IEC 60695-2-13:2010

IEC 60695-2-13 ®
Edition 2.1 2014-02
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition
temperature (GWIT) test method for materials

Essais relatifs aux risques du feu –
Partie 2-13: Essais au fil incandescent/chauffant – Méthode d’essai de
température d’allumabilité au fil incandescent (GWIT) pour matériaux

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IEC 60695-2-13 ®
Edition 2.1 2014-02
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition

temperature (GWIT) test method for materials

Essais relatifs aux risques du feu –

Partie 2-13: Essais au fil incandescent/chauffant – Méthode d’essai de

température d’allumabilité au fil incandescent (GWIT) pour matériaux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40, 29.020 ISBN 978-2-8322-1397-1

IEC 60695-2-13 ®
Edition 2.1 2014-02
REDLINE VERSION
VERSION REDLINE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

Fire hazard testing –
Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition
temperature (GWIT) test method for materials

Essais relatifs aux risques du feu –
Partie 2-13: Essais au fil incandescent/chauffant – Méthode d’essai de
température d’allumabilité au fil incandescent (GWIT) pour matériaux

– 2 – IEC 60695-2-13:2010
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CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references. 6

3 Terms and definitions . 7

4 Test specimens . 8

4.1 Test specimen preparation . 8

4.2 Test specimen dimensions . 8
4.3 Testing ranges in formulations . 8
4.3.1 General . 8
4.3.2 Density, melt flow, and filler/reinforcement . 8
4.3.3 Colour . 9
5 Apparatus . 9
6 Temperature measuring system verification . 9
7 Conditioning and test conditions . 9
7.1 Conditioning of test specimens . 9
7.2 Testing conditions. 9
8 Test procedure . 9
8.1 General . 9
8.2 Initial test temperatures . 9
8.3 Test temperatures . 10
9 Observations and measurements . 10
9.1 General . 10
9.2 Initial observations . 10
9.3 Test observations . 11
10 Evaluation of test results . 11
10.1 Test criteria . 11
10.2 Glow-wire ignition temperature . 11
11 Test report . 12
Bibliography . 13

Table 1 – Initial test temperatures . 10

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INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
FIRE HAZARD TESTING –
Part 2-13: Glowing/hot-wire based test methods –

Glow-wire ignition temperature (GWIT) test method for materials

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
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
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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.

This Consolidated version of IEC 60695-2-13 bears the edition number 2.1. It consists of
the second edition (2010-10) [documents 89/1018/FDIS and 89/1035/RVD] and its
amendment 1 (2014-02) [documents 89/1199/FDIS and 89/1208/RVD]. The technical
content is identical to the base edition and its amendment.
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions and deletions are displayed in red, with deletions
being struck through. A separate Final version with all changes accepted is available in
this publication.
This publication has been prepared for user convenience.

– 4 – IEC 60695-2-13:2010
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International Standard IEC 60695-2-13 has been prepared by technical committee 89: Fire

hazard testing.
It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC

Guide 51. This standard is to be used in conjunction with IEC 60695-2-10.

The main changes with respect to the previous edition are listed below:

– modified title;
– addition of an Introduction;

– clarification of Scope;
– expansion of Clause 2: Normative references;
– expansion of Clause 3;
– revision of Clause 4 to alignment with the IEC 60695-11 series to introduce guidance on
test programs for material variations;
– clarification of Clause 8: Conditioning (now Clause 7);
– deletion of Clause 9: Initial measurement;
– expansion of Clause 10: Test procedures (now Clause 8);
– expansion of Clause 11: Observation and measurement (now Clause 9);
– clarification of Clause 12: Evaluation of test results (now Clause 10);
– expansion of Clause 13: Test report (now Clause 11).
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing can be
found on the IEC web site.
Part 2 consists of the following parts:
Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test
procedure
Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end-
products
Part 2-12: Glowing/hot-wire based test methods – Glow-wire flammability index (GWFI) test
method for materials
Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition temperature (GWIT) test
method for materials
The committee has decided that the contents of the base publication and its amendment 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.
The contents of the corrigendum of February 2012 have been included in this copy.
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 publication using a colour printer.

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INTRODUCTION
In electrotechnical equipment, overheated metal parts can act as ignition sources. In glow-wire

tests an electrically heated wire is used to simulate such an ignition source.

