EN 1366-6-2004 en Fire resistance tests for service installations - Part 6 Raised access and hollow core floors《辅助设施的防火试验 第6部分 架空通道和空心地板》.pdf

1、BRITISH STANDARD BS EN 1366-6:2004 Fire resistance tests for service installations Part 6: Raised access and hollow core floors The European Standard EN 1366-6:2004 has the status of a British Standard ICS 13.220.50 BS EN 1366-6:2004 This British Standard was published under the authority of the Sta

2、ndards Policy and Strategy Committee on 18 November 2004 BSI 18 November 2004 ISBN 0 580 44799 5 National foreword This British Standard is the official English language version of EN 1366-6:2004. The UK participation in its preparation was entrusted by Technical Committee FSH/22, Fire resistance te

3、sts, to Subcommittee FSH/22/13, Raised floors, 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 or European publications referred to in this docu

4、ment 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 all the necessary provisions of a contract.

5、 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 enquiries on the interpretation, or proposals for ch

6、ange, 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 16, an inside back cover and a back cover. The BSI copyright n

7、otice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13666 November2004 ICS13.220.50 Englishversion FireresistancetestsforserviceinstallationsPart6:Raised accessandholl

8、owcorefloors ScuritcontrelincendieEssaisdersistanceaufeudes installationsdeservicePartie6:Plancherssurlevset plancherscreux FeuerwiderstandsprfungenfrInstallationenTeil6: DoppelundHohlbden ThisEuropeanStandardwasapprovedbyCENon9July2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulation

9、swhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(E

10、nglish,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,Fran

11、ce, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassa

12、rt,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13666:2004:EEN 1366-6:2004 (E) 2 Contents page Foreword4 Introduction .5 1 Scope.6 2 Normative references6 3 Terms and definitions6 4 Test equipment.7 5 Test conditions.7 5.1 Fur

13、nace temperature.7 5.2 Furnace pressure.7 5.3 Loading conditions8 6 Test specimen8 6.1 Size8 6.2 Number8 6.3 Design.9 6.4 Construction.10 6.5 Verification10 7 Installation of the test specimen 10 8 Conditioning.10 9 Application of instrumentation.10 9.1 Thermocouples10 9.2 Pressure11 9.3 Deflection1

14、1 10 Test procedure.11 10.1 General11 10.2 Application and control of load 11 10.3 Furnace control11 10.4 Observations during the test 11 10.5 Termination of test.11 11 Performance criteria12 11.1 Loadbearing capacity12 11.2 Other criteria.12 12 Test report12 13 Direct application of the test result

15、s12 13.1 General12 13.2 Size of raised or hollow floor12 13.3 Boundary/restraint conditions12 13.4 Panels12 13.5 Pedestals13 13.6 Fixing of pedestals to sub-floor (raised floors only)13 13.7 Fittings13 13.8 Cut panels (raised floors only) .13 13.9 Plenum13 EN 1366-6:2004 (E) 3 13.10 Loading.13 13.11

16、 Temperature/time curve13 Annex A (informative) Guidance on the provision of support for raised or hollow floors inside the furnace 14 A.1 Introduction14 A.2 Method of support using pillars .14 A.3 Method of support fire protected steel beams15 EN 1366-6:2004 (E) 4 Foreword This document (EN 1366-6:

17、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 by May 2005, and conflic

18、ting national standards shall be withdrawn at the latest by May 2005. This European Standard has been prepared under a Mandate given to CEN by the European and the European Free Trade Association, and supports essential requirements of the Construction Products Directive. EN 1366 Fire resistance tes

19、ts for service installations consists of the following: Part 1: Ducts, Part 2: Fire dampers, Part 3: Penetration seals, Part 4: Linear joint seals, Part 5: Service ducts and shafts, Part 6: Raised access and hollow core floors, Part 7: Conveyor systems and their closures, Part 8: Smoke extraction du

20、cts , Part 9: Single compartment smoke extraction ducts , Part 10: Smoke control dampers, Part 11: Fire protective systems for essential services . According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European

21、Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1366-6:2004 (E)

22、 5 Introduction In this standard a representative sample of a raised or hollow floor is exposed to a specified regime of heating and loading. The performance of the test specimen is monitored on the basis of criteria described in EN 1363-1. The fire resistance of the tested construction is expressed

23、 as the time for which the appropriate criteria have been satisfied. Caution The attention of all persons concerned with managing and carrying out this fire resistance test, EN 1366-6, is drawn to the fact that fire testing can be hazardous and that there is a possibility that toxic and/or harmful s

24、moke and gases can be evolved during the test. Mechanical and operation 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 should be made and safety precautions sho

25、uld 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 instructions at all times. EN 1366-6:2004 (E) 6 1 Scope This Part of EN 1366 specifies a method

26、 for determining the fire resistance of raised access floors and hollow floors when subjected to a fire from within the plenum beneath the floor. The fire exposure applied to the test specimen may be either: a) standard time temperature curve; b) reduced time temperature curve which follows the stan

27、dard time/temperature curve only up to 500 C. After this temperature has been reached the temperature within the furnace is maintained at 500 C. This document does not determine the fire resistance of the sub-floor on which the raised or hollow floor is constructed; this is given in EN 1365-2. 2 Nor

28、mative 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 referenced document (including any amendments) applies. EN 1363-1:1999, Fire resistance

