Automatic electrical controls -- Part 2-9: Particular requirements for temperature sensing control ((IEC 60730-2-9:2015 + A1:2018) EN IEC 60730-2-9:2019 + A1:2019) (english version)
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures -- Part 8: Insulation monitoring devices for IT systems (IEC 61557-8:2014) (english version)
Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests (IEC 61558-1:2017) (english version)
