标题: 谁能简单说说LED驱动UL里面的Type HL [打印本页] 作者: Perse 时间: 2016-10-24 23:56 标题: 谁能简单说说LED驱动UL里面的Type HL 如题，不是很懂，求指教+ A4 W9 i6 g. Z K1 C# T$ l
8 P0 C3 A/ m' ^* K# g% `7 Y 作者: Perse 时间: 2016-10-25 22:57 本帖最后由 Perse 于 2016-10-25 23:16 编辑 ) b2 ~6 H2 @: X* Y: A! _6 Y. ]7 ^6 V8 h/ |5 y
没人回答，只能自己来Type HL driver: LED Drivers intended for Use in Hazardous(Classified) Locations 4 _ ]0 s! o6 I, ]2 G( y( R3 u3 c( N3 k5 D0 }, v" l
Type HL 驱动： 用于危险(分级)位置的LED驱动1 k1 V* C6 p o2 x' P! v 作者: Perse 时间: 2016-10-25 23:02
UL established a new "Type HL" designation for LED drivers, pattern after the requirements for Type HL ballasts. 0 U4 K, S) n. p; t* A+ z1 r0 @' b " w2 ~2 S% p2 j0 R" EThese requirements for LED drivers were issued as a Certification Requirement Decision (CRD) to the standard UL 8750作者: Perse 时间: 2016-10-25 23:14
LED Drivers with the "Type HL" marking can be used in end product luminaires intended to be installed in hazardous (classified) locations areas, with out further evaluation.) _1 f7 l# U' t7 _+ @. e: N
有 "Type HL" 标记的LED驱动可以不用进行更多评估， 直接用于安装在危险(分级)位置区域的l终端灯具作者: Perse 时间: 2016-10-25 23:28
Type HL drivers will be Listed or Recognized, as appropriate, in their regular ordinary location product category. ! I) j. m# M; mType HL 驱动在他们常规位置的产品类别里，可以是适用的列名或认可作者: 不及格 时间: 2016-10-26 19:54
驱动器的Type HL是在UL8750里面定义的，简单来讲就是可以安装在Class I Division 2 类用于危险场合（Hazardous Location）的灯具里面，这种驱动器除完全符合8750的常规条款以外，内部必须灌胶。 ( K3 e. ?; {6 q5 @) h( f3 {) [" h- C其实这个概念来源于935，做过Ballast的就很清楚。作者: andyshu 时间: 2016-12-8 11:16
学习了，谢谢