IEC 60320-2-4:2005
(Main)Appliance couplers for household and similar general purposes - Part 2-4: Couplers dependent on appliance weight for engagement
Appliance couplers for household and similar general purposes - Part 2-4: Couplers dependent on appliance weight for engagement
This standard is applicable to two-pole appliance couplers for a.c. only, with or without earthing contact, with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A, for household and similar general purposes and intended for incorporation or integration within electric appliances or other electric equipment of multi part construction for 50 Hz or 60 Hz supply which depend on the weight of the appliance to ensure correct engagement.
Connecteurs pour usages domestiques et usages généraux analogues - Partie 2-4: Connecteurs à connexion par gravité
La présente partie de la CEI 60320 est applicable aux connecteurs bipolaires pour courant alternatif seulement, avec ou sans contact de terre, de tension assignée ne dépassant pas 250 V et de courant assigné ne dépassant pas 16 A, pour usages domestiques et généraux analogues, destinés à l'incorporation ou à l'intégration à l'intérieur d'appareils électriques d'utilisation ou d'autres matériels électriques réalisés par assemblage et alimentés à 50 Hz ou 60 Hz et qui dépendent du poids de l'appareil d'utilisation pour assurer un engagement correct.
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Standards Content (Sample)
NORME CEI
INTERNATIONALE
IEC
60320-2-4
INTERNATIONAL
Première édition
STANDARD
First edition
2005-10
Connecteurs pour usages domestiques
et usages généraux analogues –
Partie 2-4:
Connecteurs à connexion par gravité
Appliance couplers for household
and similar general purposes –
Part 2-4:
Couplers dependent on appliance weight
for engagement
Numéro de référence
Reference number
CEI/IEC 60320-2-4:2005
Numérotation des publications Publication numbering
Depuis le 1er janvier 1997, les publications de la CEI As from 1 January 1997 all IEC publications are
sont numérotées à partir de 60000. Ainsi, la CEI 34-1 issued with a designation in the 60000 series. For
devient la CEI 60034-1. example, IEC 34-1 is now referred to as IEC 60034-1.
Editions consolidées Consolidated editions
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base incorporant l’amendement 1, et la publication de the base publication incorporating amendments 1
base incorporant les amendements 1 et 2. and 2.
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NORME CEI
INTERNATIONALE
IEC
60320-2-4
INTERNATIONAL
Première édition
STANDARD
First edition
2005-10
Connecteurs pour usages domestiques
et usages généraux analogues –
Partie 2-4:
Connecteurs à connexion par gravité
Appliance couplers for household
and similar general purposes –
Part 2-4:
Couplers dependent on appliance weight
for engagement
IEC 2005 Droits de reproduction réservés Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
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PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
– 2 – 60320-2-4 CEI:2005
SOMMAIRE
AVANT-PROPOS .4
1 Domaine d’application.8
2 Références normatives .8
3 Définitions .10
4 Prescriptions générales .12
5 Généralités sur les essais.12
6 Valeurs assignées .14
7 Classification .14
8 Marques et indications .16
9 Dimensions et compatibilité .18
10 Protection contre les chocs électriques .20
11 Dispositions en vue de la mise à la terre .20
12 Bornes et sorties.20
13 Construction .20
14 Résistance à l'humidité .22
15 Résistance d'isolement et rigidité diélectrique .24
16 Forces nécessaires pour engager et pour retirer la prise mobile .26
17 Fonctionnement des contacts.28
18 Résistance à l'échauffement des connecteurs pour conditions chaudes ou très chaudes .28
19 Pouvoir de coupure.28
20 Fonctionnement normal .30
21 Echauffement .32
22 Câbles souples et leur raccordement .34
23 Résistance mécanique.34
24 Résistance à la chaleur et au vieillissement .36
25 Vis, pièces transportant le courant et connexions .36
26 Lignes de fuite, distances dans l'air et distances à travers la matière isolante.38
27 Résistance de la matière isolante à la chaleur, au feu et aux courants de cheminement .46
28 Protection contre la rouille .48
29 Prescriptions sur la compatibilité électromagnétique (CEM).48
Annexe AA (normative) Essai de tenue au cheminement .52
Annexe BB (normative) Essai au brûleur-aiguille.54
Figure 101 – Exemples de distances d'isolement.50
Tableau 101 – Tensions d'essai .26
Tableau 102 – Tension assignée de tenue aux chocs .38
Tableau 103 – Distances d'isolement minimales .40
Tableau 104 – Lignes de fuite minimales pour l'isolation principale .44
60320-2-4 IEC:2005 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9
2 Normative references.9
3 Definitions .11
4 General requirements .13
5 General notes on tests.13
6 Standard ratings .15
7 Classification .15
8 Marking .17
9 Dimensions and compatibility.19
10 Protection against electric shock.21
11 Provision for earthing.21
12 Terminals and terminations.21
13 Construction .21
14 Moisture resistance.23
15 Insulation resistance and electric strength.25
16 Forces necessary to insert and withdraw the connector .27
17 Operation of contacts.29
18 Resistance to heating of appliance couplers for hot conditions or very hot conditions.29
19 Breaking capacity .29
20 Normal operation .31
21 Temperature rise .33
22 Cords and their connection .35
23 Mechanical strength.35
24 Resistance to heat and ageing .37
25 Screws, current-carrying parts and connections .37
26 Creepage distances, clearances and distances through insulation .39
27 Resistance of insulating material to heat, fire and tracking .47
28 Resistance to rusting .49
29 Electromagnetic compatibility (EMC) requirements .49
Annex AA (normative) Proof tracking test .53
Annex BB (normative) Needle flame test .55
Figure 101 – Examples of clearances .51
Table 101 – Test voltages .27
Table 102 – Rated impulse voltage.39
Table 103 – Minimum clearances .41
Table 104 – Minimum creepage distances for basic insulation .45
– 4 – 60320-2-4 CEI:2005
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
CONNECTEURS POUR USAGES DOMESTIQUES
ET USAGES GÉNÉRAUX ANALOGUES –
Partie 2-4: Connecteurs à connexion par gravité
AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation composée
de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI a pour objet de
favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines de
l'électricité et de l'électronique. A cet effet, la CEI – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de la CEI"). Leur élaboration est confiée à des comités d'études,
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conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de la CEI concernant les questions techniques représentent, dans la mesure
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responsabilité pour les équipements déclarés conformes à une de ses Publications.
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toute autre Publication de la CEI, ou au crédit qui lui est accordé.
8) L'attention est attirée sur les références normatives citées dans cette publication. L'utilisation de publications
référencées est obligatoire pour une application correcte de la présente publication.
