Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end products (GWEPT) (IEC 60695-2-11:2021)

This part of IEC 60695 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 other products are not covered by this document.
This basic safety publication focusing on safety test method(s) is primarily intended for use by
technical committees in the preparation of safety publications 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.

Prüfungen zur Beurteilung der Brandgefahr - Teil 2-11: Prüfverfahren mit dem Glühdraht - Prüfung mit dem Glühdraht zur Entflammbarkeit von Enderzeugnissen (GWEPT) (IEC 60695-2-11:2021)

Essais relatifs aux risques du feu - Partie 2-11: Essais au fil incandescent/chauffant - Méthode d'essai d'inflammabilité pour produits finis (GWEPT) (IEC 60695-2-11:2021)

IEC 60695-2-11:2021 est disponible sous forme de IEC 60695-2-11:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. L'IEC 60695-2-11:2021 spécifie une méthode d’essai applicable au produit fini. Elle est destinée à simuler les effets des 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, le présent document ne traite pas de l’analyse du danger d'incendie, des aspects d’inflammabilité et de propagation de flammes à d’autres produits. La présente publication fondamentale de sécurité, fondée sur la ou les méthodes d'essai de sécurité, est essentiellement destinée à être utilisée par les comités d’études dans le cadre de l’élaboration de publications de sécurité conformément aux principes établis dans le Guide IEC 104 et le Guide ISO/IEC 51. L’une des responsabilités d’un comité d’études consiste, le cas échéant, à utiliser les publications fondamentales de sécurité dans le cadre de l’élaboration de ses publications. Cette norme doit être utilisée conjointement avec l’IEC 60695-2-10. Cette troisième édition annule et remplace la deuxième édition parue en 2014. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) ajout à l’Article 3 de nombreux termes et définitions applicables au présent document.

Preskušanje požarne ogroženosti - 2-11. del: Preskusne metode z žarilno žico - Preskušanje vnetljivosti končnega proizvoda z žarilno žico (GWEPT) (IEC 60695-2-11:2021)

Ta del standarda IEC 60695 določa preskusno metodo za končni proizvod. Namenjena je poustvarjanju učinkov toplotne preobremenitve, ki jo proizvede električno ogrevani vir, s čimer se ponazori požarna ogroženost. Ta preskusna metoda se uporablja za preverjanje, ali ima pod opredeljenimi preskusnimi pogoji končni proizvod, ki je izpostavljen električno ogrevanem viru, omejeno sposobnost vžiga ali, če se vžge, omejeno sposobnost širjenja plamena. Vendar pa v tem dokumentu niso zajeti analiza požarne ogroženosti, vidiki vnetljivosti in širjenje plamena na druge proizvode. Ta osnovna varnostna publikacija, ki se osredotoča na varnostne preskusne metode, je namenjena predvsem tehničnim odborom za pripravo varnostnih publikacij v skladu z načeli vodil IEC 104 in ISO/IEC 51. Ena od dolžnosti tehničnega odbora je, da med pripravo publikacij uporablja osnovne varnostne publikacije, kadar je to primerno.

General Information

Status
Published
Publication Date
05-Jan-2022
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Dec-2021
Due Date
14-Feb-2022
Completion Date
06-Jan-2022

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SLOVENSKI STANDARD
SIST EN IEC 60695-2-11:2022
01-februar-2022
Nadomešča:
SIST EN 60695-2-11:2014
Preskušanje požarne ogroženosti - 2-11. del: Preskusne metode z žarilno žico -
Preskušanje vnetljivosti končnega proizvoda z žarilno žico (GWEPT) (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) (IEC 60695-2-11:2021)

Prüfungen zur Beurteilung der Brandgefahr - Teil 2-11: Prüfverfahren mit dem Glühdraht

- Prüfung mit dem Glühdraht zur Entflammbarkeit von Enderzeugnissen (GWEPT) (IEC
60695-2-11:2021)

Essais relatifs aux risques du feu - Partie 2-11: Essais au fil incandescent/chauffant -

Méthode d'essai d'inflammabilité pour produits finis (GWEPT) (IEC 60695-2-11:2021)

Ta slovenski standard je istoveten z: EN IEC 60695-2-11:2021
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
29.020 Elektrotehnika na splošno Electrical engineering in
general
SIST EN IEC 60695-2-11:2022 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 60695-2-11:2022
---------------------- Page: 2 ----------------------
SIST EN IEC 60695-2-11:2022
EUROPEAN STANDARD EN IEC 60695-2-11
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2021
ICS 13.220.40; 29.020 Supersedes EN 60695-2-11:2014 and all of its
amendments and corrigenda (if any)
English Version
Fire hazard testing - Part 2-11: Glowing/hot-wire based test
methods - Glow-wire flammability test method for end products
(GWEPT)
(IEC 60695-2-11:2021)

