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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):
7 [7 I1 o: U: w6 ?; O+ P13.3:(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
. N, b1 f: O: T* C1 YIEC 61180-1.3 x' J3 z) }! T. r
16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of' b R' i' \2 @; n1 n
substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
* \* [; t8 d, M1 r3 {of the test voltage for different types of insulation are given in table 7.
+ R+ M1 x+ P2 F) g' _" b: t/ Z+ p+ U
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)。; ], w$ A0 c8 q" _
9 {, G$ n! {3 o- e& O0 {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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