BS EN 1366-9-2008 Fire resistance tests for service installations - Part 9 Single compartment smoke nextraction ducts《服务设施的防火试验 单一隔间的烟雾萃取管》.pdf

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1、BS EN1366-9:2008ICS 13.220.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFire resistancetests for serviceinstallationsPart 9: Single compartment smokeextraction ductsThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCom

2、mittee on 31 August2008 BSI 2008ISBN 978 0 580 59170 9Amendments/corrigenda issued since publicationDate CommentsBS EN 1366-9:2008National forewordThis British Standard is the UK implementation of EN 1366-9:2008.The UK participation in its preparation was entrusted to TechnicalCommittee FSH/22, Fire

3、 resistance tests.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confe

4、r immunityfrom legal obligations.BS EN 1366-9:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1366-9March 2008ICS 13.220.50English VersionFire resistance tests for service installations - Part 9: Singlecompartment smoke extraction ductsEssai de rsistance au feu des installations de service -Pa

5、rtie 9 : Conduits dextraction de fumes relatifs un seulcompartimentFeuerwiderstandsprfungen fr Installationen - Teil 9:Entrauchungsleitungen fr einen EinzelabschnittThis European Standard was approved by CEN on 21 January 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations

6、 which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European

7、Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national s

8、tandards bodies of Austria, Belgium, Bulgaria, Cyprus, 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 K

9、ingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1366-9:2008: EBS EN

10、1366-9:2008EN 1366-9:2008 (E) 2 Contents Page Foreword. 4 Introduction 5 1 Scope 6 2 Normative references . 6 3 Terms and definitions. 7 4 Test equipment 7 4.1 General. 7 4.2 Furnace 7 4.3 Perforated plate. 8 4.4 Inlet nozzles (fire test) 10 4.5 Ambient leakage measuring device 10 4.6 Pressure senso

11、rs for differential pressure control . 10 4.7 Welded connecting tube. 10 4.8 Extract fan connecting duct. 10 4.9 Extraction fan 10 4.10 Thermocouples . 10 4.11 Oxygen measuring equipment 10 4.12 Restraint equipment . 11 4.13 Observation window. 11 5 Test conditions 11 5.1 Differential pressure condi

12、tions 11 5.2 Heating conditions 11 6 Test specimen . 11 6.1 Size . 11 6.1.1 Length 11 6.1.2 Cross-section 11 6.2 Number. 12 6.3 Design 12 7 Installation of test specimen 12 7.1 General. 12 7.2 Standard supporting construction 12 7.3 Duct arrangement . 12 7.4 Restraint of ducts 13 7.5 Perforated plat

13、e. 13 8 Conditioning 13 8.1 General. 13 9 Application of instrumentation 13 9.1 Thermocouples . 13 9.1.1 Furnace thermocouples (plate thermometers) 13 9.1.2 Gas temperature within flow nozzles 14 9.2 Pressure. 14 9.3 Oxygen measurements. 14 9.4 Observations of reduction of cross-section 14 10 Test p

14、rocedure 14 10.1 Pre-test calibration 14 10.1.1 Oxygen-measuring instrument 14 BS EN 1366-9:2008EN 1366-9:2008 (E) 3 10.1.2 Perforated plate. 14 10.2 Leakage measurement at ambient temperature 14 10.3 Fire test 15 10.3.1 Extraction fan 15 10.3.2 Ignition of furnace. 15 10.3.3 Furnace conditions. 15

15、10.3.4 Temperatures and pressures. 15 10.3.5 Oxygen measurements. 15 10.3.6 General observations . 15 10.3.7 Reduction of cross-section 15 10.3.8 Leakage calculations 16 10.3.9 Termination of test 16 11 Performance criteria . 17 11.1 General requirements. 17 11.2 Criteria at ambient temperature. 17

16、11.3 Criteria under fire conditions. 17 11.3.1 General. 17 11.3.2 Leakage 17 11.3.3 Reduction in cross-section 17 11.3.4 Mechanical stability 17 12 Test report . 17 13 Direct field of application of test results 18 13.1 General. 18 13.2 Duct sizes 18 13.3 Hangers 19 13.4 Pressure difference. 19 13.5