9) L’attention est attirée sur le fait que certains des éléments de la présente Publication de la CEI peuvent faire
l’objet de droits de propriété intellectuelle ou de droits analogues. La CEI ne saurait être tenue pour
responsable de ne pas avoir identifié de tels droits de propriété et de ne pas avoir signalé leur existence.
La Norme internationale CEI 60320-2-4 a été établie par le sous-comité 23G: Connecteurs, du
comité d'études 23 de la CEI: Petit appareillage
Le texte de la présente norme est issu des documents suivants:
FDIS Rapport de vote
23G/251/FDIS 23G/252/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cette norme.
Cette publication a été rédigée selon les Directives ISO/CEI, Partie 2.
60320-2-4 IEC:2005 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-4: Couplers dependent on appliance weight
for engagement
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.
International Standard IEC 60320-2-4 has been prepared by subcommittee 23G: Appliance
couplers, of IEC technical committee 23: Electrical accessories
The text of this standard is based on the following documents:
FDIS Report on voting
23G/251/FDIS 23G/252/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.
– 6 – 60320-2-4 CEI:2005
La CEI 60320 comprend les parties suivantes, présentées sous le titre général Connecteurs
pour usages domestiques et usages généraux analogues:
Partie 1: Prescriptions générales
Partie 2-1: Connecteurs pour machines à coudre
Partie 2-2: Connecteurs d’interconnexion pour matériels électriques domestiques et analogues
Partie 2-3: Connecteurs avec degré de protection supérieur à IPX0
Partie 2-4: Connecteurs à connexion par gravité
La présente Partie 2 doit être utilisée conjointement avec la CEI 60320-1: Connecteurs pour
usages domestiques et usages généraux analogues – Partie 1: Prescriptions générales. Elle a
été établie sur la base de la seconde édition de cette norme (2001).
Les articles de la présente norme complètent ou modifient les articles respectifs de la
CEI 60320-1. Lorsqu'un paragraphe particulier de la Partie 1 n'est pas mentionné dans la
présente Partie 2, le paragraphe de la CEI 60320-1 s'applique pour autant que cela soit
raisonnable. Lorsque la présente norme spécifie "addition", "modification" ou "remplacement",
il convient d'adapter en conséquence l'exigence, la modalité d'essai ou le commentaire
correspondant de la CEI 60320-1.
Les paragraphes, figures ou tableaux complémentaires à ceux de la Partie 1 sont numérotés à
partir de 101. Les annexes complémentaires sont dénommées AA, BB, etc.
Le comité a décidé que le contenu de cette publication ne sera pas modifié avant la date de
maintenance indiquée sur le site web de la CEI sous «http://webstore.iec.ch» dans les données
relatives à la publication recherchée. A cette date, la publication sera
• reconduite;
• supprimée;
• remplacée par une édition révisée, ou
• amendée.
.
60320-2-4 IEC:2005 – 7 –
IEC 60320 consists of the following parts, under the general title Appliance couplers for
household and similar general purposes:
Part 1: General requirements
Part 2-1: Sewing machine couplers
Part 2-2: Interconnection couplers for household and similar equipment
Part 2-3: Appliance couplers with a degree of protection higher than IPX0
Part 2-4: Couplers dependent on appliance weight for engagement
This part 2 is to be used in conjunction with IEC 60320-1:Appliance couplers for household and
similar general purposes – Part 1: General requirements. It was established on the basis of the
second edition of that standard (2001).
The clauses of this standard supplement or modify the corresponding clauses of IEC 60320-1.
When a particular subclause of Part 1 is not mentioned in this part 2, the subclause of
IEC 60320-1 applies without modification as far as is reasonable. Where this standard states
“addition”, “modification” or “replacement”, the relevant requirement, test specification or
explanatory matter in IEC 60320-1 should be adapted accordingly.
Subclauses, figures or tables which are additional to those in Part 1 are numbered starting
from 101. Additional annexes are lettered AA, BB etc.
The committee has decided that the contents of this publication 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
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 8 – 60320-2-4 CEI:2005
CONNECTEURS POUR USAGES DOMESTIQUES
ET USAGES GÉNÉRAUX ANALOGUES –
Partie 2-4: Connecteurs à connexion par gravité
1 Domaine d’application
L'article de la CEI 60320-1 est remplacé comme suit:
La présente partie de la CEI 60320 est applicable aux connecteurs bipolaires pour courant
alternatif seulement, avec ou sans contact de terre, de tension assignée ne dépassant pas
250 V et de courant assigné ne dépassant pas 16 A, pour usages domestiques et généraux
analogues, destinés à l'incorporation ou à l'intégration à l'intérieur d'appareils électriques
d'utilisation ou d'autres matériels électriques réalisés par assemblage et alimentés à 50 Hz ou
60 Hz et qui dépendent du poids de l'appareil d'utilisation pour assurer un engagement correct.
NOTE 1 Les connecteurs conformes à la présente norme sont adaptés à une utilisation dans des appareils utilisés
sous une température ambiante ne dépassant pas normalement 25 °C mais pouvant atteindre occasionnellement
35 °C. Toutefois, la température ambiante entourant le connecteur peut dépasser ces valeurs auquel cas il faut
qu'elle soit déclarée par le fabricant. Il est possible que les températures ambiantes de service maximales pour le
socle de connecteur et pour la prise mobile soient différentes.
NOTE 2 Les connecteurs à connexion par gravité peuvent être soumis à des débordements de liquide en usage
normal. Ils sont classés selon l'existence d'une protection contre les débordements d'eau lorsqu'ils sont installés
conformément aux instructions d'installation du fabricant.
NOTE 3 Si les socles de connecteurs conformes à la présente norme sont utilisés dans des appareils d'utilisation
ou d'autres matériels pouvant être soumis à des débordements de liquide affectant le socle de connecteur lorsque
la partie en fonction de l'appareil d'utilisation ou du matériel est en place sur son socle alimenté, il faut alors qu'une
protection contre l'humidité soit fournie par le matériel.
NOTE 4 Les références aux feuilles de normes de la CEI 60320-1 ne s'appliquent pas aux connecteurs dépendant
du poids de l'appareil d'utilisation pour l'engagement.
NOTE 5 Des constructions spéciales peuvent être exigées pour:
– des emplacements présentant des conditions particulières, par exemple à bord des navires, dans des véhicules,
etc.;
– des emplacements à atmosphère dangereuse, présentant par exemple des dangers d'explosion.
