SIST EN 15657:2017
(Main)Acoustic properties of building elements and of buildings - Laboratory measurement of structure-borne sound from building service equipment for all installation conditions
Acoustic properties of building elements and of buildings - Laboratory measurement of structure-borne sound from building service equipment for all installation conditions
As for the document predicting the structure borne sound levels produced in the buildings by service equipment (EN 12354 5:2009), this European standard covers sanitary installations, mechanical ventilation, heating and cooling, service equipment, lifts, rubbish chutes, boilers, blowers, pumps and other auxiliary service equipment, and motor driven car park doors; it can also be applied to other equipment attached to or installed in buildings. However, this standard is so far restricted to stationary sources.
This revised standard:
- specifies laboratory measuring methods for determining the source input data required to calculate the source installed power, i.e. the equipment free velocity, the equipment blocked force and the equipment mobility;
- defines the expression of the source installed power for any source-receiver mobility conditions, including lightweight and heavyweight receiving building elements. This power is used as input data in EN 12354 5:2009, which predicts the structure borne sound pressure level generated by the source installed in situ in a building;
- defines a method to calculate the structure borne sound power generated by the equipment fictively mounted on two reference test rigs (respectively heavyweight and lightweight) ; the two results will inform the manufacturers on the difference in the equipment performance between these two common but very different situations;
- does not now specify any method for the measurement of the source airborne sound power. If measurements of the equipment airborne sound power are required, then refer to EN ISO 3740, 47 and use the same source mounting conditions and operating conditions as in measuring using prEN 15657.
Throughout this standard the frequency range is limited to the 21 1/3 octave bands with mid-frequencies from 50 Hz to 5000 Hz.
Akustische Eigenschaften von Bauteilen und von Gebäuden - Messung des Körperschalls von haustechnischen Anlagen im Prüfstand für alle Installationsbedingungen
Hinsichtlich des Dokuments zur Voraussage der in Gebäuden durch haustechnische Anlagen erzeugten Körperschallpegel (EN 12354 -5:2009) deckt diese Europäische Norm Sanitärinstallationen, mechanische Belüftung, Heizung und Kühlung, haustechnische Anlagen, Aufzüge, Müllschlucker, Heizkessel, Gebläse, Pumpen und weiteres Zubehör zu haustechnischen Anlagen sowie Garagentüren mit Motorantrieb ab; sie kann auch auf weitere Anlagen angewendet werden, die an Gebäuden angebracht oder in diesen installiert sind. Jedoch ist die Norm bisher auf ortsfeste Quellen beschränkt.
Die vorliegende überarbeitete Norm:
- legt Prüfstandsmessverfahren zur Bestimmung der quellenbezogenen Eingabedaten fest, die zur Berechnung der installierten Schallleistung der Quelle erforderlich sind, d. h. die freie Schnelle, die blockierte Kraft und die Admittanz der Anlage;
- definiert die Angabe der installierten Schallleistung der Quelle für jegliche Bedingungen der Quellen und Empfängeradmittanz, einschließlich leichter und schwerer Empfängerbauteile. Diese Schallleistung wird in EN 12354 -5:2009, die den durch die vor Ort in einem Gebäude installierte Quelle erzeugten Körperschalldruckpegel voraussagt, als Eingabegröße genutzt;
- definiert ein Verfahren zur Berechnung der Körperschallleistung, die durch fiktiv auf zwei Bezugsprüfständen (schwer bzw. leicht) montierten Anlagen erzeugt wird; die beiden Ergebnisse dienen zur Information der Hersteller hinsichtlich der Leistungsdifferenz der Anlage zwischen diesen beiden üblichen, jedoch äußerst unterschiedlichen Situationen;
- legt derzeit kein Verfahren zur Messung der Quellen-Luftschallleistung fest. Sofern Messungen der Luftschallleistung der Anlage erforderlich sind, wird auf die Reihe EN ISO 3740 bis EN ISO 3747, 47 verwiesen, wobei die gleichen Montagebedingungen der Quelle und Betriebsbedingungen wie bei der Messung nach ENprEN 15657 anzuwenden sind.
In der gesamten vorliegenden Norm ist der Frequenzbereich auf die 21 Terzbänder mit Mittenfrequenzen von 50 Hz bis 5 000 Hz begrenzt.
Propriétés acoustiques des éléments de construction et des bâtiments - Mesurage en laboratoire des bruits structuraux des équipements de bâtiment pour toute condition d’installation
La présente Norme européenne spécifie des méthodes permettant d'estimer la puissance structurale dans les bâtiments due aux équipements techniques (sources) à partir de mesurages réalisés dans des conditions de laboratoire. Les données peuvent être utilisées comme expliqué à l'Annexe D, comme données d'entrée pour l'EN 12354-5, ou dans certaines conditions pour l’EN ISO 12354 2, pour calculer les niveaux de pression acoustique produits par les mêmes équipements lorsqu'ils sont installés dans des bâtiments. Les données peuvent également être utilisées pour comparer les performances de produits, comme expliqué à l'Annexe E.
Comme le document permettant d'estimer les niveaux de bruit structural dans les bâtiments dus aux équipements techniques (EN 12354 5), la présente Norme européenne couvre les installations de distribution d'eau et sanitaires, la ventilation mécanique, les dispositifs de chauffage et de refroidissement, les équipements techniques, les ascenseurs, les vide-ordures, les chaudières, les soufflantes, les pompes, les moteurs et autres équipements techniques auxiliaires, tels que les portes de garage motorisées ; elle peut également s'appliquer à d'autres équipements vibrants fixés aux bâtiments ou installés dans ceux-ci. La présente norme est jusqu'à présent limitée aux sources vibrantes stationnaires.
La présente Norme européenne révisée :
- spécifie des méthodes de mesurage en laboratoire permettant de déterminer les données d'entrée relatives à la source requises pour calculer la puissance installée de la source, c'est-à-dire la vitesse libre de l'équipement, la force bloquée de l'équipement et la mobilité de l'équipement ;
- s'applique à un équipement qui peut être raccordé à des plaques isolées en laboratoire. Pour des équipements tels que des systèmes de tuyauteries ou des escaliers légers soumis à des chocs [16], qui sont raccordés à au moins deux éléments de construction (mur et plancher), un système de plaques réceptrices couplées nécessitant une méthode de substitution de puissance est spécifié. Cette dernière méthode peut également être utilisée in situ lorsque l'équipement, par exemple des ascenseurs, ne peut être soumis à essai que sur site ;
- définit l'expression de la puissance structurale installée de la source pour toute condition de mobilité source-récepteur, y compris des éléments de construction récepteurs légers et lourds. Cette puissance est utilisée comme donnée d'entrée dans l'EN 12354 5, qui estime le niveau de pression acoustique produit par la source installée in situ dans un bâtiment ;
- définit une méthode de calcul de la puissance structurale totale produite par l'équipement monté fictivement sur deux ensembles de plaques d'essai de référence (respectivement à faible mobilité et à mobilité élevée) ; les deux résultats informeront les fabricants sur la différence de performance de l'équipement entre ces deux situations courantes, mais très différentes ;
- ne spécifie par de méthode de mesurage de la puissance acoustique de la source. Lorsque des mesurages de la puissance acoustique de l'équipement sont requis, se reporter aux EN ISO 3740 à EN ISO 3747, et utiliser les mêmes conditions de montage de la source et les mêmes conditions de fonctionnement que pour le mesurage selon l’EN 15657.
Akustične lastnosti gradbenih elementov in stavb - Laboratorijsko merjenje strukturalnega zvoka v gradbenih elementih servisne opreme za vse načine namestitve
Kot dokument, ki predvideva ravni strukturalnega zvoka v stavbah zaradi servisne opreme (EN 12354 5:2009), ta evropski standard obravnava sanitarne inštalacije, mehansko prezračevanje, ogrevanje in hlajenje, obratovalno opremo, dvigala, jaške za smeti, kotle, ventilatorje, črpalke in drugo pomožno obratovalno opremo ter parkirna vrata na mehaniziran pogon za avtomobile; lahko se uporablja tudi za drugo pritrjeno ali vgrajeno opremo v stavbi. Vendar ta standard je bil do zdaj omejen na nepremične vire.
Ta revidiran standard:
– določa laboratorijske merilne metode za določanje vhodnih podatkov vira, ki so potrebni za izračun inštalirane moči vira, tj. proste hitrosti opreme, blokirane sile opreme in mobilnosti opreme;
– določa izražanje inštalirane moči vira v kakršnih koli pogojih mobilnosti vira-prejemnika, vključno z lahkimi in težkimi sprejemnimi gradbenimi elementi. Ta moč se uporablja kot vhodni podatki v standardu EN 12354 5:2009, ki predvideva raven tlaka strukturnega zvoka, ki ga povzroča vir na mestu namestitve v stavbi;
– določa metodo za izračun moči strukturalnega zvoka, ki ga povzroča oprema, namišljeno pritrjena na dveh referenčnih merilnih mestih (lahkem in težkem); na podlagi teh rezultatov bodo proizvajalci spoznali razlike o zmogljivosti opreme v teh dveh običajnih, a zelo različnih situacijah;
– ne določa nobene metode za merjenje zvočne moči vira v zraku. Če so potrebne meritve zvočne moči opreme v zraku, je treba uporabiti standard EN ISO 3740, 47 z enakimi pogoji pritrjevanja virov in obratovalnimi pogoji kot pri merjenju na podlagi standarda prEN 15657.
V tem standardu je frekvenčno območje omejeno na 21 1/3 oktavnih pasov s srednjimi frekvencami od 50 Hz do 5000 Hz.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.QDPHVWLWYHAkustische Eigenschaften von Bauteilen und von Gebäuden - Messung des Körperschalls von haustechnischen Anlagen im Prüfstand für alle InstallationsbedingungenPropriétés acoustiques des éléments de construction et des bâtiments - Mesurage en laboratoire des bruits structuraux des équipements de bâtiment pour toute condition d’installationAcoustic properties of building elements and of buildings - Laboratory measurement of structure-borne sound from building service equipment for all installation conditions91.120.20L]RODFLMDAcoustics in building. Sound insulation17.140.01Acoustic measurements and noise abatement in generalICS:Ta slovenski standard je istoveten z:EN 15657:2017SIST EN 15657:2017en,fr,de01-september-2017SIST EN 15657:2017SLOVENSKI
STANDARDSIST EN 15657-1:20091DGRPHãþD
SIST EN 15657:2017
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15657
July
t r s y ICS
{ sä s t rä t r Supersedes EN
s w x w yæ sã t r r {English Version
Acoustic properties of building elements and of buildings æLaboratory measurement of structureæborne sound from building service equipment for all installation conditionsPropriétés acoustiques des éléments de construction et des bâtiments æ Mesurage en laboratoire des bruits structuraux des équipements de bâtiment pour toute condition d 5installation
Akustische Eigenschaften von Bauteilen und von Gebäuden æ Messung des Körperschalls von haustechnischen Anlagen im Prüfstand für alle Installationsbedingungen This European Standard was approved by CEN on
s s May
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s w x w yã t r s y ESIST EN 15657:2017
EN 15657:2017 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 Frequency range of measurement . 9 5 Installed power determination . 9 6 Direct measurement of source quantities . 11 6.1 Source free velocity squared measurement . 11 6.1.1 Measurement procedure . 11 6.1.2 Expression of the results . 11 6.2 Direct measurement of mobility (source and receiver) . 11 6.3 Source single equivalent blocked force squared . 12 7 Indirect measurement of source quantities (Reception plate method). 12 7.1 Principle of the method . 12 7.2 Source single equivalent blocked force . 13 7.2.1 Source single equivalent blocked force squared determination . 13 7.2.2 Low mobility reception plate(s) . 13 7.2.3 Mounting of the source specimen . 14 7.2.4 Link to EN 15657-1:2009 . 14 7.3 Source single equivalent free velocity . 14 7.3.1 Source single equivalent free velocity determination . 14 7.3.2 High mobility reception plate . 15 7.3.3 Mounting of the source specimen . 15 7.4 Source single equivalent mobility . 15 8 Precision . 15 8.1 Round Robin . 15 8.2 Repeatability . 15 8.3 Reproducibility . 15 9 Expression of results . 16 10 Test report . 16 Annex A (normative)