Essais relatifs aux risques du feu - Partie 2-11: Essais au fil Prüfungen zur Beurteilung der Brandgefahr - Teil 2-11:

incandescent/chauffant - Méthode d'essai d'inflammabilité Prüfverfahren mit dem Glühdraht - Prüfung mit dem

pour produits finis (GWEPT) Glühdraht zur Entflammbarkeit von Enderzeugnissen
(IEC 60695-2-11:2021) (GWEPT)
(IEC 60695-2-11:2021)

This European Standard was approved by CENELEC on 2021-12-02. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60695-2-11:2021 E
---------------------- Page: 3 ----------------------
SIST EN IEC 60695-2-11:2022
EN IEC 60695-2-11:2021 (E)
European foreword

The text of document 89/1536/FDIS, future edition 3 of IEC 60695-2-11, prepared by IEC/TC 89 “Fire

hazard testing” was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as

EN IEC 60695-2-11:2021.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2022–09–02

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2024–12–02

document have to be withdrawn

This document supersedes EN 60695-2-11:2014 and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Standard IEC 60695-2-11:2021 was approved by CENELEC as a

European Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards

indicated:
IEC 60695-1-10 NOTE Harmonized as EN 60695-1-10
IEC 60695-1-11 NOTE Harmonized as EN 60695-1-11
IEC 60695-2-12 NOTE Harmonized as EN 60695-2-12
IEC 60695-2-13 NOTE Harmonized as EN IEC 60695-2-13
IEC 60335-1 NOTE Harmonized as EN 60335-1
---------------------- Page: 4 ----------------------
SIST EN IEC 60695-2-11:2022
EN IEC 60695-2-11:2021 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by

(mod), the relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is

available here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60695-2-10 - Fire hazard testing - Part 2–10: EN IEC 60695-2-10 -
Glowing/hot-wire based test methods -
Glow-wire apparatus and common test
procedure
IEC 60695-4 2012 Fire hazard testing - Part 4: Terminology EN 60695-4 2012
concerning fire tests for electrotechnical
products
ISO 13943 2017 Fire safety - Vocabulary EN ISO 13943 2017
---------------------- Page: 5 ----------------------
SIST EN IEC 60695-2-11:2022
---------------------- Page: 6 ----------------------
SIST EN IEC 60695-2-11:2022
IEC 60695-2-11
Edition 3.0 2021-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
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
INTERNATIONALE
ICS 13.220.40; 29.020 ISBN 978-2-8322-1011-0

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 60695-2-11:2022
– 2 – IEC 60695-2-11:2021 © IEC 2021
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) .............................................................................. 9

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 ............................................................................ 11

7.3 Testing conditions ................................................................................................. 11

8 Test procedure .............................................................................................................. 11

8.1 General ................................................................................................................. 11

8.2 Test temperatures ................................................................................................. 11

8.3 Number of test specimens ..................................................................................... 12

9 Observations and measurements ................................................................................... 12

10 Evaluation of test results ............................................................................................... 12

11 Test report ..................................................................................................................... 12

12 Information to be given in the relevant product standard ................................................ 13

Annex A (informative) Suggested GWEPT temperatures ...................................................... 14

Bibliography .......................................................................................................................... 16

Figure 1 – Small parts ........................................................................................................... 10

Figure A.1 – Suggested GWEPT temperatures ..................................................................... 15

Table 1 – Test temperatures ................................................................................................. 11

---------------------- Page: 8 ----------------------
SIST EN IEC 60695-2-11:2022
IEC 60695-2-11:2021 © IEC 2021 – 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.

IEC 60695-2-11 has been prepared by IEC technical committee 89: Fire hazard testing. It is an

International Standard.

This third edition cancels and replaces the second edition published in 2014. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) Numerous terms and definitions relevant to this document have been added to Clause 3.

---------------------- Page: 9 ----------------------
SIST EN IEC 60695-2-11:2022
– 4 – IEC 60695-2-11:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
89/1536/FDIS 89/1544/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.

It has the status of a basic safety publication in accordance with IEC Guide 104.

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

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.
In this standard, the following print types are used:
• terms defined in Clause 3: in bold type

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.

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.
---------------------- Page: 10 ----------------------
SIST EN IEC 60695-2-11:2022
IEC 60695-2-11:2021 © IEC 2021 – 5 –
INTRODUCTION

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 within the design of

component, circuit, and product design, as well as the choice of the 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 60695-1-10 [1] , together with its

companion IEC 60695-1-11 [2], has been developed 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 to:

a) prevent ignition caused by an electrically energized component part, and

b) 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 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 are normally dealt with in the overall fire hazard

assessment.

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

tests, a glowing 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-

2-12 [3] describes a glow-wire flammability index (GWFI) test method for materials, and

IEC 60695-2-13 [4] describes a glow-wire ignition tempera
...

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