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本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑 " V% k6 D% K/ B
; f4 b2 H3 @* A5 U4 o# w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！$ c9 f6 x3 V7 b9 h8 T) \3 E3 I
标准原文：
% ~( V" ^; u ?3 X- f44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened1 \1 M+ A5 n8 K, n- _8 G
cloth and then operated until the moisture has been evaporated and the heating surface of the unit has
* R1 G5 B" P( _, Lattained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during2 o6 S5 ^" b$ f; |( i
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
% V; n- m3 N) m8 Q, C3 _" g" \9 Gconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be
5 i2 q9 q2 x j# }measured throughout the test.
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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
3 \3 e9 A- n; g& U/ H8 y3 Xtest is to consist of operation of the appliance until temperatures are constant, with the clips in place on% ?. R; N V! m- Z) G5 Z
the heater.4 ^" Y0 B5 ]. \2 [3 w+ F7 Y
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疑问如下：$ a- A" x, a) _5 a2 w/ n5 U
1，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？% ]* i$ k5 A& U# f
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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。2 m+ o1 D) p9 R% K9 F0 [: B0 M- i
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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？
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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状态？这两个条款是针对不同产品吗？指哪些产品呢？% H9 v. l7 W( }6 I
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发表于 2016-8-26 22:13
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