Modified silicate grounding module and manufacturing method and manufacturing mold thereof

Abstract

The invention provides a modified silicate grounding module group and a manufacturing method and a manufacturing mold thereof. The module group comprises grounding modules which are sequentially connected through connecting wires, wherein each module comprises a metal core material and a modified silicate composite layer coating the metal core material, and the upper end of the metal core materialpenetrates through the modified silicate composite layer and is connected with the connecting wire through a connecting piece. According to the technical scheme provided by the invention, the grounding modules formed by the metal core material and the composite layer are sequentially connected to form the grounding module group; the hygroscopicity and adhesiveness of the composite layer are better than those of metal, and the compactness of the composite layer bonded with soil is better than that of the metal, so that the contact resistance between the grounding module group and the soil andthe grounding resistance of the grounding module group are reduced; and the composite material can play a role in protecting the metal, so that the corrosion of the metal is avoided, the corrosion resistance of the whole grounding module group is improved, and the service life of the grounding module group is greatly prolonged.

Description

technical field [0001] The invention relates to a grounding module, in particular to a modified silicate grounding module, a manufacturing method thereof and a manufacturing mold. Background technique [0002] With the development of science and technology, the demand for electricity in the society is increasing and the requirements are getting higher and higher. While electricity brings great convenience to human beings, people pay more and more attention to its safety. Lightning is an important factor that seriously threatens the safe and reliable operation of the power system. It can easily cause the tripping of transmission lines, which will bring huge economic losses to the society. Therefore, people have been vigorously studying the method of improving lightning tripping of transmission lines, and effectively reducing the grounding resistance of towers has been proved to be a measure with the best effect and the highest feasibility. [0003] The grounding of power tra...

AI Technical Summary

Problems solved by technology

Since the metal grounding material is not homogeneous with the soil, the contact between the metal material and the soil is not dense after construction, and the contact resistance is large. In some places with high soil resistivity or inconvenient construction, it is difficult to achieve it with only traditional metal grounding materials. Requirements, not only the laying length needs to be lengthened, the construction excavation volume is large, but resistance-reducing materials need to be laid to meet the grounding resistance requirements

In addition, the biggest bottleneck problem of metal grounding materials is the corrosion of grounding materials. Even if stainless steel or copper-clad steel and other metal materials with anti-corrosion measures are used, due to wear during transportation or construction, the anti-corrosion measures for welding parts are not in place. There will be pitting corrosion, etc.

When using resistance-reducing materials to assist in reducing resistance, the corrosion of internal metal materials will be accelerated. The resistance-reducing effect is good in the first few years after the completion of the project. Afterwards, due to the accelerated corrosion, the grounding resistance will gradually increase, and the grounding effect will become worse and worse.

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