CN111200268A - Installation method of safety lightning arrester - Google Patents

Installation method of safety lightning arrester Download PDF

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Publication number
CN111200268A
CN111200268A CN202010121932.7A CN202010121932A CN111200268A CN 111200268 A CN111200268 A CN 111200268A CN 202010121932 A CN202010121932 A CN 202010121932A CN 111200268 A CN111200268 A CN 111200268A
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CN
China
Prior art keywords
lightning arrester
connecting rod
transmission line
tower
insulating
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
Application number
CN202010121932.7A
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Chinese (zh)
Other versions
CN111200268B (en
Inventor
陈海登
徐达艺
谢锡汉
陶祥海
李玲
曹维安
谢如琨
谢卓均
庞圣养
陈宇辉
观贵安
钟前辉
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.)
Zhanjiang Power Supply Bureau of Guangdong Power Grid Co Ltd
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Zhanjiang Power Supply Bureau of Guangdong Power Grid Co Ltd
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Application filed by Zhanjiang Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Zhanjiang Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority to CN202010121932.7A priority Critical patent/CN111200268B/en
Publication of CN111200268A publication Critical patent/CN111200268A/en
Application granted granted Critical
Publication of CN111200268B publication Critical patent/CN111200268B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G13/00Installations of lightning conductors; Fastening thereof to supporting structure

Abstract

The invention discloses a method for installing a safety lightning arrester, which is used for an overhead transmission line and comprises the following steps: installing a lightning arrester at one end of an insulating connecting rod with a certain length, then installing the other end of the insulating connecting rod on a tower of an overhead power transmission line, wherein one end of the insulating connecting rod, which is close to the lightning arrester, transversely extends to one side of the tower, and a cavity penetrating through two end faces of the insulating connecting rod is arranged in the insulating connecting rod; then, a connecting wire is inserted into the cavity of the insulating connecting rod, one end of the connecting wire is electrically connected with the tower frame, and the other end of the connecting wire is electrically connected with the lightning arrester; by adopting the installation method of the safety type lightning arrester, the lightning arrester and the tower are ensured to be insulated and isolated in the installation process, and even if the power transmission line is electrified, when the distance between the lightning arrester and the power transmission line exceeds a safe distance, arc discharge cannot be generated between the tower and the power transmission line, so that safety guarantee is provided for the electrified installation and the disassembly of the lightning arrester on the power transmission line.

