Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance

Specifies a needle-flame test to simulate the effect of a small flame which may result from fault conditions, in order to assess by a simulation technique the fire hazard. It is applicable to electrotechnical equipment, its sub-assemblies and components and to solid electrical insulating materials or other combustible materials. This first edition of EN 60695-11-5 cancels and replaces the second edition of EN 60695-2-2, issued in 1991 and its amendment 1 (1994). It also constitutes a technical revision. The structure of this standard remains essentially the same with some major new changes and concepts added: - The scope has been broadened to allow this test method to also simulate the effects of small flames from outside the equipment. - A new concept has been added which allows the burner to be moved during the test to avoid dripping material from falling onto the tip of the burner tube. - The burner tube material is now a referenced source. - The reference for the copper block material has changed - the ISO publication (ISO 1337) has been withdrawn with no replacement. A new callout is now used. - Informative Annex B and a bibliography have been added. It has the status of a basic safety publication in accordance with IEC Guide 104.

Prüfungen zur Beurteilung der Brandgefahr - Teil 11-5: Prüfflammen - Prüfverfahren mit der Nadelflamme - Versuchsaufbau, Vorkehrungen zur Bestätigungsprüfung und Leitfaden

Essais relatifs aux risques du feu - Partie 11-5: Flammes d'essai - Méthode d'essai au brûleur-aiguille - Appareillage, dispositif d'essai de vérification et lignes directrices

Spécifie un essai au brûleur-aiguille pour simuler l'effet d'une petite flamme qui peut provenir de conditions de défaut, afin d'évaluer par simulation le risque du feu. Elle est applicable aux matériels électrotechniques, à leurs sous-ensembles et à leurs composants et aux matériaux isolants électriques solides ou à d'autres matériaux combustibles. Cette première édition de la EN 60695-11-5 annule et remplace la deuxième édition de la EN 60695-2-2 publiée en 1991 et son amendement 1 (1994). Elle en constitue une révision technique. La structure de cette norme reste essentiellement la même avec l'ajout de plusieurs modifications et concepts majeurs: - Le domaine d'application de la présente méthode d'essai a été élargi pour simuler les effets des petites flammes d'origine externe à l'équipement. - Un nouveau concept a été ajouté qui permet le déplacement du brûleur au cours de l'essai pour éviter que du matériau qui s'écoule tombe sur l'extrémité du tube du brûleur. - Le matériau du tube du brûleur est maintenant une source référencée. - La référence pour le matériau du bloc de cuivre a changé - la publication ISO a été supprimée (ISO 1337) sans remplacement et une nouvelle désignation est désormais utilisée. - L'Annexe informative B et une bibliographie ont été ajoutées. Elle a le statut de publication fondamentale de sécurité, conformément au Guide CEI 104

Preskušanje požarne ogroženosti - 11-5. del: Preskusni plameni - Preskusna metoda z igličastim plamenom - Preskusna naprava, priprava na potrditveni preskus in navodilo (IEC 60695-11-5:2016)

Določa preskus z igličastim plamenom za simulacijo učinka majhnega plamena, ki nastane zaradi okvare, z namenom ocenitve požarne nevarnosti s tehniko simulacije. Uporablja se za elektrotehnično opremo, njene podsestave in komponente ter za trdne električne izolacijske materiale ali druge gorljive materiale. Prva izdaja standarda EN 60695-11-5 razveljavlja in nadomešča drugo izdajo standarda EN 60695-2-2, objavljeno leta 1991, in njeno dopolnilo 1 (1994). Ta izdaja je tudi tehnično popravljena izdaja. Struktura tega standarda ostaja bistveno enaka z nekaterimi dodanimi večjimi novimi spremembami in koncepti: – področje uporabe je razširjeno, da tej preskusni metodi omogoča tudi simulacijo učinkov majhnih plamenov z zunanje strani opreme; – dodan je nov koncept, ki omogoča premikanje gorilnika med izvajanjem preskusa, da se prepreči kapljanje materiala na vrh cevi gorilnika; – material cevi gorilnika je odslej referenčni vir; – referenčni vir za material bakrenega bloka je spremenjen – publikacija ISO 1337 je bila razveljavljena brez nadomestila. Odslej se uporablja nov princip obveščanja; – dodana sta bila informativni dodatek B in bibliografija. Ta standard ima status osnovne varnostne publikacije v skladu z vodilom 104 Mednarodne elektrotehniške komisije.

