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):
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
IEC 61180-1.
16.3:Immediately after the test of 16.2, the insulation is subjected to a voltage of
substantially sinusoidal waveform having a frequency of 50 Hz or 60 Hz for 1 min. The values
of the test voltage for different types of insulation are given in table 7.