NF C64-471-200*NF EN IEC 62271-200:2021 High-voltage switchgear and controlgear - Part 200 : AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
2021NF C64-471-200*NF EN IEC 62271-200:2021 High-voltage switchgear and controlgear - Part 200 : AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV