CN106877028A - A kind of earth connection point for double bundle conductor - Google Patents
A kind of earth connection point for double bundle conductor Download PDFInfo
- Publication number
- CN106877028A CN106877028A CN201710178734.2A CN201710178734A CN106877028A CN 106877028 A CN106877028 A CN 106877028A CN 201710178734 A CN201710178734 A CN 201710178734A CN 106877028 A CN106877028 A CN 106877028A
- Authority
- CN
- China
- Prior art keywords
- jig arm
- support
- bundle conductor
- connection point
- double bundle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
- H01R4/4863—Coil spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5008—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using rotatable cam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Electric Cable Installation (AREA)
Abstract
The present invention relates to a kind of earth connection point for double bundle conductor,Including stretching into the supporter between double bundle conductor,Two support bars are provided with supporter,The rod end of two struts is provided with ground clamp,Ground clamp includes first,Second jig arm,First,Second jig arm one end hinge arrangement,The other end constitutes the clamp port of clamping wire,First jig arm is fixed on support,The support is arranged on supporter,Drive mechanism drive one end of support bar and the second jig arm against or separate and interlock the clamp port of ground clamp and diminish or increase,When using,Supporter is stretched between double bundle conductor,And rotational support body,So that the ground clamp on two support bars on supporter implements the preliminary clamping to wire,Drive mechanism drive supporter cause one end of the second jig arm against,So as to the clamp port for interlocking ground clamp diminishes,And then further clamping of the realization to double bundle conductor,The earth connection point is easy to use,Reliability is stronger and more targeted.
Description
Technical field
The present invention relates to a kind of earth connection point for double bundle conductor, belong to electrical equipment technical field.
Background technology
When high-voltage grounding wire has important effect, circuit and Substation construction in power system service work, to prevent
Neighbouring electrical body ensures that safety is used when producing electrostatic induction electric shock or false switching.During electric power apparatus examination, without ground connection lock
The interval of knife in repair apparatus both sides, it is necessary to install ground wire additional；When certain interval needs to carry out earthing switch blade drawing debugging, need
Want another attaching ground wire.Current 220kV transmission lines of electricity more and more use double bundle conductor, are carrying out the power failure inspection of 220kV intervals
, it is necessary to install ground wire additional in line side when repairing.The single-phase generally wire of 220kV ground wires that current transformer station uses connects
Head, can only clamp in single-phase double bundle conductor during installation, another clamps without earth terminal in double bundle conductor, if
Single-phase terminal is clamped not strongly admittedly, then not having ground connection effect makes i.e. maintainer have Danger Electric shock risk；If double bundle conductor
Several conductor spacers because corrosion loosen cause loose contact, then can cause wherein one wire of double bundle conductor without ground wire.
In New Generation of Intelligent transformer station, isolation circuit breakers are generally employed, isolation circuit breakers line side and bus bar side do not have
There is plug-in strip, and the earthing switch blade of isolation circuit breakers is arranged on the framework of isolation circuit breakers.In isolation circuit breakers interruption maintenance,
Typically earthing switch blade overhaul need to be carried out with reference to power failure, now need to install one group of ground wire additional in isolation circuit breakers line side.When
220kV wires are double bundle conductor, can only be fixed on wherein one wire of double bundle conductor using traditional ground wire, and
Now isolation circuit breakers line side and isolation circuit breakers are only protected that (isolation circuit breakers are straight with circuit by this ground wire in itself
Connect in succession and be not turned off a little), when the wire clamp clamping of a ground wire wherein phase is not tight or due to certain external cause comes off when, every
Maintainer on the maintainer in breaker line side and isolation circuit breakers body will simultaneously lose ground wire guarantor moment
Shield, this causes very big risk without being worked suspected of interruption maintenance.
The content of the invention
The purpose of the present invention is：A kind of stronger and more targeted Novel connecting ground wire of easy to use, reliability is provided to connect
Head.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of earth connection point for double bundle conductor, including the supporter between double bundle conductor is stretched into, the support
Two support bars are provided with body, the rod end of two strut is provided with ground clamp, and the ground clamp includes first, second folder
Arm, first, second jig arm one end hinge arrangement, the other end constitute the clamp port of clamping wire, and first jig arm is fixed
On support, the support is arranged on supporter, drive mechanism drive one end of support bar and the second jig arm against or separate
And the clamp port of gearing ground clamp diminishes or increases.
