Replacement method of 10kV distribution network strain insulator string

A technology of tensile insulator string and replacement method, applied in the direction of overhead line/cable equipment, etc., can solve problems such as the existence of insulating gloves operation method and potential safety hazards, and achieve the promotion of application scope, improvement of service life, improvement of operation efficiency and operation safety. sexual effect

Active Publication Date: 2019-07-12
STATE GRID ZHEJIANG CIXI POWER SUPPLY +1
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a replacement method for 10kV distribution network tension insulator strings, to solve the technical problem of the existing domestic distribution network installations due to the compact space and the hidden safety hazards in the insulating glove operation method

Method used

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Embodiment Construction

[0018] A method for replacing tension insulator strings in a 10kV distribution network, including operating tools, the operating tools include an insulating suspension rod, a soft bag, a power traction device, an insulating wire tightener, a hand-held operating lever, a spring lock dismounting pliers, a clamp The operating rod of the wire guide, the installation hook and the wire clamp of the insulating rod, the replacement method includes the following steps in turn:

[0019] Step 1: Check the operation of the line and confirm that the line operates normally without ground faults;

[0020] Step 2: Fix the insulating suspender on the cross arm of the line after the inspection in step 1, and wrap the porcelain bottle in a soft bag and fix it on the insulating suspender;

[0021] Step 3: Use the power traction device, insulating wire tightener and insulating rod clamp to make the porcelain bottle string processed in step 2 no longer stressed, and then lift or put down the porcel...

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Abstract

The invention relates to a replacement method of a 10kV distribution network strain insulator string. An operation tool is provided. The method comprises the following steps of: detecting the operation condition of a line, installing an insulation suspender and a flexible bag, relieving the tension of a porcelain bottle string, replacing the porcelain bottle, recovering the stress of the porcelainbottle string, recovering the operation of the device, checking whether the line has no residue or not. The insulation suspender in the operation tool is employed to achieve the function of lifting the porcelain bottle when the porcelain bottle string is replaced to achieve the purposes that operators can replace the porcelain bottle string without direct contact with an electrified body to allowthe operators s to be far away from the lines and equipment with compact 10kV gaps so as o effectively reduce the electric shock risk and the heat stress reaction of the operators, fundamentally reduce the electric shock risk of the distribution network live-line operators, improve the operation efficiency and the operation safety, promote the application range of the distribution network live-line operation and ensure the power supply reliability.

Description

technical field [0001] The invention relates to a method for replacing a tension insulator string of a 10kV distribution network. Background technique [0002] my country's live-line work started in the 1950s, and at present, the insulating glove method is mainly used; in the 26 years from 1959 to 1985, at least 470 accidents occurred, of which 70 people died. , injured 290 people, and even stopped the development of live work on distribution lines for a time. At present, insulated gloves work mainly uses soft insulation shielding and a small amount of hard insulation shielding to avoid the occurrence of accidents due to the narrow space control. When using the insulating gloves operation method to replace the 10KV insulating porcelain bottle string, personnel and electrified bodies If the distance is too close and in a compact power distribution structure, it is easy to cause phase-to-phase, electric shock or arc burn accidents, but the wearing of insulating protective gear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
CPCH02G1/02
Inventor 应永灵童灵华陈德炜朱圣盼肖云佳
Owner STATE GRID ZHEJIANG CIXI POWER SUPPLY
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