CN202405731U - Special cable clamp for live installation of lightning arrester at ground potential - Google Patents

Special cable clamp for live installation of lightning arrester at ground potential Download PDF

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Publication number
CN202405731U
CN202405731U CN2012200015465U CN201220001546U CN202405731U CN 202405731 U CN202405731 U CN 202405731U CN 2012200015465 U CN2012200015465 U CN 2012200015465U CN 201220001546 U CN201220001546 U CN 201220001546U CN 202405731 U CN202405731 U CN 202405731U
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China
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wire
lightning arrester
ground potential
groove
screw
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Expired - Fee Related
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CN2012200015465U
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Chinese (zh)
Inventor
赵国良
雒文博
刘晓刚
陈东
季宁
刘树清
顾铁利
肖建国
王树军
武荣伟
曹红军
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Chengde Power Supply Co Of Jibei Electric Power Co ltd
State Grid Corp of China SGCC
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CHENGDE POWER SUPPLY Co Ltd OF NORTH CHINA GRID Co Ltd
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Abstract

本实用新型公开了一种在地电位带电安装避雷器专用线夹,包括线夹体,线夹体的一端设有与避雷器连接的孔,另一端设有挂接导线的凹槽,与凹槽相对的是一压块,压块与螺杆相连,螺杆与线夹体上的螺孔配合,在凹槽一端的外侧设有吊耳,吊耳上设有吊孔,作业人员地电位处使用带挂钩的绝缘操作杆将线夹挑起挂到安装避雷器的导线上,再使用带套筒扳手的绝缘操作杆拧紧螺杆,使压块与挂接导线的凹槽配合夹紧导线,然后将避雷器与线夹体进行连接。本实用新型结构简单合理,可实现地电位作业,使作业人员不直接接触带电体,人员、设备的安全性大大提高,带电安装避雷器的时间由原来的28分钟缩短到16分钟,节省了人力物力。

Figure 201220001546

The utility model discloses a special wire clip for installing a lightning arrester charged at the ground potential, which comprises a wire clip body, one end of the wire clip body is provided with a hole connected with the lightning arrester, and the other end is provided with a groove for connecting a wire, opposite to the groove The most important is a briquetting block, which is connected to the screw, and the screw is matched with the screw hole on the clamp body. There is a lifting lug on the outside of one end of the groove, and a lifting hole is set on the lifting lug. The operator uses a belt hook at the ground potential. Use the insulating operating rod to lift the wire clamp to the wire on which the lightning arrester is installed, and then use the insulating operating rod with a socket wrench to tighten the screw, so that the pressing block matches the groove of the wire to clamp the wire, and then connect the lightning arrester to the wire Clips are connected. The utility model has a simple and reasonable structure, which can realize ground potential operation, so that the operators do not directly contact the charged body, the safety of personnel and equipment is greatly improved, and the time for installing the lightning arrester is shortened from 28 minutes to 16 minutes, saving manpower and material resources .

Figure 201220001546

Description

一种在地电位带电安装避雷器专用线夹A special clamp for lightning arrester installed on ground potential

技术领域: Technical field:

本实用新型涉及一种电力设施安装用装置,特别是涉及一种在地电位带电安装避雷器专用线夹。The utility model relates to a device for installing electric facilities, in particular to a special clamp for installing lightning arresters charged at ground potential.

背景技术: Background technique:

承德电网地处多雷山区,由于雷电造成的电网事故日益增多,采取有效措施减少雷害造成的电网事故尤为重要。安装线路避雷器是目前输电线路降低雷击跳闸率的有效技术手段之一。带电安装避雷器提高了供电可靠性,避免了停电检修而造成少送电量。同时也增强了检修计划性,采用带电检修方法后,可以保持系统的运行方式不变,保证了电网的安全运行,降低了设备及人身事故。与停电作业相比,大大降低了误登杆塔、误入带电间隔、误操作以及因反复停电、验电、挂接地线等手续而造成的设备及人身事故。带电作业是指对高压电气设备及设施进行不停电的作业。带电作业方法分为三种:(1)等电位作业:指作业人员与带电体处在同一电位的作业,等电位电工进入电位一般要使用平梯或软梯等工具;(2)地电位作业:指带电作业时作业人员处于地电位(站在杆塔上)状态,利用绝缘工具间接接触高压带电体的作业;(3)中间电位作业:指带电作业时作业人员处于带电体电位与地电位之间电位上的作业。目前,我国在带电安装避雷器作业过程中,使用的工作方法全部为等电位作业法,等电位作业法需要等电位作业电工攀登软梯或平梯进入电位,需要设置多种绝缘作业工具,而设置这些作业工具非常繁琐,作业难度大,劳动强度大。通过对带电安装避雷器的作业时间进行统计,采用等电位作业法安装一只避雷器的作业时间平均为28分钟,而且等电位作业对电工的体能、技能要求非常高。同时等电位作业法只能局限在组合间隙等安全距离满足要求的部分杆塔中,一些小间距杆塔由于受空气间隙的限制不能进行带电安装避雷器工作。Chengde Power Grid is located in the Duolei mountain area, and the power grid accidents caused by lightning are increasing day by day. It is particularly important to take effective measures to reduce the power grid accidents caused by lightning damage. The installation of line arresters is one of the effective technical means to reduce the lightning tripping rate of transmission lines at present. Installing lightning arrestors while live improves the reliability of power supply and avoids less power transmission caused by power outages for maintenance. At the same time, it also enhances the maintenance planning. After adopting the live maintenance method, the operation mode of the system can be kept unchanged, ensuring the safe operation of the power grid, and reducing equipment and personal accidents. Compared with power outage operations, it greatly reduces equipment and personal accidents caused by mistakenly climbing on the tower, mistakenly entering the electrified interval, misoperation, and repeated power outages, power inspections, and grounding procedures. Live work refers to the operation of high-voltage electrical equipment and facilities without power failure. There are three types of live work methods: (1) Equal potential work: refers to the work in which the operator and the charged body are at the same potential. Equipotential electricians generally use tools such as flat ladders or soft ladders to enter the potential; (2) Ground potential work: Refers to the operation where the operator is at the ground potential (standing on the tower) during live work, and uses insulated tools to indirectly contact the high-voltage live body; (3) Intermediate potential work: refers to the work where the worker is between the potential of the live body and the ground potential during live work Potential work. At present, in the process of live installation of lightning arresters in our country, the working methods used are all equipotential working methods. The equipotential working method requires equipotential working electricians to climb soft ladders or flat ladders to enter the potential, and it is necessary to set up a variety of insulating work tools. To set these The operating tools are very cumbersome, the operation is difficult, and the labor intensity is high. According to statistics on the working time of live installation of lightning arresters, the average working time of installing a lightning arrester using the equipotential working method is 28 minutes, and the equipotential working requires very high physical fitness and skills of electricians. At the same time, the equipotential operation method can only be limited to some towers where the safety distance such as the combination gap meets the requirements, and some small-pitch towers cannot carry out live installation arresters due to the limitation of the air gap.

实用新型内容: Utility model content:

本实用新型针对现有技术的不足,提供一种在地电位带电安装避雷器专用线夹,该线夹结构合理,可实现在地电位带电安装避雷器,安全、方便,省时省力,本实用新型所要解决的技术问题是使作业人员在地电位处使用绝缘工具方便的将线夹固定到导线上,本实用新型所采取的技术方案如下:本实用新型包括线夹体,线夹体的一端设有与避雷器连接的孔,另一端设有挂接导线的凹槽,与凹槽相对的是一压块,压块与螺杆相连,螺杆与线夹体上的螺孔配合,其特征在于在凹槽一端的外侧设有吊耳,吊耳上设有吊孔。Aiming at the deficiencies of the prior art, the utility model provides a special line clip for installing lightning arresters charged at ground potential. The technical problem to be solved is to enable the operator to use an insulating tool at the ground potential to conveniently fix the clamp to the wire. The technical scheme adopted by the utility model is as follows: the utility model includes a clamp body, and one end of the clamp body is provided with The hole connected with the lightning arrester, the other end is provided with a groove for hanging the wire, opposite to the groove is a pressing block, the pressing block is connected with the screw, and the screw cooperates with the screw hole on the clamp body. The outer side of one end is provided with lifting lug, and is provided with lifting hole on the lifting lug.

本实用新型的使用方法如下:The using method of the present utility model is as follows:

作业人员地电位处使用带挂钩的绝缘操作杆将线夹挑起挂到安装避雷器的导线上,再使用带套筒扳手的绝缘操作杆拧紧螺杆,使压块与挂接导线的凹槽配合夹紧导线,然后将避雷器与线夹体进行连接即可。At the ground potential of the operator, use the insulating operating rod with a hook to lift the clamp to the wire on which the lightning arrester is installed, and then use the insulating operating rod with a socket wrench to tighten the screw so that the pressing block fits with the groove of the connecting wire. Tighten the wire, and then connect the arrester to the clamp body.

与现有技术相比,本实用新型具有结构简单合理,造价低,可实现地电位作业,使作业人员不直接接触带电体,人员、设备的安全性大大提高,并且带电安装避雷器的时间由原来的的28分钟缩短到16分钟,节省了人力物力。Compared with the prior art, the utility model has the advantages of simple and reasonable structure, low cost, and can realize the ground potential operation, so that the operators do not directly contact the electrified body, the safety of personnel and equipment is greatly improved, and the time for installing the lightning arrester when electrified is reduced from the original The original 28 minutes was shortened to 16 minutes, saving manpower and material resources.

