Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials (IEC 60695-2-12:2010)

This part of IEC 60695 specifies the details of the glow-wire test to be applied to test specimens of solid electrical insulating materials or other solid materials for flammability testing to determine the glow-wire flammability index (GWFI). GWFI is the highest temperature, determined during this standardized procedure, at which the tested material
a) does not ignite or, if it does, extinguishes within 30 s after removal of the glow-wire and is
not totally consumed, and
b) molten drips, if they occur, do not ignite the wrapping tissue.
This test method is a materials test carried out on a series of standard test specimens. The data obtained, along with data from the glow-wire ignition temperature (GWIT) test method for materials, IEC 60695-2-13, can then be used in a preselection process in accordance with IEC 60695-1-30 to judge the ability of materials to meet the requirements of IEC 60695-2-11. NOTE As an outcome of conducting a fire hazard assessment, an appropriate series of preselection flammability and ignition tests may allow a reduction of end product testing. 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.

Prüfungen zur Beurteilung der Brandgefahr - Teil 2-12: Prüfverfahren mit dem Glühdraht - Prüfung mit dem Glühdraht zur Entflammbarkeit (GWFI) von Werkstoffen (IEC 60695-2-12:2010)

Essais relatifs aux risques du feu - Partie 2-12: Essais au fil incandescent/chauffant - Méthode d'essai d'indice d'inflammabilité au fil incandescent (GWFI) pour matériaux (CEI 60695-2-12:2010)

La CEI 60695-2-12:2010 spécifie les détails de l'essai au fil incandescent quand il est appliqué à des éprouvettes d'essai de matériaux isolants électriques solides ou autres matériaux solides pour les essais d'inflammabilité dans le but de déterminer l'indice d'inflammabilité au fil incandescent (GWFI, glow-wire flammability index). Le GWFI est la température la plus élevée, déterminée durant cette procédure normalisée, à laquelle le matériau essayé; ne s'enflamme pas ou s'il s'enflamme, s'éteint dans les 30 s qui suivent le retrait du fil incandescent et n'est pas entièrement consumé, et gouttes en fusion, s'il y a lieu, n'enflamme pas le papier mousseline. Cette norme doit être utilisée conjointement avec la CEI 60695-2-10 et la CEI 60695-2-13. Cette deuxième édition inclut les prochains changements techniques significatifs par rapport à l'édition précédente: - modification du titre; - ajout d'une Introduction; - clarification du Domaine d'application; - extension de l'Article 2: Références normatives; - définitions ajoutées à l'Article 3; - révision de l'Article 4 pour alignement avec la série CEI 60695-11 afin d'introduire des lignes directrices concernant les programmes d'essai pour les variations des matériaux; - clarification de l'Article 8: Conditionnement (désormais Article 7); - suppression de l'Article 9 'Mesures initiales'; - extension de l'Article 10: Méthodes d'essai (désormais Article 8); - extension de l'Article 11: Observations et mesures (désormais Article 9); - clarification de l'Article 12: Evaluation des résultats de l'essai (désormais Article 10); - extension de l'Article 13: Rapport d'essai (désormais Article 11). Cette norme a le statut de publication fondamentale de sécurité, conformément au Guide CEI 104 et au Guide ISO/CEI 51.

Preskušanje požarne ogroženosti - 2-12. del: Preskusne metode z žarilno žico - Preskusna metoda za materiale: indeks vnetljivosti z žarilno žico (GWFI) (IEC 60695-2-12:2010)

Ta del IEC 60695 določa podrobnosti preskusa z žarilno žico, ki se uporablja za preskus vzorca trdnih električnih izolacijskih materialov ali trdnih materialov za preskušanje vnetljivosti, da se ugotovi indeks vnetljivosti z žarilno žico (GWFI). GWFI je najvišja temperatura, ugotovljena med tem standardiziranim postopkom, pri kateri se preskušani material:
a) ne vname ali, če se, ugasne v 30 sekundah po umiku žarilne žice ter se
ali ne v celoti porabi in
b) če se pojavi kapljajoča talina, se ovojno blago ne vname.
Ta preskusna metoda je preskus materialov, izveden na seriji standardnih preskusnih vzorcev. Pridobljeni podatki, skupaj s podatki preskusne metode temperature vžiga žarilne žice (GWIT) za materiale, IEC 60695-2-13, se lahko uporabijo v predizbirnem postopku v skladu z IEC 60695-1-30, da se presodi, ali materiali lahko izpolnjujejo zahteve iz IEC 60695-2-11. OPOMBA Kot posledica izvajanja ocene požarne ogroženosti primerno zaporedje predizbirnih preskusov vnetljivosti in vžiga lahko omogoči zmanjševanje preskušanja končnega proizvoda. Ta osnovna varnostna publikacija je namenjena temu, da jo uporabljajo tehnični odbori pri pripravi standardov v skladu z načeli, opredeljenimi v IEC Guide 104 in ISO/IEC Guide 51. Ena od odgovornosti tehničnega odbora je, če je to primerno, uporabiti temeljne varnostne publikacije pri pripravi svojih publikacij. Zahteve, preskusne metode ali preskusni pogoji te temeljne varnostne publikacije se ne uporabljajo, razen če se ustrezne publikacije nanje izrecno sklicujejo ali jih vključujejo.

