Types Of Mast Configurations; Cantilevered; Guyed; Freestanding - Lightning Protection International Stormaster ESE 15 Installation Manual

∆
Have an FRP mast section of at least 2 metres below the air terminal if
using LPI HVSC Plus
∆
Be suitable for local weather conditions. Seek guidance from a local civil
engineer
∆
Be guyed and securely attached to the dedicated mounting points (if
required)

Types of Mast Configurations

When mounting a Stormaster ESE terminal, there are generally three
types of mast configurations that can be used.

Cantilevered

Typically used for mounting to a tower or the side wall of a
plant room when a mast and base are not suitable. See
drawings on pages 9, 10 and 12 Figure 33.
∆
1/3 of the overall mast height must be fixed to the structure
for adequate mechanical strength
∆
Cantilevered masts can be guyed for additional strength. If
guying, the use of a guy ring and/or the eyelets provided on
the inline coupling can be utilized

Guyed

When mounting a Stormaster ESE terminal, a typical guyed configuration
would involve the following. See drawing on pages 8 and 11 Figure 34.
∆
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 Stormaster 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 Stormaster ESE
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
www.lpi.com.au
LIGHTNING PROTECTION INTERNATIONAL PTY LTD
Figure 33.
Cantilevered Mast
Figure 34. Guyed Mast
37