General Information

Status
Published
Publication Date
15-Jun-2017
Drafting Committee
Current Stage
6060 - Document made available
Due Date
16-Jun-2017
Completion Date
16-Jun-2017

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SLOVENSKI STANDARD
SIST EN 60695-11-5:2017
01-september-2017
1DGRPHãþD
SIST EN 60695-11-5:2005
3UHVNXãDQMHSRåDUQHRJURåHQRVWLGHO3UHVNXVQLSODPHQL3UHVNXVQD
PHWRGD]LJOLþDVWLPSODPHQRP3UHVNXVQDQDSUDYDSULSUDYDQDSRWUGLWYHQL
SUHVNXVLQQDYRGLOR ,(&

Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus,

confirmatory test arrangement and guidance (IEC 60695-11-5:2016)

Prüfungen zur Beurteilung der Brandgefahr - Teil 11-5: Prüfflammen - Prüfverfahren mit

der Nadelflamme - Versuchsaufbau, Vorkehrungen zur Bestätigungsprüfung und
Leitfaden (IEC 60695-11-5:2016)

Essais relatifs aux risques du feu - Partie 11-5: Flammes d'essai - Méthode d'essai au

brûleur-aiguille - Appareillage, dispositif d'essai de vérification et lignes directrices (IEC

60695-11-5:2016)
Ta slovenski standard je istoveten z: EN 60695-11-5:2017
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 60695-11-5:2017 en

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

---------------------- Page: 1 ----------------------
SIST EN 60695-11-5:2017
---------------------- Page: 2 ----------------------
SIST EN 60695-11-5:2017
EUROPEAN STANDARD EN 60695-11-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2017
ICS 13.220.40; 29.020 Supersedes EN 60695-11-5:2005
English Version
Fire hazard testing - Part 11-5: Test flames - Needle-flame test
method - Apparatus, confirmatory test arrangement
and guidance
(IEC 60695-11-5:2016)

Essais relatifs aux risques du feu - Prüfungen zur Beurteilung der Brandgefahr -

Partie 11-5: Flammes d'essai - Méthode d'essai au brûleur- Teil 11-5: Prüfflammen - Prüfverfahren mit der Nadelflamme

aiguille - Appareillage, dispositif d'essai de vérification et - Versuchsaufbau, Vorkehrungen zur Bestätigungsprüfung

lignes directrices und Leitfaden
(IEC 60695-11-5:2016) (IEC 60695-11-5:2016)

This European Standard was approved by CENELEC on 2017-01-10. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 60695-11-5:2017 E
---------------------- Page: 3 ----------------------
SIST EN 60695-11-5:2017
EN 60695-11-5:2017
European foreword

The text of document 89/1346/FDIS, future edition 2 of IEC 60695-11-5, prepared by IEC/TC 89 "Fire

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

EN 60695-11-5:2017.
The following dates are fixed:
(dop) 2017-12-16
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-06-16
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60695-11-5:2005.

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.

Endorsement notice

The text of the International Standard IEC 60695-11-5:2016 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:

ISO 9626:2016 NOTE Harmonized as EN ISO 9626:2016 (not modified).
IEC 60384-1:2016 NOTE Harmonized as EN 60384-1:2016 (not modified).
---------------------- Page: 4 ----------------------
SIST EN 60695-11-5:2017
EN 60695-11-5:2017
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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 60695-4 2012 Fire hazard testing - EN 60695-4 2012
Part 4: Terminology concerning fire tests
for electrotechnical products
IEC Guide 104 - The preparation of safety publications and - -
the use of basic safety publications and
group safety publications
ISO/IEC Guide 51 - Safety aspects - Guidelines for their - -
inclusion in standards
ISO 291 - Plastics - Standard atmospheres for EN ISO 291 -
conditioning and testing
ISO 4046-4 2016 Paper, board, pulps and related terms - - -
Vocabulary -
Part 4: Paper and board grades and
converted products
ISO 13943 2008 Fire safety - Vocabulary EN ISO 13943 2010
ASTM B187 - Standard Specification for Copper, Bus - -
Bar, Rod, and Shapes and General
Purpose Rod, Bar, and Shapes
---------------------- Page: 5 ----------------------
SIST EN 60695-11-5:2017
---------------------- Page: 6 ----------------------
SIST EN 60695-11-5:2017
IEC 60695-11-5
Edition 2.0 2016-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC SAFETY PUBLICATION
PUBLICATION FONDAMENTALE DE SÉCURITÉ
Fire hazard testing –
Part 11-5: Test flames – Needle-flame test method – Apparatus, confirmatory test
arrangement and guidance
Essais relatifs aux risques du feu –
Partie 11-5: Flammes d'essai – Méthode d'essai au brûleur-aiguille –
Appareillage, dispositif d'essai de vérification et lignes directrices
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.220.40; 29.020 ISBN 978-2-8322-3792-2

