FprEN IEC 60034-9:2021

Rotating electrical machines - Part 9: Noise limits

IEC 60034-9:2021 specifies test methods for the determination of sound power level of rotating electrical machines and specifies maximum A-weighted sound power levels for factory acceptance testing of network-supplied, rotating electrical machines in accordance with lEC 60034-1, having methods of cooling according to lEC 60034-6 and degrees of protection according to lEC 60034-5, and having the following characteristics: - standard design, either AC or DC, without additional special electrical, mechanical, or acoustical modifications intended to reduce the sound power level - rated output from 1 kW (or kVA) up to and including 5 500 kW (or kVA) - rated speed not greater than 3 750 min–1 This fifth edition cancels and replaces the fourth edition, published in 2003 and its amendment 1, published in 2007. This edition includes the following significant technical changes with respect to the previous edition: a) In Table 2 and Table 3 cooling methods IC01, IC11, IC21 and IC31, IC71, IC81 are now covered. b) This edition adds Table 3 for 60 Hz machines, whereas Table 2, which covers only 50 Hz machines, has no change in levels. c) In Table 3, grade A is added to harmonize the highest levels seen in IEC and NEMA, whereas grade B was added to harmonize the lowest, more restrictive levels seen in IEC and NEMA. d) The clause “Determination of noise increments caused by converter supply” has been shifted to Annex B and renamed “Information on typical noise increments caused by converter supply”.

Drehende elektrische Maschinen - Teil 9: Geräuschgrenzwerte

Machines électriques tournantes - Partie 9: Limites de bruit

IEC 60034-9:2021 spécifie les méthodes d’essai pour la détermination du niveau de puissance acoustique des machines électriques tournantes et spécifie les niveaux maximaux de puissance acoustique pondérée A pour les essais de réception en usine des machines électriques tournantes alimentées par réseau conformes à l’IEC 60034-1, dont les modes de refroidissement sont conformes à l’IEC 60034-6 et les degrés de protection conformes à l’IEC 60034-5, et qui présentent les caractéristiques suivantes: - conception normalisée, courant alternatif ou courant continu, sans modifications spéciales électriques, mécaniques ou acoustiques destinées à réduire le niveau de puissance acoustique - puissance assignée de 1 kW (ou kVA) jusqu'à 5 500 kW inclus (ou kVA) - vitesse assignée inférieure ou égale à 3 750 min–1 Cette cinquième édition annule et remplace la quatrième édition, parue en 2003 et son amendement 1, paru en 2007. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente: a) Le Tableau 2 et le Tableau 3 couvrent désormais les méthodes de refroidissement IC01, IC11, IC21 et IC31, IC71, IC81. b) La présente édition ajoute le Tableau 3 pour les machines de 60 Hz, tandis que le Tableau 2, qui ne couvre que les machines de 50 Hz, ne présente pas de modification de niveaux. c) Dans le Tableau 3, l’ajout du degré A vise à harmoniser les niveaux les plus élevés définis par l’IEC et NEMA, tandis que l’ajout du degré B visait à harmoniser les niveaux plus faibles mais plus restrictifs également définis par l’IEC et NEMA. d) L'article "Détermination de l’augmentation de bruit provoquée par l’alimentation du convertisseur" a été transféré dans l’Annexe B et renommé "Informations sur l’augmentation type de bruit provoquée par l’alimentation du convertisseur".

Električni rotacijski stroji - 9. del: Mejne vrednosti hrupa

General Information

• Status: Not Published
• Publication Date: 12-Dec-2021
• Withdrawal Date: 12-Jun-2022
• ICS: 29.160 - Rotating machinery
• ICS: 29.160.01 - Rotating machinery in general
• Technical Committee: CLC/TC 2 - Rotating machinery
• Drafting Committee: IEC/TC 2 - IEC_TC_2
• Current Stage: 5060 - Voting results sent to TC, SR - Formal Approval
• Start Date: 10-Sep-2021
• Completion Date: 10-Sep-2021
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: kSIST FprEN IEC 60034-9:2021 - Rotating electrical machines - Part 9: Noise limits

Relations

• Revises: EN 60034-9:2005 - Rotating electrical machines - Part 9: Noise limits
• Effective Date: 26-Jan-2023
• Revises: EN 60034-9:2005/A1:2007 - Rotating electrical machines - Part 9: Noise limits
• Effective Date: 13-Jul-2021

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 60034-9:2021
01-april-2021
Električni rotacijski stroji - 9. del: Omejitve hrupa
Rotating electrical machines - Part 9: Noise limits
Drehende elektrische Maschinen - Teil 9: Geräuschgrenzwerte
Machines électriques tournantes - Partie 9: Limites de bruit
Ta slovenski standard je istoveten z: prEN IEC 60034-9:2021
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
oSIST prEN IEC 60034-9:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60034-9:2021

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oSIST prEN IEC 60034-9:2021
2/2034/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60034-9 ED5
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2021-01-29 2021-04-23
SUPERSEDES DOCUMENTS:
2/1994/CD, 2/2022A/CC

IEC TC 2: ROTATING MACHINERY
SECRETARIAT: SECRETARY:
United Kingdom Mr Charles Whitlock
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:


Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for Vote
(CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

TITLE:
Rotating electrical machines – Part 9: Noise limits

PROPOSED STABILITY DATE: 2024

NOTE FROM TC/SC OFFICERS:


Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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oSIST prEN IEC 60034-9:2021
– 2 – IEC CDV 60034-9  IEC 2021
CONTENTS
CONTENTS . 2
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Methods of measurement . 9
5 Test conditions . 9
5.1 Machine mounting . 9
5.1.1 Precautions . 9
5.1.2 Resilient mounting . 9
5.1.3 Rigid mounting . 10
5.2 Test operating conditions . 10
6 Sound power level limits . 10
7 Determination of sound pressure level . 11
8 Declaration and verification of sound power values . 11
9 Bibliography . 12
Annex A (informative) – Levels of typical conversion values from power to pressure . 17
Annex B (informative) – Information on typical noise increment
...