EN 60320-1:2015

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aparatne spojke za gospodinjstva in podobne splošne namene - 1. del: Splošne zahteve (IEC 60320-1:2015)Gerätesteckvorrichtungen für den Hausgebrauch und ähnliche allgemeine Zwecke -Teil 1: Allgemeine Anforderungen (IEC 60320-1:2015)Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015)Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015)29.120.30Plugs, socket-outlets, couplersICS:Ta slovenski standard je istoveten z:EN 60320-1:2015SIST EN 60320-1:2015en,fr,de01-december-2015SIST EN 60320-1:2015SLOVENSKI
STANDARDSIST EN 60320-1:2003/A1:2008SIST EN 60320-1:20031DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 60320-1
September 2015 ICS 29.120.30
Supersedes
EN 60320-1:2001
English Version
Appliance couplers for household and similar general purposes - Part 1: General requirements (IEC 60320-1:2015)
Connecteurs pour usages domestiques et usages généraux analogues - Partie 1: Exigences générales (IEC 60320-1:2015)
Gerätesteckvorrichtungen für den Hausgebrauch und ähnliche allgemeine Zwecke -Teil 1: Allgemeine Anforderungen (IEC 60320-1:2015) This European Standard was approved by CENELEC on 2015-07-29. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17,
B-1000 Brussels © 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60320-1:2015 E SIST EN 60320-1:2015

This document supersedes EN 60320-1:2001. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 60320-1:2015 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60364-4-44 NOTE Harmonized as HD 60364-4-44. IEC 61140 NOTE Harmonized as EN 61140. ISO 1466 NOTE Harmonized as EN ISO 1456. ISO 2081 NOTE Harmonized as EN ISO 2081.
EN 60320-3:2014 3
Annex ZA (normative)
Normative references to international publications with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.
Publication Year Title EN/HD Year IEC 60068-2-31 -
Environmental testing -- Part 2-31: Tests - Test Ec: Rough handling shocks, primarily for equipment-type specimens EN 60068-2-31 -
IEC 60068-2-60 -
Environmental testing -- Part 2-60: Tests - Test Ke: Flowing mixed gas corrosion test EN 60068-2-60 1) -
IEC 60068-2-75 -
Environmental testing - Part 2-75: Tests - Test Eh: Hammer tests EN 60068-2-75 -
IEC 60112 -
Method for the determination of the proof and the comparative tracking indices of solid insulating materials EN 60112 -
IEC 60227 series
Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V --
- series
IEC 60245 series
Rubber insulated cables - Rated voltages up to and including 450/750 V - series
IEC 60320 series
Appliance couplers for household and similar general purposes EN 60320 series
IEC 60320-3 2014
Appliance couplers for household and similar general purposes - Part 3: Standard sheets and gauges EN 60320-3 2014
IEC 60417 -
Graphical symbols for use on equipment. Index, survey and compilation of the single sheets. - -
IEC 60664-1 2007
Insulation coordination for equipment within low-voltage systems -- Part 1: Principles, requirements and tests EN 60664-1 2007
IEC 60695-2-10 2000
Fire hazard testing -- Part 2-10: Glowing/hot-wire based test methods - Glow-wire apparatus and common test procedure EN 60695-2-10 2001
IEC 60695-2-11 2000
Fire hazard testing -- Part 2-11: Glowing/hot-wire based test methods - Glow-wire flammability test method for end-products EN 60695-2-11 2001
1) To be published SIST EN 60320-1:2015

Fire hazard testing -- Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability test method for materials EN 60695-2-12 2001 IEC 60695-2-13 2000
