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本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑 5 w. w p* W& b4 q( O, o
5 ^- `8 \) c& U$ y" E# S5 F1 U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!
! V0 i8 l' y- ~0 o标准原文:4 ]! S$ l$ x' |+ j# Q
44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
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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+ w8 A5 j% W' B
measured throughout the test.7 c& W! o/ E; z" u" d; D! {
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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& Q( m8 o/ Z0 I) y$ s2 t5 r
test is to consist of operation of the appliance until temperatures are constant, with the clips in place on: J& R6 L& X) S9 v3 x; X! `
the heater.
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疑问如下:! ?5 T( f/ f! o: ]5 J% \( ]
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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: G# r$ j y; J' V/ N! f2,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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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?
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