PD CLC IEC/TR 62271-307:2019 : Title: High-voltage switchgear and controlgear Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV Pages: 52 Year: Publisher: British Standards Institution Availability: Within 1-2 working days
BSI will directly send the standards to End-User after our confirmation.