29、 tests Part 1: General requirements. EN 12825:2001, Raised access floors. EN 13213:2001, Hollow floors. EN ISO 13943:2000, Fire safety Vocabulary (ISO 13943:2000). 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1363-1:1999, EN 12825:2001, EN 13213:20

30、01 and EN ISO 13943:2000 and the following apply. 3.1 raised access floor factory made flooring system comprising panels supported on an under-structure of pedestals and/or stringers or other components as applicable, providing a load bearing structure for the fitting out of a building (EN 12825) NO

31、TE The under-structure is part of the raised access floor. 3.2 stringer horizontal component connecting pedestals that may support a panel 3.3 hollow floor loadbearing layer supported by a special understructure (which may include pedestals) in order to provide a space between the loadbearing layer

32、and the base floor for installation of e.g. telecommunication services, electrical supplies, heating or air conditioning 3.4 sub-floor horizontal element of building construction which is loadbearing and separating (constructional floor) EN 1366-6:2004 (E) 7 3.5 panel loadbearing horizontal componen

33、t of the access floor. It is supported by the under structure (e.g. pedestals and stringers) (EN 12825) 3.6 pedestal vertical component or part of the element which transmits loading to the sub-floor (EN 12825) 3.7 plenum available space between the underside of the panels of the access floor and th

34、e sub-floor (EN 12825) 3.8 plenum height vertical distance between the highest point of the sub-floor and the lowest point of the underside of the access floor or hollow floor 3.9 associated construction walls applied at the periphery of the test specimen representative of those in practice 3.10 fit

35、tings items contained within raised access flooring systems or hollow flooring systems which penetrate panels or the hollow floor, e.g. ventilation grills, power sockets 3.11 unexposed face upper surface of the raised or hollow floor, i.e. the opposite surface to the surface exposed to fire 4 Test e

36、quipment The test equipment shall be as specified in EN 1363-1. 5 Test conditions 5.1 Furnace temperature When testing using the standard time temperature curve, the furnace atmosphere and heating conditions shall conform to those given in EN 1363-1. When testing using the reduced time temperature c

37、urve, the furnace atmosphere shall conform to EN 1363-1 and the temperature in the furnace shall follow the standard time temperature curve until 500 C has been reached. 5.2 Furnace pressure 5.2.1 Plenum heights not greater than 1,0 m The pressure in the plenum 100 mm below the lowest point of the u

38、nderside of the panel or horizontal part of the floor shall be maintained at (+ 5 3) Pa relative to the outside of the furnace. 5.2.2 Plenum heights greater than 1,0 m The pressure in the plenum 100 mm below the lowest point of the underside of the panel or horizontal part of the floor shall be main

39、tained at a pressure calculated as follows: EN 1366-6:2004 (E) 8 p = 8,5 h 3,5 where p = pressure in Pa; h = height of plenum in m. 5.3 Loading conditions The test specimen shall be subjected to loads determined in accordance with EN 1363-1. The determination of the load shall be clearly indicated i

40、n the test report. The sponsor shall decide on the magnitude and distribution of the load, which may be uniformly distributed or applied to discrete areas. NOTE 1 Figure 1 shows a suggested pattern of distribution for applying load to discrete areas. NOTE 2 The level of load required may be subject

41、to national provisions. A suggested minimum value of the test load is 1,5 kN/m 2 . Loading may be applied using weights, hydraulic rams or other mechanical systems. The total contact area of the loading equipment on the floor surface shall be not more than 0,09 m 2at any individual loading position

42、or 20 % of the total surface area collectively. If the load is applied via materials with a high conductivity, e.g. steel plates, then they shall be insulated from the surface of the test specimen. The loading equipment shall not inhibit the free movement of air at the top of the test specimen and,

43、other than at the loading points, no part of the loading equipment shall be closer than 60 mm to the unexposed surface of the test specimen. 6 Test specimen 6.1 Size a) The test specimen shall be full size unless the actual size is larger than the size that can be accommodated in the furnace. b) Whe

44、n the actual size cannot be accommodated in the furnace, the dimensions of the test construction shall be such that at least the following dimensions of the test specimen are exposed to the fire: exposed length: 4 000 mm, exposed width: 3 000 mm. 6.2 Number One test specimen shall be tested for each

45、 specified support/restraint, or exposure and loading, condition. More than one test will be necessary if one test cannot adequately cover all of the constructional variations given in 6.3. EN 1366-6:2004 (E) 9 6.3 Design 6.3.1 General The test specimen shall be fully representative of the construct

46、ion used in practice. Different types of raised or hollow floor systems shall not be included in a single test specimen. 6.3.2 Joints An example of each type of joint or junction contained within the raised or hollow floor, for the purposes of erection, construction or expansion, shall be incorporat

47、ed in the test specimen. Different jointing systems, other than those required to represent the actual floor, shall not be included in a single test specimen. 6.3.3 Boundary conditions The test specimen shall be installed with boundary and restraint conditions as found in practice. In the vast major

48、ity of cases raised and hollow floors are installed restrained on all edges, in which case any framing and/or panels shall be tightly fitted to the test frame, furnace walls or associated construction (as appropriate), without any gap, to ensure that the thermal expansion behaviour is fully evaluated. The support and restraint conditions shall be fully described in the test report. 6.3.4 Axis of installation If the longitudinal and transverse directions of the raised or hollow floor are constructed differently the performance of the specimen coul