Chapter 4 _______________________________________________________________ Installation 
 
VAISALA_______________________________________________________________________ 55 
 
  1012-177 
Figure 18  Lightning Rod Installation 
The following numbers refer to Figure 18 above: 
1 = Lightning rod 
2  =  Lightning rod holder, 2 pcs 
3  =  Mounting clamp, 4 pcs 
4  =  Allen bolt M6x40 DIN912 A4, 7 pcs; use Allen key 5 mm 
5  =  Spring washer B6 DIN127 A4, 7 pcs 
6 = Fastening plate 
7 = Grounding cable 
8  =  Isolated guy wire 3 
9 = Cable tie 
 
NOTE 
At this point, it is highly advisable to erect the mast to ensure that the 
installation is secure and the guy wires are firmly attached and of correct 
length. After you have carefully verified the installation, tilt the mast 
again and start installing sensors and accessories (wind sensors, 
GSM/GPRS antenna, and solar panel).