Due the curve with waveform
10/350 μs, this type coupling short duration.
It should ensured that all supposed protection ele-
ments cables entering the building, such as
shields, rodent guards, etc., are connected the
equipotential bonding system such way to
carry lightning current.
Telecommunications line
Power
Frequency
Time
Characteristics galvanic coupling
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Chapter The internal lightning protection system
.TBS
Blitzschutz-Leitfaden
2018
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en
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2020/01/10
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Surge protection devices conduct the lightning current
in the incoming cables towards earth via the equipo-
tential bonding system.
The coupled lightning current has high energy and a
high frequency
