
Engineering
28
06/99 AWB 2700-1364 GB
Lightning protection
measures
Exterior lightning protection
C
ables crossing from one building to another should
always be protected by screening
. Metal conduits are the
best solution for this. Elements which protect against
overvoltage, such as varistors or other surge
arresters, should be used for signal cables. Cables
should be protected at the point of entry into the
building, or at the latest at the control cabinet.
Interior lightning protection
Interior lightning protection includes all measures
which reduce the effects of the lightning current and
its electric and magnetic fields on metallic and
electrical installations inside a building. Protection
comprises:
Lightning protection equipotential bonding
Screening
Overvoltage protecting devices.
For further information, please refer to the following
Moeller GmbH manuals:
Electromagnetic compatibility (EMC) of
automation systems (TB 27-001-GB)
Electromagnetic compatibility (EMC) of
machines
and plants (TB 02-022 GB).
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