IEC 62868:2014

IEC 62868 ®
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Safety
requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à l’éclairage
général – Exigences de sécurité
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IEC 62868 ®
Edition 1.0 2014-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) panels for general lighting – Safety

requirements
Panneaux à diodes électroluminescentes organiques (OLED) destinés à l’éclairage

général – Exigences de sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 29.140.99 ISBN 978-2-8322-1871-6

– 2 – IEC 62868:2014 © IEC 2014
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General . 6
4.1 General requirements . 6
4.2 General test requirements . 7
5 Marking . 7
5.1 Contents and location . 7
5.2 Durability and legibility of marking . 7
6 Construction . 8
6.1 General . 8
6.2 Mechanical strength . 8
6.3 Internal short circuit . 8
6.4 Wireways . 9
6.5 Resistance to dust, solid objects and moisture . 9
7 Mechanical hazard . 9
8 Fault conditions . 9
9 Insulation resistance and electric strength . 10
9.1 Insulation resistance . 10
9.2 Electric strength . 10
10 Thermal stress . 10
11 Creepage distances and clearances . 10
12 Resistance to heat and fire . 10
12.1 Resistance to heat . 10
12.2 Resistance to fire . 10
13 Photobiological safety . 11
14 Terminals . 11
15 Information for luminaire design . 11
Annex A (informative) Construction of OLED panels . 12
Annex B (informative) Information for luminaire design . 14
Annex C (normative) Method of provoking internal short circuit . 15
C.1 Method for an OLED panel with glass substrates . 15
C.2 Method for an OLED panel with flexible plastic substrates . 15
C.3 Other methods . 15
Annex D (informative) Overview of the OLED lighting system consisting of OLED
panel or module . 16

Figure A.1 – Schematic diagram of OLED tile for lighting . 12
Figure A.2 – Schematic diagram of OLED panel (Example 1) for lighting . 12
Figure A.3 – Schematic diagram of OLED panel (Example 2) for lighting . 13
Figure A.4 – Schematic diagram of OLED panel (Example 3) for lighting . 13
Figure D.1 – Schematic diagram of OLED lighting system consisting of OLED panel
or module . 16
Table 1 – Contents and location of marking . 7

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – SAFETY REQUIREMENTS

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62868 has been prepared by subcommittee SC 34A: Lamps, of
IEC technical committee 34: Lamps and related equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
34A/1786FDIS 34A/1806/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62868:2014 © IEC 2014
In this standard, the following print types are used:
– requirements: roman type,
– test specifications: italic type,
– notes: smaller roman type.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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.
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.
ORGANIC LIGHT EMITTING DIODE (OLED) PANELS
FOR GENERAL LIGHTING – SAFETY REQUIREMENTS

1 Scope
This International Standard specifies the safety requirements of OLED tiles and panels for use
on d.c. supplies up to 120 V or a.c. supplies up to 50 V at 50 Hz or 60 Hz for indoor and
similar general lighting purpose.
NOTE 1 At this moment only test methods for d.c. operated OLED panels are provided. Provisions for a.c.
operated OLED panels are under consideration.
NOTE 2 The construction of OLED tiles and panels is illustrated in Annex A.
NOTE 3 The OLED lighting system consisting of OLED panels or modules is illustrated in Annex D.
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.
IEC 60598-1, Luminaires – Part 1: General requirements and tests
IEC 60050 (all parts): International electrotechnical vocabulary (available at
)
IEC 60068-2-6:2007, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal)
IEC TR 62854:2014, Sharp edge testing apparatus and test procedure for lighting
equipment – Tests for sharpness of edge
ISO 4046-4:2002, Paper, board, pulps and related terms – Vocabulary – Part 4: Paper and
board grades and converted products
3 Terms and definitions
For the purpose of this document, the terms and definitions given in IEC 60050-845 and the
following apply.
3.1
organic light emitting diode
OLED
light emitting semiconductor consisting of an electroluminescent zone made of organic
compounds, situated between two electrodes
Note 1 to entry: This note applies to the French language only.
3.2
OLED tile
smallest functional OLED light source which cannot be separated into smaller OLED lighting
elements containing at least one contact ledge with at least one positive and one negative
pole for connection to the electrical power supply

