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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。
' Q. N/ y, L' g% L3 Rhttp://www.angui.org/read.php?tid=8740' a! Y2 z! x- `# O* l+ B; f
在有些标准中有定义:# O4 I- Y& i+ Z* f& v& W
1.引用kuiyin001 \Hand-held appliances are operated for 20 min., a' L( S; l8 I3 p: W2 L
Other appliances are operated until steady conditions are established.--60335-2-32 章节11.71 f O4 Z1 k" K9 S$ V6 f
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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
7 q0 k7 R1 |; C4 G; \3.引用caballo3157
0 ]7 \3 z0 V* a# |8 f+ P- `IEC60598:
0 |# V6 S$ }% w& d! [# p12.4.1 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. - V& q/ C' q, t- ?" @& p! [
UL1029:
' k& ]; S1 K5 z3 w21.1.6 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.
5 Q, s0 t! |1 k1 RUL1278:) [9 R8 L- E! {9 {4 E
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.
0 q0 w7 i% Y. S4. 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0 [6 g) E6 K+ h k' G2 C. V
请各路高手多多指点及补充。 |
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