CN105514877A - Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines - Google Patents
Cross arm clamp for insulator replacement of steel pipe pole of common-tower double-circuit lines Download PDFInfo
- Publication number
- CN105514877A CN105514877A CN201610122667.8A CN201610122667A CN105514877A CN 105514877 A CN105514877 A CN 105514877A CN 201610122667 A CN201610122667 A CN 201610122667A CN 105514877 A CN105514877 A CN 105514877A
- Authority
- CN
- China
- Prior art keywords
- arm
- cross
- steel pipe
- jig
- common
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
- Insulators (AREA)
Abstract
本发明公开了一种同塔双回钢管杆更换绝缘子作业用横担卡具,包括卡具本体,其特征在于:所述卡具本体中段设置两个横担卡座,卡具本体两端各设置一个开口朝上的紧线器卡槽,紧线器与绝缘拉杆及提线钩连接后挂在横担卡具两端的紧线器卡槽内,收紧或放松紧线器即可实现对绝缘子串的更换作业,本发明使用时,克服了因线路设计造成的检修工作不便的问题,操作简便、省时省力,工作效率高;通用性强,对工作人员无特殊要求,作业人员少,更换操作流程简洁,劳动强度低,一般带电作业人员使用都可以达到检修工艺要求,具有强度高、重量轻、安全性高、便于携带的优点作业时间短,工作效率高,减少了线路停电时间,提高了电量销售和线路安全。
The invention discloses a cross-arm jig for replacing insulators with double-return steel pipe rods on the same tower, which includes a jig body. Set a wire tensioner slot with the opening facing upwards. The wire tensioner is connected with the insulating pull rod and the wire hook and then hung in the wire tensioner slot at both ends of the cross-arm jig. Tighten or loosen the wire tensioner to achieve alignment. The replacement operation of the insulator string, when the present invention is used, overcomes the problem of inconvenient maintenance work caused by the circuit design, and is easy to operate, saves time and effort, and has high work efficiency; it has strong versatility, no special requirements for the staff, and fewer operators. The replacement operation process is simple and the labor intensity is low. Generally, live workers can use it to meet the maintenance process requirements. It has the advantages of high strength, light weight, high safety, and portability. Increased electricity sales and line security.
Description
技术领域 technical field
本发明涉及一种用于地电位带电作业的同塔双回钢管杆更换悬垂绝缘子串的横担卡具。 The invention relates to a cross-arm jig for replacing hanging insulator strings with double-circuit steel pipe rods on the same tower, which is used for ground potential live work.
背景技术 Background technique
随着社会经济的不断发展,社会公众对于电力可靠供应要求越来越高。由于钢管杆占地空间小、投资少、建设速度快,且美观实用,近年来在城市电网建设中大量应用。随着电力线路的不断增多,部分设备逐步老化,输电线路日常维护检修工作任务越来越重。由于线路设计中钢管杆钢管表面光滑、操作空间狭窄,没有充分考虑设备带电检修的工作任务要求,而且受设计情况所限,同塔双回钢管杆的杆型、导线的布置比角钢塔单回线路更紧凑,相间距离也较小,造成了在钢管杆上开展带电作业更换绝缘子串的难度也非常大,严重影响线路可靠性运行指标。 With the continuous development of social economy, the public has higher and higher requirements for reliable power supply. Due to the small space occupied by the steel pipe pole, low investment, fast construction speed, beautiful and practical, it has been widely used in the construction of urban power grids in recent years. With the continuous increase of power lines and the gradual aging of some equipment, the daily maintenance and repair tasks of transmission lines are becoming more and more heavy. Due to the smooth surface of the steel pipe rod and the narrow operating space in the line design, the work task requirements of the live maintenance of the equipment are not fully considered, and limited by the design situation, the rod shape and wire arrangement of the double-circuit steel pipe rod in the same tower are compared with the single-circuit angle steel tower. The line is more compact and the distance between phases is also smaller, which makes it very difficult to carry out live work on the steel pipe pole to replace the insulator string, which seriously affects the reliability and operation index of the line.
