2.TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
2.22: Distances between down-conductors for dif-
ferent lightning protection classes
A measuring point must cre-
ated the point where each down
conductor meets the earthing sys-
tem.1 Number and arrangement
The conductors should preferably installed near
the corners the building. enable easy identification,
the measuring points should be
marked, for example with num-
bers.2.
2.1. order achieve optim-
um splitting the lightning current, the conductors
must evenly distributed around the outer walls of
the building. This means that possible run
the conductors behind heat insulation composite sys-
tems and fire locks, for example.
The reduction the lightning current results smal-
ler temperature rise the metallic elements there is
a lightning strike.1 Planning methods
The down-conductors connect the air-termination sys-
tem with the earthing system via short, direct con-
nection. Distance (a) between the down-conductors
Lightning protection class
Distance between the
down-conductors
I m
II m
III m
IV m
Table 2.
Measuring point the point entry into the earth
TBS
Blitzschutz-Leitfaden
2018
/
en
/
2020/01/10
14:42:40
14:42:40
(LLExport_02613)
/
2020/01/10
14:42:54
14:42:54
97
Chapter The external lightning protection system
