UL1993 UL test box

hxjiif · 发表于 2012-1-27 16:45:47

温升测试的UL box的尺寸有6英寸。8.5英寸。
到底选择哪个尺寸来做测试是根据什么原则来的？

qinglang · 发表于 2012-1-27 16:46:10

我找找资料给你

magebao · 发表于 2012-1-27 16:46:04

这个我以前跟UL工程师咨询过：看灯泡的大小，灯泡小就用6英寸的，次之是8英寸。。。如果灯泡尺寸过大，比如125W的荧光灯要放在恒温箱里面测试。回答完毕。。。感觉有用就加钱，嘿嘿

syyhiw · 发表于 2012-1-27 16:45:58

根据ＵＬ１９９３Ｃlause 8.5进行。

d601022246 · 发表于 2012-1-27 16:45:52

仔细品读以下条款：
8.5.3 A device shall be tested as follows:
a) If the device is capable of being installed in the smaller test fixture shown in Figure 9.1, it
shall have temperatures measured with the device mounted in the test fixture that simulates
operation in a typical recessed luminaire. The device shall be tested base up.
b) A device that will not fit in the smaller test fixture shown in Figure 9.1 but that can be
installed in the larger test fixture shall be tested in such a test fixture. The device shall be tested
base up.

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