发明内容 Contents of the invention
本发明要解决的技术问题是提供一种便于操作的同塔双回钢管杆更换绝缘子作业用横担卡具。 The technical problem to be solved by the present invention is to provide an easy-to-operate cross-arm fixture for replacing insulators with double-return steel pipe rods on the same tower.
本发明的技术解决方案是:所提供的同塔双回钢管杆更换绝缘子作业用横担卡具,包括卡具本体,其特殊之处在于:所述卡具本体中段设置两个横担卡座,卡具本体两端各设置一个开口朝上的紧线器卡槽。紧线器与绝缘拉杆及提线钩连接后挂在横担卡具两端的紧线器卡槽内,收紧或放松紧线器即可实现对绝缘子串的更换作业。 The technical solution of the present invention is: the provided cross-arm jig for replacing insulators with double-circuit steel pipe rods on the same tower includes the jig body, and its special feature is that two cross-arm clamps are set in the middle section of the jig body , A wire tensioner slot with an opening facing upward is provided at both ends of the fixture body. After the wire tensioner is connected with the insulating pull rod and the wire lifting hook, it is hung in the wire tensioner slots at both ends of the cross-arm jig, and the insulator string can be replaced by tightening or loosening the wire tensioner.
上述卡具本体两端还设置有开口朝向外侧的紧线器支座槽,设置为双挂点,以适应单、双绝缘子挂串方式。 Both ends of the fixture body are also provided with tensioner support grooves with openings facing the outside, which are set as double hanging points to adapt to the single and double insulator hanging strings.
上述横担卡座与紧线器卡槽之间设置有上下贯通的螺纹孔,螺纹孔内安装有带丝杠螺杆的“L”形横担挂钩。“L”形横担挂钩将整个横担卡具与钢管杆横担连接固定。 A threaded hole penetrating up and down is provided between the above-mentioned cross-arm holder and the tensioner slot, and an "L"-shaped cross-arm hook with a lead screw is installed in the threaded hole. The "L"-shaped cross-arm hook connects and fixes the entire cross-arm fixture with the steel pipe rod cross-arm.
上述横担卡座上设置有旋转伸缩滑块,旋转伸缩滑块的最大伸缩量为30cm,保证其适用于35kV、110kV、220kV等不同型号的横担。 The above-mentioned cross-arm deck is provided with a rotating telescopic slider, and the maximum telescopic amount of the rotating telescopic slider is 30cm, which ensures that it is suitable for different types of cross-arms such as 35kV, 110kV, and 220kV.
上述旋转伸缩滑块与横担的接触面为圆弧状,能够承受一定的作用力。 The contact surface between the above-mentioned rotary telescopic slide block and the cross arm is arc-shaped and can withstand a certain force.
上述卡具本体中段还设置有防鸟器卡槽,适用于安装有防鸟器的横担端板。 The middle part of the fixture body is also provided with a bird-proof device slot, which is suitable for the cross-arm end plate with the bird-proof device installed.
上述防鸟器卡槽上设置有调节固定螺栓,用于在防鸟器上调节固定。 An adjustment fixing bolt is arranged on the card slot of the above-mentioned bird preventer, which is used for adjusting and fixing on the bird preventer.
上述卡具本体为铝合金材质,强度高,重量轻。 The fixture body is made of aluminum alloy with high strength and light weight.
