BS ISO 10294-5-2005 Fire-resistance tests - Fire dampers for air distribution systems - Intumescent fire dampers《耐火试验 用于空气分配系统的防火阀 膨胀防火阀》.pdf

1、BRITISH STANDARD BS ISO 10294-5:2005 Fire resistance tests Fire dampers for air distribution systems Part 5: Intumescent fire dampers ICS 13.220.50; 91.140.30 BS ISO 10294-5:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 11 April 2005 B

2、SI 11 April 2005 ISBN 0 580 45781 8 National foreword This British Standard reproduces verbatim ISO 10294-5:2005 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee FSH/22, Fire resistance tests, to Subcommittee FSH/22/4, Test p

3、rocedures for dampers, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalog

4、ue 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 all the necessary provisions of a contract. Users are responsible for its corre

5、ct 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 enquiries on the interpretation, or proposals for change, and keep the UK interests info

6、rmed; 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 ISO title page, pages ii to iv, pages 1 to 24, an inside back cover and a back cover. The BSI copyright notice displayed in

7、this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 10294-5:2005(E) OSI 5002INTERNATIONAL STANDARD ISO 10294-5 First edition 2005-03-01 Fire resistance tests Fire dampers for air distribution systems Part 5: Intum

8、escent fire dampers Essais de rsistance au feu Clapets coupe-feu pour systmes de distribution dair Partie 5: Clapets rsistants au feu intumescent BSISO102945:2005IS-49201 O5:(5002E) DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. In ccaocnadrw eith Aebods licensilop gnic,y this file mai

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13、+ 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dnaii ISO 5002 Allr ithgsr esedevrBSISO102945:2005IS-49201 O5:(5002E) I SO 5002 All irthgs ersedevr iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Terms and definitions. 2 4 Procedure. 2 5 Test report 7 Annex

14、 A (normative) Durability. 9 Annex B (informative) Test apparatus 10 Annex C (informative) The use and application of intumescent fire dampers in ducted air distribution systems . 18 BSISO102945:2005IS-49201 O5:(5002E) iv I SO 5002 All irthgs ersedevrForeword ISO (the International Organization for

15、Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the r

16、ight to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Internation

17、al Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as

18、 an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. IS

19、O 10294-5 was prepared by Technical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire containment. ISO 10294 consists of the following parts, under the general title Fire resistance tests Fire dampers for air distribution systems: Part 1: Method of test Part 2: Classification, criteria and f

20、ield of application of test results Part 3: Guidance on the test method Part 4: Test of thermal release mechanism Part 5: Intumescent fire dampers BSISO102945:2005INTENRATIONAL TSANDADR IS-49201 O5:(5002E)I SO 5002 All irthgs ersedevr 1Fire resistance tests Fire dampers for air distribution systems

21、Part 5: Intumescent fire dampers CAUTION The attention of all persons concerned with managing and carrying out this fire resistance test is drawn to the fact that fire testing can be hazardous and that there is a possibility that toxic and/or harmful smoke and gases can be evolved during the test. M

22、echanical and operational hazards can 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 shall be made and safety precautions shall be identified and provided. Written safety i

23、nstructions shall be issued. Appropriate training shall be given to relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times. 1 Scope This part of ISO 10294-5 describes the test requirements related to intumescent fire dampers. It identifies the

24、 minor modifications needed to adapt the test method described in ISO 10294-1 (which was intended for mechanical dampers) to suit intumescent fire dampers. Additional tests are included to give an assessment of the operational reliability of intumescent fire dampers. This test is intended for intume

25、scent fire dampers that are expected to be classified as EI dampers in accordance with ISO 10294-2. Without the addition of a mechanical damper, they are unable to achieve the “S” classification, which includes a leakage limit imposed at ambient temperatures. 2 Normative references The following ref

26、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. ISO 10294-1:1996, Fire resistance tests Fire dampers for air distr

27、ibution systems Part 1: Test method ISO 10294-2:1999, Fire resistance tests Fire dampers for air distribution systems Part 2: Classification, criteria and field of application of test results ISO 10294-3:1999, Fire resistance tests Fire dampers for air distribution system Part 3: Guidance on the tes

28、t method ISO 10294-4: 2001, Fire resistance tests Fire dampers for air distribution systems Part 4: Test of thermal release mechanism ISO 13943, Fire safety Vocabulary BSISO102945:2005IS-49201 O5:(5002E) 2 I SO 5002 All irthgs ersedevr3 Terms and definitions For the purposes of this document, the te

29、rms and definitions given in ISO 13943 and the following apply. 3.1 intumescent term describing the phenomenon of expansion in excess of normal thermal expansion under the action of heat normally generated by the fire 3.2 intumescent fire dampers non-mechanical device, installed in a ducted system t

30、hat intumesces when exposed to hot gases and acts as a barrier to fire and hot smoke 3.3 intumescent sheet intumescent material manufactured in rigid or flexible thin sections, typically 1 mm to 4 mm thick, usually cut into strips for incorporation into the fire damper 3.4 covered intumescent partly

