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Angled supports are a practical so-
lution when air- termination rods
also have to be protected against
the effects of side winds (Figures
5.1.8.4 and 5.1.8.5).
direct connection If higher air-termination rods
roof
are required, e.g. for larger roof-
mounted structures where noth-
ing can be fixed, these air-termi-
nation rods can be provided with
1st floor
special stands.
Self-supporting air-termination rods
ground floor up to a height of 14 m can be in-
data lines stalled using a tripod. These stands
are fixed on the floor by means of
standard concrete bases (stacked
on top of each other). Additional
supports are required for a free
basement height of 6 m and more in order to
MEB withstand the wind loads.
CPU
PP These self-supporting air-termi-
nation rods can be used for a
wide range of applications (e.g.
antennas, PV systems). Their
Figure 5.1.8.1 Risk posed by directly connected roof-mounted structures advantage is the short instal-
lation time since no holes must
be drilled and only few elements
Air-termination rods with a height between 2.5 m and 3.0 m need to be screwed together (Figures 5.1.8.6 and 5.1.8.7).
must be fixed at the object to be protected by means of
spacers made of electrically insulating material (e.g. DEHNiso Lightning protection masts are used to protect complete build-
spacer) (Figure 5.1.8.3). ings or installations (e.g. free field PV systems, ammunition

Figure 5.1.8.2 Isolated air-termination system – Protection by an Figure 5.1.8.3 Air-termination rod with spacer
air-termination rod

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