标题: 高压测试塑胶外壳加20cm 10cm的金属箔是作何考虑 [打印本页] 作者: antony44520 时间: 2012-11-13 15:51 标题: 高压测试塑胶外壳加20cm 10cm的金属箔是作何考虑 高压测试塑胶或无金属外壳，都需加20cm 10cm的金属箔，此处最终的意义是什么？作何考虑？请教？作者: jsspace 时间: 2012-11-13 16:02
其面积是模拟人手7 x9 C/ d M: O; a
另外测试的时候可以针对一个面积进行测试，否则只能针对一个点作者: 地瓜 时间: 2012-11-13 16:04
提示: 作者被禁止或删除 内容自动屏蔽作者: 地瓜 时间: 2012-11-13 16:09
提示: 作者被禁止或删除 内容自动屏蔽作者: shinylee 时间: 2012-11-23 17:47
是模拟手掌的面积，或者只能测试一个点。这个很容易理解的。# ^* O. F. e2 ?7 x% o# H 作者: lucky 时间: 2012-11-23 18:19 本帖最后由 lucky 于 2012-11-23 18:24 编辑 # M* L6 W# \, p; _
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贴金属箔是漏电流的要求吧？* b5 \" b4 v9 A1 L) W
32.4 If a conductive surface other than metal is used for the enclosure or part of the enclosure, the leakage current is to be measured using a metal foil with an area of 10 by 20 cm in contact with surface. " f( b: Z9 t/ rWhere the surface is less than 10 by 20 cm, the metal foil is to be the same size as the surface. The metal foil is not to remain in place long enough to affect the temperature of the product.3 V0 a5 f, v( J- F
- r% U: z6 v" u! ^( f2 _很奇怪，非金属要打高压吗？" q) m5 x+ M& |, N, {+ K0 e. o' A
, U! y1 p7 K! G' D U: z8 F37.1 An appliance shall withstand for 1 minute without breakdown the application of a 60-hertz essentially sinusoidal potential of the value indicated in 37.2 between the following:) v4 n) b" T# Z
a) Uninsulated live metal parts and the enclosure. A non-conductive enclosure is to be wrapped in conductive foil.; V% _$ f' W }6 U
b) Terminals of opposite polarity.* X9 Q3 d2 u0 T6 d# s
c) Uninsulated live metal parts and accessible dead metal parts. 5 p( T' A8 q9 b, Z) M' u; E9 kd) Uninsulated live metal parts and grounding contacts of grounding type receptacles. ! T3 h7 o! G2 o% {/ {( ]e) Primary and isolated secondary circuits. 1 {0 {# y: \, c( _+ j) f% p* ~ 3 s( F2 q* t# l3 g& `) V& g* B是否是欧规的标准要求？ 7 S3 {3 f( t- d4 d作者: 山炮 时间: 2012-11-23 20:38
无需使用该尺寸的金属箔，无需模拟人手。作者: jackyhu68 时间: 2012-11-24 08:07
那豈不是多此一舉？