IEC 60695-2-10 describes a glow-wire test apparatus and common test procedure, IEC 60695-

2-11 describes a glow-wire flammability test for end products, and IEC 60695-2-12 describes a

glow-wire flammability index test method for materials.

In the design of any electrotechnical product, the risk of fire and the potential hazards

associated with fire need to be considered. In this respect the objective of component, circuit,

and product design, as well as the choice of materials, is to reduce to acceptable levels the
potential risks of fire during normal operating conditions, reasonable foreseeable abnormal
use, malfunction and/or failure. IEC/TC 89 has developed IEC 60695-1-10, together with its
companion, IEC 60695-1-11, to provide guidance on how this is to be accomplished.
The primary aims of IEC 60695-1-10 and IEC 60695-1-11 are to provide guidance on how:
a) to prevent ignition caused by an electrically energized component part, and
b) to confine any resulting fire within the bounds of the enclosure of the electrotechnical
product in the event of ignition.
Secondary aims of IEC 60695-1-10 and IEC 60695-1-11 include the minimization of any flame
spread beyond the product’s enclosure and the minimization of the harmful effects of fire
effluents such as heat, smoke, toxicity and/or corrosivity.
Fires involving electrotechnical products can also be initiated from external non-electrical
sources. Considerations of this nature should be dealt with in the overall fire risk hazard
assessment.
This part of IEC 60695 describes a glow-wire ignition temperature test method for materials. It
should be used to measure, describe, and rank the properties of materials in response to heat
caused by contact with an electrically heated wire under controlled laboratory conditions. This
may be useful for the evaluation of materials for use in products that may be exposed to
excess thermal stress such as a fault current flowing through a wire, overloading of components,
and/or bad connections. It should not be used to solely describe or appraise the fire hazard or
fire risk of materials, products, or assemblies under actual fire conditions. However, results of
this test may be used as elements of a fire risk hazard assessment which takes into account all
of the factors which are pertinent to a fire hazard assessment of a particular end use.
This International Standard may involve hazardous materials, operations, and equipment. It
does not purport to address all of the safety problems associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety and health practices

and determine the applicability of regulatory limitations prior to use.

– 6 – IEC 60695-2-13:2010
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FIRE HAZARD TESTING –
Part 2-13: Glowing/hot-wire based test methods –

Glow-wire ignition temperature (GWIT) test method for materials

1 Scope
This part of IEC 60695 specifies the details of the glow-wire test to be applied to test
specimens of solid electrical insulating materials or other solid materials for ignitability testing
to determine the glow-wire ignition temperature (GWIT).
The GWIT is the temperature which is 25 K (or 30 K) higher than the maximum test
temperature, determined during this standardized procedure, at which the tested material
a) does not ignite, or
b) if sustained and continuous flaming combustion does not occur for a time longer than 5 s
for any single flame event and the specimen is not totally consumed.
This test is a materials test carried out on a series of standard test specimens. The data
obtained, along with data from the glow-wire flammability index (GWFI) test method for
materials, IEC 60695-2-12, can then be used in a preselection process in accordance with
IEC 60695-1-30 to judge the ability of materials to meet the requirements of IEC 60695-2-11.
NOTE As an outcome of conducting a fire hazard assessment, an appropriate series of preselection flammability
and ignition tests may allow a reduction of end product testing.
This basic safety publication is intended for use by technical committees in the preparation of
standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
basic safety publications in the preparation of its publications. The requirements, test methods
or test conditions of this basic safety publication will not apply unless specifically referred to or
included in the relevant publications.
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 60695-1-30:2008, Fire hazard testing – Part 1.30: Guidance for assessing the fire hazard
of electrotechnical products – Preselection testing process – General guidelines
IEC 60695-2-10:2000, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedure
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products
IEC 60695-2-12, Fire hazard testing – Part 2-12: Glowing/hot-wire based test methods – Glow-
wire flammability index (GWFI) test method for materials
IEC Guide 104:1997, The preparation of safety publications and the use of basic safety
publications and group safety publications

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ISO/IEC Guide 51:1999, Safety aspects – Guidelines for inclusion in standards

ISO/IEC 13943:2008, Fire safety – Vocabulary

ISO 291:2008, Plastics – Standard atmospheres for conditioning and testing

ISO 293:2004, Plastics – Compression moulding of test specimens of thermoplastic materials

ISO 294 (all parts), Plastics – Injection moulding of test specimens of thermoplastic materials

