This potential in-
crease causes transmission the lightning current
over the building's earthing system and also over the
power supply systems and data cables the adja-
cent earthing systems (adjacent building, low-voltage
transformer).
If lightning strike hits the external
lightning protection system or
earthed roof structures capable of
carrying lightning current, the light-
ning energy can safely dis-
charged earth potential. direct lightning strike poses risk of
loss human life, public services (telephone), cultural
treasures (museums, theatres) and economic goods
(property).
TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
17
Chapter General introduction
. rooftop antennas), the lightning
energy can safely discharged earth potential.
But lightning protection system alone not enough:
due its impedance, the building's entire earthing
system raised high potential.g. The lightning protection system protects
the building and people from direct lightning impulses
and fires.TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
Danger: direct lightning strike
S1: Direct lightning strike into building
If lightning strike hits the external lightning protection
system earthed roof structures capable carrying
lightning current (e
