Grounding method

Here are some construction methods for performing grounding work.

General grounding method

Driving method

This is a relatively simple construction method, in which the connection type ground rod is simply driven in from the ground. The ground rod is driven from the ground surface to a depth of 1.5 to 3 m. This method is suitable for places where there are no gravel or other obstacles in the ground.

Boring method

It is a method of drilling a hole using a boring machine and filling the electrode and conductive material. The diameter of the drilled hole is 60 to 100 mm and the maximum depth is about 100 m.

Ground copper plate

It is a method of burying a copper plate. The copper plate is buried horizontally or vertically with respect to the ground surface. This method is often used for grounding lightning protection equipment.

Buried ground wire method

It is a method of burying the ground wire (copper wire, etc.) horizontally with respect to the ground surface. There is no fixed construction shape for the ground wire, and it can be embedded in any shape. Among these, the method of laying the ground wire in a mesh is called mesh grounding.

Grounding method using ground resistance reducing material

Cement-based

It is a method of laying conductive concrete containing conductive material around the buried ground wire. It can be applied to a wide range of ground such as mountainous areas and gravel areas.

Electrolyte system

An electrolyte-based ground resistance reducer is used at the construction site to reduce the soil soil resistivity.