Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement

A technology of vertical arrangement and insulator strings, which is applied in the direction of overhead lines/cable equipment, etc., and can solve problems such as the difficulty in completing the ground potential replacement operation of double strings of vertically arranged insulator strings for strain resistance

Active Publication Date: 2011-11-02
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The assembly weight of the existing double-split wire fixture is about 15-25kg, that is to say, the No. 1 electrician must bear the force of nearly 100 kilograms to meet the requirements of indirect assembly of live fixtures, so the existing technology is difficult to complete the tensile double Ground Potential Replacement Operation of Vertically Arranged Strings of Insulators

Method used

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  • Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement
  • Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement
  • Method for replacing ground potentials of tension insulator string in vertical dual-string arrangement

Examples

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Effect test

Embodiment 1

[0043] A method for replacing the ground potential of tension-resistant double-string vertically arranged insulator strings, which includes a front card that can realize long-distance indirect installation and locking, an insulating pull plate used in conjunction with the front card with a locking device, and a fastening screw rod , back card;

[0044] First set the locking device on the front card to the unlocked state, then install the front card independently at the designated position, the operator snaps the insulating pull plate into the front card through the operating rod, and the operator snaps the insulating pull plate into the front card through the operating rod The front card, and operate the insulating pull plate to adjust to the required length, and then lock the locking device on the front card to complete the installation of the left and right insulating pull plates, and then install the rear card on the side triangle of the transom. After the screw rod of the ...

Embodiment 2

[0048] A method for replacing the ground potential of tension-resistant double-string vertically arranged insulator strings, which includes a front card that can realize long-distance indirect installation and locking, an insulating pull plate used in conjunction with the front card with a locking device, and a fastening screw rod , back card;

[0049] First set the locking device on the front card to the unlocked state, then install the front card independently at the designated position, the operator snaps the insulating pull rod into the front card through the operating lever, and the operator snaps the insulating pull rod into the front card through the operating rod The front card is adjusted to the required length by operating the insulating rod, and then the locking device on the front card is locked to complete the installation of the left and right insulating pull plates. After the screw rod of the rear card is connected with the insulating pull rod, tighten the left ...

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Abstract

The invention discloses a method for replacing ground potentials of a tension insulator string in vertical dual-string arrangement, and the method comprises the following steps: setting a locking device on a front clamp in an unlocking state; installing the front clamp on an assigned position independently; using an operating arm to clamp insulated pulling plates or pulling rods into the front clamp by an operator and then adjusting the insulated pulling plates or pulling rods to the required length by the operator; locking the locking device on the front clamp to finish the installation of the left and right insulated pulling plates or pulling rods; installing a back clamp on a triangle connecting plate at a crosspiece side; connecting lead screws of the back clamp with the insulated pulling plates or pulling rods and then fastening the lead screws at the left and right sides, thus conductor insulators are not strained; then operating the insulation operating arm to stop the operation; and finally taking out the insulators so as to install new insulators at the assigned positions, and then loosening a fixture. The whole fixture is disassembled to be partially installed on electrically-operated double bundle conductors in a vertical arrangement mode, thus solving the problem that the ground potential hot line operation can not be realized by using the traditional construction technologies.

Description

technical field [0001] The invention relates to a method for replacing the ground potential of insulator strings, in particular to a method for replacing the ground potential of insulator strings arranged vertically in double tension strings. [0002] Background technique [0003] The most critical factor in the ground potential live replacement operation is the overall weight of the clamp. The fastened ground potential live work clamp is usually assembled on the ground, and then the clamp is manually hoisted into the cross arm and the wire end. When working, the problem that arises at this time is that the weight of the assembled live fixture is not light. The heavier the fixture, the more difficult the construction. The assembly weight of the existing double-split wire fixture is about 15-25kg, that is to say, the No. 1 electrician must bear the force of nearly 100 kilograms to meet the requirements of indirect assembly of live fixtures, so the existing te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/02
Inventor 陈杰
Owner STATE GRID CORP OF CHINA
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