Grounding device is the general term for grounding body and grounding wire, whose function is to guide lightning current into the ground, and the protection of lightning protection system is largely related to this. The characteristics of grounding engineering itself determine the impact of the surrounding environment on the engineering effect, and it is not feasible to design grounding engineering without considering the specific situation of the project location. Practice requires a systematic grounding theory to guide engineering practice. The quality of the design depends on a comprehensive consideration of various factors related to the local soil environment. Factors such as soil resistivity, soil structure, moisture content, and construction area determine the shape, size, and material selection of the grounding grid. Therefore, the editor of graphite grounding believes that when designing artificial grounding bodies, accurate design should be carried out as much as possible based on the geological conditions such as soil resistivity and soil layer distribution of the grounding grid location.

Grounding electrode: also known as grounding electrode, is a metal conductor or conductor group that directly contacts the soil. Divided into artificial grounding bodies and natural grounding bodies. The grounding body serves as a conductor that is in close contact with the soil and provides electrical connection with the earth, safely dissipating lightning energy and allowing it to leak into the earth.

In grounding design, the use of various metal structures, pipelines, and equipment that are reliably connected to the ground as grounding bodies is called natural grounding bodies. If the resistance of the natural grounding body meets the requirements and does not pose any safety hazards, it can be used as a grounding body in the absence of mandatory regulations.

The conductor buried underground as a grounding device is called an artificial grounding body. Generally, a metal object with a cross-section that meets the grounding requirements is buried underground at a suitable depth, and if the resistance meets the specified requirements, it is used as a grounding body. Specific reference to grounding standards, lightning protection grounding, equipment grounding, electrostatic grounding, etc. need to be distinguished.

Finally, the editor in charge of graphite grounding wants to tell everyone that grounding is the most important link in lightning protection engineering. Whether it is direct lightning protection or the protection technology of electrostatic induction, electromagnetic induction, and lightning wave invasion, the ultimate goal is to send lightning current into the ground. Therefore, without good grounding technology, it is impossible to have a qualified lightning protection process. The function of protective grounding is to establish a good metal connection between the non electrified metal parts of electrical equipment and the grounding body, reduce the ground voltage of the contact, and avoid the risk of electric shock to the human body.