2013IEC 60243-2:2013 Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
2001IEC 60243-2:2001 Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage
1990IEC 60243-2:1990 Methods of test for electric strength of solid insulating materials; part 2: additional requirements for tests using direct voltage