SIST EN 1793-2:2013
(Main)RRoad traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions
RRoad traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions
This European Standard specifies the laboratory method for measuring the airborne sound insulation performance of road traffic noise reducing devices in reverberant conditions. It covers the assessment of the intrinsic performance of barriers that can reasonably be assembled inside the testing facility described in EN ISO 10140-2 and EN ISO 10140-4. This method is not intended for the determination of the intrinsic characteristics of airborne sound insulation of noise reducing devices to be installed on roads in non-reverberant conditions.
Lärmschutzeinrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 2: Produktspezifische Merkmale der Luftschalldämmung unter den Bedingungen eines diffusen Schallfeldes
Diese Europäische Norm legt das Laborprüfverfahren zur Ermittlung der Luftschalldämm-Eigenschaften von Lärmschutzwänden an Straßen unter hallenden Bedingungen fest. Sie ist bei der Beurteilung der produktspezifischen Eigenschaften derjenigen Lärmschutzeinrichtungen an Straßen anzuwenden, die für den Einbau in die in EN ISO 140-3 beschriebene Prüfeinrichtung geeignet sind.
Dieses Verfahren gilt für die folgenden Anwendungen nicht:
- Bestimmung der produktspezifischen Merkmale der Luftschalldämmung von Lärmschutzeinrichtungen an Straßen unter nicht hallenden Bedingungen.
Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination de la performance acoustique - Partie 2: Caractéristiques intrinsèques de l'isolation aux bruits aériens dans des conditions de champ acoustique diffus
La présente Norme européenne spécifie la méthode de laboratoire permettant de mesurer la performance d'isolation aux bruits aériens des dispositifs de réduction du bruit du trafic routier dans des conditions de réverbération. Elle traite de l'évaluation de la performance intrinsèque des écrans antibruit qui peuvent raisonnablement être assemblés à l'intérieur de l'installation d'essai décrite dans l'EN ISO 140-3.
La présente méthode n'est pas destinée aux applications suivantes :
- détermination des caractéristiques intrinsèques d'isolation aux bruits aériens des dispositifs de réduction du bruit devant être installés sur les routes dans des conditions non réverbérantes.
Protihrupne ovire za cestni promet - Preskusna metoda za ugotavljanje akustičnih lastnosti - 2. del: Karakteristike, značilne za izolacijo pred zvokom v zraku
Ta evropski standard določa laboratorijsko metodo za merjenje lastnosti za izolacijo pred zvokom v zraku pri protihrupnih ovirah za cestni promet v odmevnih pogojih. Zajema vrednotenje značilnih lastnosti ovir, ki jih je mogoče razumno zbrati v laboratoriju, opisanem v standardih EN ISO 10140-2 in EN ISO 10140-4. Ta metoda ni namenjena ugotavljanju karakteristik, značilnih za izolacijo pred zvokom v zraku, pri protihrupnih ovirah za namestitev na cestah v neodmevnih pogojih.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Lärmschutzeinrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 2: Produktspezifische Merkmale der Luftschalldämmung unter den Bedingungen eines diffusen SchallfeldesDispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination de la performance acoustique - Partie 2: Caractéristiques intrinsèques de l'isolation aux bruits aériens dans des conditions de champ acoustique diffusRRoad traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions93.080.30Cestna oprema in pomožne napraveRoad equipment and installations17.140.30Emisija hrupa transportnih sredstevNoise emitted by means of transportICS:Ta slovenski standard je istoveten z:EN 1793-2:2012SIST EN 1793-2:2013en,fr,de01-februar-2013SIST EN 1793-2:2013SLOVENSKI
STANDARDSIST EN 1793-2:19991DGRPHãþD
SIST EN 1793-2:2013
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1793-2
November 2012 ICS 17.140.30; 93.080.30 Supersedes EN 1793-2:1997English Version
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions
Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination de la performance acoustique - Partie 2: Caractéristiques intrinsèques de l'isolation aux bruits aériens dans des conditions de champ acoustique diffus
Lärmschutzvorrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 2: Produktspezifische Merkmale der Luftschalldämmung unter den Bedingungen eines diffusen Schallfeldes This European Standard was approved by CEN on 29 September 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving 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 official 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 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, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1793-2:2012: ESIST EN 1793-2:2013