Fire hazard testing -- Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignitability test method for materials EN 60695-2-13 2001 IEC 60695-10-2 -
Fire hazard testing -- Part 10-2: Abnormal heat - Ball pressure test method EN 60695-10-2 -
IEC 60730-2-11 -
Automatic electrical controls for household and similar use -- Part 2-11: Particular requirements for energy regulators EN 60730-2-11 -
IEC 60999-1 -
Connecting devices - Electrical copper conductors - Safety requirements for screw-type and screwless-type clamping units -- Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm² up to 35 mm² (included) EN 60999-1 -
IEC 61058 series
Switches for appliances EN 61058 series
IEC 60320-1 Edition 3.0 2015-06 INTERNATIONAL STANDARD
Appliance couplers for household and similar general purposes –
Part 1: General requirements
INTERNATIONAL ELECTROTECHNICAL COMMISSION
ICS 29.120.30
ISBN 978-2-8322-2740-4
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CONTENTS FOREWORD . 6 1 Scope . 8 2 Normative references. 8 3 Terms and definitions . 9 4 General requirements . 12 5 General notes on tests . 13 5.1 General . 13 5.2 Test samples . 13 5.3 Failures . 13 5.4 Routine tests . 13 6 Standard ratings . 14 7 Classification of appliance couplers . 14 8 Marking . 14 8.1 General . 14 8.2 Additional markings . 14 8.3 Appliance couplers for class II equipment . 15 8.4 Symbols or alphanumeric notations . 15 8.5 Legibility of markings. 15 8.6 Terminal markings and wiring instructions . 15 8.7 Durability . 16 8.8 Test and inspection . 16 9 Dimensions and compatibility . 16 9.1 General . 16 9.2 Single‐pole connections . 16 9.3 Compatibility . 16 9.4 Dimensions for standardized appliance couplers . 17 9.5 Dimensions for non-standardized appliance couplers . 17 10 Protection against electric shock . 17 10.1 Accessibility of live parts . 17 10.2 Protection against single pole connection . 18 10.3 Protection against access to live parts . 18 10.4 External parts . 18 10.5 Shrouds . 18 11 Provision for earthing . 18 12 Terminals and terminations . 18 12.1 General . 18 12.2 Rewirable appliance couplers . 19 12.3 Non‐rewirable appliance couplers . 19 13 Construction . 19 13.1 Risk of accidental contact . 19 13.2 Contact positions . 19 13.3 Parts covering live parts . 19 13.4 Pin construction . 20 13.4.1 Prevention of rotation . 20 13.4.2 Pin retention . 20 SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 3 –
13.4.3 Non‐solid pins . 20 13.5 Contact pressure . 21 13.6 Enclosure. 21 13.6.1 General . 21 13.6.2 Rewirable connectors/plug connectors . 21 13.6.3 Non-rewirable connectors/plug connectors . 22 13.7 Earth connection . 22 13.8 Location of terminals and terminations . 23 13.8.1 General . 23 13.8.2 Free wire test for rewirable accessories . 23 13.8.3 Free wire test for non-rewirable non-moulded-on accessories . 23 13.8.4 Free wire verification for non-rewirable moulded-on accessories . 24 13.9 Connectors/plug connectors without earthing contact . 24 13.10 Fuses, relays, thermostats, thermal cut-outs and switches . 24 14 Moisture resistance . 24 15 Insulation resistance and electric strength . 25 15.1 General . 25 15.2 Insulation resistance . 26 15.3 Dielectric strength . 27 16 Forces necessary to insert and to withdraw the connector/appliance outlet . 28 16.1 General . 28 16.2 Verification of the maximum withdrawal force . 28 16.3 Verification of the minimum withdrawal force . 30 17 Operation of contacts . 31 18 Resistance to heating of appliance couplers for hot conditions or very hot conditions . 31 18.1 General . 31 18.2 Heating test for connectors/plug connectors . 