BS EN 60947-6-2. Low-voltage switchgear and controlgear. Part 6-2. Multiple function equipment. Control and protective switching devices (or equipment) (CPS)— 59 стр.
Components for low-voltage surge protection. Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)— 26 стр.
Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests (IEC 61558-1:2005 + A1:2009) (english version)
Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters (IEC 61803:1999 + A1:2010) (english version)
High-voltage switchgear and controlgear -- Part 212: Compact Equipment Assembly for Distribution Substation (CEADS) (IEC 62271-212:2016) (english version)