The power and data cables must integ-
rated into the lightning protection equipotential bond-
ing the entry the building. case direct
strike the insulated air-termination system, partial
lightning currents can occur the cable due the in-
crease potential earth and presence different
earthing systems. Careful use should therefore be
made lightning arrestors this area.
Busbar
Coaxial surge protective devices (variable)
Shielded building
Transmitter/receiver
Connection lug
Foundation earther
Antenna
Energy cable
Data cable
Coaxial cable
Air-termination system with separation distance (s)
Insulated lightning protection antenna system and various earthing systems
TBS
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Chapter The internal lightning protection system
. order to
avoid arcing from the shield the cable onto the sig-
nal line, the lightning arrestor equalises the potentials
of the shield and the signal line.TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
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2020/01/10
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14:42:54
The insulated structure means that partial lightning
current able flow through the antenna cable The
precondition that the separation distance (s) is
maintained