LED灯具寿命测试

520168 · 发表于 2013-11-22 10:03

各位大侠，
   LED灯具寿命测试要做多少天？我看SGS发的报告是做10天，难道LED灯具驱动电源不用考量异常条件寿命。我看标准理解是有异常测试的要做7天，没有异常测试的要做10天，
以下是原文EN60598-1:2008
12.3.1  Test
c)  The  luminaire  shall  be  tested  in  the  enclosure  for  a  total  duration  of  168  h  consisting  of
seven  successive  cycles  of  24  h.  Supply  voltage  as  specified  in  item  d)  below  shall  be
applied  to  the  luminaire  for  the  first  21  h  and  disconnected  for  the  remaining  3 h  of  each
cycle. The initial heating period of the luminaire is part of the first test cycle.
  The  circuit  condition  shall  be  as  in  normal  operation  for  the  first  six  cycles,  and  as  in
abnormal  operation  (see  Annex  C)  for  the  seventh  cycle.  For  luminaires  containing  an
electrical motor (e.g. a fan) the abnormal condition which most adversely affects the result
of the test shall be selected.
  For  luminaires  for  which  there  is  no  abnormal  condition  test  according  to  12.5.1,  the  total
test  duration  shall  be  240  h  (i.e.  10  x  24  cycles  at  normal  operation).  For  filament
luminaires, the total test duration of 240 h shall apply in all cases.

12.5.1  Test
Temperatures of parts listed in Table 12.3 shall be measured in accordance with the following
conditions.
a)  The test shall be made if, during service, the luminaire could be in an abnormal condition as
in cases 1), 2), 3) or 4) below, and if this condition would cause any part to be at a higher
temperature  than  during  normal  operation  (in  which  case  a  preliminary  trial  may  be
needed).
  If more than one abnormal condition is possible, that condition which most adversely affects
the results of the tests shall be selected.
  The test is not applicable to fixed non-adjustable filament lamp luminaires, except in case
3) below.
1)  A possibly unsafe operating position, arising other than from misuse, e.g. if by accident
an adjustable luminaire is bent in the direction of the mounting surface by using a force
of  30  N  minimum  during  a short period of time and on the most unfavourable point on
the luminaire.
2)  A  possibly  unsafe  circuit  condition  arising  other  than  from  defective  manufacture  or
misuse;  for  example  a  circuit  condition  occurring  at  the  end  of  the  service  period  of  a
lamp or of a starter (see Annex C).
3)  A possibly unsafe operation condition arising from the use of a GLS lamp in a filament
lamp  luminaire  intended  for  a  special  lamp;  e.g.  if,  temporarily,  a  special  lamp  is
replaced by a GLS lamp of the same wattage.
4)  A  possible  unsafe  circuit  condition  arising  from  a  short  circuit  in  the  secondary  circuit
(including  the  transformer  itself)  of  a  luminaire  with  transformer  fitted  for  lamp  voltage
supply.
  Test 2) is applicable only to tubular fluorescent and other discharge lamp luminaires.
  Test 4) shall be made with a short-circuit in the lampholder. During test 4), the temperature
rise due to heat emanating from the lamp to the mounting surface shall be checked by the
test  according  to  item  1),  while  the  temperature  rise  due  to  heat  emanating  from  the
transformer shall be measured with the contacts of the lampholder being short-circuited.
  Luminaires containing an electrical motor are operated with the rotor locked against rotation.
  NOTE  In  the  case  of  the  presence  of  one  or  more  motors,  the  test  should  be  made  in  accordance  with  the
most critical condition (see Annex C).

谢谢！

Nezof · 发表于 2013-11-22 10:11

这不是寿命测试吧，是耐久性测试
你的LED灯具要看 CTL决议DSH0745 按1.1倍电压，做10天，21h on / 3h off

520168 · 发表于 2013-11-22 11:10

做10天耐久也要21h on / 3h off？我一直以为做168小时才会有21h on / 3h off呢！

jsq123 · 发表于 2013-11-22 11:16

LED灯具的寿命测试只能通电测试，控制装置倒有办法测算寿命，依据美军标Mil-HDBK-217F。

jsspace · 发表于 2013-11-22 11:39

520168 发表于 2013-11-22 11:10 ( j5 t$ Z, J7 Q" j. P" a+ t
做10天耐久也要21h on / 3h off？我一直以为做168小时才会有21h on / 3h off呢！

请参考NEZOF的说法，完全正确

jsq123 · 发表于 2013-11-22 11:42

jsspace 发表于 2013-11-22 11:39 s1 N. C2 n( @4 y6 |: P" G: t
请参考NEZOF的说法，完全正确

是指耐久性试验吧？

jjlamshushushu · 发表于 2013-11-22 11:45

jsq123 发表于 2013-11-22 11:16 6 b" R; C( H# p7 g6 l) G
LED灯具的寿命测试只能通电测试，控制装置倒有办法测算寿命，依据美军标Mil-HDBK-217F。

美军标如何推算控制装置寿命？晒出来分享一下嘛。。。

520168 · 发表于 2013-11-22 11:51

是呀！我也想看看。

jsq123 · 发表于 2013-11-22 12:04

本帖最后由 jsq123 于 2013-11-22 12:05 编辑

先要熟悉标准，然后分别取每个管子的参数值，根据公式计算得出，举了个不完整的报告例子，供参考。

lds08080808 · 发表于 2013-11-22 12:20

顶起，学习

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[IEC灯具] LED灯具寿命测试

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