PD IEC TR 62271-312:2021 High-voltage switchgear and controlgear. Guidance for the transferability of type tests of high-voltage/low-voltage prefabricated substations
2021PD IEC TR 62271-312:2021 High-voltage switchgear and controlgear. Guidance for the transferability of type tests of high-voltage/low-voltage prefabricated substations