IEC 60076-22-1 Ed. 1.0 b:2019
IEC 60076-22-1 Ed. 1.0 b:2019 Power transformers - Part 22-1: Power transformer and reactor fittings ¿¿¿ Protective devices
standard by International Electrotechnical Commission, 01/29/2019
standard by International Electrotechnical Commission, 01/29/2019