EN 1793-2:2012 (E) 2 Contents Page Foreword . 3Introduction . 41Scope . 62Normative references . 63Symbols . 64Test arrangement . 65Test procedure and evaluation . 86Measurement uncertainty . 87Test report . 8Annex A (normative)
Categorisation of single-number rating .10Annex B (informative)
Guidance note on use of the number rating DLR .11Annex C (informative)
Measurement uncertainty .12 SIST EN 1793-2:2013
EN 1793-2:2012 (E) 3 Foreword This document (EN 1793-2:2012) 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 May 2013, and conflicting national standards shall be withdrawn at the latest by March 2014. 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. This document supersedes EN 1793-2:1997. In the previous version of this European Standard, the scope covered the noise reducing devices wherever they can be used alongside roads. In the current version of this European Standard, as its adapted title states explicitly, the scope is restricted to noise reducing devices designed for use under diffuse field conditions, e.g. inside tunnels or deep trenches or under covers (an explanation is presented in the introduction). EN 1793-2 is part of a series and should be read in conjunction with the following: EN 1793-1, Road traffic noise reducing devices — Test method for determining the acoustic performance — Part 1: Intrinsic characteristics of sound absorption; EN 1793-3, Road traffic noise reducing devices — Test method for determining the acoustic performance — Part 3: Normalized traffic noise spectrum; CEN/TS 1793-4, Road traffic noise reducing devices — Test method for determining the acoustic performance — Part 4: Intrinsic characteristics — In situ values of sound diffraction; CEN/TS 1793-5, Road traffic noise reducing devices — Test method for determining the acoustic performance — Part 5: Intrinsic characteristics — In situ values of sound reflection and airborne sound insulation; EN 1793-6, Road traffic noise reducing devices — Test method for determining the acoustic performance — Part 6: Intrinsic characteristics — In situ values of airborne sound insulation under direct sound field conditions. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: 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, Sweden, Switzerland, Turkey and the United Kingdom.
SIST EN 1793-2:2013
EN 1793-2:2012 (E) 4 Introduction Noise reducing devices alongside roads have to provide adequate sound insulation so that sound transmitted through the device is not significant compared with the sound diffracted over the top. This European Standard specifies a test method for qualifying the intrinsic airborne sound insulation performance for noise reducing devices designed for roads in reverberant conditions, e.g. inside tunnels or deep trenches or under covers. The measurement results of this method for airborne sound insulation are comparable but not identical with the results of the test method EN 1793-6, mainly because the present method uses a diffuse sound field, while the other method assumes a directional sound field. However, research studies suggest that a quite good correlation exists between the two methods. The test method described in this European Standard should not be used to determine the intrinsic characteristics of airborne sound insulation for noise reducing devices to be installed on roads in non-reverberant conditions.
This European Standard is not concerned with determining insertion loss (extrinsic performance) which additionally depends on factors which are not related to the product itself; e.g. the dimensions of the barrier and quality of installation work and site factors such as ground impedance, site geometry etc. The test is designed to allow the intrinsic airborne sound insulation performance of the device to be measured; the resulting rating should aid the selection of devices for reverberant roadside applications. This method may be used to qualify noise reducing devices for applications in other reverberant conditions, e.g. found along railways or near industrial sites. In these cases the single-number ratings should be calculated using an appropriate spectrum. For the purpose of this European standard reverberant conditions are defined based on the geometric envelope, e, across the road formed by the barriers, trench sides or buildings (the envelope does not include the road surface) as shown by the dashed lines in Figure 1. Conditions are defined as being reverberant when the percentage of open space in the envelope is less than or equal to 25 %, i.e. reverberant conditions occur when w/e ≤ 0,25, where e = (w+h1+h2).
