Descending-accompanied evacuation and rescue method of power transmission line under live-line condition

Abstract

The invention discloses a descending-accompanied evacuation and rescue method of a power transmission line under a live-line condition. The evacuation and rescue method comprises the steps of carryingtwo rescue main ropes to reach a position above a wire where a person is trapped by a rescue worker; arranging an upper operation protection station and a rescue rope passage by the rescue worker; transferring a body weight center to a part below the wire by the rescue worker; enabling a descending protector to descend a position above the trapped person and locking the descending protector by the rescue worker; hanging a self-protection rope at a hanging point of a back part of the trapped person, connecting a component force pull set between a main lock of the descending protector and the handing point of a safety belt of the trapped person, hanging the main lock of the descending protector and the back part hanging point of the safety belt of the trapped person, and removing a suspension protection rope of the trapped person; and additionally arranging a friction lock at a rope segment at a braking end of the descending protector, uniformly descending the rescue worker accompaniedwith the trapped person to ground by employing the descending protector, supporting by a worker on the ground, performing safety belt suspension trauma prevention and processing on the trapped personin W-shaped gesture, and completing rescue.

Description

technical field [0001] The invention discloses an evacuation and rescue method accompanied by a power transmission line descending under the condition of 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 environment, and wire torsion. Being suspended in the ai...

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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