CN205159908U - A kind of back-up protection wire clamp - Google Patents

A kind of back-up protection wire clamp Download PDF

Info

Publication number
CN205159908U
CN205159908U CN201520950839.1U CN201520950839U CN205159908U CN 205159908 U CN205159908 U CN 205159908U CN 201520950839 U CN201520950839 U CN 201520950839U CN 205159908 U CN205159908 U CN 205159908U
Authority
CN
China
Prior art keywords
spring
pin
pull ring
main board
groove
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
CN201520950839.1U
Other languages
Chinese (zh)
Inventor
奚红娟
周渠
黄会贤
周德波
程万
邹平
袁兴旺
彭子耀
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.)
State Grid Corp of China SGCC
Southwest University
Changshou Power Supply Branch of State Grid Chongqing Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Southwest University
Changshou Power Supply Branch of State Grid Chongqing Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Southwest University, Changshou Power Supply Branch of State Grid Chongqing Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201520950839.1U priority Critical patent/CN205159908U/en
Application granted granted Critical
Publication of CN205159908U publication Critical patent/CN205159908U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Insulators (AREA)

Abstract

The utility model relates to a backup protection fixing -line device, including mainboard 1, win 2 in succession, single arm -drag 3 keeps silent 4 on, keep silent 5 down, the 9, the 5th round pin axle 10 on first round pin axle 6, second round pin axle 7, third round pin axle 8, the fourth round pin axle, insulator spindle link up with 11, pull rod 13, spring pin 14, spring pull ring 15, the spring pin sets up on the mainboard, the spring pin is not when receiving external force, and the one end of spring pin stretches into in the circular arc leads to groove 12, the terminal of spring pin is connected with the spring pull ring, the spring pull ring is used for pulling out the circular arc with the spring pin and leads to the groove. The utility model discloses set up insulating bar couple, spring pin and spring pull ring spare, can effectively protect and operate potential safety hazards such as transmission pressure tension releasing that the reason causes and slippage by multiplexer utensil or personnel, guaranteed the electrified smooth implementation of changing transmission line dead end insulator work, reduced fortune dimension intensity of labour, improved live overhaul efficiency, the operation of guarantee electric power system safe and reliable.

Description

一种后备保护卡线器A kind of back-up protection wire clamp

技术领域 technical field

本实用新型属于电力检修带电作业工具技术领域,具体涉及一种地电位用带电更换输电线路耐张绝缘子后备保护卡线器。 The utility model belongs to the technical field of live working tools for electric power maintenance, and in particular relates to a back-up protection clamping device for live replacement of tension insulators of transmission lines for ground potential.

背景技术 Background technique

220kV及以上等级高压输电线路耐张塔大多采用耐张绝缘子串型式,在运行中需对污秽、破损的绝缘子进行维护、更换。为进一步满足主干网络的供电可靠性要求,积极推行国家电网公司状态检修策略,有效提高线路设备可用率,在高压输电线路检修工作中需尽可能地采用带电作业方式。目前国内带电更换输电线路耐张绝缘子串主要采用托瓶架辅助更换法,无后备保护,在采用托瓶架辅助法更换输电线路耐张绝缘子串时,由于工器具或人员操作等原因易造成松线及导线滑脱等安全隐患,给电网带来极大的安全风险。因此,研制一种后备保护紧线器是高压输电线路带电更换耐张绝缘子串检修工作亟待解决的问题。 Most of the tension towers of 220kV and above high-voltage transmission lines adopt the type of tension insulator strings, and dirty and damaged insulators need to be maintained and replaced during operation. In order to further meet the power supply reliability requirements of the backbone network, the State Grid Corporation of China actively implements the state-of-the-art maintenance strategy to effectively improve the availability of line equipment. It is necessary to use live work as much as possible in the maintenance of high-voltage transmission lines. At present, domestic live replacement of tension insulator strings of transmission lines mainly adopts the auxiliary replacement method of bottle racks, without backup protection. When using the auxiliary method of bottle racks to replace strain insulator strings of transmission lines, it is easy to cause loosening due to tools or personnel operations. Potential safety hazards such as wire and wire slippage have brought great safety risks to the power grid. Therefore, the development of a backup protection tensioner is an urgent problem to be solved in the maintenance work of live replacement of tension insulator strings on high-voltage transmission lines.

