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在IEC标准中应该是先打泄露再打耐压,标准中有明确要求(IEC60335-1):# F5 G7 ?" x! S9 M
13.3:(承接13.2)The appliance is disconnected from the supply and the insulation is immediately subjected to a voltage having a frequency of 50 Hz or 60 Hz for 1 min, in accordance with+ S& a; Q6 ?0 N6 z
IEC 61180-1.6 N; s5 z1 y! `, W, o1 N
16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of
3 N* ^3 O2 x9 ?substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
8 s) u& i% o. Q" tof the test voltage for different types of insulation are given in table 7.
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6 D/ r. [9 s) x# [6 X# X美规中好像没有要求耐压与泄露的顺序,不过一般的做法都是先打泄露,让器具工作到热稳定状态再打耐压(考虑到产品在高温下的耐高压能力比冷态下弱)。
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以上仅为个人看法,如有不正之处请各位大侠指正。 |
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