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本帖最后由 ylgc123 于 2017-3-29 10:23 编辑
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* \' \. [8 Q" ped6.1 3.3.13
5 }6 F, r/ A' R$ x0 ?: w$ G6 Zclass III construction& ?% y5 ^" G) e- n" K
part of an appliance for which protection against electric shock relies upon safety extra-low
4 ?0 O" w- j4 r, dvoltage 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.
* p% ^3 [* c& U( lNOTE 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./ N) E( i% A, x" H# a$ q# G
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, `) H; f( e& T6.1 Add the following to the requirement as a new second paragraph:
1 ^" R. q& s% D7 Y+ d1 yIf 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。9 {9 O9 X8 @: K" o9 X( k2 U
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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' L& Y) i+ [* ]$ C既然有可能器具输入II类器具,那么为什么不打 回型 符号?$ ?2 t( q- `4 c- A2 h% Z
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