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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。
q0 T: |6 Y7 F9 t" @) @& Vhttp://www.angui.org/read.php?tid=8740
3 u U- _5 e) N' r2 `在有些标准中有定义：) u! V: o. Y/ ~/ s0 F; z
1.引用kuiyin001 \Hand-held appliances are operated for 20 min.7 @% f+ ^7 ~1 D1 x6 z8 g0 f6 B/ Y
Other appliances are operated until steady conditions are established.--60335－2－32 章节11.7
5 s$ f9 \8 A9 \+ `. S' E
0 w4 _: u3 T9 L0 g9 |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' F! w. |3 o% ?1 u0 y
3.引用caballo3157
8 S( h+ ^+ D. O$ k4 k9 EIEC60598:6 o9 u D0 L w
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. ( N2 e% }. Q4 q/ K$ \, z2 S
UL1029:8 L" `, C3 L0 n$ U6 p' G& R
21.1.6 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.
' U' [/ b6 ?( V8 B! Z h9 ?UL1278:8 Y/ ^' ^9 a9 } y q. Y0 O
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.
- V' O% k' H' L6 E4. 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
" T: E1 N$ ]1 Y. g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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