BS EN IEC 60695-6-2:2018 – TC:2020 Edition
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Tracked Changes. Fire hazard testing – Smoke obscuration. Summary and relevance of test methods
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 82 |
IEC 60695-6-2:2018 provides a summary of commonly used test methods for the assessment of smoke obscuration. It presents a brief summary of static and dynamic test methods in common use, either as international standards or national or industry standards. It includes special observations on their relevance to electrotechnical products and their materials and to fire scenarios, and gives recommendations on their use. This basic safety publication is primarily 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. It is not intended for use by manufacturers or certification bodies. 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 60695-6-1. This standard cancels and replaces IEC 60695-6-2 published in 2011. This second edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) updated introduction; b) updated normative references; c) new text in 4.1; d) deletion of references to IEC 60695-6-30 and -31 (withdrawn) e) updates with respect to ISO 5659-2; f) deletion of references to BS 6853 and CEI 20-37-3 (superseded); g) deletion of references to ISO/TR 5924 (withdrawn); h) updated text with respect to EN 50399; i) updated text with respect to ISO 5660-1; j) addition of new Subclause 7.5 k) deletion of Annex B; l) deletion of Annex E; m) additional bibliographic references. Key words: Fire Hazard, Smoke Obscuration
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | compares BS EN IEC 60695-6-2:2018 |
| 2 | TRACKED CHANGES Text example 1 — indicates added text (in green) |
| 46 | undefined |
| 50 | English CONTENTS |
| 52 | FOREWORD |
| 54 | INTRODUCTION |
| 55 | 1 Scope 2 Normative references 3 Terms and definitions |
| 59 | 4 Types of of test method 4.1 General 4.2 The physical fire model |
| 60 | 4.3 Static test methods 4.4 Dynamic test methods |
| 61 | Tables Table 1 – Characteristics of fire stages (ISO 19706:2011) |
| 62 | 5 Types of test specimen 6 Published static test methods 6.1 General 6.2 Determination of smoke opacity in a 0,51 m3 chamber 6.2.1 Standards which use a vertically oriented test specimen |
| 64 | 6.2.2 Standard which uses a horizontally oriented test specimen |
| 66 | 6.3 Determination of smoke density in a 27 m3 smoke chamber 6.3.1 Standards 6.3.2 Purpose and principle 6.3.3 Test specimen 6.3.4 Method |
| 67 | 6.3.5 Repeatability and reproducibility 6.3.6 Relevance of test data and special observations 7 Published dynamic test methods 7.1 General |
| 68 | 7.2 Determination of smoke density generated by electric cables mounted on a horizontal ladder 7.2.1 Standards 7.2.2 Purpose and principle 7.2.3 Test specimen 7.2.4 Method 7.2.5 Repeatability and reproducibility 7.2.6 Relevance of test data and special observations 7.3 Determination of smoke generated by electrical cables mounted on a vertical ladder 7.3.1 ASTM and UL standards |
| 69 | 7.3.2 European standard |
| 71 | 7.4 Determination of smoke using a cone calorimeter 7.4.1 Standards 7.4.2 Purpose and principle 7.4.3 Test specimen 7.4.4 Method |
| 72 | 7.4.5 Repeatability and reproducibility 7.4.6 Relevance of test data and special observations 7.5 Determination of smoke generated by discrete (non-continuous) products 7.5.1 Standards 7.5.2 Purpose and principle |
| 73 | 7.5.3 Test specimen 7.5.4 Method 7.5.5 Repeatability and reproducibility 7.5.6 Relevance of test data and special observations 8 Overview of methods and relevance of data |
| 74 | Table 2 – Overview of smoke test methods |
| 76 | Annex A (informative)Repeatability and reproducibility data – NBS smoke chamber –Interlaboratory tests from the French standard NF C20-902-1 and NF C20-902-2 Table A.1 – Measurement of Dm |
| 77 | Annex B (informative)Repeatability and reproducibility data –”Three metre cube” smoke chamber –French interlaboratory tests according to IEC 61034-2 Table B.1 – Measurement of transmission expressed as a percentage |
| 78 | Annex C (informative)Repeatability and reproducibility data – NFPA 262 Table C.1 – Measurements of Peak Optical Density Table C.2 – Measurements of Average Optical Density |
| 79 | Bibliography |
