IEC 1000-4-5 is written with DC supplies in mind. In fact, generic and
product standards in the EU require testing DC supply lines using IEC
1000-4-4 and 1000-4-5. Most surge simulators designed for surging AC lines
can also be used for surging DC lines (some require an option to work on DC
lines;
Sarmad, I think you've already nailed it -- for Europe anyway!!
According to the Generic Immunity Standards, EN61000-4-5, formerly
called IEC 1000-4-5, is to be applied to DC input power ports for most
CE Mark compliant products. The only way you CAN use another standard
to apply this test is if
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