Seems to me the time between discharges is the same as the time between
pulses (I believe that was the intent). I don't have the standard in front
of me, but I think the max rate was 1/second, which means you could go
slower. In most tests I've seen, the several discharges at one point are run
at the 1/second rate, but then there could be several seconds or more
between the discharges at that point and the discharges at the next point.
At least one company actually runs tests at much higher discharge rates and
with many more shots/point than IEC recommends (the new draft of ANSI C63.16
goes to 50 shots/per point).

Michael Hopkins
Thermo KeyTek

----- Original Message -----
From: <am...@westin.org>
To: <emc-p...@majordomo.ieee.org>
Sent: Wednesday, August 01, 2001 4:06 PM
Subject: ESD - time between successive discharges


>
> Dear members,
>
> From IEC61000-4-2 and several EN-product standards, they specify the time
> between successive discharges to be at least 1 second.
>
> But what is the maximum time between each pulse ? I can not see that it is
> stated in any standards. I guess the test labs use 1 pulse pr second.
>
> I feel that the pulse rate can have influences on the EUT performance, so
1
> second compared to 3-5 seconds might be the difference between PASS and
FAIL.
>
> Any suggestions ?
>
> Best regards
> Amund Westin
> Oslo, Norway
>
> --
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