Perse 发表于 2016-10-24 23:56

谁能简单说说LED驱动UL里面的Type HL

如题，不是很懂，求指教

Perse 发表于 2016-10-25 22:57

本帖最后由 Perse 于 2016-10-25 23:16 编辑

没人回答，只能自己来Type HL driver: LED Drivers intended for Use in Hazardous(Classified) Locations

Type HL 驱动： 用于危险(分级)位置的LED驱动

Perse 发表于 2016-10-25 23:02

UL established a new "Type HL" designation for LED drivers, pattern after the requirements for Type HL ballasts.

These requirements for LED drivers were issued as a Certification Requirement Decision (CRD) to the standard UL 8750

Perse 发表于 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.
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

Perse 发表于 2016-10-25 23:28

Type HL drivers will be Listed or Recognized, as appropriate, in their regular ordinary location product category.
Type 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

不及格 发表于 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。
其实这个概念来源于935，做过Ballast的就很清楚。

andyshu 发表于 2016-12-8 11:16

学习了，谢谢
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