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 60695-11-5:2017
– 2 – IEC 60695-11-5:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 8

4 Purpose of the test ........................................................................................................ 10

5 Description of the test apparatus ................................................................................... 10

5.1 Burner................................................................................................................... 10

5.2 Gas supply ............................................................................................................ 10

5.3 Flame ................................................................................................................... 10

5.4 Control valve......................................................................................................... 10

5.5 Laboratory fumehood/chamber .............................................................................. 10

5.6 Layer .................................................................................................................... 11

5.6.1 Specified layer ............................................................................................... 11

5.6.2 Standardized layer ......................................................................................... 11

5.7 Timing device ....................................................................................................... 11

6 Test specimen ............................................................................................................... 11

7 Flame application times ................................................................................................. 11

8 Conditioning and test conditions .................................................................................... 12

8.1 Conditioning .......................................................................................................... 12

8.2 Test conditions ..................................................................................................... 12

9 Test procedure .............................................................................................................. 12

9.1 General ................................................................................................................. 12

9.2 Position of test specimen ...................................................................................... 12

9.3 Application of needle-flame ................................................................................... 12

9.4 Number of test specimens ..................................................................................... 13

10 Observations and measurements ................................................................................... 13

11 Evaluation of test results ............................................................................................... 13

12 Information to be given in the relevant specification ....................................................... 13

13 Test report ..................................................................................................................... 14

Annex A (normative) Confirmatory test arrangement ............................................................ 16

A.1 Confirmation of the test flame – Principle .............................................................. 16

A.2 Test apparatus ...................................................................................................... 16

A.2.1 Burner ........................................................................................................... 16

A.2.2 Control valve ................................................................................................. 16

A.2.3 Copper block ................................................................................................. 16

A.2.4 Thermocouple ................................................................................................ 16

A.2.5 Temperature/time indicating/recording devices .............................................. 16

A.3 Procedure ............................................................................................................. 16

Annex B (informative) Example of a product committee specification ................................... 21

Annex C (informative) Comparison of results of confirmatory tests using propane and

butane as fuel ....................................................................................................................... 22

Bibliography .......................................................................................................................... 23

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SIST EN 60695-11-5:2017
IEC 60695-11-5:2016 © IEC 2016 – 3 –

Figure 1 – Burner and flame ................................................................................................. 14

Figure 2 – Test positions....................................................................................................... 15

Figure A.1 – Copper block .................................................................................................... 18

Figure A.2 – Confirmatory test arrangement .......................................................................... 19

Figure A.3 – Gauge to measure flame height and the distance between burner and

copper block (example) ......................................................................................................... 20

Table B.1 – Severities and requirements ............................................................................... 21

Table C.1 – Results of the confirmatory test using propane and butane as fuel ..................... 22

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SIST EN 60695-11-5:2017
– 4 – IEC 60695-11-5:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIRE HAZARD TESTING –
Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
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 60695-11-5 has been prepared by IEC technical committee 89:

Fire hazard testing.

This second edition cancels and replaces the first edition published in 2004. This edition

constitutes a technical revision.

