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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 :- c3 b% y8 N( t
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- {; X O5 B, J8 e0 e...............251-600(353.6-848.5)基本绝缘距离为6.4mm,加强绝缘还要乘以2
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. `0 [- R5 {+ r+ c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)- j/ m4 N# s: z% _
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 2097.3 _4 H; y1 [) q- x/ @- k# n0 |
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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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