Vaisala WINDCAP WS425 Guide de l'utilisateur Page 39

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Chapter 4 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 37
1005-001
Figure 12 Recommended Mast Length for WMT700 on Top of
Building
where:
h = Recommended minimum height for the vertical mast.
H = Height of the building.
W = Diagonal of the building.
WARNING
To protect personnel (and the wind sensor), a lightning rod must be
installed with the tip at least one meter above WMT700. The rod must be
properly grounded, compliant with all local applicable safety regulations.
Do not install the wind sensor above the top of the lightning protection
rod.
WARNING
Do not install WMT700 when there is a risk of thunderstorm or lightning
activity in the area.
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