CN105226412A - Multifunctional grounding wire insulating bar - Google Patents
Multifunctional grounding wire insulating bar Download PDFInfo
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- CN105226412A CN105226412A CN201510696282.8A CN201510696282A CN105226412A CN 105226412 A CN105226412 A CN 105226412A CN 201510696282 A CN201510696282 A CN 201510696282A CN 105226412 A CN105226412 A CN 105226412A
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Abstract
Multifunctional grounding wire insulating bar, comprise earth connection fixture, insulating bar, earth connection fixture comprises fixed part and movable part, fixed part comprises train wheel bridge, train wheel bridge is the cavity body of bottom surface opening, arc-shaped notch is provided with in the middle part of it, in cavity body, longitudinal pole and motion bar are installed, between pole and motion bar, elastic electric conductor is set, the middle part of elastic electric conductor is arranged in arc-shaped notch, elastic electric conductor is at least arranged with 3 retainer rings at equal intervals along arc length, be connected with the lower end of back-moving spring on the upside of retainer ring, radial direction and the train wheel bridge of the upper end edge arc-shaped notch of back-moving spring are fixed, elastic electric conductor is made up of many conductive copper wires arranged in parallel, and one end and the pole of conductive copper wire are fixed, its other end and motion bar fixing after and can be wound around in the folding and unfolding of motion bar periphery.The present invention has the wider scope of application, easy to use, and earth connection fixture has good chucking power to electrified body simultaneously, and contact firmly, guarantees the safety of user of service.
Description
Technical field
The present invention relates to a kind of grounding wire device, belong to power engineering safety auxiliary tool, particularly relate to a kind of Multifunctional grounding wire insulating bar.
Background technology
Earth connection is exactly the line directly connecting the earth, also can be called safety return circuit line, and time dangerous, it can be directly passed to ground high pressure.In Power system, earth connection is the important tool in order to ensure staff when unexpectedly there is voltage on the equipment had a power failure and circuit.Must be 25mm by standard-required earth connection
2above naked copper flexible cord is made.High-voltage earthing line structure comprises insulating bar, wire clamp, short-circuit line, earth connection, earth terminal etc.
At present, the earth connection insulating bar bayonet socket of transformer station is flat mouth, and can only be clipped on rectangle copper aluminium row, but clamping will be caused insecure when being used on flexible conductor and cast copper aluminium busbar, earthing effect reduces greatly.Bayonet socket and bus or other electrified body clampings insecure, make earth connection not have due safeguard protection effect when the situations such as electric leakage occur, therefore there is larger potential safety hazard in existing earth connection.Simultaneously, existing flat mouth type bayonet socket is generally all provided with the groove for clamping electrified body, normally fixing can not the adjusting of the shape of groove and structure, thus at the earth connection instrument needing replacing different when cable, the bus of different size model, use inconvenience, its chucking power had is also not enough; In addition, existing earth wire insulating rod is all generally in fixing linear.When strain rod tower and traditional electric pole electrical verification ground connection, staff due to health be in quite high tower top position, then the hook of the earth connection of this fixed structure is suspended on power transmission line, because the position of getting on is different at every turn, so when tower top operation, mode and the direction of its hook all can change to some extent, but the hook of earth connection is but constant all the time, so hang up very inconvenient, usually need staff to lean to one side or the action such as to be moved in high-altitude, there is great potential safety hazard.
Chinese patent (application number 201210410759.8, authorized announcement date on May 13rd, 2015) discloses " a kind of and a kind of earth connection ", comprise insulating bar, hook and ground lead, one end conduction of described ground lead is fixedly connected on hook, described hook is arranged on the top of insulating bar, the top of described hook and insulating bar is hinged by connecting pin, between hook and the top of insulating bar, be provided with positioner.This invention realizes hook can rotate relative to insulating bar by arranging positioner between hook with insulating bar top, thus solves the problem that hook tilts to use, but the technical scheme adopted is more complicated, can not realize more accurate angle of inclination and control.
Summary of the invention
The invention provides a kind of Multifunctional grounding wire insulating bar, in order to solve defect of the prior art.
