Lamps for road vehicles - Dimensional, electrical and luminous requirements

IEC 60809:2014 is applicable to replaceable and standardised lamps (filament lamps, discharge lamps and LED light sources) to be used in headlamps, fog-lamps and signalling lamps for road vehicles. In some applications, these lamps may be installed as non-replaceable. This third edition cancels and replaces the second edition (1995), its Amendment 1 (1996), its Amendment 2 (2002), its Amendment 3 (2004), its Amendment 4 (2009) and its Amendment 5 (2012). This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the introduction of requirements for non-replaceable filament lamps;
b) the introduction of requirements for LED light sources.

Lampes pour véhicules routiers - Exigences dimensionnelles, électriques et lumineuses

L'IEC 60809:2014 est applicable aux lampes remplaçables et normalisées (lampes à filament, lampes à décharge et sources lumineuses à LED) destinées à être utilisées dans les projecteurs avant, feux de brouillard et feux de signalisation des véhicules routiers. Dans certaines applications, ces lampes peuvent être installées en tant que lampes non remplaçables. Cette troisième édition annule et remplace la deuxième édition (1995), l'Amendement 1 (1996), l'Amendement 2 (2002), l'Amendement 3 (2004), l'Amendement 4 (2009) et l'Amendement 5 (2012). Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) introduction des exigences applicables aux lampes à filament non remplaçables;
b) introduction des exigences applicables aux sources lumineuses à LED.

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Publication Date
28-Mar-2019
Current Stage
DELPUB - Deleted Publication
Start Date
30-Sep-2019
Completion Date
07-Apr-2021
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IEC 60809 ®
Edition 3.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
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IEC 60809 ®
Edition 3.0 2014-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et

lumineuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 29.140.20; 43.040.20 ISBN 978-2-8322-1966-9

– 2 – IEC 60809:2014  IEC 2014
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
4 Requirements and test conditions for filament lamps . 14
4.1 General requirements . 14
4.2 Lamp marking . 14
4.3 Bulbs . 14
4.4 Colour . 15
4.4.1 Colour of light . 15
4.4.2 Colour endurance . 16
4.4.3 Coated bulb . 16
4.5 Lamp dimensions . 16
4.6 Caps and bases . 16
4.7 Initial electrical and luminous requirements . 17
4.8 Check on optical quality. 17
4.8.1 General . 17
4.8.2 12 V lamps emitting white light . 17
4.8.3 6 V and 24 V lamps emitting white light . 17
4.8.4 Lamps emitting selective-yellow light . 17
4.9 UV radiation . 18
4.10 Standard (étalon) filament lamps . 18
4.11 Non-replaceable filament lamps . 18
4.11.1 General . 18
4.11.2 Fixation. 19
4.11.3 Lifetime . 19
4.11.4 Colour endurance . 20
4.11.5 Luminous flux and colour maintenance . 20
4.11.6 Vibration and shock resistance . 20
5 Requirements and test conditions for discharge lamps . 21
5.1 General requirements . 21
5.2 Lamp marking . 21
5.3 Bulbs . 21
5.4 Caps . 21
5.5 Position and dimensions of electrodes, arc and black stripes . 22
5.5.1 Measurements . 22
5.5.2 Electrodes . 22
5.5.3 Arc . 22
5.5.4 Black stripes . 22
5.6 Starting, run-up and hot-restrike characteristics . 22
5.6.1 Starting . 22
5.6.2 Run-up . 22
5.6.3 Hot-restrike . 23
5.6.4 Compliance . 23
5.7 Electrical and photometric characteristics . 23
5.7.1 Voltage and wattage . 23

5.7.2 Luminous flux . 23
5.7.3 Compliance . 23
5.8 Colour . 23
5.9 UV radiation . 24
5.10 Standard (étalon) discharge lamps . 25
6 Requirements and test conditions for LED light sources . 25
6.1 General requirements . 25
6.2 Light source marking . 25
6.3 Optical surfaces . 26
6.4 Colour of light . 26
6.5 Lamp dimensions . 26
6.6 Caps and bases . 26
6.7 Initial electrical and photometrical requirements. 26
6.8 Red content . 26
6.9 UV radiation . 26
6.10 Standard (étalon) light sources . 26
7 Sampling and conditions of compliance . 27
8 Lamp data sheets . 27
8.1 General . 27
8.2 List of specific lamp types . 27
Annex A (normative) Filament shape, length and position .
...


IEC 60809 ®
Edition 3.3 2019-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
Lumineuses
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie

et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des

questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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If you wish to give us your feedback on this publication or CISPR.

