Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS (IEC 62040-1:2008 + Corrigendum Sept. 2008 + A1:2013) (english version)
Electromagnetic compatibility (EMC) - Part 2: Environment - Section 2: Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems— 22 стр.
Electromagnetic compatibility (EMC). Environment. Compatibility levels for low-frequency conducted disturbances and signalling in public low-voltage power supply systems— 34 стр.
Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS (IEC 62040-1:2008 + corrigendum September 2008) (english version)
Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS (IEC 62040-1:2008 + corrigendum September 2008) (english version)