In order to realize object of the present invention, by the following technical solutions:
Multifunctional grounding wire insulating bar, comprise earth connection fixture, insulating bar, described earth connection fixture comprises fixed part and movable part, movable part is located on the downside of fixed part, described fixed part comprises train wheel bridge, train wheel bridge right-hand member at right angle setting side plate, described side plate top has vertical strip shape gob, earth connection gim peg is installed in its underpart, described train wheel bridge is the cavity body of bottom surface opening, arc-shaped notch is provided with in the middle part of it, in cavity body, longitudinal pole and motion bar are installed, between pole and motion bar, elastic electric conductor is set, the middle part of described elastic electric conductor is arranged in arc-shaped notch, elastic electric conductor is at least arranged with 3 flat retainer rings at equal intervals along arc length, be connected with the lower end of back-moving spring on the upside of retainer ring, radial direction and the train wheel bridge of the upper end edge arc-shaped notch of back-moving spring are fixed, described elastic electric conductor is made up of many conductive copper wires arranged in parallel, one end and the pole of conductive copper wire are fixed, its other end and motion bar also can be wound around in the folding and unfolding of motion bar periphery after fixing, conductive copper wire tension can make arc length reduce or unclamp to make arc length become large by rotary moveable bar, one end of described motion bar is coordinated with the first nut by helicitic texture, its other end installs swing handle after stretching out train wheel bridge, and the first nut and train wheel bridge are fixed, described movable part comprises the locating rack be made up of vertical connecting plate and cross connecting plate, cross connecting plate right-hand member is vertical with vertical connecting plate to be fixed, on the right side of vertical connecting plate, pilot pin is installed, pilot pin is fixed by the second nut and side plate through after strip shape gob, the female screw of vertical belt is had in the middle part of described cross connecting plate, be provided with screw rod in screw, lower clamping piece is installed in described screw rod upper end, and screw rod bottom arranges external screw thread, described insulating bar is connected and fixed by helicitic texture and screw rod.
In order to realize object of the present invention further, can also by the following technical solutions:
Described insulating bar comprises upper boom joint and lower beam joint, is connected between upper boom joint saves with lower beam by rotary fixing structure.Described rotary fixing structure comprises out the first ladder mouth plane in upper boom joint lower end, the second-order ladder way plane that lower beam joint upper end is offered and fan-shaped ripple shell fragment, first ladder mouth plane, second-order ladder way plane relatively also offers groove respectively, groove floor arranges fan-shaped corrugated surface, described fan-shaped ripple shell fragment is arranged in groove, the centre of side groove floor has tapped counterbore, the centre of another groove floor has tapped through hole, install in through hole and tight a bolt, tight a bolt to coordinate with counterbore and upper boom can be saved and lower beam saves rotating fixing.The described back-moving spring tension force of middle part is greater than the back-moving spring tension force at position, both sides.Meanwhile, described back-moving spring can be provided with 5 or 7, the tension force of back-moving spring is successively decreased respectively to position, both sides by middle part.More piece extension rod is installed in the lower end of described insulating bar, is all connected and fixed by helicitic texture between insulating bar and extension rod, between adjacent extension rod.The periphery of described extension rod is provided with vertical scale marker.Described pilot pin is provided with 2 covers.The stationary pipes of the radial direction setting of the outer sheathed arcuately recess of described back-moving spring, upper end and the train wheel bridge of stationary pipes are fixed, its lower ending opening.
Beneficial effect of the present invention:
1, cavity body structure is arranged to by the train wheel bridge of earth connection fixture of the present invention, and the groove of train wheel bridge bottom is strengthened formation arc-shaped notch, and in arc-shaped notch, elastic electric conductor is installed, this elastic electric conductor is made up of many conductive copper wires arranged in parallel, by pole and motion bar, the two ends of conductive copper wire are fixed, elastic electric conductor is evenly arranged with multiple flat retainer ring, on the upside of retainer ring and between train wheel bridge, back-moving spring is installed, elastic electric conductor can be arranged to arc by the difference of back-moving spring tension force, and can be tightened up by rotary moveable bar or decontrol conductive copper wire, change the crooked radian of elastic electric conductor, thus the clamp port of train wheel bridge can be made adjustable, earth connection fixture is made can more firmly to clamp different cables, the electrified body specifications such as bus, convenient adjustment and use.