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

edition:

a) The scope has been broadened to allow this test method to also simulate the effects of

small flames from outside the equipment;

b) Propane and butane gas are the specified fuel source with a minimum purity of 95 %;

c) A new concept has been added which allows the burner to be moved during the test to

avoid dripping material from falling onto the tip of the burner tube;
d) The burner tube material is now a referenced source;
---------------------- Page: 10 ----------------------
SIST EN 60695-11-5:2017
IEC 60695-11-5:2016 © IEC 2016 – 5 –

e) The reference for the copper block material has changed – the ISO publication (ISO 1337)

has been withdrawn with no replacement. A new callout is now used;
f) Informative Annex C and a bibliography have been added.
The text of this standard is based on the following documents:
FDIS Report on voting
89/1346/FDIS 89/1351/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.

A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing, can

be found on the IEC website.

The committee has decided that the contents of this publication will remain unchanged until

the stability date indicated on the IEC website 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.
---------------------- Page: 11 ----------------------
SIST EN 60695-11-5:2017
– 6 – IEC 60695-11-5:2016 © IEC 2016
INTRODUCTION

The best method for testing electrotechnical products with regard to fire hazard is to duplicate

exactly the conditions occurring in practice. In most instances this is not possible.

Accordingly, for practical reasons, the testing of electrotechnical products with regard to fire

hazard is best conducted by simulating as closely as possible the actual effects occurring in

practice.

Parts of electrotechnical equipment might be exposed to excessive thermal stress due to

electric effects. This can result in deterioration that might impair the safety of the equipment.

Such parts should not be unduly affected by heat or by fire generated within the equipment.

Parts of insulating material or of other combustible material which are liable to propagate

flames inside the equipment may be ignited by flames produced by a failing component.

Under certain conditions, for example a fault current flowing over a tracking path, overloading

of components or parts and bad connections, flames may also occur; such flames may

impinge upon combustible parts in the vicinity.

This part of IEC 60695 is intended to be used to measure and describe the properties of

materials, products or assemblies in response to heat and flame under controlled laboratory

conditions and is not intended to be used to describe or appraise the fire hazard or fire risk of

materials, products, or assemblies under actual fire conditions. This 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.

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SIST EN 60695-11-5:2017
IEC 60695-11-5:2016 © IEC 2016 – 7 –
FIRE HAZARD TESTING –
Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
1 Scope

This part of IEC 60695 specifies a needle-flame test to simulate the effect of a small flame

which may result from fault conditions, in order to assess the fire hazard by a simulation

technique. The results of this test may be used as elements of a fire hazard assessment

which takes into account all of the factors which are pertinent to an assessment of the fire

hazard of a particular end use.

It is applicable to electrotechnical equipment, its sub-assemblies and components and to solid

electrical insulating materials or other combustible materials.

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 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.

IEC 60695-4:2012, Fire hazard testing – Part 4: Terminology concerning fire tests for

electrotechnical products

IEC Guide 104, The preparation of safety publications and the use of basic safety publications

and group safety publications
ISO/IEC Guide 51, Safety aspects – Guidelines for their inclusion in standards
ISO 291, Plastics – Standard atmospheres for conditioning and testing

ISO 4046-4:2016, Paper, board, pulps and related terms – Vocabulary – Part 4: Paper and

board grades and converted products
ISO 13943:2008, Fire safety – Vocabulary

ASTM-B187, Standard specification for copper, bus bar, rod, and shapes and general purpose

rod, bar, and shapes
---------------------- Page: 13 ----------------------
SIST EN 60695-11-5:2017
– 8 – IEC 60695-11-5:2016 © IEC 2016
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 13943:2008,

IEC 60695-4:2012 and ISO 4046:2002, as well as the following, 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
combustible, adj.
capable of being ignited and burned
[SOURCE: ISO 13943:2008, 4.43]
3.2
draught-free environment

space in which the results of experiments are not significantly affected by the local air speed

Note 1 to entry: A qualitative example is a space in which a wax candle flame remains essentially undisturbed.

