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本帖最后由 shuaijiachen 于 2016-8-26 22:17 编辑 ( `, w' h) T P" D# d7 a1 O+ D
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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！2 {: A$ M& d6 m! ]
标准原文：! u2 v- ?3 t0 }& W& I
44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened
7 c9 j6 ^8 E: }8 w2 f9 Qcloth and then operated until the moisture has been evaporated and the heating surface of the unit has( @0 \) w7 p& C4 f
attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during% w8 d1 q/ J2 |( n# {
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be& ?3 b. c- B4 t/ `& X b, t) Q/ X5 S1 G h
conducted a second time. The complete cycle is then to be repeated again. Temperatures are to be3 ^5 S8 l) h0 A' G3 c6 ?+ u
measured throughout the test." `8 w& i, [ 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
; G6 j6 a& H& Z! j7 ?test is to consist of operation of the appliance until temperatures are constant, with the clips in place on
" ?1 ?/ I' L6 ~# n* b7 Tthe heater.
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. d, n/ J1 x+ M# L" n疑问如下：
+ ^2 E. i8 {& }( X; r5 j$ z1，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？9 J( b! l2 R" J6 ?/ |% n
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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？7 D F; G6 f8 r$ S9 }6 \# W
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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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发表于 2016-8-26 22:09
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