SIST EN 14389-2:2005

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lärmschutzeinrichtungen an Straßen - Verfahren zur Bewertung der Langzeitwirksamkeit - Teil 2: Nichtakustische EigenschaftenDispositifs de réduction du bruit du trafic routier - Méthodes d'évaluation des performances a long terme - Partie 2 : Caractéristiques non acoustiquesRoad traffic noise reducing devices - Procedures for assessing long term performance - Part 2: Non-acoustical characteristics93.080.30Cestna oprema in pomožne napraveRoad equipment and installations17.140.30Emisija hrupa transportnih sredstevNoise emitted by means of transportICS:Ta slovenski standard je istoveten z:EN 14389-2:2004SIST EN 14389-2:2005en01-januar-2005SIST EN 14389-2:2005SLOVENSKI
STANDARD



SIST EN 14389-2:2005



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14389-2August 2004ICS 93.080.30English versionRoad traffic noise reducing devices - Procedures for assessinglong term performance - Part 2: Non-acoustical characteristicsDispositifs de réduction du bruit du trafic routier - Méthodesd'évaluation des performances à long terme - Partie 2 :Caractéristiques non acoustiquesLärmschutzeinrichtungen an Straßen - Verfahren zurBewertung der Langzeitwirksamkeit - Teil 2:Nichtakustische EigenschaftenThis European Standard was approved by CEN on 24 June 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14389-2:2004: ESIST EN 14389-2:2005



EN 14389-2:2004 (E) 2 Contents page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.6 3 Terms and definitions.6 4 Requirements.6 Annex A (normative)
Road side exposure - Classification of environmental conditions.9 Annex B (informative)
Material standards.11 Bibliography.14
SIST EN 14389-2:2005



EN 14389-2:2004 (E) 3 Foreword This document (EN 14389-2:2004) 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 February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. 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 airborne sound insulation EN 1794, Road traffic noise reducing devices - Non-acoustic performance Part 1: Mechanical performance and stability requirements Part 2: General safety and environmental requirements prEN 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 of groups of environmental parameters and their severities – Section 4: Stationary use at non-weatherprotected locations (IEC 60721-3-4:1995) According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European 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.
SIST EN 14389-2:2005



EN 14389-2:2004 (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 required working life. The structural elements need to retain acceptable minimum safety factors at the end of their design 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 devices should be resistant to corrosion and embrittlement, be dimensionally stable and have generally a high ageing resistance in many differing conditions.
SIST EN 14389-2:2005



EN 14389-2:2004 (E) 5 1 Scope This document specifies assumed working life requirements and is also intended to assist suppliers in its prediction. It is to be used only for devices manufactured from materials covered by documents which allow prediction of working life (see Annex B). Materials excepted are those which do not affect the non acoustic performance of the device required by EN 1794 parts 1 and 2. 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/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. Water Climate
dependent XIII. Water spray Location
Wet/dry dependent SIST EN 14389-2:2005



EN 14389-2:2004 (E) 6 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 referenced document (including any amendments) applies. EN 1794-1, Road traffic noise reducing devices – Non-acoustic performance – Part 1: Mechanical performance and stability requirements EN 1794-2, Road traffic noise reducing devices – Non-acoustic performance – Part 2: General safety and environmental requirements. 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 60721-3-4:1995). 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1
structural elements elements whose primary function is to support or hold in place acoustic elements 3.2
acoustic elements elements whose primary function is to provide the acoustic performance of the device 3.3
working life period of time during which the performance of the device will be maintained which enables it to fulfil the performance characteristics as identified in EN 1794 parts 1 and 2 3.4
roadside exposure use of the product as a noise reducing device installed alongside a road 4 Requirements 4.1 General The structural design shall comply with the requirements of the appropriate European code. When assessed against the environmental conditions listed in Annex A of this document, the product shall satisfy the normative parts of road traffic noise reducing devices - non acoustic performance EN 1794 parts 1 and 2. 4.2 Structural elements All structural elements shall normally be designed to give a working life of 30 years under specific conditions, however, a longer or shorter life may be specified. SIST EN 14389-2:2005



EN 14389-2:2004 (E) 7 4.3 Acoustic elements Owing to the difficulty of assessing their long-term acoustic performance, acoustic elements including seals at edges to prevent sound leakage are not necessarily required to have the same working life as the structural elements. Acoustic elements shall therefore be designed to have a normal working life of 15 years under the same conditions imposed for structural elements. However, a longer or shorter life may be specified. 4.4 General When subjected to environmental conditions and severities selected from EN 60721-3-4, all material used in the construction of the device shall be assessed using the durability requirements of the appropriate material standard. Some material documents, in order to predict working life, may require more detailed information of exposure conditions than those given in EN 60721-3-4. Standard environmental categories selected for road traffic noise reducing devices with possible variations are given in Annex A of this document. Adverse effects on long-term performance of contact with the ground shall be taken into account. If retention of water within acoustic elements is likely to degrade their performance the design shall ensure that water is not retained. If a change in humidity and/or temperature and/or UV affects the dimensional stability of materials used in the construction, then the design shall allow for such changes and ensure that the performance continues to fulfil the performance characteristics. Where different metals or materials are used in the construction, all appropriate measures shall be taken to avoid electrolytic corrosion or interaction that could adversely affect working life. Upon request the supplier shall provide for both structural and acoustic elements. a) the intended working life; b) the classification of conditions used for evaluation based on EN 60721-3-4; c) A statement of the design codes used, appropriate Eurocodes etc., and evidence of evaluation of working life; d) In all cases details of any maintenance programme, if this is needed to ensure required working life is attained. Should this involve high pressure water jetting, evidence shall be provide
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