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本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑
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你的这段话是出自哪个标准?怎么我看到的是这样的:
4 g3 C. c1 C \" |9 r3.3.12
% P! [* Q, |: A D$ H5 eclass III appliance
* k- F7 j. o0 c8 G1 `appliance in which protection against electric shock relies on supply at safety extra-low 1 X& U3 V& L6 v& R; w2 Y% b3 l3 R5 j0 X
voltage and in which voltages higher than those of safety extra-low voltage are not
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4 V; f5 w: D0 x3 a& r o4 p+ n5 V3 sNOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. ' d9 f6 M# Q2 \. m; x6 v9 J/ Q
n3 u- Q: V! V但是IEC60335-1里还有这样一句:2 a# h; a! v$ F1 x+ `- U
6.1 Appliances shall be of one of the following classes with respect to protection against & _ e. g0 F; n+ J! t" x! v" S
electric shock: $ ~: ?1 x+ W3 j4 t
class 0, class 0I, class I, class II, class III.
/ {- X& m9 t ^4 sIf an appliance consists of a part of class III construction and a detachable power supply " w( n( s5 c2 v
part, the complete appliance is classified as a class I appliance or class II appliance in 8 A( x6 u) E9 M ?+ J
accordance with the classification applicable to its detachable power supply part.
+ \6 }7 D) ~4 Z1 E" y9 E% {如果按6.1的定义就是三类结构+可拆式适配器,整机的防护等级就取决于适配器的防护等级了,不是一类就是二类,不可能是三类。
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