CN104143781A - Electrification installation method and installation tool for live part verification ground ring - Google Patents
Electrification installation method and installation tool for live part verification ground ring Download PDFInfo
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- CN104143781A CN104143781A CN201310173774.XA CN201310173774A CN104143781A CN 104143781 A CN104143781 A CN 104143781A CN 201310173774 A CN201310173774 A CN 201310173774A CN 104143781 A CN104143781 A CN 104143781A
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- grounding ring
- electricity testing
- testing grounding
- insulating bar
- lift
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- 238000009434 installation Methods 0.000 title claims abstract description 22
- 230000005611 electricity Effects 0.000 claims description 112
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007769 metal material Substances 0.000 description 3
- 230000000149 penetrating Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000002493 climbing Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The invention provides an electrification installation method and an installation tool for a live part verification ground ring. The electrification installation method includes the steps that firstly, the live part verification ground ring is lifted to a wire through a lifting tool; secondly, the live part verification ground ring and the wire are connected in a fastened mode through a fastening tool. When the live part verification ground ring is installed, due to the fact that multiple auxiliary electric power tools such as multiple rush repair vehicles are not needed any more, only two workers at most are needed for cooperative work, and resource waste and repair cost are reduced. Due to the fact that the workers do not need to wait for an electrification team to install the live part verification ground ring, rush repair waiting time is shortened, and power supply reliability is improved.
Description
Technical field
The present invention relates to power construction field, more specifically, relate to a kind of charged installation method of electricity testing grounding ring and the erecting tools of electricity testing grounding ring.
Background technology
At present, the phenomenon of overhead conductor insulation is comparatively general, staff (for example: penetration type electricity testing grounding ring installs electricity testing grounding ring, penetration type electricity testing grounding ring can be arranged on wire in the case of not divesting the insulating barrier of wire, does not injure wire simultaneously and can reach required short circuit current) method can not meet the needs of accident maintenance and day-to-day operation maintenance work.
Common staff needs power failure operation when circuit is keeped in repair, then by climbing electric pole or standing on the work of on lifting trolley, dead line being installed electricity testing grounding ring.But there is following problem in the method for this installation electricity testing grounding ring:
1. there is potential safety hazard.Even if having a power failure, electricity testing grounding ring is installed, in the time that circuit does not have ground connection, sometimes also can foldback electricity and induced electricity, thus cause staff to get an electric shock.
2. increased the power failure stand-by period, made troubles to people's production, life.Due to the needs operation that first circuit had a power failure, then the work that electricity testing grounding ring is installed, thereby affect the normal electricity consumption of resident and enterprise.
3. can not add at any time as required electricity testing grounding ring, incur loss through delay the repairing time.According to power construction requirement, adding on the line electricity testing grounding ring needs plan of application to have a power failure, or adds electricity testing grounding ring in the time of comprehensive maintenance, or applies for charged class installation electricity testing grounding ring.But application has a power failure the excessive cycle of electricity testing grounding ring is installed, staff can not process the circuit of needs maintenance in time, has incured loss through delay the repairing time, has caused potential safety hazard.In the time of comprehensive maintenance, just add electricity testing grounding ring, cause circuit operation to have potential safety hazard.
For ensureing staff's personal safety, the work that needs charged class that electricity testing grounding ring is installed when alive circuit is carried out to accident maintenance.But there is following problem in the method that adopts charged class that electricity testing grounding ring is installed:
A. incur loss through delay the repairing time, charged class installation electricity testing grounding ring is subject to the restriction of construction site surrounding environment, is sometimes with electric car can not enter job site, thereby electricity testing grounding ring cannot be installed in time.
B. need several staff's cooperations, need auxiliary power instrument many, cause the wasting of resources.In accident maintenance process, for installing earth connection or install when electricity testing grounding ring on original electricity testing grounding ring, need to use many recovery vehicles simultaneously, several staff's cooperative cooperatings complete repairing work, thereby cause the wasting of resources, have increased the repairing time, have expanded repairing scope, reduced the reliability of power supply.
