Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements

IEC 60146-1-1:2009 specifies the requirements for the performance of all semiconductor power converters and semiconductor power switches using controllable and/or non-controllable electronic valve devices. It is primarily intended to specify the basic requirements for converters in general and the requirements applicable to line commutated converters for conversion of a.c. power to d.c. power or vice versa. Parts of this standard are also applicable to other types of electronic power converter provided that they do not have their own product standards. This fourth edition constitutes a technical revision and introduces five main changes: - re-edition of the whole standard according to the current directives; - correction of definitions and addition of new terms, especially terms concerning EMC, harmonic distortion and insulation co-ordination; - the service condition tolerances have been revised according to the IEC 61000 series; - the insulation tests have been revised considering the insulation co-ordination; - addition of three annexes.

Halbleiter-Stromrichter - Allgemeine Anforderungen und netzgeführte Stromrichter - Teil 1-1: Festlegung der Grundanforderungen

Convertisseurs à semiconducteurs - Exigences générales et convertisseurs commutés par le réseau - Partie 1-1: Spécification des exigences de base

La CEI 60146-1-1:2009 spécifie les exigences relatives aux caractéristiques de fonctionnement de tous les convertisseurs électroniques de puissance à semiconducteurs, ainsi que des commutateurs électroniques de puissance à semiconducteurs utilisant des valves électroniques, commandables et/ou non commandables. Elle est prévue en premier lieu pour spécifier les exigences de base applicables aux convertisseurs en général, ainsi que les exigences applicables aux convertisseurs à commutation par le réseau, pour la conversion puissance alternative-continue ou vice versa. Certaines parties de la présente norme sont également applicables à d'autres types de convertisseur électronique de puissance sous réserve qu'il n'existe pas de normes de produits qui leur soient propres. Cette quatrième édition constitue une révision technique et introduit cinq modifications principales: - réédition de l'ensemble de la norme conformément au directives en vigueur; - corrections de définitions et ajouts de nouveaux termes, en particulier des termes concernant la CEM, la distorsion harmonique et la coordination de l'isolement; - les tolérances relatives aux conditions de service ont été revues conformément à la série CEI 61000; - les essais d'isolement ont été revus, en tenant compte de la coordination de l'isolement; - ajout de trois annexes.

Polprevodniški pretvorniki - Splošne zahteve in linijsko komutirani pretvorniki - 1-1. del: Specifikacija osnovnih zahtev (IEC 60146-1-1:2009)

Ta mednarodni standard določa zahteve za delovanje vseh polprevodniških električnih pretvornikov in polprevodniških stikal, ki uporabljajo nadzorovane in/ali nenadzorovane elektronke. Elektronke v glavnem zajemajo polprevodniške naprave, ki so lahko nenadzorovane (tj. diode usmernika) ali nadzorovane (tj. tiristorji, elementi triac, izklopni tiristorji in močnostni tranzistorji). Nadzorovane naprave so lahko zaporno neprevodne ali zaporno prevodne in so nadzorovane s tokom, napetostjo ali svetlobo. Za naprave, ki niso v dvojnem stanju, se predpostavlja, da obratujejo v preklopnem načinu.  Ta standard predvsem določa osnovne zahteve za pretvornike na splošno in zahteve, ki veljajo za linijsko komutirane pretvornike za pretvorbo dvosmernega v enosmerni tok in obratno.  Deli tega standarda veljajo tudi za druge vrste elektronskih pretvornikov, pod pogojem, da nimajo svojih proizvodnih standardov. Ta specifična pravila za opremo veljajo za polprevodniške električne pretvornike, ki ali pretvarjajo električno energijo ali uporabljajo komutacijo (na primer polprevodniški samokomutirani pretvorniki) ali vključujejo določene načine uporabe (na primer polprevodniški pretvorniki za motorni pogon na enosmerni tok) ali vključujejo kombinacijo navedenih značilnosti (na primer pretvorniki enosmernega toka za električna  železniška vozila). Ta standard velja za vse električne pretvornike, ki jih ne zajema namenski standard za proizvod ali kadar namenski standard za proizvod ne zajema posebnih lastnosti. Namenski standard za proizvod za električne pretvornike se mora sklicevati na ta mednarodni standard.

