Part 2-2 of IEC 61558 covers 1 000 fixed or portable, single-phase or multi-phase alternating current.
KS C IEC 61558-2-2:2002 history
2022KS C IEC 61558-2-2-2022 Safety of power transformers, power supply units and similar devices-Part 2-2:Particular requirements for control transformers
2017KS C IEC 61558-2-2:2017 Safety of power transformers, power supply units and similar devices-Part 2-2:Particular requirements for control transformers
2002KS C IEC 61558-2-2:2002 Safety of power transformers, power supply units and similar devices-Part 2-2:Particular requirements for control transformers