod 32 can move in multiple directions relative to the grounding clip body 6, so that the position of the grounding clip body 6 can be adjusted with a small space.
However, the specific structure of the universal joint 7 is not limited thereto, and may be provided in various manners, for example, a ball joint structure may be provided to realize the universal joint function, and those skilled in the art may be provided specifically according to actual situations, which is not particularly limited to the present invention.
Further, as shown in fig. 3 to 7, in the above cable ground wire, the operation end of the first insulating rod 31 is provided with a first handle 41, and the operation end of the second insulating rod 32 is provided with a second handle 42 for easy grasp by an operator. In the cable grounding wire, the grounding clip main body 6 has a square frame structure, and the positioning hole 61 has a square hole.
In particular, the present invention provides a number of specific embodiments.
As shown in fig. 3 and fig. 4, in the cable grounding wire according to the first embodiment of the present invention, the top end of the screwing piece is a first bevel gear 1, the connection structure of the connection end of the first insulating rod 31 is a second bevel gear 2 meshed with the first bevel gear 1, and the first bevel gear 1 and the second bevel gear 2 are both sleeved in the housing 8. The housing 8 serves to position the first bevel gear 1 and the second bevel gear 2, as well as to prevent dust.
Further, a first bolt 51 extending into the positioning hole 61 is provided at the bottom end of the grounding clip main body 6, a sliding rod 50 is fixedly connected to the top end of the first bolt 51, and two ends of the sliding rod 50 are slidably connected to two side edges of the grounding clip main body 6.
Thus, the first bevel gear 1 can be rotated by rotating the first insulating rod 31 to adjust the length of the bottom end of the first bevel gear 1 that extends into the positioning hole 61 of the ground clip body 6; the position of the slide bar 50 in the positioning hole 61 of the ground clip main body 6 can be adjusted by rotating the first bolt 51; finally, the cable connection is clamped and unclamped by adjusting the distance between the bottom end of the first bevel gear 1 and the sliding rod 50, or the grounding requirements of cables with different sizes are met by adjusting the distance between the bottom end of the first bevel gear 1 and the sliding rod 50.
In use, an operator holds the first handle 41 with his right hand and the second handle 42 with his left hand, sleeves the grounding clip body 6 to the cable connection to be grounded, and then rotates the first insulating rod 31 clockwise with his right hand until the cable connection is locked. Conversely, rotating the first insulating rod 31 counterclockwise releases the cable connection and removes the cable ground.
As shown in fig. 5 and fig. 6, in the cable grounding wire provided in the second embodiment of the present invention, the screwing piece is a first bolt 51, the bottom end of the first bolt 51 is fixedly connected with a sliding rod 50, and two ends of the sliding rod 50 are respectively connected with two side edges of the grounding clip main body 6 in a sliding manner; further, the connection structure of the connection end of the first insulating rod 31 is a pawl 9 that is fitted with the tip nut of the first bolt 51.
Further, the bottom end of the grounding clip body 6 is provided with a second bolt 52 extending into the positioning hole 61.
Thus, the first bolt 51 can be rotated by rotating the first insulating rod 31 to adjust the position of the slide rod 50 connected to the bottom end of the first bolt 51 in the positioning hole 61 of the ground clip body 6; the length of the second bolt 52 extending into the positioning hole 61 of the ground clip body 6 can be adjusted by rotating the second bolt 52; finally, the cable connection is clamped and loosened by adjusting the distance between the sliding rod 50 and the second bolt 52, or the grounding requirement of cables with different sizes is met by adjusting the distance between the sliding rod 50 and the second bolt 52.
When the cable grounding clamp is used, an operator holds the first handle 41 by the right hand and holds the second handle 42 by the left hand, the grounding clamp main body 6 is sleeved at a cable connection position to be grounded, the surface A of the ratchet wheel 9 faces outwards at the moment, and then the operator moves the right hand up and down to lock the cable connection position. Conversely, the ratchet 9 is operated face-down a to loosen the cable connection and remove the cable ground.
Moreover, after the grounding is completed, the first insulating rod 31 with the pawl 9 and the first handle 41 can be removed, so that the problems of personnel injury, equipment damage, difficult taking out and the like caused by the falling of the cable grounding wire are avoided, and the major potential safety hazard is eliminated.
