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本帖最后由 shuaijiachen 于 2016-8-26 22:17 编辑 $ s# z- [$ _" E0 r
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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！
7 T; M8 I" e8 X3 I标准原文：+ k: J: K% A9 N6 f9 F3 x
44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened9 S- [5 n. Y$ h l0 ?
cloth and then operated until the moisture has been evaporated and the heating surface of the unit has; \/ o9 q2 ~7 z7 W! L1 d
attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during
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conducted a second time. The complete cycle is then to be repeated again. Temperatures are to be
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44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the
5 I* s9 j4 F$ [% W5 Ttest is to consist of operation of the appliance until temperatures are constant, with the clips in place on$ l( j7 l! @ y0 n" ^
the heater.
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( i7 Y8 Y6 \/ e" B: n% p2 v疑问如下：
) X$ O% N4 v( L) _( N& U, @( I6 M1，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？7 i1 I) `1 g( \- C+ X V
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6 R8 F% B3 k5 d# t3 b% z- B j2，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。: \+ k1 K o) t, X {$ l6 C Z, G
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3，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？; `1 Q6 x1 B8 h
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, |* J. E1 X9 e; \0 H4，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？+ d* e- Y* ^5 b- @$ \2 N- ?0 x
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发表于 2016-8-26 22:09
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