Leica GM30 User Manual page 14

Active Lightning
Protection System
Passive Lightning
Protection System
GR30/GM30/GR50, Safety Directions
Example: External and internal system installation on a pillar
a
b
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Example: Internal system installation in a cabinet
a
b
c
d
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An Active Lightning Protection (ALP) System combines protection with lightning detec-
tion.
Functionality
• Carrying out preventive measures in advance
• Triggering an early streamer of ionised air.
The streamer intercepts lightning discharges for the safe passage to a low
impedance down-conductor.
Leica customers reported successful application using products from:
• Lightning Protection International Pty Ltd (www.lpi.com.au)
A Passive Lightning Protection (PLP) System and an ALP are similar.
The PLP System has no detection (preventive measures) or triggers for an early
streamer.
Leica customers reported successful application using products from:
• Huber and Suhner (www.hubersuhner.com)
• Polyphaser (www.protectiongroup.com)
c
d
a) Air termination
e
b) Foundation
d
c) Antenna cable
f
d) SPDs
g
e) Receiver
f) EBB
h
g) Cabinet
i
h) Ethernet
j
i) Power
j) Grounding system
a) Cabinet
b) Receiver
c) Metal partition panel
e
d) EBB
e) SPDs
f) Meteo
f
g) Antenna cable
g
h) Ethernet
h
i
i) Power/solar panel
j
j) Nivel
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