General Information

Status
Published
Publication Date
08-Jul-2010
Technical Committee
Drafting Committee
Parallel Committee
Current Stage
6060 - Document made available
Due Date
09-Jul-2010
Completion Date
09-Jul-2010

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SLOVENSKI STANDARD
SIST EN 60146-1-1:2010
01-september-2010
1DGRPHãþD
SIST EN 60146-1-1:2001
SIST EN 60146-1-1:2001/A1:2001

Polprevodniški pretvorniki - Splošne zahteve in linijsko komutirani pretvorniki - 1-

1. del: Specifikacija osnovnih zahtev (IEC 60146-1-1:2009)

Semiconductor converters - General requirements and line commutated converters - Part

1-1: Specification of basic requirements (IEC 60146-1-1:2009)

Halbleiter-Stromrichter - Allgemeine Anforderungen und netzgeführte Stromrichter - Teil

1-1: Festlegung der Grundanforderungen (IEC 60146-1-1:2009)

Convertisseurs à semiconducteurs - Exigences générales et convertisseurs commutés

par le réseau - Partie 1-1: Spécification des exigences de base (CEI 60146-1-1:2009)

Ta slovenski standard je istoveten z: EN 60146-1-1:2010
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
SIST EN 60146-1-1:2010 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 60146-1-1:2010
---------------------- Page: 2 ----------------------
SIST EN 60146-1-1:2010
EUROPEAN STANDARD
EN 60146-1-1
NORME EUROPÉENNE
July 2010
EUROPÄISCHE NORM
ICS 29.200;29.045 Supersedes EN 60146-1-1:1993 + A1:1997
English version
Semiconductor converters -
General requirements and line commutated converters -
Part 1-1: Specification of basic requirements
(IEC 60146-1-1:2009)
Convertisseurs à semiconducteurs - Halbleiter-Stromrichter -
Exigences générales et convertisseurs Allgemeine Anforderungen
commutés par le réseau - und netzgeführte Stromrichter -
Partie 1-1: Spécification des exigences Teil 1-1: Festlegung
de base der Grundanforderungen
(CEI 60146-1-1:2009) (IEC 60146-1-1:2009)

This European Standard was approved by CENELEC on 2010-07-01. 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 Central Secretariat 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 Central Secretariat 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,

Spain, Sweden, Switzerland 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

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60146-1-1:2010 E
---------------------- Page: 3 ----------------------
SIST EN 60146-1-1:2010
EN 60146-1-1:2010 - 2 -
Foreword

The text of document 22/146/FDIS, future edition 4 of IEC 60146-1-1, prepared by IEC TC 22, Power

electronic systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved

by CENELEC as EN 60146-1-1 on 2010-07-01.
This European Standard supersedes EN 60146-1-1:1993 + A1:1997.
This EN 60146-1-1:200X introduces five main changes:
a) re-edition of the whole standard according to the current directives;

b) correction of definitions and addition of new terms, especially terms concerning EMC, harmonic

distortion and insulation co-ordination;

c) the service condition tolerances have been revised according to the EN 61000 series;

d) the insulation tests have been revised considering the insulation co-ordination;

e) addition of three annexes.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent

rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 60146-1-1:2009 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60071-1 NOTE Harmonized as EN 60071-1.
IEC 60071-2 NOTE Harmonized as EN 60071-2.
IEC 60076-1 NOTE Harmonized as EN 60076-1.
IEC 60146-1-3 NOTE Harmonized as EN 60146-1-3.
IEC 60146-2 NOTE Harmonized as EN 60146-2.
IEC 60664-3 NOTE Harmonized as EN 60664-3.
IEC 60664-4 NOTE Harmonized as EN 60664-4.
IEC 60664-5 NOTE Harmonized as EN 60664-5.
IEC 61287-1 NOTE Harmonized as EN 61287-1.
IEC 61378-1 NOTE Harmonized as EN 61378-1.
---------------------- Page: 4 ----------------------
SIST EN 60146-1-1:2010
- 3 - EN 60146-1-1:2010
IEC 61378-2 NOTE Harmonized as EN 61378-2.
IEC 61439-1 NOTE Harmonized as EN 61439-1.
IEC/TR 61800-6 NOTE Harmonized as CLC/TR 61800-6.
IEC 62068-1 NOTE Harmonized as EN 62068-1.
__________
---------------------- Page: 5 ----------------------
SIST EN 60146-1-1:2010
EN 60146-1-1:2010 - 4 -
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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 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 60050-101 1998 International Electrotechnical Vocabulary - -
(IEV) -
Part 101: Mathematics
IEC 60050-551 1998 International Electrotechnical Vocabulary - -
(IEV) -
Part 551: Power electronics
IEC 60050-551-20 2001 International Electrotechnical Vocabulary - - -
Part 551-20: Power electronics - Harmonic
analysis
IEC 60364-1 - Low-voltage electrical installations - HD 60364-1 -
Part 1: Fundamental principles, assessment
of general characteristics, definitions
IEC 60529 - Degrees of protection provided EN 60529 -
by enclosures (IP Code)
IEC 60664-1 2007 Insulation coordination for equipment within EN 60664-1 2007
low-voltage systems -
Part 1: Principles, requirements and tests
IEC 60700-1 - Thyristor valves for high voltage direct EN 60700-1 -
current (HVDC) power transmission -
Part 1: Electrical testing
IEC 61000 Series Electromagnetic compatibility (EMC) EN 61000 Series
IEC 61000-2-2 2002 Electromagnetic compatibility (EMC) - EN 61000-2-2 2002
Part 2-2: Environment - Compatibility levels
for low-frequency conducted disturbances
and signalling in public low-voltage power
supply systems
IEC 61000-2-4 2002 Electromagnetic compatibility (EMC) - EN 61000-2-4 2002
Part 2-4: Environment - Compatibility levels
in industrial plants for low-frequency
conducted disturbances
IEC 61000-3-2 - Electromagnetic compatibility (EMC) - EN 61000-3-2 -
Part 3-2: Limits - Limits for harmonic current
emissions (equipment input current ≤ 16 A per
phase)
---------------------- Page: 6 ----------------------
SIST EN 60146-1-1:2010
- 5 - EN 60146-1-1:2010
Publication Year Title EN/HD Year
IEC 61000-3-3 - Electromagnetic compatibility (EMC) - EN 61000-3-3 -
Part 3-3: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in
public low-voltage supply systems, for
equipment with rated current ≤ 16 A per phase
and not subject to conditional connection
IEC 61000-3-11 - Electromagnetic compatibility (EMC) - EN 61000-3-11 -
Part 3-11: Limits - Limitation of voltage
changes, voltage fluctuations and flicker in
public low-voltage supply systems -
Equipment with rated current ≤ 75 A and
subject to conditional connection
IEC 61000-3-12 2004 Electromagnetic compatibility (EMC) - EN 61000-3-12 2005
Part 3-12: Limits - Limits for harmonic
currents produced by equipment connected to
public low-voltage systems with input current
> 16 A and ≤ 75 A per phase
IEC 61000-4-7 - Electromagnetic compatibility (EMC) - EN 61000-4-7 -
Part 4-7: Testing and measurement
techniques - General guide on harmonics and
interharmonics measurements and
instrumentation, for power supply systems
and equipment connected thereto
IEC 61000-6-1 - Electromagnetic compatibility (EMC) - EN 61000-6-1 -
Part 6-1: Generic standards - Immunity for
residential, commercial and light-industrial
environments
IEC 61000-6-2 - Electromagnetic compatibility (EMC) - EN 61000-6-2 -
Part 6-2: Generic standards - Immunity for
industrial environments
IEC 61000-6-3 - Electromagnetic compatibility (EMC) - EN 61000-6-3 -
Part 6-3: Generic standards - Emission
standard for residential, commercial and light-
industrial environments
IEC 61000-6-4 - Electromagnetic compatibility (EMC) - EN 61000-6-4 -
Part 6-4: Generic standards - Emission
standard for industrial environments
IEC 61140 - Protection against electric shock - Common EN 61140 -
aspects for installation and equipment
IEC 61180-1 1992 High-voltage test techniques for low-voltage EN 61180-1 1994
equipment -
Part 1: Definitions, test and procedure
requirements
IEC 61204-3 - Low-voltage power supplies, d.c. output - EN 61204-3 -
Part 3: Product EMC standard
IEC 61204-7 - Low voltage power supplies, d.c. output - EN 61204-7 -
Part 7: Safety requirements
IEC 61800-3 - Adjustable speed electrical power drive EN 61800-3 -
systems -
Part 3: EMC requirements and specific test
methods
---------------------- Page: 7 ----------------------
SIST EN 60146-1-1:2010
EN 60146-1-1:2010 - 6 -
Publication Year Title EN/HD Year
IEC 61800-5-1 - Adjustable speed electrical power drive EN 61800-5-1 -
systems -
Part 5-1: Safety requirements - Electrical,
thermal and energy
IEC 61954 - Power electronics for electrical transmission EN 61954 -
and distribution systems - Testing of thyristor
valves for static VAR compensators
IEC/PAS 61975 - System tests for high-voltage direct current - -
(HVDC) installations
IEC 62040-1 - Uninterruptible Power Systems (UPS) - EN 62040-1 -
Part 1: General and safety requirements for
UPS
IEC 62040-2 - Uninterruptible power systems (UPS) - EN 62040-2 -
Part 2: Electromagnetic compatibility (EMC)
requirements
IEC 62103 - Electronic equipment for use in power - -
installations
IEC 62310-1 - Static transfer systems (STS) - EN 62310-1 -
Part 1: General and safety requirements
IEC 62310-2 - Static transfer systems (STS) - EN 62310-2 -
Part 2: Electromagnetic compatibility (EMC)
requirements
---------------------- Page: 8 ----------------------
SIST EN 60146-1-1:2010
IEC 60146-1-1
Edition 4.0 2009-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Semiconductor converters – General requirements and line commutated
converters –
Part 1-1: Specification of basic requirements
Convertisseurs à semiconducteurs – Exigences générales et convertisseurs
commutés par le réseau –
Partie 1-1: Spécification des exigences de base
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX
ICS 29.200, 29.045 ISBN 2-8318-1049-5
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 9 ----------------------
SIST EN 60146-1-1:2010
– 2 – 60146-1-1 © IEC:2009
CONTENTS

