Insulating lifting device

Abstract

The invention discloses an insulating lifting device which relates to an insulating lifting device applied to high-voltage (not larger than 750kV) electric checking detection. The insulating lifting device comprises a base, a truss structure and an insulation operating rod, wherein the periphery of the base is provided with a guardrail, and the bottom of the base is provided with a caster wheel; three base sleeves are welded on the surface of the base; three groups of telescopic rods of the truss structure are inserted into the base sleeves and fixed by utilizing locking screws; the insulation operating rod is fixed to the center of the truss structure by a shaft sleeve and a shaft sleeve nut; and the telescopic rods of the truss structure have a sleeve telescopic structure, and the upper sections and the lower sections of the telescopic rods are positioned and connected by spring pins. The invention is simple and convenient for construction and can move, stretch and contract, lighten the working intensity of an operator to a greater extent and prevent the accident of flashover of the insulating lifting device near high-voltage electric equipment due to unstable electroscope handholding and deflection of an insulating rod.

Description

technical field [0001] The invention belongs to the technical field of electric testing devices, in particular to an insulating lifting device for high-voltage electric testing with a voltage not greater than 750KV. Background technique [0002] In the power system, first use the corresponding voltage level of the electroscope to clearly verify whether the power-off equipment is voltage-free, and then perform other operations, which is to prevent the occurrence of vicious accidents such as installing the grounding wire (closing the grounding knife switch) with electricity, accidentally touching the live equipment, etc. One of the main measures. At present, the electroscope is generally composed of an electric inspection indicator and an electric inspection operating rod. The electric inspection indicator mainly completes the signal indication of whether the high-voltage electrical device is live. Effective insulation is formed between the voltage and the human body and the ...

AI Technical Summary

Problems solved by technology

The net distance to the ground of 750KV equipment is very high, and the height of the electrical inspection part to the ground is often about 18 meters, while the traditional single pull-type operating rod can only be applied to the electrical inspection operation of relatively low-position high-voltage electrical devices, and Considering the operating personnel's bearing capacity, the weight and outer diameter of the operating rod are limited, resulting in the limitation of the final stretching length of the operating rod, so the traditional stretching operating rod can no longer meet the actual requirements of the 750KV site

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