IEC 60809:2014/AMD1:2017

IEC 60809 ®
Edition 3.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Lamps for road vehicles – Dimensional, electrical and luminous requirements

Lampes pour véhicules routiers – Exigences dimensionnelles, électriques et
lumineuses
IEC 60809:2014-12/AMD1:2017-03(en-fr)

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IEC 60809 ®
Edition 3.0 2017-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
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 978-2-8322-4138-7

 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
IEC 60809:2014-12/AMD1:2017-03/ISH1:2017-07(en-fr)

– 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
© IEC 2017
FOREWORD
This amendment has been prepared by subcommittee 34A: Lamps, of IEC technical
committee 34: Lamps and related equipment.
The text of this amendment is based on the following documents:
CDV Report on voting
34A/1901/CDV 34A/1940/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
The contents of the interpretation sheet 1 of July 2017 have been included in this copy.
___________
4.4.1 Colour of light
Add, after the third dashed list item (definition of red colour), the following new text:
– finished filament lamps emitting amber light:
A green boundary: y = x – 0,120
A the spectral locus
A red boundary: y = 0,390
A white boundary: y = 0,790 – 0,670 x
With intersection points:
A : x = 0,545, y = 0,425
A : x = 0,560, y = 0,440
A : x = 0,609, y = 0,390
A : x = 0,597, y = 0,390
Annex E
Replace the existing title with the following new title:

 IEC 2017
Method of measuring internal elements of H4, H17, H19 and HS1 lamps
E.2.6 Plane Y1-Y1
Replace the existing paragraph with the following new text:
Plane Y1-Y1 is a plane parallel to the reference plane at a distance of 29,5 mm from it
(30,0 mm for the 24 V type, 30,5 mm for category H19).
E.2.8 Plane Y3-Y3
Replace the existing paragraph with the following new text:
Plane Y3-Y3 is a plane parallel to the reference plane at a distance of 23,5 mm from it
(25,0 mm for categories HS1 and H17, 24,5 mm for category H19).
E.3 Viewing directions (see Figure E.1)
Add, at the end of Clause E.3, the following new sub-clause:
E.3.4 Viewing direction 
Viewing direction  is perpendicular to plane V-V, seen from the side of the right-hand shield
edge.
E.4.1 Shield and filaments (see Figure E.2)
Replace the existing text with the following new text:
Viewing direction 
MP 1 and MP 2 The intersections of the main beam filament axis with planes Y3-Y3
and Y4-Y4
MP 3 and MP 4 The intersections of the shield edge with planes Y1-Y1 and Y2-Y2
MP 5 and MP 6 The intersections of the envelope of the dipped beam filament with
planes Y1-Y1 and Y2-Y
...