FOREWORD...........................................................................................................................5

1 Scope and object..............................................................................................................7

2 Normative references .......................................................................................................7

3 Terms and definitions .......................................................................................................9

3.1 Semiconductor devices and combinations .............................................................10

3.2 Arms and connections ...........................................................................................13

3.3 Controllability of converter arms and quadrants of operation (on d.c. side) ............15

3.4 Commutation, quenching and commutation circuitry ..............................................16

3.5 Commutation characteristics .................................................................................18

3.6 Rated values .........................................................................................................20

3.7 Specific voltages, currents and factors ..................................................................22

3.8 Cooling..................................................................................................................25

3.9 Service conditions tolerances and electromagnetic compatibility ...........................26

3.10 Harmonic distortion ...............................................................................................27

3.11 Definitions related to insulation co-ordination ........................................................31

4 Operation of semiconductor power equipment and valve devices....................................34

4.1 Classification.........................................................................................................34

4.1.1 Semiconductor converter ...........................................................................34

4.1.2 Semiconductor valve devices.....................................................................35

4.2 Principal letter symbols and subscripts..................................................................36

4.3 Basic operation of semiconductor converters.........................................................38

4.3.1 Commutation .............................................................................................38

4.3.2 Basic calculation factors for line commutated converters ...........................40

4.3.3 Disturbances and fault conditions ..............................................................42

5 Service conditions ..........................................................................................................43

5.1 Code of identification for cooling method...............................................................43

5.2 Environmental conditions ......................................................................................44

5.2.1 Ambient air circulation ...............................................................................44

5.2.2 Normal service conditions – Temperatures ................................................44

5.2.3 Other normal service conditions ................................................................45

5.2.4 Unusual service conditions ........................................................................45

5.3 Characteristics of the load.....................................................................................46

5.4 Service condition tolerances..................................................................................46

5.4.1 Steady state and short time conditions ......................................................46

5.4.2 Repetitive and non-repetitive transients.....................................................49

6 Power conversion equipment and assemblies.................................................................49

6.1 Electrical connections............................................................................................49

6.2 Calculation factors.................................................................................................50

6.2.1 Essential variables ....................................................................................50

6.2.2 Losses and efficiency ................................................................................53

6.2.3 Power factor ..............................................................................................54

6.2.4 Voltage regulation .....................................................................................54

6.3 Electromagnetic compatibility ................................................................................56

6.3.1 Harmonics .................................................................................................56

6.3.2 Other EMC aspects ...................................................................................57

6.4 Rated values .........................................................................................................57

---------------------- Page: 10 ----------------------
SIST EN 60146-1-1:2010
60146-1-1 © IEC:2009 – 3 –

6.4.1 General .....................................................................................................57

6.4.2 Rated output voltage .................................................................................58

6.4.3 Rated current values .................................................................................58

6.5 Duty classes..........................................................................................................59

6.5.1 Principles ..................................................................................................59

6.5.2 Selection of duty class and rated current value..........................................60

6.5.3 Particular remarks for double converters ...................................................61

6.6 Markings ...............................................................................................................62

