DIN IEC/TR 62271-307 VDE 0671-307:2017-04
High-voltage switchgear and controlgear
Part 307: 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
(IEC/TR 62271-307:2015)
Class/Status:
Standard,
valid
Released: 2017-04
VDE Art. No.: 0600146