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IEC 60598-1:2008中1.2.25定义的很清楚:
* `, B& _5 ^8 F3 Frated maximum ambient temperature(ta)额定最高环境温度。
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temperature assigned to a luminaire by the manufacturer to indicate the highest sustained
+ x' F( O3 k6 _3 r" [, Gtemperature in which the luminaire may be operated under normal conditions。
; l1 j1 u+ j" w( y& |7 V9 u由制造商规定的灯具在正常条件下可以工作的最高持续温度
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NOTE This does not preclude temporary operation at a temperature not exceeding (ta + 10) °C.
7 M; h( V s) c, o+ } E' R注:这并不排除在不超过(ta + 10) °C的温度下短暂工作。
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另外,在3.2.3中,有如下描述:; r) I8 ?, N& G& g# l8 Y
The rated maximum ambient temperature ta, if other than 25 °C (see Figure 1).
8 v# w4 o7 g& _0 x8 \, b若不是25 °C,则需标记出额定最高环境温度。换句话说,若没有标记出额定最高环境温度,则额定最高环境温度为25 °C。+ k, D: U" g( J1 S1 Z
" u2 N$ z8 s! [1 \; _- S2 q/ YNOTE Exceptions to this general requirement may be specified in particular parts of IEC 60598-2.
; x; ]- X% g1 s% h+ Z3 M8 y注:IEC 60598-2系列标准中某些特别的部分可能另有规定。 |
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