Summary of the invention
The present invention aims to provide a kind of charged installation method of electricity testing grounding ring and the erecting tools of electricity testing grounding ring, and existing when solving charged installation electricity testing grounding ring in prior art needs several staff's cooperations, needs auxiliary power instrument too much to cause the problem of the wasting of resources.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of charged installation method of electricity testing grounding ring, comprising: step S1: use is lifted instrument electricity testing grounding ring is lifted to wire place; Step S2: use fastened tools that electricity testing grounding ring and wire are fastenedly connected.
Further, step S1 specifically comprises: step S11: electricity testing grounding ring is articulated on the instrument of lifting; Step S12: move and lift instrument, electricity testing grounding ring is lifted to wire place, and electricity testing grounding ring is connected on wire.
Further, step S2 specifically comprises: step S21: fastened tools is engaged with the securing member of electricity testing grounding ring; Step S22: actuating fastened tools makes securing member that electricity testing grounding ring and wire are fastenedly connected; Step S23: continue actuating fastened tools, until securing member is twisted into two parts.
According to another aspect of the present invention, provide a kind of erecting tools of electricity testing grounding ring, having comprised: lift assembly, lift assembly and comprise the first insulating bar and lift stand, lift stand has been arranged on the first end of the first insulating bar; And fastening assembly, fastening assembly comprises the second insulating bar and fastening part, fastening part is arranged on the first end of the second insulating bar.
Further, lift stand comprises: support body, and the first end of support body is connected with the first end of the first insulating bar; With electricity testing grounding ring hook, electricity testing grounding ring hook is arranged on the second end of support body.
Further, support body comprises: fixed part, and fixed part is connected with the first end of the first insulating bar; Two strutting pieces, the first end of each strutting piece is all connected with fixed part, two strutting pieces arrange at intervals, and the second end of each strutting piece is all to protruding away from the direction of the first insulating bar, and the second end of each strutting piece is provided with an electricity testing grounding ring hook.
Further, lift stand is removably connected with the first insulating bar.
Further, fastening part comprises: connecting rod, and the first end of connecting rod is removably connected with the second insulating bar; With the sleeve for coordinating with the securing member of electricity testing grounding ring, sleeve is removably disposed in the second end of connecting rod.
Further, fastening assembly also comprises torque spanner, and torque spanner is removably connected with the second end of the second insulating bar.
Further, erecting tools also comprises connection jig, connects jig and is arranged on and lifts on assembly, and fastening assembly is by connecting jig and lifting assembly and be removably connected.
When staff uses the charged installation method in the present invention that electricity testing grounding ring is installed, first need use to lift instrument electricity testing grounding ring is lifted to wire place, then use fastened tools that electricity testing grounding ring and wire are fastenedly connected.Install when electricity testing grounding ring, owing to no longer needing to use too much auxiliary power instrument, for example many recovery vehicles, at most only need two staff's collaborative works, thus reduced resource waste, reduced maintenance cost.Because staff no longer needs to wait for charged class, the work of electricity testing grounding ring is installed, thereby has shortened the repairing stand-by period, improved the reliability of power supply.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the front view of lifting assembly of the erecting tools in a preferred embodiment in the present invention;
Fig. 2 has schematically shown the left view of Fig. 1;
Fig. 3 has schematically shown the front view of lifting assembly of the erecting tools in another preferred embodiment in the present invention;
Fig. 4 has schematically shown the left view of Fig. 3; And
Fig. 5 has schematically shown the structural representation of the fastening assembly of the erecting tools in the present invention.
