Safety of transformers, reactors, power supply units and combinations thereof—Part 11: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V
Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V—Part 17:Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units