本发明的有益效果: Beneficial effects of the present invention:
(1)本发明提供的横担卡具结构简单,克服了因线路设计造成的检修工作不便的问题,使悬垂绝缘子串可灵活更换,操作简便、省时省力,工作效率高; (1) The cross-arm jig provided by the present invention has a simple structure, overcomes the problem of inconvenient maintenance work caused by the circuit design, enables flexible replacement of the hanging insulator string, is easy to operate, saves time and effort, and has high work efficiency;
(2)本发明提供的横担卡具通用性强,对工作人员无特殊要求,作业人员少,更换操作流程简洁,劳动强度低。一般带电作业人员使用都可以达到检修工艺要求,适用于35kV—110kV同塔双回钢管杆地电位带电作业; (2) The cross-arm jig provided by the present invention has strong versatility, has no special requirements for workers, requires fewer workers, has a simple replacement operation process, and has low labor intensity. Generally live workers can use it to meet the maintenance process requirements, and it is suitable for 35kV-110kV double-circuit steel pipe pole ground potential live work on the same tower;
(3)本发明所提供的横担卡具采用铝合金材质,具有强度高、重量轻、安全性高、便于携带的优点; (3) The cross-arm jig provided by the present invention is made of aluminum alloy, which has the advantages of high strength, light weight, high safety and portability;
(4)使用本发明提供的横担卡具可以带电作业更换绝缘子串,作业时间短,工作效率高,减少了线路停电时间,提高了电量销售和线路安全。 (4) The cross-arm jig provided by the present invention can be used to replace insulator strings with live operation, the operation time is short, the work efficiency is high, the power failure time of the line is reduced, and the electricity sales and line safety are improved.
附图说明 Description of drawings
图1为本发明较佳实施例的结构示意图。 Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
图2为本发明较佳实施例的俯视示意图。 Fig. 2 is a schematic top view of a preferred embodiment of the present invention.
图3为本发明较佳实施例的使用状态示意图。 Fig. 3 is a schematic view of the use state of the preferred embodiment of the present invention.
其中,附图标记为:1-卡具本体;2-紧线器卡槽;3-紧线器支座槽;4-防鸟器卡槽;5-调节固定螺栓;6-螺纹孔;7-横担挂钩;8-横担卡座;9-旋转伸缩滑块;10-紧线器;11-绝缘拉杆;12-提线钩;13-导线;14-绝缘子串。 Among them, the reference signs are: 1-fixture body; 2-wire tensioner slot; 3-wire tensioner support slot; 4-bird-proof device slot; 5-adjustment fixing bolt; 6-threaded hole; 7 -Cross-arm hook; 8-Cross-arm deck; 9-Rotary telescopic slider; 10-Tightener; 11-Insulation pull rod;
具体实施方式 detailed description
下面结合附图对本发明作进一步描述: The present invention will be further described below in conjunction with accompanying drawing:
参见图1和图2,本发明较佳实施例是一种适用于35kV—220kV同塔双回钢管杆多边形横担导线端专用横担卡具,该横担卡具包括一个左右对称型结构的卡具本体1。卡具本体1的中段设置两个横担卡座8,卡具本体1的两端各设置一个开口朝上的紧线器卡槽2和一个开口朝向外侧的紧线器支座槽3,设置为双挂点,可以适应单、双绝缘子挂串方式。横担卡座8上设置有旋转伸缩滑块9(上部留有5mm的余度),旋转伸缩滑块9的最大伸缩量为30cm,保证其适用于35kV、110kV、220kV等不同型号的横担,横担最窄13cm,最宽能达到26cm。旋转伸缩滑块9与横担的接触面要设计成有一定弧度的过渡连接部件,使其能承受一定的作用力。两个横担卡座8之间还设置有“Π”形防鸟器卡槽4,防鸟器卡槽4两侧设有调节固定螺栓5以适应不同尺寸的横担防鸟器。在横担防鸟器卡槽4与紧线器支座槽3之间设置有螺纹孔6,螺纹孔6内安装带丝杠螺杆的“L”形横担挂钩7,横担挂钩7设置为对称双挂点,可通过调节横担挂钩7的长度和旋转伸缩滑块9的长度来适应不同高度及没有安装防鸟器的横担端板。横担挂钩7采用丝杠螺杆配螺丝固定一体成型,因为双挂钩将在使用中承受主要的力。挂钩的钩板要设计相对较长和较宽,要与横担的接触面大,钩板原先为直角型,由于横担是一个弧形的,所以钩板要设计有一定斜角度的,倾斜角度大约为5度,钩板要右侧高左侧低。 Referring to Fig. 1 and Fig. 2, the preferred embodiment of the present invention is a cross-arm fixture suitable for the polygonal cross-arm wire ends of double-circuit steel pipe rods of 35kV-220kV on the same tower. The cross-arm fixture includes a left-right symmetrical structure Fixture body 1. The middle section of the clamp body 1 is provided with two cross-arm holders 8, and each of the two ends of the clamp body 1 is provided with a wire tensioner slot 2 with an opening facing upward and a wire tensioner support groove 3 with an opening facing the outside. It is a double hanging point, which can adapt to single and double insulator hanging strings. The cross-arm card holder 8 is provided with a rotating telescopic slider 9 (the upper part has a margin of 