– 6 – IEC 62868:2014 © IEC 2014
3.3
OLED panel
independently operable unit OLED product containing an OLED tile and means of connection
to electrical supply such as a connector, PCB (printed circuit board), passive electronic
components and optionally a frame
3.4
OLED module
assembly of one or more OLED panels and active electronic components
3.5
rated value
quantity value for a characteristic of a product for specific operating conditions with the values
and the conditions specified in the relevant standard, or assigned by the manufacturer or
responsible vendor
3.6
type test
test or series of tests made on a type test sample for the purpose of checking compliance of
the design of a given product with the requirements of the relevant standard
3.7
stabilization
keeping an OLED panel switched on under specified electrical input to obtain stable
conditions
Note 1 to entry: The mentioned conditions can be photometric or electrical as specified in the relevant test clause.
3.8
stabilization time
time, which the OLED panel requires to obtain stable conditions with specified electrical input
Note 1 to entry: The mentioned conditions can be photometric or electrical as specified in the relevant test clause.
3.9
dark spot
small area remarkably darker than surrounding light output area on the OLED panel
Note 1 to entry: A dark spot can be due to lower current density or an open circuit in that area.
3.10
internal short circuit
unintentional conductive path between OLED anode and OLED cathode localized on a small
area
Note 1 to entry: An internal short circuit can look like a dark spot. It can lead to a significant heat generation in
that area.
4 General
4.1 General requirements
An OLED panel shall be designed and manufactured in such a way as to operate safely during
normal operation and not to cause any danger to persons and the environment.
In case of a failure of an OLED panel it shall fail safely.
It is understood that reference to an OLED panel also includes reference to OLED tiles in the
requirements and tests of this standard.

4.2 General test requirements
The tests, unless otherwise specified, are carried out at an ambient temperature of
25 °C ± 5 °C.
The tests shall be conducted at the rated current with a tolerance of 1 % unless otherwise
specified in this standard.
The OLED panel under test shall be mounted according to the manufacturer’s installation
instructions. If more than one way of mounting is specified the most onerous way shall be
chosen for each test. For electrical tests, this is the position leading to the largest heat build-
up of the light emitting surface. The orientation of the OLED panel shall be maintained during
the entire test.
5 Marking
5.1 Contents and location
Marking of the OLED panel shall be done according to Table 1.
Table 1 – Contents and location of marking
Parameters Product Packaging or product
datasheet or leaflet
Manufacturer (or responsible vendor) or trademark Mandatory
Polarity Mandatory
Model number or production code Mandatory Mandatory
Rated current or rated current range Mandatory
Rated voltage or rated voltage range Mandatory
Rated power Mandatory
Type of power supply (d.c. or a.c.) and frequency Mandatory
Shape and dimension Mandatory
Connecting information Mandatory
Mounting instruction Mandatory
Operating temperature range Mandatory
IP number Mandatory
Information for luminaire design Mandatory

The connecting information shall include methods of mechanical and electrical connection.
The information of the electrical connection may include the type of driver.
For marking of IP number, symbols for degree of protection shall be in accordance with
Section 3 of IEC 60598-1.
5.2 Durability and legibility of marking
Marking shall be durable and legible.
Compliance is checked by visual inspection and (for marking on the OLED panel) by trying to
remove the marking by rubbing the area lightly by hand for 15 s with a piece of smooth cloth,
dampened with water.
– 8 – IEC 62868:2014 © IEC 2014
6 Construction
6.1 General
Wood, cotton, silk, paper and similar fibrous material shall not be used as insulation.
Compliance is checked by inspection.
6.2 Mechanical strength
The OLED panel shall have sufficient mechanical strength.
Compliance is checked by the vibration test.
For the vibration test, the OLED panel shall be mounted according to 4.2.
A sinusoidal vibration test is conducted according to IEC 60068-2-6 with the following
parameters:
– displacement: 0,35 mm
– acceleration: 50 m/s
– frequency range: 10 Hz to 500 Hz
– axes of vibration: 3
– duration: 3 × 10 cycles (10 times per axis)
After completion of the vibration test, the OLED panel shall be operated for 15 min under
conditions according to 4.2.
Compliance:
After the test, the OLED panel is checked by inspection. Any splintered or broken glass is not
accepted. Fire, smoke or flammable gas shall not be produced. The OLED panel shall have
no loosened parts which could impair the safety.
Electrical contacts which could not be touched before the vibration test (e.g. those in OLED
panels according to Figure A.3 and Figure A.4) shall not have become accessible after the
test.
6.3 Internal short circuit
An OLED panel with internal short circuit shall not cause any hazard.
Compliance is checked by the following test:
An internal short circuit shall be provoked intentionally in the OLED panel under test
according to instructions given by the manufacturer or according to a method described in
Annex C. The location of this internal short circuit shall be close to the edge of the light output
area at around 2 mm distance.
Before starting the test, the test sample of the OLED panel shall not be operated.
The test sample of the OLED panel shall be operated at the rated current for 30 min for
testing.
If the test sample does not generate the internal short circuit during the test operation, the
internal short circuit test shall be repeated with the same sample.

