In October 2004 MCG presented an historic paper
to the International Conference on Lightning Protection in Avignon,
France. This paper unmasked the hypocrisy of requiring SPDs to be
tested by a 10/350 µs waveform and called for an international
standardization. Three weeks later the IEC was forced to begin the
process of canceling its mandatory 10/350 test requirement.
You can read it all in the following links.
Does the 10/350 waveform really exist?
A few German manufacturers try to persuade us that only
surge protectors tested with a 10/350 waveform should be used at
building entry. These same people told us that the
international trend was toward accepting the 10/350 waveform and that
the IEEE was about to adopt the 10/350 waveform.
But this past year the newly
released IEEE Trilogy categorically reaffirmed the
use of the 8/20 waveform in SPD testing.
Does the 10/350 waveform
represent "direct lightning" as a few have claimed?
Based on factual recent research, Scientists and
official organizations from around the world find
that the 8/20 waveform is preferable for SPD testing. Studies
are amazingly consistent in their findings that direct lightning is
actually best represented by the 8/20 waveform.
Below are technical materials for those who are seeking
the truth about this issue:
