标题: BS EN 61558-2-13-2009 [打印本页] 作者: liuxilin1215 时间: 2014-8-31 12:09:58 标题: BS EN 61558-2-13-2009
BS EN 61558-2-13-2009 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V — Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers