IEC 61318:2021

IEC 61318 ®
Edition 4.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Methods for assessment of defects and verification of
performance applicable to tools, devices and equipment

Travaux sous tension – Méthodes d'évaluation des défauts et vérification des
performances applicables aux outils, dispositifs et équipement

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IEC 61318 ®
Edition 4.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Live working – Methods for assessment of defects and verification of

performance applicable to tools, devices and equipment

Travaux sous tension – Méthodes d'évaluation des défauts et vérification des

performances applicables aux outils, dispositifs et équipement

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.260; 29.240.20; 29.260.99 ISBN 978-2-8322-9907-4

– 2 – IEC 61318:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 8
5 Determination of defect type . 8
6 Defects assessment methods . 9
6.1 General . 9
6.2 Testing . 9
6.2.1 General . 9
6.2.2 Type test . 9
6.2.3 Routine test . 9
6.2.4 Sampling test. 10
6.2.5 Acceptance test . 10
6.3 Process documentation . 10
7 Verification methods . 10
7.1 General . 10
7.2 Identification and classification of defects . 10
7.3 Requirements and tests . 10
Annex A (informative) Recommendations for developing test methods . 11
Annex B (informative) Example of defects assessment information tables . 12
B.1 General . 12
B.2 Classification and rationale of defects . 12
B.3 Rationale of classification of defects . 13
Bibliography . 16

Table B.1 – Classification of defects and associated requirements and tests . 12
Table B.2 – Rationale for the classification of defects . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LIVE WORKING –
METHODS FOR ASSESSMENT OF DEFECTS AND
VERIFICATION OF PERFORMANCE APPLICABLE
TO TOOLS, DEVICES AND EQUIPMENT

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
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6) All users should ensure that they have the latest edition of this publication.
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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.
International Standard IEC 61318 has been prepared by IEC technical committee 78: Live
working.
This fourth edition cancels and replaces the third edition published in 2007. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) change of the purpose of the document from a prescriptive testing standard to a standard
assisting the project team in the conformance to respective product standard;
b) introduction of conformance test, record of process, quality control documentation,
adapted to the standard product;
c) change of prescribed sampling procedure to adapted sampling tests to the product
standard;
– 4 – IEC 61318:2021 © IEC 2021
d) suppression of the term “conformity assessment”;
e) Introduction of the term “verification method” replacing “conformity assessment
application”.
The text of this International Standard is based on the following documents:
FDIS Report on voting
78/1339/FDIS 78/1353/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement,
available at www.iec.ch/members_experts/refdocs. The main document types developed by
IEC are described in greater detail at www.iec.ch/standardsdev/publications.
In this document, the following characters are used:
– requirements: roman characters;
– terms defined in Clause 3: italics.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
This document is applied by each IEC Live Working product standard for the purpose of
assessing whether or not each product meets the requirements of the relevant product
standard.
– 6 – IEC 61318:2021 © IEC 2021
LIVE WORKING –
METHODS FOR ASSESSMENT OF DEFECTS AND
VERIFICATION OF PERFORMANCE APPLICABLE
TO TOOLS, DEVICES AND EQUIPMENT

1 Scope
This document defines methods to assess defects and to verify that products after the
manufacturer process meet the requirements of the corresponding product standard.
The principles of assessment of defects for live working products are detailed in this
document to assist product standard developers in prescribing the best means to achieve
suitable quality of every finished tool, device and piece of equipment.
The following elements are not covered by the present document, but are included in each
product standard:
– type tests;
– provisions and description for routine, sampling and acceptance tests;
– identification and classification of defects;
– risk analysis.
This document does not cover conformity assessment of commercial shipments or
certifications.
2 Normative references
There are no normative referenced documents.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
acceptance test
contractual test to prove to the customer that the item meets certain conditions of its
specification
[SOURCE: IEC 60050-151:2001, 151-16-23, modified – The main term "hand-over test" has
been deleted.]
3.2
critical defect
any defect where judgement and experience indicate that it is likely to result in hazardous or
unsafe conditions for individuals using or depending on the product
3.3
harm
physical injury or damage to the health of people, or damage to property or the environment
[SOURCE: ISO IEC Guide 51:2014, 3.1, modified – Addition of "physical".]
3.4
hazard
potential source of harm
Note 1 to entry: The term hazard can be qualified in order to define its origin or the nature of the expected harm
(e.g. electric shock hazard, electric arc hazard, crushing hazard, cutting hazard, toxic hazard, fire hazard, drowning
hazard).
[SOURCE ISO IEC Guide 51:2014, 3.2, modified – Addition of Note 1 to entry.]
3.5
major defect
defect of product, other than critical, that is likely to result in failure, or to reduce significantly
the functionality of the product
3.6
minor defect
defect of product that is not likely to reduce significantly the functionality of the product
3.7
non-conformance
non-fulfilment of a requirement
[SOURCE: ISO 16426:2002, 3.15]
3.8
risk
combination of the probability of occurrence of harm and the severity of that harm
[SOURCE: ISO IEC Guide 51:2014, 3.9, modified – The note 1 to entry was deleted.]
3.9
risk analysis
systematic use of available information to identify hazards and to estimate the risk
[SOURCE: ISO IEC Guide 51:2014, 3.10]
3.10
routine test
test made on each individual item during or after manufacture
[SOURCE: IEC 60050-151:2001, 151-16-17, modified – the term “conformity” was deleted]