2, adopt conductive copper wire side by side to form elastic electric conductor, make its radian easy to adjust, ensure to have clamping and electric conductivity preferably; In addition, relative to adopting the elastic electric conductor of tabular, the elastic electric conductor that conductive copper wire is formed has and better prevents from rocking performance, is similar to and forms many jaws.Install stationary pipes outward at back-moving spring, can play good guide effect to back-moving spring, prevent back-moving spring and retainer ring when elastic electric conductor radian regulates to be partial to, reduction train wheel bridge and lower clamping piece are to the clamping effect of electrified body.
3, on insulating bar, be provided with upper boom joint and lower beam joint, upper boom joint and lower beam joint realize being connected and fixed by rotary fixing structure.This selection fixed structure can adopt the groove and the fan-shaped ripple shell fragment formation that save connecting portion respectively at upper boom joint and lower beam, the bottom surface of groove arranges the fan-shaped corrugated surface coordinated with fan-shaped ripple shell fragment, the centre of side groove has counterbore, the centre of another groove has through hole, arrange in through hole and tight a bolt, upper boom joint and lower beam joint more conveniently can be realized installation by tighting a bolt with counterbore cooperation to fix, after installation, when needing to rotate upper boom joint, earth connection fixture can be driven to realize the adjustment at angle of inclination by rotating upper boom joint, now, upper boom joint can save with lower beam and be fixed on arbitrary angle by the chucking power that fan-shaped ripple shell fragment and fan-shaped ripple mask have, thus realize more accurate angle of inclination regulation and control.
4, multiple extension rod can also be spliced in the lower end of insulating bar, electrified body earth connection for eminence position is installed, do not need climbing or ladder can stand in ground to realize installing, in addition, the scale marker that extension rod is arranged can measure the height on electrified body and ground easily, facilitates the setting of earth cord.Realize being connected by helicitic texture between insulating bar with extension rod, between adjacent extension rod, to be easy to carry, assembly and disassembly.
5, the present invention has the wider scope of application, easy to use, significantly can reduce the time that earth connection is installed; Earth connection fixture has good chucking power to electrified body simultaneously, and contact firmly, guarantees the safety of user of service.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is I close-up schematic view in Fig. 1.
Fig. 3 is II close-up schematic view in Fig. 1
Fig. 4 is that the A-A of Fig. 2 is to cutaway view.
Fig. 5 is the B direction view of Fig. 3.
Reference numeral: 1-train wheel bridge, 2-side plate, 3-earth connection gim peg, 4-arc-shaped notch, 5-pole, 6-motion bar, 7-elastic electric conductor, 8-retainer ring, 9-back-moving spring, 10-first nut, 11-swing handle, the vertical connecting plate of 12-, 13-cross connecting plate, 14-pilot pin, 15-second nut, 16-screw rod, 17-lower clamping piece, 18-insulating bar, 19-upper boom saves, and 20-lower beam saves, 21-groove, the fan-shaped ripple shell fragment of 23-, 24-tights a bolt, 25-extension rod.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As Figure 1-5, Multifunctional grounding wire insulating bar, comprise earth connection fixture, insulating bar 18, described earth connection fixture comprises fixed part and movable part, movable part is located on the downside of fixed part, described fixed part comprises train wheel bridge 1, train wheel bridge 1 right-hand member at right angle setting side plate 2, described side plate 2 top has vertical strip shape gob, earth connection gim peg is installed in its underpart, described train wheel bridge 1 is the cavity body of bottom surface opening, arc-shaped notch 4 is provided with in the middle part of it, in cavity body, longitudinal pole 5 and motion bar 6 are installed, elastic electric conductor 7 is set between pole 5 and motion bar 6, the middle part of described elastic electric conductor 7 is arranged in arc-shaped notch 4, elastic electric conductor 7 is at least arranged with 3 flat retainer rings 8 at equal intervals along arc length, be connected with the lower end of back-moving spring 9 on the upside of retainer ring 8, radial direction and the train wheel bridge 1 of the upper end edge arc-shaped notch 4 of back-moving spring 9 are fixed, described elastic electric conductor 7 is made up of many conductive copper wires arranged in parallel, one end and the pole 5 of conductive copper wire are fixed, its other end and motion bar 6 also can be wound around in motion bar 6 periphery folding and unfolding after fixing, conductive copper wire tension can make arc length reduce or unclamp to make arc length become large by rotary moveable bar 6, one end of described motion bar 6 is coordinated with the first nut 10 by helicitic texture, its other end is installed swing handle 11, first nut 10 and is fixed with train wheel bridge 1 after stretching out train wheel bridge 1, described movable part comprises the locating rack be made up of vertical connecting plate 12 and cross connecting plate 13, cross connecting plate 13 right-hand member is vertical with vertical connecting plate 12 to be fixed, on the right side of vertical connecting plate 12, pilot pin 14 is installed, pilot pin 14 is fixed by the second nut 15 and side plate 2 through after strip shape gob, the female screw of vertical belt is had in the middle part of described cross connecting plate 13, be provided with screw rod 16 in screw, lower clamping piece 17 is installed in described screw rod 16 upper end, and screw rod 16 bottom arranges external screw thread, described insulating bar 18 is connected and fixed by helicitic texture and screw rod 16.