ISO 295:2004, Plastics – Compression moulding of test specimens of thermosetting materials

3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 13943, some of
which are reproduced below for the user’s convenience, as well as the following apply.
3.1
combustion
exothermic reaction of a substance with an oxidizing agent
NOTE Combustion generally emits fire effluent accompanied by flames and/or glowing.
[ISO/IEC 13943: 2008, definition 4.46]
3.2
flame, noun
rapid, self-sustaining, sub-sonic propagation of combustion in a gaseous medium, usually with
emission of light
[ISO/IEC 13943: 2008, definition 4.133]
3.3
flammability
ability of a material or product to burn with a flame under specified conditions
[ISO/IEC 13943: 2008, definition 4.151]
3.4
glowing, noun
luminosity caused by heat
[ISO/IEC 13943:2008, definition 4.168]
3.5
glowing combustion
combustion of a material in the solid phase without flame but with emission of light from the
combustion zone
[ISO/IEC 13943:2008, definition 4.169]
3.6
ignitability
ease of ignition
measure of the ease with which a test specimen can be ignited under specified conditions
[ISO/IEC 13943:2008, definition 4.182]

– 8 – IEC 60695-2-13:2010
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3.7
ignition
sustained ignition (deprecated)

initiation of combustion

[ISO/IEC 13943:2008, definition 4.187]

3.8
ignition
sustained ignition (deprecated)

initiation of sustained flame

[ISO/IEC 13943:2008, definition 4.188]
3.9
preselection
process of assessing and choosing candidate materials, components or sub-assemblies for
making an end-product
[IEC 60695-1-30:2008, definition 3.2]
4 Test specimens
4.1 Test specimen preparation
Test specimens shall be fabricated using the appropriate ISO method, e.g. casting and
injection moulding in accordance with the ISO 294 series, compression moulding in accordance
with ISO 293 or ISO 295, or transfer moulding to the necessary shape. Where this is not
possible, the test specimen shall be cut and/or sliced from a representative sample of the
material (for example, produced using the same fabrication process as would be used to mould
a part of a product).
After any fabrication or cutting operation, care shall be taken to remove all dust and any
particles from the surface; cut edges shall be fine sanded to a smooth finish.
4.2 Test specimen dimensions
The dimensions of the planar sections of the test specimens shall be at least 60 mm in length
and 60 mm in width (measured inside the clamping areas) and shall be provided in all
thicknesses under consideration. The preferred values include 0,1 mm ± 0,02 mm, 0,2 mm ±
0,02 mm, 0,4 mm ± 0,05 mm, 0,75 mm ± 0,1 mm, 1,5 mm ± 0,15 mm, 3,0 mm ± 0,2 mm, or
6,0 mm ± 0,4 mm.
NOTE A set of 15 30 test specimens per thickness will, in general, be adequate to concurrently establish the
GWIT and the glow-wire flammability index, GWFI (See IEC 60695-2-12).
4.3 Testing ranges in formulations
4.3.1 General
The results of tests carried out on test specimen sets of different colour, thickness, density,
molecular mass, anisotropic type/direction, additives, fillers, and/or reinforcements can vary.
When agreed between involved parties, the test programs outlined in 4.3.2 and 4.3.3 may be
employed in order to evaluate these variations.
4.3.2 Density, melt flow, and filler/reinforcement
Test specimens covering all combinations of minimum and maximum levels of density, melt
flows and filler/reinforcement content may be provided and considered representative of the
range if the test results yield the same GWIT. If the test results do not yield the same GWIT for
all test specimens representing the range, evaluation shall be limited to the materials with the

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specific levels of density, melt flows and filler/reinforcement tested. In addition, test specimens

with intermediate density, melt flows, and filler/reinforcement content shall be tested to

determine the representative range for each GWIT determination. However, as an alternative,

the least favourable performance of the specific levels of density, melt flows and

filler/reinforcement tested may be considered representative of intermediate levels without
additional testing.
4.3.3 Colour
When evaluating a range of colours, test specimens that

