h: Building height
Protective angle α
Air termination systems and arrest down conductor sys-
tem
4th step: Completing the air-termination system
Take the air-termination system down the conductor
equipment.50 m
long air-termination rod.
The following roof structures must protected with
air-termination systems against direct lightning strikes:
• Metallic materials higher than 0.5 m
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
95
Chapter The external lightning protection system
. Always observe the protective
angle.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
h1
: building height
h2
: air-termination rod height
Protective angle α
Protective angle method for air termination rods
3rd step: Building sections outside the protective
angle
Building parts outside the protective angle require
additional protection.3 m
• Non-conductive materials (e.15 This also pro-
tects any projecting canopies. PVC pipes) with a
height greater than 0. The ends the ridge conductor should
protrude and curve upwards 0.g. Dormer windows are given their own ridge con-
ductor. The chimney our example has
a diameter and therefore requires 1
