1、BSI Standards PublicationBS EN 14389-2:2015Road traffic noise reducingdevices Proceduresfor assessing long termperformancePart 2: Non-acoustical characteristicsBS EN 14389-2:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14389-2:2015. It supersedes BS EN 1
2、4389-2:2004 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/509/6, Fences for the attenuation of noise.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all
3、the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 81707 6ICS 17.140.30; 93.080.30Compliance with a British Standard cannot confer immunity from legal obligations.This
4、 British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 14389-2:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14389-2 May 2015 ICS 93.080.30 Supersedes
5、 EN 14389-2:2004English Version Road traffic noise reducing devices - Procedures for assessing long term performance - Part 2: Non-acoustical characteristics Dispositifs de rduction du bruit du trafic routier - Mthodes dvaluation des performances long terme - Partie 2: Caractristiques non acoustique
6、s Lrmschutzvorrichtungen an Straen - Verfahren zur Bewertung der Langzeitwirksamkeit - Teil 2: Nichtakustische Eigenschaften This European Standard was approved by CEN on 16 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givin
7、g this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three offic
8、ial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of
9、Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, S
10、weden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for
11、 CEN national Members. Ref. No. EN 14389-2:2015 EBS EN 14389-2:2015EN 14389-2:2015 (E) 2 Contents page Foreword 3 Introduction . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Requirements . 6 5 Report . 8 Annex A (normative) Road side exposure - Classification of environmental c
12、onditions . 9 A.1 General 9 A.2 Environmental classifications* appropriate to road traffic noise reducing devices selected from EN 60721-3-4 . 10 Annex B (informative) Material standards . 12 B.1 General 12 B.2 References 12 Bibliography 12 BS EN 14389-2:2015EN 14389-2:2015 3 Foreword This document
13、(EN 14389-2:2015) has been prepared by Technical Committee CEN/TC 226 “Road equipment”, the secretariat of which is held by AFNOR. 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 November 2015, an
14、d conflicting national standards shall be withdrawn at the latest by November 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Th
15、is document supersedes EN 14389-2:2004. The main change compared to the previous edition is a new presentation of the requirement in order to be coherent with the new EN 14389-1. In the new version, the manufacturer has to declare in Table 1 the working life of non-acoustic performances in function
16、of exposure classes. This part is concerned with long-term durability. It should be read in conjunction with: EN 1793, Road traffic noise reducing devices Test method for determining the acoustical performance Part 1: Intrinsic characteristics of sound absorption Part 2: Intrinsic characteristics of
17、 airborne sound insulation under diffuse sound field conditions Part 6: Intrinsic characteristics In situ values of airborne sound insulation under direct sound field conditions CEN/TS 1793-5, Road traffic noise reducing devices Test method for determining the acoustical performance Part 5: Intrinsi
18、c characteristics - In situ values of sound reflection and airborne sound insulation (CEN/TS) EN 1794, Road traffic noise reducing devices - Non-acoustic performance Part 1: Mechanical performance and stability requirements Part 2: General safety and environmental requirements Part 3: Reaction to fi
19、re. Burning behaviour of noise reducing devices based on assessment of their components. EN 14389, Road traffic noise reducing devices - Procedures for assessing long-term performance Part 1: Acoustical characteristics EN 60721-3-4, Classification of environmental conditions Part 3: Classification o
20、f groups of environmental parameters and their severities Section 4: Stationary use at non-weatherprotected locations According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bu
21、lgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
22、Turkey and the United Kingdom. BS EN 14389-2:2015EN 14389-2:2015 (E) 4 Introduction Noise reducing devices alongside roads should not only fulfil their acoustic function and structural design requirements in accordance with appropriate documents, but also maintain their performance during the requir
23、ed working life. The structural elements need to retain acceptable minimum safety factors at the end of their working life and the acoustic elements not only have to remain effective structurally but provide the specified acoustic performance. All elements in the construction of noise reducing devic
24、es should be resistant to electrolytic or/and chemical corrosion and embrittlement, be dimensionally stable and have generally a high ageing resistance in many differing conditions. BS EN 14389-2:2015EN 14389-2:2015 5 1 Scope This European Standard specifies requirements for assessing the working li
25、fe and provides the relevant exposure conditions. Standards of construction and any material tests conducted should provide evidence of resistance to specified conditions selected from the following: I. Chemical Agents Location dependent II. De-icing salt Location/climate dependent III. Dirty water/
26、dust Location/climate dependent IV. Dew Climate dependent V. Freeze/thaw Climate dependent VI. Cold Climate dependent VII. Heat Climate dependent VIII. UV Radiation Climate dependent IX. Traffic Vibration Location dependent X. Biological Process Climate dependent XI. Ozone Location dependent XII. Wa
27、ter Climate dependent XIII. Water spray (Wet/dry) Location dependent NOTE Special care is taken for combinations of different materials, whether inside a single device or in combination with other devices (for example: a combination of different acoustic elements or another combination of acoustic a
28、nd structural elements). 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced docu
29、ment (including any amendments) applies. EN 60721-3-4, Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 4: Stationary use at non-weatherprotected locations (IEC 60721-3-4) 3 Terms and definitions For the purposes of