a) contain no colouring,
b) contain the highest level of organic pigments/colorants/dyes and/or carbon black,
c) contain the highest level of inorganic pigments, and
d) contain pigments/colorants/dyes which are known to adversely affect flammability
characteristics
are considered representative of the colour range if the test results yield the same GWIT.
5 Apparatus
The description of the test apparatus is specified in Clause 5 of IEC 60695-2-10. The reference
to a specified layer does not apply.
6 Temperature measuring system verification
The method of verification of the temperature measuring system is specified in 6.2 of
IEC 60695-2-10.
7 Conditioning and test conditions
7.1 Conditioning of test specimens
The test specimens shall be conditioned for a minimum of 48 h at 23 °C ± 2 °C and at a
relative humidity between 40 % and 60 %. Once removed from the conditioning atmosphere,
the test specimens shall be tested within 4 h (see ISO 291, Clause 6, Table 2, Class 2).
7.2 Testing conditions
The test specimens shall be tested in a laboratory atmosphere having a temperature of 25 °C ±

10 °C between 15 °C and 35 °C and at a relative humidity between 45 % and less than or
equal 75 %.
8 Test procedure
8.1 General
The test specimens shall be identified and examined visually.
The general test procedure shall be as specified in Clause 8 of IEC 60695-2-10.
8.2 Initial test temperatures
The glow-wire is heated to one of the initial test temperatures specified in Table 1, which is
considered to be just high enough to cause ignition. If unknown, the initial test temperature
shall not exceed 650 °C.
– 10 – IEC 60695-2-13:2010
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Table 1 – Initial test temperatures

Initial test Tolerances
temperature
K
°C
±10
±10
600 ±10
±10
±10
±10
±15
±15
±15
±15
8.3 Test temperatures
A set of three test specimens shall be prepared for testing at a chosen test temperature.
If one of the three test specimens fails to withstand the test criteria as defined in 10.1, the test
shall be repeated with three new test specimens at a test temperature preferably 50 K (60 K for
960 °C) lower.
If the three test specimens withstands the test criteria as defined in 10.1, the test shall be
repeated with three new test specimens at a test temperature preferably 50 K (60 K for 900 °C)
higher.
Repeat the tests with three new test specimens each time and reduce the interval of test
temperatures to 25 K (30 K for 960 °C) in the final approach to determine the maximum test
temperature at which all three test specimen withstand the test criteria as defined in 10.1.
However, there is no need to go to the higher temperature if it has already been determined
that at least one of the three test specimen will not withstand the test criteria as defined in
10.1.
NOTE 1 The minimum test temperature is 500 °C and the maximum test temperature is 960 °C.

NOTE 2 It is recommended to start with a temperature of 650 °C.
9 Observations and measurements
9.1 General
The following observations and measurements shall be recorded.
9.2 Initial observations
After identifying and visually inspecting the test specimens, the following items shall be
recorded:
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a) a description of the tested material, including thickness, colour, type and manufacturer,

b) a description of the method for the preparation of the test specimens, if available,

c) the direction of any anisotropy, if known, relative to the dimensions of the test specimen,
and
d) the pre-test conditioning of the test specimens.

9.3 Test observations
During the time of application of the glow-wire, and during a further period of 5 s, the test

specimen shall be observed and the following shall be recorded:

a) the time, t t , of the longest sustained and continuous flaming and/or glowing combustion
E
E
observed (to the nearest 0,5 s);
b) the test temperatures from Clause 8,
c) whether or not the glow-wire penetrated through the test specimen;
d) total consumption of the test specimen, if this occurs; and
e) additional observations that may be agreed to by both parties.
10 Evaluation of test results
10.1 Test criteria
The test specimen is considered to have withstood this test
a) if there is no ignition, or
b) if sustained and continuous flaming combustion does not occur for a time longer than 5 s
for any single flame event and the specimen is not totally consumed.
NOTE If the measured value is 5,2 s, this should be recorded as 5,0 s. If the measured value is 5,3 s, this should
be recorded as 5,5 s.
10.2 Glow-wire ignition temperature
The GWIT is the temperature which is 25 K (30 K for 900 °C and 930 °C) higher than the
maximum test temperature at which three test specimens at the relevant thickness withstand
the test criteria as defined in 10.1.
The GWIT shall be reported in the following manner:
for example, for a test specimen of 3,0 mm thickness and a maximum test temperature which
does not cause ignition at 825 °C:

GWIT: 850 / 3,0
In case of different GWITs per thickness, these GWITs shall be reported per thickness.
In case the same result is achieved at minimum and maximum thickness the GWIT shall be
reported as follows:
GWIT: 775 / 0,75 - 3,00
In case the test series results in no ignition using the test temperature of 960 ºC, the GWIT
shall be reported as follows:
GWIT: > 960 / thickness
In those cases where the GWIT is to be utilized over a range of thicknesses, it may be
appropriate to consider the GWIT at the minimum and maximum thickness and the other
preferred thicknesses in the range.

