Dahua D-SD6AL445XA-HNR - Page 13

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Figure 2-2 Installing lightning protection devices outdoors
Table 2-2 Installing lightning protection devices outdoors
No.
Description
1
Video lightning conductor.
2
Communication lightning conductor.
3
Power supply lighting conductor.
4
Impedance of the cable connected to the grounding wire should be less
than 4Ω.
5
The radius is 60 m.
6
Lightning conductor.
7
Steel tube.