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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 :7 R: Y6 j+ I# N
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# @0 Z9 T# U& l; |& ?...............251-600(353.6-848.5)基本绝缘距离为6.4mm,加强绝缘还要乘以2: Y+ ~1 S( k4 b% Y
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: ~6 N- U% H4 ^" ~5 {( U. j.......
1 U$ e1 v, t& T- K8 b/ u% O; j7 g+ J+ V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)
6 P+ F$ h- O( [1 B0 m24.12 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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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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