31、 enclosed intumescent material to provide protection, modify the behaviour, improve the surface finish and/or enhance the aesthetics of the fire damper 3.5 skinned intumescent material totally enclosed intumescent material on all faces and edges to provide protection, modify the behaviour and improv

32、e the surface finish and/or the aesthetics of the fire damper 3.6 specially shaped intumescent intumescent material formed into special contours by extrusion, dipping, moulding, machining or spraying onto formers or mandrills 4 Procedure 4.1 General considerations 4.1.1 Apparatus The apparatus for t

33、he fire test shall be as described in ISO 10294-1:1996. As intumescent dampers give off some moisture, a suitable condensing device shall be installed before the flow-measuring device. This will be deemed to be effective if the gas temperature within the flow-measuring device does not exceed 40 C at

34、 any time during the test. 4.1.2 Test specimen The damper with the largest dimensions to be manufactured shall be tested. Where it is intended that multiple intumescent dampers will be used in a duct having a size greater than the individual damper size, the maximum number of dampers in the maximum-

35、sized duct including all mullions and transoms together with any other supporting structure shall be tested. BSISO102945:2005IS-49201 O5:(5002E) I SO 5002 All irthgs ersedevr 34.1.3 Test procedure 4.1.3.1 General procedure and criteria Other than the exceptions stated below, carry out the test in ac

36、cordance with ISO 10294-1. The criteria with respect to integrity and insulation shall be as specified in ISO 10294-2. 4.1.3.1.1 Opening and closing cycles The 50 opening and closing cycles specified are not applicable to this product. NOTE The reason for the 50-cycle test for mechanical dampers is

37、to demonstrate the likelihood of their functioning when called upon to do so, without jamming or disintegrating. Clearly a product that is activated by an irreversible chemical activity cannot be activated more than once. There are no parts moving mechanically in an intumescent fire damper, only the

38、 swelling of the intumescent material when activated by heat. 4.1.3.1.2 Time to close There is no requirement for the damper to close before 2 min, but it shall satisfy leakage requirements after 5 min into the test. NOTE The 2 min limit in the test for mechanical dampers is the time beyond which it

39、 is deemed that dampers that have not closed will not do so; therefore, continuation of the test would be irrelevant. Since the time deemed necessary for the furnace to stabilize is 5 min and no sensor values are considered accurate enough to record until that time has elapsed, the 2 min period has

40、no relevance in the case of intumescent dampers. 4.1.3.1.3 Condensing device A suitable condensing device may be considered to be a water tank fed with water at ambient temperature with about 9 m of measuring duct immersed in the tank prior to reaching the measuring device. 4.2 Reaction to fire test

41、s Intumescent materials 4.2.1 General To ensure some equivalence with a mechanical damper, the following tests are described that allow an assessment of the reliability of intumescent materials used for intumescent fire dampers. These tests can be used as an initial type test to get the performance

42、of an intumescent material tested. The result is normally used to define the specification for the material. In this case 10 specimens shall normally be tested. For the purpose of factory control, two specimens are normally used to show compliance with the specification. Thermal activation and fault

43、y set-off are normally tested only in the course of the initial type test but all three alternatives for “expansion pressure” are suitable tests for factory control. Expansion pressure is normally determined at various temperatures during the initial type test to find out the range of minimum temper

44、ature dependence. For the purposes of factory production control these tests are normally conducted at a temperature in the range of temperature independence to ensure that the effect of temperature variation on the results is minimized. Complete components or sections of components of the damper, i

45、n sufficient quantity to complete the range of testing required by the test authority and manufacturer, shall be nominated as representative specimens for initial type testing and all subsequent production control conformity tests, as dictated by local certification/approval needs. Sample sets shall

46、 be placed in ambient laboratory conditions consisting of a temperature of 23 C 4 C and a humidity of 50 % for a minimum of seven days. BSISO102945:2005IS-49201 O5:(5002E) 4 I SO 5002 All irthgs ersedevr4.2.2 Thermal activation temperature test 4.2.2.1 General This test is used to assess the activat

47、ion temperature of the intumescent material used in the damper. 4.2.2.2 Apparatus 4.2.2.2.1 Oven, with an operating temperature range of 25 C to 350 C to within better than 3 C. 4.2.2.2.2 Temperature-measuring and display device for the oven, with an accuracy of 1 C. 4.2.2.3 Test specimens Three spe

48、cimens of the smallest-sized damper in the range of critical reactive intumescent components shall be tested. 4.2.2.4 Test method Each specimen or critical reactive component shall be placed in the oven. The oven shall be set at 30 C below the activation temperature given by the manufacturer for the

49、 intumescent material under test. The oven temperature shall be maintained for at least 15 min and intumescent activity observed. Should no intumescent development occur, the temperature shall be increased by increments of 5 C and maintained for a minimum of 15 min at each stage until activation does commence. 4.2.3 Faulty set-off 4.2.3.1 General This test method is intended to cover standard operat