IEC 60335-2-34:2002

Household and similar electrical appliances - Safety - Part 2-34: Particular requirements for motor-compressors

Deals with the safety of sealed (hermetic and semi-hermetic type) motor-compressors, their protection and control systems, if any, which are intended for use in equipment for household and similar purposes. The rated voltage being not more than 250 V for single-phase and 480 V for other motor-compressors. Some examples of equipment which contain motor-compressors are refrigerators, food freezers, ice makers, air-conditioners, electric heat pumps and dehumidifiers.

General Information

• Status: Published
• Publication Date: 11-Jan-2009
• ICS: 97.040.30 - Domestic refrigerating appliances
• Technical Committee: SC 61C - Safety of refrigeration appliances for household and commercial use
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 23-May-2012

Relations

• Amended By: IEC 60335-2-34:2002/AMD1:2004 - Amendment 1 - Household and similar electrical appliances - Safety - Part 2-34: Particular requirements for motor-compressors
• Effective Date: 05-Sep-2023
• Amended By: IEC 60335-2-34:2002/AMD2:2008 - Amendment 2 - Household and similar electrical appliances - Safety - Part 2-34: Particular requirements for motor-compressors
• Effective Date: 05-Sep-2023
• Revised: IEC 60335-2-34:2012 - Household and similar electrical appliances - Safety - Part 2-34: Particular requirements for motor-compressors
• Effective Date: 05-Sep-2023
• Revises: IEC 60335-2-34:1999 - Safety of household and similar electrical appliances - Part 2-34: Particular requirements for motor-compressors
• Effective Date: 05-Sep-2023

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
60335-2-34
Fourth edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-34:
Particular requirements for motor-compressors
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-34:
Règles particulières pour les motocompresseurs
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
Further information on IEC publications
The technical content of IEC publications is kept under constant review by the IEC,
thus ensuring that the content reflects current technology. Information relating to
this publication, including its validity, is available in the IEC Catalogue of
publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken
by the technical committee which has prepared this publication, as well as the list
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• Customer Service Centre
If you have any questions regarding this publication or need further assistance,
please contact the Customer Service Centre:
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INTERNATIONAL IEC
STANDARD
60335-2-34
Fourth edition
2002-10
Household and similar electrical appliances –
Safety –
Part 2-34:
Particular requirements for motor-compressors
Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-34:
Règles particulières pour les motocompresseurs
 IEC 2002  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail]  Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
U
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 60335-2-34  IEC:2002(E)
CONTENTS
FOREWORD . 4
INTRODUCTION .6
1 Scope . 7
2 Normative references. 8
3 Definitions. 8
4 General requirement . 9
5 General conditions for the tests. 9
6 Classification .10
7 Marking and instructions .11
8 Protection against access to live parts.11
9 Starting of motor-operated appliances .11
10 Power input and current .11
11 Heating .12
12 Void .12
13 Leakage current and electric strength at operating temperature .12
14 Transient overvoltages .12
15 Moisture resistance.12
16 Leakage current and electric strength.12
17 Overload protection of transformers and associated circuits .12
18 Endurance .12
19 Abnormal operation.12
20 Stability and mechanical hazards.16
21 Mechanical strength .16
22 Construction .16
23 Internal wiring .18
24 Components .18
25 Supply connection and external flexible cords.18
26 Terminals for external conductors .18
27 Provision for earthing .18
28 Screws and connections.19
29 Clearances, creepage distances and solid insulation .19
30 Resistance to heat and fire.20
31 Resistance to rusting.20
32 Radiation, toxicity and similar hazards.20
Annexes.22
Annex C (normative) Aging test on motors .22
Annex D (normative) Alternative requirements for protected motor units .22
Annex AA (normative) Running overload tests for motor-compressors classified as
tested with Annex AA.22
Bibliography .26

60335-2-34  IEC:2002(E) – 3 –
Figure 101 – Supply circuit for the locked-rotor test of a single-phase motor-compressor .21
Figure AA.1 – Substitute refrigeration circuit .25
Table 101 – High side test pressures .16
Table 102 – Low side test pressures.17
Table AA.1 – Substitute refrigeration circuit conditions for operating under running
overload conditions .23

