This standard is Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air; Corrigendum 1-2000.
IEC 60076-3/COR1:2000 history
2018IEC 60076-3:2013/AMD1:2018 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
1970IEC 60076-3:2018 Power transformers. Part 3 : Insulation levels and dielectric tests
2013IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
1970IEC 60076-3:2000/COR1:2000 Corrigendum 1 - Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
2000IEC 60076-3:2000 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
1970IEC 60076-3:1980/AMD1:1981 Amendment 1 - Power transformers - Part 3: Insulation levels and dielectric tests
1980IEC 60076-3:1980 Power transformers. Part 3 : Insulation levels and dielectric tests
IEC 60076-3/COR1:2000 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air was changed to IEC 60076-3:2013 Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air.