Greetings,

Problem: What is the correct dwell time to be used for radiated and
conducted immunity for 61000-4-3/61000-4-6 under EN55024?

My thoughts;

Section 8 of IEC 61000-4-3 (I have 1995): "The rate of sweep shall not
exceed 1.5 x 10 -3 decades/s." I understand we shall not exceed a 1 % step
size unles (as laid out in EN55024) we are prepared to increase our field
strength. (We are not.)

1.5 milli decades per second = 667 seconds per decade.

 At 1% step size, there are 232 steps per decade.

667 seconds/232 steps = 2.87 seconds per step.

Are there flaws in the above?

Thanks in advance,

Paul Scott


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