Reference numeral in figure: 10, lift assembly; 11, the first insulating bar; The first end of 11a, the first insulating bar; The second end of 11b, the first insulating bar; 12, lift stand; 13, support body; 13a, fixed part; 13b, two strutting pieces; 14, electricity testing grounding ring hook; 20, fastening assembly; 21, the second insulating bar; The first end of 21a, the second insulating bar; The second end of 21b, the second insulating bar; 22, fastening part; 22a, sleeve; 22b, connecting rod; 23, torque spanner; 24, connector.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, provide a kind of charged installation method of electricity testing grounding ring.Charged installation method comprises: step S1: use the instrument of lifting that electricity testing grounding ring (for example: penetration type electricity testing grounding ring) is lifted to wire (for example: the suspended insulated guide wire of 10KV) and locate; Step S2: use fastened tools that electricity testing grounding ring and wire are fastenedly connected.
When staff uses the charged installation method in the present invention that electricity testing grounding ring (can carry out the operation of electrical verification, installing earth connection) is installed, need to wear insulating gloves, owing to no longer needing to use too much auxiliary power instrument, for example: many recovery vehicles, at most only need two staff's collaborative works, thus reduced resource waste, reduced maintenance cost.Because staff no longer needs to wait for charged class, the work of electricity testing grounding ring is installed, thereby has shortened the repairing stand-by period, improved the reliability of power supply.Because staff can add in time electricity testing grounding ring as required in the time rushing to repair and overhaul, thereby improve repairing efficiency.Owing to not needing power failure operation, thereby improve power supply reliability.Charged installation method in the present invention can adapt to different repairing environment, even if the unapproachable repairing of band electric car is on-the-spot, staff also can install the work of electricity testing grounding ring.
Preferably, step S1 specifically comprises: step S11: electricity testing grounding ring is articulated on the instrument of lifting; Step S12: move and lift instrument, electricity testing grounding ring is lifted to wire place, and electricity testing grounding ring is connected on wire.Because electricity testing grounding ring is articulated on the instrument of lifting, thereby be convenient to staff electricity testing grounding ring is placed on the instrument of lifting, and be convenient to electricity testing grounding ring after being connected with wire, the instrument of lifting can unload from electricity testing grounding ring easily, thereby improve the reliability that electricity testing grounding ring is installed.
Preferably, step S2 specifically comprises: step S21: fastened tools is engaged with the securing member of electricity testing grounding ring; Step S22: actuating fastened tools makes securing member that electricity testing grounding ring and wire are fastenedly connected; Step S23: continue actuating fastened tools, until securing member is twisted into two parts.In a preferred embodiment, when staff installs penetration type electricity testing grounding ring on charged wire, (electricity testing grounding ring comprises ring body and penetrating cable clamp to electricity testing grounding ring, penetrating cable clamp and ring body welding, penetrating cable clamp is used for being connected to wire) be connected to wire, now only need to use fastened tools to screw the securing member of electricity testing grounding ring, thereby the pricker puncture of electricity testing grounding ring is entered in the insulated hull of wire, and electricity testing grounding ring is fixedly connected with wire.According to the instructions for use of penetration type electricity testing grounding ring, after securing member screws, staff still needs to use fastened tools to continue to screw securing member, until securing member is twisted into two parts in electricity testing grounding ring inside.
As second aspect of the present invention, provide a kind of erecting tools of electricity testing grounding ring.As shown in Figures 1 to 5, erecting tools comprises: lift assembly 10, lift assembly 10 and comprise the first insulating bar 11 and lift stand 12, lift stand 12 is arranged on the first end 11a of the first insulating bar 11; With fastening assembly 20, fastening assembly 20 comprises the second insulating bar 21 and fastening part 22, and fastening part 22 is arranged on the first end 21a of the second insulating bar 21.Lift assembly 10 owing to being provided with, thereby facilitate staff that electricity testing grounding ring is lifted to wire place.Owing to being provided with fastening assembly 20, thereby staff can carry out fastening to the securing member of the electricity testing grounding ring that is connected to wire place.
Preferably, the length of the first insulating bar 11 and the second insulating bar 21 is greater than 0.7 meter.According to the requirement of power industry live line working, for ensureing the safety of staff's live line working, the length of the first insulating bar 11 and the second insulating bar 21 should not be less than 0.7 meter.In a preferred embodiment, the length of the first insulating bar 11 and the second insulating bar 21 is 1 meter.