List of symbols . 17 Annex B (normative)
Specifications for Whirlpool baths . 19 B.1 Scope . 19 B.2 Specifications for whirlpool baths . 19 B.2.1 Mounting of the specimen . 19 B.2.2 Operating conditions . 19 B.2.3 Expression of results . 19 B.3 Operating conditions for the tub filling phase, using a reference water jet . 19 SIST EN 15657:2017
EN 15657:2017 (E) 3 B.3.1 General . 19 B.3.2 Specification for a defined water jet . 20 B.3.3 Test procedure . 20 Annex C (normative)
Power substitution method . 22 C.1 General . 22 C.2 Principle of the method . 22 C.3 Measuring procedure . 22 C.4 Specifications for low mobility plates . 23 C.5 Specifications for high mobility plates. 23 Annex D (informative)
Link to models predicting structure borne sound pressure levels . 24 D.1 General . 24 D.2 Link to EN 12354-5 . 24 D.2.1 General . 24 D.2.2 Low mobility receiver . 24 D.2.3 High mobility receiver . 25 D.3 Link to EN ISO 12354-2 . 25 Annex E (informative)
Reference structure borne sound power calculation . 26 E.1 General . 26 E.2 Low mobility reference test rig . 26 E.3 High mobility reference test rig . 26 Annex F (informative)
Example of existing test rigs . 27 F.1 Low mobility reception plates . 27 F.2 High mobility reception plate . 29 Bibliography . 30
SIST EN 15657:2017
EN 15657:2017 (E) 4 European foreword This document (EN 15657:2017) has been prepared by Technical Committee CEN/TC 126 “Acoustic properties of building elements and of buildings”, 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 January 2018, and conflicting national standards shall be withdrawn at the latest by January 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15657-1:2009. According to the CEN-CENELEC Internal Regulations, the national standards organizations 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15657:2017
EN 15657:2017 (E) 5 Introduction This European Standard is the result of merging two documents dealing with laboratory characterization of service equipment: former standard EN 15657-1:2009, which was restricted to receivers of mobility much lower than the source mobility, and draft prEN 15657-2, valid for all installation conditions. The characterization leads to the determination of the equipment installed structure-borne power, which depends on the source and the receiver, using expressions which have been simplified and approximated in order to use 1/3 octave single equivalent quantities, easily measurable in laboratories for input data for predictions. The laboratory method for measuring airborne sound, part of former EN 15657-1, is not included in this revised standard. If a measurement of the airborne sound power of the equipment is required, then the methods described in EN ISO 3740 to EN ISO 3747 should be used. SIST EN 15657:2017
EN 15657:2017 (E) 6 1 Scope This European Standard specifies methods for estimating the structure-borne sound power produced in buildings by services equipment (sources) from measurements under laboratory conditions. The data can be used as explained in Annex D, as input for EN 12354-5, or under certain conditions for EN ISO 12354-2, to calculate the sound pressure levels produced by the same equipment when installed in buildings. The data can also be used to compare the performance of products as explained in Annex E. As for the document predicting the structure-borne sound levels produced in the buildings by service equipment (EN 12354-5), this European Standard covers water supply and sanitary installations, mechanical ventilation, heating and cooling devices, service equipment, lifts, rubbish chutes, boilers, blowers, pumps, motors and other auxiliary service equipment, such as motor driven car park doors; it can also be applied to other vibrating equipment attached to or installed in buildings. This standard is so far restricted to steady-state vibrating sources. This revised European Standard: — specifies laboratory measuring methods for determining the source input data required to calculate the source installed power, i.e. the equipment free velocity, the equipment blocked force and the equipment mobility; — applies to equipment, which can be connected to isolated plates in the laboratory. For equipment, such as pipe systems or impacted lightweight stairs [16], which are connected to at least two building elements (wall and floor), a coupled reception plate system is specified, which requires the use of a power substitution method. The later method can also be used in situ when the equipment, such as lifts, can only be tested in situ; — defines the expression of the source installed structure-borne power for any source-receiver mobility conditions, including lightweight and heavyweight receiving building elements. This power is used as input data in EN 12354-5, which predicts the sound pressure level generated by the source installed in situ in a building; — defines a method to calculate the total structure-borne sound power generated by the equipment fictively mounted on two sets of reference test plates (respectively of low mobility and of high mobility); the two results will inform the manufacturers on the difference in the equipment performance between these two common but very different situations; — does not specify any method for the measurement of the source airborne sound power. If measurements of the equipment airborne sound power are required, then refer to EN ISO 3740 to EN ISO 3747 and use the same source mounting conditions and operating conditions as in measuring using EN 15657. 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 document (including any amendments) applies. EN ISO 10140-3, Acoustics - Laboratory measurement of sound insulation of building elements - Part 3: Measurement of impact sound insulation (ISO 10140-3) EN ISO 10848-1, Acoustics - Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - Part 1: Frame document (ISO 10848-1:2006) ISO 5348, Mechanical vibration and shock — Mechanical mounting of accelerometers SIST EN 15657:2017
