CN202602171U - A tool for power-on replacing multi-loop double split conductor insulator of 220kV line - Google Patents

A tool for power-on replacing multi-loop double split conductor insulator of 220kV line Download PDF

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Publication number
CN202602171U
CN202602171U CN 201220130411 CN201220130411U CN202602171U CN 202602171 U CN202602171 U CN 202602171U CN 201220130411 CN201220130411 CN 201220130411 CN 201220130411 U CN201220130411 U CN 201220130411U CN 202602171 U CN202602171 U CN 202602171U
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CN
China
Prior art keywords
arm
card
yoke plate
screw mandrel
tie
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.)
Active
Application number
CN 201220130411
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Chinese (zh)
Inventor
王密
罗金林
张尧
夏伟
肖运军
万彭
丁文晖
唐名峰
肖云
易嘉
袁海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuzhou Power Bureau Hunan Electric Power Co
State Grid Corp of China SGCC
Original Assignee
Zhuzhou Power Bureau Hunan Electric Power Co
State Grid Corp of China SGCC
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Application filed by Zhuzhou Power Bureau Hunan Electric Power Co, State Grid Corp of China SGCC filed Critical Zhuzhou Power Bureau Hunan Electric Power Co
Priority to CN 201220130411 priority Critical patent/CN202602171U/en
Application granted granted Critical
Publication of CN202602171U publication Critical patent/CN202602171U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a tool for power-on replacing multi-loop double split conductor insulator of 220kV line. The tool comprises corss arm clamps, a link plate clamp, a clamp hook, two screw rod assemblies, and two insulation pulling plates. One end of the corss arm clamp is fixedly connected with a corss arm, while the other end of the corss arm clamp is connected with the link plate clamp through the screw rod assemblies and the insulation pulling plates. Each screw rod assembly comprises a screw rod and a knob, while the screw rod passes through a corss arm clamp. The knob is on the upper portion of the screw rod, while the lower portion of the screw rod is connected with the insulation pulling plates. The link plate clamp is equipped with a groove for embedding a link plate in. One end of the link plate clamp is connected with an insulation pulling plate, while the other end of the link plate clamp is connected with the other insulation pulling plate through the clamp hook. The tool provided in the utility model is capable of successfully replacing insulators of middle and upper double split conductors of a tower in a multiloop of a 220Kv line. The tool with simple using method and easy manipulation guarantees safe operation of operating personnel.

Description

Charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument
Technical field
The utility model relates to charged for replacement insulator field, is specifically related to a kind of instrument of charged for replacement 220kV circuit multiloop double bundle conductor insulator.
Background technology
136,1792 kilometers in existing 110kV of Zhuzhou power transmission network and above circuit, wherein the 220kV circuit is 30,706 kilometers, joint uses 20 in multiloop 220kV circuit, amounts to 467 kilometers.Annual because of thunderbolt, self-destruction, detect, surplus the insulator that needs on the circuit to change is about 30, wherein, live line working is changed about 20.Live line working can reduce interruption duration, promotes amount of power supply, improves electric network reliability.But after 08 year ice damage; The area, Zhuzhou is newly-built, more than 10 of reconstruction 110kV-220kV transmission line, kilometer surplus in the of 400; Wherein increased a large amount of novel reinforced shaft towers and multiloop iron tower, tools for live working in the past can not satisfy the requirement of on novel shaft tower, carrying out live line working.
The special towers such as tower, the reinforced iron tower of wineglass, reinforced cross-arm structure of for example pulling, the cross-arm jig that does not all adapt to double bundle conductor, is not easy to carry out the earth potential live operation simultaneously.Especially many times twin bundled lines of bar altogether, existing does not have earth potential live power tool targetedly, in, go up the phase insulator because the equal potential working personnel are difficult to get into equipotential and carry out operation, so it is maximum to change difficulty.