5mm), and the maximum telescopic amount of the rotating telescopic slider 9 is 30cm, which ensures that it is suitable for different types of cross-arms such as 35kV, 110kV, and 220kV. , the narrowest cross arm is 13cm, and the widest can reach 26cm. The contact surface of the rotary telescopic slide block 9 and the cross arm will be designed as a transition connection part with a certain radian, so that it can bear a certain force. Also be provided with " Π " shape bird-proof device draw-in slot 4 between two cross-arm decks 8, bird-proof device draw-in slot 4 both sides are provided with adjusting fixing bolt 5 to adapt to cross-arm bird preventer of different sizes. A threaded hole 6 is provided between the card slot 4 of the crossarm bird-proof device and the support groove 3 of the wire tensioner, and an "L" shaped crossarm hook 7 with a lead screw screw is installed in the threaded hole 6, and the crossarm hook 7 is set as Symmetrical double hanging points can adapt to different heights and cross-arm end plates without bird preventers installed by adjusting the length of the cross-arm hook 7 and the length of the rotating telescopic slide block 9. The cross-arm hook 7 adopts the lead screw and the screw to fix the integral molding, because the double hook will bear the main force in use. The hook plate of the hook should be designed to be relatively long and wide, and the contact surface with the cross arm should be large. The hook plate was originally a right-angle type. Since the cross arm is an arc, the hook plate should be designed with a certain oblique angle. The angle is about 5 degrees, and the hook plate should be higher on the right side and lower on the left side.
参见图3,紧线器10与绝缘拉杆11及提线钩12连接后挂在横担卡具两端的紧线器卡槽2内,收紧或放松紧线器1即可实现对绝缘子串14的更换作业。 Referring to Fig. 3, the wire tensioner 10 is connected with the insulating pull rod 11 and the wire lifting hook 12 and then hung in the wire tensioner slot 2 at both ends of the cross-arm jig, tightening or loosening the wire tensioner 1 can realize the insulator string 14 replacement work.
本发明提供的横担卡具结构简单,克服了因线路设计造成的检修工作不便的问题,使悬垂绝缘子串可灵活更换,操作简便、省时省力,工作效率高;横担卡具通用性强,对工作人员无特殊要求,作业人员少,更换操作流程简洁,劳动强度低。一般带电作业人员使用都可以达到检修工艺要求,适用于35kV—110kV同塔双回钢管杆地电位带电作业;横担卡具采用铝合金材质,具有强度高、重量轻、安全性高、便于携带的优点;横担卡具可以带电作业更换绝缘子串,作业时间短,工作效率高,减少了线路停电时间,提高了电量销售和线路安全。 The cross-arm jig provided by the invention has a simple structure, overcomes the problem of inconvenient maintenance work caused by the circuit design, enables the hanging insulator string to be replaced flexibly, is easy to operate, saves time and effort, and has high work efficiency; the cross-arm jig has strong versatility , no special requirements for the staff, fewer operators, simple replacement operation process, and low labor intensity. Generally live workers can use it to meet the maintenance process requirements. It is suitable for 35kV-110kV double-circuit steel pole ground potential live work on the same tower; the cross-arm fixture is made of aluminum alloy, which has high strength, light weight, high safety, and is easy to carry. Advantages; the cross-arm jig can replace the insulator string with live operation, the operation time is short, the work efficiency is high, the power failure time of the line is reduced, and the electricity sales and line safety are improved.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610122667.8A CN105514877B (en) | 2016-03-04 | 2016-03-04 | Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610122667.8A CN105514877B (en) | 2016-03-04 | 2016-03-04 | Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105514877A true CN105514877A (en) | 2016-04-20 |
CN105514877B CN105514877B (en) | 2018-11-16 |
Family
ID=55722646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201610122667.8A Active CN105514877B (en) | 2016-03-04 | 2016-03-04 | Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105514877B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106451209A (en) * | 2016-10-31 | 2017-02-22 | 国网山东省电力公司济南市长清区供电公司 | Insulator string replacement auxiliary device |
CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
CN107882502A (en) * | 2017-12-21 | 2018-04-06 | 国网河北省电力有限公司衡水供电分公司 | The offline special-purpose ladder fixing device of steel pipe pole cross-arm |
CN111130017A (en) * | 2020-03-02 | 2020-05-08 | 国网通用航空有限公司 | Ground wire lifter operating by utilizing ground wire cross arm angle steel |
CN111224347A (en) * | 2020-03-13 | 2020-06-02 | 广东电网有限责任公司电力科学研究院 | Channel steel cross arm fixture for pole and tower insulator replacement |
CN112523676A (en) * | 2020-11-27 | 2021-03-19 | 国网山东省电力公司烟台供电公司 | Climbing assistor for insulating rope ladder of power transmission line |
CN115548970A (en) * | 2022-10-18 | 2022-12-30 | 贵州电网有限责任公司 | Quick replacement pin insulator top line ware |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202363811U (en) * | 2011-12-13 | 2012-08-01 | 辽宁省电力有限公司鞍山供电公司 | Cross arm clamping device for replacing insulator of direct-current 500kv straight-line string |
CN203690800U (en) * | 2014-01-08 | 2014-07-02 | 云南电网公司带电作业分公司 | Integral clamping tool used for replacing cross arm end linear string insulator |
CN104009416A (en) * | 2014-06-05 | 2014-08-27 | 国家电网公司 | Large-span telescopic universal tower head fixture |
CN204144800U (en) * | 2014-12-12 | 2015-02-04 | 国家电网公司 | The special cross-arm card of a kind of ZML type tower |
CN204167793U (en) * | 2014-11-10 | 2015-02-18 | 云南电网公司带电作业分公司 | Straight line steel tube tower side, double loop cross-arm jig |
CN204651789U (en) * | 2015-06-19 | 2015-09-16 | 国家电网公司 | The special hanger of hot-line insulator string replacement |
CN205565511U (en) * | 2016-03-04 | 2016-09-07 | 国家电网公司 | Change insulators cross arm fixture for operation with two steel pipe poles that return of tower |
-
2016
- 2016-03-04 CN CN201610122667.8A patent/CN105514877B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202363811U (en) * | 2011-12-13 | 2012-08-01 | 辽宁省电力有限公司鞍山供电公司 | Cross arm clamping device for replacing insulator of direct-current 500kv straight-line string |
CN203690800U (en) * | 2014-01-08 | 2014-07-02 | 云南电网公司带电作业分公司 | Integral clamping tool used for replacing cross arm end linear string insulator |
CN104009416A (en) * | 2014-06-05 | 2014-08-27 | 国家电网公司 | Large-span telescopic universal tower head fixture |
CN204167793U (en) * | 2014-11-10 | 2015-02-18 | 云南电网公司带电作业分公司 | Straight line steel tube tower side, double loop cross-arm jig |
CN204144800U (en) * | 2014-12-12 | 2015-02-04 | 国家电网公司 | The special cross-arm card of a kind of ZML type tower |
CN204651789U (en) * | 2015-06-19 | 2015-09-16 | 国家电网公司 | The special hanger of hot-line insulator string replacement |
CN205565511U (en) * | 2016-03-04 | 2016-09-07 | 国家电网公司 | Change insulators cross arm fixture for operation with two steel pipe poles that return of tower |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106451209A (en) * | 2016-10-31 | 2017-02-22 | 国网山东省电力公司济南市长清区供电公司 | Insulator string replacement auxiliary device |
CN106451209B (en) * | 2016-10-31 | 2018-08-07 | 国网山东省电力公司济南市长清区供电公司 | A kind of replacing insulator string auxiliary device |
CN107706822A (en) * | 2017-11-15 | 2018-02-16 | 国家电网公司 | Equipotential suspension clamp changes instrument |
CN107882502A (en) * | 2017-12-21 | 2018-04-06 | 国网河北省电力有限公司衡水供电分公司 | The offline special-purpose ladder fixing device of steel pipe pole cross-arm |