– 12 – IEC 60695-2-13:2010
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The GWIT representative for a range of thicknesses shall be reported in the following manner:

for example, for a range of thicknesses of 0,75 mm up to 3,0 mm and a maximum test

temperature which does not cause ignition at 750 °C:

GWIT: 775 / 0,75 – 3,0
11 Test report
The test report shall include the following information:

a) a reference to this International Standard;
b) the test temperatures from Clause 8;
c) the observations and measurements from Clause 9; and
d) the GWIT from 10.2.
+AMD1:2014 CSV  IEC 2014
Bibliography
IEC 60695-1-10, Fire hazard testing – Part 1-10: Guidance for assessing the fire hazard of

electrotechnical products – General guidelines

IEC 60695-1-11, Fire hazard testing – Part 1-11: Guidance for assessing the fire hazard of

electrotechnical products – Fire hazard assessment

IEC 60695-2-11, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods – Glow-

wire flammability test method for end-products

IEC 60695-11 (all parts), Fire hazard testing – Part 11:Test flames
ISO/IEC 13943:2008, Fire safety – Vocabulary

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– 14 – IEC 60695-2-13:2010
+AMD1:2014 CSV  IEC 2014
SOMMAIRE
AVANT-PROPOS . 15

INTRODUCTION . 17

1 Domaine d’application . 18

2 Références normatives . 18

3 Termes et définitions . 19

4 Eprouvettes . 20

4.1 Préparation des éprouvettes d’essai . 20

4.2 Dimensions de l'éprouvette d’essai . 20
4.3 Plages d’essai dans les formules . 21
4.3.1 Généralités . 21
4.3.2 Densité, indice de fluidité et charge/renfort . 21
4.3.3 Couleur . 21
5 Appareillage . 21
6 Vérification du système de mesure de température . 21
7 Conditionnement et conditions d'essai . 21
7.1 Conditionnement des éprouvettes d’essai . 21
7.2 Conditions d'essai . 22
8 Mode opératoire. 22
8.1 Généralités . 22
8.2 Températures d'essai initiales . 22
8.3 Températures d’essai . 22
9 Observations et mesures . 23
9.1 Généralités . 23
9.2 Observations initiales. 23
9.3 Observations d'essai . 23
10 Evaluation des résultats de l’essai . 23
10.1 Critères d'essai . 23
10.2 Température d’allumage au fil incandescent . 23
11 Rapport d’essai . 24
Bibliographie . 25

Tableau 1 – Températures d'essai initiales . 22

+AMD1:2014 CSV  IEC 2014
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE

____________
ESSAIS RELATIFS AUX RISQUES DU FEU –

Partie 2-13: Essais au fil incandescent/chauffant –

Méthode d’essai de température d’allumabilité

au fil incandescent (GWIT) pour matériaux

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI 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, la CEI – 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 la CEI"). 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 la CEI, participent également aux
travaux. La CEI 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 la CEI concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de la CEI
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de la CEI se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de la CEI. Tous les efforts raisonnables sont entrepris afin que la CEI
s'assure de l'exactitude du contenu technique de ses publications; la CEI ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de la CEI s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de la CEI dans leurs publications
nationales et régionales. Toutes divergences entre toutes Publications de la CEI et toutes publications
nationales ou régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) La CEI elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants
fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de
conformité de la CEI. La CEI n'est responsable d'aucun des services effectués par les organismes de
certification indépendants.
6) Tous les utilisateurs doivent s'assurer qu'ils sont en possession de la dernière édition de cette publication.
7) Aucune responsabilité ne doit être imputée à la CEI, à ses administrateurs, employés, auxiliaires ou
mandataires, y compris ses experts particuliers et les membres de ses comités d'études et des Comités
nationaux de la CEI, pour tout préjudice causé en cas de dommages corporels et matériels, ou de tout autre
dommage de quelque nature que ce soit, directe ou indirecte, ou pour supporter les coûts (y compris les frais
de justice) et les dépenses découlant de la publication ou de l'utilisation de cette Publication de la CEI ou de
toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une applicatio
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