|
|
看了寒烟翠以下链接的文章后，真是受益颇多。只是对试验稳定条件建立时所对应的时间没有明确的定义。
& q& ~3 l. o; I9 {# C8 m) vhttp://www.angui.org/read.php?tid=87402 l% n f) p: z/ v. L
在有些标准中有定义：
9 {6 o3 D9 r7 j. e( g2 t1.引用kuiyin001 \Hand-held appliances are operated for 20 min.9 o& ]/ f! x! N+ x* Y: t
Other appliances are operated until steady conditions are established.--60335－2－32 章节11.7$ Q8 q4 ?2 z6 [' p
& ?- n$ ~' E; o) Z M3 U0 g1 s6 ]2.The temperature is considered to be stabilized when three successive readings, taken at intervals of 10 percent of the previously elapsed duration of the test but not less than 5 minutes indicate no change.---UL859 /37.1.106 }) f9 {. n6 R, U: {1 N
3.引用caballo31572 I; j8 R2 U: _9 B' }9 a
IEC60598:: ?* o7 ?# ^& @, b2 g
12.4.1 f Measurements shall not be taken until the luminaire has stabilized thermally, i.e. temperatures are changing at a rate less than 1 °C per hour.
6 H1 x) D" Y- S5 S% N2 vUL1029:
8 m! K. D* C( y4 m21.1.6 A thermocouple-measured temperature is to be considered constant if three successive readings, taken at not less than 15-minute intervals, indicate no upward change.
1 M0 w7 W1 Q+ EUL1278:& ^# }% A/ m! R# H* B% W) ^
39.1.8 To determine whether a heater complies with the requirement in 39.1.1, it is to be operated continuously until constant temperatures have been reached. A temperature is considered to be constant when three successive readings, taken at intervals of 10 percent of the previously elapsed duration of the test (but not less than 5-minute intervals), indicate no change.( x" n- G1 J C
4. 引用寒烟翠：所谓的稳定的意思是一个小时内温度上升不超过1度就可以停止测试，当然是指所有的点；不知是通标EN60335中哪个章节？5.UL1082第33.1.8条等等2 ^( L; [ G) w6 n
请各路高手多多指点及补充。 |
|
/1 
|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 2011-7-5 16:49
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
楼主