SIST EN IEC 60034-14:2019

Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity (IEC 60034-14:2018)

NEW!IEC 60034-14:2018 is available as IEC 60034-14:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60034-14:2018 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover. It is applicable to DC and three-phase AC machines, with shaft heights 56 mm and higher and a rated output up to 50 MW, at operational speeds from 120 min–1 up to and including 15 000 min–1. This new edition includes the following significant technical changes with respect to the previous edition:
- Improved explanation of the definition “free suspension”.
- Addition of an alternative method of rigid mount
- Definition of an improved option for shaft key.

Drehende elektrische Maschinen - Teil 14: Mechanische Schwingungen von bestimmten Maschinen mit einer Achshöhe von 56 mm und höher - Messung, Bewertung und Grenzwerte der Schwingstärke (IEC 60034-14:2018)

Machines électriques tournantes - Partie 14: Vibrations mécaniques de certaines machines de hauteur d'axe supérieure ou égale à 56 mm - Mesurage, évaluation et limites de l'intensité vibratoire (IEC 60034-14:2018)

NEW!IEC 60034-14:2018 est disponible sous forme de IEC 60034-14:2018 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.

L’IEC 60034-14:2018 spécifie les procédures d'essai d’acceptation de vibration en usine et les limites de vibration pour certaines machines électriques, dans des conditions spécifiées, sans être couplées à une charge ou à une machine entraînée. Elle est applicable aux machines à courant continu et aux machines triphasées à courant alternatif de hauteur d'axe supérieure ou égale à 56 mm et de puissance assignée inférieure ou égale à 50 MW, à des vitesses de fonctionnement de 120 min–1 jusqu'à et y compris 15 000 min–1. Cette nouvelle édition inclue les modifications techniques majeures suivantes par rapport à l’édition précédente:
- Meilleure explication de la définition «suspension libre».
- Ajout d’une méthode alternative de montage rigide.
- Définition d’option améliorée pour les clavettes d’arbre.

Električni rotacijski stroji - 14. del: Mehanske vibracije nekaterih strojev za višino gredi 56 mm in več - Meritve, vrednotenje in mejne vrednosti stopenj jakosti (IEC 60034-14:2018)

Ta del standarda IEC 60034 določa preskušanje ustreznosti za postopke preskušanja vibracij in omejitve vibracij za nekatere električne stroje pod določenimi pogoji, ko so odklopljeni od vseh obremenitev ali pogonskih strojev.
Uporablja se za enosmerne in izmenične trifazne stroje za višino gredi 56 mm in več ter nazivno moč do 50 MW pri obratovalnih hitrostih od 120 min–1 do vključno 15.000 min–1.
Ta dokument se ne uporablja za stroje, nameščene in situ (na kraju samem), trifazne komutatorske motorje, enofazne stroje, trifazne stroje, ki se upravljajo v enofaznih sistemih, navpične vodne generatorje, turbinske generatorje z močjo nad 20 MW in stroje z magnetnimi ležaji ali stroje z zaporednim navitjem.
OPOMBA: Za stroje, merjene in situ, glej ustrezne dele standardov ISO 20816, ISO 10816 in ISO 7919.

General Information

• Status: Published
• Publication Date: 13-Jan-2019
• ICS: 17.160 - Vibrations, shock and vibration measurements
• ICS: 29.160.01 - Rotating machinery in general
• Technical Committee: ERS - Rotating machinery
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 05-Nov-2018
• Due Date: 10-Jan-2019
• Completion Date: 14-Jan-2019
• 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: EN IEC 60034-14:2018 - Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity

Relations

• Replaces: SIST EN 60034-14:2004 - Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity (IEC 60034-14:2003)
• Effective Date: 30-Oct-2018
• Replaces: SIST EN 60034-14:2004/A1:2007 - Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity (IEC 60034-14:2003/A1:2007)
• Effective Date: 30-Oct-2018

Overview

EN IEC 60034-14:2018 (IEC 60034-14:2018) defines factory acceptance vibration test procedures and vibration limits for rotating electrical machines with shaft heights 56 mm and higher. It applies to DC and three‑phase AC machines (rated output up to 50 MW) operating from 120 min‑1 up to and including 15 000 min‑1, tested uncoupled from any load or prime mover. This edition is available as an RLV (redline) showing changes versus the previous edition.

Key topics and technical requirements

• Scope & exclusions: Covers vibration measurement, evaluation and limits for many rotating machines but excludes in‑situ mounted machines, single‑phase and certain commutator motors, magnetic‑bearing machines, series‑wound machines, some large turbine generators (>20 MW) and vertical hydro generators.
• Measurement quantities: Defines vibration magnitude (displacement/velocity), relative shaft vibration, axial vibration and twice‑line frequency considerations for a.c. machines.
• Measurement equipment & positions: Specifies transducer types, preferred measurement positions on bearing housings and shaft displacement sensing; includes recommended circumferential positions and diagrams (Figures 2–6).
• Machine mounting: Clarifies “free suspension” and introduces an alternative rigid‑mount method for test floors where the original rigid method is impractical.
• Shaft key and run‑out: Improves options for shaft key arrangements and defines limits and measurement methods for shaft vibration (S) and peak‑to‑peak run‑out (p‑p).
• Vibration limits: Sets permissible levels for bearing housing vibration (displacement and velocity), axial vibration and relative shaft vibration. Limits are given in the standard’s tables and illustrated (e.g., Table 1, Table 2, Figure 7).
• Harmonization: Technical alignment with NEMA MG1, IEEE 841 and API 541 to reflect achievable industry practice.