30、this document, the following terms and definitions apply. 3.1 noise reducing device (NRD) device that is designed to reduce the propagation of traffic noise away from the road environment Note 1 to entry: This may be a noise barrier, cladding, a road cover or an added device. These devices may inclu
31、de both acoustic and structural elements. 3.2 noise barrier noise reducing device, which obstructs the direct transmission of airborne sound emanating from road traffic BS EN 14389-2:2015EN 14389-2:2015 (E) 6 3.3 acoustic element element whose primary function is to provide the acoustic performance
32、of the device 3.4 structural element element whose primary function is to support or hold in place acoustic elements 3.5 cladding noise reducing device, which is attached to a wall or other structure and reduces the amount of sound reflected 3.6 cover noise-reducing device, which either spans or ove
33、rhangs the highway 3.7 added device added component that influences the acoustic performance of the original noise-reducing device (acting primarily on the diffracted energy) 3.8 working life period of time during which the performance of the device will be sustained which enables it to fulfil the p
34、erformance characteristics as identified in EN 1794 parts 1, 2 and 3 3.9 roadside exposure conditions experienced by the noise reducing devices installed alongside a road 4 Requirements The structural design shall comply with the requirements of the appropriate European code. Standard environmental
35、categories selected for road traffic noise reducing devices with possible variations are given in Annex A of this document. The manufacturer shall list the measures taken to limit the effects of ageing on his product following the list of ageing agents I to XIII and the adverse effects of combining
36、different materials. Where material standards exist, durability shall be assessed using them (see Annex B).The manufacturer shall define the working life under the exposure classes, listed in the Table 1,adapted to the intended use of the noise reducing device. In any cases, the working life of the
37、noise reducing device is the minimum of the working lives of its components. Adverse effects on long-term performance of contact with the ground shall be taken into account. If retention of water is likely to degrade the working life, the design shall ensure that water is not retained. The working l
38、ife of structural and acoustic elements may be different, therefore they have to be assessed under the same exposure conditions when installed on the same site. If a change in humidity and/or temperature and/or UV affects the dimensional stability of materials used in the construction, then the desi
39、gn shall allow for such changes and ensure that the performance continues to fulfil the performance characteristics. BS EN 14389-2:2015EN 14389-2:2015 7 Where different materials are used in the construction, all appropriate measures shall be taken to avoid electrolytic and chemical corrosion or int
40、eraction that could adversely affect working life. Table 1 Declared working life of non-acoustic performances in function of exposure classes Environmental class of exposure Declared working life in years 4B1 4B2 4C2 4C3 4C4 4K2 4K3 4M3 4M4 4S2 4Z6 4Z7 NOTE This European Standard permits specifying
41、authorities to indicate where there is no requirement for assessment under any particular exposure classes. The supplier shall provide for both structural and acoustic elements: a) the list of measures taken to limit the effects of ageing on his product; b) the working life corresponding to the spec
42、ific environmental exposure classes; c) a statement of the design codes used, appropriate Eurocodes etc., and evidence of evaluation of working life. Installation instructions shall describe how the product (acoustic element, full noise barrier, etc.) shall be installed in order to be able to achiev
43、e the declared working life. A maintenance manual shall specify measures which are necessary, or to be avoided, in order to achieve the declared working life. BS EN 14389-2:2015EN 14389-2:2015 (E) 8 5 Report The report shall include a full description of the geometry of the product evaluated, includ
44、ing details of procedures required by all appropriate material documents. It shall also include: a) reference to this document; b) name and address of the approved independent evaluating body with a dated signature of the person responsible; c) exact identification of evaluated product, name and add
45、ress of the manufacturer; d) full description of the materials, their thickness and densities of sound absorptive elements; e) drawing showing the cross-section of the evaluated element with permitted manufacturing tolerances; f) the list of measures taken to limit the effects of ageing on his produ
46、ct; g) the table of declared working lives; h) installation and maintenance manuals for the achieving the declared working life. BS EN 14389-2:2015EN 14389-2:2015 9 Annex A (normative) Road side exposure - Classification of environmental conditions A.1 General Noise reducing devices placed alongside
47、 roads are exposed to agents as well as climatic changes which can limit working life. It is essential that the environmental classifications are identified so that the long-term performance life can be properly assessed. This annex lists typical environmental conditions selected for road traffic no
48、ise reducing devices from EN 60721-3-4. The conditions selected do not take into account the effects of contact with the ground. The environmental conditions specified in EN 60721-3-4 do not explicitly take into account the effects of contact with the ground. However, for the design of noise reducin
49、g devices that could be in contact with the ground, these effects shall be taken into account. BS EN 14389-2:2015A.2 Environmental classifications*appropriate to road traffic noise reducing devices selected from EN 60721-3-4 Classifications Identified Location variation Additional possible Exposures (Distance from carriageway) Climatic variations List 1. 10 m HOT COLD Table 1 Climatic conditions IV. Dew (K) V. Freeze/thaw 4K2 4K2 4K2 4K3 cVI. Cold VII. Heat VIII UV Radiation XII. Water Table2 Speci
