Insulating and sheathing materials of electric cables - Common test methods - Part 1: General application; Section 2: Thermal ageing methods (IEC 60811-1-2:1985 + Corrigendum May 1986 + A1:1989 + A2:2000); German version EN 60811-1-2:1995 + A2:2000
Draft Document - Electrical strength of insulating materials - Test methods - Part 1: Tests at power frequencies (IEC 112/199/CDV:2011); German version FprEN 60243-1:2011