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本帖最后由 shuaijiachen 于 2016-8-26 22:17 编辑 - h- t& n9 Q( J1 I9 B" Z/ a
' G4 m# i0 R/ p5 x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!
0 g/ U5 @ Q3 {' h/ w& j9 a0 a% T标准原文:
0 y& p6 ^% T; C: c, o7 f; @$ p* d4 b4 e44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
! u6 `/ g; `( f1 `3 Ocloth and then operated until the moisture has been evaporated and the heating surface of the unit has
6 v/ z# G9 ^$ w Oattained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during3 O/ d5 }# d1 B
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
: E. _5 u8 \/ vconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be
. k8 _- F3 u/ _# q1 y) Q% i2 w( R. rmeasured throughout the test.! r# m& u5 n. Y0 c* `% ?* _; O2 g
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: A' G0 X% B( {44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the
" s+ D# f ~8 ]9 e4 xtest is to consist of operation of the appliance until temperatures are constant, with the clips in place on
$ B% n1 l, V8 z3 @the heater.
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疑问如下:1 ?7 o5 x2 \1 s4 x- S S' l
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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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。+ ^5 y0 n7 R5 l+ U4 ^& I
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4 L0 J! X8 {/ ~0 T3,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?% `3 e* O# ?% c2 \
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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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