– 8 – IEC 61318:2021 © IEC 2021
3.11
sampling plan
combination of sample size(s) to be used and associated lot acceptability criteria
[SOURCE: ISO 2859-1:1999, 3.1.17, modified – Deletion of the notes.]
3.12
sampling test
test on a sample
[SOURCE: IEC 60050-151:2001, 151-16-20]
3.13
type test
test made on one or more items representative of the production
[SOURCE: IEC 60050-151:2001, 151-16-16, modified – the term “conformity”]
3.14
verification
confirmation, through the provision of objective evidence, that specified requirements have
been fulfilled
Note 1 to entry: The term “verified” is used to designate the corresponding status.
Note 2 to entry: Design verification is the application of tests and evaluation to assess that the design meets the
specified requirements.
[SOURCE: ISO 9000:2015, 3.8.12, modified – The Notes to entry have been modified.]
4 General
Principle methods for assessment and verification for live working products are detailed in this
document to assist product standard developers in prescribing the best means to demonstrate
that every finished tool, device and piece of equipment meet the standard requirements.
Non-conformance to product standards may results in defects. Product defects are
categorized into three levels; critical, major and minor defects as defined in Clause 3.
Assessment and verification involve tests, records of processes, sampling plans and quality
control documentation. The required records are determined through risk analysis,
classification of defects and corresponding methods of preventing these defects.
Assessment and verification records shall be kept by the manufacturer for at least five years
and in accordance with national or regional regulations.
5 Determination of defect type
In the application of this document, every significant defect shall be determined and then
classified according to type.
In order to determine the type of defects applicable to each product, it is necessary to
understand the intended functionality. The properties required in the finish product relate to
the application of the product. Where these properties are deficient, the resulting lack of
functionality will have an impact which shall be evaluated.

Critical defects on tools, devices and equipment for live working are not acceptable. Major
defects of tools, devices and equipment for live working are likely to result in failure or in a
significant reduction of functionality, while minor defects do not reduce significantly the
functionality.
The evaluation of impact due to functional or other defects involves a risk analysis. The
ISO/IEC Guide 51 provides a framework for performing risk analysis.
6 Defects assessment methods
6.1 General
The main methods used in product manufacturing to prevent defects and ensure that standard
requirements are met are testing, process documentation and quality assessment. A guide to
developing general test methods (such as alternative test methods) is provided in Annex A.
6.2 Testing
6.2.1 General
Four categories of tests are included within live working product standards:
– type test;
– routine test;
– sampling test;
– acceptance test.
6.2.2 Type test
Type tests are performed on a relatively small number of items which are to be typical of all
products. Tests performed on these few are to determine basic design and functional
capabilities to their mechanical or electrical limits. Significant damage to the test object is
probable.
Type tests often involve rigorous laboratory tests requiring specialized equipment. Products
manufactured to the same specifications and using the same materials are expected to
perform and have the same characteristics as those used in type tests.
While type tests provide design verification, they are not usually suitable to be performed
continuously on production units. To verify some or all of the significant characteristics and
functionality, it may be useful to develop other practicable test methods which could be
applied to a wider number of items.
6.2.3 Routine test
Routine tests demonstrate performance and functionality according to specified levels and are
conducted on each manufactured product. While verifying a level of conformance to standard
requirements, these tests should not degrade or negatively impact the product.
Whenever the standard developer determines routine tests to be necessary those routine
tests should be used to determine critical defects.

