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引用第23楼iec60950-1于2008-10-08 14:42发表的 :$ e; I* X. }3 Y5 }
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,* P& ^: k# Q4 N& E
connected in parallel with the insulations to be tested, are disconnected. Inductors and" m$ Z2 b2 ~. f6 ~ h
windings which otherwise would prevent the test from being made, are also disconnected.2 l' S; n9 t: [4 {. K
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。
$ t; k4 C6 A! L4 T% H4 x6 e所以即便是按标准来说,在FUSE前也是不行的。 |
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