Also there are following characteristics in the present invention：
The rod end of two strut is provided with support arm, and first jig arm is hinged on support arm and jointed shaft and
First, the jointed shaft of the second jig arm is parallel, and drive mechanism drives strut to be located on support arm and Telescoping is presented and pressed from both sides with second
One end of arm against or separate.
First, second connecting rod is hinged with described two first jig arm, the head rod in two first jig arm it is another
The other end of one end and the second connecting rod is hinged, and the two ends jointed shaft of first, second connecting rod is vertically and with first, the
The jointed shaft of two jig arm is vertical, and two head rods and two second connecting rods integrally assume diamond in shape supporting structure.
The place of being articulated and connected of two head rod and two second connecting rods is provided with extension spring.
The Y-shaped shelf-like of support arm, first jig arm is hinged in the bayonet socket of support arm, and the support arm is opened
Intraoral to be provided with screwed hole, the rod end of the support bar stretches out screwed hole, and the rod end of the support bar is provided with threaded connection section
And be threadedly coupled with screwed hole composition.
The support arm bottom is provided with the first back-up ring, and the shaft of the support bar is provided with the second back-up ring, the support
Spring is arranged with bar, the two ends of the spring are resisted against on the first back-up ring and the second back-up ring.
The supporter includes casing, is provided with two disk gears in the casing, the hub of the two disks gear it is parallel and
Rotary type is arranged on casing, and the support bar rotary type on casing and rod end is stretched into casing, stretch by the support bar
Enter end and be provided with driven gear and engaged with two disk gears, drive gear is additionally provided between the two disks gear.
The outer wall of the casing is extended with sleeve, and the core wheel of the drive gear is provided with shank and stretches into sleeve,
The shank constitutes grafting and coordinates with insulating bar.
U-bracket plate is provided with the casing, its both ends open refers between the U-bracket plate is arranged on two disk gears
To two disk gear cards, the driven gear rotary type is arranged on the bottom land of U-bracket plate.
The clamp port end of second jig arm is provided with inclined-plane, and the inclined-plane inclines cloth away from the clamp port of the first jig arm
Put.
Compared with prior art, the technique effect that possesses of the present invention is：Device stretches into supporter double when actually used
Between split conductor, and rotational support body so that the ground clamp on two support bars on supporter is implemented to the preliminary of wire
Clamp, and drive supporter to cause one end of the second jig arm against so that linkedly using operating personnel's operation drive mechanism
The clamp port of wire clamp diminishes, and then realizes further clamping to double bundle conductor, the earth connection point is easy to use, reliability more
It is strong and more targeted.
Brief description of the drawings
The earth connection point that Fig. 1 is directed to double bundle conductor removes the structural representation after spring；
Fig. 2 is another viewing angle constructions schematic diagram of Fig. 1；
The earth connection point that Fig. 3 is directed to double bundle conductor removes the structural representation after casing；
Fig. 4 is directed to the front view of the earth connection point of double bundle conductor.
Specific embodiment
With reference to Fig. 1 to Fig. 4, the present invention is further described：
A kind of earth connection point for double bundle conductor, including stretch into the supporter 10 between double bundle conductor, the branch
Two support bars 20 are provided with support body 10, the rod end of two strut 20 is provided with ground clamp 30, and the ground clamp 30 includes
First, second jig arm 31,32, first, second jig arm 31,32 one end hinge arrangements, the other end constitute the folder of clamping wire
Mouth is held, first jig arm 31 is fixed on support, and the support is arranged on supporter 10, drive mechanism drives support bar 20
With one end of the second jig arm 32 against or separate and interlock the clamp port of ground clamp 30 and diminish or increase；
With reference to shown in Fig. 1 to Fig. 4, when actually used, operating personnel stretches into supporter 10 double for above-mentioned earth connection point
Between split conductor, and cause that supporter rotates 90 ° so that the ground clamp 30 on two support bars 20 rotates 90 °, ground wire at random
More lax state is between first, second jig arm 31,32 on folder 30 so that first, second jig arm 31 of wire importing,
Between 32, so as to realize the preliminary clamping to wire, operating personnel starts drive mechanism so that the rod end of support bar 20 is resisted against
In second jig arm 32, so that the second jig arm 31 is rotated around jointed shaft, and then cause that clamp port diminishes so that one is entered to wire
Step is clamped；
Above-mentioned earth connection point increased the reliability of ground connection, eliminate traditional ground wire to two wires of double bundle conductor not
The defect that can be all grounded, it is to avoid the risk that the ground wire of traditional single lug is caused when wire clamp loose contact or when coming off,
Even if two wire clamps of single-phase earthing line wherein have one to come off during earth connection point use of the present invention, another line
Folder can also keep line-to-ground；
Using the ground wire of earth connection point of the present invention, three earth connection points of three-phase are had.Per phase ground wire on top
End is divided into two strands of ground wires, and two strands of ground wires are separately fixed on two ground clamps 30 of this earth connection point so that two ground wires
Folder 30 can reliable ground.
