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本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑 ; |& y9 b+ D& k! l0 w8 l8 {
8 H7 a' p5 Y. b, \. {你的这段话是出自哪个标准？怎么我看到的是这样的：, s5 e; m' a9 a
3.3.12 {. T* a9 S: I% Q7 b$ x
class III appliance + u7 v: U6 a, J/ z
appliance in which protection against electric shock relies on supply at safety extra-low
' m! X; G9 ~, }% i. p, e+ qvoltage and in which voltages higher than those of safety extra-low voltage are not
/ y8 \5 q |: Y$ l% zgenerated
2 J. S+ _7 z J5 Z% y: DNOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. / ^! v b1 M; a1 Q% }2 ~
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但是IEC60335-1里还有这样一句：- ^& v# t; i0 y
6.1 Appliances shall be of one of the following classes with respect to protection against
7 l4 Z6 y, K/ n1 g$ Welectric shock:
" K: I. O" W$ d2 Z/ l+ Gclass 0, class 0I, class I, class II, class III.
* ?: V3 `1 R8 f. f- WIf an appliance consists of a part of class III construction and a detachable power supply
9 e7 d" p* u$ C2 s. M; f& @ B1 ypart, the complete appliance is classified as a class I appliance or class II appliance in
* \# V$ D- F# T) paccordance with the classification applicable to its detachable power supply part.
9 y& j& {# f: X" R; Q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。) a0 ?1 y& x' k+ l
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发表于 2019-4-9 21:30
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