IEC 60884-2-7:2011

Plugs and socket-outlets for household and similar purposes - Part 2-7: Particular requirements for cord extension sets

IEC 60884-2-7:2011 applies to cord extension sets, rewirable and non rewirable, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 16 A, intended for household and similar purposes, either indoors or outdoors.
This publication is to be read in conjunction with IEC 60884-1:2002.

Prises de courant pour usages domestiques et analogues - Partie 2-7: Exigences particulières pour les cordons prolongateurs

La CEI 60884-2-7:2011 s'applique aux cordons prolongateurs, démontables et non démontables, avec ou sans contact de terre, de tension assignée supérieure à 50 V mais ne dépassant pas 440 V et de courant assigné ne dépassant pas 16 A, destinés aux usages domestiques et analogues soit à l'intérieur soit à l'extérieur.
Cette publication doit être lue conjointement avec la CEI 60884-1:2002.

Vtiči in vtičnice za gospodinjstva in podobne namene - 2-7. del: Posebne zahteve za podaljške za kable

General Information

• Status: Published
• Publication Date: 22-Feb-2011
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.30 - Plugs, socket-outlets, couplers
• Technical Committee: SC 23B - Plugs, socket-outlets and switches
• Drafting Committee: MT 4 - TC 23/SC 23B/MT 4
• Current Stage: PPUB - Publication issued
• Start Date: 28-Feb-2011
• Completion Date: 23-Feb-2011
• Ref Project: SIST IEC 60884-2-7:2011 - Plugs and socket-outlets for household and similar purposes - Part 2-7: Particular requirements for cord extension sets

Relations

• Amended By: IEC 60884-2-7:2011/AMD1:2013 - Amendment 1 - Plugs and socket-outlets for household and similar purposes - Part 2-7: Particular requirements for cord extension sets
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60884-2-7 ®
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plugs and socket-outlets for household and similar purposes –
Part 2-7: Particular requirements for cord extension sets

Prises de courant pour usages domestiques et analogues –
Partie 2-7: Exigences particulières pour les cordons prolongateurs

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 either IEC or
IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de la CEI ou du Comité national de la CEI du pays du demandeur.
Si vous avez des questions sur le copyright de la CEI ou si vous désirez obtenir des droits supplémentaires sur cette
publication, utilisez les coordonnées ci-après ou contactez le Comité national de la CEI de votre pays de résidence.

IEC Central Office
3, rue de Varembé
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Switzerland
Email: [e-mail]
Web: www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
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IEC 60884-2-7 ®
Edition 1.0 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plugs and socket-outlets for household and similar purposes –
Part 2-7: Particular requirements for cord extension sets

Prises de courant pour usages domestiques et analogues –
Partie 2-7: Exigences particulières pour les cordons prolongateurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 29.120.30 ISBN 978-2-88912-362-9

– 2 – 60884-2-7  IEC:2011
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Definitions . 5
4 General requirements . 6
5 General remarks on tests . 6
6 Ratings . 7
7 Classification . 7
8 Marking . 7
9 Checking of dimensions . 8
10 Protection against electric shock. 8
11 Provision for earthing . 8
12 Terminals and terminations . 8
13 Construction of fixed socket-outlets . 8
14 Construction of plugs and portable socket-outlets . 9
15 Interlocked socket-outlets . 10
16 Resistance to ageing, protection provided by the enclosures and resistance to
humidity . 10
17 Insulation resistance and electric strength . 10
18 Operation of earthing contacts . 10
19 Temperature rise . 11
20 Breaking capacity . 11
21 Normal operation . 11
22 Force necessary to withdraw the plug . 11
23 Flexible cables and their connection . 11
24 Mechanical strength . 11
25 Resistance to heat . 11
26 Screws, current-carrying parts and connections . 11
27 Creepage distances, clearances and distances through sealing compound . 11
28 Resistance of insulating material to abnormal heat, to fire and to tracking . 11
29 Resistance to rusting . 11
30 Additional tests on pins provided with insulating sleeves . 11
101 EMC requirements . 12
Annex A (normative) Safety-related routine tests for factory-wired portable
accessories (protection against electric shock and correct polarity) . 13