17、 Number of sides of duct. 19 Annex A (informative) Measurement of volume/mass flow 30 A.1 Hints on measuring volume flow or mass flow with differential pressure devices . 30 A.2 Density . 30 A.3 Absolute Pressure (barometric pressure) 30 A.4 Viscosity 31 A.5 Characteristic data of the inlet nozzles

18、according to Figure 10 31 Annex B (informative) Measurement of oxygen content 35 Annex C (informative) The usage of correction factors for the consideration of different parameters. 39 BS EN 1366-9:2008EN 1366-9:2008 (E) 4 Foreword This document (EN 1366-9:2008) has been prepared by Technical Commit

19、tee CEN/TC 127 “Fire safety in buildings”, 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 September 2008, and conflicting national standards shall be with

20、drawn at the latest by September 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate

21、 given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of 89/106/EEC Directive. EN 1366 “Fire resistance tests for service installations“ consists of the following Parts: Part 1: Ducts Part 2: Fire dampers Part 3: Penetration seals Part

22、4: Linear joint seals Part 5: Service ducts and shafts Part 6: Raised access and hollow core floors (in course of preparation) Part 7: Conveyor systems and their closures Part 8: Smoke extraction ducts Part 9: Single compartment smoke extraction ducts Part 10: Smoke control dampers (in course of pre

23、paration) Part 11: Protective systems for essential services (in course of preparation) 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, Cyprus, Czech Republic

24、, 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 1366-9:2008EN 1366-9:2008 (E) 5 Introduction This

25、 part of this European Standard has been prepared because a method of test for smoke extraction ducts used in single compartment applications has become necessary. This test exposes a smoke extraction duct to conditions intended to represent the pre-flashover stage of a fire. Leakage is measured at

26、both ambient temperature and exposure at 600 C. During the tests, air/gases are drawn through the duct at a differential pressure between the inside and outside of the duct. Leakage is determined at ambient temperature by sealing the openings in the duct located in the furnace and taking flow measur

27、ements through a flow measuring device located just before the extraction fan. With respect to determining leakage at 600 C, oxygen-measuring techniques are used. CAUTION The attention of all persons concerned with managing and carrying out this fire resistance test is drawn to the fact that fire te

28、sting may be hazardous and that there is a possibility that toxic and/or harmful smoke and gases may be evolved during the test. Mechanical and operational hazards may also arise during the construction of the test elements or structures, their testing and disposal of test residues. An assessment of

29、 all potential hazards and risks to health should be made and safety precautions should be identified and provided. Written safety instructions should be issued. Appropriate training should be given to relevant personnel. Laboratory personnel should ensure that they follow written safety instruction

30、s at all times. BS EN 1366-9:2008EN 1366-9:2008 (E) 6 1 Scope This part of EN 1366 specifies a test method for determining the fire resistance of smoke extraction ducts that are used for single compartment applications only. In such applications, the smoke extraction system is only intended to funct

31、ion up to flashover (typically 600 C). This method of test is only suitable for ducts constructed from non-combustible materials (euro class A1 and A2-s1, d0). It is applicable only to four sided and circular ducts. One, two and three sided ducts are not covered. This test has been designed to cover

32、 horizontal smoke extraction ducts intended for single compartment applications only. This test method of part 9 is applicable only to smoke extraction ducts that do not pass through into other fire compartments. It represents fire exposure of a developing fire (pre-flashover). For smoke extraction

33、ducts that pass through into other compartments, the method of test described in EN 1366-8 should be used. The smoke extraction duct is part of the smoke extraction system which also includes smoke control dampers and smoke extract fans. The method described in this test standard is complex and requ

34、ires sophisticated instrumentation. It is not recommended therefore to try to test multiple assemblies in this test. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated ref

35、erences, the latest edition of the referenced document (including any amendments) applies. EN 1363-1:1999, Fire resistance tests - Part 1: General requirements EN 1363-2, Fire resistance tests - Part 2: Alternative and additional procedures EN 1366-1:1999, Fire resistance tests for service installat

