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向进华 发表于 2012-12-6 17:36 
4 L! c4 W/ V8 {+ F1 z: ?& |7 l" U' c* BCTL决议里说的只是针对大概的专例说明的。SELV说是可以基本绝缘,甚至于可以不用绝缘,但是灯具标准里还有对 ... . j* K% g' N. M
ccc中,负极可以认为不是载流体(Current-carrying parts)?# |& U+ a) w0 ~# l8 N: j4 x/ T
按照IEC 60598-1:2008
! X; A/ H: P& l2 @( \0 R" X1 q8.2.3 NOTE 2 PELV sources are not used at present for luminaires, by consequence a class III luminaire should not be provided with means for protective earthing.
# g& c: \, X9 v/ J8 i) Q; f4.11.5 Current-carrying parts shall not be in direct contact with the mounting surface or wood. 6 G% {% z H7 i
有提到mounting surface不能直接接触到载流部件,GB 7000.1:2007应该还没有更新?! |
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