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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:
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% ?, E2 _& ~" d Lclass III appliance & i8 R4 ?( l+ v/ |. ]2 i- m, b
appliance in which protection against electric shock relies on supply at safety extra-low
% L2 E0 Q; }( h& d0 f/ J- Cvoltage and in which voltages higher than those of safety extra-low voltage are not 1 y6 m4 V; f2 f- C3 ]/ {( ] ^
generated 6 N' `3 w" ~, M
NOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. 7 O, N2 `2 I4 V8 d7 l+ i8 ^) z# U: ?
: a7 p; H( [3 G) }3 P- B8 a3 H但是IEC60335-1里还有这样一句:/ A+ Y# [/ U1 K% O; S
6.1 Appliances shall be of one of the following classes with respect to protection against
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class 0, class 0I, class I, class II, class III.
- J4 Q7 i, J( QIf an appliance consists of a part of class III construction and a detachable power supply
9 i( H; w) M% L- q- r! A! Epart, the complete appliance is classified as a class I appliance or class II appliance in 0 U" d: [4 k, l1 D4 z* V( b- j2 s
accordance with the classification applicable to its detachable power supply part. - z% K" Q0 n# i3 H; V4 O
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。: a& |* U( P4 K, F# l+ R
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