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1、DRAFT FOR DEVELOPMENT DD ENV 13050:2001 Curtain walling Watertightness laboratory test under dynamic condition of air pressure and water spray ICS 91.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: London South Bank University, London South Bank Universit
2、y, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD ENV 13050:2001 This Draft for Development, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 1
3、5 July 2001 BSI 07-2001 ISBN 0 580 37501 3 National foreword This Draft for Development is the official English language version of ENV 13050:2000. 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 provisi
4、onal nature because of the need to gain experience of its application and assess its suitability for conversion into a European Standard. It should be applied on this provisional basis, so that information and experience of of its practical application may be obtained Comments arising from the use o
5、f 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 review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be t
6、aken on its status at the end of its three-year life. The commencement of the review period will be notified by an announcement in Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a E
7、uropean Standard, to extend the life of the prestandard or to withdraw it. Comments should be sent in writing to the Secretary of BSI Subcommittee B/538/6, Curtain walling, at 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an app
8、ropriate revision of the text. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entit
9、led “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Summary of pages This document comprises a front cover, an inside front cover, the ENV title page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright da
10、te displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN PRESTANDARD PRNORME
11、EUROPENNE EUROPISCHE VORNORM ENV 13050 November 2000 ICS 91.060; 91.060.10 English version Curtain Walling - Watertightness - Laboratory test under dynamic condition of air pressure and water spray Faades rideaux - Etanchit leau - Essai en laboratoire sous pression dair dynamique et projection deau
12、Vorhangfassaden - Schlagregendichtheit - Laborprfung mit wechselndem Luftdruck und Besprhen mit Wasser This European Prestandard (ENV) was approved by CEN on 27 October 2000 as a prospective standard for provisional application. The period of validity of this ENV is limited initially to three years.
13、 After 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 Standard. 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 promptly a
14、t 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 possible conversion of the ENV into an EN is reached. CEN members are the national standards bodies of Austria, Belgium, Czech Republ
15、ic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 3
16、6 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. ENV 13050:2000 E Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN
17、V 13050:2000 Contents Page Foreword 3 1Scope4 2Normative References 4 3Terms and definitions4 4Principle5 5 Apparatus .5 6Test Specimen6 7Specimen Preparation.6 8Test Procedure .7 9Test Results7 10 Test Report.8 Bibliography9 Licensed Copy: London South Bank University, London South Bank University,
18、 Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 ENV 13050:2000 Foreword This European Prestandard has been prepared by Technical Committee CEN/TC 33 “ Doors, windows, shutters, building hardware and curtain walling “, the secretariat of which is held by AFNOR. This European Pr
19、estandard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
20、bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. It has been prepared because existing dynamic test equipmen
21、t and procedures vary from laboratory to laboratory to an extent that test results are not readily repeatable. This ENV is the result of research and development work to develop equipment and procedures which produce repeatable results related to driving rain conditions, in an economical manner. The
22、 ENV phase gives all Member States the opportunity to gain experience in the application of the standard enabling comparison of experience to be made and further refining of procedures. No existing European Standard is superseded. This European Standard is part of a series of European Standards dedi
23、cated to curtain walling products. This European Standard forms part of a series of curtain walling tests as defined in the product standard prEN 13830:2000 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page
24、4 ENV 13050:2000 1Scope This standard defines an additional test method which may be used when assessing the watertightness of curtain walling, both its fixed and openable parts. It is a supplementary test, not required for classification purposes, and it should be used only when the project specifi
25、er has determined its necessity. It describes how the outside face of a curtain walling specimen should be subjected to a continuous spray of water and a turbulent airflow, with continuous pulses of positive air pressure generated from within the chamber. This standard applies to any curtain walling
26、 product as defined in prEN 13830:2000 2Normative References This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate points in the text and the publications are listed hereafter. For dated referenc
27、es, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated into it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). prEN 12155:1999Curtain Walling - Wa
28、tertightness - Laboratory test under static pressure prEN 13119:1997Curtain Walling - Terminology prEN 13830:2000Curtain Walling - Product standard 3Terms and definitions For the purpose of this standard, the terms and definitions given in prEN 13119:1997, together with the following, apply: 3.1 tes
29、t pressure difference between the static air pressures on the outside and inside faces of the test specimen. It is expressed in Pascals (Pa). 3.2 positive test pressure when the static air pressure is greater on the outside face of the test specimen than on the inside face. 3.3 watertightness abilit