31 18.3 Heating test for appliance inlets/appliance outlets . 32 19 Breaking capacity . 32 20 Normal operation . 34 21 Temperature rise . 34 22 Cords and their connection . 35 22.1 Cords for non-rewirable connectors/plug connectors . 35 22.2 Cord anchorage . 36 22.2.1 General . 36 22.2.2 Additional requirements for rewirable connectors/plug connectors . 36 22.2.3 Pull test for cable anchorage . 37 22.3 Flexing test . 39 23 Mechanical strength . 41 23.1 General . 41 23.2 Free fall test . 42 23.3 Lateral pull test . 42 23.4 Impact test . 44 23.5 Deformation test . 44 23.6 Torque and pull test . 45 24 Resistance to heat and ageing . 45 SIST EN 60320-1:2015

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24.1 Resistance to heat . 45 24.2 Resistance to ageing . 46 24.2.1 General . 46 24.2.2 Ageing test for elastomeric materials . 46 24.2.3 Ageing test for thermoplastic materials . 46 24.2.4 Ageing test assessment . 46 25 Screws, current-carrying parts and connections . 47 25.1 General . 47 25.2 Electrical connections . 48 25.3 Securement of connections . 48 25.4 Metallic parts . 48 26 Clearances, creepage distances and solid insulation . 49 26.1 General . 49 26.2 Clearances . 49 26.2.1 Dimensioning . 49 26.2.2 Minimum values for clearances . 50 26.3 Creepage distances . 51 26.3.1 Dimensioning . 51 26.3.2 Minimum creepage distances . 51 26.4 Solid insulation . 52 27 Resistance of insulating material to heat, fire and tracking . 53 27.1 Resistance to heat and fire . 53 27.1.1 General . 53 27.1.2 Object of the test . 53 27.1.3 General description of the test . 53 27.1.4 Description of test apparatus . 53 27.1.5 Degree of severity . 53 27.1.6 Verification of the thermocouple . 54 27.1.7 Preconditioning . 54 27.1.8 Initial measurements . 54 27.1.9 Test procedure . 54 27.1.10 Observations and measurements . 54 27.1.11 Evaluation of test results . 54 27.2 Resistance to tracking . 54 28 Resistance to rusting . 54 29 Electromagnetic compatibility (EMC) requirements . 55 29.1 Immunity – Accessories not incorporating electronic components . 55 29.2 Emission – Accessories not incorporating electronic components . 55 Annex A (normative)
Proof tracking test . 56 Annex B (normative)
Routine tests for factory wired appliance couplers related to safety . 57 B.1 General . 57 B.2 Polarized systems: Phase (L) and neutral (N) – Correct connection . 57 B.3 Earth (PE) continuity . 58 B.4 Short-circuit/wrong connection and reduction in creepage distance and clearance . 58 B.4.1 Accessible surface safety check . 58 B.4.2 Short-circuit/wrong connection . 58 SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 5 –
Annex C (normative)
Test schedule . 59 Annex D (informative)
Comparison of typical conductor cross-sectional areas . 61 Bibliography . 62
Figure 1 – Intended use of appliance couplers . 10 Figure 2 – Device for testing non-solid pins . 21 Figure 3 – Apparatus for checking the withdrawal force . 29 Figure 4 – Gauge for verification of the minimum withdrawal force . 30 Figure 5 – Circuit diagram for breaking capacity and normal operation tests . 33 Figure 6 – Apparatus for testing the cord anchorage . 37 Figure 7 – Apparatus for the flexing test . 40 Figure 8 – Example of apparatus for pulling test . 43