2 Références normatives
Le présent article de la CEI 60320-1 s'applique avec les additions suivantes:
CEI 60320-1:2001, Connecteurs pour usages domestiques et usages généraux analogues –
Prescriptions générales
CEI 60320-2-2, Connecteurs pour usages domestiques et usages généraux analogues – Partie
2-2: Connecteurs d'interconnexion pour matériels électriques domestiques et analogues
CEI 60320-2-3, Connecteurs pour usages domestiques et usages généraux analogues – Partie
2-3: Connecteurs avec degré de protection supérieur à IPX0
CEI 60335-1:2001, Appareils électrodomestiques et analogues – Sécurité – Partie 1: Prescrip-
tions générales
60320-2-4 IEC:2005 – 9 –
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-4: Couplers dependent on appliance weight
for engagement
1 Scope
This clause of IEC 60320-1 is replaced as follows:
This standard is applicable to two-pole appliance couplers for a.c. only, with or without earthing
contact, with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A, for
household and similar general purposes and intended for incorporation or integration within
electric appliances or other electric equipment of multi-part construction for 50 Hz or 60 Hz
supply which depend on the weight of the appliance to ensure correct engagement.
NOTE 1 Appliance couplers complying with this standard are suitable for use in appliances which are used in an
ambient temperature not normally exceeding 25 °C but occasionally reaching 35 °C. However the ambient
temperature surrounding the appliance coupler may exceed these figures and is to be declared by the
manufacturer. It is possible that the maximum working ambient temperature for the appliance inlet and for the
connector may be different.
NOTE 2 Appliance couplers dependent on appliance weight for engagement may be subject to spillage of liquid in
normal use. They are classified according to whether protection against water spillage is provided, when installed in
accordance with the manufacturer’s installation instructions.
NOTE 3 If appliance inlets according to this standard are used with appliances or other equipment which may be
subject to spillage of liquid affecting the appliance inlet when the functioning part of the appliance or equipment is
seated on its power base, then protection against moisture is to be provided by the equipment.
NOTE 4 References to standard sheets within IEC 60320-1 do not apply to appliance couplers dependent on
appliance weight for engagement.
NOTE 5 Special constructions may be required:
– in locations where special conditions may prevail, for example, in ships, vehicles and the like;
– in hazardous locations, for example, where explosions are likely to occur.
2 Normative references
This clause of IEC 60320-1 applies with the following additions:
IEC 60320-1:2001, Appliance couplers for household and similar general purposes – General
requirements
IEC 60320-2-2, Appliance couplers for household and similar general purposes – Part 2-2:
Interconnection couplers for household and similar equipment
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
IEC 60335-1:2001, Household and similar electrical appliances – Safety – Part 1: General
requirements
– 10 – 60320-2-4 CEI:2005
CEI 60664-1:1992, Coordination de l'isolement des matériels dans les systèmes (réseaux) à
1)
basse tension
Amendement 1 (2000)
CEI 60695-11-5, Essais relatifs aux risques du feu – Partie 11-5: Flammes d'essai – Méthode
d'essai au brûleur-aiguille – Appareillage, dispositif d'essai de vérification et lignes directrices
CEI 60695-11-10, Essais relatifs aux risques du feu – Partie 11-10: Flammes d'essai, –
Méthodes d'essai horizontale et verticale à la flamme de 50 W
CEI 61032, Protection des personnes et des matériels par les enveloppes – Calibres d'essai
pour la vérification
ISO 9772, Plastiques alvéolaires – Détermination des caractéristiques de combustion de
petites éprouvettes en position horizontale, soumises à une petite flamme
3 Définitions
Le présent article de la CEI 60320-1 s'applique avec les additions suivantes:
3.101
connecteur connecté par gravité
coupleur dépendant du poids de la partie en fonctionnement de l'appareil d'utilisation dans
lequel il est incorporé ou intégré afin d'assurer un engagement correct
NOTE Le connecteur connecté par gravité est utilisé dans un appareil d'utilisation constitué de deux parties, afin
d'alimenter la partie qui réalise la fonction de l'appareil d'utilisation (la partie en fonctionnement) à partir du socle
d'alimentation qui est raccordé à l'alimentation.
3.102
prise mobile connectée par gravité
partie constituante d'un coupleur connecté par gravité qui porte les liaisons d'alimentation, et
s'engage dans le socle de connecteur correspondant
3.103
socle de connecteur connecté par gravité
partie constituante d'un coupleur connecté par gravité destiné à être intégré ou incorporé dans
la partie en fonctionnement de l'appareil d'utilisation
3.104
prise mobile connectée par gravité démontable
prise mobile connectée par gravité construite de façon telle que le câble d'alimentation puisse
être remplacé
NOTE 1 La méthode de fixation du câble d'alimentation, lorsqu'il est installé conformément aux instructions
d'installation du fabricant, est classée selon les exigences de fixation du type X ou du type Y des normes
d'appareils d'utilisation.
NOTE 2 Les exigences concernant les méthodes de fixation du type X ou du type Y sont données dans la
CEI 60335-1.
3.105
fixation du type X
méthode de fixation du câble d'alimentation telle qu'il puisse être facilement être remplacé
NOTE Le câble d'alimentation peut être spécialement préparé, et disponible seulement auprès du fabricant ou de
son service après vente. Un câble spécialement préparé peut comporter une partie de l'appareil.
___________
1)
Une édition consolidée (1.2) existe, qui contient l’édition 1 (1992) et ses Amendements 1 (2000) et 2 (2002).
60320-2-4 IEC:2005 – 11 –
1)
IEC 60664-1:1992, Insulation coordination for equipment within low voltage systems
Amendment 1 (2000)
IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-10, Fire hazard testing, – Part 11-10: Test flames, – 50 W horizontal and vertical
flame test methods
IEC 61032, Protection of persons and equipment by enclosures – Probes for verification
ISO 9772, Cellular plastics – Determination of horizontal burning characteristics of small
specimens subjected to a small flame
3 Definitions
This clause of IEC 60320-1 applies with the following additions:
3.101
weight-engaged coupler
coupler that relies on the weight of the functioning part of the appliance, in which it is
incorporated or integrated, to ensure correct engagement
NOTE The weight-engaged coupler is used in an appliance which is in two parts, for supplying the part that
performs the function of the appliance (the functioning part) from the power base which is connected to the power
supply.
3.102
weight-engaged connector
component part of the weight-engaged coupler which carries the power connections, and
engages with the corresponding appliance inlet.
3.103
weight-engaged appliance inlet
component part of a weight-engaged coupler intended for integration or incorporation in the
functioning part of the appliance
3.104
rewirable weight-engaged connector
weight-engaged connector so constructed that the supply cord can be replaced
NOTE 1 The method of attachment of the supply cord, when installed in accordance with the manufacturer’s
installation instructions, is classified according to type X or type Y attachment requirements of the appliance
standards.
NOTE 2 The requirements for type X or Type Y attachment methods are given in IEC 60335-1.
3.105
type X attachment
method of attachment of the supply cord such that it can easily be replaced
NOTE The supply cord may be specially prepared and only available from the manufacturer or its service agent. A
specially prepared cord may include a part of the appliance.
