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本帖最后由 浪漫罗丹 于 2013-10-8 15:54 编辑 7 W) L7 |4 ], o) x& j5 b# D
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22.35 For constructions other than those of class III, handles, levers and knobs that are held or actuated in normal use shall not become live in the event of a failure of basic insulation. If these handles, levers and knobs are of metal and if their shafts or fixings are likely to become live in the event of a failure of basic insulation, they shall be adequately covered by insulating material or their accessible parts shall be separated from their shafts or fixings by supplementary insulation.' y* w+ P! J# {, [8 s2 ~
0 J& q- P! D3 ?8 q根据以上要求,除III类产品外,如果其handles, levers and knobs是金属的,则该handles, levers and knobs 必须与live part之间满足加强绝缘或者双重绝缘(如果它与live part之间只满足basic,则其accessible的地方必须要covered by insulating material),即使这个金属的handles, levers and knobs 接地了。对于这点CTL还专门出个决议,见附件。 ]; Q- R4 ?- n. n" N2 d j$ A
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楼主一直没想明白的就是,接地了的金属做handles, levers and knobs为什么不可以????关键接地金属是可以accessible的,搞不懂, 希望大家一起讨论) V" ^ Z _% A- {1 i
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