EN 60034-18-21:2013

SLOVENSKI STANDARD
01-maj-2013
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SIST EN 60034-18-21:1999
SIST EN 60034-18-21:1999/A1:1999
SIST EN 60034-18-21:1999/A2:1999
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Rotating electrical machines - Part 18-21: Functional evaluation of insulation systems -
Test procedures for wire-wound windings - Thermal evaluation and classification (IEC
60034-18-21:2012)
Drehende elektrische Maschinen - Teil 18-21: Funktionelle Bewertung von
Isoliersystemen - Prüfverfahren für Runddrahtwicklungen - Thermische Bewertung und
Klassifizierung (IEC 60034-18-21:2012)
Machines électriques tournantes - Partie 18-21: Evaluation fonctionnelle des systèmes
d'isolation - Procédures d'essai pour enroulements à fils - Evaluation thermique et
classification (CEI 60034-18-21:2012)
Ta slovenski standard je istoveten z: EN 60034-18-21:2013
ICS:
29.080.30 Izolacijski sistemi Insulation systems
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 60034-18-21
NORME EUROPÉENNE
March 2013
EUROPÄISCHE NORM
ICS 29.160 Supersedes EN 60034-18-21:1994 + A1:1996 + A2:1996

English version
Rotating electrical machines -
Part 18-21: Functional evaluation of insulation systems -
Test procedures for wire-wound windings -
Thermal evaluation and classification
(IEC 60034-18-21:2012)
Machines électriques tournantes -  Drehende elektrische Maschinen -
Partie 18-21: Evaluation fonctionnelle Teil 18-21: Funktionelle Bewertung
des systèmes d'isolation - von Isoliersystemen -
Procédures d'essai pour enroulements Prüfverfahren für Runddrahtwicklungen -
à fils - Evaluation thermique Thermische Bewertung und
et classification Klassifizierung
(CEI 60034-18-21:2012) (IEC 60034-18-21:2012)

This European Standard was approved by CENELEC on 2012-10-24. 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60034-18-21:2013 E

Foreword
The text of document 2/1672/FDIS, future edition 2 of IEC 60034-18-21, prepared by IEC/TC 2
"Rotating machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN 60034-18-21:2013.
The following dates are fixed:
(dop) 2013-09-29
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-10-24
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60034-18-21:1994 + A1:1996 + A2:1996.

EN 60034-18-21:1994 + A1:1996 + A2:1996:
The main technical changes with regard to the previous edition can be seen in the introduction of
some basic statistical methods in the evaluation of comparative data. Moreover, the standard states a
simpler use of different test procedures.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60034-18-21:2012 was approved by CENELEC as a
European Standard without any modification.

- 3 - EN 60034-18-21:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60034-1 - Rotating electrical machines - EN 60034-1 -
Part 1: Rating and performance

IEC 60034-18-1 2010 Rotating electrical machines - EN 60034-18-1 2010
Part 18-1: Functional evaluation of insulation
systems - General guidelines
IEC 60085 - Electrical insulation - Thermal evaluation EN 60085 -
and designation
IEC 60216-1 - Electrical insulating materials - Properties EN 60216-1 -
of thermal endurance -
Part 1: Ageing procedures and evaluation
of test results
IEC 60216-5 - Electrical insulating materials - Thermal EN 60216-5 -
endurance properties -
Part 5: Determination of relative thermal
endurance index (RTE) of an insulating
material
IEC 60455 Series Resin based reactive compounds used EN 60455 Series
for electrical insulation
IEC 60464 Series Varnishes used for electrical insulation EN 60464 Series

IEC 60505 - Evaluation and qualification of electrical EN 60505 -
insulation systems
IEC 60034-18-21 ®
Edition 2.0 2012-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Rotating electrical machines –

Part 18-21: Functional evaluation of insulation systems – Test procedures for

wire-wound windings – Thermal evaluation and classification

Machines électriques tournantes –

Partie 18-21: Evaluation fonctionnelle des systèmes d'isolation – Procédures

d'essai pour enroulements à fils – Evaluation thermique et classification

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX X
ICS 29.160 ISBN 978-2-83220-337-8

– 2 – 60034-18-21 © IEC:2012
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 General considerations . 9
3.1 Reference insulation system . 9
3.2 Test procedures . 10
4 Test objects and test specimens . 10
4.1 Construction of test objects . 10
4.2 Verification of effects of minor changes in insulation systems . 11
4.3 Number of test specimens . 11
4.4 Quality control . 11
4.5 Initial diagnostic tests . 11
5 Test procedures . 12
5.1 General principles of diagnostic tests . 12
5.2 Ageing temperatures and sub-cycle lengths . 12
5.3 Methods of heating . 13
5.4 Thermal ageing sub-cycle . 14
6 Diagnostic sub-cycle. 14
6.1 Conditioning sequence . 14
6.2 Mechanical conditioning . 14
6.3 Moisture conditioning . 15
6.4 Voltage tests . 15
6.5 Other diagnostic tests . 15
7 Reporting and functional evaluation of data from candidate and reference systems . 16
7.1 General . 16
7.2 Determining qualification . 16
7.2.1 Overview . 16
7.2.2 Case A: Qualification for the same class temperature and same
expected service life . 17
7.2.3 Case B: Qualification for the same class temperature and a different
expected service life . 17
7.2.4 Case C: Qualification for a different class temperature and same
expected service life . 18
7.2.5 Case D: Qualification for a different class temperature and different
expected service life . 19
7.2.6 Non-linearity of regression lines . 20
7.2.7 Reduced evaluation . 20
8 Procedure 1: Motorette test procedure . 21
8.1 General . 21
8.1.1 Test object definition . 21
8.1.2 Test procedure . 21
8.2 Test objects . 21
8.2.1 Construction of test objects . 21
8.2.2 Number of test objects . 21
8.2.3 Quality assurance tests . 21

60034-18-21 © IEC:2012 – 3 –
8.2.4 Initial diagnostic tests . 22
8.3 Thermal ageing sub-cycle . 22
8.3.1 Ageing temperatures and sub-cycle lengths . 22
8.3.2 Means of heating . 22
8.3.3 Ageing procedure . 22
8.4 Diagnostic sub-cycle . 22
8.4.1 General . 22
8.4.2 Mechanical conditioning . 22
8.4.3 Moisture conditioning . 22
8.4.4 Voltage test . 22
8.4.5 Other diagnosti
...