1. The main material of the grounding module
is similar to the physical structure of the soil and can be integrated with the soil. It makes the effective contact area between grounding body and soil many times larger than that of metal grounding body, enlarges the effective diversion area of grounding body, and greatly reduces the contact resistance between grounding body and soil. Therefore, it can significantly improve the grounding efficiency and reduce the land area occupied by grounding net.
2. The grounding module itself has a strong ability of moisture absorption and moisturization, which keeps the soil around it moist and ensures that the grounding module plays an effective role in conducting electricity. At the same time, the conductivity of the conductor in the grounding body is not affected by seasonal variations such as dry humidity, high and low temperature. Therefore, a stable grounding resistance can be provided.
3. The non-metallic material of the grounding module forms a low resistance region between the metal and the soil whose resistivity varies greatly. When high current impulse occurs, the transient potential gradient of grounding body and grounding wire can be reduced, the step voltage and contact voltage can be reduced, and the probability of ground potential counterattack can be reduced.
4. The main body of grounding module is anti-corrosive material. The surface of its metal skeleton is anti-corrosive metal material. Therefore, the grounding body has excellent anti-corrosive performance, and its service life is more than 30 years.
5. The grounding module
can be buried vertically or horizontally, and the buried depth is generally 0.8-1.0 meters. With strong moisture retention, hygroscopicity and stable conductivity, the contact resistance between metal grounding body and the earth will be greatly reduced through the peripheral non-metallic modular materials to achieve good resistance reduction.