Grounding and lightning protection Chapter 2 Planning considerations
phn-1115_006v000
2-18
Sep 2010
• In high lightning prone geographical areas, additional ground kits should be
installed at spacing between 15 to 22 m (50 to 75 ft
). This is especially important
on towers taller than 45 m (150 ft).
Schematic examples of mast or tower installations are shown in Figure 2-3.
Figure 2-3 Grounding and lightning protection on mast or tower
Tower Ground Bar
(TGB)
External Ground Bar (EGB)
PIDU Plus
Lightning Protection Unit
(LPU)
Master Ground Bar (MGB)
Ground cable
Ground ring
Outdoor CAT5e cable: gel-filled,
shielded with copper-plated steel
ODU
First point of contact with tower
Mid-point of tower
Bottom of tower
CAT5e cable: foil or braid screened,
with screened connectors
To network
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