Preferably, the first insulating bar 11 and the second insulating bar 21 are insulation restrictor bars.Because insulation restrictor bar meets the construction requirement standard of power industry, thereby use insulation restrictor bar as insulating bar, not only meet instructions for use, and reliability is high, safety guarantee is provided to staff's construction.
Preferably, the first insulating bar 11 comprises at least two first bodies of rod, and at least two first bodies of rod removably connect successively.Further, at least two first bodies of rod are threaded connection.Because at least two first bodies of rod removably connect successively, thereby staff can be according to the demand of job site environment, add or reduce the number of first body of rod, thereby the length of lifting assembly 10 in the present invention can be regulated, increased the scope of application of lifting assembly 10.
Staff uses while lifting assembly 10, the ring body of electricity testing grounding ring should be articulated on lift stand 12, and staff's hand should hold one end away from lift stand 12 of the first insulating bar 11.
Preferably, lift stand 12 comprises: support body 13, and the first end of support body 13 is connected with the first end 11a of the first insulating bar 11; With electricity testing grounding ring hook 14, electricity testing grounding ring hook 14 is arranged on second end (please refer to Fig. 1 to Fig. 4) of support body 13.Owing to being provided with electricity testing grounding ring hook 14, thereby facilitate staff that electricity testing grounding ring is articulated on lift stand 12, and after electricity testing grounding ring is connected with wire, conveniently lift assembly 10 removal from electricity testing grounding ring.
Preferably, support body 13 takes the shape of the letter U or V-arrangement.
Preferably, electricity testing grounding ring hook 14 is that metal material is made.Further, metal material is the core of iron wire or wire.Because electricity testing grounding ring hook 14 is that metal material is made, thereby can not only ensure that electricity testing grounding ring can firmly be articulated on electricity testing grounding ring hook 14, and staff can also be according to the size of electricity testing grounding ring, degree of crook to electricity testing grounding ring hook 14 regulates, thereby make electricity testing grounding ring hook 14 there is good matching with electricity testing grounding ring, improved installation reliability.
Preferably, as shown in Figures 1 to 4, support body 13 comprises: fixed part 13a, and fixed part 13a is connected with the first end 11a of the first insulating bar 11; Two strutting piece 13b, the first end of each strutting piece 13b is all connected with fixed part 13a, two strutting piece 13b arrange at intervals, and the second end of each strutting piece 13b is all to protruding away from the direction of the first insulating bar 11, and the second end of each strutting piece 13b is provided with an electricity testing grounding ring hook 14.Owing to being provided with two strutting piece 13b, and the second end of each strutting piece 13b is provided with electricity testing grounding ring hook 14, thereby electricity testing grounding ring can stably be articulated on support body 13, thereby avoids because electricity testing grounding ring articulates the problem that shakiness comes off.
Preferably, lift stand 12 is removably connected with the first insulating bar 11.Further, lift stand 12 and the first insulating bar 11 are threaded connection.Because lift stand 12 is removably connected with the first insulating bar 11, thereby the first insulating bar 11 has good replaceability, and staff can use the first insulating bar 11 to process the problem of other live line working, thereby has expanded the scope of application of lifting assembly 10.Certainly, the fastening part 22 of fastening assembly 20 also can removably be connected with the second insulating bar 21.
Preferably, fastening part 22 comprises: connecting rod 22b, and the first end of connecting rod 22b is removably connected with the second insulating bar 21; With the sleeve 22a for coordinating with the securing member of electricity testing grounding ring, sleeve 22a is removably disposed in the second end (please refer to Fig. 5) of connecting rod 22b.Further, connecting rod 22b is threaded with the second insulating bar 21.Preferably, sleeve 22a is interior Hexagonal jacket.Because sleeve 22a coordinates with securing member, thereby the size of sleeve 22a is best and the size of securing member is coincide, and facilitates like this staff to screw securing member.Because sleeve 22a is removably connected with connecting rod 22b, thereby facilitate staff to change sleeve 22a, staff can be according to the size of securing member, selects applicable sleeve 22a, thereby improves the dependability of fastening assembly 20.
Preferably, as shown in Figure 5, fastening assembly 20 also comprises connector 24, and one end of connector 24 is threaded with the second insulating bar 21, and the second end of connector 24 is provided with draw-in groove, and the link of torque spanner 23 is provided with the projection with draw-in groove clamping.Because connector 24 is threaded with the second insulating bar 21, thereby facilitate staff that connector 24 is disassembled from the second insulating bar 21, such the second insulating bar 21 can also be used for other live line working, thereby has expanded the scope of application of the second insulating bar 21.Because connector 24 coordinates by clamping with torque spanner 23, thereby staff can disassemble torque spanner 23 and connector 24 easily, torque spanner 23 still can be applied to other operation occasion, thereby further improved the scope of application of torque spanner 23, improve the dependability of fastening assembly 20.
Preferably, as shown in Figure 5, fastening assembly 20 also comprises torque spanner 23, and torque spanner 23 is removably connected with the second end 21b of the second insulating bar 21.Owing to being provided with torque spanner 23, thereby staff can need to set the twisting resistance size of torque spanner 23 according to using, thereby avoiding rotating overexerts in the process of the second insulating bar 21 or too small, improved the dependability of fastening assembly 20.Owing to being provided with torque spanner 23, thereby staff can hold the second insulating bar 21 on the other hand, another hand-held torque spanner 23 of holding is rotated the second insulating bar 21, thus increased the arm of force, reduced the application of force size, reduced labour intensity, improved operating efficiency.
Preferably, the erecting tools in the present invention also comprises connection jig, connects jig and is arranged on and lifts on assembly 10, and fastening assembly 20 is by connecting jig and lifting assembly 10 and be removably connected.In the time that staff uses erecting tools, fastening assembly 20 can be disassembled from connecting jig, fastening assembly 20 is separated with lifting assembly 10, facilitate staff to fastening assembly 20, lift assembly 10 and manipulate.In the time not needing to use erecting tools, fastening assembly 20, by connecting jig and lifting assembly 10 and be connected, so not only facilitates staff to carry erecting tools, also avoids fastening assembly 20 or lifts assembly 10 and lose because of separation.Certainly, connect jig and also can be arranged on fastening assembly 20, lift assembly 10 and be removably connected with fastening assembly 20 by connecting jig.
Preferably, connect jig and be fixedly installed on the first insulating bar 11 of lifting assembly 10, and connection jig can engage with the second insulating bar 21 of fastening assembly 20.
Preferably, connecting jig is U-shaped clip.
In preferred an enforcement, the support body 13 of lifting assembly 10 takes the shape of the letter U; It is 14 one-body molded that support body 13 and electricity testing grounding ring are linked up with; Support body 13 and electricity testing grounding ring hook 14 are that 4.0 iron is thread; Lift stand 12 is removably connected with the first insulating bar 11 by the first outer button screw rod, and the diameter of the first outer button screw rod is 30mm, and the length of the first outer button screw rod is 70mm; The length of the sleeve 22a of fastening assembly 20 is 14mm; Connecting rod 22b is the cylinder of notch cuttype, and connecting rod 22b is made up of loop bar and the second outer button screw rod, and the diameter of loop bar is 15mm, and the length of loop bar is 75mm, and the diameter of the second outer button screw rod is 30mm, and the length of the second outer button screw rod is 50mm; Connector 24 is cylinder, and the internal diameter of one end of connector 24 is 35mm, and the height of connector 24 is 45mm, and the other end of connector 24 offers the square opening that length is 1.25mm.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a charged installation method for electricity testing grounding ring, is characterized in that, comprising:
Step S1: use is lifted instrument electricity testing grounding ring is lifted to wire place;
Step S2: use fastened tools that described electricity testing grounding ring and described wire are fastenedly connected.
