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标题: 灯具ERP测试,怎样判断是否稳定 [打印本页]

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作者: xiaoning    时间: 2018-7-27 16:55
标题: 灯具ERP测试,怎样判断是否稳定
在积分球内测试,怎么判断灯具已经稳定了?光通量不超过多少?有标准规定吗?谢谢

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作者: zhongwen_lee    时间: 2018-7-27 18:02
看功率，功率没有大的变动，则判定处于稳态。

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作者: xiaoning    时间: 2018-7-31 10:53

zhongwen_lee 发表于 2018-7-27 18:02
看功率，功率没有大的变动，则判定处于稳态。

您说的是标准要求吗?    巴西389标准上有要求功率和光通量的要求,但是1194和244上好像查不到.

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作者: Leontios    时间: 2018-8-1 10:40
坐的讲解。

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作者: 517121    时间: 2018-8-2 08:38
IEC62612里面有说明。
The LED lamp shall be operated for at
; M8 M) Y0 v5 i0 O' ?least 30 min and it is considered stable and suitable for test purpose, if the relative
/ Q5 k' W0 I; T% Y; Fdifference of maximum and minimum readings of light output and electrical power
  @; c# `" R8 K5 s' c4 X" v  Hobserved over the last 15 minutes is less than 0,5 % of the minimum reading. If the LED
0 `. B. a# \4 g8 s( slamp is pre-burned, it does not need to be operated for 30 min, and it is considered stable
if the readings of the last 15 min meet above requirement.

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作者: xiaoning    时间: 2018-8-15 22:51

517121 发表于 2018-8-2 08:38
9 V0 _( O4 w" C; `; S4 lIEC62612里面有说明。
The LED lamp shall be operated for at
least 30 min and it is considered stabl ...

thanks a lot

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