Selection and application principles
DIN 50173-1
Information technology Generic cabling systems Part 1:
General requirements. From structured
building cabling through equipotential bonding to
EMC, various different standards must taken into
account.TBS
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Protection principle
A device only protected against surge voltages all
energy and data cables connected the device are
integrated into the equipotential bonding system the
lightning protection zone transitions (local equipoten-
tial bonding).
Standard Contents
IEC 61643-21
Low-voltage surge protective devices Part 21: Surge protective devices connected to
telecommunications and signalling networks.
IEC 61643-22
Low-voltage surge protective devices Part 22: Surge protective devices connected to
telecommunications and signalling networks.
EN 61000-4-5
Electromagnetic Compatibility (EMC) Part 4-5: Testing and measurement techniques Surge immunity test.
EN 60728-11
Cable networks for television signals, sound signals and interactive services Part 11: Safety (IEC 60728-
11:2005). OBO Bettermann offers complete
range tried-and-tested, highly functional and reliable
data cable protection devices for all standard telecom-
munication and information technology systems. Some important standards are listed here.7: Standards referring surge protection information technology
Comparison
Like the surge protective devices used the field of
energy technology, data cable protection devices are
also categorised class. Here too, the classes cor-
respond the lightning protection zones. Performance requirements and testing method.
Standards data and information technology
Various standards have role the field data and
telecommunications technology.8: Comparison standards for surge protection
devices
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217
Chapter The internal lightning protection system
.
Table 3.
Surge protection
Energy technology
Surge protection
Data cable protection
IEC testing
standard IEC 61643-11 IEC 61643-21
IEC applica-
tion
principles
IEC 61643-12 IEC 61643-22
LPZ 0B/1
(10/350 μs)
Class Class D1
LPZ 1/2
(8/20 μs)
Class Class C2
LPZ 2/3
(8/20 μs)
Class III Class C2/C1
Table 3.
DIN 50310 Application equipotential bonding and earthing buildings with information technology equipment.
DIN VDE 0845-2
Protection data processing and telecommunications equipment against the impact lightning,
discharge static electricity and surge voltages from heavy current systems Requirements
and tests surge voltage protection devices.
DIN VDE 0845-1
Protection telecommunication systems against lightning, electrostatic discharges and surge
voltages from electric power installations; provisions against surge voltages
