标题: 变压器 [打印本页] 作者: zjh407 时间: 2012-2-1 12:38 标题: 变压器 求变压器的美国标准!!谢谢作者: oahemr 时间: 2012-2-1 12:38
Toy Transformers UL 697
Low Voltage Transformers - Part 1: General Requirements 5085-1
Low Voltage Transformers - Part 2: General Purpose Transformers 5085-2
Low Voltage Transformers - Part 3: Class 2 and Class 3 Transformers 5085-3