CN107882502B (en) * | 2017-12-21 | 2024-01-30 | 国网河北省电力有限公司衡水供电分公司 | Special ladder fixing device for steel pipe pole cross arm offline |
CN111130017A (en) * | 2020-03-02 | 2020-05-08 | 国网通用航空有限公司 | Ground wire lifter operating by utilizing ground wire cross arm angle steel |
CN111130017B (en) * | 2020-03-02 | 2023-11-14 | 国网电力空间技术有限公司 | Ground wire lifter utilizing ground wire cross arm angle steel operation |
CN111224347A (en) * | 2020-03-13 | 2020-06-02 | 广东电网有限责任公司电力科学研究院 | Channel steel cross arm fixture for pole and tower insulator replacement |
CN112523676A (en) * | 2020-11-27 | 2021-03-19 | 国网山东省电力公司烟台供电公司 | Climbing assistor for insulating rope ladder of power transmission line |
CN112523676B (en) * | 2020-11-27 | 2022-08-02 | 国网山东省电力公司烟台供电公司 | Transmission line insulation soft ladder climbing aid |
CN115548970A (en) * | 2022-10-18 | 2022-12-30 | 贵州电网有限责任公司 | Quick replacement pin insulator top line ware |
CN115548970B (en) * | 2022-10-18 | 2024-06-21 | 贵州电网有限责任公司 | Quick replacement needle type insulator wire jacking device |
Also Published As
Publication number | Publication date |
---|---|
CN105514877B (en) | 2018-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105514877B (en) | Common-tower double-return steel pipe pole replacement insulation subjob cross-arm fixture | |
CN205565511U (en) | Change insulators cross arm fixture for operation with two steel pipe poles that return of tower | |
CN103594968B (en) | A kind of transmission tower multiple fission conductor lifting device | |
CN108847612A (en) | The specific purpose tool of charged for replacement 35kV strain insulator string | |
CN203932813U (en) | Power equipment maintaining cable insulation support device | |
CN102231492A (en) | Multifunctional suspension insulator string cross arm side hardware fitting replacement fixture | |
CN204258161U (en) | Support for replacing post insulator | |
CN203859441U (en) | Closed clamp for replacing insulator | |
CN203690798U (en) | Universal tool for replacing suspension angle tower insulator string | |
CN204885990U (en) | Lifting device for connecting plate of transmission line | |
CN204391613U (en) | A kind of wire support device of auxiliary replacement porcelain pole arm | |
CN206250670U (en) | It is a kind of to be easy to operation and safe replacing device for insulator | |
CN204927971U (en) | A holding pole for live replacement of insulator strings on transmission lines | |
CN207459562U (en) | The auxiliary stand of cross-arm in a kind of replacement line bar | |
CN208337014U (en) | A kind of charged for replacement Voltage for Insulators on HV Lines lifting block hanging point heightening device | |
CN106033872A (en) | Tool for equipotential replacement of tension insulators for single-connected double soft busbars | |
CN104852324A (en) | Lead support device assisting in replacing porcelain cross arm | |
CN204651789U (en) | The special hanger of hot-line insulator string replacement | |
CN205178388U (en) | Two cluster insulators of straight line are changed and are connected | |
CN205304094U (en) | A fixture that is used for electrified two independent many yoke plates of some combination insulator chain that hang that change | |
CN204030448U (en) | A kind of electrified fastening pin type insulator nut tool | |
CN108448488A (en) | 840kN grade tension quadruple cross-arm side insulator replacement tool and method | |
CN103606849A (en) | Multi-bundled live conductor lifting device for transmission tower and special fixture of multi-bundled live conductor lifting device | |
CN210956301U (en) | Insulator string suspension device for salt density test | |
CN202937046U (en) | Temporary support cross arm for hot-line work |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |