Flexible graphite grounding grid

Abstract

The invention discloses a flexible graphite grounding grid, which comprises a plurality of sections of flexible graphite lead wires, and a metal casing pipe used for crimping and connecting the flexible graphite lead wires, wherein one end of each flexible graphite lead wire is crimped and fastened in the metal casing pipe, and the plurality of sections of flexible graphite lead wires are integrally connected through the metal casing pipe. By adopting the flexible graphite lead wires to replace the original metal grounding bodies, the grounding grid has more excellent corrosion resistance; the plurality of flexible graphite lead wires are crimped and interconnected through the metal casing pipe, so that the flexible graphite lead wires are in tight contact with the inner side walls of the metal casing pipe and are not prone to fall off; and the flexible graphite grounding grid has smaller contact resistance at connecting points when compared with that of the traditional grounding grid adopting a welding and interconnecting method, and enhances the conductivity.

Description

technical field [0001] The invention relates to the technical field of grounding grid devices, in particular to a flexible graphite grounding grid. Background technique [0002] At present, most of the grounding grids are metal grounding grids. The metal grounding grids are generally designed to have a service life of 20 to 30 years when they are buried. After 3 to 5 years, some grounding metal surfaces on the grounding grid have been severely corroded. The metal grounding grid is generally welded by multiple grounding bodies, and its corrosion mainly occurs on the metal grounding body itself and the welding points between the grounding bodies. The inrush current makes the grounding grid and power grid face great operational risks, and the operation and maintenance personnel are also very dangerous during the work process. With the increase of electrical accidents caused by the corrosion of the grounding grid, people are paying more and more attention to the research on th...

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Problems solved by technology

[0003] In related technologies, there are also developments of new materials for metal or non-metallic grounding grids at home and abroad, such as copper, galvanized steel, plasma, etc. However, although copper grounding grids have high electrical conductivity, high corrosion resistance, and copper-clad steel High mechanical strength and other advantages, but copper itself is expensive and will accelerate the corrosion of other metals, and after the copper grounding bodies are connected by welding, the entire grounding grid will increase the contact resistance at these welding points, and the conductivity will deteriorate

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