The present invention is applied in the place high to ground connection reliability requirement, and double bundle conductor is used mainly for 220kV circuits
Transformer station and circuit.Such as using the New Generation of Intelligent transformer station of isolated breaker, when switch and circuit turn maintenance, make
Use this earth connection point.
When using in double bundle conductor transformer station, the reliability of ground connection is significantly improved.Particularly using isolated
Isolation circuit breakers and circuit in the New Generation of Intelligent transformer station of breaker turn upkeep operation.
Used as further preferred scheme of the invention, the rod end of two strut 20 is provided with support arm 21, described first
Jig arm 31 is hinged on support arm 21 and jointed shaft is parallel with the jointed shaft of first, second jig arm 31,32, and drive mechanism drives support
Bar 20 be located on support arm 21 present Telescoping and with one end of the second jig arm 32 against or separate；
Above-mentioned drive mechanism cause strut 20 stretch out support arm 21 and with one end of the second jig arm 32 against so that
Second jig arm 32 is rotated around jointed shaft so that the second jig arm 32 diminishes with the clamp port of the other end of the first jig arm 31, so as to realize
Clamping to wire.
Further, first, second connecting rod 33,34, two first jig arm 31 are hinged with described two first jig arm 31
On the other end of head rod 33 and the other end of the second connecting rod 34 be hinged, first, second connecting rod 33,34
Two ends jointed shaft it is vertically and vertical with the jointed shaft of first, second jig arm 31,32, two head rods 33 and two second companies
The overall supporting structure that assumes diamond in shape of extension bar 34；
The overall supporting structure that assumes diamond in shape of above-mentioned two head rods, 33 and two second connecting rod 34 is realized to ground clamp 30
Support so that the first jig arm 31 in ground clamp 30 is in restrained condition, and the first jig arm 31 is also hinged and is arranged on support
On arm 21, so as to realize the entirety constraint to whole ground clamp 30, the support to ground clamp 30 is realized, driven using drive mechanism
Strut 20 is located at during being stretched on support arm 21, realize to one end of the second jig arm 32 against.
Further, with reference to shown in Fig. 3, two head rod 33 sets with the place of being articulated and connected of two second connecting rods 34
It is equipped with extension spring 35；
Above-mentioned extension spring 35 is arranged on the place that is articulated and connected of two head rods 33 and two second connecting rods 34 so that two
The support of one connecting rod 33 and two second connecting rod 34 constitutes that diamond structure length is most long so that between two ground clamps 30 away from
From farthest, the clamping demand of the split conductor of ultimate range is suitable for, is acted on using extension spring 35, adapting to double separation of small distance
During wire, the length of extension spring 35 diminishes so that the diamond structure length that two head rods 33 and two second connecting rod 34 are constituted
Shorten, so as to be suitable for double separation conductor clamping demands of small distance, therefore adaptive ability of the invention is strong, is suitable for difference
Double bundle conductor clamping demand.
Specifically, the Y-shaped shelf-like of the support arm 21, first jig arm 31 is hinged in the bayonet socket of support arm 21,
Screwed hole is provided with the opening of the support arm 21, the rod end of the support bar 20 stretches out screwed hole, the support bar 20
Rod end is provided with threaded connection section and is constituted with screwed hole and is threadedly coupled；
During above-mentioned drive mechanism drives support bar 20 to rotate, so that the rod end of support bar 20 stretches out support bar
20, with realize to one end of the second jig arm 32 against.