EN 15657:2017 (E) 7 ISO 7626-1:2011, Mechanical vibration and shock — Experimental determination of mechanical mobility — Part 1: Basic terms and definitions, and transducer specifications ISO 7626-2, Mechanical vibration and shock — Experimental determination of mechanical mobility — Part 2: Measurements using single-point translation excitation with an attached vibration exciter ISO 7626-5, Vibration and shock — Experimental determination of mechanical mobility — Part 5: Measurements using impact excitation with an exciter which is not attached to the structure ISO 9611, Acoustics — Characterization of sources of structure-borne sound with respect to sound radiation from connected structures — Measurement of velocity at the contact points of machinery when resiliently mounted ISO 16063-21, Methods for the calibration of vibration and shock transducers — Part 21: Vibration calibration by comparison to a reference transducer ISO 18312-1, Mechanical vibration and shock — Measurement of vibration power flow from machines into connected support structures — Part 1: Direct method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. A list of the symbols and units used in this standard is given in Annex A. 3.1 source service equipment or component of service equipment under test 3.2 receiver building element to which the service equipment is to be attached, that can be a floor or a wall or a combination of floor and walls Note 1 to entry: For the laboratory test, the receivers are reception plates, details of which are described in Clause 7. 3.3 source free velocity squared 2f,RMSv expression of source activity, in terms of RMS value, at each of the contacts (the connections with the receiver building elements when installed), with the source either freely suspended (disconnected from the receiver) or connected to a much higher mobility receiver called high mobility reception plate (see Clause 7), when operating under conditions described in the test report 3.4 single equivalent source free velocity squared 2f,RMS,eqv expression of the source activity, in terms of RMS value, which is obtained either as the sum of the squared RMS free velocities over the N contacts, =∑N22f,RMS,eqf,RMS,iivv (1) or approximately from the high mobility reception plate power defined in 7.3.2 SIST EN 15657:2017
EN 15657:2017 (E) 8 3.5 source blocked force squared 2b,RMSF expression of the source activity, in terms of RMS value, as the force at each of the contacts (the connections with the receiver building elements when installed), with the source connected to a much lower mobility receiver, called low mobility reception plate (see 7.2.2), also when operating under the same conditions described in the report 3.6 single equivalent blocked force squared 2b,RMS,eqF expression of the source activity, in terms of RMS value, as the single equivalent blocked force, which is defined as the sum of the squared RMS blocked forces over the N contacts, =∑N22b,RMS,eqb,RMS,iiFF (2) and obtained approximately from the low mobility reception plate power defined in 7.2 3.7 point mobility
Yi ratio of the complex (magnitude and phase) vibrational velocity that a point force produces at its point of application i, to the complex force applied, both force and velocity being normal to the receiver 3.8 single equivalent mobility
Yeq quantity approximated as the mean value of the point mobility at each contact i, averaged over the N contacts, which for the magnitude, is according to: ≈∑Neqii1YYN (3) and for the real part, is according to: ≈∑Neqii1Re()Re()YYN (4) Note 1 to entry: For receiver structures, the mean values are over the contact locations, if known. If the contact locations are not known, then the mean values are over the plate area. 3.9 mobility in 1/3 octave bands
Y1/3 oct value obtained from direct measurement in narrow frequency bands (see 6.2); 1/3 octave values of both mobility magnitude and real part are obtained as the mean value of the narrow band data averaged over the frequencies within the band considered (assuming M frequency components k): SIST EN 15657:2017
EN 15657:2017 (E) 9 =∑Mk1/3octk1YYM (5) =∑M1/3octkk1Re()Re()YYM (6) Note 1 to entry: The magnitude of source mobility only is required and can be measured directly as the ratio of velocity to applied force, both in 1/3 octave. For the receiver mobility, both the magnitude and real part are required, and shall be measured as complex values. 3.10 characteristic mobility of a plate
Y point mobility of an infinite plate having the same thickness and made of the same material as the plate considered ∞=⋅18/()YmB (7) Note 1 to entry: The characteristic input mobility is a real value, independent of frequency and dependent on the mass per unit area m and the bending stiffness B of the plate. 3.11 installed power P inst calculated structural power injected to each building element to which the equipment is connected; this power is the equipment input data for the prediction according to EN 12354-5 Note 1 to entry: The characterization of equipment connected to two or three building elements (e.g. pipes connected to floor and walls) will lead to two or three installed power components respectively. 4 Frequency range of measurement The measurements and calculation shall be performed using the one-third octave bands having the following centre frequencies in Hz: Table 1 — Centre frequencies in Hz 50 63 80 100 125 160 200 250 315 400 500 630 800 1 000 1 250 1 600 2 000 2 500 3 150
The frequency bands where measured values show signal to noise ratio problems, shall be reported in the test report. 5 Installed power determination For all installation conditions, the installed power level in dB re 10 «12 Watt is approximated from the single equivalent free velocity level in dB re 10 «9 m/s of the source and the single equivalent mobilities of the source and the receiver, using Y0 = 1m/(Ns) as reference, and all quantities being evaluated in 1/3 octave bands, according to: SIST EN 15657:2017
