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1、BRITISH STANDARD BS EN 1366-8:2004 Fire resistance tests for service installations Part 8: Smoke extraction ducts The European Standard EN 1366-8:2004 has the status of a British Standard ICS 13.220.50 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Cop
2、y, (c) BSI BS EN 1366-8:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 August 2004 BSI 4 August 2004 ISBN 0 580 44199 7 National foreword This British Standard is the official English language version of EN 1366-8:2004. The UK partici
3、pation in its preparation was entrusted to Technical Committee FSH/22, Fire resistance tests, which has the responsibility 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 Eu
4、ropean publications referred to in this document may be found in the BSI Catalogue under the section entitled “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
5、 all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with 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 enquirie
6、s on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international 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 37 and a back cove
7、r. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE E
8、UROPISCHE NORM EN 1366-8 July 2004 ICS 13.220.50 English version Fire resistance tests for service installations - Part 8: Smoke extraction ducts Essai de rsistance au feu des installations de service - Partie 8: Conduits dextraction de fumes Feuerwiderstandsprfungen fr Installationen - Teil 8: Entr
9、auchungsleitungen This European Standard was approved by CEN on 1 April 2004. 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 without any alteration. Up-to-date lists and bibl
10、iographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility o
11、f a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
12、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, 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
13、2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1366-8:2004: E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 2 Contents Page Foreword 4 Introductio
14、n5 1 Scope.6 2 Normative references.6 3 Terms and definitions 7 4 Test equipment.7 4.1 General 7 4.2 Furnace7 4.3 Perforated plate 7 4.4 Inlet nozzles 9 4.5 Ambient temperature leakage measuring device9 4.6 Pressure sensors for differential pressure control.9 4.7 Welded connecting tube9 4.8 Extracti
15、on fan connecting duct.9 4.9 Extraction fan9 4.10 Thermocouples.9 4.11 Surface thermocouples9 4.12 Oxygen measuring equipment10 4.13 Restraining equipment.10 4.14 Observation window.10 5 Test conditions.10 6 Test specimen.10 6.1 Size.10 6.2 Number 11 6.3 Design11 7 Installation of test specimen .11
16、7.1 General 11 7.2 Standard supporting construction .11 7.3 Duct arrangement.12 7.4 Restraint of ducts.12 7.5 Perforated plate 13 8 Conditioning13 8.1 General 13 8.2 Hygroscopic sealing materials13 9 Application of instrumentation .13 9.1 Thermocouples.13 9.2 Pressure 13 9.3 Oxygen measurements14 9.
17、4 Observations on reduction of cross-section.14 10 Test procedure14 10.1 Pre-test calibration.14 10.2 Leakage measurement at ambient temperature14 10.3 Fire test15 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 3 11 Perfo
18、rmance criteria16 11.1 General requirements16 11.2 Criteria at ambient temperature16 11.3 Criteria under fire conditions17 12 Test report 17 13 Direct field of application of test results .18 13.1 General18 13.2 Vertical and horizontal ducts18 13.3 Sizes of ducts.18 13.4 Pressure difference19 13.5 N
19、umber of sides of duct19 Figure 6 Arrangement of gas-testing probes25 Annex A (informative) Surface temperature and volume/mass flow measurements.33 Bibliography 37 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 4 Forewor
20、d This document (EN 1366-8:2004) has been prepared by Technical Committee 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
21、 by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the Construction Products Dir
22、ective. 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 4: Linear joint seals (in course of preparation) Part 5: Service ducts and shafts Part 6: Raised access and hollow core floors (in course
23、 of preparation) Part 7: Conveyor systems and their closures Part 8: Smoke extraction ducts Part 9: Single compartment smoke extraction ducts (in course of preparation) Part 10: Smoke control dampers (in course of preparation) Part 11: Fire protective systems for essential services (in course of pre
24、paration). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
25、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 5 Introduction This Part of t
26、his document has been prepared because a method of test for fire resisting smoke extraction ducts has become necessary to evaluate the ability of fire resisting ducts already tested to EN 1366-1 to function adequately as smoke extraction ducts. Leakage is measured at both ambient and elevated temper
27、atures. 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 measurements through a flow-measuring device l
28、ocated just before the extraction fan. With respect to determining leakage at elevated temperatures, oxygen measuring techniques are used. The method described in this test is complex and requires sophisticated instrumentation. It is not recommended therefore to try to test multiple assemblies in th
