清水白菜 发表于 2011-12-28 11:34

大家如何理解如下定義，大氣壓在為1013Pa

圖片中的相關定義如下:
http://bbs.angui.org/data/attachment/album/201112/28/1133343iu5iwzw7wri3l4l.png
3.14
homogeneous field
electric field which has an essentially constant voltage gradient between electrodes (uniform field), such as that between two spheres where the radius of each sphere is greater than the distance between them

NOTE The homogeneous field condition is referred to as case B.

3.15
inhomogeneous field
electric field which does not have an essentially constant voltage gradient between electrodes (non-uniform field)

NOTE The inhomogeneous field condition of a point-plane electrode configuration is the worst case with regard to voltage withstand capability and is referred to as case A. It is represented by a point electrode having a 30 μm radius and a plane of 1 m × 1 m.

清水白菜 发表于 2011-12-28 14:50

補充下，此為IEC 60664-1中的兩個定義，有興趣的可以一起來討論下。

至尊宝 发表于 2011-12-29 15:37

lz，再多说些吧，我没有看明白
sorry

清水白菜 发表于 2011-12-29 17:16

Sorry, 我是想說大氣壓強為1013Pa時，我們當選CASE A還是CASE B， 就以普遍的AV類產品，homogeneous field與inhomogeneous field這兩個概念在IEC 62368-1中也有說明。

琥珀流云 发表于 2011-12-29 22:54

哎呀呀 太晚了 明天再来看看:) 不过不太懂这个标准

山炮 发表于 2011-12-30 00:12

1013Pa,好低的气压。
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