Ground connection structure and grounding method

Abstract

The invention provides an earthing connection structure and an earthing method, and belongs to the technical field of power maintenance. The earthing connection structure provided by the invention comprises a connecting sheet and a connecting fastener, wherein the connecting sheet is provided with a screw hole and a welding through hole which is positioned at the periphery of the screw hole and used for pouring a conducive welding material; and the connecting fastener includes a screw and a first end cap. The earthing method provided by the invention comprises the steps of winding an earthingwire on the end, at which the first end cap is arranged, of the screw; screwing the screw into the screw hole, and enabling the earthing wire to be clamped between the side surface of the earthing sheet and the inner side of the first end cap with a gap; pouring a liquid welding material into the welding through hole, enabling the welding material to be contacted with the earthing wire, quickly screwing up the screw, and enabling the first end cap to abut the earthing wire against the side surface of the connecting sheet. According to the invention, the conductive welding material is injectedinto the welding through hole to fill the gap between the connecting sheet and the earthing wire, so that the contact with air, water or impurities can be avoided while the connection is enhanced, theservice life of earthing is prolonged, and the maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of electric power maintenance, and more specifically relates to a grounding connection structure and a grounding method. Background technique [0002] Grounding (earthing) refers to the neutral point of the power system and electrical devices, the exposed conductive parts of electrical equipment and the conductive parts outside the device are connected to the earth through conductors. It can be divided into working grounding, lightning protection grounding and protective grounding. The working grounding is set according to the operation needs of the power system (such as the neutral point grounding), so under normal circumstances, there will be current flowing through the grounding electrode for a long time, but it is only an unbalanced current of several amperes to tens of amperes. When a ground fault occurs in the system, thousands of amperes of working current will flow through the grounding electrode, b...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a grounding connection structure and a grounding method to solve the technical problem in the prior art that the grounding connection is prone to poor contact due to corrosion or accumulation of debris.

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