What are the types of ground resistance

What is the ground resistance? It refers to the resistance encountered by the current flowing into the earth through the grounding device and then flowing to another grounding body or spreading to a distance.

The grounding resistance includes the resistance of the grounding wire and the grounding body itself, the contact resistance between the grounding body and the earth, the grounding resistance between two grounding bodies or the grounding resistance from the grounding body to an infinite distance. Here's HMC8410LP2FE.

The grounding resistance directly reflects the degree of excellent contact between the electrical device and the "ground", and also reflects the scale of the grounding network. Under the condition of strong interference single-point grounding system, auxiliary pole measurement method can be used. Ground resistance is classified into the following three types:

1. Grounding protection: The grounding resistance of the metal shell, concrete, and pole of the electrical equipment is set to prevent the electrical insulation damage from being electrified and endangering personal safety.

2. Anti-static grounding: To prevent the dangerous influence of static electricity, and to ease the grounding resistance of fuel oil, natural gas storage tanks and pipelines, electronic equipment, etc.

3. Lightning protection grounding: To introduce lightning into the ground, connect the grounding terminal of lightning protection equipment (such as lightning rods) to the ground to eliminate the damage caused by lightning overvoltage to electrical equipment and personal property. The grounding resistance is also called overvoltage protection grounding.

Then the above is the relevant introduction of the type of grounding resistance. I hope it will be helpful to you. Friends who need electrical components such as resistance are welcome to contact us.

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