Grounding body is a very important part of power system, its role is to provide good grounding effect to ensure the safe operation of power system. The grounding body is generally composed of a conductor and a support structure, and the choice of conductor material is very important for the grounding effect.
1. Electrical conductivity
The electrical conductivity of the grounding body is the most important consideration in the selection of materials. The higher the conductivity of the conductor material, the better the grounding effect. Common ground body materials are copper, aluminum and galvanized steel, of which copper is the most commonly used material because of its high electrical conductivity and good electrical conductivity.
2. Corrosion resistance
The grounding body needs to be exposed to a humid environment for a long time, especially the grounding body installed underground, which is more susceptible to corrosion, so the corrosion resistance is also an important consideration in the selection of materials. Common corrosion resistant materials are copper, galvanized steel, stainless steel and so on.
3. Reliability
The role of the grounding body in the power system is very important, so its reliability is also one of the considerations in the selection of materials. Common ground body materials are copper ground body, steel ground body and magnesium aluminum alloy ground body. In actual use, it is also necessary to consider factors such as the lightning protection performance of the grounding body.
1. Good electrical conductivity: The grounding wire material should have excellent electrical conductivity to ensure the reliability of grounding.
2. Strong corrosion resistance: Because the ground wire is mostly installed outdoors, it needs to withstand harsh environmental conditions, so its material must have excellent corrosion resistance.
3. Good durability: In order to ensure the long-term use effect of the grounding wire, the grounding wire material should have excellent durability.




1. Copper ground wire: Copper is an excellent conductive material, with very good electrical conductivity and high corrosion resistance. Widely used in buildings, machines and other electrical equipment grounding wire.
2. Aluminum grounding wire: Aluminum grounding wire is slightly weaker than copper grounding wire in terms of electrical conductivity, but has higher corrosion resistance and better durability. It is widely used in grounding systems under high temperature, high humidity and strong corrosive environment.
3. Galvanized steel grounding wire: Galvanized steel grounding wire has good corrosion resistance and high strength, suitable for use in large buildings and other places requiring long span.