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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):
& U. \2 x1 \. l, S13.3:(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 with9 d9 I) q1 C* U9 x# ~0 J6 J
IEC 61180-1.
, ]3 O; g/ y _/ r! U! a16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of
$ K& {; ^6 W' T& e- ]" bsubstantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values1 o5 q A# X& g3 W" Y
of the test voltage for different types of insulation are given in table 7.3 B. M- T! `; c& [1 X/ J5 D; W
& g r. b7 Q7 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)。% {: ^! o; p a3 }7 K
4 E( S2 U6 k/ t2 }
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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