BS-EN-13821-2002.pdf
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1、BRITISH STANDARD BS EN 13821:2002 Potentially explosive atmospheres Explosion prevention and protection Determination of minimum ignition energy of dust/air mixtures The European Standard EN 13821:2002 has the status of a British Standard ICS 13.230 ? Licensed Copy: sheffieldun sheffieldun, na, Sun
2、Oct 29 09:21:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13821:2002 This British Standard, having been prepared under the direction of the Health and Environment Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 29 Novem
3、ber 2002 BSI 29 November 2002 ISBN 0 580 40872 8 National foreword This British Standard is the official English language version of EN 13821:2002. The UK participation in its preparation was entrusted to Technical Committee FSH/23, Fire precautions in industrial and chemical plant, which has the re
4、sponsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled
5、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance wit
6、h a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related internat
7、ional and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was las
8、t issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:21:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13821 November 2002 ICS 13.230 English version Potentially explosive atm
9、ospheres - Explosion prevention and protection - Determination of minimum ignition energy of dust/air mixtures Atmosphres explosibles - Prvention et protection contre lexplosion - Dtermination de lnergie minimale dinflammation des mlanges poussire/air Explosionsfhige Atmosphren - Explosionsschutz -
10、Bestimmung der Mindestzndenergie von Staub/Luft- Gemischen This European Standard was approved by CEN on 16 October 2002. CEN 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 witho
11、ut any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made
12、 by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ir
13、eland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitatio
14、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13821:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:21:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13821:2002 (E) 2 Contents page Foreword3 1Scope 3 2Normative references 3 3Terms and defi
15、nitions3 4Test apparatus4 4.1Spark generation circuit4 4.2Test vessel5 5Test sample 5 6Test procedure.5 6.1Test description .5 6.2Calibration 6 6.3Conformity7 6.3.1Conformity tests.7 6.3.2Criteria for conformity7 6.4Test report 8 Annex A (normative) Descriptions of spark generating systems9 A.1Gener
16、al9 A.2Triggering by high-voltage relay, using a two-electrode system .9 A.3Triggering by electrode movement, using a two-electrode system.10 A.4Triggering by auxiliary spark, using 3-electrode system 11 A.5Triggering by voltage increase, using two-electrode system.12 A.6Triggering by transformer, u
17、sing two-electrode system.13 A.7Example of a test apparatus.14 Annex ZA (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives15 Bibliography16 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:21:09 GMT+00:00 2006, Uncontrolled
18、 Copy, (c) BSI EN 13821:2002 (E) 3 Foreword This document EN 13821:2002 has been prepared by Technical Committee CEN /TC 305 “Potentially explosive atmospheres - Explosion prevention and protection“, the secretariat of which is held by DIN. This European Standard shall be given the status of a natio
19、nal standard, either by publication of an identical text or by endorsement, at the latest by May 2003, and conflicting national standards shall be withdrawn at the latest by May 2003. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade
20、Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document. Annex A is normative. This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the nation
21、al standards organizations of the following countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United King
22、dom. 1 Scope This European Standard specifies a method of test to determine the minimum ignition energy of a dust/air mixture by an electrically-generated spark. The test method is not suitable for use with recognised explosives, gunpowder, dynamite, explosives which do not require oxygen for combus
23、tion; pyrophoric substances, or substances or mixtures of substances which can under some circumstances behave in a similar manner. Where any doubt exists about the existence of a hazard due to explosive properties, expert advice should be sought. WARNING It is essential that precautions are taken t
24、o safeguard the health of personnel conducting the tests against the risk of fire, explosion and/or toxic effects, of combustion products. 2 Normative references There are no normative references. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions
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