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Choice of Earth Leakage protection devices

Choice of sensitivity
The sensitivity of an earth leakage protection device depends mainly on the function it has to perform:
  • Protection from electric shock by direct contact.
  • Protection from electric shock by indirect contact.
  • Protection from fire due to current leakage.
The following table gives a reminder of:
  • The circuits that must be protected against these various risks (obligation or recommendation).
  • The type of earth leakage protection device to be used in each case, its sensitivity, and its location in the distribution diagram.
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