– 4 – 60335-2-34  IEC:2002(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-34: Particular requirements for motor-compressors
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by subcommittee 61C:
Household appliances for refrigeration, of IEC technical committee 61: Safety of household and
similar electrical appliances.
This fourth edition cancels and replaces the third edition published in 1999. It constitutes a
technical revision.
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61C/214/FDIS 61C/217/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electrical motor-
compressors.
60335-2-34  IEC:2002(E) – 5 –
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies as
far as is reasonable. When this standard states "addition", "modification" or "replacement", the
relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The committee has decided that the contents of this publication will remain unchanged until
2005. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
The following differences exist in the countries indicated below.
– 7.1: The locked-rotor current marking is required for some motor-compressors (USA).
– 22.7: Different test pressures are used (Japan, USA).
A bilingual version of this publication may be issued at a later date.

– 6 – 60335-2-34  IEC:2002(E)
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered by
another part 2 of IE
...

IEC 60335-2-34
Edition 4.2 2009-01
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-34: Particular requirements for motor-compressors

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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please contact the address below or your local IEC member National Committee for further information.

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IEC 60335-2-34
Edition 4.2 2009-01
INTERNATIONAL
STANDARD
Household and similar electrical appliances – Safety –
Part 2-34: Particular requirements for motor-compressors

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
CM
ICS 97.040.30 ISBN 978-2-88910-153-5
– 2 – 60335-2-34 © IEC:2002+A1:2004
+A2:2008(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.8
2 Normative references.9
3 Definitions.9
4 General requirement .10
5 General conditions for the tests.10
6 Classification.12
7 Marking and instructions .13
8 Protection against access to live parts .13
9 Starting of motor-operated appliances.13
10 Power input and current .13
11 Heating.13
12 Void .13
13 Leakage current and electric strength at operating temperature.13
14 Transient overvoltages.13
15 Moisture resistance.14
16 Leakage current and electric strength .14
17 Overload protection of transformers and associated circuits .14
18 Endurance.14
19 Abnormal operation.14
20 Stability and mechanical hazards .18
21 Mechanical strength.18
22 Construction.19
23 Internal wiring.21
24 Components.21
25 Supply connection and external flexible cords .21
26 Terminals for external conductors .22
27 Provision for earthing.22
28 Screws and connections .22
29 Clearances, creepage distances and solid insulation .22
30 Resistance to heat and fire .23
31 Resistance to rusting .23
32 Radiation, toxicity and similar hazards.23

Annexes.25
Annex C (normative) Aging test on motors .25
Annex D (normative) Alternative requirements for protected motor units .25
Annex AA (normative) Running overload tests for motor-compressors classified
as tested with Annex AA.25

60335-2-34 © IEC:2002+A1:2004 – 3 –
+A2:2008(E)
Bibliography .29

Figure 101 – Supply circuit for the locked-rotor test of a single-phase motor-compressor .24
Figure AA.1 – Substitute refrigeration circuit.28

Table 101 – Minimum high side test pressures .19
Table 102 – Minimum low side test pressures.20
Table AA.1 – Substitute refrigeration circuit conditions for operating under running
overload conditions .26

– 4 – 60335-2-34 © IEC:2002+A1:2004
+A2:2008(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-34: Particular requirements for motor-compressors

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 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.
This part of International Standard IEC 60335 has been prepared by subcommittee 61C:
Household appliances for refrigeration, of IEC technical committee 61: Safety of household and
similar electrical appliances.
This consolidated version of IEC 60335-2-34 consists of the fourth edition (2002) [documents
61C/214/FDIS and 61C/217/RVD], its amendment 1 (2004) [documents 61C/283A/FDIS and
61C/298/RVD] and its amendment 2 (2008) [documents 61C/431/FDIS and 61C/435/RVD].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 4.2.
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
60335-2-34 © IEC:2002+A1:2004 – 5 –
+A2:2008(E)
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electrical motor-
compressors.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies as
far as is reasonable. When this standard states "addition", "modification" or "replacement", the
relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.

NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in smaller roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 7.1: The locked-rotor current marking is required for some motor-compressors (USA).
– 22.7: Different test pressures are used (Japan, USA).
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconf
...