Table 1 – Position of contacts . 19 Table 2 – Maximum diameters of the cords . 26 Table 3 – Minimum insulation resistance . 27 Table 4 – Dielectric strength . 27 Table 5 – Maximum and minimum withdrawal forces . 28 Table 6 – Ratings for the tests of Clause 19 . 33 Table 7 – Ratings for the tests of Clause 20 . 34 Table 8 – Cords and conductors for the tests of Clause 21 . 35 Table 9 – Type and nominal cross-sectional area of cords . 36 Table 10 – Types of cord for the rewirable connector/plug connector test . 38 Table 11 – Values for the lateral pulls applied . 44 Table 12 – Values for torque and pull forces . 45 Table 13 – Torque applied for the tightening and loosening test . 48 Table 14 – Rated impulse withstand voltage for appliance couplers energized directly from the low voltage mains . 50 Table 15 – Minimum clearances for basic insulation . 51 Table 16 – Minimum creepage distances for basic and functional insulation . 52 Table B.1 – Test overview . 57 Table C.1 – Test schedule . 59 Table D.1 – Comparison of conductor sizes . 61
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INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 1: General requirements
FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, 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 60320-1 has been prepared by subcommittee 23G: Appliance couplers, of IEC technical committee 23: Electrical accessories. This third edition cancels and replaces the second edition published in 2001 and Amendment 1:2007. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition: a) Standard sheets moved from IEC 60320-1 to IEC 60320-3. b) Clarification of requirements for non-standardized appliance couplers. SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 7 –
The text of this standard is based on the following documents: FDIS Report on voting 23G/345/FDIS 23G/346/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. A list of all the parts in the IEC 60320 series, under the general title Appliance couplers for household and similar general purposes, can be found on the IEC website. Part 1 is to be used in conjunction with the following parts of the IEC 60320 series, if applicable. IEC 60320-2-1, Appliance couplers for household and similar general purposes – Part 2-1: Sewing machine couplers IEC 60320-2-3, Appliance coupler for household and similar general purposes – Part 2-3: Appliance coupler with a degree of protection higher than IPX0 IEC 60320-2-4, Appliance couplers for household and similar general purposes – Part 2-4: Couplers dependent on appliance weight for engagement IEC 60320-3, Appliance couplers for household and similar general purposes – Part 3: Standard sheets and gauges NOTE If these standards are referring to another edition of IEC 60320-1, that edition is applicable. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website 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. A bilingual version of this publication may be issued at a later date.
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APPLIANCE COUPLERS FOR HOUSEHOLD
AND SIMILAR GENERAL PURPOSES –
Part 1: General requirements
1 Scope This part of lEC 60320 sets the general requirements for appliance couplers for two poles and two poles with earth contact and for the connection of electrical devices for household and similar onto the mains supply. This part of lEC 60320 is also valid for appliance inlets/appliance outlets integrated or incorporated in appliances. The rated voltage does not exceed 250 V (a.c.) and the rated current does not exceed 16 A. Appliance couplers complying with this part of lEC 60320 are suitable for normal use at ambient temperatures not normally exceeding +40 °C, but their average over a period of 24 h does not exceed +35 °C, with a lower limit of the ambient air temperature of –5 °C.
Appliance couplers are not suitable for
– use in place of plug and socket-outlet systems according to IEC 60884-1.
