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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 :- p4 U. Y" d7 r
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. g8 O+ F/ ~0 J n& D...............251-600(353.6-848.5)基本绝缘距离为6.4mm,加强绝缘还要乘以2- E, P9 @; V: l" Y. y; E' q
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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)
: [: d1 c5 }# o, P$ D4 o; T, A24.12 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.* Y$ x3 z6 \2 b9 N( |
2 v! i( a' I& J8 L0 j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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