BS ISO 21927-1-2008 Smoke and heat control systems - Specification for smoke barriers《烟和热控制系统 挡烟隔板规格》.pdf

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1、BS ISO21927-1:2008ICS 13.220.20,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDSmoke and heatcontrol systemsPart 1: Specification for smokebarriersThis British Standardwas published underthe authority of theStandards Policy andStrategy Committee on 30November 2

2、008 BSI 2008ISBN 978 0 580 54817 8Amendments/corrigenda issued since publicationDate CommentsBS ISO 21927-1:2008National forewordThis British Standard is the UK implementation of ISO 21927-1:2008.The UK participation in its preparation was entrusted to TechnicalCommittee FSH/25, Smoke, heat control

3、systems and components.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

4、confer immunityfrom legal obligations.BS ISO 21927-1:2008Reference numberISO 21927-1:2008(E)ISO 2008INTERNATIONAL STANDARD ISO21927-1First edition2008-01-15Smoke and heat control systems Part 1: Specification for smoke barriers Systmes pour le contrle des fumes et de la chaleur Partie 1: Spcificatio

5、ns des crans de fume BS ISO 21927-1:2008ISO 21927-1:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the

6、 computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to

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8、m the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without

9、permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2008 All rights

10、reservedBS ISO 21927-1:2008ISO 21927-1:2008(E) ISO 2008 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Normative references 1 3 Terms and definitions .2 4 Symbols 4 5 Product requirements .5 5.1 General5 5.2 Barrier types.5 5.3 Auxiliary power supply .6 5.4 Smoke (fire e

11、ffluent) leakage6 5.5 Reliability7 5.6 Response time .7 6 Performance requirements and classifications7 6.1 General7 6.2 Temperature/time classification.7 6.3 Reliability and durability of smoke barriers8 6.4 Response time of active smoke barriers.9 6.5 Smoke leakage (containment efficiency) 9 7 Con

12、formity assessment 15 7.1 General15 7.2 Initial type testing 16 7.3 Factory production control (FPC) 16 8 Installation 17 9 Maintenance .18 10 Marking and labelling 18 Annex A (normative) General testing requirements19 Annex B (normative) Reliability and response time tests.21 Annex C (normative) Pe

13、rmeability of materials to smoke 23 Annex D (normative) Temperature/time resistance tests .24 Annex E (informative) Deflection of smoke barriers29 Annex F (normative) Special classification categories at 300 C 36 Bibliography 37 BS ISO 21927-1:2008ISO 21927-1:2008(E) iv ISO 2008 All rights reservedF

14、oreword ISO (the International Organization for 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 te

15、chnical committee has been established has the right 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

16、of electrotechnical standardization. International 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

17、 to the member bodies for voting. Publication as 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 f

18、or identifying any or all such patent rights. ISO 21927-1 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting, Subcommittee SC 11, Smoke and heat control systems and components. ISO 21927 consists of the following parts, under the general title Smoke and he

19、at control systems: Part 1: Specification for smoke barriers Part 2: Specification for natural smoke and heat exhaust ventilators Part 3: Specification for powered smoke and heat exhaust ventilators A Part 4, dealing with specifications for smoke ducts, a Part 5, dealing with specifications for smok

20、e dampers, a Part 6, dealing with specifications for control panels and a part 7, dealing with specifications or guidelines for power supplies are planned. BS ISO 21927-1:2008ISO 21927-1:2008(E) ISO 2008 All rights reserved vIntroduction General Smoke and heat exhaust ventilation systems (SHEVS) cre

21、ate a smoke-free layer above the floor by removing smoke and heat and thus improve the conditions for the safe escape and/or rescue of people and animals and the protection of property and permit the fire to be fought while still in its early stages. The use of smoke and heat exhaust ventilation sys

22、tems to create smoke-free areas beneath a buoyant smoke layer has become widespread. Their value in assisting in the evacuation of people from construction works, reducing fire damage and financial loss by preventing smoke logging, facilitating fire fighting, reducing roof temperatures and retarding

23、 the lateral spread of fire is firmly established. To obtain these benefits, it is essential that SHEVS operate fully and reliably whenever called upon to do so during their installed life. A SHEVS is a scheme of safety equipment intended to perform a positive role in a fire emergency. It is importa

24、nt that the components for smoke and heat exhaust systems be installed as part of a properly designed smoke and heat exhaust system. SHEVS help to keep the escape and access routes free from smoke, facilitate fire fighting operations by creating a smoke-free layer, delay and/or prevent flashover and

25、 thus full development of the fire, protect equipment and furnishings and contents, reduce thermal effects on structural components during a fire, reduce damage caused by thermal decomposition products and hot gases. For the purpose of this part of ISO 21927, a smoke barrier is deemed to be any form

26、 of barrier to the movement of fire effluent. Smoke barriers control the movement of fire effluent within a construction works in the event of fire. Smoke barriers, when used within a smoke and heat control system, become a critical element of that system. If smoke barriers are not in their fire-ope

27、rational position, the system does not perform as designed. However, even in the event that other elements of the SHEVS do not function, smoke barriers in the fire operational position provide essential smoke containment and channelling. This part of ISO 21927 applies to smoke barriers used within s

28、moke and heat control systems, which include other equipment, e. g. natural smoke and heat exhaust ventilators (ISO 21927-2) and powered smoke and heat exhaust ventilators (ISO 21927-3). Smoke barriers perform within specific time/temperature ranges. Function of smoke barriers The function of smoke