EN 15657:2017 (E) 10 ≈+−+0221060,,,,Re().lgReqWinstvfeqSeqReqdBYYLLdBYY (8) Explanations about how this approximated expression of the installed power has been obtained can be found in references [1] to [4]. It should be noted that the single equivalent mobilities in Formula (8) are approximated from point mobilities, as defined in 3.9. The approximation given in Formula (8) can be reduced for the case when the receiver mobility is much lower than the source mobility (by a factor of 10 at least). The only required source quantity is then the equivalent blocked force, leading to the following expression in terms of power levels in dB re 10 «12 Watt and force levels in dB re 10 «6 N: ≈+010,,Re()lgReqWinstFbeqYLdBLY (9) For any other mobility conditions, Formula (8) shall be used. NOTE Power levels are calculated as 10 lg(P/P0), P0 being the reference, as velocity and force levels are calculated as 20 lg(vRMS/v0) and 20 lg(FRMS/F0) respectively. The following Clauses 6 and 7 specify methods for the measurements of the input quantities used in Formulae (8) and (9). Only direct measurements of the receiver mobilities are proposed. There are three ways of obtaining the input quantities for the source: — direct measurements of the source free velocity squared and mobility, leading in principle to more precise results; — indirect measurements of the source free velocity squared and blocked force squared using the reception plate method, which is a more robust laboratory approach to estimate the source single equivalent quantities (free velocity and blocked force, from which the mobility magnitude is deduced), but not as accurate in principle as direct measurements; — combination of direct and indirect measurements, e.g. direct measurement of source free velocity squared and indirect measurement of blocked force squared using the reception plate method. This standard does not consider direct measurements of contact forces, because of possible changes to the contact conditions, when inserting force transducers between the source and receiver. However, ISO 18312-1 gives guidance on direct measurement of force required for direct measurement of power. SIST EN 15657:2017
EN 15657:2017 (E) 11 6 Direct measurement of source quantities 6.1 Source free velocity squared measurement 6.1.1 Measurement procedure The translational velocity is measured at each contact point, according to ISO 9611. The component of velocity corresponds to the excitation normal to the receiving structure when the source is installed. The results are expressed in terms of 1/3 octave (RMS) velocity levels in dB re 10 «9 m/s (symbol: Lvf,i for contact point i). The source is mounted on vibration isolators according to ISO 9611, as indicated in Figure 1.
Key 1 source 2 vibration isolator Figure 1 — Source mounted on vibration isolators NOTE As an alternative way, the source can be freely suspended. 6.1.2 Expression of the results For each frequency band, the velocity levels Lvf,i are energetically summed over N contact points, leading to the source single equivalent free velocity level Lvf,eq: =∑vf,iNL/10vf,eqi10 10lg()L (10) Formula (10) corresponds to Formula (1) when expressed in dB. 6.2 Direct measurement of mobility (source and receiver) The recommendations for direct measurement apply to both sources and receivers. However, sources should be isolated according to ISO 9611 (as shown in Figure 1) or freely suspended, and receivers should be dynamically unloaded, when measuring their mobility. Point mobility measurements at the contact points are required for estimating the source equivalent mobility magnitude according to Formula (3), the receiver equivalent mobility magnitude according to Formula (3), and the receiver equivalent mobility real part according to Formula (4). The measurements are performed according to ISO 7626-1 and limited to single point translational excitation (normal to the receiving plate) according to ISO 7626-2; impact excitation is allowed, according to ISO 7626-5. The ISO 7626- series considers mobility measurements in narrow frequency bands. 1/3 octave band values are then obtained according to 3.10. SIST EN 15657:2017
EN 15657:2017 (E) 12 6.3 Source single equivalent blocked force squared The source single equivalent blocked force squared level in dB re 10 «6 N is then calculated from the directly measured source single equivalent free velocity level and the directly measured source equivalent mobility magnitude as: =−−2201060,,,lgSeqFbeqvfeqYLLdBdBY (11) 7 Indirect measurement of source quantities (Reception plate method) 7.1 Principle of the method The source is connected to reception plate(s). The vibration transducers used shall be calibrated according to ISO 16063-21 and fixed according to ISO 5348. Both the spatially averaged vibration velocity level Lv,i at N locations on the plate and the plate structural reverberation time Ts shall be measured according to EN ISO 10848-1. For both cases of application used in this standard (low mobility and high mobility reception plates), the measurement points shall not be less than 6 in number, should be located at least 0,5 m apart and at least 0,1 m from the equipment connection points. The number and location of the measurement points shall be validated using the power substitution method defined in Annex C. The spatial average of the plate velocity is calculated as: =∑,i/10Ni110 10lg()vLvLN (12) The velocity levels are expressed in dB re 10 «9 m/s and are corrected for background vibration with the same procedure as for sound p
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SLOVENSKI STANDARD
oSIST prEN 15657:2016
01-marec-2016
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Acoustic properties of building elements and of buildings - Laboratory measurement of
structure-borne sound from building service equipment for all installation conditions
Akustische Eigenschaften von Bauteilen und von Gebäuden - Messung des
Körperschalls von haustechnischen Anlagen im Prüfstand für alle
Installationsbedingungen
Propriétés acoustiques des éléments de construction et des bâtiments - Mesurage en
laboratoire des bruits structuraux des équipements de bâtiment pour toute condition
d’installation
Ta slovenski standard je istoveten z: prEN 15657
ICS:
17.140.01 $NXVWLþQDPHUMHQMDLQ Acoustic measurements and
EODåHQMHKUXSDQDVSORãQR noise abatement in general
91.120.20 $NXVWLNDYVWDYEDK=YRþQD Acoustics in building. Sound
L]RODFLMD insulation
oSIST prEN 15657:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 15657:2016
DRAFT
EUROPEAN STANDARD
prEN 15657
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2016
ICS 91.120.20 Will supersede EN 15657-1:2009
English Version
Acoustic properties of building elements and of buildings -
Laboratory measurement of structure-borne sound from
building service equipment for all installation conditions
Propriétés acoustiques des éléments de construction et Akustische Eigenschaften von Bauteilen und von
des bâtiments - Mesurage en laboratoire des bruits Gebäuden - Messung des Körperschalls von
structuraux des équipements de bâtiment pour toute haustechnischen Anlagen im Prüfstand für alle
condition d'installation Installationsbedingungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 126.
