Draft Document - Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing (IEC 22F/687/CD:2022); Text in German and English
Instrument transformers for 50 Hz, U<(Index)m> 0.72 kV to 52 kV - Part 2: Current transformers U<(Index)m> = 0.72 kV and U<(Index)m> = 1.2 kV - Main dimensions
Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits (IEC 61010-2-030:2017, modified); German version EN IEC 61010-2-030:2021 + A11:2021
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 2: Insulation resistance (IEC 61557-2:2019); German version EN IEC 61557-2:2021