Terminology for high-voltage direct current (HVDC) transmission (IEC 60633:1998 + A1:2009 + A2:2015); German version EN 60633:1999 + A1:2009 + A2:2015— 39 стр.
High-voltage switchgear and controlgear -- Part 212: Compact Equipment Assembly for Distribution Substation (CEADS) (IEC 62271-212:2016) (english version)