Cisco CX-FEIP-1TX= Installation and con?guration Guida Utente Pagina 126

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Grounding and lightning protection Chapter 2: Planning considerations
2-14
phn-2513_004v000 (Oct 2012)
The main roof perimeter lightning protection ring contains at least two down
conductors connected to the grounding electrode system. The down conductors are
physically separated from one another, as far as practical.
Figure 45 Grounding and lightning protection on building
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