method and apparatus for the examination of 2 pin schutzkontaktsteckdosen in verbraucheranlagen with fehlerstromschutzschaltung

摘要

This test instrument successively tests under program control whether the connections, outer conductors, neutral conductors and protective conductors are exchanged or connected to one another. Following this, a reduced nominal fault current is used for determining the earthing resistance and, if this test also shows a good result, the tripping of the fault current switch with nominal fault current can also optionally be tested.