实用新型内容 Utility model content

有鉴于此,本实用新型的目的在于提供一种地电位用带电更换输电线路耐张绝缘子后备保护卡线器 In view of this, the purpose of this utility model is to provide a backup protection clamp for ground potential replacement of tension insulators of transmission lines

为达到上述目的,本实用新型提供如下技术方案: In order to achieve the above object, the utility model provides the following technical solutions:

一种后备保护卡线器,包括主板1、连扳2、拉臂3、上钳口4、下钳口5、第一销轴6、第二销轴7、第三销轴8、第四销轴9、第五销轴10、绝缘杆挂钩11、拉杆13、弹簧挡杆14、弹簧拉环15,所述主板下部设置有下钳口,所述下钳口的一端、连扳的一端通过第一销轴铰接于主板上;所述连扳的另一端通过第二销轴与拉臂的一端铰接,所述绝缘杆挂钩设置于第二销轴与拉臂的铰接处;所述主板上设置有圆弧通槽,所述上钳口的左端通过第三销轴与连板铰接,所述上钳口的另一端通过第四销轴可滑动的卡接于圆弧通槽内,所述主板上远离第一销轴的一端设置有横向通槽,所述拉臂的另一端通过第五销轴可滑动的卡接于横向通槽内,所述弹簧挡杆设置于主板上,所述弹簧挡杆在不受外力时,弹簧挡杆的一端伸入到圆弧通槽12内,所述弹簧挡杆的末端与弹簧拉环连接,所述弹簧拉环用于将弹簧挡杆拉出圆弧通槽。 A kind of back-up protective wire gripping device, comprising a main board 1, a pulley 2, a pull arm 3, an upper jaw 4, a lower jaw 5, a first pin shaft 6, a second pin shaft 7, a third pin shaft 8, a fourth pin shaft Pin shaft 9, the fifth pin shaft 10, insulating rod hook 11, pull rod 13, spring retaining rod 14, spring pull ring 15, the lower part of the main board is provided with a lower jaw, one end of the lower jaw and one end of the connecting lever It is hinged on the main board through the first pin shaft; the other end of the connecting lever is hinged with one end of the pull arm through the second pin shaft, and the insulating rod hook is arranged at the hinge of the second pin shaft and the pull arm; the main board There is an arc-shaped slot on the top, the left end of the upper jaw is hinged to the connecting plate through the third pin, and the other end of the upper jaw is slidably engaged in the arc slot through the fourth pin. The end of the main board away from the first pin shaft is provided with a transverse through slot, the other end of the pull arm is slidably engaged in the transverse through slot through the fifth pin shaft, the spring stopper is arranged on the main board, When the spring stopper is not subject to external force, one end of the spring stopper extends into the circular arc through groove 12, and the end of the spring stopper is connected with the spring pull ring, and the spring pullback is used to hold the spring stopper Pull out the arc slot.

本实用新型的有益效果在于: The beneficial effects of the utility model are:

本实用新型结合现有的停电作业更换输电线路耐张绝缘子后备保护卡线器,对其进行改进,设置了绝缘操作杆挂钩件、弹簧挡杆及弹簧拉环件,能够有效保护由工器具或人员操作原因引起的输电导线松线及滑脱等安全隐患,保证带电更换输电线路耐张绝缘子工作的顺利实施,降低运维劳动强度,提高带电检修效率,保障电力系统安全可靠运行。 The utility model is combined with the existing power outage operation to replace the tension insulator backup protection clamp device of the transmission line, improves it, and sets the insulating operating rod hook part, the spring stopper rod and the spring pull ring part, which can effectively protect the tool or Potential safety hazards such as loose wires and slippage of transmission wires caused by personnel operations, ensure the smooth implementation of live replacement of tension insulators on transmission lines, reduce labor intensity of operation and maintenance, improve live maintenance efficiency, and ensure safe and reliable operation of power systems.

附图说明 Description of drawings

为了使本实用新型的目的、技术方案和优点更加清楚,下面将结合附图对本实用新型作进一步的详细描述,其中: In order to make the purpose, technical solutions and advantages of the present utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings, wherein:

图1为本实用新型结构简图; Fig. 1 is a schematic diagram of the structure of the utility model;

图2为本实用新型在使用时弹簧挡杆的位置图;其中(a)表示卡线器上、下钳口张开到最大位置,销轴9位于主板圆弧通槽右上方位置,弹簧挡杆处于自由松弛状态,弹簧挡杆挡住销轴;(b)表示输电导线穿过卡线器上、下钳口,拉紧卡线器主板弹簧拉环绳索,销轴9沿着主板圆弧通槽向下滑动,直至上、下钳口与输电导线咬合紧密;(c)表示松开卡线器主板弹簧拉环绳索,销轴9沿着主板圆弧通槽向下滑动至某一位置,直至上、下钳口与输电导线咬合紧密,完成带电更换输电线路耐张绝缘子后备保护; Fig. 2 is the position diagram of the spring stop lever when the utility model is in use; wherein (a) shows that the upper and lower jaws of the wire gripper are opened to the maximum position, the pin shaft 9 is located at the upper right position of the circular arc slot of the main board, and the spring stop The rod is in a free and loose state, and the spring stopper blocks the pin shaft; (b) indicates that the power transmission wire passes through the upper and lower jaws of the wire clamp, and the spring pull ring rope of the main board of the wire clamp is tightened, and the pin shaft 9 passes along the arc of the main board. Slide the groove downward until the upper and lower jaws are tightly engaged with the power transmission wire; (c) means to loosen the spring pull ring rope on the main board of the cable clamp, and the pin shaft 9 slides down to a certain position along the arc groove of the main board. Until the upper and lower jaws are tightly engaged with the transmission wire, the backup protection of the tension insulator of the transmission line is completed when it is live;

图3为上、下钳口结构示意图。 Figure 3 is a schematic diagram of the structure of the upper and lower jaws.

具体实施方式 detailed description

下面将结合附图,对本实用新型的优选实施例进行详细的描述。 The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings.

一种后备保护卡线器,包括主板1、连扳2、拉臂3、上钳口4、下钳口5、第一销轴6、第二销轴7、第三销轴8、第四销轴9、第五销轴10、绝缘杆挂钩11、拉杆13、弹簧挡杆14、弹簧拉环15,所述主板下部设置有下钳口,所述下钳口的一端、连扳的一端通过第一销轴铰接于主板上;所述连扳的另一端通过第二销轴与拉臂的一端铰接,所述绝缘杆挂钩设置于第二销轴与拉臂的铰接处;所述主板上设置有圆弧通槽,所述上钳口的左端通过第三销轴与连板铰接,所述上钳口的另一端通过第四销轴可滑动的卡接于圆弧通槽内,所述主板上远离第一销轴的一端设置有横向通槽,所述拉臂的另一端通过第五销轴可滑动的卡接于横向通槽内,所述弹簧挡杆设置于主板上,所述弹簧挡杆在不受外力时,弹簧挡杆的一端伸入到圆弧通槽12内,所述弹簧挡杆的末端与弹簧拉环连接,所述弹簧拉环用于将弹簧挡杆拉出圆弧通槽。 A kind of back-up protective wire gripping device, comprising a main board 1, a pulley 2, a pull arm 3, an upper jaw 4, a lower jaw 5, a first pin shaft 6, a second pin shaft 7, a third pin shaft 8, a fourth pin shaft Pin shaft 9, the fifth pin shaft 10, insulating rod hook 11, pull rod 13, spring retaining rod 14, spring pull ring 15, the lower part of the main board is provided with a lower jaw, one end of the lower jaw and one end of the connecting lever It is hinged on the main board through the first pin shaft; the other end of the connecting lever is hinged with one end of the pull arm through the second pin shaft, and the insulating rod hook is arranged at the hinge of the second pin shaft and the pull arm; the main board There is an arc-shaped slot on the top, the left end of the upper jaw is hinged to the connecting plate through the third pin, and the other end of the upper jaw is slidably engaged in the arc slot through the fourth pin. The end of the main board away from the first pin shaft is provided with a transverse through slot, the other end of the pull arm is slidably engaged in the transverse through slot through the fifth pin shaft, the spring stopper is arranged on the main board, When the spring stopper is not subject to external force, one end of the spring stopper extends into the circular arc through groove 12, and the end of the spring stopper is connected with the spring pull ring, and the spring pullback is used to hold the spring stopper Pull out the arc slot.

