EN 12881-2-2005 en Conveyor belts - Fire simulation flammability testing - Part 2 Large scale fire test (Incorporates Amendment A1 2008)《传送带 火灾模拟易燃性测试 第2部分 大范围火灾试验》.pdf
《EN 12881-2-2005 en Conveyor belts - Fire simulation flammability testing - Part 2 Large scale fire test (Incorporates Amendment A1 2008)《传送带 火灾模拟易燃性测试 第2部分 大范围火灾试验》.pdf》由会员分享,可在线阅读,更多相关《EN 12881-2-2005 en Conveyor belts - Fire simulation flammability testing - Part 2 Large scale fire test (Incorporates Amendment A1 2008)《传送带 火灾模拟易燃性测试 第2部分 大范围火灾试验》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARDBS EN 12881-2:2005 +A1:2008Conveyor belts Fire simulation flammability testing Part 2: Large scale fire testICS 13.220.40; 53.040.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39
2、g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 12881-2:2005+A1:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 22 February 2006 BSI 2008ISBN 978 0 580 60680 9National forewordThis British Standard is the UK implementation of EN 128
3、81-2:2005+A1:2008. It supersedes BS EN 12881-2:2005 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indica
4、ted by !“.The UK participation in its preparation was entrusted to Technical Committee PRI/67, Conveyor belts. A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Us
5、ers are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate Comments31 July 2008 Implementation of CEN amendment A1:2008EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12881-
6、2:2005+A1 April 2008 ICS 13.220.40; 53.040.20 Supersedes EN 12881-2:2005 English Version Conveyor belts - Fire simulation flammability testing - Part 2: Large scale fire test Courroies transporteuses - Essais de simulation dinflammation - Partie 2: Essai au feu grande chelle Frdergurte - Brandtechni
7、sche Prfungen - Teil 2: Brandstreckenprfung This European Standard was approved by CEN on 21 March 2005 and includes Amendment 1 approved by CEN on 21 February 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan
8、dard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, Frenc
9、h, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus,
10、Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT
11、EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12881-2:2005+A1:2008: EEN 12881-2:2005+A1:2008 (E) 2 Contents page
12、Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Apparatus .5 4 Preparation .5 4.1 Test piece .5 4.2 Temperature before the test .5 4.3 Number of tests5 5 Procedure .6 6 Interpretation of results 6 7 Test report 6 Annex ZA (informative) Relationship between this European Standard and t
13、he Essential Requirements of EU Directive 98/37/EC 9 Annex ZB (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC“.10 BS EN 12881-2:2005+A1:2008EN 12881-2:2005+A1:2008 (E) 3 Foreword This document (EN 12881-2:2005+A1:2008) has been pre
14、pared by Technical Committee CEN/TC 188 “Conveyor belts”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards
15、shall be withdrawn at the latest by October 2008. This document supersedes EN 12881-2:2005. This document includes Amendment 1, approved by CEN on 2008-02-21. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This European Standard has been prepared
16、 under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directives, see informative Annexes ZA and ZB, which are integral parts of this document.“ The other part of EN 12281 is
17、: !EN 12881-1+A1:2008“, Conveyor belts Fire simulation flammability testing Part 1: Propane burner tests According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cypru
18、s, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 12881-2:2005+A1:2008EN 12881-2:2
19、005+A1:2008 (E) 4 Introduction The method of test described in this part of EN 12881 is intended to provide an indication of the reaction of a conveyor belt when exposed to a large fire. The fire being simulated is one not caused by a local heat source but by materials around the conveyor belt which
20、 catch fire following exposure to other heat sources. Attention is drawn to the fact that in assessing the overall flammability characteristics of conveyor belting for specific installations, it is not sufficient to rely solely on any single method of test but consideration should also to be given t
21、o the individual site location. BS EN 12881-2:2005+A1:2008EN 12881-2:2005+A1:2008 (E) 5 1 Scope This part of EN 12881 describes a method of test for the assessment of fire propagation along a conveyor belt when the belt is exposed to a heat source. 2 Normative references The following referenced doc
22、uments are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 60584-1, Thermocouples - Part 1: Reference tables (IEC 60584-1:19
23、95) ISO 3130, Wood Determination of moisture content for physical and mechanical tests 3 Apparatus 3.1 Fire gallery lined with fire clay bricks having a cross sectional area of 8 m2and a length of at least 70 m . The fuel in the fire object area shall be supported by four steel arches 1 m apart (see
24、 Figures 1a) and 1b). 3.2 Trestle for positioning the conveyor belt in the fire gallery during the test. The trestle shall be 18 m long and 1,2 m wide having idlers with a pitch of 1,5 m and a troughing angle of 30. 3.3 Fire object comprising a) 260 kg of air-dried coniferous wood in the form of rou
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