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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 d7 g, c( N, j
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 b! X: b- I+ Z% o: g
25 °C ± 10 °C. Switches with T-rating above 55 °C are placed in a heating cabinet without
& d6 I# g1 X- d6 f" B7 Bforced convection and the temperature is raised to the T-rating of the switch. The ) g3 d+ I2 S! \, N3 ^
temperature of the cabinet is maintained at T ± 5 °C or T ± 0,05 T, whichever is greater. $ e+ {4 k t+ X( n% A4 w- Q: i
For switches only partially suitable for a rated ambient temperature higher than 55 °C,
1 `" X; ?+ c O, K3 E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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