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本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑
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- W, Z3 a3 Z8 I( J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！
7 i& A3 i" |. k( j标准原文：7 g# [4 C. n5 h# t8 |; h+ |) q
44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened# X. {! J3 O; \7 f" Q
cloth and then operated until the moisture has been evaporated and the heating surface of the unit has$ [8 N0 ?4 {2 K, s* r4 ~
attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during p' k2 @ S' D5 p+ {5 Y4 A
which it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be/ c! J+ m4 {6 q+ u5 Q, ~
conducted a second time. The complete cycle is then to be repeated again. Temperatures are to be2 z3 u# g y- N- t+ u0 R! s4 ^# H, H1 W
measured throughout the test.
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\( c9 d: e+ h+ O7 O. ~5 ^44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the* ]4 d t# X x4 ], X3 |8 |* X- U& n
test is to consist of operation of the appliance until temperatures are constant, with the clips in place on6 s2 V2 i( @% Q o- V) H. U
the heater.1 t9 j+ [0 C: v. `' }
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疑问如下：
! _2 R: d6 S1 U1，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？3 p+ ~2 f3 `* h/ E( G: o
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6 D8 \. O. l7 L: k+ 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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0 R: l) y/ n! o, B3，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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8 @+ D* y, J! m B% C3 Y6 ?" Q4，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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发表于 2016-8-26 22:13
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