The live line working work of changing insulator on 110kV-220kV multiloop iron tower and the double bundle conductor at present mainly takes the mode of equal potential working to carry out.The equal potential working method, working strength is big, personnel are many, complex procedures, and electric field radiation and job safety that the equal potential working personnel bear are very risky.And to double loop bar circuit altogether, wire pitch is little, and charging equipment is densely distributed, and safe distance is too small and be not easy to carry out equal potential working with operation gap.In addition, in the insulator charged replacing operation process of double bundle conductor,, can't fix because yoke plate is uncontrolled afterwards with the insulator disengaging.
Therefore, the power tool of charged for replacement multiloop tower insulation that research and development make new advances, for the difficult point project of capturing live line working, advance the live line working cause development, safeguard that the safe and stable operation of electrical network has great significance.
The utility model content
The utility model solved lack in the charged for replacement multiloop shaft tower double bundle conductor insulator in the prior art that tools for live working, yoke plate targetedly can't be fixed and the operational method working strength is big, complex procedures, technical problem that operating personnel's security risk is big.
The utility model provides a kind of charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument, comprises cross-arm card, yoke plate card, jig hook, two screw components and two insulation arm-ties;
Said cross-arm card one end is used for being fixedly connected with the cross-arm of shaft tower, and the other end connects with the yoke plate card through screw component, insulation arm-tie;
Said screw component comprises screw mandrel and handle; Said screw mandrel is arranged on the cross-arm card, and handle is positioned at the upper end of screw mandrel, and the bottom of screw mandrel connects with the insulation arm-tie;
Said yoke plate card is provided with the groove that is used for insertion wire side yoke plate, and an end of yoke plate card connects with an insulation arm-tie, and the other end of yoke plate card connects with another insulation arm-tie through the jig hook.
The instrument that the utility model provides; After yoke plate and insulator disengaging, can be fixed through the yoke plate card; Can change in the 220kV circuit multiloop, go up phase double bundle conductor insulator smoothly; Be applicable to the cross-arm of the special turriform of various complicacies, for example cement pole cross-arm, sliding door tower cross-arm, reinforced iron tower cross-arm.In addition, through the earth potential live operation, method is simple, processing ease, but also can avoid the risk of equal potential working, guarantees operating personnel's safety work.
Description of drawings
Fig. 1 is the structural representation of the charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument that provides of the utility model embodiment one.
Fig. 2 is the structural representation of cross-arm card among Fig. 1.
Fig. 3 is the structural representation of yoke plate card among Fig. 1.
Fig. 4 be among Fig. 1 the jig hook with the insulation arm-tie structural representation.
Fig. 5 is the structural representation of the charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument that provides of the utility model embodiment two.
Fig. 6 is the structural representation of cross-arm card among Fig. 5.
Among the figure, 1---screw component, 2---the cross-arm card, 3---the insulation arm-tie, 4---the yoke plate card, 5---the jig hook; 11---screw mandrel, 12---handle; 21---the cross-arm fixed part, 22---the screw mandrel fixed part, 23---main body, 24---cushion block, 220---recessed groove; 31---blocked hole; 40---groove, 41---single deck tape-recorder I, 42---single deck tape-recorder II; 50---the hook body, 51---the ripple ring assemblies, 52---ripple ring handle, 501---hook portion, 502---bar portion.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Embodiment one
As shown in Figure 1, present embodiment provides a kind of charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument, comprises cross-arm card 2, yoke plate card 4, jig hook 5, two screw components 1 and two insulation arm-ties 3.
Said cross-arm card 2 one ends are used for being fixedly connected with the cross-arm of shaft tower, and the other end connects with yoke plate card 4 through screw component 1, insulation arm-tie 3.
In the present embodiment, the structure of said cross-arm card 2 is as shown in Figure 2, comprises the cross-arm fixed part 21 and screw mandrel fixed part 22 of integrative-structure.As shown in Figure 2, said cross-arm fixed part 21 is L shaped bending structure, is used to hang on cross-arm.In the utility model, in actual use, hang on cross-arm fixed part 21 on the cross-arm after, also need adopt bolt further to be locked, prevent that the stressed back of cross-arm card from reversing, come off from cross-arm.As shown in Figure 2, said screw mandrel fixed part 22 is provided with recessed groove 220.The bottom of this recessed groove 220 is provided with screw hole, is used to wear screw mandrel 11.In the present embodiment, the number of said cross-arm card 2 is two.Therefore, the screw hole through being provided with on two cross-arm cards 2 can wear two screw mandrels 11.
