GR30/GM30/GR50, Safety Directions
13
Lightning
Protection Systems
Leica Geosystems recommends installing a Lightning Protection System (LPS) at
continuously operating reference stations.
An LPS consists of an external and an internal system.
External system
Internal system
Example: External system installation on a building
Component Example Purpose
Air termination system Lightning rods Interception of direct strikes
Down-conductor system
Bonding network
- Conduction of lightning current
safely towards earth
Earth-termination system Grounding Dispersion of the current into the
earth
Component Purpose
Equipotential Bonding Bar (EBB) Equipotentialisation between all electric
conducting parts and the protective earth
conductor
Metal partition panel
Suitable cable routing
No crossed cables coming from
different LPZ’s
Attenuate transient and magnetic induced
fields
Surge Protective Device (SPD) Equipotential bonding for all metal compo-
nents and utility lines entering the building or
structure
Examples for utility lines:
Communication lines, antenna cables
Magnetic shields Attenuation of the inducing magnetic field
Suitable routing of wiring Reduction of the induction loop
a) GNSS antenna
b) Air termination
c) Down conductors
d) Solar panles
e) Bonding network
f) Earth termination
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a
b
c
d
e
f
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