SIST EN 12368:2006
(Main)Traffic control equipment - Signal heads
Traffic control equipment - Signal heads
This European Standard only applies to red, yellow and green signal lights for road traffic with 200 mm and 300 mm roundels. It defines the requirements for the visual, structural, environmental performances and testing of signal heads for pedestrian and road traffic use. Portable signal lights are specifically excluded from the scope of this European Standard.
Anlagen zur Verkehrssteuerung - Signalleuchten
Diese Norm gilt nur für rote, gelbe und grüne Signallichter für den Straßenverkehr mit 200 mm und 300 mm
Leuchtfelddurchmesser. Es werden Anforderungen an Sichtbarkeit, Konstruktion, Umweltverträglichkeit sowie
die Prüfverfahren für Signalleuchten für Anlagen im Fußgänger- und Straßenverkehrsbereich festgelegt. Orts-veränderliche
Signallichter sind nicht Gegenstand dieser Europäischen
Equipement de régulation du trafic - Signaux
La présente Norme européenne s'applique seulement aux feux de circulation rouges, jaunes et verts pour la régulation du trafic de diametres nominaux 200 mm et 300 mm. Elle définit les exigences de performance visuelle, structurelle et de tenue a l’environnement et les essais des signaux utilisés pour la circulation des piétons et le trafic routier. Les signaux lumineux mobiles sont expressément exclus du domaine d'application de la présente Norme européenne.
Oprema za nadzor in vodenje cestnega prometa - Signalni dajalci
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Traffic control equipment - Signal headsOprema za nadzor in vodenje cestnega prometa - Signalni dajalciEquipement de régulation du trafic - SignauxAnlagen zur Verkehrssteuerung - SignalleuchtenTa slovenski standard je istoveten z:EN 12368:2006SIST EN 12368:2006en93.080.30ICS:SIST EN 12368:20021DGRPHãþDSLOVENSKI
STANDARDSIST EN 12368:200601-julij-2006
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12368April 2006ICS 93.080.30Supersedes EN 12368:2000
English VersionTraffic control equipment - Signal headsEquipement de régulation du traffic - SignauxAnlagen zur Verkehrssteuerung - SignalleuchtenThis European Standard was approved by CEN on 27 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12368:2006: E
EN 12368:2006 (E) 2 Contents Page Foreword.4 Introduction.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.7 4 Constructional requirements.8 4.1 General.8 4.2 Signal head.8 4.3 Mountings: poles, poles with bracket and catenaries.8 4.4 Deflection.9 5 Environmental, electromagnetic compatibility (EMC) and electrical requirements.9 5.1 Environmental requirements.9 5.2 Electrical safety and EMC requirements.9 6 Optical requirements.9 6.1 General.9 6.2 Diameter of signal lights.9 6.3 Luminous intensities of signal lights.9 6.4 Distribution of luminous intensity.10 6.5 Luminance uniformity.12 6.6 Maximum phantom signal.12 6.7 Colours of signal lights.12 6.8 Signal lights with symbols.13 6.9 Background screen of signal lights.13 7 Constructional and environmental test methods.14 8 Optical test methods.17 8.1 General.17 8.2 Measurement of luminous intensities.17 8.3 Measurement of luminance for uniformity tests.18 8.4 Measurement of phantom signal.18 8.5 Measurement of the colour.19 8.6 Measurement of combined colours.19 9 Tolerances.21 10 Marking, labelling and product information.21 10.1 Marking and labelling.21 10.2 Product information.22 11 Evaluation of conformity.22 11.1 General.22 11.2 Requirements and test methods for Initial Type Testing.24 Signal Heads.26 Housing.26 11.3 Requirements for the factory production control.27 11.4 Product testing and evaluation.31 Annex A (informative)
Test, declarations and requirements.32
EN 12368:2006 (E) 3 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.34 Bibliography.41
EN 12368:2006 (E) 4 Foreword This European Standard (EN 12368:2006) 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 October 2006, and conflicting national standards shall be withdrawn at the latest by January 2008. This European Standard supersedes EN 12368:2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EN 12368:2006 (E) 5 Introduction Signal heads are mainly used to transfer safety messages to the road user to achieve specific reactions. Signal heads in road traffic transfer this information optically by signal lights which have a specific meaning and which differ in their colour of light and in the design of their illuminating surface. The visibility of a signal light depends on the colour, luminous intensity, luminous intensity distribution, luminance and luminance uniformity, the surrounding luminance (background luminance), the size of the illuminating area of the signal light, the phantom light and the distance and angle between observer and signal head. Four angular distributions of luminous intensities for signal lights are specified. The user can choose between an extra wide, wide, medium and narrow beam signal to obtain a