As shown in fig. 7, in the cable grounding wire provided in the third embodiment of the present invention, the screwing piece is a first bolt 51, the bottom end of the first bolt 51 is fixedly connected with a sliding rod 50, and two ends of the sliding rod 50 are respectively connected with two side edges of the grounding clip main body 6 in a sliding manner; the connection structure of the connection end of the first insulating rod 31 is a flexible drive shaft 10, and both ends of the flexible drive shaft 10 are respectively connected to the top end nut of the first bolt 51 and the connection end of the first insulating rod 31.
As in the second embodiment, the bottom end of the grounding clip body 6 may be provided with a second bolt 52 that extends into the positioning hole 61. Thus, the first bolt 51 can be rotated by rotating the first insulating rod 31 to adjust the position of the slide rod 50 connected to the bottom end of the first bolt 51 in the positioning hole 61 of the ground clip body 6; the length of the second bolt 52 extending into the positioning hole 61 of the ground clip body 6 can be adjusted by rotating the second bolt 52; finally, the cable connection is clamped and loosened by adjusting the distance between the sliding rod 50 and the second bolt 52, or the grounding requirement of cables with different sizes is met by adjusting the distance between the sliding rod 50 and the second bolt 52.
In use, the operator holds the first handle 41 with his right hand and the second handle 42 with his left hand, the grounding clip body 6 is sleeved on the cable connection to be grounded, and then the operator rotates the first handle 31 clockwise with his right hand to lock the cable connection. Otherwise, the operator rotates the first handle 31 counterclockwise by right hand to loosen the cable connection and remove the cable ground.
Specifically, in the above-described embodiment, the first bolt 51 is a double-headed bolt.
The cable grounding wire provided by the embodiment of the invention can be suitable for grounding of the cable connection part of the 10-35 kilovolt cable at the switch cabinet and the like in the transformer substation. The cable grounding wire provided by the embodiment of the invention has a plurality of advantages, such as:
1) The cable grounding wire is little limited by the space in the switch cabinet during operation, can avoid the insulated part of the busbar (namely, the busbar insulation is not required to be stripped or the exposed position is not required to be reserved), and is directly clamped at the cable connection part;
2) Compared with the prior art, the cable grounding wire has the advantages that the operation is simple, flexible, time-saving and labor-saving, the time is saved by about 75%, the working efficiency is improved, the working strength is reduced, the out-of-service maintenance time of equipment is shortened, and the safety risk of a human body entering a cable bin is reduced;
3) The cable grounding wire is safe and reliable, has large contact area with the cable connection part, is connected and fastened, can not be injured and damaged by personnel and equipment caused by falling of the grounding wire, eliminates major potential safety hazards, and improves the power supply reliability, stability and safety of a power grid.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A cable grounding wire, comprising:
the grounding clamp comprises a grounding clamp body (6), wherein a positioning hole (61) used for being sleeved at a cable connecting position is formed in the grounding clamp body (6), a threaded hole (62) is formed in the top end of the grounding clamp body (6), and the extending direction of the threaded hole (62) is perpendicular to the extending direction of the positioning hole (61);
the bottom end of the screwing piece penetrates through the threaded hole (62) and is positioned in the positioning hole (61), and the top end of the screwing piece is positioned outside the positioning hole (61);
a first insulating rod (31), wherein a connecting structure for twisting the top end of the screwing piece is arranged at the connecting end of the first insulating rod (31);
the connecting end of the second insulating rod (32) is hinged with the bottom end of the grounding clamp main body (6);
the top end of the screwing piece is provided with a first bevel gear (1);
the connecting structure of the connecting end of the first insulating rod (31) is a second bevel gear (2) meshed with the first bevel gear (1);
the first bevel gear (1) and the second bevel gear (2) are sleeved in the shell (8);
the grounding clamp main body (6) is of a square frame structure, and the positioning holes (61) are square holes.
2. Cable grounding wire according to claim 1, characterized in that the connection end of the second insulating rod (32) is hinged to the bottom end of the grounding clip body (6) by means of a universal joint (7).
