标题: LED driver EN61347-2-13 [打印本页] 作者: ll123456 时间: 2012-1-21 01:00 标题: LED driver EN61347-2-13 LED driver 要符合en61347-2-13, 是否一定要做成有隔离变压器的, 没有隔离是否可以?
有什么要求?作者: aoxtck 时间: 2012-1-21 01:01
要隔离的.
要求:
7 Marking
8 Protection against accidental contact with live parts
9 Terminals
10 Provisions for protective earthing
11 Moisture resistance and insulation
12 Electric strength
13 Thermal endurance test for windings of ballasts
14 Fault conditions
15 Transformer heating
16 Abnormal conditions
17 Construction
18 Creepage distances and clearances
19 Screws, current-carrying parts and connections
20 Resistance to heat, fire and tracking
21 Resistance to corrosion作者: ll123456 时间: 2012-1-21 01:01
为什麽? 我现在看到有的led灯里面的电源板是没有隔离的, 而且变压器都没有. 比如, 像白炽灯一样的led灯, 里面的电源板.