Practical applications - who uses this standard

• Motor/generator manufacturers - to perform factory acceptance vibration tests and certify machines meet vibration severity limits.
• Test and commissioning engineers - to follow standardized measurement procedures and reporting formats.
• Procurement and QA teams - to define contractual vibration acceptance criteria for supplied rotating machinery.
• Maintenance and reliability engineers - to benchmark acceptable vibration levels for new equipment and inform acceptance testing.
• Design engineers - to ensure machines meet end‑of‑line vibration performance targets.

Related standards (selection)

• IEC 60034‑1, IEC 60034‑7 (machine rating and mounting)
• ISO 2954, ISO 10817‑1, ISO 20816‑1, ISO 21940‑32
• Industry references: NEMA MG1, IEEE 841, API 541

EN IEC 60034‑14:2018 is essential when defining, measuring and evaluating vibration severity on factory‑tested rotating electrical machines and helps ensure consistent, internationally harmonized acceptance criteria.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2019
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SIST EN 60034-14:2004
SIST EN 60034-14:2004/A1:2007
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Rotating electrical machines - Part 14: Mechanical vibration of certain machines with
shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration
severity (IEC 60034-14:2018)
Drehende elektrische Maschinen - Teil 14: Mechanische Schwingungen von bestimmten
Maschinen mit einer Achshöhe von 56 mm und höher - Messung, Bewertung und
Grenzwerte der Schwingstärke (IEC 60034-14:2018)
Machines électriques tournantes - Partie 14: Vibrations mécaniques de certaines
machines de hauteur d'axe supérieure ou égale à 56 mm - Mesurage, évaluation et
limites de l'intensité vibratoire (IEC 60034-14:2018)
Ta slovenski standard je istoveten z: EN IEC 60034-14:2018
ICS:
17.160 Vibracije, meritve udarcev in Vibrations, shock and
vibracij vibration measurements
29.160.01 Rotacijski stroji na splošno Rotating machinery in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60034-14

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2018
ICS 29.160.01 Supersedes EN 60034-14:2004
English Version
Rotating electrical machines - Part 14: Mechanical vibration of
certain machines with shaft heights 56 mm and higher -
Measurement, evaluation and limits of vibration severity
(IEC 60034-14:2018)
Machines électriques tournantes - Partie 14: Vibrations Drehende elektrische Maschinen - Teil 14: Mechanische
mécaniques de certaines machines de hauteur d'axe Schwingungen von bestimmten Maschinen mit einer
supérieure ou égale à 56 mm - Mesurage, évaluation et Achshöhe von 56 mm und höher - Messung, Bewertung
limites de l'intensité vibratoire und Grenzwerte der Schwingstärke
(IEC 60034-14:2018) (IEC 60034-14:2018)
This European Standard was approved by CENELEC on 2018-09-21. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60034-14:2018 E

European foreword
The text of document 2/1906/FDIS, future edition 4 of IEC 60034-14, prepared by IEC/TC 2 "Rotating
machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-06-21
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-09-21
document have to be withdrawn
This document supersedes EN 60034-14:2004.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 60034-14:2018 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60034-1 -  Rotating electrical machines - Part 1: Rating and EN 60034-1 -
performance
IEC 60034-7 -  Rotating electrical machines - Part 7: Classification of EN 60034-7 -
types of constructions and mounting arrangements (IM
Code)
ISO 2954 -  Mechanical vibration of rotating and reciprocating - -
machinery; Requirements for instruments for measuring
vibration severity
ISO 10817-1 -  Rotating shaft vibration measuring systems - Part 1: - -
Relative and absolute sensing of radial vibration
ISO 20816-1 -  Mechanical vibration - Measurement and evaluation of - -
machine vibration - Part 1: General guidelines
ISO 21940-32 -  Mechanical vibration - Rotor balancing - Part 32: Shaft - -
and fitment key convention
Under preparation. Stage at the time of publication: FprEN 60034-1:2017.
IEC 60034-14 ®
Edition 4.0 2018-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Rotating electrical machines –

Part 14: Mechanical vibration of certain machines with shaft heights 56 mm

and higher – Measurement, evaluation and limits of vibration severity

Machines électriques tournantes –

Partie 14: Vibrations mécaniques de certaines machines de hauteur d’axe

supérieure ou égale à 56 mm – Mesurage, évaluation et limites de l’intensité

vibratoire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.160.01 ISBN 978-2-8322-5902-3

