This method will only standardised from Edition 3
of IEC 62305-3 finds sufficient approval.Building height (h) m
Mesh method and protection against lateral impact
Expansion piece
Terminal
Lightning protection mesh with expansion piece
Protection against lateral impact
From building height and the risk serious
damage (e.g.
When the lateral impact method used, the position-
ing the air-termination unit sufficient when all the
parts the element protected are under sur-
face, which created straight line with angle
of 15º the vertical.
Additional protection against lateral impacts under
60 building height according IEC CDV 62305-
3:2018
Lateral impacts under building height can re-
garded insignificant. However, elements protruding
over the building dimensions may risk (e.g.g.
The ring installed 80% the building's overall
height, the loop size depends does the case
of roof installation the lightning protection class,
e. The horizontal width the
protected area limited r/10 Here, the
parameter independent the LPS class. lightning protection class corresponds loop
size m.
Arc the rolling sphere
Centre the rolling sphere
Protected volume due the protection angle (15°)
Height the mounted air-termination rod m
W R/10
Additional protection against lateral impacts
TBS
Blitzschutz-Leitfaden
2018
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2020/01/10
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Chapter The external lightning protection system
.). with electrical electronic devices) is
advisable install ring circuit protect against lat-
eral impact. bal-
conies, cameras, antennas, etc. Until then,
it should only regarded informative
