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引用第23楼iec60950-1于2008-10-08 14:42发表的 :; w. @3 V6 u/ f. b+ Y0 _
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,
0 L6 Y1 ?+ M9 s% vconnected in parallel with the insulations to be tested, are disconnected. Inductors and
7 l' J- n+ ^. e5 |9 w- hwindings which otherwise would prevent the test from being made, are also disconnected.
* R1 B* Q0 w( E! `1 `3 r6 N0 f( |% _& fTable 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。
; w# H, O8 L! e+ Q- B; W/ o所以即便是按标准来说,在FUSE前也是不行的。 |
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