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Everything you need to know about earth/ground measurement

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In every domestic or industrial installation, connection to an earth electrode is one of the basic rules to ensure that the electrical network is safe.
The absence of an earth connection can endanger people's lives and cause damage to electrical installations and other property. On its own, however, it is not enough to guarantee total safety. Only regular tests can prove that the electrical installation is operating correctly.

There are many earth measurement methods available, depending on the type of neutral system, the type of installation (domestic, industrial, urban, rural, etc), the possibility of cutting off the power to the installation, etc.