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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
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IEC 60809 ®
Edition 3.3 2019-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et

Lumineuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.20; 43.040.20 ISBN 978-2-8322-6781-3

IEC 60809 ®
Edition 3.3 2019-03
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
Lumineuses
 IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
IEC 60809
Edition 3.0  2014-12
LAMPS FOR ROAD VEHICLES –
DIMENSIONAL, ELECTRICAL AND LUMINOUS REQUIREMENTS

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
34A/2007/ISH 34A/2017/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
___________
Introduction (not part of the proposal)
In the Amendment 1 to Ed.3 (34A/1901/CDV voted positively), Annex E was updated to
extend the method of measuring internal elements of dual filament lamps to all such
categories, for instance the new category H19.
In the amendment of the current category sheet for H19 (Regulation No. 37), the distinct
physical shield width B is introduced (8,6 ± 0,3 mm) to ensure interchangeability of light
sources as it relates to road safety (see WP.29/2016/111; to become Resolution [R.E.5] on
the common specification of light source categories). In the category sheet for H19 reference
is made to Annex E of IEC 60809:2014 for the method of measurement of the internal
elements.
ICS 29.140.20; 43.040.20
– 2 – IEC 60809:2014/AMD1:2017/ISH1:2017

 IEC 2017
See in Figure 1 an extract from WP.29/2016/111.

Practical measurement set-ups use optical vision-systems like a projection system to

determine the dimensions of the internal elements.

Figure 1 – Category sheet for H19
Problem statement:
When using the above mentioned vision system, a measurement error is introduced due to
refraction and blurring (by the glass envelope), additional to the measurement uncertainty.
The effect is mainly dependent on the shield width in relation to the glass envelope diameter.
For lamp designs with a relatively small glass envelope diameter (there is only an upper limit
specified), the shield gets close to the glass envelope and the effect becomes significant.
Figure 2 shows a simplified drawing of the view imaging situations of the shield, with and
without the effect due to the “refractive index” of the glass envelope.

a) Physical dimension “B” when the glass envelope is removed,
b) Visual size of the shield width when measured through the glass envelope in direction ,
resulting in a “smaller value for “B”.
c) Visual size of the shield width when measured through the glass envelope in direction
“-” (the opposite direction as defined in IEC 60809:2014/AMD1:2017), even show the
contrary deviation from the real dimension, resulting in a “larger value for “B”.

 IEC 2017
Determination from viewing direction  results in a smaller value than real

a)
b)
Lines indicating the “cut-of” lines for light safety

Shield
Glass envelope
a)
c)
Determination from viewing direction “-” results in a larger value than real

Figure 2 – Simplified drawing of the imaging situations
Proposal:
To publish an Interpretation Sheet on Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for
road vehicles – Dimensional, electrical and luminous requirements, as follows:
INTERPRETATION SHEET
Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for road vehicles –
Dimensional, electrical and luminous requirements
Note to MP 24 to MP 25 in Table E.1
To avoid measurement errors of the shield width B due to the refractions by the glass
envelope the following options are considered:
1) The removal of the glass envelope.
2) The use of X-ray measurement.
NOTE 1 Option 1 can be used for verification.
3) The use of an immersion fluid inside and outside of the envelope in a rectangular glass

bath ensuring the refractive index of the immersion fluid matches that of the glass
envelope close enough to avoid refractions. The immersion fluid can be filled inside the
envelope after removing the top of the bulb. Care shall be taken not to touch/move
internal elements.
NOTE 2 Option 1 can be used for verification of the immersion fluid and the test setup.
4) The use of a correction factor, taking into account the optical offset and the measurement
uncertainty. The verification of the correction factor for a certain lamp design shall be
made according the measurement method under item “1)” i.e. after removal of the glass
envelope.
NOTE 3 Option 1 can be used for verification.
Note to this interpretation sheet:
The next revision of this standard shall incorporate an improvement of the body text to
elminate the need for this interpretation sheet.

– 2 – IEC 60809:2014+AMD1:2017

+AMD2:2017+AMD3:2019 CSV  IEC 2019

CONTENTS
FOREWORD . 7

1 Scope . 9

2 Normative references . 9

3 Terms and definitions . 11

4 Requirements and test conditions for filament lamps . 14

4.1 General requirements . 14

4.2 Lamp marking . 14

4.3 Bulbs . 15
4.4 Colour . 15
4.4.1 Colour of light . 15
4.4.2 Colour endurance . 16
4.4.3 Coated bulb . 17
4.5 Lamp dimensions . 17
4.6 Caps and bases . 17
4.7 Initial electrical and luminous requirements . 17
4.8 Check on optical quality. 17
4.8.1 General . 17
4.8.2 12 V lamps emitting white light . 17
4.8.3 6 V and 24 V lamps emitting white light . 18
4.8.4 Lamps emitting selective-yellow light . 18
4.9 UV radiation .
...


