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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):
( z6 ^5 t0 Z( v% O13.3:(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 with4 R" a# a, i4 L
IEC 61180-1.
5 d) h1 i! f: _16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of0 `: h- v1 U8 l; l
substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values* F: @! [/ w8 p
of the test voltage for different types of insulation are given in table 7.
; a4 ~8 F/ `4 x* E1 p4 \2 }+ [, F, B; }! d! y
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 c5 e6 n: I" m9 i$ I; y8 a# C6 H5 u# C/ a
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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