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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 :
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" n# h; E F- ~8 N$ \/ t/ }; V5 _3 F! 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- ?5 G2 A6 m% O4 V K+ G
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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), a5 R/ D/ v9 ~. r8 c( E# I' ~
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.+ K' u/ v m0 `$ E
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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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