在本实施例中,弹簧挡杆通过一个套筒固定在主板上,弹簧挡杆可以在套筒内作伸缩往复运动,但弹簧挡杆不会脱离套筒。 In this embodiment, the spring stopper is fixed on the main board through a sleeve, and the spring stopper can perform telescopic reciprocating movement in the sleeve, but the spring stopper will not break away from the sleeve.

图2为本实用新型在使用时弹簧挡杆的位置图;其中(a)卡线器上、下钳口张开到最大位置,销轴9位于主板圆弧通槽右上方位置,弹簧挡杆处于自由松弛状态,弹簧挡杆挡住销轴;(b)输电导线穿过卡线器上、下钳口,拉紧卡线器主板弹簧拉环绳索,销轴9沿着主板圆弧通槽向下滑动,直至上、下钳口与输电导线咬合紧密;(c)松开卡线器主板弹簧拉环绳索,销轴9沿着主板圆弧通槽向下滑动至某一位置,直至上、下钳口与输电导线咬合紧密,完成带电更换输电线路耐张绝缘子后备保护; Fig. 2 is the position diagram of the spring stop bar when the utility model is in use; wherein (a) the upper and lower jaws of the wire clamp are opened to the maximum position, the pin shaft 9 is located at the upper right position of the circular arc slot of the main board, and the spring stop bar In the state of free relaxation, the spring stopper blocks the pin shaft; (b) the power transmission wire passes through the upper and lower jaws of the wire clamp, and the spring pull ring rope of the main board of the wire clamp is tightened, and the pin shaft 9 is directed along the arc groove of the main board. Slide down until the upper and lower jaws are tightly engaged with the power transmission wire; (c) Loosen the rope of the spring pull ring of the main board of the cable clamp, and slide the pin 9 down to a certain position along the arc groove of the main board until the upper and lower The lower jaw is tightly engaged with the transmission wire to complete the backup protection for live replacement of the tension insulator of the transmission line;

如图3所示,上钳口4和下钳口5上分别设置第一凹槽16和第二凹槽17,其中第二凹槽17为半圆形两侧对称设置V形或条形第一凹槽16。优选的第一凹槽16和第二凹槽17的深度为0.5-3cm。 As shown in Figure 3, the upper jaw 4 and the lower jaw 5 are respectively provided with a first groove 16 and a second groove 17, wherein the second groove 17 is a semicircle with a V-shaped or strip-shaped second groove symmetrically arranged on both sides. A groove 16. Preferably, the depth of the first groove 16 and the second groove 17 is 0.5-3 cm.

进行操作卡线时,通过上钳口4和下钳口5上设置的第一凹槽16和第二凹槽17其紧固效果更好,其中过上钳口4和下钳口5上的卡齿为错位设置,达到紧固目的。 When performing clamping operations, the fastening effect is better through the first groove 16 and the second groove 17 provided on the upper jaw 4 and the lower jaw 5, wherein the upper jaw 4 and the lower jaw 5 have a better fastening effect. The locking teeth are set in dislocation to achieve the purpose of fastening.

本实用新型的使用方法: The using method of the utility model:

1、杆上操作人员将托瓶架的两端分别固定在横担和绝缘子卡簧上。 1. The operator on the pole fixes the two ends of the bottle holder on the cross arm and the insulator spring respectively.

2、杆上操作人员将后备保护卡线器上钳口和下钳口张开到最大位置,使销轴9位于主板圆弧通槽右上方位置,弹簧挡杆处于自由松弛状态,弹簧挡杆挡住销轴9,确保卡线器上钳口和下钳口的张开。 2. The operator on the rod opens the upper and lower jaws of the backup protection wire clamp to the maximum position, so that the pin shaft 9 is located at the upper right position of the arc slot on the main board, the spring stopper is in a free and relaxed state, and the spring stopper Block the pin shaft 9 to ensure the opening of the upper jaw and the lower jaw of the wire clamp.

