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本帖最后由 ylgc123 于 2017-3-29 10:23 编辑 & E1 j* ?1 ^2 h" ` e% L
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ed6.1 3.3.13
( I2 ]9 H; u) _1 Xclass III construction) T0 U7 Q! V* H% i7 ?( N/ F
part of an appliance for which protection against electric shock relies upon safety extra-low
7 C& b4 U, _7 P% j6 Avoltage and in which voltages higher than those of safety extra-low voltage are not
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NOTE 1 Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4. w4 t) P$ h+ J) v
NOTE 2 If the main part of the appliance operates at SELV and is delivered together with a detachable power supply unit then this main part of the appliance is considered to be of class III construction in a class I appliance or class II appliance as appropriate.* a ~/ n8 |% |9 o, v# p# w
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1 u7 a3 K: p+ O R* t1 \: C/ c6.1 Add the following to the requirement as a new second paragraph:
9 {+ ]$ ^1 v: t% K8 ^, z G- WIf an appliance consists of a part of class III construction and a detachable power supply part, the complete appliance is classified as a class I appliance or class II appliance in accordance with the classification applicable to its detachable power supply part/ C) d8 e) ?, u6 P2 F% ]! |
7 R! L8 Q+ I3 s) N. q" ?! c+ ~上面两段内容是是60335-1 ed6.1 CL3.3.1和ed6.2 CL6.1中的语句。虽然在ed6.2中删除了3.3.13的note2,但是6.1中增加了类似说明,在正式器具分类中将其归类为I类或II类器具。
# Z3 X# F5 x' R4 }标准上很明确的说明了如果器具有一个 a detachable power supply供电,那么器具整体式属于II类器具或I类器具,主体部分认为是III类结构。
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+ w N; |; i4 _4 @9 T既然有可能器具输入II类器具,那么为什么不打 回型 符号?# M9 h4 m: w! V6 F# P3 ]- m
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