ENV 1363-3-1998 en Fire Resistance Tests - Part 3 Verification of Furnace Performance《耐火试验 第3部分 炉子性能检验》.pdf

1、STDOBSI DD ENV 33b3-3-ENGL 2000 Lb24bb9 0853473 473 DD ENV 13633:2000 DRAFT FOR DEVELOPMENT Fire resistance tests - Part 3: Verification of furnace performance ICs 13.220.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PEBMmED BY COPYRIGET LAW STD-BSI DD ENV L3b3-3-ENGL 2000 LbZ!bb9 085Li192 32T havi

2、ng been prepared under the direction of the Health and Environment Sedor Committee, was pubiished under the authority of the Standards Committee and comes into effect on 15 June 2000 Amd. No. o BSI 062000 ISBN O 580 35286 2 DD ENV 13633:2000 Date Comments National foreword This Draft for Development

3、 is the offid English ianguage version of ENV 136531998. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature due to the limited duration of the European Prestandard. It should applied on t

4、his provisional basis, so that infomation and experience of its practical application may be obtained. Comments arisii nom the use of this Draft for Development are requested so that UK experience can be reported to the European organization responsible for its conversion into a European Standard A

5、review of this publication wil be initiated 2 years after its publication by the European organktion so that a decision can be taken on its status at the end of its three-year life. The commencement of the review period wil be notined by an announement in bpc.uk Standards. According to the replies r

6、eceived by the end of the review period, the responsible BSI Committee wdi decide whether to support the conversion into a European Standard, to extend the life of the prestandard or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technid Committee Fsw22, Fire resistance t

7、ests, at 389 Chiswick High Road, London W4 4AL, giving the document reference and ciause number and proposing, where possible, an appropriate revision of the tefi A list of organizations represented on this committee can be obtained on request to its secrem. Cross-references The British Standards wh

8、ich implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitied riitemational Standards Correspondence Index“, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Summary of pages This doc

9、ument comprises a front cover, an inside kont cover, the ENV tide page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicaks when the document was last issued STD-BSI DD ENV L3b3-3-ENGL 2000 I Lb2qbb7 0851q73 2bb D EUROPEAN PRESTANDARD EN

10、V 13634 PRNORME EUROPENNE EUROPISCHE VORNORM December 1998 ICs 13.220.50 Descriptors: buildings, structural members, tire resistance, fire tests, verincation English version Fire resistance tests - Part 3: Verification of furnace performance This European Presandard (ENV) was approved by CEN on 5 De

11、cember 1998 as a prospecave standad tor provisionai appiicaion. The period of validity of this ENV is limited initially to three years. Atter two years the members of CEN will be requested to submit their comments, particularly on the question whether the ENV can be converted into a European Standar

12、d. CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV available pmmptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final decision about the

13、 possible conversion of the ENV into an EN is reached. CEN members are aie national standatds bodies of Austria, Belgium, Czech Republic, Denmari(, Finland. France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands. Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUR

14、OPEAN COMMlITEE FOR STANDARDEAON COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat rw de Stasurt, 36 8-1050 Brussels Q 1998 GEN AH rights of exploitation in any form and by any means resewed worldwide for CEN national Members. Ref. No. ENV 1363-31998 E STD-BSI DD E

15、NV 13b3-3-ENGL 2000 m 1b24bb9 0853494 LT2 m Page 2 ENV 1363-3:1998 Contents Foreword Introduction 1 Scope 2 Normative references 3 Definitions 4 Test equipment 5 Test conditions 6 Measuring elements 7 Installation of measuring element 8 Conditioning 9 Application of instrumentation 10 lest procedure

16、 11 Verification criteria 12 Report Annex A (Informative) Additional measurements Page 3 4 5 5 5 5 6 6 7 7 7 8 0 10 11 STD-BSI DD ENV 13b3-3-ENGL 2000 D Lb24bb7 085Lq75 O37 W Page 3 ENV 1363-3:1998 Foreword This European Prestandard has been prepared by Technical Committee CEWC 127 “Fire safety in b

17、uildings“, the secretariat of which is held by BSI. According to the CEWCENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,

18、 Ireland, ltaiy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 ENV 1363-3:1998 Introduction The general requirements for fire resistance testing including the specifications of the apparatus to be used are given in EN1363-1. However, the specifi

19、cation for the thermal exposure provided by fire resistance furnaces only requires that they are able to follow a defined temperature-time relationship when controlled with thermocouples of a prescribed type. In order to have a reproducible test method, it is important that the thermal exposures pro

20、duced by fire resistance furnaces of different design are within defined limits. The purpose of this document is to verify the thermai exposure performance of furnaces used for the fire resistance testing of separating elements. In addition to verifying the thermal exposure in furnaces, the procedur

21、e also verifies that the static pressure distribution in the fumace is within defined limits and the oxygen concentration are within the limits given in EN 1363-1, Variations in pressure and oxygen content will affect the integrity measurements when using the cotton pad and variations in oxygen cont

22、ent will also affect the rate of combustion of combustible test specimens. The verification procedure is performed using an arrangement of measuring elements mounted within a supporting construction. The measuring elements consist of two steel plates separated by insulation. The test construction is

23、 exposed to the standard heating and pressure conditions given in EN 1363-1 for 60 minutes and measurements are made of the exposed face temperature of the steel plate of the measuring elements. In addition measurements are also made in the furnace of the static pressure distribution at several posi

24、tions and of the oxygen concentration. The thermal exposure performance of the furnace is deemed acceptable if the measurements obtained from the measuring elements and the static pressure distribution are within defined limits and the oxygen concentration is within the limits given in EN 1363-1. Ca

