标题: 请教一个III类器具理解问题 [打印本页] 作者: Hu159357 时间: 2019-4-9 21:30 标题: 请教一个III类器具理解问题 请问这图片的理解是否正确？若不正确，该如何理解。6 u, z$ t& Z7 L: M 作者: zylyr2001 时间: 2019-4-10 09:22 本帖最后由 zylyr2001 于 2019-4-10 09:29 编辑 5 c' F; p4 a1 S2 }7 v. m ) [0 _1 d( F) `0 s你的这段话是出自哪个标准？怎么我看到的是这样的： * X1 L" H$ l/ j5 w8 v2 a' u3.3.12 2 |# i& u7 o- S; V. ^! k5 x3 Rclass III appliance 3 A0 R0 j. A0 k' C }8 `appliance in which protection against electric shock relies on supply at safety extra-low ; ~6 N+ L+ l+ x' f8 r9 b9 G
voltage and in which voltages higher than those of safety extra-low voltage are not # e; ?' v: ?& Q# E" U4 Ugenerated & `9 w. m+ h M# O. ?NOTE Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. " L5 x( n1 y5 y5 y( U# M- B3 V6 l& T
但是IEC60335-1里还有这样一句：' O0 p' j8 Q8 a5 a( J
6.1 Appliances shall be of one of the following classes with respect to protection against 4 V" q6 f9 G; d' d( d" d0 j
electric shock: 6 q3 F3 Z3 u1 s3 ]
class 0, class 0I, class I, class II, class III. 7 @ }* @- ?: g oIf an appliance consists of a part of class III construction and a detachable power supply 3 w; f) c# E1 R; b8 @$ |part, the complete appliance is classified as a class I appliance or class II appliance in ) w; u! W2 i( c: Q3 t Gaccordance with the classification applicable to its detachable power supply part. ) f5 x2 [3 t) ]- l3 d! z. A' x7 |( `6 ~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。 8 S) X+ J3 ^+ P* V) `作者: Hu159357 时间: 2019-4-10 12:45
zylyr2001 发表于 2019-4-10 09:228 j$ W0 n# W; j n, {4 G
你的这段话是出自哪个标准？怎么我看到的是这样的：- o8 {- O2 t& z: ^ _
3.3.12 7 d" _4 m- y) f- C( W: ^" `
class III appliance
