Panasonic KX-TD308 Installation Manual page 40

2.3.2 Outside Line Connection
Installation of an Earth Rod
Grounding Wire
Note
Lightning
Protectors
CO
(Underground)
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
5) Size of the grounding wire............................Thickness is more
• The above figures are recommendations only.
• The length of earth rod and the required depth depend on the
composition of the soil.
System
Rod
(20 inches)
than 16 AWG
Installation 2-11