Plugs and socket-outlets for household and similar purposes - Part 1: General requirements

IEC 60884-1:2022 applies to plugs and fixed or portable socket-outlets for AC only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors.
Compatible plugs and socket-outlets, when combined, form a plug and socket-outlet system. Standardized systems used around the world are reported in IEC/TR 60083.
The rated current is limited to 16 A maximum for accessories provided with screwless-type terminals.
This fourth edition cancels and replaces the third edition published in 2002, Amendment 1:2006 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:  
plugs and socket-outlets incorporating pilot lights;
crimped connections in accessories;
insulation piercing terminals (IPT);
accessories to be used with American Wire Gauge (AWG) cables;
accessories used in T° below −5 °C down to and including −45 °C;
accessories used in T° above +40 °C up to and including +70 °C;
plugs and socket-outlets for high load (HL);
clarification of some definitions;
durability of markings test;
introduction of thermal monitoring in the plug;
requirements for shutters in portable socket-outlets;
test walls for the verification of ingress of water;
rewriting of the temperature rise clause.

General Information

Status
Published
Publication Date
03-Aug-2022
Current Stage
PPUB - Publication issued
Completion Date
04-Aug-2022
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IEC 60884-1
Edition 4.0 2022-08
INTERNATIONAL
STANDARD
colour
inside
Plugs and socket-outlets for household and similar purposes –
Part 1: General requirements
IEC 60884-1:2022-08(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60884-1
Edition 4.0 2022-08
INTERNATIONAL
STANDARD
colour
inside
Plugs and socket-outlets for household and similar purposes –
Part 1: General requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.30 ISBN 978-2-8322-3990-2

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC 60884-1:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 6

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

4 General requirements .................................................................................................... 18

5 General remarks on tests .............................................................................................. 18

6 Ratings .......................................................................................................................... 20

7 Classification ................................................................................................................. 21

8 Marking ......................................................................................................................... 23

9 Checking of dimensions ................................................................................................. 27

10 Protection against electric shock ................................................................................... 29

11 Provision for earthing .................................................................................................... 35

12 Terminals and terminations ............................................................................................ 37

13 Construction of fixed socket-outlets ............................................................................... 57

14 Construction of plugs and portable socket-outlets .......................................................... 68

15 Interlocked socket-outlets .............................................................................................. 76

16 Resistance to ageing, protection provided by enclosures, and resistance to

humidity ......................................................................................................................... 77

17 Insulation resistance and electric strength ..................................................................... 84

18 Operation of earthing contacts ....................................................................................... 85

19 Temperature rise ........................................................................................................... 85

20 Breaking capacity .......................................................................................................... 94

21 Normal operation ........................................................................................................... 98

22 Force necessary to withdraw the plug .......................................................................... 102

23 Flexible cables and their connection ............................................................................ 107

24 Mechanical strength .................................................................................................... 114

25 Resistance to heat ....................................................................................................... 133

26 Screws, current-carrying parts and connections ........................................................... 136

27 Creepage distances, clearances and distances through sealing compound .................. 138

28 Resistance of insulating material to abnormal heat, to fire and to tracking ................... 140

29 Resistance to rusting ................................................................................................... 145

30 Additional tests on pins provided with insulating sleeves ............................................. 145

31 EMC requirements ....................................................................................................... 147

32 Electromagnetic fields (EMF) requirements .................................................................. 148

Annex A (normative) Safety-related routine tests for factory-wired portable

accessories (protection against electric shock and correct polarity) .................................... 149

Annex B (informative) Alternative gripping tests ................................................................. 151

Annex C (normative) Switches incorporated in portable socket-outlets ............................... 154

Annex D (normative) Requirements for plugs and fixed or portable socket-outlets

intended to be used with AWG cables ................................................................................. 155

Annex E (informative) Tests to be applied during the production of crimped

connections in accessories ................................................................................................. 168

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IEC 60884-1:2022 © IEC 2022 – 3 –

Annex F (normative) Additional requirements for accessories provided with insulation-

piercing terminals ............................................................................................................... 170

Annex G (informative) Additional tests and requirements for accessories intended to

be used in ambient temperatures below −5 °C down to and including −45 °C ...................... 180

Annex H (informative) Additional tests and requirements for accessories intended to

be used in ambient temperatures above +40 °C up to and including +70 °C ........................ 185

Annex I (normative) Additional requirements and tests for plugs and socket-outlets for

high-load (HL) application ................................................................................................... 188

Bibliography ........................................................................................................................ 195

Figure 1 – Examples of accessories ...................................................................................... 11

Figure 2 – Example of thread-forming screw ......................................................................... 14

Figure 3 – Example of thread-cutting screw .......................................................................... 14

Figure 4 – Examples of membranes and grommets ............................................................... 16

Figure 5 – Test piston dimensions......................................................................................... 27

Figure 6 – Arrangement for compression test ........................................................................ 30

Figure 7 – Gauge for checking non-accessibility of live parts, through shutters ..................... 33

Figure 8 – Gauge for checking non-accessibility of live parts, through shutters, and of

live parts of socket-outlets with increased protection............................................................. 34

Figure 9 – Pillar terminals ..................................................................................................... 40

Figure 10 – Screw head terminals and stud terminals ........................................................... 42

Figure 11 – Saddle terminals ................................................................................................ 42

Figure 12 – Mantle terminals ................................................................................................. 43

Figure 13 – Arrangement for checking damage to conductors ............................................... 44

Figure 14 – Information for deflection test ............................................................................. 55

Figure 15 – Verification of the requirements of 13.4 .............................................................. 61

Figure 16 – Device for checking the resistance to lateral strain ............................................. 65

Figure 17 – Device for testing pins which are not solid .......................................................... 69

Figure 18 – Types of test wall ............................................................................................... 81

Figure 19 – Test set-up in accordance with 16.2.3 ................................................................ 82

Figure 20 – Clamping unit for the temperature rise test of Clause 19 .................................... 89

Figure 21 – Example of a trend line calculation ..................................................................... 94

Figure 22 – Example of apparatus for breaking capacity and normal operation test ............... 96

Figure 23 – Circuit diagrams for breaking capacity and normal operation tests ..................... 97

Figure 24 – Test procedures for normal operation for socket-outlets with shutters (see

Clause 21) .......................................................................................................................... 101

Figure 25 – Apparatus for verification of maximum withdrawal force ................................... 104

Figure 26 – Gauge for the verification of minimum withdrawal force .................................... 105

Figure 27 – Apparatus for testing cord retention.................................................................. 108

Figure 28 – Apparatus for flexing test ................................................................................. 113

Figure 29 – Sketches showing the application of the blows according to Table 23............... 118

Figure 30 – Apparatus for impact test at low temperature of 24.5 ........................................ 121

Figure 31 – Apparatus for abrasion test on insulating sleeves of plug pins .......................... 122

Figure 32 – Arrangement for mechanical strength test on multiple portable socket-

outlets ................................................................................................................................ 124

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– 4 – IEC 60884-1:2022 © IEC 2022

Figure 33 – Example of test arrangement to verify the retention of pins in the body of

the plug .............................................................................................................................. 125

Figure 34 – Arrangement for test on covers or cover-plates ................................................ 128

Figure 35 – Gauge (thickness about 2 mm) for the verification of the outline of covers

or cover-plates .................................................................................................................... 129

Figure 36 – Examples of application of the gauge of Figure 35 on covers fixed without

screws on a mounting surface or supporting surface ........................................................... 130

Figure 37 – Examples of application of the gauge of Figure 35 in accordance with the

requirements of 24.16 ......................................................................................................... 131

Figure 38 – Gauge for verification of grooves, holes and reverse tapers ............................. 132

Figure 39 – Sketch showing the direction of application of the gauge of Figure 38 .............. 132

Figure 40 – Ball pressure test apparatus ............................................................................. 134

Figure 41 – Apparatus for compression test for the verification of resistance to

heat specification of 25.5 .................................................................................................... 135

Figure 42 – Diagrammatic representation of 28.1.2 ............................................................. 142

Figure 43 – Apparatus for testing resistance to abnormal heat of insulating sleeves of

plug pins ............................................................................................................................. 144

Figure 44 – Apparatus for pressure test at high temperature ............................................... 146

Figure 45 – Impact test apparatus on pins provided with insulating sleeves ........................ 147

Figure B.1 – Reference plug for gripping test ...................................................................... 152

Figure B.2 – Example of the test apparatus for plug gripping test ........................................ 153

Figure F.1 – Example of IPTs .............................................................................................. 178

Figure F.2 – Example of test-points .................................................................................... 178

Figure F.3 – Temperature cycle for voltage drop test 12.4.11 .............................................. 179

Figure H.1 – Schematic drawing of a de-rating curve with an example of a de-rated

current I at the operating ambient temperature t .............................................................. 186

d d

Table 1 – Survey of specimens needed for tests ................................................................... 19

Table 2 – Preferred combinations of types and ratings .......................................................... 21

Table 3 – Gauge tolerances .................................................................................................. 28

Table 4 – Relationship between rated current and connectable nominal cross-sectional

areas of copper conductors ................................................................................................... 38

Table 5 – Values for pull test for screw-type terminals .......................................................... 45

Table 6 – Composition of conductors .................................................................................... 46

Table 7 – Tightening torques for the verification of the mechanical strength of screw-

type terminals ....................................................................................................................... 48

Table 8 – Relationship between rated current and connectable cross-sectional areas of

copper conductors for screwless-type terminals .................................................................... 49

Table 9 – Value for pull test for screwless-type-type terminals .............................................. 51

Table 10 – Values for flexing under mechanical load test for copper conductors ................... 52

Table 11 – Test current for the verification of electrical and thermal stresses in normal

use for screwless-type terminals ........................................................................................... 52

Table 12 – Nominal cross-sectional areas of rigid copper conductors for deflection test

of screwless-type terminals ................................................................................................... 55

Table 13 – Deflection test forces for screwless-type terminals .............................................. 56

