2.2.14 Surge Protector Installation - Panasonic KX-TDA100 Installation Manual

2.2 Installation of the Hybrid IP-PBX

2.2.14 Surge Protector Installation

Overview
A massive electrical surge can be caused if lightning strikes a telephone cable 10 m above ground, or if a
telephone line comes into contact with a power line. A surge protector is a device that is connected to a trunk
to prevent potentially dangerous electrical surges from entering the building via the trunk and damaging the
Hybrid IP-PBX and connected equipment.
To protect the system from electrical surges, we strongly recommend connecting the system to a surge
protector that meets the following specifications:
– Surge arrestor type: 3-electrode arrestor
– DC spark-over voltage: 230 V
– Maximum peak current: at least 10 kA
Additionally, proper earthing is very important for the protection of the system (refer to "2.2.5 Frame Earth
Connection").
Many countries/areas have regulations requiring surge protection. Be sure to comply with all applicable
laws, regulations, and guidelines.
Installation
Trunk
Surge
Protector
Earth
68 Installation Manual
Trunk
Terminal
Board
Extn. Extn.
SLT PT CS
Trunk
Extn.
Hybrid
IP-PBX
Frame
Earth
Extn.: Extension line