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25.20 The insulated conductors of the supply cord for type Y attachment and type Z2 ]5 S; `& y: }! i4 @
attachment shall be additionally insulated from accessible metal parts by basic insulation
+ z# |0 r: s" Q) e- u; l$ [6 p: Vfor class 0 appliances, class 0I appliances and class I appliances, and by supplementary# }) Q- W/ i" `: T/ j. s" V* V: g! v
insulation for class II appliances. This insulation may be provided by the sheath of the
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Compliance is checked by inspection and by the relevant tests.
& E1 G5 l! y& y7 H: Q4 A+ b各位师兄,我对这点一直很疑惑,大家能发表下自己的理解吗?我的理解是如下:
/ E* T5 k7 ]: H4 @! [随便举个例子(烤箱),电源线进去不是有一段剥掉外表皮的一截线吗?那个就应该是insulated conductors of the supply cord,不知道我理解的对吗?如果是这样的话,那剥掉外皮的那段就不能碰到接地金属外壳了(class I), 而需要再加一层基本绝缘才能符合上面所说?请问大家我理解的对吗?
% S1 o) R! i7 `$ N3 k如果是这样的话,我又有个疑惑:既然剥掉外皮的电源线不能接触接地的外壳,那我们一般所指的internal wire怎么就可以直接接触带接地的外壳呢?
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