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-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.
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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15657:2016 E
worldwide for CEN national Members.
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Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Source power determination . 9
4.1 Installed power determination . 9
5 Direct measurement of source quantities . 10
5.1 Source free velocity measurement . 10
5.2 Direct measurement of mobility (source and receiver) . 10
5.3 Source single equivalent blocked force . 11
6 Indirect measurement of source quantities (Reception plate method). 11
6.1 Principle of the method . 11
6.2 Source single equivalent blocked force . 12
6.2.1 Source single equivalent blocked force determination . 12
6.2.2 Low mobility reception plate(s) . 12
6.2.3 Mounting of the source specimen . 13
6.2.4 Link to EN 15657-1:2009 . 13
6.3 Source single equivalent free velocity . 13
6.3.1 Source single equivalent free velocity determination . 13
6.3.2 High mobility reception plate . 13
6.3.3 Mounting of the source specimen . 13
6.4 Source single equivalent mobility . 14
7 Precision . 14
7.1 Repeatability . 14
7.2 Reproducibility . 14
8 Expression of results . 14
9 Test report . 14
Annex A (normative) List of symbols . 16
Annex B (informative) Link to models predicting structure borne sound pressure levels . 18
B.1 Link to EN 12354-5 . 18
B.2 Link to EN 12354-2 . 19
Annex C (informative) Reference structure borne sound power calculation . 20
C.1 General . 20
C.2 Low mobility reference test rig . 20
C.3 High mobility reference test rig . 20
Annex D (informative) Example of existing test rigs . 21
D.1 Low mobility reception plates . 21
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D.2 High mobility reception plate . 23
Annex E (normative) Specifications for Whirlpool baths . 24
E.1 Scope . 24
E.2 Specifications for whirlpool baths . 24
E.3 Operating conditions for the tub filling phase, using a reference water jet . 24
Annex F (normative) Power substitution method . 27
F.1 General . 27
F.2 Principle of the method . 27
F.3 Measuring procedure . 27
F.4 Specifications for low mobility plates . 27
F.5 Specifications for high mobility plates. 28
F.6 Equivalent loss factor determination . 28
Bibliography . 29
3
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European foreword
This document (prEN 15657:2016) has been prepared by Technical Committee CEN/TC 126 “Acoustic
properties of building elements and of buildings”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15657-1:2009.
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Introduction
The aim of the standard is to estimate the structural power injected to the building element to which
the equipment is connected (called installed power) for all installation conditions: where the equipment
mobilities are higher or lower than, or match with the receiver mobilities (see definition of mobility in
Clause 3) and therefore including heavyweight and lightweight receiving building elements. This power
is used as input data in predicting the structure-borne sound levels produced in the buildings by the
equipment and specified in EN 12354-5:2009. The existing edition of EN 12354-5:2009 is restricted to
heavyweight buildings and is about to be revised, in order to take into account lightweight buildings.
The installed power depends on the source and the receiver mobilities, as well as on the source activity
i.e. the free velocity or blocked force. These quantities (source and receiver mobilities as well as source
activity) are to be evaluated and this standard specifies the methods allowing their determination.
The expression giving the installed power has been simplified and approximated in order to
use 1/3 octave single equivalent quantities, easily measurable in laboratory as input data (see
section 4).
This standard corresponds to the merging of former standard EN 15657-1:2009, which was restricted
to receivers of mobility much lower than the source mobility, with draft prEN 15657-2, valid for all
installation conditions. The merging of the two parts has been decided at TC level.
In the revised standard, the measurement of airborne sound has been removed. If a measurement of the
airborne sound power of the equipment is required, then refer to EN ISO 3740:2000, 47 and use the
same source mounting conditions and operating conditions as in measuring using prEN 15657.
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1 Scope
As for the document predicting the structure borne sound levels produced in the buildings by service
equipment (EN 12354-5:2009), this European standard covers sanitary installations, mechanical
ventilation, heating and cooling, service equipment, lifts, rubbish chutes, boilers, blowers, pumps and
other auxiliary service equipment, and motor driven car park doors; it can also be applied to other
equipment attached to or installed in buildings. However, this standard is so far restricted to stationary
sources.
This revised standard:
— specifies laboratory measuring methods for determining the source input data required to calculate
the source installed power, i.e. the equipment free velocity, the equipment blocked force and the
equipment mobility;
— defines the expression of the source installed power for any source-receiver mobility conditions,
including lightweight and heavyweight receiving building elements. This power is used as input
data in EN 12354-5:2009, which predicts the structure borne sound pressure level generated by
the source installed in situ in a building;
— defines a method to calculate the structure borne sound power generated by the equipment
fictively mounted on two reference test rigs (respectively heavyweight and lightweight) ; the two
results will inform the manufacturers on the difference in the equipment performance between
these two common but very different situations;
— does not now specify any method for the measurement of the source airborne sound power. If
measurements of the equipment airborne sound power are required, then refer to EN ISO 3740, 47
and use the same source mounting conditions and operating conditions as in measuring using
prEN 15657.
Throughout this standard the frequency range is limited to the 21 1/3 octave bands with mid-
frequencies from 50 Hz to 5000 Hz.
