标题: LED灯具寿命测试 [打印本页] 作者: 520168 时间: 2013-11-22 10:03 标题: LED灯具寿命测试 各位大侠, * S/ t- W7 {& r/ X 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, ' a. I' A/ i8 j$ ?# g B8 p# ]以下是原文EN60598-1:2008 ; W' C& o+ K% j' r& ]& i12.3.1 Test / ~# z: e2 T" b+ l5 t# E
c) The luminaire shall be tested in the enclosure for a total duration of 168 h consisting of ) Y, `* K4 `! n- I) h+ T, T, k+ {9 ^
seven successive cycles of 24 h. Supply voltage as specified in item d) below shall be ! p, ?' S. J/ C! F7 K/ y0 Uapplied to the luminaire for the first 21 h and disconnected for the remaining 3 h of each 8 Y5 z2 I* ~1 q& hcycle. The initial heating period of the luminaire is part of the first test cycle. & w% i5 Y, s4 f( |4 b The circuit condition shall be as in normal operation for the first six cycles, and as in ; n7 u; w7 T* n0 |abnormal operation (see Annex C) for the seventh cycle. For luminaires containing an : A, c( P* q4 ^( I
electrical motor (e.g. a fan) the abnormal condition which most adversely affects the result . [) U9 d" v/ e. U& a3 v0 U
of the test shall be selected. $ `/ ?- {2 [8 x. O3 p; O6 a8 @
For luminaires for which there is no abnormal condition test according to 12.5.1, the total 5 U3 p# ]) W N, A: Jtest duration shall be 240 h (i.e. 10 x 24 cycles at normal operation). For filament 7 f' q' ^/ [9 Z5 S6 t+ s$ ~% W8 @
luminaires, the total test duration of 240 h shall apply in all cases. + u! K1 Z" t6 _* o ?" R* ~$ h
. P0 Y# y/ K' v$ ?9 t' }% D8 u4 ^0 M12.5.1 Test * R: u6 B$ g# s f* ^
Temperatures of parts listed in Table 12.3 shall be measured in accordance with the following " H8 Y' l6 ?, o7 V" j+ g4 y9 ]conditions. 0 @; c# W9 [* h' [1 y/ |& t) C3 `
a) The test shall be made if, during service, the luminaire could be in an abnormal condition as % v& {, A; r8 @/ T/ L3 }( U* Tin cases 1), 2), 3) or 4) below, and if this condition would cause any part to be at a higher - @& `2 V% f3 X$ k! {temperature than during normal operation (in which case a preliminary trial may be ; O3 \( q) L% W3 \
needed). ( A: I4 p/ |3 f! c( e# j6 @ If more than one abnormal condition is possible, that condition which most adversely affects 1 C: J3 a/ O0 n8 h1 T1 U4 Athe results of the tests shall be selected. , x: j# r, U+ o1 Y
The test is not applicable to fixed non-adjustable filament lamp luminaires, except in case ) j# i5 w, y6 G3 N4 V0 q3) below. ], t) Q. Q/ }* n. r# ?" {" N1) A possibly unsafe operating position, arising other than from misuse, e.g. if by accident % D6 L; r# P, s1 l; r- v/ n3 U
an adjustable luminaire is bent in the direction of the mounting surface by using a force + o* `$ H/ @1 T* j* W1 sof 30 N minimum during a short period of time and on the most unfavourable point on * s/ a: _: M) D7 U4 R4 B( n9 ]
the luminaire. 0 @) ?. z8 c, z* k7 h2) A possibly unsafe circuit condition arising other than from defective manufacture or }: f, w7 y$ A1 P* f- E# r* v
misuse; for example a circuit condition occurring at the end of the service period of a 9 u: v; t5 V2 k9 U2 w2 `1 Flamp or of a starter (see Annex C). - a8 F, Q6 ~% i
3) A possibly unsafe operation condition arising from the use of a GLS lamp in a filament ; N! J7 J- w. g; ^' G( G2 M
lamp luminaire intended for a special lamp; e.g. if, temporarily, a special lamp is H- _8 q* I' K; Jreplaced by a GLS lamp of the same wattage. 7 l7 L G( u5 Z4) A possible unsafe circuit condition arising from a short circuit in the secondary circuit , o( S1 ^. U* J; Y. J6 U
(including the transformer itself) of a luminaire with transformer fitted for lamp voltage & b7 A, y7 \* n. ^
supply. : }& j7 V) P3 p: g& k1 X, e Test 2) is applicable only to tubular fluorescent and other discharge lamp luminaires. 4 v6 e* ^1 w7 J8 }" P Test 4) shall be made with a short-circuit in the lampholder. During test 4), the temperature " x# K, }, G( a: R! Srise due to heat emanating from the lamp to the mounting surface shall be checked by the " k: N1 n# d: [3 c: s/ A1 [# m P0 X
test according to item 1), while the temperature rise due to heat emanating from the ^1 m. P' M0 r0 O7 Etransformer shall be measured with the contacts of the lampholder being short-circuited. , N+ x. C! K6 H: i' L- O Luminaires containing an electrical motor are operated with the rotor locked against rotation. . A/ S/ J$ r @* W, ?# _& {- N
NOTE In the case of the presence of one or more motors, the test should be made in accordance with the 0 S/ g8 x/ A" K: jmost critical condition (see Annex C). % J. p1 t g- \( ?% K" O* q- Z $ k, k; |7 W9 y2 E1 K6 ]) q3 r谢谢!0 \/ `# U8 ~9 A! O0 u- P 作者: Nezof 时间: 2013-11-22 10:11
这不是寿命测试吧,是耐久性测试 2 y$ b) o& t4 x& w8 h# X$ s( ^. Z) K. d, d# O你的LED灯具要看 CTL决议DSH0745 按1.1倍电压,做10天,21h on / 3h off作者: 520168 时间: 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!作者: jsq123 时间: 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。作者: jsspace 时间: 2013-11-22 11:39
520168 发表于 2013-11-22 11:10 6 G% ~- [4 b: P/ R
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!