Traffic control equipment - Warning and safety light devices

This European Standard specifies the requirements for individual electrically operated light devices, called warning lights, emitting a continuous or regular intermittent light of a single colour which, by their colour and position alone, are used to warn, inform or guide road users. It specifies the requirements for visual, structural and operational performances and the relevant test methods to be used. These devices rely upon existing furniture to provide the mounting.
This European Standard is not applicable to lighting devices which convey messages by additional means (e.g. variable message signs) or which convey a mandatory instruction (e.g. traffic signals) or which are covered by vehicle lighting regulations.
This European Standard does not consider horizontal loads because it is the mounting to which they are fixed, which is not covered by this European Standard, which has to resist applied horizontal loads.

Anlagen zur Verkehrssteuerung - Warn- und Sicherheitsleuchten

Dieses Dokument legt die Anforderungen an einzelne elektrisch betriebene Leuchtvorrichtungen fest, so genannte Warnleuchten, die ein dauerndes oder regelmäßig intermittierendes Licht einer einzelnen Farbe ausstrahlen und die allein durch ihre Farbe und ihre Position zur Warnung, Information oder Leitung von Verkehrsteilnehmern verwendet werden. Es legt die Anforderungen an die optische Leistung, die bautechnische Ausführung und die Betriebskennwerte sowie die entsprechenden anzuwendenden Prüfverfahren fest. Diese Leuchten sind zur Befestigung an vorhandenen Vorrichtungen vorgesehen.
Dieses Dokument ist nicht anwendbar für Leuchtvorrichtungen, die durch zusätzliche Mittel Nachrichten (z. B. Wechselverkehrszeichen) oder eine verbindliche Anweisung (z. B. Verkehrszeichen) übermitteln oder die Bestimmungen über Fahrzeugscheinwerfer unterliegen.
Dieses Dokument behandelt keine horizontalen Lasten, da die Befestigungen, die die horizontalen Lasten aufnehmen, nicht Gegenstand dieses Dokuments sind.

Equipement de régulation du trafic - Feux de balisage et d'alerte

Le présent document spécifie les exigences relatives aux appareils lumineux électriques individuels (appelés feux d'alerte) émettant une lumière continue ou intermittente régulière monochrome qui, en raison de leur couleur et de leur emplacement, sont utilisés pour avertir, informer ou guider les usagers de la route. Elle spécifie également les exigences en matière de performances visuelles, structurelles et  opérationnelles, ainsi que les méthodes d'essai correspondantes à utiliser. Pour le montage, ces appareils reposent sur les équipements fixes existants.
Le présent document ne s'applique pas aux appareils lumineux qui transmettent des messages par des moyens supplémentaires (ex : panneaux à message variable), qui délivrent des instructions obligatoires (ex : feux de circulation) ou qui sont soumis à la réglementation en matière d'éclairage automobile.
Le présent document ne prend pas en compte les charges horizontales, car c'est le support sur lequel les appareils sont fixés (lequel n'est pas couvert par le présent document) qui doit résister aux charges horizontales appliquées.

Oprema za nadzor in vodenje cestnega prometa - Opozorilne in varnostne luči

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SIST EN 12352:2006
Oprema za nadzor in vodenje cestnega prometa - Opozorilne in varnostne luči
Traffic control equipment - Warning and safety light devices
Anlagen zur Verkehrssteuerung - Warn- und Sicherheitsleuchten
Equipement de régulation du traffic - Feux de balisage et d'alerte
Ta slovenski standard je istoveten z: EN 12352:2024
93.080.30 Cestna oprema in pomožne Road equipment and
naprave installations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 12352
June 2024
ICS 93.080.30 Supersedes EN 12352:2006
English Version
Traffic control equipment - Warning and safety light
Equipement de régulation du trafic - Feux de balisage Anlagen zur Verkehrssteuerung - Warn- und
et d'alerte Sicherheitsleuchten
This European Standard was approved by CEN on 29 April 2024.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.


CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12352:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Requirements . 10
4.1 Photometric and colorimetric performance . 10
4.1.1 Luminous intensity. 10
4.1.2 Light emitting surface . 11
4.1.3 Uniformity of luminance . 11
4.1.4 Colorimetric performance . 12
4.1.5 Retro-reflective devices . 12
4.2 Electrical and functional requirements . 13
4.2.1 Electrical requirements . 13
4.2.2 Continuity of emitted light and on-time . 14
4.2.3 Electromagnetic compatibility EMC . 15
4.3 Construction . 15
4.3.1 Performance under impact (Mechanical strength) . 15
4.3.2 Weather resistance . 16
4.3.3 Secure fastening and locking . 16
4.3.4 Passive safety . 17
4.3.5 Dangerous substances. 17
5 Test methods . 17
5.1 General. 17
5.2 Luminous intensity. 17
5.3 Uniformity of luminance . 19
5.3.1 Testing Conditions . 19
5.3.2 Testing Warning Lights classes L2 to L5 . 19
5.3.3 Testing Warning Lights classes L6 to L9 . 19
5.4 Colour of the light of the warning light . 19
5.5 On/Off and variable intensity photosensitive switches . 21
5.5.1 General. 21
5.5.2 Natural ambient light test . 22
5.5.3 Uni-directional artificial light test . 23
5.6 Mechanical strength . 23
5.6.1 Impact test A . 23
5.6.2 Impact test B . 25
5.6.3 Impact test C . 26
5.7 Flash rate and on-time . 26
5.8 Durability of markings and labels . 26
6 Assessment and verification of constancy of performance – AVCP . 26
6.1 General. 26
6.2 Type testing . 27
6.2.1 General. 27
6.2.2 Test samples, testing and compliance criteria . 27
6.2.3 Test reports . 28
6.2.4 Shared other party results . 28
6.2.5 Cascading determination of the product type results . 29
6.3 Factory production control (FPC) . 30
6.3.1 General . 30
6.3.2 Requirements . 30
6.3.3 Product specific requirements . 32
6.3.4 Initial inspection of factory and of FPC . 33
6.3.5 Continuous surveillance of FPC . 33
6.3.6 Procedure for modifications . 34
6.3.7 One-off products, pre-production products (e.g. prototypes) and products produced
in very low quantity . 34
7 Designation . 35
8 Marking, labelling and product information . 35
8.1 Marking and labelling . 35
8.2 Product information . 36
Bibliography . 37

European foreword
This document (EN 12352:2024) has been prepared by Technical Committee CEN/TC 226 “Road
equipment”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2024, and conflicting national standards
shall be withdrawn at the latest by March 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 12352:2006.
The main changes in this revision are as follows:
— The Introduction has been re written to clarify applications of warning lights.
— Definitions 3.1 to 3.4 added for additional clarity.
— Previous definition 3.10 “Principle Axis” removed, and “reference axis” definition updated, adding
clarity with fewer axes defined.
— 4.1.1. Descriptive note changed to improve clarity.
— and Reference to Lens changed to light emitting surface (allowing flexibility for those
solutions created without the use of a specific lens).
— 4.1.4. Wording changed to add flexibility in the types of light sources.
— 4.1.5. Clarified wording about plane of measurement.
— Requirements for electrical safety clarified as being EN 50556 specification for the traffic
market now nominated under the LVD.
— The idea of linked pairs or groups of warning lights added.
— Classes added.
— Clarified that it is the luminous intensity that is expected to be compliant over the voltage
— The idea of linked pairs or groups of warning lights added, classes F5 and F6 added.
— Classes O4 and O5 added.
— 4.3.1. References to test method sections updated (due to the removal of the old Clause 5 “Samples”
the test method Clause 6 became 5).
— Corrosion test specification reference updated.
— Old Clause 5 “Sampling” removed.
— Clause 6 “Test Methods” has now become Clause 5 with the removal of the old Clause 5 “Sampling”.
— 5.2. Luminous Intensity test method redefined.
— Clause

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