General Information

Status
Published
Publication Date
04-Jan-2011
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
15-Dec-2010
Due Date
19-Feb-2011
Completion Date
05-Jan-2011

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Preskušanje požarne ogroženosti - 2-12. del: Preskusne metode z žarilno žico - Preskusna metoda za materiale: indeks vnetljivosti z žarilno žico (GWFI) (IEC 60695-2-12:2010)Prüfungen zur Beurteilung der Brandgefahr - Teil 2-12: Prüfverfahren mit dem Glühdraht - Prüfung mit dem Glühdraht zur Entflammbarkeit (GWFI) von Werkstoffen (IEC 60695-2-12:2010)Essais relatifs aux risques du feu - Partie 2-12: Essais au fil incandescent/chauffant - Méthode d'essai d'indice d'inflammabilité au fil incandescent (GWFI) pour matériaux (CEI 60695-2-12:2010)Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability index (GWFI) test method for materials (IEC 60695-2-12:2010)13.220.40Sposobnost vžiga in obnašanje materialov in proizvodov pri gorenjuIgnitability and burning behaviour of materials and productsICS:Ta slovenski standard je istoveten z:EN 60695-2-12:2010SIST EN 60695-2-12:2011en01-februar-2011SIST EN 60695-2-12:2011SLOVENSKI

STANDARDSIST EN 60695-2-12:20021DGRPHãþD
SIST EN 60695-2-12:2011
EUROPEAN STANDARD EN 60695-2-12 NORME EUROPÉENNE
EUROPÄISCHE NORM December 2010

CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -

All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60695-2-12:2010 E
ICS 13.220.40, 29.020 Supersedes EN 60695-2-12:2001
English version
Fire hazard testing -
Part 2-12: Glowing/hot-wire based test methods -

Glow-wire flammability index (GWFI) test method for materials (IEC 60695-2-12:2010)

Essais relatifs aux risques du feu -
Partie 2-12: Essais au fil incandescent/chauffant -

Méthode d'essai d'indice d'inflammabilité au fil incandescent (GWFI) pour matériaux(CEI 60695-2-12:2010)

Prüfungen zur Beurteilung der Brandgefahr -
Teil 2-12: Prüfverfahren mit dem Glühdraht -

Prüfung mit dem Glühdraht zur Entflammbarkeit (GWFI) von Werkstoffen (IEC 60695-2-12:2010)

This European Standard was approved by CENELEC on 2010-12-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

SIST EN 60695-2-12:2011

EN 60695-2-12:2010 - 2 - Foreword The text of document 89/1017/FDIS, future edition 2 of IEC 60695-2-12, prepared by IEC TC 89, Fire hazard testing, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60695-2-12 on 2010-12-01. This European Standard supersedes EN 60695-2-12:2001. 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 EN 60695-2-10 and EN 60695-2-13.

This EN 60695-2-12:2010 includes the following significant technical changes with respect to

EN 60695-2-12:2001: – modified title; – addition of an Introduction; – clarification of Scope; – expansion of Clause 2: Normative references; – definitions added to Clause 3; – revision of Clause 4 to alignment with the EN 60695-11 series to introduce guidance on test programs for material variations; – clarification of Clause 8: Conditioning (now Clause 7); – deletion of Clause 9 “Initial measurements”; – expansion of Clause 10: Test procedures (now Clause 8); – expansion of Clause 11: Observation and measurement (now Clause 9); – clarification of Clause 12: Evaluation of test results (now Clause 10); – expansion of Clause 13: Test report (now Clause 11). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: – latest date by which the EN has to be implemented

at national level by publication of an identical
national standard or by endorsement
(dop)
2011-09-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)

2013-12-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 60695-2-12:2010 was approved by CENELEC as a European Standard without any modification. SIST EN 60695-2-12:2011

- 3 - EN 60695-2-12:2010 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 IEC 60695-11 series NOTE
Harmonized as EN 60695-1-11.
NOTE
Harmonized in EN 60695-11 series (not modified). __________
SIST EN 60695-2-12:2011
EN 60695-2-12:2010 - 4 - Annex ZA

(normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application 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

When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.

