Method for repairing break strand of overhead ground wire

Abstract

The present invention relates to a method for repairing a break strand of an overhead ground wire, belonging to the field of overhead ground wire repairing technologies. The method includes the steps that an operator carries a passing rope and climbs to the top of a tower and unties a wire clip of the overhead ground wire, disassembles the overhead ground wire, descends and places the overhead ground wire on a cross arm below the overhead ground wire; the operator on the tower lands the overhead ground wire from the cross arm to a wire at the same side, and firmly suspends the overhead ground wire with a connecting fitting connected on the cross arm; and the operator on the tower and an operator on a wire cooperate to suspend a hanging ladder pulley on the wire, then the operator on the wire rides the hanging ladder pulley and cooperates with a ground controller so as to slide to the break strand of the overhead ground wire to repair the break strand, meanwhile, and a person on the ground controls the overhead ground wire and the wire by using a rope, so as to keep a proper operation distance between the overhead ground wire and the wire. The method for repairing the break strand of the overhead ground wire is applicable to any complex external environment, and can shorten repair time, reduce laborers, and lower labor intensity.

Description

technical field [0001] The invention relates to the technical field of repairing overhead ground wires, in particular to a repair method for realizing repairs on broken strands of overhead ground wires without falling to the ground. Background technique [0002] Transmission lines refer to the power lines connected from power plants to substations and between substations, generally divided into three voltage levels of 35 kV, 110 kV and 220 kV. The transmission line transmits electric energy to the substation, and then the substation is stepped down to become a distribution line used by enterprises, institutions and residents. Once the transmission line is cut off, it will affect the power supply of the entire substation, resulting in large-scale power outages. Therefore, the transmission line It plays a vital role in power supply enterprises. [0003] Overhead ground wire, also known as lightning protection wire, is a "steel strand" made of multiple strands of steel wire. I...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the serious broken strands of overhead ground wires at present, and the direct ladder repair cannot guarantee the personal safety of operators, the present invention provides a repair method for broken strands of overhead ground wires. The overhead ground wire with broken strands can be repaired by hanging ladder block, which can ensure the personal safety of the operators, and can be applied to various geographical environments, and the repair time and labor are less

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