If none of the methods described in the manufacturer’s instruction and Annex C generate an
internal short circuit after three attempts, the test sample passes the test.
Compliance: An OLED panel passes this test if there is no emission of flames or molten
material during the test. Any hot material from the sample shall not ignite a tissue paper, as
specified in 4.187 of ISO 4046-4:2002, spread below the OLED panel. Any splintered or
broken glass is not accepted.
6.4 Wireways
Wireways shall be smooth and free from sharp edges, burrs, flashes and the like, which might
cause abrasion of the insulation of the wiring. Parts such as sharp-edged screws shall not
protrude into wireways.
Compliance is checked by inspection.
6.5 Resistance to dust, solid objects and moisture
If an IP number is rated, the OLED panel shall comply with Section 9 of IEC 60598-1.
NOTE IP numbers for degrees of protection are explained in IEC 60598-1 Annex J.
7 Mechanical hazard
An OLED panel with glass edges or corners shall be free from sharp edges or points that
could create hazards during installation, normal operation or maintenance.
An OLED panel with thin metal foil or thin plastic film shall have protections against sharp
edges or points that could during installation, normal operation, or maintenance, create
hazards.
Compliance is checked by inspection and means of the sharp edge tester according to
IEC TR 62854.
8 Fault conditions
An OLED panel shall not impair safety under fault conditions that may occur during the
intended use.
Compliance is checked with the following overpower test.
The overpower test shall be conducted at an ambient temperature of 25 °C ± 5 °C unless
otherwise specified by the manufacturer or responsible vendor. The temperature shall be
maintained within ± 2 °C during the test.
The OLED panel shall be operated with rated current. The power shall be monitored at the
input side. The input power shall be increased until 150 % of the rated current or power is
reached. The test shall be continued for 15 min.
Compliance is checked by inspection. An OLED panel passes this fault test if there is no
emission of flames or molten material during the test. Any hot material from the sample shall
not ignite a tissue paper, as specified in 4.187 of ISO 4046-4:2002, spread below the OLED
panel. Any splintered or broken glass is not accepted.

– 10 – IEC 62868:2014 © IEC 2014
9 Insulation resistance and electric strength
9.1 Insulation resistance
The requirements according to 10.2.1 of IEC 60598-1 apply.
9.2 Electric strength
The requirements according to 10.2.2 of IEC 60598-1 apply.
10 Thermal stress
OLED panels shall sustain thermal stress.
The thermal stress test shall be conducted at a specified ambient temperature in a climate
chamber. The temperature shall be any convenient temperature in the range between 60 °C
and 70 °C. The temperature shall be maintained within ± 2 °C during the stabilization and test.
The OLED panel shall be operated with rated current. After stabilization the test shall be
continued for 60 min.
Compliance is checked by inspection. An OLED panel passes this test, if no failure occurs. In
case of performance failure, an OLED panel is considered to pass this test, if no fire, smoke
or flammable gas is produced. Any splintered or broken glass is not accepted.
11 Creepage distances and clearances
Section 11 of IEC 60598-1 applies to individual OLED panels.
12 Resistance to heat and fire
12.1 Resistance to heat
An OLED panel shall have sufficient heat resistance. The exterior of the insulation material
should have a function of protecting an electric shock and have heat resistance.
External parts of insulating material providing protection against electric shock, and parts of
insulating material retaining live parts in position shall be sufficiently resistant to heat.
The ball pressure test does not have to be applied to plastic parts of an OLED panel which
provide supplementary insulation.
Compliance is checked by the ball pressure test according to13.2.1 of IEC 60598-1.
12.2 Resistance to fire
Parts of insulating material retaining live parts in position, and external parts of insulating
material providing protection against electric shock shall be resistant to flame and ignition.
Compliance is checked by the test of Section 13 of IEC 60598-1 for materials other than
ceramic.
The test specimen is the entire OLED panel.

