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本帖最后由 ylgc123 于 2017-3-29 10:23 编辑 - O2 h: U$ |: s8 K0 ]7 ^" w5 J. e
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ed6.1 3.3.13 0 c1 }7 O/ ~2 A' ~$ p+ h% N
class III construction3 _6 v6 E) I6 W: J: g; ~
part of an appliance for which protection against electric shock relies upon safety extra-low! k3 o: l: C' Y: F E6 H+ |
voltage and in which voltages higher than those of safety extra-low voltage are not3 O" D* p3 b- j- j {
generated
2 G/ r c' |+ p' f! p; {. I3 ~1 aNOTE 1 Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4.& L: _0 I7 s4 o7 {5 \- |2 U+ E
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.
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6.1 Add the following to the requirement as a new second paragraph:/ Y6 g- ^- z- M
If 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
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5 }5 f; `% x6 ^% s3 [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。, Q. F1 v0 b* I
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。) G. ~ L1 [& |1 O: o% B
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既然有可能器具输入II类器具，那么为什么不打 回型 符号？' v5 q: W" I% E% ?; S6 |9 D
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