Guying - Lightning Protection International GUARDIAN PLUS Installation Manual

Mast Couplings and Guying Points
There are two methods of coupling two sections of mast:
(i) The U-Bolt set uses two stainless steel U-Bolts to clamp the two masts together (Figure 32).
(ii) The inline coupling fixes the upper and lower mast sections together and provides guying
points and an exit point for the HVSC Plus downconductor.
U-Bolts and inline couplings nuts must be tightened to no more than 55 kg/cm (45 in/lb).
A guying ring is supplied for guy points for any two piece masts that require double guying. This
fits on the mast butt adaptor between the Guardian Plus terminal and the top of the mast. See
Figure 33.

Guying

LPI offers a standard 4 m (LPI GUYKIT-4M) and 7 m (GUYKIT-7M) guy kit made up of light
weight synthetic, non-conductive cable. They are designed to be installed with the use of a
guy ring at the top section of the FRP mast, as illustrated in Figure 37. When guying from the
LPI inline coupling, the use of stainless steel guy wire kits (GUYKIT-4M-SS, GUYKIT-7M-SS) is
recommended.
Important Recommendations:
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The guying angle must be no greater than 60° from horizontal
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The inline coupling couples the upper and lower mast sections and provides guying points
and an exit point for the HVSC Plus downconductor
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Minimum of 3 guying grips per guy end
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Guying grips spaced at a minimum of 25 mm
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Grips are correctly orientated. Saddle on the longer length side of the guy and U-bolt over
the tail side of the guy
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Tighten grips to no more than 60 cN.m (5 Ibf.in) of torque
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Protect guying from abrasion
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Customised guy kits can be supplied upon request
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LIGHTNING PROTECTION INTERNATIONAL PTY LTD
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