Specifically, the Multifunctional grounding wire insulating bar that the present embodiment provides, realize being connected and fixed by helicitic texture between earth connection fixture and insulating bar 18, the train wheel bridge 1 of earth connection fixture is arranged to cavity structure simultaneously, groove 21 bottom train wheel bridge 1 strengthens to form arc-shaped notch 4, and in arc-shaped notch 4, elastic electric conductor 7 is installed, this elastic electric conductor 7 is made up of many conductive copper wires arranged in parallel, by the fixed lever and motion bar 6 that are arranged on arc-shaped notch 4 both sides, the two ends of conductive copper wire are fixed, elastic electric conductor 7 is evenly arranged with multiple flat retainer ring 8, on the upside of retainer ring 8 and between train wheel bridge 1, back-moving spring 9 is installed, elastic electric conductor 7 can be arranged to arc by the difference of back-moving spring 9 tension force, and can tighten up or decontrol the length of conductive copper wire by rotary moveable bar 6, thus realize the adjustment of the crooked radian of elastic electric conductor 7.Earth connection fixture is made can more firmly to clamp the electrified body specifications such as different cables, bus, convenient adjustment and use.
During use, according to the specification size of electrified body, position bolt 14 position adjustments in advance, thus tentatively by the distance setting between train wheel bridge 1 and lower clamping piece 17, then earth connection fixture is fixed on insulating bar 18 upper end by screw rod 16.Adjust the radian of elastic electric conductor 7 simultaneously and be interposed in by electrified body between train wheel bridge 1 and lower clamping piece 17, rotating insulated bar 18 drives lower clamping piece 17 moves and makes electrified body by firm grip.Adopt elastic electric conductor 7, can be passed through in advance to the extruding of elastic electric conductor 7 when electrified body clamps, and keep good holddown spring to pass to the thrust of electrified body by elastic electric conductor 7, be grounded that flexible cord and electrified body are stable to be connected, guarantee to use safely.
As shown in Fig. 1, Fig. 3 and Fig. 5, insulating bar 18 described in the present embodiment comprises upper boom joint 19 and lower beam joint 20, and upper boom joint 19 is connected by rotary fixing structure between saving 20 with lower beam.Further this rotary fixing structure can be in the following way, save 19 lower ends at upper boom and offer the first ladder mouth plane, lower beam saves 20 upper ends and offers second-order ladder way plane and fan-shaped ripple shell fragment 23, first ladder mouth plane, second-order ladder way plane relatively and be respectively equipped with groove 21, the bottom surface of groove 21 is equipped with fan-shaped corrugated surface, fan-shaped ripple shell fragment 23 is arranged in groove 21, the centre of side groove 21 bottom surface has tapped counterbore, the centre of another groove 21 bottom surface has tapped through hole, install in through hole and tight a bolt 24, tight a bolt 24 to coordinate with counterbore upper boom can be saved 19 and lower beam save 20 rotating fixing.By tight a bolt 24 and counterbore coordinate upper boom can be saved 19 and lower beam joint 20 more conveniently realize installing fixing, after installation, when needing rotation upper boom to save 19, earth connection fixture can be driven to realize the adjustment at angle of inclination by rotating upper boom joint 19, now, upper boom can be saved 19 and save 20 be fixed on arbitrary angle with lower beam by the chucking power that fan-shaped ripple shell fragment 23 and fan-shaped ripple mask have, thus realizes more accurate angle of inclination regulation and control.
