Electrical safety testers : Measuring earth resistances

Measuring earth resistances
Electrical safety testers

Authors : André LECONTE, Bernard KANTOROWSKI

Publication date: December 10, 2004 | Lire en français

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4. Measuring earth resistances

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

(1) - EDF H 115 - Principe de conception et de réalisation des mises à la terre - (1984).
(2) - MASSAT (M.) - Mesure du module de l'impédance de terre en fonction de la fréquence - . Direction technique de TDF....

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