Multifunctional grounding device and preparation method thereof

Abstract

The invention discloses a multifunctional earthing device and a production method thereof, belonging to the field of power equipment, and solving the problems of the existing earthing device that the anti-corrosion cost is high and the effect is poor. The earthing device comprise a protective cap, a metal earthing electrode and a cone head; the metal earthing electrode is provided with a terminal post connected with an outgoing wire; and the metal earthing electrode comprises an integrally formed metal nail head and a metal earthing needle; and the cone head is in a star shape. The terminal post and the outgoing wire are connected by welding, the metal earthing electrode is made of an aluminum alloy material, and an anticorrosive layer is arranged outside the metal earthing needle. The production method comprises the steps of preparing a conductive transition liquid and an anti-corrosive liquid, and forming a conductive transition layer and an anti-corrosive layer on the metal earthing needle in a coating manner. The earthing device disclosed by the invention can be used for work earthing, anti-lighting earthing, protection earthing, and control and instrument earthing.

Description

technical field [0001] The invention relates to a multifunctional grounding device and a preparation method thereof, belonging to the field of electric equipment. Background technique [0002] The grounding device refers to the general term for the grounding electrode buried in the ground and the connecting wire from the grounding electrode to the equipment. It has the functions of grounding the working current of electrical equipment and power systems, grounding the lightning current of large devices, equipment, buildings, bridges, etc., and grounding the static current of operating rooms, industrial control rooms, computer rooms, etc. [0003] The grounding device will produce chemical corrosion and electrochemical corrosion in the soil, especially in the soil with soft soil and high water content, which will easily cause the grounding electrode to rust, increase the grounding resistance of the grounding device, and cause the grounding grid to partially break. In recent y...

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Problems solved by technology

Then, although improving the construction technology can reduce the corrosion rate to a certain extent, it cannot fundamentally and effectively solve the anti-corrosion problem of the grounding device for a long time

The cathodic protection method needs to consume metals, requires a large investment, and pollutes the soil; the copper material has strong corrosion resistance, and the copper grounding device has a long service life, but the price is high, and it will cause heavy metal pollution, which will have a huge impact on the surrounding environment

The existing outer layer protection method refers to the use of a covering layer on the surface of the conductor, but in actual engineering applications, the covering layer will inevitably be damaged by various types, localized corrosion will occur, and the probability of metal component perforation will increase. Uniform corrosion on metal component surfaces is more destructive

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