3、杆上操作人员用一绝缘操作杆穿过卡线器绝缘杆挂钩11,将后备保护紧线器送至托瓶架输电导线侧,使输电导线穿过卡线器上、下钳口,拉动卡线器主板弹簧拉环绳索,直至上、下钳口与输电导线咬合紧密,完成带电更换输电线路耐张绝缘子后备保护。 3. The operator on the pole passes through the hook 11 of the insulating rod of the wire clamp with an insulating operating rod, and sends the backup protection wire tightener to the side of the power transmission wire of the bottle holder, so that the power transmission wire passes through the upper and lower jaws of the wire clamp, Pull the spring pull ring rope on the main board of the cable clamp until the upper and lower jaws are tightly engaged with the transmission wire, and the backup protection of the tension insulator of the power transmission line is completed.

4、带电更换输电线路耐张绝缘子完毕后,拉动拉杆绝缘绳索,卡线器上、下钳口松弛,输电导线从卡线器上、下钳口松弛、脱离,绝缘操作杆穿过卡线器绝缘杆挂钩收回卡线器。 4. After the live replacement of the tension insulator of the transmission line is completed, pull the insulating rope of the pull rod, the upper and lower jaws of the wire clamp are loose, the transmission wire is loosened and separated from the upper and lower jaws of the wire clamp, and the insulation operating rod passes through the wire clamp. The insulating rod hook retracts the wire clipper.

最后说明的是,以上优选实施例仅用以说明本实用新型的技术方案而非限制,尽管通过上述优选实施例已经对本实用新型进行了详细的描述,但本领域技术人员应当理解,可以在形式上和细节上对其作出各种各样的改变,而不偏离本实用新型权利要求书所限定的范围。 Finally, it is noted that the above preferred embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in the form Various changes can be made in the above and in the details without departing from the scope defined by the claims of the present invention.

Claims (1)

1.一种后备保护卡线器,其特征在于:包括主板(1)、连扳(2)、拉臂(3)、上钳口(4)、下钳口(5)、第一销轴(6)、第二销轴(7)、第三销轴(8)、第四销轴(9)、第五销轴(10)、绝缘杆挂钩(11)、拉杆(13)、弹簧挡杆(14)、弹簧拉环(15),所述主板(1)下部设置有下钳口(5),所述下钳口(5)的一端、连扳(2)的一端通过第一销轴铰接于主板(1)上;所述连扳(2)的另一端通过第二销轴(7)与拉臂(3)的一端铰接,所述绝缘杆挂钩(11)设置于第二销轴(7)与拉臂(3)的铰接处;所述主板(1)上设置有圆弧通槽(12),所述上钳口(4)的左端通过第三销轴(8)与连板(2)铰接,所述上钳口(4)的另一端通过第四销轴(9)可滑动的卡接于圆弧通槽(12)内,所述主板(1)上远离第一销轴(6)的一端设置有横向通槽,所述拉臂(3)的另一端通过第五销轴(10)可滑动的卡接于横向通槽内;所述弹簧挡杆设置于主板上,所述弹簧挡杆在不受外力时,弹簧挡杆的一端伸入到圆弧通槽(12)内,所述弹簧挡杆的末端与弹簧拉环连接,所述弹簧拉环用于将弹簧挡杆拉出圆弧通槽。1. A back-up protective wire clipper, characterized in that it includes a main board (1), a connecting lever (2), a pull arm (3), an upper jaw (4), a lower jaw (5), and a first pin (6), the second pin (7), the third pin (8), the fourth pin (9), the fifth pin (10), the insulating rod hook (11), the pull rod (13), the spring retainer Rod (14), spring pull ring (15), the bottom of the main board (1) is provided with a lower jaw (5), and one end of the lower jaw (5) and one end of the connecting lever (2) pass through the first pin The shaft is hinged on the main board (1); the other end of the connecting lever (2) is hinged with one end of the pull arm (3) through the second pin shaft (7), and the insulating rod hook (11) is set on the second pin The joint between the shaft (7) and the pull arm (3); the main board (1) is provided with a circular arc slot (12), and the left end of the upper jaw (4) passes through the third pin shaft (8) and The connecting plate (2) is hinged, and the other end of the upper jaw (4) is slidably engaged in the circular arc slot (12) through the fourth pin shaft (9). One end of a pin (6) is provided with a transverse through groove, and the other end of the pull arm (3) is slidably engaged in the transverse through groove through the fifth pin (10); On the main board, when the spring retaining rod is not subjected to external force, one end of the spring retaining rod stretches into the circular arc through groove (12), and the end of the spring retaining rod is connected with the spring pull ring, and the spring pull ring is used To pull the spring stopper out of the circular arc slot.
CN201520950839.1U 2015-11-25 2015-11-25 A kind of back-up protection wire clamp Active CN205159908U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520950839.1U CN205159908U (en) 2015-11-25 2015-11-25 A kind of back-up protection wire clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520950839.1U CN205159908U (en) 2015-11-25 2015-11-25 A kind of back-up protection wire clamp

