Surge Protection for
Railway Applications
Electric trains
Medium-voltage networks
Level crossings
Railway stations and their signalling
BE ON THE SAFE SIDE
Surge Protection for railway stations and
signalling/security systems
Surge protection for power
supply networks
EMI and overvoltage protection
for electronic devices
As every important structure, the railway stations need to be
adequately protected. The most important equipment to
protect are security systems and computer networks.
Overvoltage protection for
data lines
Surge protection for level crossing and
railway electrification systems
Surge protection for
traction vehicles
Surge protection for medium-voltage networks and electric
trains
Railway applications use AC or DC power supply networks for
electric trains and other railway vehicles. The surge
protection has to be installed on the railway network power
supply line and every railway vehicle.
Lightning overvoltage: direct strike to mast, wires & track,
induced voltages due to indirect strikes.
Switching & other surges: pantograph arcing, breaker
operations, feeder cable arcing fault, induced switching
surges, short circuit, insulation flashovers, TOV.
Surge protection for
power supply networks
in traction systems
Overvoltage protection
for data lines
Surge protection for
power supply networks
Overvoltage protection
for telecommunication
lines
Level crossings
Equipotential bonding
protection
At level crossings, the surge protection is obligatory. Unless
the power supply, signal and telecommunication parts are
protected, the overvoltages can destroy the equipment.
Overvoltage protection has to be installed on every incoming
line.
Surge protection for railway stations and signalling/security systems
SAFEBLOC BR 100/275 (3+1)
Category IEC / EN / VDE:
Location of use:
Protection modes :
Safety:
Iimp ( 10/350) per pole:
Complies with:
Class I, Type 1 / B
Main distribution board
L - N, N - PE
Immunity against TOV
25kA
IEC-61643-1, EN-61643-11,
PrEN 50539-11,
UTE C 61-740-51
PROFILT D 8A
Category IEC / EN / VDE:
Location of use:
Protection modes :
Uoc/Isc (1,5/50 , 8/20):
IL:
LZ-NET 6
LAN protector
IEC category / EN type:
Location of use :
Protection:
Frequency:
Uc:
IL:
In (8/20):
Class III, Type 3 / D
As close as possible to
devices
L - N, N - PE
6kV/3kA
8A
C1 / C2 / C3 (IEC 60643-21)
As close as possible to a
protected devices
All 4 pairs protected
< 100MHz, Cat 6 Capable
48VDC
1A
10kA (lines- PG)
Surge protection for level crossings and railway electrification systems
SAFETEC CR 160/275 (3+1)
Category IEC / EN / VDE: Class II, Type 2 / C
Location of use:
Sub-distribution board
Protection modes:
L - N, N - PE
Safety:
Immunity against TOV
Imax (8/20) per pole:
40kA
Complies with:
IEC-61643-1, EN-61643-11,
PrEN 50539-11,
UTE C 61-740-51,
UL 1449 Third Edition
SMH-RC 24V
Single-pair Data SPD for shielded cables
IEC category / EN type:
C1 / C2 / C3 (IEC 60643-21)
Location of use:
As close as possible to devices
Protection:
Longitudinal, transverse
Uc:
28VDC
IL:
1A
In (8/20):
10kA
LPA 02 K1 + LSA strip
Location of use :
Protection:
Uc:
IL:
In (8/20):
As close as possible to devices
Longitudinal, transverse
180VDC
300mA
5kA
MSAIZ-RT 3DC
Location of use:
Protection:
Protective elements:
Nominal voltage Un:
Traction vehicles
Railroad installation
MOV
3kVDC
MSAIZ-RN 3DC
Location of use:
Protection:
Protective elements:
Nominal voltage Un:
Power supply networks in traction
systems
Railroad installation
MOV
3kVDC
EPZ 100/350
Location of use:
Exposed environments or direct burial
Protective elements:
GDT
Imax (8/20):
100kA
DC sparkover voltage (100V/s):
350V
Published by: ISKRA ZAŠČITE, d.o.o. / March 2012 / Design: Dacar /
ISKRA ZAŠČITE d.o.o., Surge Voltage Protection Systems,
Engineering and Cooperation
Stegne 35, 1521 Ljubljana, Slovenia, EU
P: 00386(1)5003 100; F: 00386(1)5003 236
E: sales@iskrazascite.si;
www. iskrazascite.si
We reserve the right to introduce changes in performance, dimensions and materials in the course of technical progress.
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This publication replaces the previous edition