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UL1310的泄漏电流和其它标准要求的不同(如测量位置,测量网络), 测量位置应该有4点:8 U$ V. I3 r* b: g
(a) between exposed conductive surfaces and the grounded pole of the supply circuit.
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(b) between output circuits and the grounded pole of the supply circuit.
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) K( Z; Q6 m' W* h% O(c) between output circuits and exposed conductive surfaces.
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* d: w; U+ q# p/ i& ^- y(d) with output circuits conductively connected to exposed conductive surfaces, between output circuits/exposed conductive surfaces and the grounded pole of the supply circuit.
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如果你的电源产品初次之间没有跨接电阻或电容, 那么测出来的值应该很小,可能就是0.05mA左右. |
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