36、ions - Part 1: Ducts EN 1751, Ventilation for buildings - Air terminal devices - Aerodynamic testing of dampers and valves EN 60584-1, Thermocouples - Part 1: Reference tables (IEC 60584- 1:1995) EN ISO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular

37、cross-section conduits running full - Part 1: General principles and requirements (ISO 5167-1:2003) EN ISO 13943:2000, Fire safety - Vocabulary (ISO 13943:2000) ISO 5221, Air distribution and air diffusion - Rules to methods of measuring air flow rate in an air handling duct BS EN 1366-9:2008EN 1366

38、-9:2008 (E) 7 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1363-1:1999 and EN ISO 13943:2000 and the following apply. 3.1 single compartment smoke control system ducts ducts for use within single fire compartment application 3.2 suspension devices

39、the components used for suspending and fixing a duct from a floor soffit or supporting a duct from a wall 3.3 supporting construction the wall, partition or floor which the duct passes through in the test 3.4 single fire compartment fire area of a single compartment building bounded by fire-resistan

40、t walls 3.5 smoke zone (zones) areas into which a construction work is divided for the extraction of smoke and hot gases. Each zone is served by a SHEV (or sub-system of a SHEV), which is initiated by a signal from a single or group of initiation devices associated with the zone 3.6 smoke barrier a

41、barrier to restrict the spread of smoke and hot gases from a fire, forming part of the boundary of a smoke reservoir or used as a channelling screen, or used as a void edge boundary 3.7 compensator a device that is used to prevent damage from the forces generated by expansion 3.8 smoke and heat exha

42、ust ventilation system (SHEVS) system consisting of products and/or components jointly selected to exhaust smoke and heat. The products and/or components form a system in order to establish a buoyant layer of warm gases above cooler cleaner air 4 Test equipment 4.1 General In addition to the test eq

43、uipment specified in EN 1363-1, the equipment in 4.2 and 4.3 is required. The overall test arrangement is shown in Figure 1. Details of instrumentation and other details are shown in Figures 2 to 10. 4.2 Furnace The furnace shall be capable of subjecting fire resisting smoke extraction ducts to the

44、standard heating and pressure conditions specified in EN 1363-1 and be suitable for testing ducts in the horizontal orientation (see Figure 1). BS EN 1366-9:2008EN 1366-9:2008 (E) 8 4.3 Perforated plate The perforated plate controls the flow through the duct so that the required differential pressur

45、e, see Table 1, can be achieved. Depending on the end-use conditions, a pressure level from Table 1 shall be selected. These levels correspond to typical values used in smoke extraction design. The plate shall be positioned (250 50) mm from where the duct passes through the furnace wall (see Figures

46、 1 and 2). These plates shall be made from heat resisting steel, 19 % min. Cr content and 11 % min. Ni content. The number of holes and dimensions are given in Tables 2 and 3. The thickness of the plates shall be 2,5 mm. Table 2 gives details of perforated plates for standard rectangular ducts of si

47、ze 1 000 mm x 250 mm. For smaller sizes, the number of holes will be reduced proportional to the smaller cross-section. Table 3 gives details of perforated plates for standard circular ducts of diameter 560 mm. For smaller sizes, the number of holes will be reduced proportional to the cross-section

48、(a change to larger sizes is not accepted; see 6.1.2 and Table 5). Further details of the plate are shown in Figures 2, 3 and 4. Table 1 Differential pressures between inside and outside the duct for smoke extraction ductwork Pressure Level1)Operating differential pressure at ambient temperature Pa

49、Differential pressure for the fire test and pre-test calibration Pa 1 -500 -150 2 -1 000 -300 3 -1 500 -500 Table 2 Details of perforated plates for testing rectangular ducts (see Figure 3) Pressure level1) Specification for perforations 1 2 3 Total number of holes 550 407 324 Number of holes - horizontally 50 37 36 Number of holes - vertically 11 11 9 Diameter of hole (mm) 10 10 10 Horizontal distance from rim e (mm) 15 15 20 Vertical distance from rim c (mm) 15 15 20 Mounting hole separation a (mm) 19,8 26,9 27,4 Mounting hole separation b (mm) 21,8 22 26,3 1) s