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Direct-current 500kV circuit lower composite insulator flexible ladder

A technology of synthesizing insulators and ladders, applied to overhead lines/cable equipment, ladders, buildings, etc., can solve the problems of climbers panic, easy rotation and shaking when descending ladders, hidden safety hazards, etc., to increase the anti-rotation performance and avoid falling Casualty accidents, easy installation effect

Active Publication Date: 2012-12-12
ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that it is easy to rotate and shake when going down the ladder, causing panic to climbers, and there is a great potential safety hazard

Method used

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  • Direct-current 500kV circuit lower composite insulator flexible ladder
  • Direct-current 500kV circuit lower composite insulator flexible ladder
  • Direct-current 500kV circuit lower composite insulator flexible ladder

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0017] See figure 1 , figure 2 , image 3 , is a structural schematic diagram of an embodiment of a composite insulator soft ladder under a direct current 500kV line of the present invention, including an upper hanging point 1, a lower single hook 2, a sling 3 and a pedal crossbar 4, the upper hanging point 1 is a double hanging point, and two upper hanging points 1 They are connected by insulating slats 5, and there are long holes on the insulating slats 5, which can realize the adjustment of the distance between the two upper hanging points 1. In order to improve the anti-rotation performance of the soft ladder, the width of the lower single hook 2 is 150-200mm , pedal crossbar 4 widths are 300-350mm; During use, lower single hook 2 is hooked on the lead 22, and upper hanging point 1 is hung on the cross-arm angle steel 9.

[0018] The upper...

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PUM

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Abstract

The invention relates to the field of maintenance operation on an electric pole and tower, and in particular relates to a direct-current 500kV circuit lower composite insulator flexible ladder which comprises upper hanging points, a lower single hook, a hanging belt and a pedal cross tie. The direct-current 500kV circuit lower composite insulator flexible ladder is characterized in that the upper hanging points are dual hanging points; the two upper hanging points are connected by an insulation plate bar; the lower single hook has a width of 150-200mm, and the pedal cross tie has a width of 300-350mm; each upper hanging point comprises a hanging body, a hanging belt winding shaft and a winding shaft positioning device; the hanging body corresponding to a cross arm is provided with an opening; the hanging belt winding shaft is movably connected with the hanging body; one end of the hanging belt winding shaft is a polygonal head part, and the other end of the hanging belt winding shaft is connected with the winding shaft positioning device; the hanging belt winding shaft is provided with a through groove; and the end part of the hanging belt is fixed on the through groove. Compared with the prior art, the direct-current 500kV circuit lower composite insulator flexible ladder provided by the invention has the beneficial effects that a dual-hanging-point structure is adopted, the rotation prevention performance of the flexible ladder is increased, the rotation and shaking for the overhauling personnel in descending the ladder are relieved, and the falling down and casualty accidents of the overhauling personnel caused by panic is prevented.

Description

technical field [0001] The invention relates to the field of maintenance work tools on power poles and towers, in particular to a composite insulator soft ladder under a DC 500kV line. Background technique [0002] The lower composite insulator soft ladder used in China at present mostly adopts a structure with a single hanging point at the upper end and a single hook at the lower end. When in use, hook the lower end on the wire first, hook the upper end on the angle steel of the cross arm, and then tighten the sling to allow the maintenance personnel to descend the ladder. Its shortcoming is that it is easy to rotate and shake when going down the soft ladder, which causes the climbers to panic, and there is a great potential safety hazard. Contents of the invention [0003] The purpose of the present invention is to provide a synthetic insulator soft ladder under a DC 500kV line, which avoids the rotation problem when getting off the ladder, is easy to install, and is sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C1/56E06C1/36E06C7/48E06C7/08H02G1/02
Inventor 张德伟刘诚张忠瑞商荣刚韩春成符绍鹏于世忠
Owner ANSHAN POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER COMPANY
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