SIST EN 50293:2012

SLOVENSKI STANDARD
SIST EN 50293:2012
01-september-2012
1DGRPHãþD
SIST EN 50293:2002
Sistemi prometne signalizacije - Elektromagnetna združljivost
Road traffic signal systems - Electromagnetic compatibility
Straßenverkehrs-Signalanlagen - Elektromagnetische Verträglichkeit
Systèmes de signaux de circulation routière - Compatibilité électromagnétique
Ta slovenski standard je istoveten z: EN 50293:2012
ICS:
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
93.080.30 Cestna oprema in pomožne Road equipment and
naprave installations
SIST EN 50293:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 50293:2012

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SIST EN 50293:2012

EUROPEAN STANDARD
EN 50293

NORME EUROPÉENNE
June 2012
EUROPÄISCHE NORM

ICS 33.100.01; 93.080.30 Supersedes EN 50293:2000


English version


Road traffic signal systems -
Electromagnetic compatibility



Systèmes de signaux de circulation Straßenverkehrs-Signalanlagen -
routière - Elektromagnetische Verträglichkeit
Compatibilité électromagnétique






This European Standard was approved by CENELEC on 2012-05-11. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50293:2012 E

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SIST EN 50293:2012
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Contents

Foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Common test conditions . 5
5 Test configuration . 5
5.1 Equipment. 5
5.2 Supplier . 6
5.3 Technical documentation . 6
5.4 Standard load . 6
5.5 Cycle rate . 6
5.6 Test set up . 6
6 Performance criteria . 7
7 Emission . 7
7.1 Objective . 7
7.2 Conditions during testing . 7
7.3 Applicability . 7
7.4 Emission limits . 8
8 Immunity . 11
8.1 Objective . 11
8.2 Conditions during testing . 11
8.3 Applicability . 11
8.4 Immunity test requirements . 11
Figures
Figure 1 – Example of ports . 5
Tables
Table 1 – Emissions – Enclosure port . 9
Table 2 – Emissions – Input AC mains ports (1 of 2) . 9
Table 2 – Emissions– Input AC mains ports (2 of 2) . 10
Table 3 – Emissions – Telecommunication terminals . 10
Table 4 – Immunity – Enclosure port . 12
Table 5 – Immunity – Ports for signal and control lines . 12
Table 6 – Immunity – Ports for DC power ports . 13
Table 7 – Immunity – Input and output AC power ports . 13

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SIST EN 50293:2012
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Foreword
This document (EN 50293:2012) has been prepared by CLC/BTTF 69-3 (TC 214 WG1) "Road traffic signal
systems".
The following dates are fixed:

(dop) 2013-05-11
• latest date by which this document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-05-11
• latest date by which the national
standards conflicting with this
document have to be withdrawn

This document supersedes EN 50293:2000.
EN 50293:2012 includes the following significant technical changes with respect to EN 50293:2000:
- adaption to the actual EMC-Standard;
- update of the normative-references;
- editorial revision.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.