25、ution The attention of all persons concerned with managing and carrying out fire resistance tests 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 operational hazards may a

26、lso 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 instructions shall be issued. Appropriat

27、e training shall be given to relevant personnel. Laboratory personnel shall ensure that they follow written safety instructions at all times. Page 6 ENV 1363-31998 1 scope This European Prestandard describes a procedure for the verification of the thermal and pressure characteristics of fire resista

28、nce furnaces for the testing of separating elements. The procedure is to be carried out on new furnaces, when the furnace is relined (replacement of 30% of the lining), when the furnace is overhauled or every two years, whichever occurs first. Information on additional measurements is given in annex

29、 A. 2 Normative references This European Prestandard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or

30、 revisions of any of these publications apply to this European Standard oniy when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 1363 Fire resistance tests Part 1 General requirements EN 10088 Stainless steels Part 2

31、Technical delivery condition for sheetlplate and strip. EN 10095 Heat resisting steels and nickel alloys IS0 13943 Glossary of fire terms and definitions 3 Definitions For the purposes of this Part of EN1 363, the definitions given in EN 1363-1 and IS0 13943 together with the following apply: 3.1 ti

32、me constant: The time representative of the response of a system to a step change in the input variable: the time after which a characteristic property for the process has reached 63 % of the final change due to the step change. Note: This definition is derived from the response of a so-called first

33、-order system to a step change. It can be shown that this response is of the form:AY(t) = (1 - e-Y.AY,. In this expression, t is time, Y, is the final change of Y. T is the time constant. 3.2 measuring element: A device provided for the purpose of measuring the thermal exposure in a fire resistance

34、furnace. 3.3 test construction: The complete assembly of the measuring element together with their supporting construction. 4 Test equipment The test equipment shall be as specified in EN 1363-1. Page 6 ENV 1363-3:1998 5 Test conditions The heating and pressure conditions and the furnace atmosphere

35、shall conform to those given in EN 1363-1. 6 Measuring elements 6.1 General Each element shall consist of layers of calcium silicate insulation board, sandwiched between two steel plates of 5mm and 2mm thickness. The thicker steel plate shall be exposed to the fire. The assembly is nominally 290mm x

36、 290mm and is shown in figures 1 to 4. 6.2 Constructional details 6.2.1 Fibre washers (pads) The insulating fibre pads used in the construction of the measuring element shall have a density of (9- 100) kglm3. 6.2.2 Spring-loaded bolt assembly The steel plates shall be assembled using four spring-loa

37、ded bolt assemblies which are intended to accommodate the distribution of the assembly when it is heated. The bolt holes in the plate shall be made with sufficient clearance to avoid contact when assembled. This, together with the insulating fibre washers is intended to avoid heat conduction during

38、test. 6.2.3 Steel plate-unexposed surface The steel plate comprising the unexposed surface of the measuring element shall be constructed from steel number 1 .U36 to EN10088-2 or equal in accordance with figure 3. 6.2.4 Thermocouples Two thermocouples shall be peened to each steel plate at the positi

39、ons specified in the figure 1. The wires shall follow the isotherm through the hot junction along a distance of 2nm from this junction. 6.2.5 Insulation boards The insulation boards shall consist of inorganic insulation material with a density of (280 30) kg/m3 and a thickness of (102 1)mm. 6.2.6 St

40、eel plate - fire exposed surface The steel plate comprising the fire-exposed surface of the measuring element shall be constructed from steel number 2.4816 to EN10095 equal in accordance with figure 4. 6.3 Measuring element thermocouples The sensors and data-acquisition apparatus shall comply with t

41、he requirements given in EN 1363-1 and the following : - STD-BSI DD ENV LIb3-3-ENGL 2000 Lb2qbbS 0851497 784 = Page 7 ENV 13633:1998 Sensors Measurement error : 1 lk 7 , 50 L 250 I 4* +- P- Ail dimensions in m:llimetres view from unexposed side for legend see figure 1 Figure 3 Unexposed steel plate

42、_ STD-BSI DD ENV L3b3-3-ENGL 2000 Lb24bbS 0851509 453 Page 17 ENV 1363-3:1998 290 , 30 , 50 I I v I I I I B f I 20 250 1 All dimensions in mm View from exposed side Figure 4 Exposed steel plate STD-BSI DD ENV 13b3-3-ENGL 2000 Lb24bb 0853530 375 , BI6 Ir 813 L 813 BI6 1 1 f Page 18 ENV 1363-31998 I B

43、 I I I 1 I I I I I I I l 3- A I f A I J - - - 6 furnace width of opening H furnace height of opening Figure 5 Supporting construction: vlew from the unexposed slde Page 19 ENV 13633:1998 All dimensions in mm 1 2 core plug 3 clamps for insulation board wire mesh reinforcement (25 rnm min. cover) - if

44、 constructed of concrete Figure 6 Aperture in supporting construction with a measuring element (ret section AA, figure 5) STD.BS1 DD ENV 33b3-3-ENGL 2000 m Lb24669 0853532 T4A m ,El;- p3 Page 20 ENV 1363-3:1998 P4 T/C 1-4 T/C 5-8 P2 T/C 17-20 P5 TIC 9-12 T/C 13-1 6 I All dimensions in mm Figure 7 Po

45、sitioning of static pressure probes, P1 . P5 - STD-BSI DD ENV L3b3-3-ENGL 2000 m Lb24bb9 0851513 984 m DD ENV 1363-3:ZO BSI 389ChiswickHighRoad London w4 4AL BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the TJK view

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