good recognition of the signal for short distances in urban areas, for long distances in rural areas. To achieve a good performance the standard provides a number of different performance levels and two different diameters for the roundels. The optical performance of signal heads in use is a function of lens soiling, mirror soiling and a decrease of luminous flux from the lamp. To maintain the performance of the signal heads during service, it is important to ensure that after lamp replacement and cleaning of lens and mirror the light output is restored to as near 100 % as possible and never lower than 80 % of the declared specified performance(s). This European Standard does not require limits for the recognition of red or green signals with reduced luminous intensities operating in a failure mode. These limits depend on the surrounding lights (on or off) and on the situation. However, for a simple rule a red signal is considered as failed if the luminous intensity in the reference axes is I ≤ 10 cd, and a green signal is considered as being in operation if the luminous intensity is I ≥ 0,05 cd. The working environment for signal heads is relatively harsh and equipment that is deemed "fit for purpose" is expected to last in this exposed, corrosive environment for a minimum of 10 years. It is essential that all materials and manufacturing processes take this into account. The supplier should detail all steps taken to comply with this clause. For devices randomly selected from series production it is important that the requirements as to minimum luminous intensity of the light emitted are in each relevant direction of the minimum values prescribed.
EN 12368:2006 (E) 6
1 Scope This European Standard only applies to red, yellow and green signal lights for road traffic with 200 mm and 300 mm roundels. It defines the requirements for the visual, structural, environmental performances and testing of signal heads for pedestrian and road traffic use. Portable signal lights are specifically excluded from the scope of this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 12767, Passive safety of support structures for road equipment — Requirements and test methods EN 12899-1:2001, Fixed, vertical road traffic signs — Part 1: Fixed signs EN
50293, Electromagnetic compatibility — Road traffic signal systems — Product standard EN 60068-2-1, Environmental testing — Part 2: Tests — Test A: Cold (IEC 60068-2-1:1990) EN 60068-2-2, Basic environmental testing procedures — Part 2: Tests — Test B: Dry heat (IEC 60068-2-2:1974 + IEC 60068-2-2A:1976) EN 60068-2-5, Environmental testing — Part 2: Tests — Test Sa: Simulated solar radiation at ground level (IEC 60068-2-5:1975) EN 60068-2-14, Environmental testing — Part 2: Tests — Test N: Change of temperature (IEC 60068-2-14:1984 + A1:1986) EN 60068-2-30, Environmental testing — Part 2: Tests — Test Db and guidance: Damp heat, cyclic (12+12-hour cycle) (IEC 60068-2-30:1980 + A1:1985) EN 60068-2-64, Environmental testing — Part 2: Test methods — Test Fh: Vibration, broad-band random (digital control) and guidance (IEC 60068-2-64:1993 + Corrigendum 1993) EN 60529, Degree of protection provided by enclosures (IP-Code) (IEC 60529:1989) EN 60598-1:2004, Luminaries — Part 1: General requirements and tests (IEC 60598-1:2003 + Corrigendum 2004, modified) EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000) CIE 17-4:1987, International lighting vocabulary CIE 69, Methods of characterizing illuminance meters and luminance meters — Performance, characteristics and specifications HD 638, Road traffic signal systems
EN 12368:2006 (E) 7 3 Terms and definitions For the purposes of this European Standard, the terms, definitions and units of CIE 17-4:1987 and the following apply. 3.1 signal head device which comprises one or more optical units, including the housing(s), together with all the mounting brackets, fixings, hoods, visors, cowls and background screens, whose task is to convey a visual message to vehicle and pedestrian traffic 3.2 optical unit assembly of components designed to produce a light of the specified nominal size, colour, luminous intensity and shape 3.3 optical surface surface of the material adjacent to the atmosphere. It is the surface to which the impact, water and dust ingress tests are applied NOTE In many cases it is the external surface of the lens. 3.4 lens light transmitting element of the optical unit which distributes the luminous flux from the light source into preferred directions of the signal light 3.5 background screen opaque board placed around the optical unit to increase the contrast and to enhance visibility NOTE The background screen may be incorporated in the housing of the optical unit or may be detachable. 3.6 hood (visor, cowl) device located above the front of an optical unit to reduce phantom effect or to restrict the field of view 3.7 phantom signal false signal that is created by sunlight striking an optical unit 3.8 reference axis axis specified by the supplier, used for environmental and optical tests 3.9 Factory Production Control (FPC) permanent internal control of production exercised by the manufacturer 3.10