– 10 – IEC 61318:2021 © IEC 2021
6.2.4 Sampling test
Sampling tests are performed on either component parts of a product or finished items. These
involve only a prescribed amount or number of items and may involve testing of performance
to any level including destruction. Sampling plan parameters are determined statistically and
shall be followed precisely to yield meaningful results. ISO 2859-1:1999 provides rules to
follow in regard to determine sampling plans for these tests. The adequate acceptable quality
level (AQL) is determined according the risk analysis.
6.2.5 Acceptance test
An acceptance test is a contractual test to prove to the customer that the product meets the
customer’s specification. These tests are performed on a predetermined number of items in
the complete batch of ordered units and are of varying severity.
Acceptance tests may be destructive or potentially damage the product. In this case, the
disposition of the tested products should be considered. The product should be re-built or
destroyed to ensure that worker safety is not jeopardized from use of a damaged product.
6.3 Process documentation
Process documentation is a means of ensuring that all products are manufactured in a
traceable and consistent fashion. In this way, each item produced most exactly replicates
those used in type testing. Where production processes and materials are verified, function
and performance characteristics may be inferred in the finished product.
7 Verification methods
7.1 General
Verification methods involve the systematic means of identifying and preventing possible
product defects and ensuring that manufactured products meet the requirements of the
associated product standard.
Following a risk analysis, information pertaining to verification method including a rationale of
the defects (critical, major and minor) shall be provided in normative annexes of each product
standard. This information is best presented in tables where each defect is identified and
classified along with the required tests and relevant subclauses. An example presentation of
defects assessment information requirements for IEC 61481-2:2014 is presented in Annex B.
7.2 Identification and classification of defects
The classification of possible defects shall be based on a risk analysis, considering:
– the severity of the harm;
– and the probability of occurrence of the harm.
7.3 Requirements and tests
Each live working product standard provides appropriate means for ensuring that all
significant features of the product are measurable and verifiable. These include tests,
documentation, processes and other requirements detailed in each product standard.
For each defect identified, an explanation or appropriate clause or subclause of the product
standard shall be identified as shown in Table B.1 and Table B.2.

Annex A
(informative)
Recommendations for developing test methods
The development of test methods should consider the elements of risk analysis of possible
product defects provided by the product standard. These include:
– description of the requirements the product has to meet;
– determination of the classification of defects (critical, major, minor);
– determination of relevant means (test, inspection, calculation, etc.) of addressing
requirements based on the classification of defects.
Test methods developed should provide consistent results and ensure the reproducibility of
the results within specified tolerances.
Non-destructive test methods or other means should be chosen whenever they can replace
destructive test methods while providing the same level of quality.
Test methods typically describe the following:
– functional characteristic to be tested;
– reagent and/or material;
– apparatus, test set-up, measurement instrument;
– preparation, preconditioning and preservation of test pieces;
– procedure;
– expression of results;
– method of calculation and precision of the test method;
– measurement uncertainty.
– 12 – IEC 61318:2021 © IEC 2021
Annex B
(informative)
Example of defects assessment information tables
B.1 General
These examples taken from IEC 61481-2:2014 are provided to demonstrate the proper form of
presentation of defects assessment information required for each product standard.
Types of defects for phase comparators are identified, classified (critical, major or minor) and
associated with the appropriate subclause where the requirements and tests are described.
B.2 Classification and rationale of defects
Table B.1 is derived from Table D.1 of IEC 61481-2:2014.
Table B.1 – Classification of defects and associated requirements and tests
Requirements of IEC 61481-2:2014 Type of defects Test of
IEC 61481-
Critical Major Minor
2:2014
4.4.3 Minimum length of the insulating element for a X  5.4.1.2
phase comparator as a complete device
4.5 Correctness of the marking of the phase X  5.4.1.1
comparator
4.3.5.2 Leakage current along the insulating element of X  5.3.5.2
a phase comparator as a complete device
4.2.1 Clear indication of the status of the phase X  5.2.2
relationship
b
4.2.1.3 Effect of interference fields (continuous X

indication)
Protection against bridging for indoor/outdoor
4.3.2 X  5.3.2
type phase comparator
a
Protection against bridging for outdoor type X
5.3.3
phase comparator
4.3.3 Spark resistance X 5.3.4.3
4.2.5 Response time for phase comparators with one X
active signal
5.2.7.2
Response time for phase comparators with two  X
active signals
4.2.4 Frequency dependence X  5.2.6.2
4.2.3 Temperature and humidity dependence of the X  5.4.7.2
indication
4.2.2 Clear perceptibility: only visual X 5.2.5.1.2
Clear perceptibility: visual and audible  X 5.2.5.2.2
4.4.5 Vibration resistance X  5.4.4.2
4.4.6 Drop resistance X  5.4.5.2
4.4.7 Shock resistance X  5.4.6.2
4.2.7 Functioning of the testing element X 5.2.9.2
4.2.6 Power source dependability X  5.2.8.2
4.2.1.6 EMC X  5.2.3.2
Requirements of IEC 61481-2:2014 Type of defects Test of
Critical Major Minor IEC 61481-
2:2014
4.2.8 Time rating X  5.2.10.2
4.5 Marking: availability and durability X 5.4.1.1
5.4.8
4.4.4 Grip force and deflection  X 5.4.2
4.6 Instructions for use (availability) X  5.4.1.1
4.3.1 Insulating material for tubes and rods of phase X  5.3.1.2
comparator as complete device
4.3.4 Resistive element X  5.2.10.2
4.3.6 Circuit current X  5.3.7.2
4.3.7 Indicator casing (dielectric property) X  5.3.2
a
5.3.3
4.3.8 Insulation of connecting lead X  5.3.6.2
4.4.3
4.4.3 Robustness of connecting lead and connections X  5.4.3.2
a
For outdoor type phase comparators the tests are performed in dry conditions only.
b
At the production level there is no need to perform a test associated with this requirement. The confirmation
of the clear indication according to 5.2.2 confirms the correctness of the performance of the device to give a
correct indication under interference field.

B.3 Rationale of classification of defects
Table B.2 is derived from Table F.1 of IEC 61481-2:2014.
Table B.2 – Rationale for the classification of defects
Justification for the associated defect
Requirement of IEC 61481-2:2014
specified in Annex D of IEC 61481-2:2014
Critical defects
Minimum length of the insulating element A shorter length of the insulating element can result in an
(phase comparator as a complete device) unacceptable value of leakage current and/or can lead to a
breakdown during use.
Leakage current (phase comparator as a The insulating element of a phase comparator as a complete
complete device) device is the protection of the worker during each use of the
device. On a brand-new device, a value of leakage current
above the limit is a hazard for the initial worker.
Clear indication of the status of the phase If the phase comparator gives a false indication (for example
relationship "Correct" instead of "Incorrect") it can lead to a hazardous
situation.
Effect of interference fields (continuous If the phase comparator gives a false indication (for example
indication) "Correct" instead of "Incorrect") it can lead to a hazardous
situation.
Electromagnetic – Immunity If the phase comparator does not fulfil the EMC requirement, it
can give wrong indications.
Temperature and humidity dependence of the If the phase comparator does not work properly in its
indication temperature range, it could give a false indication and lead to a
hazardous situation for the worker.
Frequency dependence If the phase comparator does not work properly in its frequency
range, it can give a false indication and lead to a hazardous
situation for the worker.
Response time only for phase comparators If for any reasons the response time becomes longer than 1 s,
with one active signal the worker could conclude a non-answer as an indication. This
could lead to a hazardous situation for the worker.

– 14 – IEC 61318:2021 © IEC 2021
Requirement of IEC 61481-2:2014 Justification for the associated defect
specified in Annex D of IEC 61481-2:2014
Power source dependability The purpose of this requirement is to ensure that the phase
comparator will indicate properly until the built-in power source
is exhausted. If not, it could give an incorrect indication and
lead to a hazardous situation.
Insulating material for tubes and rods of The good dielectric performance of the insulating material for
phase comparator as complete device tubes and rods used for complete devices guarantees the
protection of the worker during each use of the device.
Protection against bridging This would be hazardous for the user to have the phase
comparator initiate a fault between two parts at different
potential. Of course, the users would not be in the direct circuit
of the arc but may be close enough to suffer of the arc by-
products.
Resistive element If the resistors are not adequately rated with respect to voltage
and power that can lead to hazardous situation (i.e. initiate a
fault between two phases) or indicate a false indication (i.e.
“correct phase relationship” in case of an open circuit)
Circuit current in case of misuse If the current is not limited to 3,5 mA it could lead to a
hazardous situation in case of misuse.
Indicator casing If the material and dimensioning of the indicator casing are not
adequately rated with respect to voltage and power that can
lead to a hazardous situation.
Insulation of connecting lead If the insulation of the lead is not ensured it could lead to
hazardous situation for the workers.
For example: In case of bad insulation along a connecting lead
making contact with parts of the installation at different
potentials there is a possibility of short-circuit.
Marking – correctness An incorrect marking, for example a wrong nominal voltage or a
wrong operational class, could result in a hazardous situation.
Time rating If a phase comparator does not respect the time rating, it could
result in a short circuit (example: defect of a resistor) and can
lead to hazardous situation.
Circuit current in case of a defect of the If the current is higher than 3,5 mA, in the case of a defect of
connecting lead the connecting lead it could lead to a hazardous situation.
Robustness of connecting lead and If the connecting lead is damaged it could give an incorrect
connections indication and can lead to a hazardous indication.
Vibration resistance If a brand-new device does not have a good mechanical
performance to drop, shock and vibration, it can lead to internal
Drop resistance
defect which can cause hazardous situations.
Shock resistance
Major defects
Clear perceptibility: only visual If the worker cannot see the visual indication, he cannot
conclude.
Testing element (non-functioning) If the testing element does not function, the worker will become
aware of that during the test. This results in a non availability of
the phase comparator.
Instructions for use A phase comparator without its instructions for use is an
incomplete product and should not be used.
Protection against sparking If a phase comparator does not respect this requirement, some
elements could be destroyed. The device does not work any
more. That reduces significantly the functionality of the product.
Marking: availability and durability If the marking is not available or is impaired the worker will not
use the phase comparator.
Requirement of IEC 61481-2:2014 Justification for the associated defect
specified in Annex D of IEC 61481-2:2014
Minor defects
Clear perceptibility: visual and audible We can consider that there is always one active signal
operational and the operator can conclude. It does not affect
significantly the functionality of the device.
Response time for phase comparators with For these types of phase comparator, a “non-response” can
two active signals never be considered as an indication. The worker will conclude
something, only when the device gives an indication. There is
no misunderstanding.
Grip force and deflection Even if the grip force and the deflection do not fulfil the
requirements, it does not reduce significantly the functionality
of the product.
– 16 – IEC 61318:2021 © IEC 2021
Bibliography
IEC 60050-151:2001, International Electrotechnical Vocabulary (IEV) – Part 151: Electrical
and magnetic devices
IEC 61481-2:2014, Live working – Phase comparators – Part 2: Resistive type to be used for
voltages from 1 kV to 36 kV a.c.
ISO IEC 17000:2004, Conformity assessment – Vocabulary and general principles
ISO IEC Guide 51:2014, Safety aspects – Guidelines for their inclusion in standards
ISO 2859-1:1999, Sampling procedures for inspection by attributes – Part 1: Sampling
schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 9000:2015, Quality management systems – Fundamentals and vocabulary
ISO 16426:2002, Fasteners – Quality assurance system

____________
-18 – IEC 61318:2021 © IEC 2021
SOMMAIRE
SOMMAIRE . 18
AVANT-PROPOS . 19
INTRODUCTION . 21
1 Domaine d’application . 22
2 Références normatives . 22
3 Termes et définitions . 22
4 Généralités . 24
5 Détermination du type de défauts . 24
6 Méthodes d’évaluation des défauts . 25
6.1 Généralités . 25
6.2 Essais . 25
6.2.1 Généralités . 25
6.2.2 Essai de type . 25
6.2.3 Essai individuel de série . 25
6.2.4 Essai sur prélèvement . 26
6.2.5 Essai de réception . 26
6.3 Documentation du processus . 26
7 Méthodes de vérification . 26
7.1 Généralités . 26
7.2 Identification et classification des défauts . 26
7.3 Exigences et essais . 27
Annexe A (informative) Recommandations pour le développement de méthodes
d'essai . 28
Annexe B (informative) Exemple de tableau d'informations sur l'évaluation des défauts . 29
B.1 Généralités . 29
B.2 Classification et justification des défauts . 29
B.3 Justification de la classification des défauts. 30
Bibliographie . 33

Tableau B.1 – Classification des défauts et exigences et essais associés . 29
Tableau B.2 – Justifications relatives à la classification des défauts . 30

COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
TRAVAUX SOUS TENSION –
MÉTHODES D'ÉVALUATION DES DÉFAUTS ET VÉRIFICATION DES
PERFORMANCES APPLICABLES
AUX OUTILS, DISPOSITIFS ET ÉQUIPEMENTS

AVANT-PROPOS
1) La Commission Électrotechnique 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 nationaux de l’IEC intéressés
sont représentés dans chaque comité d’études.
3) Les Publications de l’IEC se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l’IEC
s'assure de l'exactitude du contenu technique de ses publications; l’IEC 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 l’IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l’IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l’IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) L’IEC 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 l’IEC. L’IEC 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 l’IEC, à ses administra
...