Downward evacuation rescuing method of power transmission line in electrified condition

Abstract

The invention discloses a downward evacuation rescuing method of a power transmission line in an electrified condition. The downward evacuation rescuing method comprises the steps of making self protection while waiting for a potential rescuing staff carried with a rescuing main rope and a safety short rope to arrive at a position above a trapped wire of a trapped person; waiting for the potentialrescuing staff to set an individual protection station above an operation and to connect the safety short rope; enabling a ground rescuing staff to hook a decline protector into a safety belt protection ring in advance, and locking a lock door; after the rescuing main rope end falls on the ground, making an anti-releasing tie, selecting a proper position to install the rescuing main rope on the decline protector, and performing self inspection and preparing protection preparation; waiting for the potential rescuing staff carried with the rescuing main rope end to decline to the position of the trapped person along the safety short rope by using the decline protector; enabling a main lock on the rescuing main rope end to be connected to a back part hanging point of the safety belt of the trapped person; waiting for the potential rescuing staff and the ground rescuing staff to cooperatively transfer the trapped person to the main rope; and enabling the ground rescuing staff to release the rescuing main rope at uniform velocity by using the decline protector to evacuate the trapped person to the ground to be taken over by other rescuing staffs on the ground so as to complete rescuing.

Description

technical field [0001] The invention discloses an emergency rescue method for downward evacuation of a high-altitude line, in particular to a downward evacuation rescue method for a transmission line under electrification. Background technique [0002] In recent years, my country's UHV and EHV power grids have been constructed and put into operation on a large scale. UHV and EHV transmission lines have the characteristics of wide regional span, high distance to the ground, complex path environment, "three spans" (crossing high-speed railways, expressways and important transmission channels), high risk, and changeable meteorological disasters. The State Grid Corporation of China and various transmission line construction, operation and maintenance units have formulated and implemented a series of control measures to prevent falls from heights; During the operation, the operator may still fall from a height due to unexpected situations such as physical condition, working envi...

AI Technical Summary

Problems solved by technology

Most of the power transmission lines are located in remote areas in the wild. Due to factors such as terrain, micro-weather, line electrification, wire elasticity, and road traffic, conventional rescue methods such as high-altitude tools, high-altitude rescue vehicles, and helicopters are often limited;

[0003] And because high-altitude rescue of transmission lines is different from ordinary high-rise building (structure) rescue, rescuers often need to have special skills such as iron tower climbing, live work, wire shifting, etc. Social rescue forces (armed police, fire brigade, civil rescue teams, etc.) ) often have insufficient mastery of the special skills of high-altitude rescue on the line, and cannot effectively carry out rescue work

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