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引用第0楼小笨于2010-09-23 23:24发表的 61058的温升测试的环境温度问题 :- {3 q9 t+ o5 W- P
一个电子开关(继电器控制输出),它的环境温度标T45,请问测量正常温升是在环境温度20度测量吗? 请参照IEC61058-1标准中的第16.2.2条例Switches with a T-rating up to and including 55 °C are tested at an ambient temperature of ' T" k1 [5 S' p- z
25 °C ± 10 °C. Switches with T-rating above 55 °C are placed in a heating cabinet without 8 L! K: a4 C2 m* I. F1 p1 _
forced convection and the temperature is raised to the T-rating of the switch. The # y7 ?& A7 k0 G4 m' u0 T5 X+ X
temperature of the cabinet is maintained at T ± 5 °C or T ± 0,05 T, whichever is greater. , ^ G! ]( Q8 A: a$ |+ \1 p2 A
For switches only partially suitable for a rated ambient temperature higher than 55 °C,. {$ }) a$ r, I
所以,楼主,你的做法是对的。只要在25 °C ± 10 °这个范围里就OK了。 |
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