___________
1)
A consolidated edition (1.2) exists containing IEC 60664-1:1992 and its Amendment 1 (2000) and Amendment 2
(2002).
– 12 – 60320-2-4 CEI:2005
3.106
fixation du type Y
méthode de fixation du câble d'alimentation telle que le remplacement de celui-ci est prévu
pour être réalisé par le fabricant, son service après vente ou une personne de qualification
similaire
3.107
fixation du type Z
méthode de fixation du câble d'alimentation telle qu'il ne puisse être remplacé sans casser ou
détruire l'appareil
4 Prescriptions générales
L'article correspondant de la CEI 60320-1 s'applique.
5 Généralités sur les essais
L'article correspondant de la CEI 60320-1 s´applique avec les modifications suivantes:
5.2 Remplacement:
Les échantillons sont essayés en l'état de livraison et dans les conditions normales d'emploi
conformes aux instructions d'installation du fabricant; les essais sont exécutés en courant
alternatif à 50 Hz ou 60 Hz.
Les prises mobiles connectées par gravité non démontables doivent être présentées avec un
câble souple d'au moins 1 m de longueur.
Pour les articles demandant que les essais soient réalisés sur les prises mobiles et socles de
connecteur connectés par gravité installés conformément aux instructions du fabricant, il faut
fournir des appareils ou parties d'appareils représentatifs.
5.5 Remplacement:
Dans le cas de socles de connecteurs connectés par gravité, trois échantillons sont exigés
pour être soumis aux essais spécifiés.
Dans le cas de prises mobiles connectées par gravité, six échantillons sont nécessaires:
– le lot 1 de trois échantillons est soumis aux essais prescrits, à l'exception de ceux des
Articles 14, 15, 16, 19, 20 et 21, et de 24.2;
– le lot 2 de trois échantillons est soumis aux essais de 14.1 et des Articles 15, 16, 19, 20
et 21 (y compris la répétition des essais de I'Article 16).
Dans le cas de prises mobiles connectées par gravité qui sont déclarées fournir une protection
contre les débordements d'eau, trois échantillons supplémentaires sont nécessaires, lesquels
sont soumis à l'essai de 14.2.
Dans le cas de prises mobiles connectées par gravité en matériau élastomère ou thermo-
plastique, deux échantillons supplémentaires sont nécessaires, lesquels sont soumis aux
essais de 24.2.1 ou 24.2.2 selon l'essai applicable.
Dans le cas de prises mobiles connectées par gravité non démontables avec un indicateur,
trois échantillons supplémentaires avec un pôle de l'indicateur déconnecté sont nécessaires
pour les essais de I'Article 15.
60320-2-4 IEC:2005 – 13 –
3.106
type Y attachment
method of attachment of the supply cord such that any replacement is intended to be made by
the manufacturer, its service agent or similar qualified person
3.107
type Z attachment
method of attachment of the supply cord such that it cannot be replaced without breaking or
destroying the appliance
4 General requirements
This clause of IEC 60320-1 applies.
5 General notes on tests
This clause of IEC 60320-1 applies amended as follows:
5.2 Replacement:
The specimens are tested as delivered and under normal conditions of use, in accordance with
the installation instructions of the manufacturer; they are tested with a.c. at 50 Hz or 60 Hz.
Non-rewirable weight-engaged connectors shall be submitted with a cord at least 1 m long.
For those clauses requiring the tests to be carried out on weight-engaged connectors and
appliance inlets installed in accordance with the manufacturer’s instructions, representative
appliances or appliance parts shall be supplied.
5.5 Replacement:
For weight-engaged appliance inlets three specimens are required, to be subjected to the tests
specified.
For weight-engaged connectors six specimens are required:
– set 1 of three specimens is subjected to the tests specified, with the exception of those of
Clauses 14, 15, 16, 19, 20 and 21, and of 24.2;
– set 2 of three specimens is subjected to the tests of 14.1 and of Clauses 15, 16, 19, 20 and
21 (including the repetition of Clause 16).
For weight-engaged connectors which are declared as providing protection against water
spillage, three additional specimens are required, which are subjected to the test of 14.2.
For weight-engaged connectors of elastomeric or thermoplastic material, two additional
specimens are required which are subjected to the tests of 24.2.1 or 24.2.2, whichever is
applicable.
For non rewirable weight-engaged connectors with indicators, three additional specimens with
one pole of the indicator disconnected are required for the tests of Clause 15.
– 14 – 60320-2-4 CEI:2005
6 Valeurs assignées
L'article correspondant de la CEI 60320-1 est remplacé comme suit:
6.1 La valeur normale de la tension assignée est 250 V. D'autres tensions assignées peuvent
être déclarées par le fabricant sous réserve qu'elles ne dépassent pas 250 V.
6.2 Le courant assigné doit être déclaré par le fabricant. Un connecteur peut avoir différentes
valeurs assignées de courant dépendant de l'utilisation à l'intérieur d'applications particulières.
Le courant assigné ne doit en aucun cas dépasser 16 A.
La conformité avec les exigences de 6.1 et de 6.2 est vérifiée par examen visuel du marquage
ou des instructions du fabricant pour l'installation et l'utilisation.
7 Classification
L'article correspondant de la CEI 60320-1 s’applique avec les modifications suivantes
7.1 Remplacement :
7.1 Les connecteurs connectés par gravité sont classés:
7.1.1 Selon l'existence ou non d'une protection contre les débordements d'eau lorsque la
prise mobile est installée selon les instructions du fabricant.
7.1.2 Selon le type d'équipement à raccorder en:
– connecteurs pour matériels de la classe I;
– connecteurs pour matériels de la classe II.
NOTE Pour la description des classes, voir la CEI 61140.
7.1.3 Selon que le connecteur est prévu ou non être engagé et désengagé avec le courant
circulant.
7.1.4 Selon la température ambiante de service maximale du connecteur.
NOTE Les températures ambiantes de service maximales de la prise mobile et du socle de connecteur peuvent
être différentes.
7.1.5 Selon le nombre de cycles à réaliser au cours de l'essai de l'Article 20: Les valeurs
préférentielles sont:
7.1.5.1 100 000
7.1.5.2 60 000
7.1.5.3 30 000
7.1.5.4 20 000
7.1.5.5 10 000
7.1.5.6 6 000
NOTE Des valeurs différentes de nombre de cycles d'endurance peuvent être déclarées p
...
IEC 60320-2-4 ®
Edition 1.1 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-4: Couplers dependent on appliance weight for engagement
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-4: Connecteurs à connexion par gravité
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IEC 60320-2-4 ®
Edition 1.1 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Appliance couplers for household and similar general purposes –
Part 2-4: Couplers dependent on appliance weight for engagement
Connecteurs pour usages domestiques et usages généraux analogues –
Partie 2-4: Connecteurs à connexion par gravité
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CM
CODE PRIX
ICS 29.120.20 ISBN 978-2-88910-123-8
– 2 – 60320-2-4 © IEC:2005+A1:2009
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references.5
3 Definitions .6
4 General requirements .7
5 General notes on tests.7
6 Standard ratings .7
7 Classification .8
8 Marking .9
9 Dimensions and compatibility.10
10 Protection against electric shock.11
11 Provision for earthing.11
12 Terminals and terminations.11
13 Construction .12
14 Moisture resistance.13
15 Insulation resistance and electric strength.14
16 Forces necessary to insert and withdraw the connector .15
17 Operation of contacts.15
18 Resistance to heating of appliance couplers for hot conditions or very hot conditions.15
19 Breaking capacity .16
20 Normal operation .16
21 Temperature rise .17
22 Cords and their connection .18
23 Mechanical strength.19
24 Resistance to heat and ageing .19
25 Screws, current-carrying parts and connections .20
26 Creepage distances, clearances and distances through insulation .20
27 Resistance of insulating material to heat, fire and tracking .25
28 Resistance to rusting .26
29 Electromagnetic compatibility (EMC) requirements .26
Annex AA (normative) Proof tracking test .28
Annex BB (normative) Needle flame test .29
Annex CC (normative) Apparatus for the test of Subclause 14.2 .30
Figure 101 – Examples of clearances .27
Figure CC.1 – Apparatus for the test of Subclause 14.2.30
Table 101 – Test voltages .14
Table 102 – Rated impulse voltage.21
Table 103 – Minimum clearances .21
Table 104 – Minimum creepage distances for basic insulation .23
60320-2-4 © IEC:2005+A1:2009 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-4: Couplers dependent on appliance weight
for engagement
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 60320-2-4 has been prepared by subcommittee 23G: Appliance
couplers, of IEC technical committee 23: Electrical accessories
This consolidated version of IEC 60320-2-4 consists of the first edition (2005) [documents
23G/251/FDIS and 23G/252/RVD] and its amendment 1 (2009) [documents 23G/290/CDV and
23G/291/RVC].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 1.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
– 4 – 60320-2-4 © IEC:2005+A1:2009
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
IEC 60320 consists of the following parts, under the general title Appliance couplers for
household and similar general purposes:
Part 1: General requirements
Part 2-1: Sewing machine couplers
Part 2-2: Interconnection couplers for household and similar equipment
Part 2-3: Appliance couplers with a degree of protection higher than IPX0
Part 2-4: Couplers dependent on appliance weight for engagement
This part 2 is to be used in conjunction with IEC 60320-1:Appliance couplers for household and
similar general purposes – Part 1: General requirements. It was established on the basis of the
second edition of that standard (2001).
The clauses of this standard supplement or modify the corresponding clauses of IEC 60320-1.
When a particular subclause of Part 1 is not mentioned in this part 2, the subclause of
IEC 60320-1 applies without modification as far as is reasonable. Where this standard states
“addition”, “modification” or “replacement”, the relevant requirement, test specification or
explanatory matter in IEC 60320-1 should be adapted accordingly.
Subclauses, figures or tables which are additional to those in Part 1 are numbered starting
from 101. Additional annexes are lettered AA, BB etc.
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
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60320-2-4 © IEC:2005+A1:2009 – 5 –
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 2-4: Couplers dependent on appliance weight
for engagement
1 Scope
This clause of IEC 60320-1 is replaced as follows:
This standard is applicable to two-pole appliance couplers for a.c. only, with or without earthing
contact, with a rated voltage not exceeding 250 V and a rated current not exceeding 16 A, for
household and similar general purposes and intended for incorporation or integration within
electric appliances or other electric equipment of multi-part construction for 50 Hz or 60 Hz
supply which depend on the weight of the appliance to ensure correct engagement.
NOTE 1 Appliance couplers complying with this standard are suitable for use in appliances which are used in an
ambient temperature not normally exceeding 25 °C but occasionally reaching 35 °C. However the ambient
temperature surrounding the appliance coupler may exceed these figures and is to be declared by the
manufacturer. It is possible that the maximum working ambient temperature for the appliance inlet and for the
connector may be different.
NOTE 2 Appliance couplers dependent on appliance weight for engagement may be subject to spillage of liquid in
normal use. They are classified according to whether protection against liquid spillage is provided, when installed in
accordance with the manufacturer’s installation instructions.
NOTE 3 If appliance inlets according to this standard are used with appliances or other equipment which may be
subject to spillage of liquid affecting the appliance inlet when the functioning part of the appliance or equipment is
seated on its power base, then protection against moisture is to be provided by the equipment.
NOTE 4 References to standard sheets within IEC 60320-1 do not apply to appliance couplers dependent on
appliance weight for engagement.
NOTE 5 Special constructions may be required:
– in locations where special conditions may prevail, for example, in ships, vehicles and the like;
– in hazardous locations, for example, where explosions are likely to occur.
2 Normative references
This clause of IEC 60320-1 applies with the following additions:
IEC 60112, Method for the determination of the proof and the comparative tracking indices of
solid insulating materials
IEC 60320-1, Appliance couplers for household and similar general purposes – Part 1:
General requirements
IEC 60320-2-2, Appliance couplers for household and similar general purposes – Part 2-2:
Interconnection couplers for household and similar equipment
IEC 60320-2-3, Appliance couplers for household and similar general purposes – Part 2-3:
Appliance couplers with a degree of protection higher than IPX0
IEC 60335-1, Household and similar electrical appliances – Safety – Part 1: General
requirements
IEC 60664-1, Insulation coordination for equipment within low voltage systems − Part 1:
Principles, requirements and tests
– 6 – 60320-2-4 © IEC:2005+A1:2009
IEC 60695-11-5, Fire hazard testing – Part 11-5: Test flames – Needle-flame test method –
Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-10, Fire hazard testing, – Part 11-10: Test flames, – 50 W horizontal and vertical
flame test methods
IEC 60730 (all parts), Automatic electrical controls for household and similar use
IEC 61032, Protection of persons and equipment by enclosures – Probes for verification
IEC 61058-1, Switches for appliances – Part 1: General requirements
IEC/TR 60083, Plugs and socket-outlets for domestic and similar general use standardized in
member countries of IEC
ISO 9772, Cellular plastics – Determination of horizontal burning characteristics of small
specimens subjected to a small flame
3 Definitions
This clause of IEC 60320-1 applies with the following additions:
3.101
weight-engaged coupler
coupler that relies on the weight of the functioning part of the appliance, in which it is
incorporated or integrated, to ensure correct engagement
NOTE The weight-engaged coupler is used in an appliance which is in two parts, for supplying the part that
performs the function of the appliance (the functioning part) from the power base which is connected to the power
supply.
