Combination tool for charged elimination of heating defect of drainage plate of transmission line through ground potential method

Abstract

The invention relates to a combination tool for charged elimination of a heating defect of a drainage plate of a transmission line through a ground potential method. The combination tool is widely applied to the work of eliminating the heating defect of the drainage plate of the transmission line through the ground potential method and belongs to the technical field of live overhaul sites of the transmission line. The combination tool comprises a clamping part and an insulated operating rod for controlling the clamping part to work, wherein the clamping part comprises a mother board and a daughter board located below the mother board; the daughter board is connected with the mother board through a daughter board connecting rod; an ejector pin screw sleeve is arranged at the bottom of the mother board; a fixing column is arranged at the lower part of the ejector pin screw sleeve; two through bolts are arranged on an outer wall of the fixing column; a rotary ejector pin is screwed into the fixing column; the insulated operating rod comprises a metal head inserted through a bolt; an intermedium ring sleeves the outside of the metal head; a locking ring sleeves the outside of the intermedium ring; and an outer tube I and an outer tube II sleeve the outside along an insulated transmission rod. The combination tool is simple in structure, convenient to install, safe, reliable and wide in application range, the live working efficiency is improved and the security risk of operating personnel is reduced.

Description

technical field [0001] The invention relates to a combined tool for eliminating the heating defect of the diversion plate of a transmission line with live potential charging, which is widely used in the work of eliminating the heating defect of the diversion plate by the ground potential method of the transmission line, and belongs to the field technical field of live maintenance of the transmission line. Background technique [0002] As the artery of the power system, the overhead transmission line is the basis for the safe operation of the power grid. However, since the transmission lines are exposed to the wild all year round, they are often subject to meteorological disasters, man-made external damage, and aging of the lines themselves, which pose a threat to the safe operation of the transmission lines. Such as lightning strikes and flashovers in thunderstorms, icing hazards in winter, bird damage in the sky, stress damage caused by the tension of the line itself, and i...

AI Technical Summary

Problems solved by technology

[0005] However, the form of the transmission tower and the distribution of the wires have a great impact on the implementation of the equipotential live work. When the angle of the corner tower exceeds 30 degrees, the first phase on the inner corner side cannot be operated by the flat ladder method. When the wires are disposed and arranged, the upper phase and the The middle phase cannot be operated by the traditional equipotential method

At the same time, the severity of the heating of the drainage plate also directly affects whether the equipotential live work can be carried out. When the heating temperature exceeds 65 degrees, it cannot be carried out through the equipotential method.

According to statistics, in the first half of 2017, a city had a total of 27 heating problems of wire clamps, 21 times of equipotential live work was solved, and 4 times of live work could not be performed due to reasons such as the form of pole towers and inferior heating phases. Due to the high temperature of wire clamps, personnel Unable to eliminate defects 3 times through the equipotential operation method

At the same time, there are problems such as high skill level and physical strength requirements of operators, long working hours and high risk factor in equipotential live defect elimination.

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