BS EN IEC 62271-103:2023 High-voltage switchgear and controlgear - Alternating current switches for rated voltages above 1 kV up to and including 52 kV
2023BS EN IEC 62271-103:2023 High-voltage switchgear and controlgear - Alternating current switches for rated voltages above 1 kV up to and including 52 kV