4. Measuring earth resistances
4.1 Different aspects of earth resistance measurements
4.1.1 Definitions and basic methods
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Definition
The floor is an equipotential conductor in the absence of current flow.
The equipotential safety network of an installation is connected to it by means of an earth connection or an earth network. When a current I flows through this earth connection due to a fault in the distribution network or an atmospheric discharge, a voltage U is generated...
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Measuring earth resistances
Loop resistance measurement
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