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引用第23楼iec60950-1于2008-10-08 14:42发表的 :
5 ~' z! w9 G8 q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,6 h* P9 L4 l; G1 {/ E N8 ~0 ?. ?
connected in parallel with the insulations to be tested, are disconnected. Inductors and
8 ^* b: u8 {% D. ewindings which otherwise would prevent the test from being made, are also disconnected.5 r2 U$ r; j0 }, L* }$ L, A
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。
0 ~8 j, E% L1 N# W$ U0 J所以即便是按标准来说,在FUSE前也是不行的。 |
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