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补充楼上:标准里面的100mA,200mA是对于设备的要求,并非判断测试结果的判据。
7 G, }9 ?5 h) w& B在60065里10.3.2有规定
9 J1 S$ T/ V3 P, G* {# zThe test voltages shall be obtained from a suitable source so designed that, when the output TERMINALS are
9 {, O, g$ |/ ^) X9 r; Sshort-circuited after the test voltage has been adjusted to the appropriate level, the output current is at
/ P4 ]4 H+ j% X( Bleast 200 mA.& E1 ?5 ~7 R+ Z: \$ `- v
An over-current device shall not trip when the output current is less than 100 mA.+ P' z* Z: n& G5 W/ j, z, b+ r
试验电压应该由合适的电源提供,该电源的设计应保证当试验电压调节到相应的等级后,短路输出端子时,输出电流至少为200 mA.
5 t8 G' o1 `+ x: f& d3 B* _当输出电流小于100mA时,过流装置不应该打开。' p3 y. K/ b! e9 j: j- G
' e# b7 W( A: ~$ V
所以一般来说,如果是65的规章,耐压测试机不能直接接到市电上, 必需用隔离变压器的source提供power. |
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