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你可以看12.6合格性判定方法那几条,要求比12.5要多
# c5 j7 g% a. ~5 Lb) The values of the ambient temperature and the temperature measured at 1,1 times (the
) q& h/ R. z2 ?- x7 ^rated voltage or the maximum of the rated voltage range) are plotted on a graph (Figure 9)
' d3 i" Y8 J3 }" [ h& Jand the best straight line obtained using linear regression is drawn through these points.
2 W$ x8 P/ m6 rThe extrapolation of this straight line shall not reach a point representing a mounting
3 `7 q- k9 j2 P. }# Q7 D; `surface temperature of 180 °C at a ballast or transformer winding temperature of less than
' v* m+ D$ x1 j. G! y2 T; D- m2 w350 °C.
$ b. Z! a, o9 s( c- p它要求要绘一个曲线图的,如果一个灯,做12.5时,稳定后安装面的温度没有超过130度,但它在很短的时间内就升高了,这时用曲线图的话,可能就不合格了 |
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