DIN VDE 0281-1:2003 Cables of rated voltages up to and including 450/750 V and having thermoplastic insulation - Part 1: General requirements; German version HD 21.1 S4:2002
2012DIN EN 50525-1:2012 Electric cables - Low voltage energy cables of rated voltages up to and including 450/750 V (U<(Index)0>/U) - Part 1: General requirements; German version EN 50525-1:2011
2003DIN VDE 0281-1:2003 Cables of rated voltages up to and including 450/750 V and having thermoplastic insulation - Part 1: General requirements; German version HD 21.1 S4:2002