50 m
long air-termination rod. PVC pipes) with a
height greater than 0.
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.3 m
• Non-conductive materials (e. The chimney our example has
a diameter and therefore requires 1.g.TBS
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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. The ends the ridge conductor should
protrude and curve upwards 0.
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
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2020/01/10
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2020/01/10
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95
Chapter The external lightning protection system
.15 This also pro-
tects any projecting canopies. Always observe the protective
angle. Dormer windows are given their own ridge con-
ductor