The structure of said screw component 1 is as shown in Figure 1, comprises screw mandrel 11 and handle 12.Said screw mandrel 11 is arranged in the screw hole of cross-arm card 2, and the two ends of screw mandrel 11 all extend to cross-arm card 2 outsides.Wherein, handle 12 is positioned at the upper end of screw mandrel 11, promptly is positioned at the top of cross-arm card 2.The bottom of screw mandrel 11 connects with insulation arm-tie 3.Through rotating handles 12, can control screw mandrel 11 and move up and down, thereby regulate the distance between yoke plate card 4 and the cross-arm card 2, realization is to the lifting of lead or put down.
The structure of said yoke plate card 4 is as shown in Figure 3, and yoke plate card 4 is provided with the groove 40 that is used for insertion wire side yoke plate.As shown in Figure 1, an end of yoke plate card 4 connects with an insulation arm-tie 3, and the other end of yoke plate card 4 connects with another insulation arm-tie 3 through jig hook 5.Said yoke plate card 4 can be used for fixing lead side yoke plate through groove 40 on the one hand, also can be used for lifting by crane double bundle conductor on the other hand, thereby lead is promoted, and makes insulator no longer bear the gravity of lead, thus detachable insulator and it is changed.
As shown in Figure 3, said yoke plate card 4 is made up of two triangle single deck tape-recorders (being single deck tape-recorder I 41 and single deck tape-recorder II 42).Concrete, the bottom of said yoke plate card 4 through single deck tape-recorder I 41 and single deck tape-recorder II 42 is fixedly connected and forms, and between the top of single deck tape-recorder I 41 and single deck tape-recorder II 42, has the gap, promptly said groove 40 simultaneously.Groove 40 is used for fixing yoke plate, therefore after yoke plate and insulator disengaging, can yoke plate be fixed through the gap on the yoke plate card 4.As shown in Figure 3, single deck tape-recorder I 41 is provided with through hole away from the end of single deck tape-recorder II 42.As shown in Figure 1, thereby being used to wear bolt, this through hole on the single deck tape-recorder I 41 is fixedly connected with an insulation arm-tie 3.Also be provided with through hole on the end of single deck tape-recorder II 42 away from single deck tape-recorder I 41.As shown in Figure 1, this through hole on the single deck tape-recorder II 42 is used to wear bolt and connects with jig hook 5.
As shown in Figure 4, said jig hook 5 comprises hook body 50 ripple ring assemblies 51.Said hook body 50 comprises hook portion 501 and bar portion 502.As shown in Figure 1, hook portion 501 is used for connecting with an end of yoke plate card 4.As shown in Figure 1, connect through ripple ring assemblies 51 activities between bar portion 502 and the insulation arm-tie 3.
The ripple ring that said ripple ring assemblies 51 comprises built-in stage clip and connects with stage clip.One end of ripple ring is provided with ripple ring handle 52, and the other end connects with insulation arm-tie 3.Particularly, as shown in Figure 4, insulation arm-tie 3 is provided with a plurality of blocked holes 31.Said ripple ring is arranged in the blocked hole 31 of insulation arm-tie 3, thereby the arm-tie 3 that will insulate connects and fixes with jig hook 5.Through tension ripple ring handle 52; Stage clip shrinks, and the ripple ring leaves the blocked hole 31 on the insulation board 3, and can move up and down jig hook 5 to correct position this moment; Unclamp ripple ring handle 52 then; Stage clip automatically resets, and ripple ring 51 is pushed in the blocked hole 31 of correspondence position on the insulation arm-tie 3, and the arm-tie 3 that can will insulate connects and fixes with jig hook 5.In the utility model, through pulling ripple ring handle 52 the ripple ring is connected in the blocked holes 31 different on the insulation arm-tie 3, i.e. distance between scalable insulation arm-tie 3 and the yoke plate card 4.
