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Operation method for live-line installation of 35kV overhead line arrester

A technology for overhead lines and lightning arresters, which is applied in the installation of overhead lines/cable equipment, cables, and lighting conductors, etc. Safety and stability, the effect of reducing economic losses

Inactive Publication Date: 2020-12-11
云南电网有限责任公司输电分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the installation of lightning arresters for 35kV overhead lines can only be carried out when the line is out of power, which requires a long-term power outage of the line, which has a great impact on the continuous power supply and the continuous and stable operation of the line.

Method used

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  • Operation method for live-line installation of 35kV overhead line arrester
  • Operation method for live-line installation of 35kV overhead line arrester
  • Operation method for live-line installation of 35kV overhead line arrester

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Embodiment 1

[0061] Such as Figure 1-7 As shown, the purpose of this embodiment is to provide a live installation method for a 35kV overhead line arrester, including the following steps:

[0062] S1. Conduct on-site survey of the environment of the installation area, and select the pre-installation point;

[0063] S2. Preset, analyze and select the arrester arrangement scheme;

[0064] S3. Analyze the protective effects of lightning arresters in different layout schemes;

[0065] S4. Analysis and selection of lightning arrester models;

[0066] S5. Carry out the lightning arrester live installation operation according to the procedure.

[0067] In this embodiment, in S2, the method flow of preset, analysis and selection of arrester arrangement scheme includes:

[0068] S2.1. Modeling the 35kV high-altitude line;

[0069] S2.2. Use the above model to simulate the lightning resistance level of high-altitude lines;

[0070] S2.3. Use the above simulation results to analyze the influenc...

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Abstract

The invention relates to the technical field of hot-line work, in particular to an operation method for hot-line installation of a 35kV overhead line arrester. The method comprises the steps of on-site survey, arrangement scheme presetting, protection effect analysis, model selection and operation process, during specific operation, an electrician on a tower is located at a cross arm position, firstly, a lightning arrester is fixed to a cross arm support, secondly, a rapid installation wire clamp is connected with a lightning arrester drainage wire, and then the rapid installation wire clamp is locked through a gun-shooting type insulation operation rod; and then the lightning arrester drainage wire is locked through the insulating locking rod to adjust the angle between the rapid installation wire clamp and the operation wire, and finally connection between the lightning arrester and the operation wire is achieved. According to the design of the invention, the installation of the overhead line arrester can be realized under the condition that the line is not powered off, the operation is simple, the safety is high, the economic loss caused by long-time power failure is reduced, continuous power supply to customers is ensured, and the safety and stability of power grid operation are improved.

Description

technical field [0001] The invention relates to the technical field of live work, in particular to a working method for live installation of a 35kV overhead line arrester. Background technique [0002] Overhead transmission lines in areas such as Yunnan and other areas in China are mostly located in high mountains and dense forests. After the rainy season in these areas, lightning is frequent, which has a great impact on the safe and stable operation of transmission lines. 35kV overhead transmission lines are important lines for urban power supply. Safe and stable operation is related to the power supply of the whole city, and the installation of lightning arresters is an important measure to effectively prevent lightning interference. However, at present, the installation of lightning arresters for 35kV overhead lines can only be carried out when the line is out of power, which requires a long-term power outage of the line, which has a great impact on the continuous power s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/04H02G13/00
CPCH02G1/04H02G13/00H02G13/40
Inventor 杨亮李长武弓旭强李正文刘芮孙建强崔傲马大鹏郑瑞东焦鹏达
Owner 云南电网有限责任公司输电分公司
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