# n: D) D' h% [; n( W产品也才20KW,问题是我们没有这么大的温箱啊./ c$ }* H+ @ k. ? p4 U1 b
要是那些500KW的是怎么测量的?作者: jjlamshushushu 时间: 2013-10-31 13:52
不需要温箱,相对封闭的室内就可以了作者: 清水白菜 时间: 2013-10-31 13:58
这个要看产品申请的环意温度,标准里是分大于50度和小于50度来进行,相关条款内容见如下:, ?# ?& ]. h& |; R% x
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CL 4.3.2.1 of IEC 62109-1: ! S8 \% V. M2 h# W; S3 Q. RTests of equipment rated for use in ambient temperatures up to 50 °C may be conducted at , C# f. O* @# |any ambient temperature in the range given in 4.2.2.1, in which case the difference between7 s5 ]: F0 t7 X1 E) m: J) p
the maximum rated ambient temperature and the actual test ambient is to be subtracted from 9 _. x+ T( R% _3 Zor added to (as appropriate) the measured temperatures for comparison to the limits specified $ p- s% M: M. q/ ibelow. D* D! E- w, [$ J! J
PCE rated for use in ambient temperatures more than 50 °C shall be tested at the maximum0 b( a. H' t3 s; F; K! M' U
rated ambient temperature ± 5 °C. The difference between the maximum rated ambient 7 u# k) E2 J% _% j# r+ Otemperature and the test ambient is to be subtracted from or added to (as appropriate) the2 n4 a6 S- X, P) d7 N
measured temperatures for comparison to the limits specified below., j0 R# F& p- @& u, W
5 G* R5 p, O* k, v( q" c不过就算是申请的环意温度小于50度也一般会放在环温箱里测试,或者有可控温升房也行,因为逆变器基本上在申请的最高温度(如50度)下进行温升测试时会出现降额,而如果不用环温箱采用直接测试后加上去后的结果会严酷的多,大多都会Fail。作者: 清水白菜 时间: 2013-10-31 13:59
4.2.2.1 Environmental conditions/ s' s* p$ d3 T. Y
Unless otherwise specified in this standard, for example with regard to environmental / ^6 o! B: B$ {7 {" g3 W6 Bcategory as defined in 6.1, the following ambient environmental conditions shall exist in the test location: 4 ~# ]8 v+ [6 [! o Ra) temperature of 15 °C to 40 °C;, ^# ?" S7 V! K% h2 E" c( i
b) a relative humidity of not more than 75 % and not less than 5 %; ! Z o& t+ Y& j; ?( J! \6 nc) an air pressure of 75 kPa to 106 kPa; ! i- s9 M, W+ n1 L# fd) no frost, dew, percolating water, rain, solar radiation, etc.作者: lanfeiyuner 时间: 2013-10-31 19:41 本帖最后由 lanfeiyuner 于 2013-10-31 19:42 编辑 m! @; y5 o4 z, y% l( ]8 H
清水白菜 发表于 2013-10-31 13:58 . A/ [$ \* \* ~: T# Z$ L这个要看产品申请的环意温度,标准里是分大于50度和小于50度来进行,相关条款内容见如下: " R$ O' L- M" r# ]/ G, ?% \& K7 b' J4 |" y; P# w ]' `0 ]) N
CL 4.3.2.1 o ...