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General Grounding

Grounding Electrode Test Wells

The purpose of a ground test well is two-fold: to be able to quickly and easily measure resistance-to-ground of the grounding electrode...

General Grounding

The Zone of Influence

An important concept as to how efficiently grounding electrodes discharge electrons into the earth is called “the zone of influence”,...

Grounding Essentials

Why are 94Hz, 105Hz, 111Hz, and 128Hz frequencies used...

Numerous studies going back many decades have shown that ground resistance measurements should be conducted using a true Direct-Current...

General Grounding

What are some different types of grounding electrodes?

The National Electric Code requires that the grounding electrodes be tested to ensure that they are under 25-ohms resistance-to-ground...

General Grounding

Which ground or earthing rod should I use for my site?

Ground / Earthing rods (electrodes) are typically comprised of steel with a thin coating of copper or zinc (galvanized) to protect...

Grounding Essentials

What Is Electrical Grounding?

Grounding is used to protect that person. By connecting a green ground wire from the metal frame of the refrigerator, if the chassis...