Closer, the bottom of the support arm 21 is provided with the first back-up ring 211, and the shaft of the support bar 20 is provided with
Second back-up ring 201, is arranged with spring 22 on the support bar 20, the two ends of the spring 22 are resisted against the first back-up ring 211 and
On two back-up rings 201；
During above-mentioned support bar 20 is rotated, so that the compression to spring 22 is realized, to strengthen earth connection point behaviour
Damping sense when making.
The supporter 10 includes being provided with two disk gears 12 in casing 11, the casing 11, the two disks gear 12
Hub is parallel and rotary type is arranged on casing 11, and the rotary type of the support bar 20 is on casing 11 and rod end stretches into casing 11
Interior, the inserting end of the support bar 20 is provided with driven gear 23 and is engaged with two disk gears 12, between the two disks gear 12 also
It is provided with drive gear 13；
Can interlock two disk gears 12 and rotate, so that support bar 20 is rotated by rotational driving gear 13.
Specifically, the outer wall of the casing 11 is extended with sleeve 111, and the core wheel of the drive gear 13 is provided with shank
And stretch into sleeve 111, the shank constitutes grafting and coordinates with insulating bar；
Supporter 10 because above-mentioned ground clamp 30 is tentatively clamped on wire therefore above-mentioned tentatively realizes branch
Support, the hand-held insulating bar of operating personnel is plugged on the core wheel of the drive gear 13 in sleeve 111, and operating personnel is rotating insulating bar
When, may be such that drive gear 13 is rotated, so as to interlock the action of said mechanism.
Specifically, U-bracket plate 112 is provided with the casing 11, the U-bracket plate 112 is arranged on two disk gears
Its both ends open points to the card of two disk gear 12 between 12, and the rotary type of the driven gear 23 is arranged on the groove of U-bracket plate 112
Bottom.
The clamp port end of second jig arm 32 is provided with inclined-plane 321, clamping of the inclined-plane 321 away from the first jig arm 31
Mouth is in tilted layout；
The above-mentioned hand-held insulating bar of operating personnel, and supporter 10 is stretched between double bundle conductor, and rotate 90 °,
So that the clamp port that the second jig arm 32 and the first jig arm 31 on ground clamp 30 on support bar 20 are formed is snapped on wire, wire
The clamp port that the second jig arm 32 and the first jig arm 31 are formed is slipped into along inclined-plane 321, so as to conveniently realize whole earth connection point
Operation.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be in other specific forms realized.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires to be limited rather than described above, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as the claim involved by limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (10)
1. a kind of earth connection point for double bundle conductor, it is characterised in that：Including stretching into the supporter between double bundle conductor
(10) two support bars (20), are provided with the supporter (10), the rod end of two strut (20) is provided with ground clamp
(30), the ground clamp (30) includes first, second jig arm (31,32), and described first, second jig arm (31,32) one end is hinged
Arrangement, the other end constitute the clamp port of clamping wire, and first jig arm (31) is fixed on support, and the support is arranged on branch
On support body (10), drive mechanism drive support bar (20) and one end of the second jig arm (32) against or separate and interlock ground clamp
(30) clamp port diminishes or increases.
2. the earth connection point for double bundle conductor according to claim 1, it is characterised in that：Two strut (20)
Rod end is provided with support arm (21), and first jig arm (31) is hinged on support arm (21) and jointed shaft and first, second folder
The jointed shaft of arm (31,32) is parallel, drive mechanism drive strut (20) on support arm (21) present Telescoping and with
One end of second jig arm (32) against or separate.
3. the earth connection point for double bundle conductor according to claim 2, it is characterised in that：Described two first jig arm
(31) first, second connecting rod (33,34), the other end of the head rod (33) in two first jig arm (31) are hinged with
And second the other end of connecting rod (34) be hinged, the two ends jointed shaft of first, second connecting rod (33,34) vertically and with
The jointed shaft of first, second jig arm (31,32) is vertical, and two head rods (33) and two second connecting rods (34) are in integrally water chestnut
Shape supporting structure.
4. the earth connection point for double bundle conductor according to claim 3, it is characterised in that：Two head rod
(33) place of being articulated and connected with two second connecting rods (34) is provided with extension spring (35).