Description

Installation method of safety lightning arrester
Technical Field
The invention relates to the technical field of lightning arrester installation, in particular to a method for installing a safety lightning arrester for an overhead transmission line.
Background
With the continuous development of national economy, the fundamental role of the power industry is highlighted, and the importance of power energy is widely recognized by people. From the practical situation, various power consumption demands are rapidly expanded, and the construction scale of a power grid is rapidly increased. Visually, the stability of the power grid is directly related to the power transmission line and directly related to the reliability of power supply. It follows that it is necessary to ensure safe operation of the transmission line. From the overhead transmission line condition, the problem of thunderbolt is a problem that must not neglect, and transmission line erects in the field, receives the thunderbolt very easily. The power transmission line is subjected to huge overvoltage and lightning overcurrent impact after being struck by lightning, so that the line is tripped and an insulator string is flashover if the power transmission line is struck by lightning, and a lead and an overhead ground wire are broken if the power transmission line is struck by lightning, so that shutdown faults are caused and even large-area power failure accidents are caused. Generally, when the arrester is installed, a metal conducting rod is directly installed on a tower, the arrester is installed on the conducting rod, and the arrester and the tower are directly electrically connected in the installation process, so that if a power transmission line is electrified, once the distance between the arrester and a high-voltage line exceeds a safe distance, arc discharge can be generated, and safety accidents occur. Therefore, there is a need for an improved lightning arrester installation structure on the existing power transmission line, in order to improve the safety of live installation.
Disclosure of Invention
The invention aims to provide a method for installing a safety type lightning arrester, which effectively improves the safety of installing the lightning arrester on a power transmission line in a live way.
In order to achieve the purpose, the invention discloses a method for installing a safety lightning arrester, which is used for an overhead transmission line and comprises the following steps:
installing a lightning arrester at one end of an insulating connecting rod with a certain length, then installing the other end of the insulating connecting rod on a tower of an overhead transmission line, wherein one end of the insulating connecting rod, which is close to the lightning arrester, transversely extends to one side of the tower, and a cavity penetrating through two end faces of the insulating connecting rod is arranged in the insulating connecting rod; and then, penetrating a connecting wire into the cavity of the insulating connecting rod, wherein one end of the connecting wire is electrically connected with the tower, and the other end of the connecting wire is electrically connected with the lightning arrester.
Compared with the prior art, the installation method of the safety arrester comprises the steps that the arrester is connected with a tower frame through the insulating connecting rod, in the installation process, the arrester is insulated from the tower frame through the insulating connecting rod, after the arrester and the insulating connecting rod are installed in place, a connecting wire penetrates into a cavity in the insulating connecting rod, the arrester is electrically connected with the tower frame, and the arrester starts to work normally; therefore, by adopting the installation method of the safety type lightning arrester, even if the power transmission line is electrified, when the distance between the lightning arrester and the power transmission line exceeds the safety distance, arc discharge cannot be generated between the tower and the power transmission line, and further safety guarantee is provided for the electrified installation and disassembly of the lightning arrester on the power transmission line.
Preferably, one end of the insulating connecting rod is connected with the tower through a first connecting piece, the lightning arrester is installed at the other end of the insulating connecting rod through a second connecting piece, and the first connecting piece and/or the second connecting piece are/is detachable connecting pieces.
Preferably, the second connecting member is a conductive metal member, the second connecting member is electrically connected to the arrester, a conductive connecting plate connected to the second connecting member is disposed on an end surface of one end of the insulating connecting rod, the end surface being close to the end where the arrester is located, and when the connecting wire penetrates into the cavity in the insulating connecting rod, the connecting wire abuts against the conductive connecting plate.
Preferably, the arrester is a tubular arrester.
Drawings
Fig. 1 is a schematic view of an installation structure of a lightning arrester according to an embodiment of the invention.
Fig. 2 is a schematic perspective view of an insulating connecting rod according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
As shown in fig. 1, the invention discloses a method for installing a safety lightning arrester, which is used for an overhead transmission line, and the method comprises the following steps: installing a lightning arrester 5 at one end of an insulating connecting rod 1 with a certain length, then installing the other end of the insulating connecting rod 1 on a tower 4 of an overhead power transmission line 100, wherein one end of the insulating connecting rod 1 close to the lightning arrester 5 transversely extends out to one side of the tower 5, and a cavity 10 penetrating through two end faces of the insulating connecting rod 1 is arranged in the insulating connecting rod 1; next, a connecting wire 3 is inserted into the cavity 10 of the insulating connecting rod 1, and one end of the connecting wire 3 is electrically connected to the tower 4, and the other end of the connecting wire 3 is electrically connected to the lightning arrester 5.
When the lightning arrester 5 is installed by adopting the installation method of the safety type lightning arrester with the structure, firstly, the lightning arrester 5 is installed at one end of the insulating connecting rod 1 with a certain length through the second connecting piece 21, then the other end of the insulating connecting rod 1 is installed on the tower 4 of the power transmission line 100 through the first connecting piece 20, one end of the insulating connecting rod 1 close to the lightning arrester 5 transversely extends out to one side of the tower 4, in the embodiment, the lightning arrester 5 is connected with the insulator string 7 connected between the tower 4 and the power transmission line 100 in parallel, and the insulator string 7 is protected from being broken down by lightning. Therefore, in the installation process, the insulation between the lightning arrester 5 and the tower 4 is realized through the insulating connecting rod 1, even if the power transmission line 100 is electrified, when the distance between the lightning arrester 5 and the power transmission line 100 exceeds a safe distance, arc discharge cannot be generated between the tower 4 and the power transmission line 100, and further, the safety guarantee is provided for the electrified installation and detachment of the lightning arrester 5 on the power transmission line 100.
For the electrical connection between the connecting wire 3 and the lightning arrester 5, it is preferable that: as shown in fig. 2, the second connecting member 21 is a conductive metal member, the second connecting member 21 is electrically connected to the lightning arrester 5, a conductive connecting plate 6 connected to the second connecting member 21 is disposed on an end surface of the insulating connecting rod 1 near the end where the lightning arrester 5 is located, when the connecting wire 3 penetrates into the cavity 10 in the insulating connecting rod 1, the connecting wire 3 abuts against the conductive connecting plate 6, so that the direct electrical connection between the connecting wire 3 and the lightning arrester 5 is realized through the conductive connecting plate 6 and the second connecting member 21, and the lightning charge transfer from the tower 4 to the lightning arrester 5 is further realized.
Preferably, as shown in fig. 2, the first connecting member 20 and/or the second connecting member 21 are detachable members for easy detachment and installation. In this embodiment, the first connecting member 20 and the second connecting member 21 are both metal sleeve members, and are connected to the tower 4 and the lightning arrester 5 by bolts, respectively. In addition, the arrester 5 in the above embodiment is preferably a tubular arrester 5 having a high arc extinguishing capability.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (4)

