2012NF C64-471-103*NF EN 62271-103:2012 High voltage switchgear and controlgear - Part 103 : switches for rated voltages above 1 kV up to and including 52 kV.
0000 NF C64-165-1:2001
1995NF C64-130:1995 High-voltage switches. Part 1 : high-voltage switches for rated voltages above 1 kv and less than 52 kv.