– 2 – IEC 60034-14:2018 © IEC 2018
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 Measurement quantities . 7
4.1 General . 7
4.2 Vibration magnitude . 7
4.3 Relative shaft vibration . 7
5 Measurement equipment . 7
6 Machine mounting . 8
6.1 General . 8
6.2 Free suspension . 8
6.3 Rigid mounting . 8
6.3.1 Foundation . 8
6.3.2 Horizontal machines . 9
6.3.3 Vertical machines . 9
6.4 Active environment determination . 9
7 Conditions of measurement. 10
7.1 Key . 10
7.2 Measurement positions and directions . 10
7.2.1 Measurement positions for vibration . 10
7.2.2 Measurement positions for relative shaft displacement . 10
7.3 Test conditions . 10
7.4 Vibration transducer . 10
8 Limits of bearing housing vibration . 11
8.1 Limits of vibration magnitude . 11
8.2 Limits of vibration velocity with twice-line frequency for a.c. machines . 12
8.3 Axial vibration . 12
9 Limits of relative shaft vibration . 12
Bibliography . 18

Figure 1 – Minimum elastic displacement as a function of rated speed . 13
Figure 2 – Preferred positions of measurement applicable to one or both ends of the
machine . 14
Figure 3 – Measurement positions for those ends of machines where measurements
according to Figure 2 are not possible without disassembly of parts . 14
Figure 4 – Measurement positions for pedestal bearing . 15
Figure 5 – Preferred circumferential position of transducers for the measurement of
relative shaft displacement . 15
Figure 6 – Measurement positions for vertical machines (measurements to be made at
the bearing housing; when not accessible, then as close as possible) . 16
Figure 7 – Vibration limit diagram for shaft heights H > 132 mm . 17

Table 1 – Limits of maximum vibration magnitude in displacement (r.m.s.) and
velocity (r.m.s.) for shaft height H . 11

IEC 60034-14:2018 © IEC 2018 – 3 –
Table 2 – Limits for the maximum shaft vibration (S ) and the maximum run-out . 13
p-p
– 4 – IEC 60034-14:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ROTATING ELECTRICAL MACHINES –

Part 14: Mechanical vibration of certain machines
with shaft heights 56 mm and higher – Measurement,
evaluation and limits of vibration severity

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60034-14 has been prepared by IEC technical committee 2:
Rotating machinery.
This fourth edition cancels and replaces the third edition, published in 2003, and its
amendment 1, published in 2007. It constitutes a technical revision.
The significant technical changes with respect to the previous edition are:
a) 6.2 is significantly changed to better explain the definition “free suspension”.
b) 6.3: a second method of rigid mount is added since the first method is not always possible
on the test floor.
c) 7.1: an improved option for shaft key is defined.

IEC 60034-14:2018 © IEC 2018 – 5 –
d) Clause 8: considerable effort to harmonize with NEMA MG 1 and IEEE 841 and API 541,
and also establish levels which are achievable and more in line with best practices.
Table 1 is reduced to two shaft-height range sections.
e) 8.2: definition of twice line frequency simplified along with Figure 7 added.
The text of this International Standard is based on the following documents:
FDIS Report on voting
2/1906/FDIS 2/1914/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60034 series, published under the general title Rotating electrical
machines, can be found on the IEC website.
NOTE For A table of cross-references of all IEC TC 2 publications can be found in the IEC TC 2 dashboard on the
IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 60034-14:2018 © IEC 2018
ROTATING ELECTRICAL MACHINES –

Part 14: Mechanical vibration of certain machines
with shaft heights 56 mm and higher – Measurement,
evaluation and limits of vibration severity

1 Scope
This part of IEC 60034 specifies the factory acceptance vibration test procedures and
vibration limits for certain electrical machines under specified conditions, when uncoupled
from any load or prime mover.
It is applicable to DC and three-phase AC machines, with shaft heights 56 mm and higher and
–1
a rated output up to 50 MW, at operational speeds from 120 min up to and including
–1
15 000 min .
This document is not applicable to machines mounted in situ (on site), three-phase
commutator motors, single-phase machines, three-phase machines operated on single-phase
systems, vertical waterpower generators, turbine generators greater than 20 MW and
machines with magnetic bearings or series-wound machines.
NOTE For machines measured in situ, refer to applicable parts of ISO 20816, ISO 10816 and ISO 7919.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements 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.
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance
IEC 60034-7, Rotating electrical machines – Part 7: Classification of types of constructions
and mounting arrangements (IM Code)
ISO 2954, Mechanical vibration of rotating and reciprocating machinery – Requirements for
instruments for measuring vibration severity
ISO 10817-1, Rotating shaft vibration measuring systems – Part 1: Relative and absolute
sensing of radial vibration from rotating shafts
ISO 20816-1, Mechanical vibration – Measurement and evaluation of machine vibration –
Part 1: General guidelines
ISO 21940-32, Mechanical vibration – Rotor balancing – Part 32: Shaft and fitment key
convention
3 Terms and definitions
For the purposes of this docum
...