Installation 2-35
2.4.3 Lightning Protector Installation
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. Troubles 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 above ground can be as high as 200,000 volts.
This system should be installed with lightning protectors. In
addition, connection to earth ground is very important for the
protection of the system.
EXTN
CO
Frame
Earth
COCO
Lightning
Protectors
Main
Distribution
Frame
Main Unit
Earth Terminal
SLT PT
Installation Diagram
EXTNEXTN
Earth
To Next Page
Loading...
