DIN EN IEC 60370:2018 Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes - Electric breakdown methods (IEC 60370:2017); German version EN IEC 60370:2018
2018DIN EN IEC 60370:2018 Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes - Electric breakdown methods (IEC 60370:2017); German version EN IEC 60370:2018
1994DIN IEC 60370:1994 Test procedure for thermal endurance of insulating varnishes - Electric strength method (IEC 60370:1971); German version HD 570 S1:1990