alt.engineering.electrical

On Mar 1, 3:33 am, bud-- <...@> wrote:
> If you are talking about a direct lightning strike to a building, I
> specifically exclude them above. Protection includes lightning rods. If
> you have a tower antenna you are talking about a whole different level
> of protection.

Lightning striking utility wires down the street may be a direct
strike to appliances inside a building. We install protectors to make
direct lightning strikes irrelevant. 'Whole house' protectors are
sized and earthed so that direct lightning strikes do not find earth
ground, destructively, via household appliances. This is how
protection was implemented even 100 years ago.

Lightning view utility's AC electric wires as an antenna connected
to household appliances. What was proven in radio stations also
applies to protecting household appliances. Protection proven 100
years ago for radio station antennas and telephone company facilities
is also provided by a properly earthed 'whole house' protector. Only
plug-in protectors don't do what has been proven effective for over
100 years.

Type of surge that typically overwhelms protection already inside
all appliances is the direct lightning strike. We install a 'whole
house' protector to make direct lightning strikes. Bud does not
recommend plug-in protectors for the type of surge that typically does
damage? What kind of protection is that? Profitable. Ineffective.
Does not remain functional after a typically destructive surge.
Appliances can be damaged by a direct lightning strike if lightning to
AC utility wires is not earthed. We earth an effective protector
for direct lightning strikes. We install plug-in protectors to
maximized profits.

Discussion about effective protection is about making the direct
lightning strike irrelevant - so that the protector even remains
functional. 'Whole house' protectors earth direct lightning strikes
AND remain functional. Bud admits that plug-in protectors do not do
what is necessary for effective protection.