2. charged installation method according to claim 1, is characterized in that, described step S1 specifically comprises:
Step S11: lift on instrument described in described electricity testing grounding ring is articulated in;
Step S12: lift instrument described in mobile, described electricity testing grounding ring is lifted to described wire place, and described electricity testing grounding ring is connected on described wire.
3. charged installation method according to claim 1, is characterized in that, described step S2 specifically comprises:
Step S21: described fastened tools is engaged with the securing member of described electricity testing grounding ring;
Step S22: described in actuating, fastened tools makes described securing member that described electricity testing grounding ring and described wire are fastenedly connected;
Step S23: fastened tools described in continuation actuating, until described securing member is twisted into two parts.
4. an erecting tools for electricity testing grounding ring, is characterized in that, comprising:
Lift assembly (10), described in lift assembly (10) and comprise the first insulating bar (11) and lift stand (12), described lift stand (12) is arranged on the first end (11a) of described the first insulating bar (11); With
Fastening assembly (20), described fastening assembly (20) comprises the second insulating bar (21) and fastening part (22), described fastening part (22) are arranged on the first end (21a) of described the second insulating bar (21).
5. erecting tools according to claim 4, is characterized in that, described lift stand (12) comprising:
Support body (13), the first end of described support body (13) is connected with the first end (11a) of described the first insulating bar (11); With
Electricity testing grounding ring hook (14), described electricity testing grounding ring hook (14) is arranged on the second end of described support body (13).
6. erecting tools according to claim 5, is characterized in that, described support body (13) comprising:
Fixed part (13a), described fixed part (13a) is connected with the first end (11a) of described the first insulating bar (11);
Two strutting pieces (13b), the first end of each described strutting piece (13b) is all connected with described fixed part (13a), two described strutting pieces (13b) arrange at intervals, and the second end of each described strutting piece (13b) is all to protruding away from the direction of described the first insulating bar (11), and the second end of each described strutting piece (13b) is provided with a described electricity testing grounding ring hook (14).
7. erecting tools according to claim 4, is characterized in that, described lift stand (12) is removably connected with described the first insulating bar (11).
8. erecting tools according to claim 4, is characterized in that, described fastening part (22) comprising:
Connecting rod (22b), the first end of described connecting rod (22b) is removably connected with described the second insulating bar (21); With
For the sleeve (22a) coordinating with the securing member of described electricity testing grounding ring, described sleeve (22a) is removably disposed in the second end of described connecting rod (22b).
9. erecting tools according to claim 4, is characterized in that, described fastening assembly (20) also comprises torque spanner (23), and described torque spanner (23) is removably connected with second end (21b) of described the second insulating bar (21).
10. erecting tools according to claim 4, it is characterized in that, described erecting tools also comprises connection jig, lifts assembly (10) upper described in described connection jig is arranged on, described fastening assembly (20) by described connection jig with described in lift assembly (10) and be removably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173774.XA CN104143781B (en) | 2013-05-10 | 2013-05-10 | The electrification installation method of electricity testing grounding ring and the installation tool of electricity testing grounding ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173774.XA CN104143781B (en) | 2013-05-10 | 2013-05-10 | The electrification installation method of electricity testing grounding ring and the installation tool of electricity testing grounding ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104143781A true CN104143781A (en) | 2014-11-12 |
| CN104143781B CN104143781B (en) | 2017-08-01 |
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| CN201310173774.XA Active CN104143781B (en) | 2013-05-10 | 2013-05-10 | The electrification installation method of electricity testing grounding ring and the installation tool of electricity testing grounding ring |
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| CN (1) | CN104143781B (en) |
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| CN105826870A (en) * | 2016-06-08 | 2016-08-03 | 国网辽宁省电力有限公司电力科学研究院 | Wedge-shaped diversion line ground potential live installation combination tool |
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| Publication number | Publication date |
|---|---|
| CN104143781B (en) | 2017-08-01 |
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