– use in place of devices for connecting luminaires (DCLs) according to IEC 61995 or luminaire supporting couplers (LSCs). NOTE Requirements for d.c. are under consideration. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-31, Environmental testing – Part 2-31: Tests – Test Ec: Rough handling shocks, primarily for equipment-type specimens IEC 60068-2-60, Environmental testing – Part 2-60: Tests – Test Ke: Flowing mixed gas corrosion test IEC 60068-2-75, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests IEC 60112, Method for the determination of the proof and the comparative tracking indices of solid insulating materials IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V IEC 60245 (all parts), Rubber insulated cables – Rated voltages up to and including 450/750 V SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 9 –
IEC 60320 (all parts), Appliance couplers for household and similar general purposes IEC 60320-3:2014, Appliance couplers for household and similar general purposes – Part 3: Standard sheets and gauges
IEC 60417, Graphical symbols for use on equipment (available from: http://www.graphical-symbols.info/equipment) IEC 60664-1:2007, Insulation coordination for equipment within low voltage systems – Part 1: Principles, requirements and tests
IEC 60695‐2‐10:2000, Fire hazard testing – Part 2‐10: Glowing/hot‐wire based test methods – Glow‐wire apparatus and common test procedure IEC 60695‐2‐11:2000, Fire hazard testing – Part 2‐11: Glowing/hot‐wire based test methods –Glow‐wire flammability test method for end‐products (GWEPT) IEC 60695‐2‐12:2000, Fire hazard testing – Part 2‐12: Glowing/hot‐wire based test methods –Glow‐wire flammability index (GWFI) test method for materials IEC 60695‐2‐13:2000, Fire hazard testing – Part 2‐13: Glowing/hot‐wire based test methods –Glow‐wire ignition temperature (GWIT) test method for materials IEC 60695‐10‐2, Fire hazard testing – Part 10: Abnormal heat – Ball pressure test method IEC 60730-2-11, Automatic electrical controls for household and similar use – Part 2-11: Particular requirements for energy regulators IEC 60999-1, Connecting devices – Electrical copper conductors – Safety requirements for screw-type and screwless-type clamping units – Part 1: General requirements and particular requirements for clamping units for conductors from 0,2 mm2 up to 35 mm2 (included) IEC 61032, Protection of persons and equipment by enclosures – Probes for verification IEC 61058 (all parts), Switches for appliances 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1
appliance coupler means enabling the connection and disconnection of an appliance or equipment to the supply SEE: Figure 1. SIST EN 60320-1:2015

– 10 – IEC 60320-1:2015  IEC 2015
1 Plug 5 Plug connector (see 3.2.1) 2 Connector (see 3.1.1) 6 Cord set (see 3.5) 3 Appliance inlet (see 3.1.2) 7 Interconnection cord set (see 3.6) 4 Appliance outlet (see 3.2.2)
Figure 1 – Intended use of appliance couplers 3.1.1
connector
part of the appliance coupler integral with, or intended to be attached to, one cord connected to the supply
SEE: Figure 1. [SOURCE: IEC 60050-442:1998, 442-07-02] 3.1.2
appliance inlet part of the appliance coupler integrated as a part of an appliance or incorporated as a separate part in the appliance or equipment or intended to be fixed to it SEE: Figure 1. 3.2
interconnection coupler appliance coupler enabling the connection and disconnection of an appliance or equipment to a cord leading to another appliance or equipment SEE: Figure 1. Note 1 to entry: An interconnection coupler is a type of appliance coupler. 3.2.1
plug connector part of the interconnection coupler integral with or intended to be attached to one cord
SEE: Figure 1. [SOURCE: IEC 60050-442:1998, 442-07-09] IEC Apparatus Apparatus SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 11 –
3.2.2
appliance outlet part of the interconnection coupler which is the part integrated or incorporated in the appliance or equipment or intended to be fixed to it and from which the supply is obtained SEE: Figure 1. [SOURCE: IEC 60050-442:1998, 442-07-08] 3.3
rewirable accessory accessory so constructed that a cable or cord can be replaced
3.4
non‐rewirable accessory accessory so constructed that it forms a complete unit with flexible supply cable or cord after connection and assembly by the manufacturer of the accessory 3.5
cord set assembly consisting of one cable or cord fitted with one non-rewirable plug and one non-rewirable connector, intended for the connection of an electrical appliance or equipment to the electrical supply
SEE: Figure 1. 3.6
interconnection cord set assembly consisting of one cable or cord fitted with one non-rewirable plug connector and one non-rewirable connector, intended for the interconnection between two electrical appliances
SEE: Figure 1
[SOURCE: IEC 60050-442:1998, 442-07-06, modified – “a” has been changed to “one” in two places and a reference to Figure 1 has been added.] 3.7