batch quantity of a product manufactured with no change in raw material, equipment, settings or operation as defined in the FPC system manual of the manufacturer 3.11 individual (and non-series) where the manufacturing process is different to the manufacturer’s usual process
EN 12368:2006 (E) 8 4 Constructional requirements 4.1 General The manufacturer shall ensure the design is such that there is a facility for maintenance. Any component requiring replacement shall be designed such that this is easily accommodated and does not affect the optical performance of the signal head. The construction and choice of materials shall be such that they will provide declared performance for a reasonable economic lifetime of the product as verified by the relevant tests given in this European Standard. The complete signal head shall be made of suitable materials to meet the impact requirements according to EN 60598-1 as specified in Clause 7. The constructional integrity shall be suitable to meet the vibration test and impact test specified in Clause 7. The supplier shall detail in his documentation what maintenance shall be carried out, including cleaning methods and materials, to ensure that the optical performance shall be maintained to at least 80 % of the minimum values set out in the appropriate parts of 6.3 and 6.4. During the declared lifetime of the optical unit the colours shall remain within the colour boxes of Table 7. 4.2 Signal head There are 4 classes for the IP rating in accordance with EN 60529 of a signal head: Class I: IP34 Class II: IP44 Class III: IP54 Class IV: IP55 Where separate protection of the optical units is required they shall be protected to IP55. The signal head, including its optical components, shall be so designed that after installation, during its lifetime as defined by the supplier, including any replacement of components, the optical and mechanical requirements are guaranteed. 4.3 Mountings: poles, poles with bracket and catenaries Mountings for signal heads come in a variety of forms, which can be grouped generally: poles, poles with brackets and catenaries. Whichever form they come in they shall be able to sustain the wind loading declared by the manufacturer for the designed maximum number of signal heads. Where electrical/electronic equipment is housed in a pole it shall be protected to IP54 either by special enclosure or by the pole and/or signal head assembly, providing the necessary protection. Where required for the purpose of demonstrating passive safety, mountings shall comply with EN 12767. Surface protection and finishing shall be declared by the manufacturer and marking of mountings shall be as Clause 10.
EN 12368:2006 (E) 9 4.4 Deflection When installed and aligned directly on a pole, temporary deflection of the signal head in any horizontal direction by wind loading shall not exceed 2 % of the total length of the pole and permanent deflection shall not exceed 0,04 %. When installed and aligned on a mounting in the form of a pole with bracket or a catenary, temporary deflection of the signal head in any horizontal direction and in the vertical direction by wind loading and/or other external loading shall not exceed 4 % of the total length of the pole(s) or the mounting and permanent deflection shall not exceed 0,08 %. Wind load and deflections shall be calculated or measured in accordance with EN 12899-1:2001. 5 Environmental, electromagnetic compatibility (EMC) and electrical requirements 5.1 Environmental requirements The signal heads shall comply with one of the following classes of operational temperature ranges: Class A +60 °C to –15 °C Class B +55 °C to –25 °C Class C +40 °C to–40 °C 5.2 Electrical safety and EMC requirements The signal heads shall comply with the requirements of EN 50293. 6 Optical requirements 6.1 General The supplier shall state what visors, anti-phantom devices and protective screens are provided to meet the requirements of 6.6 and 6.9. NOTE
Different luminous intensities and luminous intensity distributions are recommended for different locations and situations. 6.2 Diameter of signal lights Roundel signal lights for road traffic conditions shall have a nominal diameter of (200 mm or 300 mm) ± 10 %. NOTE As the requirements for visibility depend on the local conditions of road lay-out and infrastructure, on traffic conditions and light conditions, it is not feasible to give strict rules for the situations where either 200 mm or 300 mm roundel signals should be used. 6.3 Luminous intensities of signal lights The performance levels for signal lights, for both 200 mm and 300 mm roundels, shall be as specified in Table 1. NOTE The standard does not give values for reduced output operation.
EN 12368:2006 (E) 10 Table 1 — Luminous intensities (I) for red, yellow and green signal lights in the reference axis Performance level 1 2 3 Imin 100 cd 200 cd 400 cd Imax
class 1 Imax
class 2 400 cd 1 100 cd 800 cd 2 000 cd 1 000 cd 2 500 cd
For example the performance level 2/1 is the designation of a signal light with: Imin = 200 cd; Imax = 800 cd. 6.4 Distribution of luminous intensity In Tables 2, 3, 4 and 5 four angular distributions of luminous intensity for signal lights are specified as minimum luminous intensities, expressed as percentage values dependent on the choice of the following categories: A
as a percentage of the measured values on the axis 0° horizontal and 0° vertical (the reference axis); B
as a percentage of the minimum values as defined in Table 1 required on the axis 0° horizontal and 0° vertical (the reference axis). Outside the area described in Tables 2 to 5 (as applicable) the luminous intensities shall not exceed the maximum of the relevant class of performance level. The Tables 2 to 5 contain the minimum luminous intensities in % of the values in their reference axis. Only the listed combinations of classes and performance levels shall be applied. Within the field of measurement, the light pattern shall be substantially uniform, i. e. the light intensity in each direction at each test point shall meet at least the level achieved by the next consecutive measurement. Table 2 — Extra wide-beam signal (Type E) possible combinations B 1/1, B 2/2 α horiz 0° ±2,5° ±5° ±10° ±15° ±20° ±30° α vert 0° –1,5° –3° –5° –10°
100 – 80 60 50
– – – – –
85 – 75 – –
80 – – 45 –
– – – – –
60 – – – 20
40 – – – – –20° 20 – – – – – 10 –
means no specific values are required
EN 12368:2006 (E) 11
Table 3 — Wide beam signal (Type W) possible combinations A 1/1; A 2/1; A 3/1; B 1/2; B 2/1,B 2/2; B 3/2 α horiz 0° ±2,5° ±5° ±10° ±15° ±20° ±30° α vert 0° –1,5° –3° –5° –10°
100 – 80 60 30
– – – – –
85 – 75 – –
55 – – 35 –
– – – – –
3 – – – 8
1 – – – – –20° 2 – – – – – 2 –
means no specific values are required
Table 4 — Medium wide beam signal (Type M) possible combinations A 2/1; A 3/1; A 2/2; A 3/2 α horiz 0° ±2,5° ±5° ±10° ±15° ±20° ±30° α vert 0° –1,5° –3° –5° –10°
100 – 75 50 12,5
– – – – –
75 – 60 – –
40 – – 20 –
10 – – – –
1 – – – 6
* * * * * –20° 1,5 – – – – – 1 –
means no specific values are required *
means no requirements
EN 12368:2006 (E) 12
Table 5 — Narrow beam signal (Type N) possible combinations A 2/1; A 3/1; B 2/2; B 3/2 α horiz 0° ±2,5° ±5° ±10° ±15° ±20° ±30° α vert 0° –1,5° –3° –5° –10°
100 95 70 40 6
75 90 – – –
65 – 45 – –
15 – – 10 –
1,5 – – – 5
* * * * *
* * * * * –20° * * * * * * * –
means no specific values are required *
means no requirements
6.5 Luminance uniformity The luminance uniformity of the roundel as the ratio of the lowest and greatest luminance Lmin : Lmax shall be ≥1 : 10 for types E, W and M and ≥1 : 15 for type N. 6.6 Maximum phantom signal For each signal colour the maximum phantom signal Iph for light incident at an angle of 10° to the reference axis shall comply with of Table 6, where Is is the actual measured luminous intensity I of the signal light: Table 6 — Requirement for the ratio of Is to Iph Signal light function Class 1 Class 2 Class 3 Class 4 Class 5 red, yellow >1 >5 >4 >8 >16 green >1 >5 >8 >16 >16
6.7 Colours of signal lights The colours of signal lights are red, yellow and green and they shall comply with Table 7 when using anti-phantom devices and including combined colours from real signal and all classes of phantom light, except class 1.
EN 12368:2006 (E) 13 Table 7 — Required chromaticity regions for the colour boundaries of signal lights and combined colours from real signal and phantom light Colour of signal light Colour boundaries of signal lights Boundary Red y = 0,290 y = 0,980 – x y = 0,320 red purple yellow Yellow y = 0,387 y = 0,980 – x y = 0,727 x + 0,054 red white green Green y = 0,726 – 0,726 x x = 0,625 y – 0,041 y = 0,400 yellow white blue
6.8 Signal lights with symbols Symbols shall only be placed on roundels of signal lights which demonstrate compliance with 6.3 to 6.7. The optical performance for symbols is derived by using the performance of the full roundel. Class S1: Symbols placed on roundels meeting 100 % of one of the levels set out in Table 1. Class S2: Symbols placed on roundels meeting 50 % of one of the levels set out in Table 1 (only pedestrian traffic). 6.9 Background screen of signal lights Signal lights shall have an opaque background screen or a rim of 25 mm which gives suitable contrast. The background screen may be incorporated in the housing of the signal head or may consist of a detachable screen. The dimensions of the background screen for three-colour-signal heads shall comply with one of the four classes specified in Table 8. The classes are expressed in the overall dimensions (height and width) of the opaque background screen and for 200 mm and 300 mm roundels.