1. The utility model provides a safe type arrester mounting method, its is used for overhead transmission line, its characterized in that includes:
installing a lightning arrester at one end of an insulating connecting rod with a certain length, then installing the other end of the insulating connecting rod on a tower of an overhead transmission line, wherein one end of the insulating connecting rod, which is close to the lightning arrester, transversely extends to one side of the tower, and a cavity penetrating through two end faces of the insulating connecting rod is arranged in the insulating connecting rod; and then, penetrating a connecting wire into the cavity of the insulating connecting rod, wherein one end of the connecting wire is electrically connected with the tower, and the other end of the connecting wire is electrically connected with the lightning arrester.
2. The method of installing a safety type arrester according to claim 1, wherein one end of an insulating connecting rod is connected to the tower by a first connecting member, and the arrester is installed at the other end of the insulating connecting rod by a second connecting member, and the first connecting member and/or the second connecting member is a detachable connecting member.
3. The method for installing the safety type lightning arrester according to claim 2, wherein the second connecting member is a conductive metal member, the second connecting member is electrically connected with the lightning arrester, a conductive connecting plate connected with the second connecting member is arranged on an end face of one end of the insulating connecting rod, which is close to the lightning arrester, and when the connecting wire penetrates into the cavity in the insulating connecting rod, the connecting wire abuts against the conductive connecting plate.
4. The method of installing a safety arrestor as set forth in claim 1, wherein the arrestor is a tube arrestor.
CN202010121932.7A 2020-02-26 2020-02-26 Installation method of safety lightning arrester Active CN111200268B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010121932.7A CN111200268B (en) 2020-02-26 2020-02-26 Installation method of safety lightning arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010121932.7A CN111200268B (en) 2020-02-26 2020-02-26 Installation method of safety lightning arrester

Publications (2)

Publication Number Publication Date
CN111200268A true CN111200268A (en) 2020-05-26
CN111200268B CN111200268B (en) 2021-06-29

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CN202010121932.7A Active CN111200268B (en) 2020-02-26 2020-02-26 Installation method of safety lightning arrester

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358000A (en) * 2021-06-17 2021-09-07 广东电网有限责任公司 Air gap measuring method of gap arrester

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699573A (en) * 2009-10-24 2010-04-28 山东迅实电气有限公司 Lightning arrester insulator for overhead wire insulated conductor
CN205452789U (en) * 2015-12-22 2016-08-10 国网上海市电力公司 Lightning protection device
CN208299202U (en) * 2018-06-29 2018-12-28 德基申(厦门)电气有限公司 A kind of arrester
KR101996495B1 (en) * 2019-03-15 2019-07-04 (주)한빛전력기술단 Connecting Equipment Of Aerial Distribution Line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699573A (en) * 2009-10-24 2010-04-28 山东迅实电气有限公司 Lightning arrester insulator for overhead wire insulated conductor
CN205452789U (en) * 2015-12-22 2016-08-10 国网上海市电力公司 Lightning protection device
CN208299202U (en) * 2018-06-29 2018-12-28 德基申(厦门)电气有限公司 A kind of arrester
KR101996495B1 (en) * 2019-03-15 2019-07-04 (주)한빛전력기술단 Connecting Equipment Of Aerial Distribution Line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113358000A (en) * 2021-06-17 2021-09-07 广东电网有限责任公司 Air gap measuring method of gap arrester

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