integrated appliance coupler appliance coupler which is formed by the housing or enclosure of the appliance or equipment and cannot be tested separately 3.8
incorporated appliance coupler appliance coupler built in or fixed to an appliance or equipment, but that can be tested separately 3.9
base of a pin part of the pin where it protrudes from the engagement face
3.10
retaining device mechanical provision/arrangement which holds a connector in proper engagement with a corresponding appliance inlet and prevents its unintentional withdrawal SIST EN 60320-1:2015

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3.11
rated voltage voltage assigned by the manufacturer for a specified operating condition of an accessory [SOURCE: IEC 60050-442:1998, 442-01-03] 3.12
rated current current assigned by the manufacturer for a specified operating condition of an accessory [SOURCE: IEC 60050-442:1998, 442‐01‐02] 3.13
terminal part of an accessory to which a conductor is attached, providing a re-usable connection
[SOURCE: IEC 60050-442:1998, 442‐06‐05] 3.14
termination part of an accessory to which a conductor is permanently attached
[SOURCE: IEC 60050-442:1998, 442‐06-06] 3.15
thread‐cutting screw screw having an interrupted thread which, by screwing in, makes a thread by removing material from the cavity
[SOURCE: IEC 60050-442:1998, 442-06-03] 3.16
type test test of one or more devices made to a certain design to show that the design meets certain requirements [SOURCE: IEC 60050-811:1991, 811-10-04] 3.17
routine test test to which each individual device is subjected during and/or after manufacture to ascertain whether it complies with certain criteria [SOURCE: IEC 60050-811:1991, 811-10-05] 4 General requirements Appliance couplers shall be so designed and constructed that in normal use their performance is reliable and without danger to the user or the surroundings. Non-standardized appliance couplers shall comply with all safety requirements of this standard and shall be tested together with its counterpart. Compliance is checked by carrying out all the tests specified. SIST EN 60320-1:2015

IEC 60320-1:2015  IEC 2015 – 13 –
Appliance couplers according to this standard are not intended to be used in portable accessories covered by IEC TC 23. 5 General notes on tests 5.1 General Tests shall be made to prove compliance with the requirements laid down in this standard, where applicable.
Tests are as follows: – Type tests shall be made on representative samples of each accessory. – Routine tests shall be conducted by the manufacturer and made on each accessory. – Unless otherwise specified, the tests are carried out in the order of the clauses. – Unless otherwise specified, appliance couplers are tested with their counterparts, complying with this standard. – Appliance inlets and appliance outlets integrated or incorporated in an appliance or equipment are tested under the conditions of use of the equipment, the number of test samples then being the same as the number of test samples of equipment required according to the relevant standard for the equipment. – Appliance couplers are considered to comply with this standard if there is not more than one failure of one test sample in one of the tests. If one test sample fails in a test, that test and those preceding which may have influenced the result of that test are repeated on another set of test samples, all of which shall then comply with the repeated tests. Subclauses 5.2 to 5.3 are applicable to type tests. For number of samples and test sequences, see Annex C. 5.2 Test samples
Unless otherwise specified, the test samples are tested as delivered and under normal conditions assembled and installed as in normal use according to the manufacturer's instructions at an ambient temperature of 20 °C ± 5 °C; they are tested with a.c. at 50 Hz or 60 Hz. Tests shall not commence earlier than 168 h after manufacture. Non‐rewirable connectors/plug connectors, other than those forming part of a cord set, shall be submitted with a cord at least 1 m long. 5.3 Failures In general, only the test which caused the failure need be repeated unless
a) a failure occurs to one of the three test samples when tested in accordance with Clauses 19, 20 or 21, in which case the tests are repeated from Clause 16 onwards; or b) a failure occurs to one of the three test samples when tested in accordance with Clauses 22 or 23 (except 22.3), in which case the tests are repeated from Clause 18 onwards.
The applicant may submit, together with the first set of test samples, the additional set which may be wanted should one test sample fail. The testing station will then, without further request, test the additional test samples and will only reject if a further failure occurs. If the additional set of test samples is not submitted at the same time, a failure of one test sample will entail a rejection. 5.4 Routi
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