g. The
surge protection devices are earthed via the DIN rail.
Suggested protection for terminal device.
The following figures show how the OBO Net Defend-
er can used protect network infrastructure and
terminal devices:
Suggested protection for switch with patch panel.The connection the primary cabling with the build-
ing distributor and the connections from building dis-
tributor the floor distributor only need protec-
ted where copper cables are used. keep the
protection level low, the surge protection device uses
the protective conductor the case the con-
nection. These metal ele-
ments must connected the equipotential bond-
ing such way able withstand lightning
current. These can couple lightning currents
and surge voltages into the building. exception is
fibre optic cables incorporating metallic elements, e.
rodent guards.
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
254
Chapter The internal lightning protection system