6.6.1 General .....................................................................................................62

6.6.2 Rating plate...............................................................................................62

7 Tests for valve device assemblies and power conversion equipment ..............................63

7.1 General .................................................................................................................63

7.1.1 Methods of testing .....................................................................................63

7.1.2 Kinds of tests ............................................................................................63

7.1.3 Performance of tests .................................................................................63

7.2 Insulation tests ......................................................................................................64

7.2.1 General .....................................................................................................64

7.2.2 Insulation routine tests of power conversion equipment .............................65

7.2.3 Additional tests..........................................................................................68

7.3 Functional test.......................................................................................................68

7.3.1 Light load test and functional test ..............................................................68

7.3.2 Rated current test......................................................................................69

7.3.3 Over-current capability test........................................................................69

7.3.4 Measurement of the inherent voltage regulation ........................................69

7.3.5 Measurement of ripple voltage and current ................................................69

7.3.6 Measurement of harmonic currents............................................................69

7.4 Losses, temperature and power factor...................................................................70

7.4.1 Power loss determination for assemblies and equipment ...........................70

7.4.2 Temperature rise test ................................................................................71

7.4.3 Power factor measurements ......................................................................72

7.5 Auxiliaries and control ...........................................................................................72

7.5.1 Checking of auxiliary devices ....................................................................72

7.5.2 Checking the properties of the control equipment ......................................72

7.5.3 Checking the protective devices ................................................................72

7.6 EMC tests .............................................................................................................73

7.7 Measurement of audible noise and additional tests................................................73

7.8 Tolerances ............................................................................................................73

Annex A (normative) Harmonics and interhamonics .............................................................75

Annex B (informative) Electrical environment – Short-circuit ratio ........................................79

Annex C (normative) Protection against electric shock and energy hazards .........................83

Bibliography..........................................................................................................................86

Index of definitions ...............................................................................................................89

---------------------- Page: 11 ----------------------
SIST EN 60146-1-1:2010
– 4 – 60146-1-1 © IEC:2009

Figure 1 – Types of commutation ..........................................................................................39

Figure 2 – Illustration of angles.............................................................................................40

Figure 3 – Voltage regulation ................................................................................................41

Figure 4 – A.C. voltage waveform .........................................................................................49

Figure B.1 – PCC, IPC, installation current ratio and R ......................................................81

Figure B.2 – PCC, IPC, installation current ratio and R .....................................................82

Table 1 – List of major subscripts .........................................................................................36

Table 2 – Symbols ................................................................................................................36

Table 3 – Performance criteria..............................................................................................42

Table 4 – Cooling medium or heat transfer agent..................................................................44

Table 5 – Method of circulation .............................................................................................44

Table 6 – Limit of temperature of the cooling medium for indoor equipment ..........................45

Table 7 – Immunity levels to frequency and voltage amplitude for stiff a.c. voltage

connections ..........................................................................................................................47

Table 8 – Immunity levels to voltage unbalance for stiff a.c. voltage connections..................48

Table 9 – Immunity levels to voltage waveform for stiff a.c. voltage connections ...................48

Table 10 – Connections and calculation factors ....................................................................52

Table 11 – Standard duty classes .........................................................................................60

Table 12 – Examples of load cycles as guidance for selection of duty class..........................61

Table 13 – Summary of tests ................................................................................................64

Table 14 – AC or d.c. test voltages for equipment directly connected to low voltage

mains....................................................................................................................................67

Table 15 – AC or d.c. test voltages for equipment directly connected to high voltage

mains....................................................................................................................................67

Table 16 – Tolerances ..........................................................................................................74

---------------------- Page: 12 ----------------------
SIST EN 60146-1-1:2010
60146-1-1 © IEC:2009 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SEMICONDUCTOR CONVERTERS –
GENERAL REQUIREMENTS AND LINE COMMUTATED CONVERTERS –
Part 1-1: Specification of basic requirements
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,

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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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

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 60146-1-1 has been prepared by IEC technical committee 22:

Power electronic systems and equipment.

This fourth edition cancels and replaces the third edition published in 1991, Corrigendum 1

(1993) and Amendment 1 (1996). This fourth edition constitutes a technical revision.

This fourth edition introduces five main changes:
a) re-edition of the whole standard according to the current directives;

b) correction of definitions and addition of new terms, especially terms concerning EMC,

harmonic distortion and insulation co-ordination;

c) the service condition tolerances have been revised according to the IEC 61000 series;

d) the insulation tests have been revised considering the insulation co-ordination;

e) addition of th
...

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