|
|
看标准原文.
( v* W8 K$ q6 B12.3.1 Test6 y6 D1 H! h0 p W9 ]/ W
a) The luminaire shall be mounted in a thermal enclosure with means for controlling the* s) Y- F2 {6 a$ k
ambient temperature within the enclosure.4 [; i( I; i! t/ |1 X
The luminaire shall be positioned on a similar supporting surface (and in the same* {( w2 s# P% ]' O* K
operating position) as for the normal operation thermal test (see 12.4.1).
* y! A9 ]2 D$ F- wb) The ambient temperature within the enclosure shall be maintained within ±2 °C of (ta + 10) °C, J$ T0 A8 p& Y
during the test; ta is 25 °C unless otherwise marked on the luminaire.# k$ Q( I- ]7 S+ j+ ~
The ambient temperature within the enclosure shall be measured in accordance with
1 Z4 `/ B4 w) W# l# s( JAnnex K. Ballasts for operation separate from the luminaire shall be mounted in free air, not( A6 c% u$ P. j6 S) C9 D8 j* w
necessarily in the thermal enclosure, and shall be operated in an ambient temperature
. K: f6 v$ [# ]$ d2 N8 j W) \of 25 °C ± 5 °C.) B7 m' ?0 _2 p) Q7 t
写得很清楚,是在恒温箱里做的,至于要用木箱还是别的什么箱则不做要求,只要求温度恒定. 其实这种常规测试, 找本标准看看比问人快. 至于空气对流的问题, 在任何测试中, 稳定的空气条件都是基本要求.除非样品本身问题无法实现.例如风扇,气泵什么的. |
|