1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFire hazard testing Part 2-12: Glowing/hot-wire based test methods Glow-wire flammability index (GWFI) test method for materialsBS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/
2、EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSINational forewordThis British Standard is the UK implementation of EN 60695-2-12:2010. It isidentical to IEC 60695-2-12:2010. It supersedes BS EN 60695-2-12:2001which is withdrawn.The UK participation in its preparation was entrus
3、ted to Technical CommitteeGEL/89, Fire hazard testing.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2011IS
4、BN 978 0 580 54941 0ICS 13.220.40; 29.020Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy Committee on 31 May 2011.Amendments issued since publicationAmd. No. Date Text affected
5、BRITISH STANDARDBS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD EN 60695-2-12 NORME EUROPENNE EUROPISCHE NORM December 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Norma
6、lisation Electrotechnique Europisches Komitee fr 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 Superse
7、des EN 60695-2-12:2001English 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 - Mthode dessai dind
8、ice dinflammabilit au fil incandescent (GWFI) pour matriaux(CEI 60695-2-12:2010) Prfungen zur Beurteilung der Brandgefahr - Teil 2-12: Prfverfahren mit dem Glhdraht - Prfung mit dem Glhdraht zur Entflammbarkeit (GWFI) von Werkstoffen (IEC 60695-2-12:2010) This European Standard was approved by CENEL
9、EC 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 standard
10、s 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 notifie
11、d 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, Li
12、thuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSIEN 60695-2-12:2010 - 2 - Fore
13、word 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 o
14、f 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; additi
15、on 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
16、 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). A
17、ttention 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 natio
18、nal 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
19、60695-2-12:2010 was approved by CENELEC as a European Standard without any modification. BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSI- 3 - EN 60695-2-12:2010 In the official version, for Bibliography, the following notes hav
20、e 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). _ BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2
21、011 07:30, Uncontrolled Copy, (c) BSIEN 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 t
22、he 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
23、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 a
24、nd 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-w
25、ire 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 29
26、1 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 pr
27、inciples, 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 BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHAN
28、GE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSI 2 60695-2-12 IEC:2010 CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references6 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 Ge
29、neral .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 conditions9 7.1 Conditioning of test specimens 9 7.2 Conditioning of the wrapping tissue and the wooden board.9 7.3 Testing conditions9 8
30、Test procedure .10 8.1 General .10 8.2 Initial test temperatures .10 8.3 Test temperatures .10 9 Observations and measurements11 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 index11 11 Test re
31、port12 Bibliography13 Table 1 Initial test temperatures .10 BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSI60695-2-12 IEC:2010 5 INTRODUCTION In the design of any electrotechnical product, the risk of fire and the potential haz
32、ards associated with fire need to be considered. In this respect the objective of component, circuit, and product design, as well as the choice of materials, is to reduce to acceptable levels the potential risks of fire during normal operating conditions, reasonable foreseeable abnormal use, malfunc
33、tion and/or failure. IEC/TC 89 has developed IEC 60695-1-10, together with its companion, IEC 60695-1-11, 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: a) to prevent ignition caused by an electrically ener
34、gized component part, and b) to 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 products enclosure and the minimization
35、of the 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 should be dealt with in the overall fire risk assessment. In electrotechnical
36、 equipment, overheated metal parts can act as ignition sources. In glow-wire tests a red-hot 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 60695-2-11 describes a glow-wire flammability test for end product
37、s, and IEC 60695-2-13 describes a glow-wire ignition temperature test method for materials. This part of IEC 60695 describes a glow-wire flammability index test for materials. It should be used to measure, describe, and rank the properties of materials in response to heat caused by contact with an e
38、lectrically heated wire under controlled laboratory conditions. This may be useful for the evaluation of materials for use in products that may be exposed to excess thermal stress such as a fault current flowing through a wire, overloading of components, and/or bad connections. It should not be used
39、 to solely describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors pertinent to a fire hazard assessment of a part
40、icular end use. This International 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 de
41、termine the applicability of regulatory limitations prior to use. BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 12/08/2011 07:30, Uncontrolled Copy, (c) BSI 6 60695-2-12 IEC:2010 FIRE HAZARD TESTING Part 2-12: Glowing/hot-wire based test methods Glow-wire flammability i
42、ndex (GWFI) test method for materials 1 Scope 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 th
43、e 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
44、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 abilit
45、y 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 com
46、mittees 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,
47、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 referenced documents are indispensable for the application of this document. For dated references, only the e
48、dition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 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 IEC
49、60695-2-10:2000, Fire hazard testing Part 2-10: Glowing/hot-wire based test methods Glow-wire apparatus and common test procedure 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 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 BS EN 60695-2-12:2010Licensed Copy: Wang Bin, ISO/E
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