30、y of the curtain walling specimen to resist water leakage. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 ENV 13050:2000 3.4 water leakage penetration of water that continuously or repeatedly wet parts
31、of : 1. the inside face of the specimen. 2. any parts of the specimen not intended to be wetted as part of the system of water drainage to the outside. 4Principle The application of a constant and specified quantity of water in a spray combined with a specified turbulent airflow and continuous regul
32、ar pulses of positive test pressure, on to the outside face of the specimen, while inspecting for water leakage. 5 Apparatus 5.1 A chamber with an opening into which the test specimen can be fitted. This chamber shall be of sufficient strength and rigidity to withstand the test pressures likely to b
33、e imposed during the tests. It shall not deflect under test pressure to any extent which would affect the performance of the test specimen. Adequately representative structural supports shall be provided to which the specimen shall be attached in accordance with the conditions of use in the works (s
34、ee also clause 6). 5.2 A means for applying controlled positive test pressures to the specimen arranged such that the air does not impinge directly on the specimen with any significant velocity. 5.3 A means by which rapidly controlled changes of test pressure may be produced within defined limits. 5
35、.4 A means of measuring the applied test pressures within an accuracy of ?1 %. 5.5 An adjustable device for spraying water at working pressure range of 2 bar to 3 bar according to the manufacturers specification so that a constant and continuous film can be applied to the outside surface of the spec
36、imen. The local mains water supply shall be an acceptable source providing it is clean enough to allow the spray nozzles to function properly throughout the test. The water spraying device shall have nozzles spaced at not more than 700 mm centres on a regular grid and at a distance of 400 mm from th
37、e outside surface of the specimen (see figure 2). The nozzles shall have the following features: 1. Circular full cone spray 2. Spray angle minimum 90 maximum 120 3. working pressure range two to three bars according to the manufacturers specification. 5.6 A means of measuring the total amount of wa
38、ter supplied within an accuracy of 10%. Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 6 ENV 13050:2000 5.7 A drain for the sprayed water which will not interfere with the drainage of the specimen frame.
39、5.8 A mobile wind generator for applying a controlled turbulent airflow to all points on the outside surface of the specimen. The turbulent airflow shall be generated by a variable speed axial fan fixed to a 600 mm diameter rigid duct which directs the airflow around a 90 bend onto the outside surfa
40、ce of the specimen (see figure 3). The bend in the duct shall have a smaller radius of 300 mm ? 5 mm and the straight length of duct after the bend shall be 300 mm ? 10 mm. The fan shall be capable of generating an airflow with the following features, measured 20 mm from the end of the duct and not
41、more than 300 mm from its central horizontal axis:- 1. A minimum velocity of not less than 30 m/s along the central horizontal axis. 2. A minimum velocity of not less than 20 m/s over 75 % of the measurement area. 3. A minimum velocity of not less than 8 m/s at any point within the measurement area.
42、 The axis of the airflow from the duct shall be horizontal and normal to the outside surface of the specimen with the end of the duct 650 mm, 50 mm, from the specimen. The wind generator shall be mounted on a device that provides controlled movement in any direction in a plane parallel to the glazin
43、g or infill panels without regard for any small inclined sections of the specimen. 6Test Specimen The specimen shall be submitted in a fully operable condition, ready for use. It shall be supplied in a suitable manner for fixing onto the test chamber. The test specimen shall not be less than two typ
44、ical units wide and shall be sufficient to provide full loading on at least one typical vertical joint or framing member or both. The specimen shall not obtain additional stiffness from the test chamber. The height shall be not less than the full distance between the curtain walls point of connectio
45、n to the building structure. For custom designed curtain walls or special elements, the specimen shall be a size which is adequate to demonstrate its compliance with the specified requirements. All parts of the specimen shall be full size, using the same materials, details, methods of construction a
46、nd fixing as intended for use in the works. Conditions for connection to the structural support shall simulate those in the works as accurately as possible (see also 5.1). This standard does not apply to the perimeter joints between the curtain walling and the test chamber, or to the joints between
47、the curtain walling and the building construction. 7Specimen Preparation No further preparations are necessary other than those already carried out for the preceding air permeability, watertightness and wind resistance tests. Licensed Copy: London South Bank University, London South Bank University,
48、 Tue Dec 12 06:07:52 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 ENV 13050:2000 8Test Procedure Open and close all openable windows 5 times and finally secure them in the closed position. Calculate the maximum test pressure (Pmax) and the minimum test pressure (Pmin) from the actual, or intend
49、ed maximum, design wind pressure (Pdesign) for the certain walling to comply with: Pmax = 3 Pmin = 0,375 x Pdesign Apply 3 pulses of positive pressure equal to 500 Pa or 10 % greater than the maximum test pressure (Pmax), whichever is greater. The maximum pressure for each pulse shall be reached in not less than 1 second and it shall be maintained for not less than 3 seconds. Operate the water sprays with 0 Pa test pressure and adjust the total flow to provide 2 l/m2 per minute calculated from the area of the specimen under test. After 15 minutes of sprayi