connection between two different materi-
als that are not recommended joined re-
quired, bi-metal connectors can used.
The following figure shows the use bimetal connect-
ors copper gutter which aluminium round
conductor attached. addition, galvanic element
is created, which accelerates corrosion the contact
surface. suitable coating
must applied corrosion protection connection
points the ground.1 Materials for air-termination and conductor
systems
The following materials are preferred for use extern-
al lightning protection systems: Hot galvanised steel,
rustproof steel, copper and aluminium. Points increased risk cor-
rosion, such insertion points into the concrete or
soil, must corrosion-protected.7. For this reason, copper parts
may installed above galvanised surfaces above
aluminium parts copper particles worn away by
rain other environmental influences can penetrate
the galvanised surface.2.
Corrosion
A risk corrosion occurs especially when joining dif-
ferent material types.
Variable bi-metal quick connector with bi-metal intermedi-
ate plate (copper/aluminium)
TBS
Blitzschutz-Leitfaden
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Chapter The external lightning protection system