If the specimen is too small to be tested in a manner mentioned above, the foregoing test
shall apply to separated specimens which are made of the same material and are 30 mm ,
each having a thickness identical to the smallest thickness of the OLED panel.
13 Photobiological safety
OLED products are not expected to reach a level of UV, infrared or blue light hazard that
requires marking. They do not require measurement.
14 Terminals
For screw terminals, the requirements of Section 14 of IEC 60598-1 shall be used, if
applicable.
For screwless terminals, the requirements of Section 15 of IEC 60598-1 shall be used, if
applicable.
15 Information for luminaire design
Information is given in Annex B.

– 12 – IEC 62868:2014 © IEC 2014
Annex A
(informative)
Construction of OLED panels
Figures A.1 to A.4 provide schematic diagrams of OLED tiles and panels.
Encapsulation
Contact ledge
Substrate
(metal film)
IEC
NOTE The front view is given on the left and the rear view on the right. The OLED tile is the most elementary
OLED product consisting of a substrate, encapsulation, OLED stack and metal ledge without a printed circuit board
(PCB), electrical connecting parts, and casing.
Figure A.1 – Schematic diagram of OLED tile for lighting
PCB or f-PCB
Encapsulation
Substrate
Pin (tab) connector or
soldering pad
IEC
NOTE The front view is given on the left and the rear view on the right. The OLED panel (Example 1) consists of
OLED tile and PCB or flexible PCB for electrical contacts, and electrical connecting parts.
Figure A.2 – Schematic diagram of OLED panel (Example 1) for lighting

Rear casing
Connecting
wire
Encapsulation
front casing
Substrate
Front casing
IEC
NOTE The front view is given on the left and the rear view on the right. The OLED panel (Example 2) consists of
an OLED tile, wires and soldering pads for electrical contacts, and an external casing.
Figure A.3 – Schematic diagram of OLED panel (Example 2) for lighting
rear casing
PCB or f-PCB
Front casing Substrate Encapsulation Connector
IEC
NOTE The front view is given on the left and the rear view on the right. The OLED panel (Example 3) consists of
an OLED tile, a PCB or a flexible PCB for electrical contacts, and an external casing.
Figure A.4 – Schematic diagram of OLED panel (Example 3) for lighting

– 14 – IEC 62868:2014 © IEC 2014
Annex B
(informative)
Information for luminaire design
Internal short circuits can pose a risk to users and should be considered when designing
luminaires incorporating OLED panels.
An internal short circuit has a resistance significantly lower than that of the organic
electroluminescent layers. This alters the current distribution through the OLED panel and
usually leads to a significantly increased current density at the location of the internal short
circuit. As a result, (parts of) the OLED panel will no longer emit light.
The internal short circuit typically has a non-zero residual resistance. Due to this residual
resistance, power is consumed in the internal short circuit resulting in significant heat
generation. Local temperatures in excess of 100°C can be observed and are maintained until
the OLED panel is no longer powered.
If a constant current power supply is used, the voltage drop across the OLED will typically be
lowered, reducing total power consumption. If a constant voltage power supply is used, the
current will typically be increased until it is limited by the power supply or until the voltage
drop across the internal short circuit matches that of the OLED panel under normal operation,
generally increasing power consumption significantly.
Temperatures created by a short circuit can be measured for example, by applying a
thermocouple to the OLED panel at the location of the short circuit. Internal short circuits can
be created for this purpose by the procedure described in 6.3. A thermocouple should be
applied after the short is generated but before the OLED panel is powered for the first time.
NOTE Temperatures measured in this way can differ from temperatures that occur in products under fault
conditions as the method of generating an artificial internal short circuit differs from faults in actual products.
Possible risks from internal short circuits include:
– burns or scalds from touching the hot spot;
– ignition of flammable materials in the vicinity of the OLED panel;
– ignition of flammable materials placed on the OLED panel by users;
– faults of other components due to operation under abnormal conditions;
– splinters, melting material etc. covered in 6.3 of this standard.
Luminaire designers should assess the risk that is posed by such an internal short circuit. The
following should be taken into consideration:
– knowledge of users about OLED panel fault conditions compared with conventional lamps
(OLED panels are often touchable in normal operation but may be hot in fault conditions);
– appearance (visibility) of internal short circuit to user;
– accessibility of OLED panel and internal short circuit;
– temperature increase from internal short circuits compared to normal operating
temperatures of the OLED panel;
– temperature generated by internal short circuits and burn thresholds for skin (compare IEC
Guide 117);
– total power dissipated in the internal short circuit.
Adequate measures should be taken to minimize the risk to users.