-1 -1

Quantitative examples are small-scale fire tests in which a maximum air speed of 0,1 m × s or 0,2 m × s is

sometimes specified.
[SOURCE: ISO 13943:2008, 4.70]
3.3
fire

〈general〉 process of combustion characterized by the emission of heat and fire effluent and

usually accompanied by smoke, flame, glowing or a combination thereof

Note 1 to entry: In the English language the term “fire” is used to designate three concepts, two of which, fire

(3.4) and fire (3.5), relate to specific types of self-supporting combustion with different meanings and two of them

are designated using two different terms in both French and German.
[SOURCE: ISO 13943:2008, 4.96]
3.4
fire

〈controlled〉 self-supporting combustion that has been deliberately arranged to provide useful

effects and is limited in its extent in time and space
[SOURCE: ISO 13943:2008, 4.97]
3.5
fire

〈uncontrolled〉 self-supporting combustion that has not been deliberately arranged to provide

useful effects and is not limited in its extent in time and space
[SOURCE: ISO 13943:2008, 4.98]
3.6
fire hazard

physical object or condition with a potential for an undesirable consequence from fire (3.1)

[SOURCE: ISO 13943:2008, 4.112]
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SIST EN 60695-11-5:2017
IEC 60695-11-5:2016 © IEC 2016 – 9 –
3.7
fire risk

probability of a fire (3.3) combined with a quantified measure of its consequence

Note 1 to entry: It is often calculated as the product of probability and consequence.

[SOURCE: ISO 13943:2008, 4.124]
3.8
flame, noun

rapid, self-sustaining, sub-sonic propagation of combustion in a gaseous medium, usually with

emission of light
[SOURCE: ISO 13943:2008, 4.133]
3.9
glowing, noun
luminosity caused by heat
cf. incandescence
[SOURCE: ISO 13943:2008, 4.168]
3.10
glowing combustion

combustion of a material in the solid phase without flame but with emission of light from the

combustion zone
cf. incandescence
[SOURCE: ISO 13943:2008, 4.169]
3.11
ignition
sustained ignition (deprecated)
〈general〉 initiation of combustion
[SOURCE: ISO 13943:2008, 4.187]
3.12
ignition
sustained ignition (deprecated)
〈flaming combustion〉 initiation of sustained flame
[SOURCE: ISO 13943:2008, 4.188]
3.13
wrapping tissue

soft and strong, lightweight wrapping paper of grammage generally between 12 g/m and

30 g/m , primarily intended for protective packaging of delicate articles and for gift wrapping

Note 1 to entry: In French, the word “mousseline” includes both white tissue and “bulle corde”, which is

unbleached or coloured tissue.
[SOURCE: ISO 4046-4:2016, 4.215]
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SIST EN 60695-11-5:2017
– 10 – IEC 60695-11-5:2016 © IEC 2016
4 Purpose of the test

The test is performed to determine that, under defined conditions, the test flame either does

not cause ignition of parts or if it does, combustible parts ignited by the test flame have a

limited duration of burning or a limited extent of burning, without spreading fire by flames or

burning or glowing particles falling from the test specimen.

The test flame, applied to the test specimen, imitates a flame that might arise from a

component that is close to the test specimen in the real application.Such a flame might have

occurred, for example, because of an electrical fault.

The relevant product specification shall specify, if applicable, the duration of the test flame

application and the acceptance criteria.
5 Description of the test apparatus
5.1 Burner

The burner to produce the test flame shall consist of a tube at least 35 mm long with a bore of

0,5 mm ± 0,1 mm and an outer diameter not exceeding 0,9 mm.

NOTE The tubing specified in ISO 9626:2016 [1] (0,8 mm normal walled or thin walled) meets these

requirements.
5.2 Gas supply

The burner is supplied with either propane or butane gas having a purity not less than 95 %.

5.3 Flame

With the axis of the burner in the vertical position, ignite the gas supply and adjust the gas

flow rate to ensure that the overall height of the flame is 12 mm ± 1 mm, when viewed in

subdued light against a dark background (see Figure 1), and that the flame is symmetrical.

Wait for a period of at least 5 min to allow the burner conditions to reach equilibrium. There

shall be no air admitted to the burner tube.

The flame shall be confirmed using the apparatus and procedure detailed in Annex A.

5.4 Control valve

A control valve is required to set the gas flow rate to ensure that the overall height of the

flame is within the required tolerances.
5.5 Laboratory fumehood/chamber
. The
The laboratory fumehood/chamber shall have an inside volume of at least 0,5 m

chamber shall provide a draught-free environment, whilst allowing normal thermal circulati

...

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