2.3.10 Installation Of Lightning Protectors - Panasonic KX-TD816 Installation Manual

2.3.10 Installation of Lightning Protectors
Installation of an Earth Rod
Lightning
Protector
,?!
I:.
co
---l
Grounding
Wire
i-
7f
(Underground)
r
1
Main
Unit
1
Earth Rod
1) Installation location of the earth rod . . . . . . . . . . . . . Near the protector
2) Check obstructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . None
3) Composition of the earth rod . . . . . . . . . . . . . . . . . . . . . . . . Metal
4) Depth of the earth rod . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . More than 50 cm
(20 inches)
5) Size of the grounding wire . . . . . . . . . . . . . . . . . . . .
. . . . . . . .
Thickness is more
than 16 AWG
Notes
l
The above figures are recommendations only.
l
The length of earth rod and the required depth depend on the
composition of the soil.
2-34 Installation