3.102
weight-engaged connector
component part of the weight-engaged coupler which carries the power connections, and
engages with the corresponding appliance inlet.
3.103
weight-engaged appliance inlet
component part of a weight-engaged coupler intended for integration or incorporation in the
functioning part of the appliance
3.104
rewirable weight-engaged connector
weight-engaged connector so constructed that the supply cord can be replaced
NOTE 1 The method of attachment of the supply cord, when installed in accordance with the manufacturer’s
installation instructions, is classified according to type X or type Y attachment requirements of the appliance
standards.
NOTE 2 The requirements for type X or Type Y attachment methods are given in IEC 60335-1.
3.105
type X attachment
method of attachment of the supply cord such that it can easily be replaced
NOTE The supply cord may be specially prepared and only available from the manufacturer or its service agent. A
specially prepared cord may include a part of the appliance.
3.106
type Y attachment
method of attachment of the supply cord such that any replacement is intended to be made by
the manufacturer, its service agent or similar qualified person
60320-2-4 © IEC:2005+A1:2009 – 7 –
3.107
type Z attachment
method of attachment of the supply cord such that it cannot be replaced without breaking or
destroying the appliance
4 General requirements
This clause of IEC 60320-1 applies.
5 General notes on tests
This clause of IEC 60320-1 applies amended as follows:
5.2 Replacement:
The specimens are tested as delivered and under normal conditions of use, in accordance with
the installation instructions of the manufacturer; they are tested with a.c. at 50 Hz or 60 Hz.
Non-rewirable weight-engaged connectors shall be submitted with a cord at least 1 m long.
For those clauses requiring the tests to be carried out on weight-engaged connectors and
weight-engaged appliance inlets installed in accordance with the manufacturer’s instructions,
representative appliances or appliance parts shall be supplied.
5.5 Replacement:
For weight-engaged appliance inlets three specimens are required, to be subjected to the tests
specified.
For weight-engaged connectors six specimens are required:
– set 1 of three specimens is subjected to the tests specified, with the exception of those of
Clauses 14, 15, 16, 19, 20 and 21, and of 24.2;
− set 2 of three specimens is subjected to the tests of Clauses 14, 15, 16, 19, 20, 21 and
25.101 (including the repetition of Clause 16).
For weight-engaged connectors which are declared as providing protection against liquid
spillage, three additional specimens are required, which are subjected to the test of 14.2.
For weight-engaged connectors of elastomeric or thermoplastic material, two additional
specimens are required which are subjected to the tests of 24.2.1 or 24.2.2, whichever is
applicable.
For non rewirable weight-engaged connectors with indicators, three additional specimens with
one pole of the indicator disconnected are required for the tests of Clause 15.
6 Standard ratings
This clause of IEC 60320-1 is replaced as follows
6.1 The standard rated voltage is 250 V. Other rated voltages may be declared by the
manufacturer provided they do not exceed 250 V.
– 8 – 60320-2-4 © IEC:2005+A1:2009
6.2 The rated current shall be declared by the manufacturer. A coupler may have different
current ratings dependent on use within specified applications. The rated current shall not in
any case exceed 16 A.
Compliance with the requirements of 6.1 and 6.2 is checked by visual inspection of the marking
or the manufacturer’s instructions for installation and use.
7 Classification
This clause of IEC 60320-1 applies amended as follows:
7.1 Replacement:
7.1 Weight-engaged couplers are classified:
7.1.1 According to whether or not protection against liquid spillage is provided when the
connector is installed according to the manufacturer’s instructions
7.1.2 According to type of equipment to be connected:
– appliance couplers for class I equipment;
– appliance couplers for class II equipment.
NOTE For a description of the classes, see IEC 61140
7.1.3 According to whether or not the coupler is intended to be engaged and disengaged
with current flowing.
7.1.4 According to the maximum ambient working temperature of the coupler.
NOTE The maximum ambient working temperature of the connector and appliance inlet may be different.
7.1.5 According to the number of cycles to be performed in the test of Clause 20. Preferred
values are:
7.1.5.1 100 000
7.1.5.2 60 000
7.1.5.3 30 000
7.1.5.4 20 000
7.1.5.5 10 000
7.1.5.6 6 000
NOTE Different numbers of endurance cycles may be declared for different current ratings of the same coupler. A
cycle is two strokes as defined in Clause 19; that is one connection followed by one disconnection.
7.1.6 The following information is recorded to cover required tests.
7.1.6.1 According to the specified minimum cross-sectional area of cord.
7.1.6.2 According to the maximum allowable terminal temperature rise.
7.1.6.3 According to the maximum allowable termination temperature rise.
7.1.6.4 According to the maximum allowable contact temperature rise.
60320-2-4 © IEC:2005+A1:2009 – 9 –
7.1.6.5 According to the minimum appliance weight required for correct engagement.
7.1.6.6 According to the minimum base weight required for correct disengagement.
7.1.6.7 According to maximum pin temperature at the base of the pins of the corresponding
appliance inlet:
– appliance couplers for cold conditions (pin temperature not exceeding 70 °C);
– appliance couplers for hot conditions (pin temperature not exceeding 120 °C);
– appliance couplers for very hot conditions (pin temperature not exceeding
155 °C).
NOTE Temperature rise limits apply to both the inlet and connector, and can be specified separately if required.
7.2 This subclause of IEC 60320-1 does not apply.
NOTE The notes at the end of this subclause in IEC 60320-1 are also not applicable.
8 Marking
This clause of IEC 60320-1 applies amended as follows:
8.1 Replacement:
Weight-engaged connectors shall be marked with the name, trademark or identification mark of
the maker or of the responsible vendor and a type reference.
8.2 Replacement:
Weight-engaged appliance inlets shall be marked with the name, trademark or identification
mark of the maker or of the responsible vendor and a type reference.
8.5 This subclause of IEC 60320-1 does not apply.
8.6 Replacement:
In rewirable, non-reversible weight-engaged connectors, terminals shall be indicated as
follows:
earthing terminal: the symbol
neutral terminal: the letter N
In non-rewirable, non-reversible weight-engaged connectors, no marking of contacts is
necessary, but cores shall be connected as specified in 22.1.
Appliance inlets, other than those integrated or incorporated in an appliance or equipment, for
use with connectors according to this subclause, shall have terminal markings to correspond
with this subclause.
The marking symbol or letters shall not be placed on screws, removable washers or other
removable parts.
