EN 61558-2-4-2009 电源电压1100V以下的变压器,电抗器,电源装置和类似产品的安全.第2-4部分:隔离变压器和装有隔离变压器的电源装置的特殊要求和试验
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V - Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers