IEC 60695-2-11:2014

Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products (GWEPT)

IEC 60695-2-11:2014 specifies a test method on an end product. It is intended to simulate the effects of thermal stresses produced by an electrically heated source to represent a fire hazard. This test method is used to check that, under defined test conditions, an end product exposed to an electrically heated source has either a limited ability to ignite or, if it ignites, a limited ability to propagate flame. However, the fire hazard analysis, the flammability aspects and the flame spreading to otherproducts are not covered by the present standard. This second edition of IEC 60695-2-11 cancels and replaces the first edition of IEC 60695-2-11 published in 2000. It constitutes a technical revision. The main changes with respect to the previous edition are:
- the Introduction has been added to provide background and how it relates to the Scope,
- the Scope has been modified for greater clarity and reference to basic safety publications,
- numerous terms and definitions relevant to this Standard have been added to Clause 3,
- the application of "small parts" and "insignificant mass" have been introduced and clarified,
- the different types of specimens, how to specify them, and limitations of the test method have been further clarified in Clause 4,
- clarified in Clause 5 the distance to specified layer when unknown,
- the information from Clause 6 has been moved into the test procedure in Clause 8,
- the conditioning of the specified layer and the laboratory ambient test conditions were clarified in Clause 7,
- measurement of the maximum flame height was removed from Clause 9,
- the reference to this test as "GWEPT" was introduced along with an applicable title change and
- Annex A has been revised to reflect current practice by prominent product committees.
Key words: Glowing/hot-wire, Glow wire, Flammability, Fire hazard
This publication is to be read in conjunction with  IEC 60695-2-10:2013.

Essais relatifs aux risques du feu - Partie 2-11: Essais au fil incandescent/chauffant - Méthode d'essai d'inflammabilité pour produits finis (GWEPT)

IEC 60695-2-11:2014 spécifie une méthode d'essai applicable au produit fini. Elle est destinée à simuler l'effet de contraintes thermiques produites par une source chauffée électriquement afin de représenter un danger d'incendie. La présente méthode d'essai permet de vérifier que, dans des conditions d'essai définies, un produit fini exposé à une source chauffée électriquement présente une aptitude limitée à s'enflammer ou, s'il s'enflamme, une aptitude limitée à propager la flamme. Cependant, la présente norme ne traite pas de l'analyse du danger d'incendie, des aspects d'inflammabilité et de propagation de flammes à d'autres produits. Cette deuxième édition de la CEI 60695-2-11 annule et remplace la première édition de la CEI 60695-2-11 publiée en 2000. Elle constitue une révision technique. Les principales modifications apportées par rapport à l'édition précédente sont énumérées ci-dessous:
- l'introduction a été modifiée pour fournir le contexte et montrer la relation avec le domaine d'application,
- modification du domaine d'application pour davantage de clarté, et pour faire référence aux publications fondamentales de sécurité,
- ajout à l'Article 2 de nombreux termes et définitions applicables à la présente Norme,
- introduction et clarification de l'application des "petites pièces" et de la "masse négligeable",
- clarification supplémentaire à l'Article 4 des différents types d'éprouvettes, de la manière de les spécifier et des limitations de la méthode d'essai,
- clarification à l'Article 5 de la distance par rapport à la sous-couche spécifiée, lorsqu'elle n'est pas connue,
- transfert des informations de l'Article 6 dans la procédure d'essai de l'Article 8,
- clarification à l'Article 7 du conditionnement de la sous-couche spécifiée et des conditions d'essai ambiantes de laboratoire,
- suppression de la mesure de la hauteur de flamme maximale de l'Article 9,
- introduction de la référence à cet essai comme essai "GWEPT", et modification du titre en conséquence et
- la révision de l'Annexe A, afin de refléter les pratiques en vigueur au sein des comités de produits clés.
Mots-clés: fil incandescent/chauffant, fil incandescent, inflammabilité, risque du feu
Cette publication doit être lue conjointement avec la CEI 60695-2-10:2013.

General Information

• Status: Published
• Publication Date: 05-Feb-2014
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 13.220.40 - Ignitability and burning behaviour of materials and products
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: TC 89 - Fire hazard testing
• Drafting Committee: WG 12 - TC 89/WG 12
• Current Stage: DELPUB - Deleted Publication
• Start Date: 20-Jul-2018
• Completion Date: 28-Oct-2021

Relations

• Revised: IEC 60695-2-11:2021 - Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end products (GWEPT)
• Effective Date: 05-Sep-2023
• Revises: IEC 60695-2-11:2000/COR1:2001 - Corrigendum 1 - Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products
• Effective Date: 05-Sep-2023
• Revises: 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
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60695-2-11 ®
Edition 2.0 2014-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC SAFETY PUBLICATION
Fire hazard testing –
Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test
method for end-products (GWEPT)

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

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

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

your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
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Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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latest edition, a corrigenda or an amendment might have been published.

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IEC 60695-2-11 ®
Edition 2.0 2014-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC SAFETY PUBLICATION
Fire hazard testing –
Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test

method for end-products (GWEPT)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.220.40, 29.020 ISBN 978-2-8322-1408-4

– 2 – IEC 60695-2-11:2014 RLV © IEC 2014

CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references . 6

3 Terms and definitions . 6
4 Description of test considerations and test specimen selection Test specimens . 9
4.1 General . 9
4.2 Complete end product . 9
4.3 Partial end product (alternative) . 9
4.4 Test considerations and limitations associated with the specimen
configuration . 9
5 Description of the Test apparatus . 10
6 Severities . 11
76 Verification of the temperature measuring system. 11
87 Conditioning . 11
7.1 Conditioning of test specimens . 11
7.2 Conditioning of specified layers . 11
7.3 Testing conditions . 11
9 Initial measurement . 11
108 Test procedure . 11
8.1 General . 12
8.2 Test temperatures . 12
8.3 Number of test specimens . 12
119 Observations and measurements . 12
1210 Evaluation of test results . 13
11 Test report . 13
1312 Information to be given in the relevant specification product standard . 14

Annex A (informative) Guidance for glow wire test Suggested GWEPT temperatures . 16
Bibliography . 17

Figure 1 – Small parts . 10
Figure A.1 – Suggested GWEPT temperatures . 16

Table 1 – Test severities . 11
Table 1 – Test temperatures . 12
Table A.1 – Guidance for glow-wire test . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
FIRE HAZARD TESTING –
Part 2-11: Glowing/hot-wire based test methods –

Glow-wire flammability test method for end-products (GWEPT)

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
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
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
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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.

This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

– 4 – IEC 60695-2-11:2014 RLV © IEC 2014

International Standard IEC 60695-2-11 has been prepared by IEC technical committee 89:
Fire hazard testing.
The text of this standard is based on the following documents:

FDIS Report on voting
89/1197/FDIS 89/1206/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.
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.
This second edition of IEC 60695-2-11 cancels and replaces the first edition of
IEC 60695-2-11 published in 2000. It constitutes a technical revision.
The main changes with respect to the previous edition are listed below:
– The Introduction has been added to provide background and how it relates to the Scope.
– The Scope has been modified for greater clarity and reference to basic safety
publications.
– Numerous terms and definitions relevant to this Standard have been added to Clause 3.
– The application of “small parts” and “insignificant mass” have been introduced and
clarified.
– The different types of specimens, how to specify them, and limitations of the test method
have been further clarified in Clause 4.
– Clarified in Clause 5 the distance to specified layer when unknown.
– The information from Clause 6 has been moved into the test procedure in Clause 8.
– The conditioning of the specified layer and the laboratory ambient test conditions were
clarified in Clause 7.
– Measurement of the maximum flame height was removed from Clause 9.
– The reference to this test as “GWEPT” was introduced along with an applicable title
change.
– Annex A has been revised to reflect current practice by prominent product committees.
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.
INTRODUCTION
The purpose of this Introduction is to provide background regarding the basic guidance that

prompted the preparation of this International Standard and how it relates to the Scope.

In the design of any electrotechnical product, the risk
...

IEC 60695-2-11 ®
Edition 2.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test
method for end-products (GWEPT)

Essais relatifs aux risques du feu –
Partie 2-11: Essais au fil incandescent/chauffant – Méthode d’essai
d’inflammabilité pour produits finis (GWEPT)

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 14
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
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IEC 60695-2-11 ®
Edition 2.0 2014-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ

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

method for end-products (GWEPT)

Essais relatifs aux risques du feu –

Partie 2-11: Essais au fil incandescent/chauffant – Méthode d’essai

d’inflammabilité pour produits finis (GWEPT)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX P
ICS 13.220.40, 29.020 ISBN 978-2-8322-1373-5

– 2 – 60695-2-11 © IEC:2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Test specimens . 8
4.1 General . 8
4.2 Complete end product . 8
4.3 Partial end product (alternative) . 8
4.4 Test considerations and limitations associated with the specimen
configuration . 9
5 Test apparatus . 10
6 Verification of the temperature measuring system . 10
7 Conditioning . 10
7.1 Conditioning of test specimens . 10
7.2 Conditioning of specified layers . 10
7.3 Testing conditions . 10
8 Test procedure . 10
8.1 General . 10
8.2 Test temperatures . 11
8.3 Number of test specimens . 11
9 Observations and measurements . 11
10 Evaluation of test results . 12
11 Test report . 12
12 Information to be given in the relevant product standard . 12
Annex A (informative) Suggested GWEPT temperatures . 13
Bibliography . 14

Figure 1 – Small parts . 9
Figure A.1 – Suggested GWEPT temperatures . 13

Table 1 – Test temperatures . 11

60695-2-11 © IEC:2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 2-11: Glowing/hot-wire based test methods –
Glow-wire flammability test method for end-products (GWEPT)

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
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
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
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
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
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
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 60695-2-11 has been prepared by IEC technical committee 89:
Fire hazard testing.
The text of this standard is based on the following documents:
FDIS Report on voting
89/1197/FDIS 89/1206/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.
It has the status of a basic safety publication in accordance with IEC Guide 104 and
ISO/IEC Guide 51.
...