NOTE The requirement concerning the marking of terminals and the connection of conductors has been
introduced to take account of those countries who already require a polarized supply system with regard to a
possible future introduction of a unified plug and socket-outlet system, which will be to a great extent a polarized
system. It is recommended to take this requirement into account already now in countries which at present have no
polarized plug and socket-outlet system.
– 10 – 60320-2-4 © IEC:2005+A1:2009
Rewirable connectors shall be supplied with the following instructions:
(1) a diagram illustrating the method of connection of the conductors, in particular the (excess)
length of the earthing conductor and the operation of the cord anchorage;
(2) a full-scale diagram showing the length of sleeving and insulation to be stripped back;
(3) the sizes and types of cords suitable.
(4) the type of attachment for connector and inlet.
NOTE 1 It is essential that the connection of the earthing conductor is shown in an instructive way, preferably with
sketches.
NOTE 2 These instructions need not follow connectors supplied directly to an equipment manufacturer.
NOTE 3 In order to comply with the National Electrical Code of the United States the neutral terminal must be
either white in colour, or labelled “white”. One way of accomplishing this is to nickel plate the neutral terminal and to
leave the other terminal(s) unplated.
Additional subclause:
8.101 Instructions for installation and use shall be supplied with weight-engaged appliance
couplers. These instructions shall contain the information necessary to ensure compliance with
this standard and shall contain the classifications declared by the manufacturer according to
Clause 7.
For weight-engaged couplers intended to be exclusively delivered to the equipment
manufacturer, the instruction sheet may be replaced by a leaflet, letter, or drawing, etc. It is not
necessary for each coupler to be accompanied by such a document.
9 Dimensions and compatibility
This clause of IEC 60320-1 applies amended as follows:
9.1 Replacement:
Weight-engaged appliance couplers may take any form appropriate to their function, but shall
comply with the requirements of this standard as far as applicable.
9.2 This subclause of IEC 60320-1 does not apply.
9.3 Replacement:
It shall not be possible to make improper connections between weight-engaged connectors and
weight-engaged appliance inlets when installed in accordance with the manufacturer’s
instructions. In those constructions where the design is such that transient single-pole
connections occur as the weight-engaged connector is placed into and withdrawn from the
appliance inlet during normal use, then such transient single-pole connections are allowed.
Weight-engaged couplers shall not allow improper connections with plugs or portable socket
outlets complying with IEC 60083.
Weight-engaged couplers shall not allow improper connections with connectors or appliance
inlets complying with the standard sheets of IEC 60320-1, IEC 60320-2-2 or IEC 60320-2-3.
Compliance is checked by examination and reference to the manufacturer’s declarations.
NOTE “Improper connections” include single-pole connection and other connections which do not comply with the
requirements concerning protection against electric shock.
If in doubt, reference should be made to the appropriate appliance standards regarding the requirements for weight-
engaged connectors and appliance inlets.
60320-2-4 © IEC:2005+A1:2009 – 11 –
9.4 Replacement:
It shall not be possible to engage connectors for class II equipment with appliance inlets for
class I equipment.
Compliance is checked by inspection.
9.5 Note 1 of this subclause is not applicable.
9.6 This subclause of IEC 60320-1 does not apply.
10 Protection against electric shock
This clause of IEC 60320-1 applies amended as follows:
10.1 Appliance couplers shall be so designed that live parts of the appliance inlets are not
accessible when the connector is in partial or complete engagement.
Weight-engaged appliance connectors shall be so designed that the live parts and parts
connected thereto are not accessible when the connector is properly assembled and wired as
in normal use.
Note 2 is not applicable.
10.2 This clause of IEC 60320-1 applies amended as follows.
NOTE To be assessed when incorporated in the end product.
10.101 Test probe 13 of IEC 61032 is applied without appreciable force through openings in
appliance connectors.
NOTE “Without appreciable force” is considered to be a force not exceeding 1 N.
It shall not be possible to touch live parts with the test probe.
11 Provision for earthing
This clause of IEC 60320-1 applies amended as follows:
11.2 The note of this subclause is not applicable.
12 Terminals and terminations
This clause of IEC 60320-1 applies amended as follows:
Replace the first two paragraphs as follows:
For weight-engaged appliance inlets and weight-engaged connectors integrated in or
incorporated in an appliance or equipment, the requirements in the appropriate IEC standard
for that appliance or equipment shall apply.
12.1 Replacement
For weight-engaged appliance inlets and weight-engaged connectors, the requirements in the
appropriate IEC standard for the appliance or equipment into which they are intended to be
integrated or incorporated shall apply.
– 12 – 60320-2-4 © IEC:2005+A1:2009
12.2 This subclause of IEC 60320-1 does not apply.
12.3 This subclause of IEC 60320-1 does not apply.
13 Construction
This clause of IEC 60320-1 applies amended as follows:
13.1 The note of this subclause is not applicable.
13.4 Replacement:
Pins of weight-engaged appliance inlets shall
• be securely retained,
• have adequate mechanical strength,
• not be possible to remove without the aid of a tool, and
• live parts shall be surrounded by a shroud.
NOTE This requirement does not exclude pins which are to some extent floating.
The security of components designed to function as contact pins, whether in the inlet or
connector part, is checked by inspection and by the tests of Clause 19 and Clause 20.
13.5 Replacement:
The contact system of a weight-engaged coupler shall be self-adjusting so as to provide
adequate contact pressure.
For connectors other than 0,2 A connectors self-adjustment of the contacts shall not depend
upon the resiliency of insulating material.
Compliance is checked by inspection.
NOTE The self-adjustment of the contacts may be provided in either the appliance inlet or the connector or both.
13.9 This subclause of IEC 60320-1 applies amended as follows:
NOTE 2 is not applicable.
13.11 This subclause of IEC 60320-1 does not apply.
13.12 Replacement:
Fuses, relays, thermostats and thermal cut-outs incorporated in weight-engaged connectors
and weight-engaged appliance inlets shall comply with the relevant IEC standards.
Switches or energy regulators incorporated in weight-engaged connectors or weight-engaged
appliance inlets shall comply with IEC 61058 and IEC 60730 respectively.
Where an weight-engaged appliance inlet is integrated in or incorporated in an appliance or
equipment, then that part which can be identified as the appliance inlet shall comply with the
requirements of this standard.
Compliance is checked by inspection and by testing the switches, fuses, relays, thermostats,
thermal cut-outs or energy regulators according to the relevant IEC standard.
60320-2-4 © IEC:2005+A1:2009 – 13 –
14 Moisture resistance
This clause of IEC 60320-1 is replaced as follows:
14.1 Weight-engaged couplers shall be proof against humid conditions, which may occur in
normal use.
NOTE If weight-engaged couplers are used with equipment that is subject to the spillage of liquid in normal use
the protection is assumed to be provided by the equipment.