SIST EN 1793-2:2013
EN 1793-2:201
...
SLOVENSKI STANDARD
oSIST prEN 1793-2:2010
01-november-2010
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Road traffic noise reducing devices - Test method for determining the acoustic
performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse
sound field conditions
Lärmschutzeinrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen
Eigenschaften - Teil 2: Produktspezifische Merkmale der Luftschalldämmung unter den
Bedingungen eines diffusen Schallfeldes
Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination
de la performance acoustique - Partie 2: Caractéristiques intrinsèques de l'isolation aux
bruits aériens dans des conditions de champ acoustique diffus
Ta slovenski standard je istoveten z: prEN 1793-2
ICS:
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
93.080.30 Cestna oprema in pomožne Road equipment and
naprave installations
oSIST prEN 1793-2:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1793-2:2010
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oSIST prEN 1793-2:2010
EUROPEAN STANDARD
DRAFT
prEN 1793-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2010
ICS 17.140.30; 93.080.30 Will supersede EN 1793-2:1997
English Version
Road traffic noise reducing devices - Test method for
determining the acoustic performance - Part 2: Intrinsic
characteristics of airborne sound insulation under diffuse sound
field conditions
Dispositifs de réduction du bruit du trafic routier - Méthode Lärmschutzeinrichtungen an Straßen - Prüfverfahren zur
d'essai pour la détermination de la performance acoustique Bestimmung der akustischen Eigenschaften - Teil 2:
- Partie 2: Caractéristiques intrinsèques de l'isolation aux Produktspezifische Merkmale der Luftschalldämmung unter
bruits aériens dans des conditions de champ acoustique den Bedingungen eines diffusen Schallfeldes
diffus
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 226.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official 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 Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1793-2:2010: E
worldwide for CEN national Members.
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oSIST prEN 1793-2:2010
prEN 1793-2:2010 (E)
Contents
Page
Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Symbols . 5
4 Test arrangement . 5
5 Test procedure and evaluation . 7
6 Measurement uncertainty . 7
7 Test report . 7
Annex A (normative) Categorization of single-number rating . 9
(informative) Guidance note on use of the number rating DL . 10
Annex B R
2
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oSIST prEN 1793-2:2010
prEN 1793-2:2010 (E)
Foreword
This document (prEN 1793-2:2010) has been prepared by Technical Committee CEN/TC 226 “Road
equipment”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1793-2:1997.
It should be read in conjunction with:
EN 1793-1, Road traffic noise reducing devices - Test method for determining the acoustic performance
- Part 2 : Intrinsic characteristics of airborne sound insulation for diffuse sound fields
EN 1793-3:1998, Road traffic noise reducing devices - Test method for determining the acoustic
performance – Part 3: Normalized traffic noise spectrum
CEN/TS 1793-4, Road traffic noise reducing devices - Test method for determining the acoustic
performance – Part 4: Intrinsic characteristics – In situ values of sound diffraction
CEN/TS 1793-5, Road traffic noise reducing devices - Test method for determining the acoustic
performance – Part 5: Intrinsic characteristics – In situ values of sound reflection under direct sound field
conditions
prEN 1793-6, Road traffic noise reducing devices - Test method for determining the acoustic
performance – Part 6: Intrinsic characteristics – In situ values of airborne sound insulation under direct
sound field conditions
3
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oSIST prEN 1793-2:2010
prEN 1793-2:2010 (E)
Introduction
Noise reducing devices alongside roads have to provide adequate sound insulation so that sound
transmitted through the device is not significant compared with the sound diffracted over the top. This
European Standard specifies a test method for qualifying the intrinsic airborne sound insulation performance
for noise reducing devices designed for roads in reverberant conditions e.g. inside tunnels or deep trenches
or under covers.
The measurement results of this method for airborne sound insulation are comparable but not identical with
the results of the test method EN 1793-6, mainly because the present method uses a diffuse sound field,
while the other method assumes a directional sound field. However, research studies suggest that a quite
good correlation exists between the two methods.
The test method described in this European Standard should not be used
...
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