As shown in Figure 1, in the utility model, the plane at two insulation arm-tie 4 places is vertical each other.Therefore the direction of through hole that is used to wear bolt on the yoke plate card 4 (single deck tape-recorder I 41 and single deck tape-recorder II 42) is also mutual vertical.
In the utility model, said instrument also comprises the insulating bar that is used to extract the conductor wire end spring catch.
Adopt the method for the tool belt charged renewal 220kV circuit multiloop double bundle conductor insulator of present embodiment, may further comprise the steps:
A, step on bar: the earth potential working personnel carry lifting rope and climb up shaft tower to cross-arm side, hang up properly lifting rope; The earth potential operating personnel climb up shaft tower to lead side;
B, erecting tools: ground cooperates personnel that two 2 on cross-arm cards with structure shown in Figure 2 are winched to the cross-arm side; The earth potential working personnel are positioned over the cross-arm fixed part 21 of two cross-arm cards 2 respectively on the cross-arm angle steel of shaft tower, and bolt on itself and cross-arm angle steel are fixedly connected; Ground cooperates personnel on the ground the bottom of the screw mandrel 11 of two screw components 1 to be connected with the upper end of two insulation arm-ties 3 respectively; Bottom with one of them insulation arm-tie 3 directly connects with an end of yoke plate card 4 then; The other end of yoke plate card 4 connects with the hook portion 501 of jig hook 5; Then the bar portion 502 of jig hook 5 is insulated connecting of arm-tie 3 with another through ripple ring assemblies 51; Move up and down jig hook 5 then through tension ripple ring handle 52 and regulate another insulation arm-tie 3, unclamp ripple ring handle 52 then jig hook 5 is connected and fixed through ripple ring and another insulation arm-tie 3, form U-shaped instrument half adult to appropriate length; Then this U-shaped instrument half adult is risen and winch to the cross-arm side; The earth potential working personnel are with aforementioned U-shaped instrument half adult and two cross-arm card 2 fixed installations; Being specially screw mandrel 11 with two screw components 1 is arranged in respectively in the screw hole of recessed groove 220 bottoms on the screw mandrel fixed part 22 of two cross-arm cards 2; Handle 12 is positioned at the upper end of screw mandrel 11, promptly lays respectively at the top of two cross-arm cards 2, lead side yoke plate is clamped in the groove 40 of yoke plate card 4;
C, tighten up screw mandrel: the earth potential working personnel shake the handle 12 of two screw components 1 simultaneously, tighten up screw mandrel 11, promote leads through yoke plate card 4, make insulator to be replaced not bear the gravity of lead;
D, replacing insulator: the earth potential operating personnel adopt insulating bar to extract the conductor wire end spring catch, and the earth potential working personnel fasten insulator to be replaced with lifting rope, extract cross-arm side spring catch then, adopt lifting rope to put to the bottom surface in insulator to be replaced; Ground cooperation personnel lift by crane new insulator to cross-arm side, and the earth potential working personnel install cross-arm side spring catch, and new insulator and cross-arm are fixed, and the earth potential operating personnel install lead side spring catch, with new insulator and lead fixed;
E, removal tool: the earth potential working personnel remove all instruments successively, adopt lifting rope to put to ground, carry the lifting rope lower beam then, and operation is accomplished.
Embodiment two
The charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument that present embodiment provides has structure shown in Figure 5.In the instrument that present embodiment provides, identical among the structure of yoke plate card 4, jig hook 5 and two screw components 1 and two insulation arm-ties 3 and the embodiment one, repeat no more here.
In the present embodiment, the number of said cross-arm card 2 is one, and the structure of the cross-arm card that its structure and embodiment are a kind of is different.Particularly, as shown in Figure 6 in the present embodiment, said crosspiece card 2 comprises the main body 23 and cushion block 24 that is fixedly connected.As shown in Figure 6, two cushion blocks 24 all are positioned at the below of main body 23, are used to carry main body 23.Connect (not shown in the accompanying drawing) through bolt between main body 23 and the cushion block 24.The crosspiece card 2 of present embodiment in use is positioned over the cushion block 24 of said cross-arm card 2 on the cross-arm, promptly keeps main body 23 to be positioned at the top of cross-arm.
