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63
Chapter The external lightning protection system
.1.
If the roof structure has conductive continuation into
the building (e.
All roof structures must protected with air-termina-
tion rods.1. Here necessary observe the relevant
separation distance (“s”) between earthed roof struc-
tures and metal systems. The protective angle method
is well suited determining the positions air-termin-
ation rods providing merely additional protection for a
small number protruding building parts struc-
tures.
This method should therefore only used where the
building already protected with air-termination rods
whose positions were determined using the rolling
sphere grid method. This distance safely prevents arcing the
lightning current and dangerous spark creation.
Using the protective angle method
is only advisable simple small
buildings and for parts build-
ings.2 Protective angle method
Using the protective angle method only advisable in
simple small buildings and for individual sections of
buildings.TBS
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Protective angle
Separation distance
Protective angle and separation distance air-termination rods photovoltaic system
2. with stainless steel pipe with a
connection the ventilation air-conditioning sys-
tem), then the air-termination rod must erected a
separation distance (s) from the object pro-
tected.g
