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本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑 % B, @0 e Q( P# V2 r5 g$ L; j- h
" ?% c- A5 W! }" A" ?你的这段话是出自哪个标准?怎么我看到的是这样的:
% q1 Q, W6 o* t3.3.12 " _& v' W! E& T' X5 p- z1 O# S) H
class III appliance
1 i, n& [& |: c: d' \0 q8 x# bappliance in which protection against electric shock relies on supply at safety extra-low
* J& X. B( s2 N' {" `5 Wvoltage and in which voltages higher than those of safety extra-low voltage are not % K% t* x* j5 m Z0 @0 c
generated
8 e% D; K- { ^: |# {NOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. 0 W8 f! ?3 {; Z% b
/ z0 \, j4 U! R但是IEC60335-1里还有这样一句:
$ v, c4 B# R) B: \% F6 |6.1 Appliances shall be of one of the following classes with respect to protection against : w- X3 A1 [% C4 z6 T6 G
electric shock: $ v, }4 b9 I) |! P7 S
class 0, class 0I, class I, class II, class III.
0 f- ?( \, h2 A3 z( j! KIf an appliance consists of a part of class III construction and a detachable power supply
" w( E" K) a" |; Vpart, the complete appliance is classified as a class I appliance or class II appliance in
7 ] ^6 Q. W; W' k3 f/ Qaccordance with the classification applicable to its detachable power supply part. & k: v; H7 Q! p7 E. V* K& V/ `5 `+ 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。* o/ C% N5 U( i6 j0 p2 X
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