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0.5 m 1 m 1.5 m 2 m
1 m 3 m 3 m 3 m
U E
reference earth
Figure 5.7.2 Potential control – Basic principle and curve of the potential gradient area
clamping points
e.g. existing foundation (reiforced concrete)
connection to
1m 3m 3m 3m 3m 3m 3m 1m
mast mast
Figure 5.7.3 Possible potential Figure 5.7.4 Potential control for a floodlight or mobile phone Figure 5.7.5 Connection control at the ring /
control in the mast foundation earth electrode
entrance area of
a structure
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