In article , w_tom wrote:
Again an assumption that something will stop or block a
destructive transient. Kilometers of air could not stop the
transient. Do you think that silly little RCD switch contact
will do what kilometers of sky could not? Again, protection
is about shunting (diverting, connecting, shorting) a
transient to earth ground. There is no way around that
fundamental fact. Nothing is effective at stopping such
transients.

My surge protector came with a guarantee that the company will pay to
repair or replace any equipment damaged through the powerlines when it was
plugged in to their product.
--
"Outside the camp you shall have a place set aside to be used as a
latrine. You shall keep a trowel in your equipment and with it, when you
go outside to ease nature, you shall first dig a hole and afterward cover
up your excrement." -- Deuteronomy 23:13-14