IEC 61558-2-13-2009
电压<1100 V用变压器、电抗器、电源装置及类似设备的安全性.第2-13部分:自动变压器用专用要求和并入自动变压器的电源装置
Safety of transformers, reactors, power supply units and similar products for voltages up to 1100 V - Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers