|
本帖最后由 浪漫罗丹 于 2013-10-8 15:54 编辑
' x4 O$ Y0 e/ g# C: D, ]; {7 V) o. v) s9 C
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.7 }3 s8 w" ]: Y' A* l
# ]* }% }5 A( q7 r
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。
; z- }/ ^% y+ [% z& \2 p0 e/ \- y, y: P5 J
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& k6 t* p/ n8 y) I& e0 C
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册安规
x
|