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本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑 ; }# n9 W. C* l; j; K4 P$ k9 x
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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！1 b' ]# A3 ^' c2 }# i
标准原文：
& u6 w- w9 ]$ e44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
6 H! a( j o" Jcloth and then operated until the moisture has been evaporated and the heating surface of the unit has t" ]" ?; k. S3 `
attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during
% R0 P" ?6 b0 m- _) U; ?which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
9 }3 {2 k8 s+ q( P+ Y6 N" Vconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be5 }5 S+ _. N9 t% C* o( e. o
measured throughout the test.
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# A- g# i: {0 @ A" j- v' z44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the$ i! S6 c) |- s z+ e5 _- A5 l" f
test is to consist of operation of the appliance until temperatures are constant, with the clips in place on: L# V$ e# w" o" Z2 `
the heater.
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疑问如下：
& ]" }: {( D/ y$ b+ a1，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？
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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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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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1 S$ S- `# L' V2 v4，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？$ f3 \' p5 V& [8 v7 h0 I* {) J
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发表于 2016-8-26 22:13
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