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

A technology of vertical arrangement of insulator strings, applied in the direction of overhead lines/cable equipment, etc., can solve the problem of difficulty in completing the ground potential replacement of double-string vertically arranged insulator strings

Active Publication Date: 2013-09-18
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

[0038] 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;

[0039] 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

[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 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 the ground potential of tension-resistant double-string vertically arranged insulator strings. Firstly, the locking device on the front card is set in the unlocked state, and then the front card is independently installed at a designated position, and the operator controls the insulator through the operating rod. The pull plate or pull rod is snapped into the front card, and the insulating pull plate or pull rod is adjusted to the required length, and then the locking device on the front card is locked to complete the installation of the left and right insulating pull plates or pull rods, and then the The rear card is installed on the triangular connecting lever on the side of the transom, and the screw rod of the rear card is connected with the insulating pull plate or pull rod. After the completion of the connection, the left and right screw rods are tightened at the same time, so that the wire insulator loses the force, and then the insulation operation lever is operated. Carry out the pin removal work, and finally take out the insulator and replace it with a new insulator, go to the designated position and loosen the clamp to complete the replacement. The invention decomposes the whole set of fixtures into parts and installs them on the vertically arranged double-split conductors running with electricity, so as to solve the problem that the previous construction technology cannot work with electricity at ground potential.

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. Background technique [0002] 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 technology i...

Claims

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Application Information

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