Furuno WR110, Installation Manual

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A.4. Modification Plan
As shown in Table A.
6
the current condition is not enough to protect the weather radar. It would
propose the following modification plan to protect the weather radar.
A.4.1. Extend existing lightning rod
It installed a new lightning rod to protect the radar, but it is insufficient due to some restrictions.
Now it has to consider how to adapt the LPL by extending the lightning rod.
As shown in Table A.8, it needs to extend the rod at least 5.1 m from the current length, but it is not
allowed due to site height restrictions.
LPL Condition Height [m]
I
Too far
from the rod
II 14.6
III 10.6
IV 9.1
14.599 m
10.581 m
9.025 m
Table A.8: Required extension for the existing lightning rod