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各位大侠,
- i9 s# _, O n2 r7 p" g) B- k/ [ 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, m- v8 l8 f2 w/ `( @0 G& g5 b! h
以下是原文EN60598-1:20085 o2 u+ L# h+ X9 n
12.3.1 Test
: M! G* c/ l: e7 Q8 P, Wc) The luminaire shall be tested in the enclosure for a total duration of 168 h consisting of
: f* Q0 |$ q/ x5 @( Bseven successive cycles of 24 h. Supply voltage as specified in item d) below shall be
' p; u- W8 r: C- Papplied to the luminaire for the first 21 h and disconnected for the remaining 3 h of each
! y: h" s6 ]9 b" `, f8 Ycycle. The initial heating period of the luminaire is part of the first test cycle.
8 D) d; T/ [& \: e J The circuit condition shall be as in normal operation for the first six cycles, and as in ! O. L" ]- h/ L9 e L7 |: V
abnormal operation (see Annex C) for the seventh cycle. For luminaires containing an
5 g3 w- V5 ^( W/ I+ m* a; Selectrical motor (e.g. a fan) the abnormal condition which most adversely affects the result 0 m" b) w9 _8 c8 Z- Y$ s* H
of the test shall be selected.
5 R# D" R# ?& K, t r For luminaires for which there is no abnormal condition test according to 12.5.1, the total
* C# e3 ?7 J, N/ g' gtest duration shall be 240 h (i.e. 10 x 24 cycles at normal operation). For filament
t; G" j( Y3 A5 L! Sluminaires, the total test duration of 240 h shall apply in all cases.
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12.5.1 Test
6 n8 V: J0 i/ j2 L& H" |6 Y9 RTemperatures of parts listed in Table 12.3 shall be measured in accordance with the following
0 s# ]4 L/ w" ]7 Aconditions.
0 q! z% B. C% l2 f& ^* g: u& N" n5 Fa) The test shall be made if, during service, the luminaire could be in an abnormal condition as / j- Q0 k `$ @/ S9 ^% X
in cases 1), 2), 3) or 4) below, and if this condition would cause any part to be at a higher
3 d4 ~1 l4 d# U+ v& X9 L) ctemperature than during normal operation (in which case a preliminary trial may be 9 ?- b% D. |, i0 |5 S" e5 ]* J
needed).
5 x/ {1 u# {6 u2 _6 n" F. D7 v If more than one abnormal condition is possible, that condition which most adversely affects
5 t9 [4 h2 I9 L. G2 G! ~9 Y9 g8 u) hthe results of the tests shall be selected. & B, l e3 l$ v$ {
The test is not applicable to fixed non-adjustable filament lamp luminaires, except in case
+ s: G ^9 v' h; D3 Z. [% ] S i3) below.
7 J' s8 `% {$ t0 Z% R [$ Q( p1) A possibly unsafe operating position, arising other than from misuse, e.g. if by accident
1 C* o( g9 K% z A& V+ S& Ban adjustable luminaire is bent in the direction of the mounting surface by using a force
, o5 n7 \ _ w6 j& ]+ t eof 30 N minimum during a short period of time and on the most unfavourable point on % `; `/ N$ p* S& N
the luminaire. . {/ I# R. M( a' W5 G1 D
2) A possibly unsafe circuit condition arising other than from defective manufacture or
& P" S, ], ^) v4 F2 P( a/ Wmisuse; for example a circuit condition occurring at the end of the service period of a
' V; ^, R! e& E* r# Q8 Ilamp or of a starter (see Annex C). 3 F; }' {- K) p: |8 P. H
3) A possibly unsafe operation condition arising from the use of a GLS lamp in a filament
1 ^. O* E: d' b/ h4 C6 x6 ulamp luminaire intended for a special lamp; e.g. if, temporarily, a special lamp is u. ?0 s( M- \
replaced by a GLS lamp of the same wattage. . ]1 W, I: d4 h
4) A possible unsafe circuit condition arising from a short circuit in the secondary circuit 0 @0 W# h9 W- V
(including the transformer itself) of a luminaire with transformer fitted for lamp voltage % m7 `' J5 j0 [ u2 H
supply.
' x; W! \' P' O7 X5 c Test 2) is applicable only to tubular fluorescent and other discharge lamp luminaires.
1 j! z% p, H4 ~ M3 y0 ^ Test 4) shall be made with a short-circuit in the lampholder. During test 4), the temperature , s" s) Z5 E6 L; M
rise due to heat emanating from the lamp to the mounting surface shall be checked by the
3 F: a! d$ a6 U7 ?test according to item 1), while the temperature rise due to heat emanating from the
2 u# G, ]: k0 T3 ~ _# z. otransformer shall be measured with the contacts of the lampholder being short-circuited. v2 {1 |% g0 y G* A; S
Luminaires containing an electrical motor are operated with the rotor locked against rotation. + Q- j. T+ ~( f) \8 _ a2 H
NOTE In the case of the presence of one or more motors, the test should be made in accordance with the ! J* D4 B8 V8 S
most critical condition (see Annex C).
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, l5 ^' A1 A" e L谢谢!/ x: W" [( I2 q) T0 u6 _3 V" o* ?
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