Publication Year Title EN/HD Year
IEC 60695-1-30 2008 Fire hazard testing -

Part 1-30: Guidance for assessing the fire hazard of electrotechnical products - Preselection testing process - General guidelines EN 60695-1-30 2008

IEC 60695-2-10 2000 Fire hazard testing -

Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure EN 60695-2-10 2001

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 EN 60695-2-11 2001

IEC 60695-2-13 - Fire hazard testing -

Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignition temperature (GWIT) test method for materials EN 60695-2-13 -

ISO/IEC Guide 51 1999 Safety aspects - Guidelines for their inclusion in standards - -

IEC Guide 104 1997 The preparation of safety publications and the use of basic safety publications and group safety publications - -

ISO 291 2008 Plastics - Standard atmospheres for conditioning and testing
EN ISO 291 2008

ISO 293 2004 Plastics - Compression moulding of test specimens of thermoplastic materials EN ISO 293 2005

ISO 294 Series Plastics - Injection moulding of test
specimens of thermoplastic materials -

Part 1: General principles, and moulding of multipurpose and bar test specimens EN ISO 294 Series

ISO 295 2004 Plastics - Compression moulding of test specimens of thermosetting materials

EN ISO 295 2004
ISO 13943 2008 Fire safety - Vocabulary EN ISO 13943 2010
SIST EN 60695-2-12:2011

IEC 60695-2-12Edition 2.0 2010-10INTERNATIONAL STANDARD NORME INTERNATIONALEFire hazard testing –

Part 2-12: Glowing/hot-wire based test methods – Glow-wire flammability index (GWFI) test method for materials

Essais relatifs aux risques du feu –

Partie 2-12: Essais au fil incandescent/chauffant – Méthode d'essai d'indice d’inflammabilité au fil incandescent (GWFI) pour matériaux

INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE MICS 13.220.40; 29.020 PRICE CODECODE PRIXISBN 978-2-88912-215-8BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SÉCURITÉ® Registered trademark of the International Electrotechnical Commission

Marque déposée de la Commission Electrotechnique Internationale ® SIST EN 60695-2-12:2011

– 2 – 60695-2-12 © IEC:2010

CONTENTS FOREWORD...........................................................................................................................3 INTRODUCTION.....................................................................................................................5 1 Scope...............................................................................................................................6 2 Normative references........................................................................................................6 3 Terms and definitions.......................................................................................................7 4 Test specimens................................................................................................................8 4.1 Test specimen preparation.......................................................................................8 4.2 Test specimen dimensions.......................................................................................8 4.3 Testing ranges in formulations.................................................................................8 4.3.1 General.......................................................................................................8 4.3.2 Density, melt flows and filler/reinforcement..................................................9 4.3.3 Colour.........................................................................................................9 5 Apparatus.........................................................................................................................9 6 Temperature measuring system verification......................................................................9 7 Conditioning and test conditions........................................................................................9 7.1 Conditioning of test specimens................................................................................9 7.2 Conditioning of the wrapping tissue and the wooden board.......................................9 7.3 Testing conditions....................................................................................................9 8 Test procedure...............................................................................................................10 8.1 General.................................................................................................................10 8.2 Initial test temperatures.........................................................................................10 8.3 Test temperatures.................................................................................................10 9 Observations and measurements....................................................................................11 9.1 General.................................................................................................................11 9.2 Initial observations.................................................................................................11 9.3 Test observations..................................................................................................11 10 Evaluation of test results.................................................................................................11 10.1 Test criteria...........................................................................................................11 10.2 Glow-wire flammability index..................................................................................11 11 Test report......................................................................................................................12 Bibliography..........................................................................................................................13

Table 1 – Initial test temperatures.........................................................................................10

SIST EN 60695-2-12:2011
60695-2-12 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
FIRE HAZARD TESTING –
Part 2-12: Glowing/hot-wire based test methods –
Glow-wire flammability index (GWFI) test method for materials

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 60695-2-12 has been prepared by technical committee 89: Fire hazard testing. This second edition of IEC 60695-2-12 cancels and replaces the first edition published in 2000. It also constitutes a technical revision. 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 and IEC 60695-2-13. The main changes with respect to the previous edition are listed below: – modified title; – addition of an Introduction; – clarification of Scope; SIST EN 60695-2-12:2011

– 4 – 60695-2-12 © IEC:2010

– expansion of Clause 2: Normative references; – definitions added to Clause 3; – revision of Clause 4 to alignment with the IEC 60695-11 series to introduce guidance on test programs for material variations; – clarification of Clause 8: Conditioning (now Clause 7); – deletion of Clause 9 “Initial measurements”; – expansion of Clause 10: Test procedures (now Clause 8); – expansion of Clause 11: Observation and measurement (now Clause 9); – clarification of Clause 12: Evaluation of test results (now Clause 10); – expansion of Clause 13: Test report (now Clause 11). The text of this standard is based on the following documents: FDIS Report on voting 89/1017/FDIS 89/1034/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. 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. Part 2 consists of the following parts: Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test procedure Part

2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end-products Part 2-12: Glowing/hot-wire based test methods – Glow-wire flammability index (GWFI) test method for materials Part 2-13: Glowing/hot-wire based test methods – Glow-wire ignition temperature (GWIT) test method for materials The committee has decided that the contents of this publication will

...

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