Appropriate Width Adjustable Laying Method of High Voltage Large Section Cable Line

Abstract

A method for laying a high-voltage large-section cable to fit the width is characterized in that that method comprises the following steps of: a cable support is arranged in a channel in which the cable is required to be laid; inserting an insertion portion of the plug-in fixture into the inside of the cable holder; inserting a cross bar radius type back screw brace into the back screw brace fixing hole of the plug-in type fixing device to fix the cross bar of the scaffold; erecting a vertical back screw brace on the cross-bar radial back screw brace to form a radial I-shaped rack; arranging alow friction pulley on the backscrew brace of the crossbar radius type; Adjusting the position of the vertical back-screw brace on the cross-bar radial back-screw brace according to the site environment so as to give up half of the passage space; Laying the cable on the low friction pulley. The invention solves the defects that the method for laying a high-voltage large-section cable to fit the width lacks the fulcrum, and the working channel of the worker is narrow, which leads to the low working efficiency and the difficulty of the first aid escape.

Description

technical field [0001] The invention relates to a laying method of a high-voltage large-section cable line with an adjustable width, which belongs to the technical field of cable laying. Background technique [0002] In recent years, the cable application of urban power transmission and distribution lines in my country has become a significant development trend. Jiangsu Province has put into operation a total length of more than 100,000 kilometers, ranking first in the country. Among them, the length of 110 and 220kV cable lines has reached 3,809 kilometers, becoming One of the main transmission forms of urban power supply. Among them, high-voltage large-section cables occupy the majority. The power supply reliability of this type of cable line is extremely high. Once a fault is repaired, it will take a long time and cost high, causing huge social impact and economic losses. [0003] High-voltage cables with large cross-sections are heavy, such as 220kV conductors with a cr...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a high-voltage large-section cable line adjustable width-adjustable laying method, and to solve the problem that the high-voltage large-section cable line adjustable width-adjustable laying method lacks a fulcrum and cannot be realized. The defect of changing the diameter to the radius type I-frame erection; providing greater walking space for the laying personnel, improving work efficiency, and avoiding the hidden dangers of emergency escape difficulties

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