Put an impulse down a wire. Where on that wire will the
impulse voltage first be seen? On the near end where the
impulse starts? Obviously not. Impulse first appears at the
far end of wire. How can this be when it takes the impulse 1
foot per second to get to that far end? Topology as defined
by Ron would erroneously conclude impulse first appears where
impulse was first applied to wire.

Why do we know that topology not relevant? Its a simple
second year course called E-M fields. One first learned basic
concepts before promoting rubbish such as topology and
'faraday cage'.

Notice that Ron Reugh also cannot provide MOV datasheets to
demonstrate protection by vaporization. He is typical of
those who would recommend plug-in protectors. Facts remain
unchallenged: a surge protector that vaporizes during a surge
is ineffective and even violates the MOV manufacturer's own
specifications. Ron's best technical response:
Gibber ignored.

Ron Reaugh wrote:
"w_tom" wrote in message
...
Please feel free to show us an MOV datasheet that says
... good surge protectors are destroyed by big surges just
as they are designed to do. The good one FAIL closed
circuit where protection is even better!

That claim is classic urban myth. MOV data sheets define
normal operation. MOV is at end of life typically when it
degrades by about 5%. How can it degrade 5% and yet
vaporize? It cannot. Bottom line remains - a properly sized
protector shunts the transient and remains fully operational.
Eventually MOV degrades; does not vaporize. Vaporizing is
when the MOV grossly exceeds manufacturer specification - is
grossly undersized for the task. But purveyors of undersized
and ineffective protectors want consumers to believe their
overpriced protector should vaporize on every surge. Scam is
the better word.

Gibber ignored.

In the meantime, there is no topology in electronic
circuits.

And this wacko nonsense is from the guy who brought up DA
design! At high frequency it is most ALL about topology!

Electrically, a shunt mode protector is not
"between" the appliance and a surge no matter how much junk
science topology is rationalized.

Did you ever hear about the speed of light or about 1 foot
per nanosecond?

But then this thread is full of myth purveyors promoting
such junk science reasoning - such as MOVs are designed
to protect by vaporizing. Which plug-in manufacturer do
you work for, Ron Reaugh?
...