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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 :5 a! _, `$ q7 j* | k
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! {7 l* D7 R4 }! E% c5 j...............251-600(353.6-848.5)基本绝缘距离为6.4mm,加强绝缘还要乘以2' Z, [* M0 H, D* J7 q2 ^! U, E3 t
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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)
% s, f$ l9 [( C/ b- m4 v, k" m1 ]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.
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7 O' m( ^6 M& Y0 O4 S$ Q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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