EN 12368:2006 (E) 14
Table 8 — Dimensions of background screens for three-colour-signal heads Heights Width Class d = 200 mm d = 300 mm d = 200 mm d = 300 mm C 1 ≥647 mm ≥980 mm ≥222 mm ≥336 mm C 2 ≥995 mm ≥1 367 mm ≥350 mm ≥650 mm C 3 ≥982 mm ≥1 517 mm ≥450 mm ≥800 mm C 4 ≥1 000 mm ≥1 500 mm ≥600 mm ≥900 mm
7 Constructional and environmental test methods The test methods for four environmental ranges are detailed in Table 9, Table 10, Table 11 and Table 12. The latter is generally considered an electrical test but in this case ingress of dust and moisture can adversely affect optical performance hence are included in this section. Table 9 — Impact resistance class IR 1 class IR 2 class IR 3 IMPACT test
EN 60598-1:2004, 4.13.4 0,51 kg ball of 50 mm diameter dropped from: 100 mm 400 mm 1 300 mm NOTE Surface cracks are allowed providing complete penetration does not occur, i.e. the integrity of the seal is not broken.
Table 10 — Constructional integrity Random vibration Frequency range: 10 Hz to 200 Hz EN 60068-2-64
Test Fh, class AJ2 ASD levels: 0,02 g2/Hz (10 Hz to 50 Hz) 0,02 g2/Hz (50 Hz to 200 Hz with slope 3 dB/octave). Overall RMS acceleration 1,2 g
Table 11 — Ingress Water penetration and dust
EN 60529, test 13 and 14 As required for the specified IP rating NOTE Ingress is allowed into the signal head provided it does not affect its performance either electrically or optically.
EN 12368:2006 (E) 15 Table 12 — Temperature range Test
Class A Class B Class C preconditioning none initial examination visual inspection, operational test condition of the specimen during exposure period equipment switched on as specified in 11.1 conditioning temperature 60 °C 55 °C 40 °C conditioning time 16 h loading and measurement during exposure period visual inspection during last hour at expo-sure temperature and during cooling period non-standard recovery none Dry heat EN 60068-2-2 Test Bb final measurement visual inspection, operational test preconditioning none initial examination visual inspection, operational test condition of the specimen during exposure period equipment off until the final hour conditioning temperature –15 °C –25 °C –40 °C conditioning time 16 h loading and measurement during exposure period visual inspection during last hour at expo-sure temperature and during heating periodnon-standard recovery none Cold EN 60068-2-1 final measurement visual inspection, operational test lower temperature TA –15 °C –25 °C –40 °C upper temperature TB +60 °C +55 °C +40 °C rate of change of temperature 1 °C/min number of cycles 1 initial examination visual inspection, operational test exposure time t1 16 h measurements during exposure and time of execution visual inspection, operational test during the last hour of exposure time t1at lower temperature and during cooling period in 5 °C-intervals; during the last hour of exposure time t1 at upper temperature and during heating period in 5 °C-intervals recovery
Change of temperature EN 60068-2-14 Test Nb (This test may be carried out instead of the dry heat and cold test.)
final measurements visual inspection, operational tests
EN 12368:2006 (E) 16 Table 12 (concluded) Test
Class A Class B Class C air temperature 40 °C number of cycles 2 initial examination visual inspection, operational test condition of specimens during expo-sure
mounting or support
variant 2 intermediate measurements visual inspection, operational test during first 3 h of both cycles, and cool down period ofthe 2nd cycle recovery at standard atmospheric conditions, 2 h Damp heat, cyclic EN 60068-2-30 Test Db electrical and mechanical final measurement visual inspection, operational test within 30 min after recovery is finished preconditioning
initial examination visual inspection, operational test substrate for specimen, position of the irradiation measurement plane / test procedure and object of the test B equipment on and fully loaded, this test may be carried out as an alternative to the dry heat test Bb air temperature inside the test cham-ber during irradiation 40 °C maximum permissible air velocity inside the test chamber 2 m/s humidity conditions / test duration 1 cycle loading and measurement during exposure (measurement of the tem-perature of the specimen included) equipment on as specified in 11.1 recovery
Solar radiation incidence to the front of the signal under 45° EN 60068-2-5 Test Sa
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