Annex C
(normative)
Method of provoking internal short circuit
C.1 Method for an OLED panel with glass substrates
An internal short circuit shall be provoked by applying a small solder tip (preheated to
minimum 430 °C) to the glass surface or by laser treatment. The solder tip shall be applied as
short as necessary and shall be removed immediately when a short has been created. In case
the final product of an OLED panel has an external outcoupling system (e.g. outcoupling foil)
or a plastic film, slightly peel off the external layer just enough to expose the glass for
provoking treatment of the internal short circuit and then reattach the peeled off layer to the
glass after the treatment.
C.2 Method for an OLED panel with flexible plastic substrates
In the case of an OLED panel equipped with a flexible plastic substrate, the internal short
circuit shall be provoked by applying vertical pressure on the surface of the panel with round
tip of steel for about 1 s. The temperature of the tip shall be 25 °C ± 5 °C and the radius of
curvature of the round tip shall be 0,5 mm ± 0,05 mm. The force applied on the tip is desirable
to be about 100 N.
C.3 Other methods
Under consideration
– 16 – IEC 62868:2014 © IEC 2014
Annex D
(informative)
Overview of the OLED lighting system
consisting of OLED panel or module
a
OLED panel
a
Controlgear OLED panel
Module
Supply
a
Controlgear OLED panel
Module
Controlgear
a
Controlgear OLED panel
a
In scope if output of controlgear or supply is up to 120 V d.c. or 50 V a.c. at 50 Hz or 60 Hz
IEC
Figure D.1 – Schematic diagram of OLED lighting
system consisting of OLED panel or module

_____________
– 18 – IEC 62868:2014 © IEC 2014

SOMMAIRE
AVANT-PROPOS . 20
1 Domaine d'application . 22
2 Références normatives . 22
3 Termes et définitions . 22
4 Généralités . 24
4.1 Exigences générales . 24
4.2 Exigences générales d'essai . 24
5 Marquage . 24
5.1 Contenu et emplacement . 24
5.2 Durabilité et lisibilité du marquage . 25
6 Construction . 25
6.1 Généralités . 25
6.2 Résistance mécanique . 25
6.3 Court-circuit interne . 25
6.4 Passages de fils. 26
6.5 Résistance aux poussières, aux corps solides et à l'humidité . 26
7 Dangers mécaniques . 26
8 Conditions de défaut . 26
9 Résistance d'isolement et rigidité diélectrique . 27
9.1 Résistance d'isolement . 27
9.2 Rigidité diélectrique . 27
10 Contraintes thermiques . 27
11 Lignes de fuite et distances dans l'air . 27
12 Résistance à la chaleur et au feu . 27
12.1 Résistance à la chaleur . 27
12.2 Résistance au feu . 28
13 Sécurité photobiologique . 28
14 Bornes . 28
15 Informations relatives à la conception des luminaires . 28
Annexe A (informative) Construction de panneaux OLED . 29
Annexe B (informative) Informations relatives à la conception des luminaires . 31
Annexe C (normative) Méthode de déclenchement d'un court-circuit interne . 33
C.1 Méthode pour un panneau OLED avec substrats en verre . 33
C.2 Méthode pour un panneau OLED avec substrats en plastique flexible . 33
C.3 Autres méthodes . 33
Annexe D (informative) Vue d'ensemble du système d'éclairage OLED se
composant d'un panneau ou d'un module OLED . 34

Figure A.1 – Représentation schématique d'une dalle OLED pour l'éclairage . 29
Figure A.2 – Représentation schématique d'un panneau OLED (Exemple 1) pour
l'éclairage .
Figure A.3 – Représentation schématique d'un panneau OLED (Exemple 2) pour
l'éclairage . 30

Figure A.4 – Représentation schématique d'un panneau OLED (Exemple 3) pour
l'éclairage . 30
Figure D.1 – Représentation schématique du système d'éclairage OLED se
composant d'un panneau ou d'un module OLED . 34

Tableau 1 – Contenu et emplacement du marquage . 24

– 20 – IEC 62868:2014 © IEC 2014

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
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PANNEAUX À DIODES ÉLECTROLUMINESCENTES ORGANIQUES (OLED)
DESTINÉS À L’ÉCLAIRAGE GÉNÉRAL – EXIGENCES DE SÉCURITÉ

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (IEC) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC a pour
objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines
de l'électricité et de l'électronique. A cet effet, l’IEC – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des comités d'études, aux
travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec l’IEC, participent également aux
travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de l’IEC concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nati
...