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标题: UL体系是否有类似IEC中低功耗电路不存在起燃风险的条款 [打印本页]
作者: ylgc123    时间: 2018-7-23 17:04
标题: UL体系是否有类似IEC中低功耗电路不存在起燃风险的条款
有听说，但是翻了982、1082、746C都没找到，心累~~~美标大神来拯救一下
2 d8 b0 b0 U$ A7 g% }+ v7 F/ I
作者: plmijb    时间: 2018-7-26 08:50
试试UL244
作者: qin.cq    时间: 2018-7-26 20:25
UL746C好像有
作者: mf0715    时间: 2018-8-7 08:23
746c 2015' O" w/ ?# q. [' P% G1 Y

. I9 V+ `" I3 w: r3.34 RISK OF FIRE – A risk of fire is considered to exist at any two points in a circuit where;
: w) b6 S& g; d7 B* q- Ja) The open circuit voltage is more than 42.4 V peak and the energy available to the circuit" d# R- J* S( R$ H+ L) c# ^2 _
under any condition of load including short circuit, results in a current of 8 A or more after 1
: D+ x9 U/ u, Eminute of operation, or) B+ z6 R# U, a! P; x' p2 ^
b) A power of more than 15 watts can be delivered into an external resistor connected between the two points.
作者: Frank1991    时间: 2018-8-7 09:02
UL 746c里面有的



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