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IEC

IEC 60034-27-4:2018
En Vigor
2018-01-24
Rotating electrical machines - Part 27-4: Measurement of insulation resistance and polarization index of winding insulation of rotating electrical machines
IEC

IEC 60076-7:2018 RLV
En Vigor
2018-01-12
Power transformers - Part 7: Loading guide for mineral-oil-immersed power transformers
IEC

IEC 60076-11:2018
En Vigor
2018-08-15
Power transformers - Part 11: Dry-type transformers
IEC

IEC TR 62471-4:2022
En Vigor
2022-09-22
Photobiological safety of lamps and lamp systems - Part 4: Measuring methods