29、is test. CAUTION: The attention of all persons concerned with managing and carrying out this fire resistance test is drawn to the fact that fire testing 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 operation
30、al hazards may also arise during the construction of the test elements or structures, their testing and disposal of test residues. An assessment of all potential hazards and risks to health should be made and safety precautions shall be identified and provided. Written safety instructions should be
31、issued. Appropriate training should be given to relevant personnel. Laboratory personnel should ensure that they follow written safety instructions at all times. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 6 1 Scope Th
32、is Part of this document specifies a test method for determining the fire resistance of smoke extraction ducts. It is applicable only to smoke extraction ducts that pass through another fire compartment from the fire compartment to be extracted in case of fire. It represents fire exposure of a fully
33、 developed fire. This method of test is only applicable to fire resisting ducts that have passed the test for the appropriate period to EN 1366-1 (ducts A and B). For duct A, it is a requirement for fire resisting smoke extraction ducts that the document under pressure of 300 Pa, as given in EN 1366
34、-1 is increased to 500 Pa when testing to EN 1366-1. For the purposes of the test described in this document, the duct is referred to as duct C. This test has been designed to cover both vertical and horizontal smoke extraction ducts. However, provided both horizontal and vertical tests have been ca
35、rried out to EN 1366-1 on the specific system, a vertical system need not be evaluated to this method provided it has been tested in a horizontal orientation to this method. However, if the system in practice is only to be used for vertical applications in smoke extraction systems, then it will need
36、 to be tested in a vertical orientation to this method. This method of test is only suitable for ducts constructed from non-combustible materials (Euroclass A1 and A2). It is applicable only to four sided ducts; one, two and three sided ducts are not covered. 2 Normative references The following ref
37、erenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1363-1:1999, Fire resistance tests - Part 1: General requiremen
38、ts EN 1366-1:1999, Fire resistance tests for service installations - Part 1: Ducts prEN 1507, Ventilation for buildings - Sheet metal air ducts with rectangular section - Requirements for strength and leakage EN ISO 5167, Measurement of fluid flow by means of pressure differential devices inserted i
39、n circular cross-section conduits running full (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. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35
40、:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (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 smoke extraction duct duct used for the extraction of smoke in case of f
41、ire and designed to provide a degree of fire resistance 3.2 suspension devices components used for suspending and fixing a duct from a floor or supporting a duct from a wall 3.3 supporting construction wall, partition or floor through which the duct passes in the test 3.4 compensator device that is
42、used to prevent damage from the forces generated by expansion (see EN 1366-1 for guidance) 4 Test equipment 4.1 General In addition to the test equipment specified in EN 1363-1, the equipment in 4.2 to 4.14 is required. The overall test arrangement is shown in Figures 1 and 2. Details of instrumenta
43、tion and other details are shown in Figures 3 to 13. 4.2 Furnace The furnace shall be capable of subjecting fire resisting smoke extraction ducts to the standard heating and pressure conditions specified in EN 1363-1 and be suitable for testing ducts in the horizontal (see Figure 1) or vertical (see
44、 Figure 2) orientation. 4.3 Perforated plate The perforated plate controls the flow through the duct so that the required differential pressure, 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 valu
45、es used in smoke extraction design. The plate shall be positioned (250 50) mm from where the duct passes through the furnace wall or roof, see Figures 1 and 2. The plates shall be made from heat resisting steel, 19 % min. Cr content and 11 % min. Ni content. The number of holes and dimensions are gi
46、ven in Tables 2 and 3. The thickness of the plates shall be 2,5 mm. NOTE 1 Table 2 gives details of perforated plates for standard rectangular ducts of size 1 000 mm x 250 mm. For smaller sizes the number of holes will be reduced proportional to the smaller cross section. NOTE 2 Table 3 gives detail
47、s 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 (a change to larger sizes is not permitted; see 6.1.2 and Table 5). Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 09:35:50 GMT+00:00
48、 2006, Uncontrolled Copy, (c) BSI EN 1366-8:2004 (E) 8 Further details of the plate are shown in Figures 3, 4 and 5. Table 1 Differential pressures between inside and outside the duct for smoke extraction ductwork Pressure level Operating differential pressure at ambient temperature Pa Differential
49、pressure for 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 level 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 sep