29、barriers is to control the movement of fire effluent within construction works by forming a barrier. The functions of active or manually deployed smoke barriers are identical to those of static smoke barriers, but they also can be retracted and concealed when not in use. Typical functions of smoke b

30、arriers are to create a smoke reservoir by containing and limiting the travel of the smoke; BS ISO 21927-1:2008ISO 21927-1:2008(E) vi ISO 2008 All rights reserved channel smoke in a pre-determined direction; prevent or retard smoke entry to another area or void. Applications of smoke barriers The pr

31、imary applications of smoke barriers are listed below. However, as their application becomes more widespread, it is inevitable they will be put to a wider variety of uses. It is important to note that, within the scope of this part of ISO 21927, smoke barriers can contain smoke and gases in excess o

32、f 600 C but are not intended to perform the same function as fire doors and shutters tested in accordance with ISO 3008 or smoke-control doors tested in accordance with ISO 5925-1. Typical applications for smoke barriers are as smoke reservoir boundaries, channelling screens, void edge screens, void

33、 sealing screens, corridor containment, shop unit containment, escalator containment, stairwell containment, elevator well containment. Types of smoke barrier Construction-works elements can be used to create static smoke barriers and they can be augmented by smoke barriers covered by this part of I

34、SO 21927. This part of ISO 21927 applies to the following types of smoke barriers: static smoke barriers (SSB), active smoke barriers (ASB). A wide range of different materials can be used to create smoke barriers. Typical materials used for static smoke barriers include fabric, glass, metal, fire-r

35、esisting board, fibreglass and mineral wool or any impermeable material capable of resisting smoke at temperatures required by the design. Typical examples of active smoke barriers include roller, pleated, folding, hinged or sliding, using the types of material as described for static smoke barriers

36、. Static and active smoke barriers are categorized by type and performance in Clause 5. In addition, an ASB product is deemed to include all controlling equipment, etc. This does not include external controls, for example a fire alarm or a sprinkler flow switch. BS ISO 21927-1:2008INTERNATIONAL STAN

37、DARD ISO 21927-1:2008(E) ISO 2008 All rights reserved 1Smoke and heat control systems Part 1: Specification for smoke barriers 1 Scope This part of ISO 21927 specifies the product performance requirements, classifications and test methods for smoke barriers, which comprise the barrier itself, with o

38、r without associated activation and drive devices, designed for use in smoke and heat control systems. It covers only barriers installed in buildings, i.e. it does not cover barriers made of part of the buildings structure. This part of ISO 21927 provides the test methods for, and conformity assessm

39、ent of, the smoke barrier systems. Smoke barriers are only covered by this part of ISO 21927 when calculation methods exist for the determination of the leakage rate of smoke. This requires the smoke barriers to be sufficiently fixed and guided on any free joints between two adjacent smoke barriers.

40、 Figure E.4 illustrates a design to which this part of ISO 21927 does not apply. 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 references, the latest edition of the r

41、eferenced document (including any amendments) applies. ISO 834-1, Fire-resistance tests Elements of building construction Part 1: General requirements ISO 5925-1:2007 Fire tests Smoke-control door and shutter assemblies Part 1: Ambient- and medium-temperature leakage tests ISO 13943, Fire safety Voc

42、abulary ISO/IEC 17000, Conformity assessment Vocabulary and general principles ISO/IEC 17050-1, Conformity assessment Suppliers declaration of conformity Part 1: General requirements ISO/IEC 17050-2, Conformity assessment Suppliers declaration of conformity Part 2: Supporting documentation BS ISO 21

43、927-1:2008ISO 21927-1:2008(E) 2 ISO 2008 All rights reserved3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 13943 and the following apply. 3.1 active smoke barrier smoke barrier that moves from its retracted position into its fire-operational positio

44、n automatically when called upon to do so 3.2 barrier movement travel distance (e.g. height, drop) of an active barrier from its retracted position to its fire operational position 3.3 channelling screen smoke barrier installed beneath a balcony or projecting canopy to direct the flow of smoke and h

45、ot gases from a room opening to the spill edge 3.4 consumable power supplies any form of power that, when not available, prevents an active smoke barrier from moving to the required fire operational position 3.5 deflection movement of a smoke barrier when subjected to the buoyant force of the hot sm

46、oke, the movement of air, air pressure or any combination thereof 3.6 fail-safe designed to return to a safe condition in the event of a failure or malfunction, etc. 3.7 fire operational position final configuration of a device, e.g. a smoke barrier, specified by its designer to achieve and be susta

47、ined in the ultimate fire condition of the design 3.8 fitness for purpose ability of a product, process or service to serve a defined purpose under specific conditions 3.9 free area total area of all designed openings and clearance gaps in and/or around the perimeter of a smoke barrier 3.10 integrit

48、y ability of a barrier to maintain its soundness for the purpose for which it is intended without the transmission of significant quantities of flames or hot gases to the non-exposed side 3.11 life safety application application of the smoke and heat control system in its fire operational condition

49、for the period of time required for the occupants of the premises to be alerted, and to be able to exit the premises, with the smoke and heat control system assisting in the protection of the means of escape 3.12 response time time taken for an active smoke barrier to move to its fire operational position after initiation BS ISO 21927-1:2008ISO 21927-1:2008(E) ISO 2008 All rights reserved 33.13 smoke and heat exhaust ventilation system SHEVS set of components jointly sele