All cable
glands must also shielded. sheet steels or
copper foils).
This done covering all walls, the ceiling and the
floor with conductive materials (e.g.3 Building and area shielding
Critical infrastructures such data centres, power
stations, chemical plants and electricity and water
supply systems can protected from the effects of
electromagnetic waves creating shielded areas.3.
Charge transferred through the medium between
the two points attempt even out the potentials;
this creates surge voltage. Doors and windows must connected
with the wall shielding via spring contacts.1.
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
224
Chapter The internal lightning protection system
.External lightning protection
system
Earthing system
Main earthing busbar
Transmitter
Capacitive coupling
Data cable
Capacitive coupling due direct lightning strike
"Capacitive coupling"
Capacitive coupling occurs where there voltage
between two points with high difference potential.
3
