ki
Dependent the selected protection class the
lightning protection system
kc
Dependent the (partial) lightning current that flows
into the conductors
km
Dependent the material the electrical
insulation
L(m)
Vertical distance from the point at
which the separation distance (s) calculated
up the closest point the equipotential bonding
Formula for calculating the separation distance
TBS
Blitzschutz-Leitfaden
2018
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Chapter The external lightning protection system
.Isolated lightning protection with correctly maintained separation distance (s)
Application example Roof structures
Situation
Air-conditioning systems, photovoltaic systems, elec-
trical sensors/actuators metallic vent pipes with
conductive connection into the building.
Solution
Isolation through the use separation distance (s)
Note
Risk inductively coupled surges must con-
sidered