As shown in Figure 6, the two ends of said main body 23 are equipped with the screw mandrel fixed part, and the structure of the screw mandrel fixed part on this screw mandrel fixed part and a kind of cross-arm card of embodiment is identical.Particularly, in the present embodiment, the screw mandrel fixed part is provided with recessed groove, and the recessed groove bottom is provided with screw hole, is used to wear screw mandrel 11.Because main body is provided with two screw mandrel fixed parts in the present embodiment, therefore can realize and the connecting of two screw components 1 through a cross-arm card 2, promptly on the screw mandrel fixed part at the two ends of main body 23, wear screw mandrel 11 respectively.
Adopt the method for the tool belt charged renewal 220kV circuit multiloop double bundle conductor insulator of present embodiment,, specifically comprise with roughly the same among the embodiment one:
A, step on bar: the earth potential working personnel carry lifting rope and climb up shaft tower to cross-arm side, hang up properly lifting rope; The earth potential operating personnel climb up shaft tower to lead side;
B, erecting tools: ground cooperates personnel that 2 on a cross-arm card with structure shown in Figure 6 is winched to the cross-arm side, and the earth potential working personnel are positioned over the cushion block 24 of cross-arm card 2 on the cross-arm wrapper sheet of shaft tower; Ground cooperates personnel on the ground the bottom of the screw mandrel 11 of two screw components 1 to be connected with the upper end of two insulation arm-ties 3 respectively; Bottom with one of them insulation arm-tie 3 directly connects with an end of yoke plate card 4 then; The other end of yoke plate card 4 connects with the hook portion 501 of jig hook 5; Bar portion 502 with jig hook 5 connects with another insulation arm-tie 3 through ripple ring assemblies 51 then; Move up and down jig hook 5 then through tension ripple ring handle 52 and regulate another insulation arm-tie 3, unclamp ripple ring handle 52 then jig hook 5 is connected and fixed through ripple ring and another insulation arm-tie 3, form U-shaped instrument half adult to appropriate length; Then this U-shaped instrument half adult is risen and winch to the cross-arm side; The earth potential working personnel are with aforementioned U-shaped instrument half adult and 2 fixed installations of cross-arm card; Being specially screw mandrel 11 with two screw components 1 is arranged in respectively in the screw hole of screw mandrel fixed part recessed groove bottom at main body 23 two ends on the cross-arm card 2; Handle 12 is positioned at the upper end of screw mandrel 11, promptly is positioned at the top of cross-arm card 2, lead side yoke plate is clamped in the groove 40 of yoke plate card 4;
C, tighten up screw mandrel: the earth potential working personnel shake the handle 12 of two screw components 1 simultaneously, tighten up screw mandrel 11, promote leads through yoke plate card 4, make insulator to be replaced not bear the gravity of lead;
D, replacing insulator: the earth potential operating personnel adopt insulating bar to extract the conductor wire end spring catch, and the earth potential working personnel fasten insulator to be replaced with lifting rope, extract cross-arm side spring catch then, adopt lifting rope to put to the bottom surface in insulator to be replaced; Ground cooperation personnel lift by crane new insulator to cross-arm side, and the earth potential working personnel install cross-arm side spring catch, and new insulator and cross-arm are fixed, and the earth potential operating personnel install lead side spring catch, with new insulator and lead fixed;
E, removal tool: the earth potential working personnel remove all instruments successively, adopt lifting rope to put to ground, carry the lifting rope lower beam then, and operation is accomplished.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.

Claims (8)

1. a charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument is characterized in that, said instrument comprises cross-arm card, yoke plate card, jig hook, two screw components and two insulation arm-ties; Said cross-arm card one end is used for being fixedly connected with the cross-arm of shaft tower, and the other end connects with the yoke plate card through screw component, insulation arm-tie; Said screw component comprises screw mandrel and handle; Said screw mandrel is arranged on the cross-arm card, and handle is positioned at the upper end of screw mandrel, and the bottom of screw mandrel connects with the insulation arm-tie; Said yoke plate card is provided with the groove that is used for insertion wire side yoke plate, and an end of yoke plate card connects with an insulation arm-tie, and the other end of yoke plate card connects with another insulation arm-tie through the jig hook.
2. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 1 is characterized in that the number of said cross-arm card is two, wears a screw mandrel on each cross-arm card respectively; Said cross-arm card comprises the cross-arm fixed part and the screw mandrel fixed part of integrative-structure; Said cross-arm fixed part is L shaped bending structure, is used to hang on cross-arm; Said screw mandrel fixed part is provided with recessed groove, and the recessed groove bottom is provided with screw hole.
3. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 1 is characterized in that the number of said cross-arm card is one; Said crosspiece card comprises main body and two cushion blocks that are fixedly connected; Two cushion blocks all are positioned at the below of main body, are used to carry main body; The two ends of main body are equipped with the screw mandrel fixed part, and said screw mandrel fixed part is provided with recessed groove, and the recessed groove bottom is provided with screw hole.
4. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 1; It is characterized in that; Said yoke plate card is fixedly connected through the bottom by two triangle single deck tape-recorders and forms, and has the gap that is used for insertion wire side yoke plate between the top of two triangle single deck tape-recorders; Be equipped with through hole on the end of two triangle single deck tape-recorders away from the gap, one of them through hole is fixedly connected with the insulation arm-tie through wearing bolt, and another through hole is hooked together and connects through wearing bolt and jig.
5. according to claim 1 or 4 described charged for replacement 220kV circuit multiloop double bundle conductor insulator instruments, it is characterized in that said jig hook comprises hook body and ripple ring assemblies; Said hook body comprises hook portion and bar portion; Hook portion is used for connecting with an end of yoke plate card, connects through ripple ring assemblies activity between bar portion and the insulation arm-tie.
6. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 5 is characterized in that, the ripple ring that said ripple ring assemblies comprises built-in stage clip and connects with stage clip, and the other end of ripple ring connects with the insulation arm-tie.
7. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 5 is characterized in that, the plane at two insulation arm-tie places is vertical each other.
8. charged for replacement 220kV circuit multiloop double bundle conductor insulator instrument according to claim 1 is characterized in that said instrument also comprises the insulating bar that is used to extract the conductor wire end spring catch.
CN 201220130411 2012-03-31 2012-03-31 A tool for power-on replacing multi-loop double split conductor insulator of 220kV line Active CN202602171U (en)

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Application Number Priority Date Filing Date Title
CN 201220130411 CN202602171U (en) 2012-03-31 2012-03-31 A tool for power-on replacing multi-loop double split conductor insulator of 220kV line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220130411 CN202602171U (en) 2012-03-31 2012-03-31 A tool for power-on replacing multi-loop double split conductor insulator of 220kV line

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102623927A (en) * 2012-03-31 2012-08-01 湖南省电力公司株洲电业局 Tool and method for charged replacement of multi-circuit double-split conductor insulators of 200kV line
CN103401182A (en) * 2013-07-22 2013-11-20 国家电网公司 Double bundle conductor connection plate carrying device
CN103915783A (en) * 2014-04-19 2014-07-09 国家电网公司 Universal type suspension wire clamp for 66 kV-220 kV tip cross arm

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102623927A (en) * 2012-03-31 2012-08-01 湖南省电力公司株洲电业局 Tool and method for charged replacement of multi-circuit double-split conductor insulators of 200kV line
CN102623927B (en) * 2012-03-31 2015-09-16 湖南省电力公司株洲电业局 Charged for replacement 220kV circuit multiloop double bundle conductor insulator tool and method
CN103401182A (en) * 2013-07-22 2013-11-20 国家电网公司 Double bundle conductor connection plate carrying device
CN103915783A (en) * 2014-04-19 2014-07-09 国家电网公司 Universal type suspension wire clamp for 66 kV-220 kV tip cross arm

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