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引用第23楼iec60950-1于2008-10-08 14:42发表的 : A: e2 j5 ]! C' p3 y$ [
从标准意义上来说,放保险丝前面和后面都是允许的,前提是VDR满足标准的相关要求!VDR通过认证,是不需要承受基本绝缘的抗电强度测试,测试时需要断开此元件。 IEC60065"Resistors, capacitors and RC-units complying with 14.1, 14.2.1 and 14.2.2 respectively,
/ K6 t0 s; k. ~: _2 h4 lconnected in parallel with the insulations to be tested, are disconnected. Inductors and
6 H& h$ G6 d* q* I a: x1 cwindings which otherwise would prevent the test from being made, are also disconnected.& L$ D$ q" u# q# J
Table 5 – Test voltages for dielectric strength test and values for insulation resistance".可没说要断开压敏电阻来测抗电强。. H! a. |' Q2 h. B4 y
所以即便是按标准来说,在FUSE前也是不行的。 |
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