IEC 60809 ®
Edition 3.2 2017-11
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from

either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie

et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des

questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
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also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

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Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
La recherche avancée permet de trouver des publications IEC
65 000 entrées terminologiques électrotechniques, en anglais
en utilisant différents critères (numéro de référence, texte,
et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les
publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées.
antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
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Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
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IEC 60809 ®
Edition 3.2 2017-11
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et

lumineuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.20; 43.040.20 ISBN 978-2-8322-5063-1

IEC 60809 ®
Edition 3.2 2017-11
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
 IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60809
Edition 3.0  2014-12
LAMPS FOR ROAD VEHICLES –
DIMENSIONAL, ELECTRICAL AND LUMINOUS REQUIREMENTS

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
34A/2007/ISH 34A/2017/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
___________
Introduction (not part of the proposal)
In the Amendment 1 to Ed.3 (34A/1901/CDV voted positively), Annex E was updated to
extend the method of measuring internal elements of dual filament lamps to all such
categories, for instance the new category H19.
In the amendment of the current category sheet for H19 (Regulation No. 37), the distinct
physical shield width B is introduced (8,6 ± 0,3 mm) to ensure interchangeability of light
sources as it relates to road safety (see WP.29/2016/111; to become Resolution [R.E.5] on
the common specification of light source categories). In the category sheet for H19 reference
is made to Annex E of IEC 60809:2014 for the method of measurement of the internal
elements.
ICS 29.140.20; 43.040.20
– 2 – IEC 60809:2014/AMD1:2017/ISH1:2017
 IEC 2017
See in Figure 1 an extract from WP.29/2016/111.
Practical measurement set-ups use optical vision-systems like a projection system to
determine the dimensions of the internal elements.

Figure 1 – Category sheet for H19
Problem statement:
When using the above mentioned vision system, a measurement error is introduced due to
refraction and blurring (by the glass envelope), additional to the measurement uncertainty.
The effect is mainly dependent on the shield width in relation to the glass envelope diameter.
For lamp designs with a relatively small glass envelope diameter (there is only an upper limit
specified), the shield gets close to the glass envelope and the effect becomes significant.
Figure 2 shows a simplified drawing of the view imaging situations of the shield, with and
without the effect due to the “refractive index” of the glass envelope.
a) Physical dimension “B” when the glass envelope is removed,
b) Visual size of the shield width when measured through the glass envelope in direction ,
resulting in a “smaller value for “B”.
c) Visual size of the shield width when measured through the glass envelope in direction
“-” (the opposite direction as defined in IEC 60809:2014/AMD1:2017), even show the
contrary deviation from the real dimension, resulting in a “larger value for “B”.

 IEC 2017
Determination from viewing direction  results in a smaller value than real
a)
b)
Lines indicating the “cut-of” lines for light safety

Shield
Glass envelope
a)
c)
Determination from viewing direction “-” results in a larger value than real

Figure 2 – Simplified drawing of the imaging situations
Proposal:
To publish an Interpretation Sheet on Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for
road vehicles – Dimensional, electrical and luminous requirements, as follows:
INTERPRETATION SHEET
Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for road vehicles –
Dimensional, electrical and luminous requirements
Note to MP 24 to MP 25 in Table E.1
To avoid measurement errors of the shield width B due to the refractions by the glass
envelope the following options are considered:
1) The removal of the glass envelope.
2) The use of X-ray measurement.
NOTE 1 Option 1 can be used for verification.
3) The use of an immersion fluid inside and outside of the envelope in a rectangular glass
bath ensuring the refractive index of the immersion fluid matches that of the glass
envelope close enough to avoid refractions. The immersion fluid can be filled inside the
envelope after removing the top of the bulb. Care shall be taken not to touch/move
internal elements.
NOTE 2 Option 1 can be used for verification of the immersion fluid and the test setup.
4) The use of a correction factor, taking into account the optical offset and the measurement
uncertainty. The verification of the correction factor for a certain lamp design shall be
made according the measurement method under item “1)” i.e. after removal of the glass
envelope.
NOTE 3 Option 1 can be used for verification.
Note to this interpretation sheet:
The next revision of this standard shall incorporate an improvement of the body text to
elminate the need for this interpretation sheet.

– 2 – IEC 60809:2014+AMD1:2017
+AMD2:2017 CSV  IEC 2017
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
4 Requirements and test conditions for filament lamps . 14
4.1 General requirements . 14
4.2 Lamp marking . 14
4.3 Bulbs . 15
4.4 Colour . 15
4.4.1 Colour of light . 15
4.4.2 Colour endurance . 16
4.4.3 Coated bulb . 16
4.5 Lamp dimensions . 17
4.6 Caps and bases . 17
4.7 Initial electrical and luminous requirements . 17
4.8 Check on optical quality. 17
4.8.1 General .
...