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1 Scope
This product standard for EMC requirements applies to road traffic signal systems. The range of products
included within the scope of this European Standard are road traffic signal systems and devices including
for example signal heads, signalling devices and traffic signs, controller and housing, supports,
interconnections, traffic detectors, monitoring equipment, electrical supply. Road traffic signal systems
operating in conjunction with other systems e.g. public lighting, railway systems should also comply with
the respective standard and should not reduce the safety of all the equipment. Central Office equipment is
excluded from this standard. Items with a radio-communication function should also refer to the European
ETSI standards.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 12368, Traffic control equipment – Signal heads
EN 12675, Traffic signal controllers – Functional safety requirements
EN 50556:2011, Road traffic signal systems
EN 55014-1, Electromagnetic compatibility – Requirements for household appliances, electric tools and
similar apparatus – Part 1: Emission (CISPR 14-1)
EN 55022, Information technology equipment – Radio disturbance characteristics – Limits and methods of
measurement (CISPR 22)
EN 61000-3-2, Electromagnetic compatibility (EMC) – Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per phase) (IEC 61000-3-2)
EN 61000-3-3, Electromagnetic compatibility (EMC) – Part 3-3: Limits – Limitation of voltage changes,
voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current
≤ 16 A per phase and not subject to conditional connection (IEC 61000-3-3)
EN 61000-4-2, Electromagnetic compatibility (EMC) – Part 4-2: Testing and measurement techniques –
Electrostatic discharge immunity test (IEC 61000-4-2)
EN 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement techniques –
Radiated, radio frequency electromagnetic field immunity test (IEC 61000-4-3)
EN 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques –
Electrical fast transient/burst immunity test (IEC 61000-4-4)
EN 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques –
Surge immunity test (IEC 61000-4-5)
EN 61000-4-6, Electromagnetic compatibility (EMC) – Part 4-6: Testing and measurement techniques –
Immunity to conducted disturbances, induced by radio-frequency fields (IEC 61000-4-6)
EN 61000-4-8, Electromagnetic compatibility (EMC) – Part 4-8: Testing and measurement techniques –
Power frequency magnetic field immunity test (IEC 61000-4-8)
EN 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement techniques –
Voltage dips, short interruptions and voltage variations immunity tests (IEC 61000-4-11)
IEC 60050-161:1990, International electrotechnical vocabulary – Chapter 161: Electromagnetic
compatibility
IEC Guide 107:2009, Electromagnetic compatibility – Guide to the drafting of electromagnetic compatibility
publications

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3 Terms and definitions
For the purposes of this document, the terms and definitions related to EMC and to relevant phenomena
given in the EEC Directive, in IEC 60050-161:1990, in IEC Guide 107:2009 and CISPR Publications apply.
The following particular terms and definitions apply.
3.1
port
particular interface of the specified apparatus with the external electromagnetic environment, including
communication interface (see Figure 1)
3.2
enclosure port
physical boundary of the apparatus through which electromagnetic fields may radiate or impinge
3.3
signal/control port
points at which a conductor or a cable is connected to the apparatus. This includes cables to signal heads,
signalling devices and traffic signs, traffic sensors, detectors and monitoring equipment.
[SOURCE: EN 50556]

Enclosure port
AC power port Earth port
APPARATUS
DC power port
Signal- / control- /
communication port

Figure 1 – Example of ports
4 Common test conditions
In general the EMC testing of equipment requires it to be operated under conditions similar to those which
would be found in practice. Equipment may be tested individually or in a representative system as
described below.
The modes of operation that are likely to cause highest levels of emission and in addition those likely to
give rise to the most susceptible condition shall be selected. The equipment under test will be tested in
such a manner so as to maximise emission and susceptibility levels at the highest operational frequencies.
Equipment having dimmed and undimmed conditions of operation shall be tested in that condition which
produces the higher emission level.
For traffic controllers, tests shall be carried out in a system configuration as described in 5.6 with standard
loads and standard cycles as defined in 5.4 and 5.5. The standard loads do not need to be installed in the
test chamber.
Details of the test configuration and the length of the interconnecting cables used shall be included in the
test report.
5 Test configuration
5.1 Equipment
The equipment shall be a standard production version.

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5.2 Supplier
The supplier shall specify the functions of the equipment.
5.3 Technical documentation
The equipment shall be accompanied by the necessary technical documentation.
This documentation shall at least define modes of operation, the configuration details for the test, the
technical specification and installation details sufficient to repeat the test.
5.4 Standard load
For controller or system tests the controller shall be set for two signal group operations.
One signal group shall be connected to the maximum load and the other to the minimum load. These loads
shall be either the standard signal heads together with their associated control gear or an electrical
equivalent load.
5.5 Cycle rate
The cycle rate for vehicle controller shall be adjusted such that a minimum of three switching o
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