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本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑 8 e8 @& c4 M0 ~7 X& T
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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:. R" o6 d0 A; n2 K2 G2 B
3.3.12 . g% P5 ?9 Y* S
class III appliance
: [5 _; {2 Z4 J, Kappliance in which protection against electric shock relies on supply at safety extra-low
$ W- T1 L) R: {$ c1 ]- I2 bvoltage and in which voltages higher than those of safety extra-low voltage are not
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' T1 V1 p0 y" T. W. ANOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. . b' f# a/ q$ H# @
( m+ \- y6 ^. ?4 y3 C' y3 z$ Q但是IEC60335-1里还有这样一句:) o/ e2 ` S g! R
6.1 Appliances shall be of one of the following classes with respect to protection against
4 i% |( o! b) k3 Eelectric shock: D3 k7 d: g% O; ?3 x8 t( O
class 0, class 0I, class I, class II, class III.
) \, F& c; h- A1 z# J6 w# f8 BIf an appliance consists of a part of class III construction and a detachable power supply
5 q: F% I3 h5 d4 D3 _( ypart, the complete appliance is classified as a class I appliance or class II appliance in , |: ~5 y, k1 e
accordance with the classification applicable to its detachable power supply part. # {4 F9 r" _9 i. e) n# D; f* 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。 T. l$ b& u6 {. L
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