1、 IEC 60695-1-11 Edition 2.0 2014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-11: Guidance for assessing the fire hazard of electrotechnical products Fire hazard assessment Essais relatifs aux risques du feu Partie 1-11: Lignes directrices pour lvaluation du danger du fe
2、u des produits lectrotechniques Evaluation du danger du feu IEC 60695-1-11:2014-10(en-fr) BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publi
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20、014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Fire hazard testing Part 1-11: Guidance for assessing the fire hazard of electrotechnical products Fire hazard assessment Essais relatifs aux risques du feu Partie 1-11: Lignes directrices pour lvaluation du danger du feu des produits lectrotechniqu
21、es Evaluation du danger du feu INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE X ICS 13.220.40, 29.020 PRICE CODE CODE PRIX ISBN 978-2-8322-1862-4 BASIC SAFETY PUBLICATION PUBLICATION FONDAMENTALE DE SCURIT Registered trademark of the International Electrotechnic
22、al Commission Marque dpose de la Commission Electrotechnique Internationale 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 agr. 2 IEC 60695-1-11:2014 IEC 2014 CONTENTS F
23、OREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Elements of fire hazard assessment 14 4.1 Ignition sources 14 4.2 Fire hazard . 14 4.3 Fire risk 14 4.4 Fire hazard assessment 15 5 Fire hazard tests 15 6 The fire hazard assessment process 16 6.1 General . 1
24、6 6.2 Definition of the product range and the circumstances of use 17 6.3 Identification and analysis of fire scenarios . 17 6.3.1 General . 17 6.3.2 Qualitative description of the fire scenario . 17 6.3.3 Quantitative analysis of the fire scenario . 18 6.3.4 Simple hypothetical fire scenarios 19 6.
25、4 Selection of criteria for acceptable fire scenario outcomes 20 6.5 Performance requirements 20 6.6 Interpretation of test results 20 6.7 Consequential testing . 21 7 Extent and limitations of the fire hazard assessment . 21 8 Fire test requirements and specifications . 21 Annex A (informative) Cal
26、culation of acceptable toxic yield values for an electrical insulation material, based on a simple hypothetical fire scenario. 28 A.1 Definition of the fire scenario 28 A.2 Irritant fire effluent 28 A.2.1 F values 28 A.2.2 Equation for irritants 28 A.2.3 Calculation of the X ivalues 29 A.3 Asphyxian
27、t fire effluent . 29 A.3.1 Exposure dose . 29 A.3.2 Equation for asphyxiants . 29 A.3.3 Calculation of X CO30 A.3.4 Calculation of XHCN 31 A.4 Carbon dioxide 32 A.5 Conclusions 32 Annex B (informative) Use of rigid plastic conduit A fire hazard assessment . 33 B.1 General . 33 B.2 Terms and definiti
28、ons 33 B.3 Products covered by this fire hazard assessment 33 B.4 Circumstances of use 33 B.4.1 Conduit and wiring . 33 IEC 60695-1-11:2014 IEC 2014 3 B.4.2 Building construction . 34 B.5 Fire scenarios . 34 B.6 Relevant fire behaviour . 35 B.6.1 General . 35 B.6.2 Modelling the exposure fire 35 B.6
29、3 Predicting mass loss of the conduit 36 B.7 Results . 36 B.7.1 Comparative of fires with and without RPC 36 B.7.2 Assessment of the contribution of RPC to temperature rise 36 B.7.3 Assessment of the contribution of RPC to smoke production 36 B.7.4 Assessment of the contribution of RPC to the produ
30、ction of toxic effluent 37 B.8 Interpretation of results Significance and precision 38 B.9 Conclusions 39 Bibliography 45 Figure 1 Flowchart 1 for description of the fire scenario . 23 Figure 2 Flowchart 1A for evaluation of ignitability/flammability 24 Figure 3 Flowchart 1B for evaluation of flame
31、propagation and heat release 25 Figure 4 Flowchart 1C for evaluation of fire effluent . 26 Figure 5 Flowchart for description of the range of products and circumstances of use 27 Figure B.1 Schematic of conduit installation . 40 Figure B.2 Corridor upper layer temperature (concrete wall) 40 Figure B
32、3 Corridor upper layer temperature (gypsum wall board) 41 Figure B.4 Flux measured at the conduit 2 m away (concrete wall) 41 Figure B.5 Flux measured at the conduit 2 m away (gypsum wall) 42 Figure B.6 Comparative mass loss rates of furniture and conduit (concrete wall) . 42 Figure B.7 Comparative
33、 mass loss rates of furniture and conduit (gypsum wall board) . 43 Figure B.8 Relative increase of toxicity due to exposed conduit (concrete wall) . 43 Figure B.9 Relative increase of toxicity due to exposed conduit (gypsum wall board) . 44 Table A.1 Irritant F values and calculated X values for the
34、 defined fire scenario . 29 Table A.2 Asphyxiant X values calculated for the defined fire scenario . 30 Table A.3 Incapacitation times for hydrogen cyanide 31 Table A.4 Multiplication factors for carbon dioxide . 32 Table B.1 Summary of fire scenario information . 35 Table B.2 Time of occurrence of
35、highly hazardous conditions in building corridors 38 4 IEC 60695-1-11:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FIRE HAZARD TESTING Part 1-11: Guidance for assessing the fire hazard of electrotechnical products Fire hazard assessment FOREWORD 1) The International Electrotechnical Com
36、mission (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
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43、f 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 an
44、d 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 Publica
45、tion 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 Publica
46、tion may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60695-1-11 has been prepared by IEC technical committee 89: Fire hazard testing. This second edition cancels and replaces the first edition of IEC 606
47、95-1-11 published in 2010, and constitutes a technical revision. The main changes with respect to the previous edition are: a) Updated references; b) Updated terms and definitions; and c) Added Figure 5 Description of range of products and circumstances of use; and d) Updated Bibliography. IEC 60695
48、1-11:2014 IEC 2014 5 The text of this standard is based on the following documents: FDIS Report on voting 89/1220/FDIS 89/1239/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
49、 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 51 101 . This standard is to be used in conjunction with IEC 60695-1-10. A list of all the parts in the IEC 60695 series, under the general title Fire hazard testing, can be found on the IEC website. Part 1 consists of the following parts: Part 1-10
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