IEC 60809 ®
Edition 3.1 2017-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
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IEC 60809 ®
Edition 3.1 2017-03
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et

lumineuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.140.20; 43.040.20 ISBN 978-2-8322-4183-7

IEC 60809 ®
Edition 3.1 2017-03
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
 IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 60809
Edition 3.0  2014-12
LAMPS FOR ROAD VEHICLES –
DIMENSIONAL, ELECTRICAL AND LUMINOUS REQUIREMENTS

INTERPRETATION SHEET 1
This interpretation sheet has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this interpretation sheet is based on the following documents:
ISH Report on voting
34A/2007/ISH 34A/2017/RVD
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
___________
Introduction (not part of the proposal)
In the Amendment 1 to Ed.3 (34A/1901/CDV voted positively), Annex E was updated to
extend the method of measuring internal elements of dual filament lamps to all such
categories, for instance the new category H19.
In the amendment of the current category sheet for H19 (Regulation No. 37), the distinct
physical shield width B is introduced (8,6 ± 0,3 mm) to ensure interchangeability of light
sources as it relates to road safety (see WP.29/2016/111; to become Resolution [R.E.5] on
the common specification of light source categories). In the category sheet for H19 reference
is made to Annex E of IEC 60809:2014 for the method of measurement of the internal
elements.
ICS 29.140.20; 43.040.20
– 2 – IEC 60809:2014/AMD1:2017/ISH1:2017
 IEC 2017
See in Figure 1 an extract from WP.29/2016/111.
Practical measurement set-ups use optical vision-systems like a projection system to
determine the dimensions of the internal elements.

Figure 1 – Category sheet for H19
Problem statement:
When using the above mentioned vision system, a measurement error is introduced due to
refraction and blurring (by the glass envelope), additional to the measurement uncertainty.
The effect is mainly dependent on the shield width in relation to the glass envelope diameter.
For lamp designs with a relatively small glass envelope diameter (there is only an upper limit
specified), the shield gets close to the glass envelope and the effect becomes significant.
Figure 2 shows a simplified drawing of the view imaging situations of the shield, with and
without the effect due to the “refractive index” of the glass envelope.
a) Physical dimension “B” when the glass envelope is removed,
b) Visual size of the shield width when measured through the glass envelope in direction ,
resulting in a “smaller value for “B”.
c) Visual size of the shield width when measured through the glass envelope in direction
“-” (the opposite direction as defined in IEC 60809:2014/AMD1:2017), even show the
contrary deviation from the real dimension, resulting in a “larger value for “B”.

 IEC 2017
Determination from viewing direction  results in a smaller value than real
a)
b)
Lines indicating the “cut-of” lines for light safety

Shield
Glass envelope
a)
c)
Determination from viewing direction “-” results in a larger value than real

Figure 2 – Simplified drawing of the imaging situations
Proposal:
To publish an Interpretation Sheet on Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for
road vehicles – Dimensional, electrical and luminous requirements, as follows:
INTERPRETATION SHEET
Clause E.5 of IEC 60809:2014/AMD1:2017, Lamps for road vehicles –
Dimensional, electrical and luminous requirements
Note to MP 24 to MP 25 in Table E.1
To avoid measurement errors of the shield width B due to the refractions by the glass
envelope the following options are considered:
1) The removal of the glass envelope.
2) The use of X-ray measurement.
NOTE 1 Option 1 can be used for verification.
3) The use of an immersion fluid inside and outside of the envelope in a rectangular glass
bath ensuring the refractive index of the immersion fluid matches that of the glass
envelope close enough to avoid refractions. The immersion fluid can be filled inside the
envelope after removing the top of the bulb. Care shall be taken not to touch/move
internal elements.
NOTE 2 Option 1 can be used for verification of the immersion fluid and the test setup.
4) The use of a correction factor, taking into account the optical offset and the measurement
uncertainty. The verification of the correction factor for a certain lamp design shall be
made according the measurement method under item “1)” i.e. after removal of the glass
envelope.
NOTE 3 Option 1 can be used for verification.
Note to this interpretation sheet:
The next revision of this standard shall incorporate an improvement of the body text to
elminate the need for this interpretation sheet.

– 2 – IEC 60809:2014+AMD1:2017 CSV
 IEC 2017
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
4 Requirements and test conditions for filament lamps . 14
4.1 General requirements . 14
4.2 Lamp marking . 14
4.3 Bulbs . 15
4.4 Colour . 15
4.4.1 Colour of light . 15
4.4.2 Colour endurance . 16
4.4.3 Coated bulb . 16
4.5 Lamp dimensions . 17
4.6 Caps and bases . 17
4.7 Initial electrical and luminous requirements . 17
4.8 Check on optical quality. 17
4.8.1 General .
...

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