3. Cable grounding wire according to claim 2, characterized in that the universal joint (7) comprises a first transmission joint (71), a second transmission joint (72) and a third transmission joint (73),
one end of the first transmission joint (71) is fixedly connected with the bottom end of the grounding clamp main body (6), the other end of the first transmission joint is hinged with one end of the second transmission joint (72), and the second transmission joint (72) can rotate around the first transmission joint (71) in a first plane;
one end of the third transmission joint (73) is fixedly connected with the connecting end of the second insulating rod (32), the other end of the third transmission joint is hinged with the other end of the second transmission joint (72), the third transmission joint (73) can rotate around the second transmission joint (72) in a second plane, and the second plane is perpendicular to the first plane.
4. The cable grounding wire according to claim 1, wherein a first bolt (51) extending into the positioning hole (61) is arranged at the bottom end of the grounding clamp main body (6), a sliding rod (50) is fixedly connected to the top end of the first bolt (51), and two ends of the sliding rod (50) are respectively connected with two side edges of the grounding clamp main body (6) in a sliding mode.
5. The cable grounding wire according to claim 1, wherein the screwing piece is a first bolt (51), a sliding rod (50) is fixedly connected to the bottom end of the first bolt (51), and two ends of the sliding rod (50) are respectively connected with two side edges of the grounding clamp main body (6) in a sliding manner;
the connecting structure of the connecting end of the first insulating rod (31) is a pawl (9) which is matched with the top end nut of the first bolt (51).
6. The cable grounding wire according to claim 1, wherein the screwing piece is a first bolt (51), a sliding rod (50) is fixedly connected to the bottom end of the first bolt (51), and two ends of the sliding rod (50) are respectively connected with two side edges of the grounding clamp main body (6) in a sliding manner;
the connecting structure of the connecting end of the first insulating rod (31) is a soft transmission shaft (10), and two ends of the soft transmission shaft (10) are respectively and fixedly connected with a top end nut of the first bolt (51) and the connecting end of the first insulating rod (31).
7. Cable grounding wire according to any one of claims 5 or 6, characterized in that the bottom end of the grounding clip body (6) is provided with a second bolt (52) extending into the positioning hole (61).
8. Cable grounding wire according to claim 1, characterized in that the operating end of the first insulating rod (31) is provided with a first handle (41);
and/or the operating end of the second insulating rod (32) is provided with a second handle (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810941.5A CN107611640B (en) | 2017-09-11 | 2017-09-11 | Cable grounding wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710810941.5A CN107611640B (en) | 2017-09-11 | 2017-09-11 | Cable grounding wire |
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| CN107611640A CN107611640A (en) | 2018-01-19 |
| CN107611640B true CN107611640B (en) | 2024-02-06 |
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| CN201710810941.5A Active CN107611640B (en) | 2017-09-11 | 2017-09-11 | Cable grounding wire |
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| CN110556640B (en) * | 2019-09-23 | 2021-01-29 | 国网山西省电力公司长治供电公司 | Special earth connection of block terminal |
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| GB1505572A (en) * | 1974-08-06 | 1978-03-30 | Pfisterer Elektrotech Karl | Earthing terminals |
| CN202917661U (en) * | 2012-10-26 | 2013-05-01 | 安徽省电力公司淮南供电公司 | Double-reed bayonet type grounding wire clamp |
| CN204230457U (en) * | 2014-10-17 | 2015-03-25 | 国家电网公司 | Universal connector earth wire operation rod |
| CN105226412A (en) * | 2015-10-23 | 2016-01-06 | 国网山东郓城县供电公司 | Multifunctional grounding wire insulating bar |
| CN205488639U (en) * | 2016-01-26 | 2016-08-17 | 国家电网公司 | Foldable rotatory handle ground connection operating rod of three -section |
| CN105846182A (en) * | 2016-03-29 | 2016-08-10 | 国网山东省电力公司平阴县供电公司 | Compact low-voltage grounding wire |
| CN207165784U (en) * | 2017-09-11 | 2018-03-30 | 国网浙江省电力公司宁波供电公司 | A kind of cable grounding line |
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|---|---|
| CN107611640A (en) | 2018-01-19 |
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