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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):
5 K1 P; o: x0 {& }8 d3 X& B; L4 ~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
4 D0 J0 c5 H! f6 n1 b% P6 cIEC 61180-1.
, K/ H0 X$ @! L- Y6 v( z16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of
/ D1 o: @) Y4 y& Z1 p: {substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
4 ?* \5 u0 t9 W$ z" Hof the test voltage for different types of insulation are given in table 7.! O! a. l w' b1 z* o
. ]$ Q* o }/ f5 ?- f/ T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)。, ^1 Z8 v6 v9 ]" \3 V6 e! q& c
H) P7 f6 g) D$ e- `, ~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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