Compliance is checked by the humidity treatment described in this clause, followed
immediately by the tests of Clause 15.
Weight-engaged connectors and appliance inlets are not in engagement when subjected to
humidity treatment and rewirable weight-engaged connectors are not fitted with a cord.
The humidity test is carried out in a humidity cabinet containing air with a relative humidity
maintained between 91% and 95%. The temperature of the air, at all places where specimens
can be located, is maintained within ±1 °C of any convenient value t °C, between 20 °C and
30 °C.
Before being placed in the humidity cabinet, the specimens are brought to a temperature
between t °C and (t + 4) °C.
The specimens are kept in the cabinet for:
– 168 h (7days) for connectors with earthing contact and for appliance inlets with earthing
contact, which are submitted as individual accessories, not incorporated in other
equipment;
– 48 h (2 days) in all other cases.
NOTE 1 In most cases, the specimens may be brought to the specified temperature by keeping them at this
temperature for at least 4h before the humidity treatment.
NOTE 2 A relative humidity between 91 % and 95 % can be obtained by placing in the humidity cabinet a
saturated solution of sodium sulphate (Na2SO4) or potassium nitrate (KNO3) in water, having a sufficiently large
contact surface with the air.
NOTE 3 In order to achieve the specified conditions within the cabinet, it is necessary to ensure constant
circulation of the air within and, in general, to use a cabinet which is thermally insulated.
After this treatment, the specimen shall show no damage within the meaning of this standard.
14.2 Weight-engaged connectors which are declared as providing protection against liquid
spillage shall be constructed so that, when installed into a representative power base, in
accordance with manufacturer’s installation instructions, the connector is not affected by liquid.
Compliance is checked by the following test:
The power base is placed on a horizontal surface and 30 ml of de-ionised water containing
approximately 1 % NaCl is poured over the appliance connector through a vertical tube 30 mm
long and having an internal diameter of 8 mm. The outlet of the tube is located 200 mm above
the upper surface of the connector and the saline solution is poured steadily over a period of 2
s. For connectors having multiple contact apertures spaced more than 30 mm apart this test is
repeated on clean samples of the power base over each contact aperture or aperture group.
The representative power base and connector installation shall then withstand the electric
strength test of 15.3, the voltage for reinforced insulation however, being reduced to 2 500 V.
The test is performed using the apparatus of Annex CC.
– 14 – 60320-2-4 © IEC:2005+A1:2009
15 Insulation resistance and electric strength
This clause of IEC 60320-1 applies amended as follows:
15.3 Replacement:
Immediately after the test of 15.2 the insulation is subjected for 1 min to a voltage of
substantially sine-wave form and having a frequency of 50 Hz to 60 Hz. The values of the test
voltage are shown in Table 101.
Accessible parts of insulating material are covered with metal foil.
Care should be taken to avoid overstressing basic insulation. In particular the metal foil shall
approach no closer than the specified creepage distance for reinforced insulation to earthed
parts.
Weight-engaged connectors are tested when in engagement with a weight-engaged appliance
inlet and also when not in engagement.
Initially, not more than half the prescribed voltage is applied, then it is raised rapidly to the full
value.
No flashover or breakdown shall occur during the test.
Table 101 – Test voltages
Test voltage
V
Class II
Points of application
appliances and Other
class II appliances
constructions
1. Between live parts and accessible parts
separated from live parts by
– basic insulation only
– 1 000
– reinforced insulation
3 000 3 000
2. For parts with double insulation, between metal
parts separated from live parts by basic
insulation only and
– live parts 1 250 1 250
– accessible parts 2 500 2 500
3. Between metal enclosures or covers lined with
insulating material and metal foil in contact with
the inner surface of the lining, if the distance
between live parts and these metal enclosures or 2 500 1 250
covers, measured through the lining, is less than
the appropriate clearance as specified in
Clause 26.
NOTE 1 The high-voltage transformer used for the test is so designed that, when the output terminals are short
circuited after the output voltage has been adjusted to the appropriate test voltage, the output current is at least
200 mA. The overcurrent relay must not trip when the output current is less than 100 mA.
NOTE 2 Care is taken that the r.m.s. value of the test voltage is measured within ±3 %.
NOTE 3 Glow discharges without drop in voltage are neglected.
60320-2-4 © IEC:2005+A1:2009 – 15 –
16 Forces necessary to insert and withdraw the connector
This Clause of IEC 60320-1 is replaced as follows:
16.1 The construction of weight-engaged appliance couplers shall be such that the connector
will fully engage under the weight of the appliance or equipment, and will disengage under the
weight of the power base. The minimum values of these weights shall be specified by the
manufacturer’s installation instructions.
Compliance is checked by the tests of 16.2 and 16.3, which are made on a connector and an
appliance inlet, and is repeated after the test of Clause 21. A representative appliance and
power base, each having the minimum weight declared by the manufacturer, may be supplied
for this test.
16.2 The minimum weight for full engagement is determined by mounting a weight-engaged
connector and weight-engaged appliance inlet so that they may engage freely, and that the axis
of engagement is vertical. A force equal to the specified minimum appliance weight, less the
weight of the appliance inlet, is applied vertically downwards to the appliance inlet. The
appliance inlet shall fully enter the connector, in accordance with the manufacturer’s
installation instructions. Any initial resistance caused by sealing shutters and the like may be
overcome manually, but the coupler shall be fully engaged under the specified force alone.
NOTE The apparatus with which this test is performed will depend on the construction of the weight-engaged
appliance coupler under consideration. A representative appliance having the declared minimum weight may be
used to apply the force.
16.3 The minimum weight for correct disengagement of the power base shall be determined
by placing the weight-engaged appliance connector on a horizontal surface so that its axis of
engagement is vertical, and attaching to the connector a weight equal to the minimum weight
declared by the manufacturer. The weight-engaged connector shall be free to move on the
surface.
The weight-engaged appliance inlet is then engaged fully with the connector and withdrawn.
The connector shall not remain in the appliance inlet.
NOTE A representative power base of the minimum weight declared by the manufacturer may be used to provide
the weight required in this test.
Weight-engaged connectors for which a maximum ambient working temperature is specified in
7.1.4 which is higher than ambient temperature are tested twice, once at an ambient
temperature, and once after the appliance inlet has been raised to the specified maximum
ambient working temperature.
17 Operation of contacts
The third paragraph of IEC 60320-1 is replaced as follows:
Compliance with the requirements is checked by inspection and by the tests of Clauses 16, 18,
19, 20, 21 and 25.101.
18 Resistance to heating of appliance couplers for hot conditions
or very hot conditions
This clause of IEC 60320-1 applies, amended as follows:
NOTE Where the appliance coupler i
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