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本帖最后由 ylgc123 于 2017-3-29 10:23 编辑 5 S. ^( {4 d6 q( A- V; d8 R
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ed6.1 3.3.13 / R9 F: L* Q( l4 z9 q
class III construction0 n1 ^- h2 p" H' F6 U1 e) e+ [- ^" H7 _
part of an appliance for which protection against electric shock relies upon safety extra-low
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, m, P& @! e/ H% }( d$ l* oNOTE 1 Basic insulation may be required in addition to supply at SELV. Refer to 8.1.4.8 w0 ~0 ~1 T( Y% x" s1 Q
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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) k) Z4 M8 {7 C9 }0 F( m' w6.1 Add the following to the requirement as a new second paragraph:
2 g5 W. a+ v4 V% e: R0 M8 {# G$ G, VIf 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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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。- r4 U) F+ {4 ^! C$ h
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。, h5 `( D) ?1 V8 }: m
8 w& N- L' Y. w" y既然有可能器具输入II类器具,那么为什么不打 回型 符号?) g9 L9 u& z7 t2 W2 K v
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