标题: 开关电源适配器 [打印本页] 作者: bkzhang 时间: 2011-3-1 10:54 标题: 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作者: 安规007 时间: 2011-3-1 11:00
根据EN60950-1:2006的定义, d3 W) O: |+ e# C. {
CLASS I EQUIPMENT 6 k6 H$ m+ S8 Y: }0 Q: t4 _+ k& Wequipment where protection against electric shock is achieved by/ V) B% ?3 v* H& c! B% o- W/ x3 v
− using BASIC INSULATION and* R. I( z$ h. R) N; ?6 j
− providing a means of connection to the PROTECTIVE EARTHING CONDUCTOR in the building 0 `, c' }$ D* u8 X$ j* |& j: I8 Rwiring those conductive parts that are otherwise capable of assuming HAZARDOUS " b ^; {& G9 D& K5 e, `" pVOLTAGES if the BASIC INSULATION fails& V9 A! j4 I8 s* S$ Q
NOTE CLASS I EQUIPMENT may have parts with DOUBLE INSULATION or REINFORCED INSULATION.9 V& E& i! Z' c/ w! c% g
1.2.4.2+ M. H A. T A
CLASS II EQUIPMENT0 I' G& Q f' l3 [8 T' L
equipment in which protection against electric shock does not rely on BASIC INSULATION only, , J8 ]" c1 M" M& w& kbut in which additional safety precautions, such as DOUBLE INSULATION or REINFORCED% n4 @3 ?$ Y0 c
INSULATION are provided, there being no reliance on protective earthing作者: 1100144 时间: 2011-3-1 11:39
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。作者: jonry 时间: 2011-3-1 12:08
还是去理解一下定义，这样会好点！ 作者: nbhaojian 时间: 2011-9-1 15:01
GB 4706.1里有解释
