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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):
% Y: N0 E$ N& E/ |6 y0 X4 D: {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
. O9 k, T! r3 FIEC 61180-1.! Q1 Y# x1 ?! a
16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of, r/ A* t. n2 m# T) C0 m) d7 d
substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
& [) c1 p Z9 j8 x1 B6 ]( @0 O1 ^of the test voltage for different types of insulation are given in table 7.
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6 O Z5 f5 W6 v3 |2 M. b b7 `* n- }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)。: X! r0 K: q7 Y6 F4 P
]3 @$ _' f. ?/ O+ ~& {1 I N. W
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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