Publications (1)

Publication Number Publication Date
CN205159908U true CN205159908U (en) 2016-04-13

Family

ID=55695561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520950839.1U Active CN205159908U (en) 2015-11-25 2015-11-25 A kind of back-up protection wire clamp

Country Status (1)

Country Link
CN (1) CN205159908U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720524A (en) * 2016-04-18 2016-06-29 国网辽宁省电力有限公司本溪供电公司 Movable pulley type labor-saving lead clamping device
CN107833706A (en) * 2017-12-22 2018-03-23 国网河北省电力有限公司衡水供电分公司 A kind of emergent insulator
CN115051287A (en) * 2022-08-15 2022-09-13 兴化市永安电力工具有限公司 Wire clamping device for power line construction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105720524A (en) * 2016-04-18 2016-06-29 国网辽宁省电力有限公司本溪供电公司 Movable pulley type labor-saving lead clamping device
CN107833706A (en) * 2017-12-22 2018-03-23 国网河北省电力有限公司衡水供电分公司 A kind of emergent insulator
CN115051287A (en) * 2022-08-15 2022-09-13 兴化市永安电力工具有限公司 Wire clamping device for power line construction

Similar Documents

Publication Publication Date Title
CN201638948U (en) A throw-pull grounding wire for transmission lines
CN104505766B (en) The instrument and method of a kind of charged for replacement transformer station 500kV strain insulator strings
CN205159908U (en) A kind of back-up protection wire clamp
CN105305317A (en) Tool of suspending insulated flexible ladder on live wires
CN104348116B (en) Symmetrical wing type conductor clamping device with automatic clamping function
CN104767050B (en) Hook type personal security line
CN101908739B (en) Trolley used for maintenance of electricity overhead power transmission line
CN103795005A (en) Special tool for dual protection of wire of strain tower
CN109167302A (en) A kind of wire termination drawing method for the tight hanging wire construction of transmission line of electricity
CN203660422U (en) 500 kV overhead ground wire lifting tool
CN102277758A (en) Steel rope splicing device
CN201075605Y (en) Pincer type pin puller
CN201998123U (en) Steel wire rope splicing device
CN204316011U (en) A kind of symmetrical expression aerofoil profile fixing-line device
CN103247972B (en) Wire tractor
CN216530465U (en) Bypass insulation drainage wire fixing device
CN103500966A (en) Electrified power disconnecting method for leading wire from 66kv disconnecting switch to pipe busbar
CN206992647U (en) High-voltage overhead conductor self-locking charged wiring clamp
CN203166133U (en) Conductor grip for ground wire
CN202905992U (en) Rope-controlling test splicing fitting
CN205141535U (en) Live conductor hangs instrument of insulating rope ladder
CN205753210U (en) A kind of fixing-line device
CN205543975U (en) Change insulator chain backup protection fixing -line device with electricity
CN102545102A (en) 1000-Kv tension-resistant horizontal insulator charged exchange device
CN203218791U (en) wire retractor

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant