Iec 61557-16:2023, 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 16
Iec 61557-14:2023, 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 14