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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 : c3 N* j! o, \3 z+ ], L
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
. \- X4 l* k4 D& F% [, s/ E25 °C ± 10 °C. Switches with T-rating above 55 °C are placed in a heating cabinet without
: e4 |7 e: o% z3 o: a4 uforced convection and the temperature is raised to the T-rating of the switch. The
" \' d+ m% G5 v0 O6 L4 Htemperature of the cabinet is maintained at T ± 5 °C or T ± 0,05 T, whichever is greater.
' B, i6 z) R: Q/ D) X# V For switches only partially suitable for a rated ambient temperature higher than 55 °C,4 M. T: n' \0 |/ [8 y8 |$ }
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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