Earth Testing Plant

Being a customer centric organization, we are involved in supplying a supreme quality range of Earth Testing Plant in Navi Mumbai, Maharashtra, India.

A practical earth electrode that provides a low ground resistance is not always easy to obtain. But from experience gained by others you can learn how to set up a reliable system and how to check the resistance value with reasonable accuracy.
As you will see, earth resistivity has an important bearing on electrode resistance, as does the depth, size and shape of the electrode.

The principles and methods of earth resistance testing covered in this section apply to lightning arrester installations as well as to other systems that require low resistance ground connections. Such tests are made in power-generating stations, electrical-distribution systems, industrial plants, and telecommunication systems.

Factors That Can Change Your Minimum Earth Resistance

We will discuss later what value of earth resistance is considered low enough. You'll see that there is no general rule usable for all cases.

First, however, consider following factors that can change the earth electrode requirements from year to year:
Rule no.1

A plant or other electrical facility can expand in size. Also, new plants continue to be built larger and larger. Such changes create different needs in the earth electrode. What was formerly a suitably low earth resistance can become an obsolete standard.