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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。
& h) Y- e2 q7 g# ], v" d3 Yhttp://www.angui.org/read.php?tid=8740
. r9 p5 Q P0 }在有些标准中有定义：0 z8 Q" S7 y0 E6 {: T0 K
1.引用kuiyin001 \Hand-held appliances are operated for 20 min.
- X5 m3 d$ `0 v; TOther appliances are operated until steady conditions are established.--60335－2－32 章节11.7( q( R5 e: S) a7 m5 t# J' t$ P; T
2 }$ I# R" g: | z# g% e& q
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 /37.1.10
, @: R7 n. G6 |3.引用caballo31570 I b5 N$ |: _
IEC60598:7 D8 J0 I9 Y ]4 v, d1 R) ?: P
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. & h3 ~. d& ] W5 A! [. e2 \6 J
UL1029:
/ N; y% F- y* a21.1.6 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.# f7 h$ Z7 _+ z& J
UL1278: |: o/ g3 g5 H' y2 Q6 A2 X
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.
9 y' }. W2 O7 |; ?8 D3 G8 K: p4. 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$ d5 Z) P! X3 I9 G1 V
请各路高手多多指点及补充。 |
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发表于 2011-7-5 16:49
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