As shown in Figure 1 and Figure 2, in order to increase the radian of elastic electric conductor 7, expanding and described back-moving spring 9 tension force of the present embodiment middle part can be greater than back-moving spring 9 tension force at position, both sides.Meanwhile, described back-moving spring 9 can be arranged 5 or 7, the tension force of back-moving spring 9 is successively decreased respectively to position, both sides by middle part, and the radian of elastic electric conductor 7 can be made rounder and more smooth.
As shown in Figure 1, the present embodiment is installed in the lower end of described insulating bar 18 can more piece extension rod 25, is all connected and fixed by helicitic texture between insulating bar 18 and extension rod 25, between adjacent extension rod 25.Multiple extension rod 25 can also be spliced in the lower end of insulating bar 18, and the electrified body earth connection for eminence position is installed, and does not need climbing or ladder can stand in ground and realizes installing.Further, the periphery of described extension rod 25 can also be provided with vertical scale marker.The scale marker that extension rod 25 is arranged can measure the height on electrified body and ground easily, facilitates the setting of earth cord.Realize being connected by helicitic texture between insulating bar 18 with extension rod 25, between adjacent extension rod 25, be easy to carry, assembly and disassembly.
Further, the stationary pipes that the present embodiment establishes the radial direction of arcuately recess 4 to arrange at described back-moving spring overcoat 9, upper end and the train wheel bridge 1 of stationary pipes are fixed, its lower ending opening.Outside back-moving spring 9, stationary pipes is installed, good guide effect can be played to back-moving spring 9, prevent back-moving spring 9 and retainer ring 8 when elastic electric conductor 7 radian regulates to be partial to, reduce the clamping effect of train wheel bridge 1 and lower clamping piece 17 pairs of electrified bodies.
The present invention has the wider scope of application, easy to use, significantly can reduce the time that earth connection is installed; Earth connection fixture has good chucking power to electrified body simultaneously, and contact firmly, guarantees the safety of user of service.
The technology contents of the not detailed description of the present invention is known technology.
Claims (9)
1. Multifunctional grounding wire insulating bar, comprise earth connection fixture, insulating bar, described earth connection fixture comprises fixed part and movable part, movable part is located on the downside of fixed part, described fixed part comprises train wheel bridge, train wheel bridge right-hand member at right angle setting side plate, described side plate top has vertical strip shape gob, earth connection gim peg is installed in its underpart, it is characterized in that, described train wheel bridge is the cavity body of bottom surface opening, arc-shaped notch is provided with in the middle part of it, in cavity body, longitudinal pole and motion bar are installed, between pole and motion bar, elastic electric conductor is set, the middle part of described elastic electric conductor is arranged in arc-shaped notch, elastic electric conductor is at least arranged with 3 flat retainer rings at equal intervals along arc length, be connected with the lower end of back-moving spring on the upside of retainer ring, radial direction and the train wheel bridge of the upper end edge arc-shaped notch of back-moving spring are fixed, described elastic electric conductor is made up of many conductive copper wires arranged in parallel, one end and the pole of conductive copper wire are fixed, its other end and motion bar also can be wound around in the folding and unfolding of motion bar periphery after fixing, conductive copper wire tension can make arc length reduce or unclamp to make arc length become large by rotary moveable bar, one end of described motion bar is coordinated with the first nut by helicitic texture, its other end installs swing handle after stretching out train wheel bridge, and the first nut and train wheel bridge are fixed, described movable part comprises the locating rack be made up of vertical connecting plate and cross connecting plate, cross connecting plate right-hand member is vertical with vertical connecting plate to be fixed, on the right side of vertical connecting plate, pilot pin is installed, pilot pin is fixed by the second nut and side plate through after strip shape gob, the female screw of vertical belt is had in the middle part of described cross connecting plate, be provided with screw rod in screw, lower clamping piece is installed in described screw rod upper end, and screw rod bottom arranges external screw thread, described insulating bar is connected and fixed by helicitic texture and screw rod.
2. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, described insulating bar comprises upper boom joint and lower beam joint, is connected between upper boom joint saves with lower beam by rotary fixing structure.
3. Multifunctional grounding wire insulating bar according to claim 2, it is characterized in that, described rotary fixing structure comprises out the first ladder mouth plane in upper boom joint lower end, the second-order ladder way plane that lower beam joint upper end is offered and fan-shaped ripple shell fragment, first ladder mouth plane, second-order ladder way plane relatively also offers groove respectively, groove floor arranges fan-shaped corrugated surface, described fan-shaped ripple shell fragment is arranged in groove, the centre of side groove floor has tapped counterbore, the centre of another groove floor has tapped through hole, install in through hole and tight a bolt, tight a bolt to coordinate with counterbore and upper boom can be saved and lower beam saves rotating fixing.
4. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, the described back-moving spring tension force of middle part is greater than the back-moving spring tension force at position, both sides.
5. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, described back-moving spring is provided with 5 or 7, and the tension force of back-moving spring is successively decreased respectively to position, both sides by middle part.
6. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, more piece extension rod is installed in the lower end of described insulating bar, is all connected and fixed by helicitic texture between insulating bar and extension rod, between adjacent extension rod.
7. Multifunctional grounding wire insulating bar according to claim 4, is characterized in that, the periphery of described extension rod is provided with vertical scale marker.
8. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, described pilot pin is provided with 2 covers.
9. Multifunctional grounding wire insulating bar according to claim 1, is characterized in that, the stationary pipes of the radial direction setting of the outer sheathed arcuately recess of described back-moving spring, upper end and the train wheel bridge of stationary pipes are fixed, its lower ending opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696282.8A CN105226412B (en) | 2015-10-23 | 2015-10-23 | Multifunctional grounding wire insulating bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510696282.8A CN105226412B (en) | 2015-10-23 | 2015-10-23 | Multifunctional grounding wire insulating bar |
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| CN105226412A true CN105226412A (en) | 2016-01-06 |
| CN105226412B CN105226412B (en) | 2018-02-06 |
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| CN201510696282.8A Expired - Fee Related CN105226412B (en) | 2015-10-23 | 2015-10-23 | Multifunctional grounding wire insulating bar |
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| CN106053891A (en) * | 2016-07-13 | 2016-10-26 | 国家电网公司 | Auxiliary wiring device for high-altitude high voltage tests |
| CN106128786A (en) * | 2016-06-29 | 2016-11-16 | 国网山东省电力公司济南市历城区供电公司 | A kind of low-voltage ground line apparatus |
| CN106159490A (en) * | 2016-06-29 | 2016-11-23 | 国网山东省电力公司济南市历城区供电公司 | A kind of earth lead installs operation device |
| CN106207525A (en) * | 2016-06-29 | 2016-12-07 | 国网山东省电力公司济南市历城区供电公司 | A kind of split-type is connected wires installation tool |
| CN107611640A (en) * | 2017-09-11 | 2018-01-19 | 国网浙江省电力公司宁波供电公司 | Cable grounding line |
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| CN107611640A (en) * | 2017-09-11 | 2018-01-19 | 国网浙江省电力公司宁波供电公司 | Cable grounding line |
| CN108777380A (en) * | 2018-06-01 | 2018-11-09 | 广东电网有限责任公司 | Portable grounding wire |
| CN108832328A (en) * | 2018-07-16 | 2018-11-16 | 广州供电局有限公司 | Cable clamp structure |
| CN110208648A (en) * | 2019-05-28 | 2019-09-06 | 国家电网有限公司 | A kind of seal for electric field preventing ground fault |
| CN110208648B (en) * | 2019-05-28 | 2024-04-09 | 国家电网有限公司 | Insulation device for preventing ground fault on electric power site |
| CN110459886A (en) * | 2019-08-26 | 2019-11-15 | 福建亿瑞电力科技有限公司 | A kind of ground line fixture |
| CN113643864A (en) * | 2021-09-06 | 2021-11-12 | 国网江苏省电力有限公司常州供电分公司 | Cross arm insulator reinforcement device |
| CN113643864B (en) * | 2021-09-06 | 2023-09-08 | 国网江苏省电力有限公司常州供电分公司 | Cross arm insulator reinforcing device |
| CN114374102A (en) * | 2021-12-02 | 2022-04-19 | 华能澜沧江水电股份有限公司 | Ground wire assembling clamp |
| CN117134135A (en) * | 2023-10-26 | 2023-11-28 | 国网山东省电力公司庆云县供电公司 | Power grounding wire clamp |
| CN117134135B (en) * | 2023-10-26 | 2024-01-19 | 国网山东省电力公司庆云县供电公司 | Power grounding wire clamp |
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| CN105226412B (en) | 2018-02-06 |
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