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本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑
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) H" j( s; f1 t5 d! e* ^: X$ Z. b你的这段话是出自哪个标准？怎么我看到的是这样的：
4 K3 a5 J& ~+ Z* T0 B3 ]4 l3.3.12
% F6 | M$ Q' uclass III appliance # u- _+ _ @" V: V6 q: T
appliance in which protection against electric shock relies on supply at safety extra-low
$ U6 F2 a! D( o5 F' `" a. o" p9 `voltage and in which voltages higher than those of safety extra-low voltage are not
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NOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. - `8 r \& N# m! W! ^ J
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但是IEC60335-1里还有这样一句：
* E8 `9 X! s$ j3 w8 m" p6.1 Appliances shall be of one of the following classes with respect to protection against
8 N0 T! ?; m1 Pelectric shock: . @3 r" g$ H& Z& R: E, M
class 0, class 0I, class I, class II, class III.
6 ~/ D" |/ W( W, } L8 K& \$ VIf an appliance consists of a part of class III construction and a detachable power supply j0 X0 m' R" J+ j
part, the complete appliance is classified as a class I appliance or class II appliance in
+ j0 y$ X, A' o/ w! i$ A! Y$ jaccordance with the classification applicable to its detachable power supply part.
8 z; t( v" T7 l; O) u7 O0 R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。7 y' F& a# G9 h, P
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发表于 2019-4-9 21:30
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