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本帖最后由 shuaijiachen 于 2016-8-26 22:18 编辑 : Z0 o ?' i6 x( g6 S
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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!, r2 R3 ]# R; J. F( ^0 I4 ~
标准原文:/ u1 l5 X2 I1 V2 N$ I7 P' Y
44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened# F5 a: F- m) Q) k9 m R
cloth and then operated until the moisture has been evaporated and the heating surface of the unit has, k9 b% B; }' o3 t1 n2 i
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
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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
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the heater.
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5 n8 ]4 D- H2 U4 P5 A5 R疑问如下:9 _& [) N* B3 D4 `' Q$ c! ^5 \( x
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?, X3 b. C6 B9 W
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6 z, H5 [; v7 v u7 F4 R3 D4 B2,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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% r \. g7 ?% W4,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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