BS EN 60695-11-5:2017 – TC:2020 Edition
$186.33
Tracked Changes. Fire hazard testing – Test flames. Needle-flame test method. Apparatus, confirmatory test arrangement and guidance
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 59 |
IEC 60695-11-5:2016 is also available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. 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referenced source; – The reference for the copper block material has changed – the ISO publication (ISO 1337) has been withdrawn with no replacement.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 /2 and ISO/IEC Guide 51.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 31 | National foreword |
| 36 | English CONTENTS |
| 38 | FOREWORD |
| 40 | INTRODUCTION |
| 41 | 1 Scope 2 Normative references |
| 42 | 3 Terms and definitions |
| 44 | 4 Purpose of the test 5 Description of the test apparatus 5.1 Burner 5.2 Gas supply 5.3 Flame 5.4 Control valve 5.5 Laboratory fumehood/chamber |
| 45 | 5.6 Layer 5.6.1 Specified layer 5.6.2 Standardized layer 5.7 Timing device 6 Test specimen 7 Flame application times |
| 46 | 8 Conditioning and test conditions 8.1 Conditioning 8.2 Test conditions 9 Test procedure 9.1 General 9.2 Position of test specimen 9.3 Application of needle-flame |
| 47 | 9.4 Number of test specimens 10 Observations and measurements 11 Evaluation of test results 12 Information to be given in the relevant specification |
| 48 | 13 Test report Figure 1 – Burner and flame |
| 49 | Figure 2 – Test positions |
| 50 | Annex A (normative) Confirmatory test arrangement A.1 Confirmation of the test flame – Principle A.2 Test apparatus A.2.1 Burner A.2.2 Control valve A.2.3 Copper block A.2.4 Thermocouple A.2.5 Temperature/time indicating/recording devices A.3 Procedure |
| 52 | Figures Figure A.1 – Copper block |
| 53 | Figure A.2 – Confirmatory test arrangement |
| 54 | Figure A.3 – Gauge to measure flame height and the distancebetween burner and copper block (example) |
| 55 | Annex B (informative) Example of a product committee specification Tables Table B.1 – Severities and requirements |
| 56 | Annex C (informative) Comparison of results of confirmatory tests using propane and butane as fuel Table C.1 – Results of the confirmatory test using propane and butane as fuel |
| 57 | Bibliography |
