cm
concrete cover routed or
made stainless steel
316, material no.g.
1.4571/1.4404
Material 316, material no.5 length
Unreinforced foundations/
foundations made of
fibrated concrete/ rolled
concrete
yes no
Material with least cm
concrete cover
yes
yes
Ring earth electrodes out-
side the floor plate/insula-
tion
Grid width
≤ m
Ring earth electrodes out-
side the floor plate/insula-
tion
Grid width
≤ m
Foundation earth elec-
trodes all individual
foundations into closed
ring
Grid width
≤ m
≤ m
Foundation earth elec-
trodes
Grid width of
≤ m
Foundation earth elec-
trodes
Grid width of
≤ m
Material 316, material no.4404
Functional equipotential bonding cable within the floor
plate, grid width and connection the
reinforcement every m
A connection the foundation earth electrodes with the
reinforcement every m
One connection between the ring earther and functional
equipotential bonding cable lightning protection sys-
tems least every least one connection per
conductor
Connection parts for connection the main earthing rail,
down-conductors lightning protection system, con-
nection straps should have length least 1. cm
concrete cover routed or
made stainless steel
316, material no.g.5 be-
fore their entrance into the appropriate room.4571/1. Connection
straps must marked clearly.
Measurement and documentation
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
158
Chapter The external lightning protection system
.Start planning
Increased earth transition
resistance exists, e.4404
Material with min.4404
Material 316, material no.
1. through
"black
trough", "white trough", fully
surrounding perimeter
insulation?
no Individual foundations e.
1.4404
Material with min.4571/1.
1.
1.
for structural supports
present?
no
Reinforced foundations
present?
no
yes yes
Lightning protection
measures required?
Equip each foundation with
a foundation earth elec-
trode 2.4571/1.4571/1
