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标题: UL859中直发器和卷发器温升测试只换2次湿布就完成测试吗? [打印本页]

作者: shuaijiachen    时间: 2016-8-26 22:13
标题: UL859中直发器和卷发器温升测试只换2次湿布就完成测试吗?
本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑 & N9 y0 y- l/ D! b! C/ w8 H
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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!( R8 `, R5 }: S0 `% _
标准原文:
5 ]1 B- Z) ]5 p9 M. Z0 _44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
7 w0 ?( a4 T" q0 t6 M1 rcloth and then operated until the moisture has been evaporated and the heating surface of the unit has; y/ m' s1 t( |* Q, ^  r$ K" O
attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during9 a% q0 \( w8 u$ y# t& n& h
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
6 m: i/ x0 E( w# Y5 p7 o+ U4 o% gconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be
# t4 P# w) Y- @% g) Gmeasured throughout the test.( J. Y, Q2 T  {: C0 e, Z
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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  L% z- k7 e: t+ ^5 ]+ _
test is to consist of operation of the appliance until temperatures are constant, with the clips in place on
! P" e/ Q; P9 o2 q# M. y% ethe heater.3 f6 x2 `/ \3 x8 H$ J+ r& V; I! c

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6 S7 [/ @- j, M3 Z疑问如下:$ l8 D* ~" ^; ?$ i
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?
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" o4 n- D; j, ^; L8 a; r( O2,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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1 S3 |: a7 W  S4 U$ V5 H3,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?' s1 U( q4 q6 s" {$ j: i4 d

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- k3 z7 e5 |6 n4,为什么44.1.19中是测试2cycles,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?
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