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 document (including any amendments) applies.
EN ISO 10140-3, Acoustics — Laboratory measurement of sound insulation of building elements — Part 2:
Measurement of impact sound insulation
EN ISO 10848-1, Acoustics - Laboratory measurement of the flanking transmission of airborne and impact
sound between adjoining rooms - Part 1: Frame document (ISO 10848-1)
ISO 1683, Acoustics — Preferred reference values for acoustical and vibratory levels
ISO 5348, Mechanical vibration and shock — Mechanical mounting of accelerometers
ISO 7626-1:2011, Mechanical vibration and shock — Experimental determination of mechanical mobility
— Part 1: Basic terms and definitions, and transducer specifications
ISO 7626-2, Mechanical vibration and shock — Experimental determination of mechanical mobility —
Part 2: Measurements using single-point translation excitation with an attached vibration exciter
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ISO 7626-5, Vibration and shock — Experimental determination of mechanical mobility — Part 5:
Measurements using impact excitation with an exciter which is not attached to the structure
ISO 9611:1996, Acoustics — Characterization of sources of structure-borne sound with respect to sound
radiation from connected structures — Measurement of velocity at the contact points of machinery when
resiliently mounted
ISO 16063-21, Methods for the calibration of vibration and shock transducers — Part 21: Vibration
calibration by comparison to a reference transducer
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE A list of the symbols and units used in this standard is given in Annex A.
3.1
source
service equipment or component of service equipment (to be connected to building structures) under
test
3.2
receiver
building element to which the tested service equipment is to be attached, that can be a floor or a wall or
a combination of floor and walls
Note 1 to entry: For the laboratory test, the receivers are reception plates, details of which are described in
section 6.
3.3
source free velocity
expression of source activity at each of the contacts (the connections with the receiver building
elements when installed), with the source either freely suspended (disconnected from the receiver) or
connected to a much higher mobility receiver called high mobility reception plate (see section 6), when
operating under conditions described in the test report
3.4
single equivalent source free velocity
2
v
f ,,rms eq
expression of the source activity, which is obtained either as the sum of the squared rms free velocities
over the N contacts,
N
2 2
vv= (1)
f ,,rms eq ∑ f ,,rms i
i
or approximately from the high mobility reception plate power defined in section 6.3
3.5
source blocked force
expression of the source activity as the force at each of the contacts (the connections with the receiver
building elements when installed), with the source connected to a much lower mobility receiver, called
heavy reception plate, also when operating under the same conditions described in the report
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3.6
single equivalent blocked force
2
F
b,,rms eq
expression of the source activity as the single equivalent blocked force, which is defined as the sum of
the squared rms blocked forces over the N contacts,
N
2 2
FF= (2)
b,,rms eq b,,rms i
∑
i
and obtained approximately from the low mobility reception plate power defined in section 6.2
3.7
point mobility
ratio Yi of the complex (magnitude and phase) vibrational velocity that a point force produces at its
point of application i, to the force applied, both force and velocity being normal to the receiver
3.8
single equivalent mobility
Y
eq
quantity obtained approximately as the mean value of the point mobility at each contact i, averaged
over the N contacts, which for the magnitude, is according to:
N
1
YY≈ (3)
eq i
∑
N
i
and for the real part, is according to:
N
1
Re(YY)≈ Re( ) (4)
eq ∑ i
N
i
3.9
mobility in 1/3 octave bands
value obtained from measurement in narrow frequency bands (see section 5)
Note 1 to entry: 1/3 octave values of both mobility magnitude and real part are obtained as the mean value of
the narrow band data averaged over the frequencies within the band considered (M frequency components k):
M
1
YY= (5)
k
∑
1/3oct
M
k
M
1
Re(YY) = Re( ) (6)
1/3oct k
∑
M
k
The magnitudes and real parts of mobilities can also be measured directly in 1/3 octaves using existing measuring
devices. In this standard, all the results are expressed in 1/3 octave bands.
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3.10
characteristic mobility of a plate
point mobility of an infinite plate having the same thickness and made of the same material as the plate
considered
3.11
installed power
structural power (calculated) injected to each building element to which the equipment is connected
(input datum for the prediction method).
Note 1 to entry: Equipment connected to two or three building elements (whirlpool bath connected to floor and
walls for example) will be characterized by two or three installed power components respectively.
4 Source power determination
4.1 Installed power determination
−12
For all installation conditions, the installed power level in dB ref. 10 Watt is approximated from the
−9
single equivalent free velocity level in dB ref. 10 m/s of the source and the single equivalent mobilities
of the source and the receiver, all quantities being evaluated in 1/3 octave bands, according to:
Re(Y )
Req
(7)
LL≈ 10lg +−60
Winst veq
22
Y + Y
Seq Req
Explanations about how this approximated expression of the installed power has been obtained can be
found in references [1] to [4]. It should be noted that the single equivalent mobilities in Formula (7) are
approximated from point mobilities, as defined in Clause 3.8.
The approximation given in Formula (7) can be reduced for the case when the receiver mobility is much
lower than the source mobility (by a factor of 10 at least). The only required source quantity is then the
−12
equivalent blocked force, leading to the following expression in terms of power levels in dB ref 10
−6
Watt and force levels in dB ref 10 N:
L ≈+10lg(Re(YL)) (8)
Winst Req Fbeq
For any other mobility conditions, Formula (7) shall be used.
