I've learned the importance of a good ground for surge protection.
According to Brick Wall, they do the best surge protection even without
ground. I'm looking for more info on their system.
Anyone got a schematic of a Brick Wall or similar surge-device I could
study?
Thanks, Stefan V
Unless you obtain a Brick Wall unit and strip it down and surmise its
operation, I doubt you will find any meaningful technical data on it.
However, from their web pages I gleaned this piece of info;
Brick Wall surge protector products are based on the current (hence
voltage) limiting of a massive inductor. Residual energy that leaks
through is captured by a series of electrolytic capacitors. There it
is slowly leaked back to the neutral at a harmless level. Outside of
trivial amounts of parasitic capacitance our Series Mode surge
protectors do not put any surge current on the ground of your systems.
Engineers of an MOV based surge protector face the dilemma of what to
do with potentially large amounts of surge current. They don’t want to
overload the neutral and want to prolong the life of the MOV. Using
two MOV's and diverting equally between the ground and neutral wire
prolongs MOV life and prevents overcurrent on the neutral. Series Mode
surge protector technology presents no such dilemma.
Reading the blog on their pages does not fill me with confidence as to
the effectiveness of their apparently "amazing technology".