Mast Bases - Lightning Protection International Guardian System 5 Installation Manual

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Guyed
When mounting a Guardian CAT terminal, a typical guyed
configuration would involve the following. See drawing
CTA-04 and Figure 37.
• Two sections of mast (Aluminium mast & FRP mast)
coupled together with an inline coupling. Securing of
guy wires is completed at the eyelets as provided on
the inline coupling.
• Alternatively or in addition, a guy ring can be
supplied which is installed at the neck of the mast
in between the Guardian CAT terminal and the top
section of the FRP. The guy ring provides eyelets for
connection of the guy wires.
Freestanding
A freestanding mast configuration is typically used in
situations where protection by isolation is required. For
example a Guardian CAT terminal is installed 5 metres or
more away from a fuel storage tank.
Prior to installing the freestanding mast, ensure that:
• A spigot has been supplied with the freestanding
mast which allows for external or internal mounting
of the FRP mast.
• The downconductor can exit through the base of the
freestanding mast if run internally.
• Adequate information is provided for mast
foundation requirements.

Mast Bases

LPI supplies a mast base welded directly onto the
required length of aluminium mast.
36
Guardian Install Manual V12.indd 38
Figure 37.
Guyed Mast
Figure 38.
Freestanding
Mast
Document 36 II Guardian
Version 1.02
© Copyright 2008 LPI
22/9/08 4:25:26 PM

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