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本帖最后由 shuaijiachen 于 2016-8-26 22:17 编辑 # F( @7 b" [" M w8 z' [4 |" d
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请教各位大师关于UL859:2012中section 44 的温升测试方法问题。我看标准很有歧义,公司做法跟我的理解好像不一致!
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44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
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attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during, Q1 b0 `9 {! C2 H. I6 B
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
' L1 V& N$ n* F1 ]: Uconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be9 g3 Q4 A/ N9 L" J$ e; f, F
measured throughout the test.9 T2 k. c) O3 W2 ?- m
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3 p- G" W" M; h j; G/ c+ H44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the
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the heater.
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疑问如下:
1 \0 o" f* z3 [. r2 N. J1,直发器和卷发器的温升测试方法是一样的吗?具体步骤是怎么样的?0 o# B* Y) j: _+ `1 R8 R7 d
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2,我看标准理解是:直发器和卷发器测试方法一致,发热板上夹湿布,开始上电,直到蒸发完成且发热板表面温度达到204度时,断电;停止2分钟,期间换上第二块湿布,再次上电,直至温度达到204度,完成测试(总共测试2cycles)。这种理解正确吗?难道只做2cycles/换2次湿布就可以完成温升测试了?好像这样温度都没有达到稳定状态。
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. P" r% [. d ~* z3,标准说达到204度后断电,换湿布,那么如果我们的产品发热板表面温度没有达到204度,那什么做测试?! K5 X e& I' l. q! }5 M1 T" \
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4,为什么44.1.19中是测试2cycles,而44.1.21中却说是要一直工作到温度稳定状态?这两个条款是针对不同产品吗?指哪些产品呢?
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