开关电源适配器
什么叫I类产品，什么叫II类产品，针对开关电源怎么分类 根据EN60950-1:2006的定义CLASS I EQUIPMENT
equipment where protection against electric shock is achieved by
− using BASIC INSULATION and
− providing a means of connection to the PROTECTIVE EARTHING CONDUCTOR in the building
wiring those conductive parts that are otherwise capable of assuming HAZARDOUS
VOLTAGES if the BASIC INSULATION fails
NOTE CLASS I EQUIPMENT may have parts with DOUBLE INSULATION or REINFORCED INSULATION.
1.2.4.2
CLASS II EQUIPMENT
equipment in which protection against electric shock does not rely on BASIC INSULATION only,
but in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED
INSULATION are provided, there being no reliance on protective earthing 一般来说3插头的是1类，2插头的是2类，当然你的插头不能是做来好看的，是要有有效接地的。 还是去理解一下定义，这样会好点！ GB 4706.1里有解释
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