|
|
本帖最后由 shuaijiachen 于 2016-8-26 22:17 编辑 * T' s7 ^( {1 F
3 F$ V) E% s- I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！" k3 n/ }2 C) @+ x% y. H
标准原文：
2 j: j- P. F5 {44.1.19 An electrical heating element intended for application to the hair is to be loaded with a moistened% ~3 c$ m* f6 Z" l9 Y' k! x4 `' k
cloth and then operated until the moisture has been evaporated and the heating surface of the unit has
/ }/ v: [( o: e E* i9 h: ~attained a temperature of 204°C (400°F). Following a 2 minute period with the unit disconnected, during
6 q; _& ~, A' v/ Uwhich it is to be reloaded with another moistened cloth, the heating and evaporating operation is to be
/ H. S2 s1 r' D' m! J- w' M Mconducted a second time. The complete cycle is then to be repeated again. Temperatures are to be; \/ P6 ~. F; p) X
measured throughout the test.
4 z5 C0 O. A5 f* d+ o5 T+ F6 T4 j: c6 J
0 K% {2 l, d, t' E( U0 X" X' E
44.1.21 For an appliance in which clips to be applied to the hair are heated by an external heater, the
7 T6 K* e; d' Ztest is to consist of operation of the appliance until temperatures are constant, with the clips in place on) H; `: r8 F9 Y+ o+ w7 r
the heater., k( w: y- P6 j
3 X+ g0 D7 Z* ^' O
3 o6 g2 t- T0 \5 f) e疑问如下：3 _/ ? D+ ]* k6 P% E
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？
8 ?9 g; K/ E) \- Y* q1 t; h
" q) r9 H/ G5 x& C' n3 s' [6 _
# Q3 o- R1 i3 I0 d+ L$ p4 j2，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。 S, W f7 P4 H T) G5 D
: ] H3 e/ t2 }; p$ u) t& W
- T9 Z% t* p# [9 G- ^3 S
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？$ g$ y& |6 K1 o2 ^
& }6 u5 k6 s; \# i: J' |/ o
6 j4 G+ U3 G* J& Q- [( p
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？
" M2 f1 V$ G3 C |
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2016-8-26 22:09
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