Standard Contents
IEC 61643-21
Low-voltage surge protective devices Part 21: Surge protective devices connected to
telecommunications and signalling networks.
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. Performance requirements and testing method.
Table 3. Here too, the classes cor-
respond the lightning protection zones.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.8: Comparison standards for surge protection
devices
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Chapter The internal lightning protection system
.
DIN 50310 Application equipotential bonding and earthing buildings with information technology equipment.
IEC 61643-22
Low-voltage surge protective devices Part 22: Surge protective devices connected to
telecommunications and signalling networks. 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.
DIN VDE 0845-1
Protection telecommunication systems against lightning, electrostatic discharges and surge
voltages from electric power installations; provisions against surge voltages. Some important standards are listed here.
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.
EN 60728-11
Cable networks for television signals, sound signals and interactive services Part 11: Safety (IEC 60728-
11:2005).
EN 61000-4-5
Electromagnetic Compatibility (EMC) Part 4-5: Testing and measurement techniques Surge immunity test. 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).
Standards data and information technology
Various standards have role the field data and
telecommunications technology
