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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):
6 e( R H$ L7 W6 E8 I0 A13.3:(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( }) b1 \. _2 o
IEC 61180-1.7 J, p& f9 @6 u& o; b( [" I' W0 B* I
16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of
, k3 D+ n. H5 zsubstantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
9 C, R1 K% M; z! `' m/ sof the test voltage for different types of insulation are given in table 7.
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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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; r0 W' ^, t G2 G3 g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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