标题: 家电产品的外壳厚度作为加强绝缘一定要至少2.0mm? [打印本页] 作者: yawei3138 时间: 2012-9-11 18:40 标题: 家电产品的外壳厚度作为加强绝缘一定要至少2.0mm? 根据条款的29.3, 附加和加强都应该有足够的厚度或者层数, 但是对29.3.3的这一条有点疑问, 这个条件什么时候适用呢?6 G' O1 F& @$ A$ \6 U8 F8 J 作者: liscsupor 时间: 2012-9-11 21:13 本帖最后由 liscsupor 于 2012-9-11 21:17 编辑 " ]' [7 S W8 C* }$ \# e/ G' I- b& k
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29.3.1、29.3.2条款不满足时,29.3.3适用。若从设计角度考虑29.3.1的条件容易实现,如果材料厚度不满足29.3.1条款时应注意21.2条款的规定。作者: plmijb 时间: 2012-9-11 22:09
29.3 Supplementary insulation and reinforced insulation shall have adequate thickness, ) }+ F2 S$ z& U b3 e9 F9 J W" o: cor have a sufficient number of layers, to withstand the electrical stresses that can be expected 2 i( B0 S0 c/ h! A( t& R# ^during the use of the appliance. 3 F, \$ d; `, T! TCompliance is checked2 {1 n# \1 u1 N$ ]( \6 l
– by measurement, in accordance with 29.3.1, or9 i/ H1 s& Q* J1 S
– by an electric strength test in accordance with 29.3.2, if the insulation consists of more) r2 W7 J% h9 z) c' f" j1 r# T
than one separate layer, other than natural mica or similar flaky material, or8 z8 m& ~2 ^: I
– by an assessment of the thermal quality of the material combined with an electric strength2 m8 |1 }. \: u, T' v/ J' T _8 t
test, in accordance with 29.3.3 and for accessible parts of reinforced insulation2 k. l! V, ?& z
consisting of a single layer, by measurement in accordance with 29.3.4, or作者: qin.cq 时间: 2012-9-12 12:40
不能少于2MM作者: craigyu 时间: 2012-9-13 12:42
没有一定要求, 但是要过得了机械强度, 厚度太薄肯定不行作者: liscsupor 时间: 2012-9-13 17:19
craigyu 发表于 2012-9-13 12:42 + L" K- M. H3 X( P( r
没有一定要求, 但是要过得了机械强度, 厚度太薄肯定不行