Table 101 – Type, length of the flexible cable and nominal cross-sectional area of the
conductors of cord extension sets . 9

60884-2-7  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLUGS AND SOCKET-OUTLETS FOR HOUSEHOLD
AND SIMILAR PURPOSES –
Part 2-7: Particular requirements for cord extension sets

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 60884-2-7 has been prepared by subcommittee 23B: Plugs, socket-
outlets and switches, of IEC technical committee 23: Electrical accessories.
The text of this standard is based on the following documents:
FDIS Report on voting
23B/977/FDIS 23B/987/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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-7 shall be used in conjunction with IEC 60884-1. It was established on the basis of
the third edition of IEC 60884-1 (2002) and of its Amendment 1 (2006).

– 4 – 60884-2-7  IEC:2011
This Part 2-7 supplements or modifies the corresponding clauses in IEC 60884-1, so as to
convert that publication into the IEC Standard: Particular requirements for cord extension
sets.
Where this Part 2-7 states "addition“, "modification“ or "replacement“, the relevant
requirement, test specifications or explanatory matter in Part 1 shall be adapted accordingly.
Subclauses, figures, tables or notes which are additional to those in Part 1 are numbered
starting from 101.
A list of all the parts in the IEC 60884 series, under the general title Plugs and socket-outl
...

IEC 60884-2-7 ®
Edition 1.1 2013-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Plugs and socket-outlets for household and similar purposes –
Part 2-7: Particular requirements for cord extension sets

Prises de courant pour usages domestiques et analogues –
Partie 2-7: Exigences particulières pour les cordons prolongateurs

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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 15 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
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details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 15
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
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La recherche avancée permet de trouver des publications IEC
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en utilisant différents critères (numéro de référence, texte,
et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les
publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées.
antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
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Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 60884-2-7 ®
Edition 1.1 2013-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Plugs and socket-outlets for houehold and similar purposes –

Part 2-7: Particular requirements for cord extension sets

Prises de courant pour usages domestiques et analogues –

Partie 2-7: Exigences particulières pour les cordons prolongateurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.30 ISBN 978-2-8322-0902-8

– 2 – 60884-2-7  IEC:2011+A1:2013
CONTENTS
FOREWORD . 3

1 Scope . 5
2 Normative references. 5
3 Definitions . 5
4 General requirements . 6
5 General remarks on tests . 6
6 Ratings . 7
7 Classification . 7
8 Marking . 7
9 Checking of dimensions . 8
10 Protection against electric shock. 8
11 Provision for earthing . 9
12 Terminals and terminations . 9
13 Construction of fixed socket-outlets . 9
14 Construction of plugs and portable socket-outlets . 9
15 Interlocked socket-outlets . 11
16 Resistance to ageing, protection provided by the enclosures and resistance to
humidity . 11
17 Insulation resistance and electric strength . 11
18 Operation of earthing contacts . 11
19 Temperature rise . 11
20 Breaking capacity . 11
21 Normal operation . 11
22 Force necessary to withdraw the plug . 11
23 Flexible cables and their connection . 11
24 Mechanical strength . 12
25 Resistance to heat . 12
26 Screws, current-carrying parts and connections . 12
27 Creepage distances, clearances and distances through sealing compound . 12
28 Resistance of insulating material to abnormal heat, to fire and to tracking . 12
29 Resistance to rusting . 12
30 Additional tests on pins provided with insulating sleeves . 12
101 EMC requirements . 12

Annex A (normative) Safety-related routine tests for factory-wired portable
accessories (protection against electric shock and correct polarity) . 13

Table 101 – Type, length of the flexible cable and nominal cross-sectional area of the
conductors of cord extension sets . 10

60884-2-7  IEC:2011+A1:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLUGS AND SOCKET-OUTLETS FOR HOUSEHOLD
AND SIMILAR PURPOSES –
Part 2-7: Particular requirements for cord extension sets
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.
This consolidated version of the official IEC Standar
...