附图说明: Description of drawings:

附图1是本实用新型主视图,Accompanying drawing 1 is the utility model front view,

附图2是本实用新型左视图Accompanying drawing 2 is the utility model left view

具体实施方式: Detailed ways:

本实用新型包括线夹夹体6,其作用是连接避雷器和导线,线夹夹体的一端设有与避雷器连接的孔1,另一端设有挂接导线的凹槽9,针对不同线径的导线5,可以设不同大小的凹槽,与凹槽相对的是一压块4,压块的表面是弧形,压块与螺杆3相连,螺杆与线夹体上的螺孔配合,螺杆上还设有锁紧螺母2,在凹槽一端的外侧设有吊耳7,吊耳上设有吊孔8,本实用新型可实现地电位作业安装避雷器。The utility model includes a wire clip body 6, whose function is to connect the lightning arrester and the wire. One end of the wire clip body is provided with a hole 1 connected with the lightning arrester, and the other end is provided with a groove 9 for connecting wires. Lead wire 5, can establish the groove of different sizes, is a briquetting block 4 opposite to groove, and the surface of briquetting block is arc-shaped, and briquetting block links to each other with screw rod 3, and screw rod cooperates with the screw hole on the clamp body, and on the screw rod Also be provided with locking nut 2, be provided with lug 7 in the outside of one end of groove, be provided with hoisting hole 8 on the lug, the utility model can realize ground potential operation and install lightning arrester.

Claims (1)

1. at earth potential live the special-purpose wire clamp of lightning arrester is installed for one kind, is comprised the wire clamp body, an end of wire clamp body is provided with the hole that is connected with lightning arrester; The other end is provided with the groove that articulates lead; Relative with groove is a briquetting, and briquetting links to each other with screw rod, and screw rod cooperates with screw on the wire clamp body; It is characterized in that being provided with hanger in the outside of groove one end, hanger is provided with lifting hole(eyelet).
CN2012200015465U 2012-01-01 2012-01-01 Special cable clamp for live installation of lightning arrester at ground potential Expired - Fee Related CN202405731U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983427A (en) * 2012-11-16 2013-03-20 辽宁省电力有限公司营口供电公司 Hot-line work cable clamp
CN103269037A (en) * 2013-05-28 2013-08-28 国家电网公司 Line arrester replacement device
CN104767166A (en) * 2015-04-15 2015-07-08 国家电网公司 A ground potential installation tool for line arrester
CN105680370A (en) * 2016-03-31 2016-06-15 国网辽宁省电力有限公司辽阳供电公司 Discharge gap live-line installation and dismounting method
CN105762700A (en) * 2016-03-28 2016-07-13 国网山东省电力公司章丘市供电公司 Cable laying manual traction auxiliary tool
CN111600268A (en) * 2020-04-28 2020-08-28 广州南方电安科技有限公司 Lead fixing device of special fixed cross arm of iron tower
CN112564020A (en) * 2020-11-02 2021-03-26 国网浙江省电力有限公司宁波供电公司 Drainage wire fixing auxiliary device for replacing drop-out fuse or lightning arrester

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102983427A (en) * 2012-11-16 2013-03-20 辽宁省电力有限公司营口供电公司 Hot-line work cable clamp
CN103269037A (en) * 2013-05-28 2013-08-28 国家电网公司 Line arrester replacement device
CN104767166A (en) * 2015-04-15 2015-07-08 国家电网公司 A ground potential installation tool for line arrester
CN105762700A (en) * 2016-03-28 2016-07-13 国网山东省电力公司章丘市供电公司 Cable laying manual traction auxiliary tool
CN105680370A (en) * 2016-03-31 2016-06-15 国网辽宁省电力有限公司辽阳供电公司 Discharge gap live-line installation and dismounting method
CN111600268A (en) * 2020-04-28 2020-08-28 广州南方电安科技有限公司 Lead fixing device of special fixed cross arm of iron tower
CN112564020A (en) * 2020-11-02 2021-03-26 国网浙江省电力有限公司宁波供电公司 Drainage wire fixing auxiliary device for replacing drop-out fuse or lightning arrester

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHENGDE POWER SUPPLY COMPANY JIBEI POWER CO., LTD.

Effective date: 20130815

Owner name: STATE ELECTRIC NET CROP.

Free format text: FORMER OWNER: CHENGDE POWER SUPPLY COMPANY JIBEI POWER CO., LTD.

Effective date: 20130815

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: CHENGDE POWER SUPPLY COMPANY JIBEI POWER CO., LTD.

Free format text: FORMER NAME: CHENGDE POWER SUPPLY CO., LTD. OF NORTH CHINA GRID CO., LTD.

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 067000 CHENGDE, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING

CP03 Change of name, title or address

Address after: 067000 No. 10 Xinhua North Road, Shuangqiao District, Hebei, Chengde

Patentee after: Chengde Power Supply Company of Jibei Electric Power Co.,Ltd.

Address before: 067000 Xinhua Road, 10, Hebei, Chengde

Patentee before: Chengde Power Supply Company of North China Grid Co.,Ltd.

TR01 Transfer of patent right

Effective date of registration: 20130815

Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing

Patentee after: State Grid Corporation of China

Patentee after: Chengde Power Supply Company of Jibei Electric Power Co.,Ltd.

Address before: 067000 No. 10 Xinhua North Road, Shuangqiao District, Hebei, Chengde

Patentee before: Chengde Power Supply Company of Jibei Electric Power Co.,Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120829

Termination date: 20200101