15
Installation
Installation of Lightning Protectors
Overview
A lightning protector is a device to be installed on a CO line to prevent a dangerous surge from
entering the building and damaging equipment. A dangerous surge can occur if a telephone line
comes in contact with a power line. Trouble due to lightning surges have been showing a steady
increase with the development of electronic equipment. In many countries, there are regulations
requiring the installation of a lightning protector. A lightning strike to a telephone cable which is
10 m (33 feet) above ground can be as high as 200,000 volts. This system should be installed
with lightning protectors. In addition, grounding (connection to earth ground) is very important
for the protection of the system.
Recommended lightning protector
• Panasonic KX-A207
CO CO CO
EXTN
EXTN
Frame
Ground
EXTN
SLT PT
Ground
Terminal
Board
Main Unit
Ground Connector
Lightning
Protectors
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