DIN EN 60243-1:1999 Electrical strength of insulating materials - Test methods - Part 1: Test at power frequencies (IEC 60243-1:1998); German version EN 60243-1:1998
2014DIN EN 60243-1:2014 Electric strength of insulating materials.Test methods.Part 1: Tests at power frequencies (IEC 60243-1:2013); German version EN 60243-1:2013
1999DIN EN 60243-1:1999 Electrical strength of insulating materials - Test methods - Part 1: Test at power frequencies (IEC 60243-1:1998); German version EN 60243-1:1998