5. the earth connection point for double bundle conductor according to claim 2, it is characterised in that：The support arm (21) is in
Y shaped bracket shape, first jig arm (31) is hinged in the bayonet socket of support arm (21), is set in the opening of the support arm (21)
The rod end for having screwed hole, the support bar (20) stretches out screwed hole, and the rod end of the support bar (20) is provided with threaded connection section
And be threadedly coupled with screwed hole composition.
6. the earth connection point for double bundle conductor according to claim 5, it is characterised in that：Support arm (21) bottom
Portion is provided with the first back-up ring (211), and the shaft of the support bar (20) is provided with the second back-up ring (201), the support bar (20)
On be arranged with spring (22), the two ends of the spring (22) are resisted against on the first back-up ring (211) and the second back-up ring (201).
7. the earth connection point for double bundle conductor according to claim 6, it is characterised in that：Supporter (10) bag
Include and two disk gears (12) are provided with casing (11), the casing (11), the hub of the two disks gear (12) is parallel and rotates
Formula is arranged on casing (11), and support bar (20) rotary type is on casing (11) and rod end is stretched into casing (11), institute
The inserting end for stating support bar (20) is provided with driven gear (23) and is engaged with two disk gears (12), between the two disks gear (12)
It is additionally provided with drive gear (13).
8. the earth connection point for double bundle conductor according to claim 7, it is characterised in that：Outside the casing (11)
Wall is extended with sleeve (111), and the core wheel of the drive gear (13) is provided with shank and stretches into sleeve (111), described to insert
Extension bar constitutes grafting and coordinates with insulating bar.
9. the earth connection point for double bundle conductor according to claim 8, it is characterised in that：Set in the casing (11)
U-bracket plate (112) is equipped with, its both ends open points to two disks between the U-bracket plate (112) is arranged on two disk gears (12)
Gear (12) card, driven gear (23) rotary type is arranged on the bottom land of U-bracket plate (112).
10. the earth connection point for double bundle conductor according to claim 1 to 9 any one, it is characterised in that：It is described
The clamp port end of the second jig arm (32) is provided with inclined-plane (321), and the inclined-plane (321) is inclined away from the clamp port of the first jig arm (31)
Tiltedly arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178734.2A CN106877028B (en) | 2017-03-23 | 2017-03-23 | Ground wire connector for double split conductors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710178734.2A CN106877028B (en) | 2017-03-23 | 2017-03-23 | Ground wire connector for double split conductors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106877028A true CN106877028A (en) | 2017-06-20 |
| CN106877028B CN106877028B (en) | 2023-09-15 |
Family
ID=59171990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710178734.2A Active CN106877028B (en) | 2017-03-23 | 2017-03-23 | Ground wire connector for double split conductors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106877028B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201985270U (en) * | 2011-04-18 | 2011-09-21 | 衡水供电公司 | Conducting wire clamp for connecting ground wires |
| JP2013013173A (en) * | 2011-06-28 | 2013-01-17 | Chugoku Electric Power Co Inc:The | Earth cable mounting tool |
| CN104037508A (en) * | 2014-06-11 | 2014-09-10 | 赵志军 | Clamp for throwing type grounding wire |
| CN104377466A (en) * | 2012-12-18 | 2015-02-25 | 滁州华尊电气科技有限公司 | Engagement and disengagement rotary type short circuit grounding device good in safety |
| CN206595417U (en) * | 2017-03-23 | 2017-10-27 | 国家电网公司 | A kind of earth connection point for double bundle conductor |
-
2017
- 2017-03-23 CN CN201710178734.2A patent/CN106877028B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201985270U (en) * | 2011-04-18 | 2011-09-21 | 衡水供电公司 | Conducting wire clamp for connecting ground wires |
| JP2013013173A (en) * | 2011-06-28 | 2013-01-17 | Chugoku Electric Power Co Inc:The | Earth cable mounting tool |
| CN104377466A (en) * | 2012-12-18 | 2015-02-25 | 滁州华尊电气科技有限公司 | Engagement and disengagement rotary type short circuit grounding device good in safety |
| CN104037508A (en) * | 2014-06-11 | 2014-09-10 | 赵志军 | Clamp for throwing type grounding wire |
| CN206595417U (en) * | 2017-03-23 | 2017-10-27 | 国家电网公司 | A kind of earth connection point for double bundle conductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106877028B (en) | 2023-09-15 |
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