The following Clauses 5 and 6 specify methods for the measurements of the input quantities used in
Formulae (7) and (8). Only direct measurements of the receiver mobilities are proposed. There are
three ways of obtaining the input quantities for the source:
— direct measurements of the source free velocity and mobility, leading in principle to more precise
results;
— indirect measurements of the source free velocity and blocked force using the reception plate
method, which is a more robust laboratory approach to estimate the source single equivalent
quantities (free velocity and blocked force, from which the mobility magnitude is deduced), but not
as accurate in principle as direct measurements;
— a combination of direct and indirect measurements, e.g. direct measurement of source free velocity
and indirect measurement of blocked force using the reception plate method.
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5 Direct measurement of source quantities
5.1 Source free velocity measurement
The translational velocity is measured at each contact point, according to ISO 9611. The component of
velocity corresponds to the excitation normal to the receiving structure when the source is installed.
−9
The results are expressed in terms of 1/3 octave (rms) velocity levels in dB ref. 10 m/s according to
ISO 1683 (symbol: L for contact point i). The source is mounted on isolators as indicated in Figure 1.
vf,i
Key
1 source
2 isolator
Figure 1 — Source mounted on isolators
NOTE As an alternative way, the source can be freely suspended.
Expression of the results
For each frequency band, the velocity levels L are energetically summed over the contact points,
vf,i
leading to the source single equivalent free velocity level L :
vf,eq
N
L
vf ,i/10
L = 10lg( 10 ) (9)
vf ,eq ∑
i
Formula (9) corresponds to Formula (1) when expressed in dB.
5.2 Direct measurement of mobility (source and receiver)
The recommendations for direct measurement apply to both sources and receivers. However, sources
should be isolated according to ISO 9611 (as shown in Figure 1) or freely suspended, and receivers
should be statically unloaded, when measuring mobility. Point mobility measurements at the contact
points are required for estimating the source equivalent magnitude of mobility according to
Formula (3), the receiver equivalent magnitude of mobility according to Formula (3), and the receiver
equivalent real part of mobility according to Formula (4).
The measurements are performed according to ISO 7626-1:2011 and limited to single point
translational excitation (normal to the receiving plate) according to ISO 7626-2; impact excitation is
allowed, according to ISO 7626-5. The ISO 7626- series considers mobility measurements in narrow
frequency bands. 1/3 octave band values are then obtained using Formula (5) for sources, and
Formulae (5) and (6) for receivers.
NOTE Since the source mobility is required only as a magnitude, for the installed power (Formula (7)), this
can be obtained directly in 1/3 octaves.
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5.3 Source single equivalent blocked force
−6
The source single equivalent blocked force level in dB ref. 10 N is then calculated from the directly
measured source single equivalent free velocity level and the directly measured source equivalent
mobility magnitude as:
2
LL=−−10lg Y 60 (10)
Fb,,eq vf eq S ,eq
6 Indirect measurement of source quantities (Reception plate method)
6.1 Principle of the method
The source is connected to the reception plate. The vibration transducers used shall be calibrated
according to ISO 16063-21 and fixed according to ISO 5348. Both the spatially averaged vibration
velocity level L at N locations on the plate and the plate structural reverberation time T shall be
v,i s
measured according to EN ISO 10848-1:2006. For both cases of application used in this standard (low
mobility and high mobility reception plates), the measurement points shall not be less than 6 and
located away from the equipment connection points. The number and location of the measurement
points shall be validated using the power substitution method defined in Annex F.
The energetic space average of the plate velocity L is calculated as:
v
N
1 L
vi, /10
L = 10lg( 10 ) (11)
v ∑
N
i
−9
The velocity levels are expressed in dB ref. 10 m/s and are corrected for background vibration with
the same procedure as for sound pressure levels, according to EN ISO 10140-3; levels at the limit of
measurement shall be clearly indicated.
The plate loss factor η is estimated from the structural reverberation time T as:
S
2.2
η = (12)
( f .T )
S
For the low mobility reception plate, there should be no significant difference if the structural
reverberation time is measured with or without the equipment connected to the plate. Conversely, the
high mobility reception plate is dynamically loaded by the equipment and the structural reverberation
time measurements shall be performed with the equipment attached to the plate.
−12
The structural power level injected to the reception plate L in dB ref. 10 Watt is calculated in 1/3
Ws
octave bands from the plate space averaged velocity level L , mass per unit area m plate area S and
v ,
loss factorη :
L 10lg(2πηfm S )+−L 60 (13)
Ws v
The reception plate point mobilities are then measured at the source connection points according to
ISO 7626-1:2011 and ISO 7626-2 in order to determine the reception plate equivalent mobility using
Formulae (3) and (4).
For the low mobility reception plate, there should be no significant difference if the receiver point
mobilities are measured with or without the equipment connected to the plate. Conversely, the high
mobility reception plate is dynamically loaded by the equipment and the receiver point mobility
measurements shall be performed without the equipment attached to the plate.
11
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6.2 Source single equivalent blocked force
6.2.1 Source single equivalent blocked force determination
The source single equivalent blocked force is obtained indirectly by mounting the source according to
6.2.3, to a low mobility reception plate as defined in 6.2.2. The method defined in 6.1 is then applied
in order to determine the low mobility reception plate power level L and equivalent
Ws,low
mobilityY .
R,,low eq
−6
The source single equivalent blocked force level in dB ref. 10 N is approximately:
LL≈−10lg(Re(Y )) (14)
Fb,eq Ws,low R,,low eq
is the single equivalent real part of the mobility of the low mobility reception plate, where
Re(Y )
R,,low eq
from Formula (4),
N
1
Re(YY)= Re( ) (15)
R,,low eq R,,low i
∑
N
i
6.2.2 Low mobility reception plate(s)
Key
1 resilient material
Figure 2 — Schematic drawing of the test rig (case with three low mobility plates)
The test rig can be made of up to three low mobility pl
...
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