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楼主: raintime

[IEC灯具] LED灯具overpower condition

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发表于 2013-6-26 09:21 | 显示全部楼层
广东安规检测
有限公司提供:
直接150%功率就可以了。
发表于 2013-6-26 09:33 | 显示全部楼层
Tc一般只标识在独立式驱动上面的
发表于 2013-6-26 09:54 | 显示全部楼层
内置式的驱动器外壳也标Tc
 楼主| 发表于 2013-6-26 13:41 | 显示全部楼层
tsunn 发表于 2013-6-26 09:54
! i. G- h6 G0 K内置式的驱动器外壳也标Tc

' x( t. B1 I: Y, B: Q% Q" j其实不是想问tc 的问题,你们说着说着就都到tc了 我是想知道这个测试你们一般都怎么操作的来着·~
 楼主| 发表于 2013-6-26 13:43 | 显示全部楼层
The LED module shall be switched on and the power monitored (at the input side) and! @* x3 b3 j/ V( @* I
increased until 150 % of the rated voltage, current or power is reached. The voltage or the7 s: u2 U; o: `) Z1 Q
current shall be increased until 150 % of the rated power is reached. The test shall be
" v% Y3 ]3 a+ r7 Fcontinued until the LED module is thermally stabilised. A stable condition is reached, if the( Q& @; I# d; N
temperature does not change by more than 5 K in 1 h. The temperature shall be measured in
0 c/ l% [* h0 P- O* ]  ythe tc point. The LED module shall withstand the overpower condition for at least 15 min, the+ L+ f: z% y$ ~! I6 \& y' L
time period of which can lie within the stabilisation period if the temperature change is ≤ 5K.4 L7 G! r- I- u+ \& ^

6 Q  Y3 y# b) @# |' T' dIf the module contains an automatic protective device or circuit which limits the power, it is3 U: V6 l9 R3 \% ~7 e8 Z
subjected to a 15 min operation at this limit. If the device or circuit effectively limits the power
! G' ?8 U% S1 j1 T( Wover this period, the module has passed the test, provided the compliance (4.1 and last. ?8 ~5 Y3 }' \7 d% r% T
paragraph of 13.2) is fulfilled.
: u8 k* T# _9 ]1 JAfter finalising the overpower mode, the module is operated under normal conditions until
  L/ l' t" C6 ~3 [6 g: [* Bthermally being stable.! i" \7 \( r. p" v
A module fails safe if no fire, smoke or flammable gas is produced and if the 15 min* I5 @) Y) c% M5 K; f
overpower condition has been withstood. To check whether molten material might present a
* D* o2 c% [5 i9 isafety hazard, a tissue paper, as specified in 4.187 of ISO 4046-4, spread below the module! r) p- m& p4 e0 ]
shall not ignite.
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