Outside Line Connection - Panasonic KX-TD308 Installation Manual
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Also See for KX-TD308:
- User manual (444 pages) ,
- Installation manual (399 pages) ,
- Summary manual (248 pages)
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2.3.2 Outside Line Connection
Installing Lightning Protectors
Installation
CO
2-10
Installation
A lightning protector is a device to be installed on an outside 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 has 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 protectors
• TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.)
• SPIKE BLOK MODEL SK6-0 (TRIPPE MFG. CO.)
• Super MAX™ (PANAMAX)
• MP1 (ITW LINK)
CO
Lightning
Protectors
EXTN
TEL
Ground
CO
Terminal
EXTN
Board
EXTN
TEL
CO:
Central Office (Outside line)
EXTN: Extension line
TEL:
Telephone
System
Ground
Terminal
Frame Ground
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