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LED电源做UL1310标准
引用第10楼shenlinlqcel于2011-03-21 14:55发表的 :. G8 ]8 A, R& ?
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; X% }1 z: t* c...............251-600(353.6-848.5)基本绝缘距离为6.4mm,加强绝缘还要乘以2 x2 o! u( ^- P. Y
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3 Q% v, o( x2 P$ H.......
9 N( d5 q/ m7 x6 I依照UL1310, 可以不考虑双重绝缘的, 除非产品有此标志(通常UL1310的产品都不标“回”标记)+ E# J. e! X. u5 d) h( g$ W1 X3 ]
24.12 Units, which are marked ²Double Insulated² or marked with the symbol for double insulation, shall be investigated to the Standard for Double Insulation Systems for Use in Electronic Equipment, UL 2097. G" Z" a R# ~+ v
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简单的说,不标“回”标记的产品内所有考虑的绝缘距离都依据表格24.1或24.2, 无需要额外乘2. |
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