Table 14 – Forces to be applied to covers, cover-plates or actuating members whose

fixing is not dependent on screws ......................................................................................... 63

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IEC 60884-1:2022 © IEC 2022 – 5 –

Table 15 – External cable dimension limits for surface-type socket-outlets ........................... 67

Table 16 – Nominal cross-sectional areas of copper conductors for the temperature-

rise test ................................................................................................................................ 86

Table 17 – Test current for cycling tests on accessories with crimped connection ................. 93

Table 18 – Relationship between rating of accessories, nominal cross-sectional areas

of test conductors and test currents for the tests of temperature rise (Clause 19) and

normal operation (Clause 21) ................................................................................................ 99

Table 19 – Maximum and minimum withdrawal force for plugs and socket-outlets ............... 106

Table 20 – External dimensions of flexible cables to be accommodated by cord

anchorages ......................................................................................................................... 109

Table 21 – Torque test values for cord anchorages ............................................................. 110

Table 22 – Maximum dimensions of flexible cables to be accommodated in rewirable

accessories ........................................................................................................................ 111

Table 23 – Height of fall for impact tests ............................................................................. 116

Table 24 – Torque test values for cable glands ................................................................... 122

Table 25 – Resistance to heat of different types or parts of accessories ............................. 133

Table 26 – Creepage distances, clearances and distances through insulating sealing

compound ........................................................................................................................... 139

Table A.1 – Diagrammatic representation of routine tests to be applied to factory-wired

portable accessories ........................................................................................................... 150

Table F.1 – Relationship between rated currents and connectable cross-sectional

areas of copper conductors for IPTs ................................................................................... 173

Table F.2 – Test current for the verification of electrical and thermal stresses in normal

use of IPTs ......................................................................................................................... 177

Table G.1 – Energy for impact tests .................................................................................... 183

Table I.1 – Test current for cycling tests on plugs ............................................................... 192

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– 6 – IEC 60884-1:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLUGS AND SOCKET-OUTLETS FOR
HOUSEHOLD AND SIMILAR 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,

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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

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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

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misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

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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

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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

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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.

IEC 60884-1 has been prepared by subcommittee 23B: Plugs, socket-outlets and switches, of

IEC technical committee 23: Electrical accessories. It is an International Standard.

This fourth edition cancels and replaces the third edition published in 2002, Amendment 1:2006

and Amendment 2:2013. This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) plugs and socket-outlets incorporating pilot lights;
b) crimped connections in accessories;
c) insulation piercing terminals (IPT);
d) accessories to be used with American Wire Gauge (AWG) cables;
e) accessories used in T° below −5 °C down to and including −45 °C;
f) accessories used in T° above +40 °C up to and including +70 °C;
---------------------- Page: 8 ----------------------
IEC 60884-1:2022 © IEC 2022 – 7 –
g) plugs and socket-outlets for high load (HL);
h) clarification of some definitions;
i) durability of markings test;
j) introduction of thermal monitoring in the plug;
k) requirements for shutters in portable socket-outlets;
l) test walls for the verification of ingress of water;
m) rewriting of the temperature rise clause.
The text of this International Standard is based on the following documents:
Draft Report on voting
23B/1386/FDIS 23B/1400/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.

A list of all parts in the IEC 60884 series, published under the general title Plugs and

socket-outlets for household and similar purposes, can be found on the IEC website.

The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 9 ----------------------
– 8 – IEC 60884-1:2022 © IEC 2022
PLUGS AND SOCKET-OUTLETS FOR
HOUSEHOLD AND SIMILAR PURPOSES –
Part 1: General requirements
1 Scope

This part of IEC 60884 applies to plugs and fixed or portable socket-outlets for AC only, with or

without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a

rated current not exceeding 32 A, intended for household and similar purposes, either indoors

or outdoors.

Compatible plugs and socket-outlets, when combined, form a plug and socket-outlet system.

Standardized systems used around the world are reported in IEC/TR 60083.

The rated current is limited to 16 A maximum for accessories provided with screwless-type

terminals.

This document covers only those requirements for mounting boxes which are necessary for the

tests on the socket-outlet.
NOTE 1 Requirements for general purpose mounting boxes are given in IEC 60670-1.
This document also applies to:
– plugs which are a part of cord sets;
– plugs and portable socket-outlets which are a part of cord extension sets;

– plugs and socket-outlets which are a component of an appliance, unless otherwise stated

in the standard for the relevant appliance; and
– plugs and socket-outlets incorporating pilot lights.
This document does not apply to:
– plugs, socket-outlets and couplers for industrial purposes;
– appliance couplers;
– plugs, fixed and portable socket-outlets for extra low voltage (ELV);
NOTE 2 ELV values are specified in IEC 60364-4-41.
– fixed socket-outlets combined with fuses, automatic switches, etc.
Plugs of this document are intended to be energised by socket-outlets.

NOTE 3 Use in any other manner could result in unsafe conditions within the installation if proper precautions are

not taken. When energy producing equipment is connected to the fixed installation via plugs of this document all

safety aspects of the products a
...

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