DIN EN 60439-1 Bb.2:2009 Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies - Guide for testing under conditions of arcing due to an internal fault (IEC/TR 61641:2008)
2009DIN EN 60439-1 Bb.2:2009 Low-voltage switchgear and controlgear assemblies - Part 1: Type-tested and partially type-tested assemblies - Guide for testing under conditions of arcing due to an internal fault (IEC/TR 61641:2008)