IEC 60695-11-5:2016

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

IEC 60695-11-5:2016 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 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:
- The scope has been broadened to allow this test method to also simulate the effects of small flames from outside the equipment;
- Propane and butane gas are the specified fuel source with a minimum purity of 95 %;
- 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- The reference for the copper block material has changed - the ISO publication (ISO 1337) has been withdrawn with no replacement.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 and Informative Annex C and a bibliography have been added. 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.

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

L'IEC 60695-11-5:2016 spécifie un essai au brûleur-aiguille pour simuler l'effet d'une petite flamme qui peut provenir de conditions de défaut, afin d'évaluer le danger d'incendie par simulation. Les résultats de cet essai peuvent être utilisés comme éléments d'évaluation d'un danger d'incendie qui tient compte de tous les facteurs qui sont pertinents pour une évaluation de danger d'incendie dans une utilisation finale spécifique. Elle est applicable aux matériels électrotechniques, à leurs sous-ensembles et à leurs composants ainsi qu'aux matériaux isolants électriques solides ou à d'autres matériaux combustibles. Cette deuxième édition annule et remplace la première édition parue en 2004. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- 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;
- Le gaz propane et le gaz butane sont les sources de combustible spécifiées avec une pureté minimale de 95 %;
- 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 (ISO 1337) a été supprimée sans remplacement et une nouvelle désignation est désormais utilisée. L'Annexe informative C et une bibliographie ont été ajoutées. La présente publication fondamentale de sécurité est destinée à être utilisée par les comités d'études dans le cadre de l'élaboration de normes conformément aux principes établis dans le IEC Guide 104 et le Guide ISO/IEC 51.
Mots clés: danger d'incendie, Flammes d'essai, Méthode d'essai au brûleur-aiguille

General Information

• Status: Published
• Publication Date: 05-Dec-2016
• 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: PPUB - Publication issued
• Start Date: 15-Jan-2017
• Completion Date: 06-Dec-2016

Relations

• Revises: IEC 60695-11-5:2004 - Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60695-11-5 ®
Edition 2.0 2016-12
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC SAFETY PUBLICATION
Fire hazard testing –
Part 11-5: Test flames – Needle-flame test method – Apparatus, confirmatory test
arrangement and guidance
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]
3, rue de Varembé Fax: [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.

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.

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IEC 60695-11-5 ®
Edition 2.0 2016-12
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC SAFETY PUBLICATION
Fire hazard testing –
Part 11-5: Test flames – Needle-flame test method – Apparatus, confirmatory

test arrangement and guidance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.220.40; 29.020 ISBN 978-2-8322-3695-6

– 2 – IEC 60695-11-5:2016 RLV © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 General description 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. 11
5.5 Laboratory fumehood/chamber . 11
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 Severities Flame application times . 12
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 . 13
9.3 Application of needle-flame . 13
9.4 Number of test specimens . 13
10 Observations and measurements . 13
11 Evaluation of test results . 14
12 Information to be given in the relevant specification . 14
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) Access to equipment manufacturers and suppliers .
Annex B (informative) Example of a product committee specification . 22
Annex C (informative) Comparison of results of confirmatory tests using propane and
butane as fuel . 23
Bibliography . 24

Figure 1 – Needle Burner and flame. 15
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 . 22
Table C.1 – Results of the confirmatory test using propane and butane as fuel . 23

– 4 – IEC 60695-11-5:2016 RLV © 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
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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 tub
...

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
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.

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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.

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Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

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The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

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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

– 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

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

– 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 po
...