With these components able to
perform the functions required it, namely intercept-
ing direct lightning strikes, discharging the lightning
current earth and distributing the ground.TBS
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2. The external lightning protection
system
The external lightning protection system consists of
air-termination systems, down-conductors and the
earthing system.1 Air-termination systems
Air termination systems are the part the lightning
protection system that protect the building structure
from direct lightning strikes.
2.
Air-termination systems can comprised any com-
bination the following components:
• Air-termination rods (including free-standing rods)
• Catenary wires
• Meshed conductors
Air-termination system
Down-conductor
Earthing system
Components external lightning protection system
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57
Chapter The external lightning protection system
