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CSA C22.2 NO. 62986:21 Plugs, socket-outlets and couplers with arcuate contacts (Adopted IEC 62986:2017, first edition, 2017-09, with Canadian deviations)
standard by CSA Group, 06/01/2021
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(IEC 62986:2017, MOD)
National Standard of Canada
(IEC 62986:2017, MOD)
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CSA C22.2 No. 62986:21
June 2021
Title: Plugs, socket-outlets and couplers with arcuate contacts
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IEC 62986:2017-09(en)
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
ICS 29.120.20
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® Registered trademark of the International Electrotechnical Commission
CONTENTS
FOREWORD 6
INTRODUCTION 8
Scope 9
Normative references 9
Terms and definitions 10
General 16
General requirements 16
General notes on tests 16
Standard ratings 17
Classification 18
According to purpose 18
According to the method of connecting the cable 18
Marking 18
Dimensions 20
Protection against electric shock 21
Provisions for earthing 21
Terminals and terminations 22
Common requirements for terminals and terminations 22
Screw type terminals 24
Mechanical tests on terminals 26
Resistance to ageing of rubber and thermoplastic material 28
General construction 29
Construction of socket-outlets 29
Construction of plugs and connectors 30
Construction of appliance inlets 31
Degrees of protection 31
Insulation resistance and dielectric strength 32
Breaking capacity 33
Normal operation 36
Temperature rise 37
Flexible cables and their connection 38
Cable anchorages 38
Requirements for plugs and connectors 38
Non-rewirable plugs and connectors 38
Rewirable plugs and connectors 38
Pull test 39
Mechanical strength 41
General 41
Impact test apparatus 42
Normal use 42
Test description 43
Socket-outlets and appliance inlets 44
Rewirable plugs and connectors 44
Non-rewirable plugs and connectors 45
Accessories with screwed glands 46
Plugs 46
General 46
Perpendicular stress test 47
Axial stress test 47
Tensile strength test 48
Blade retention (compression) test 48
Screws, current-carrying parts and connections 48
Creepage distances, clearances and distances through sealing compound 50
Resistance to heat 51
Resistance to fire and to tracking 52
Corrosion and resistance to rusting 54
Conditional short-circuit current withstand test 55
Short-circuit current 55
Ratings and test conditions 55
Test circuit 55
Calibration 58
Test procedure 58
Behaviour of the equipment under test 58
Acceptance conditions 59
Electromagnetic compatibility 59
Immunity 59
Emission 59
STANDARD SHEETS 60
STANDARD SHEET L5-20 125 V, 20 A, two-pole three-wire 62
STANDARD SHEET L5-30 125 V, 30 A, two-pole three-wire 63
STANDARD SHEET L25-30 240 V, 30 A, two-pole three-wire 64
STANDARD SHEET L6-20 250 V, 20 A, two-pole three-wire 65
STANDARD SHEET L6-30 250 V, 30 A, two-pole three-wire 66
STANDARD SHEET L7-20 277 V, 20 A, two-pole three-wire 67
STANDARD SHEET L7-30 277 V, 30 A, two-pole three-wire 68
STANDARD SHEET L24-20 347 V, 20 A, two-pole three-wire 69
STANDARD SHEET L8-20 480 V, 20 A, two-pole three-wire 70
STANDARD SHEET L8-30 480 V, 30 A, two-pole three-wire 71
STANDARD SHEET L9-20 600 V, 20 A, two-pole three-wire 72
STANDARD SHEET L9-30 600 V, 30 A, two-pole three-wire 73
STANDARD SHEET L14-20 125/250 V, 20 A, three-pole four-wire 74
STANDARD SHEET L14-30 125/250 V, 30 A, three-pole four-wire 75
STANDARD SHEET L15-20 250 V, 20 A, three-pole four-wire 76
STANDARD SHEET L15-30 250 V, 30 A, three-pole four-wire 77
STANDARD SHEET L16-20 480 V, 20 A, three-pole four-wire 78
STANDARD SHEET L16-30 480 V, 30 A, three-pole four-wire 79
STANDARD SHEET L17-30 600 V, 30 A, three-pole four-wire 80
STANDARD SHEET L21-20 120/208 V, 20 A, four-pole five-wire 81
STANDARD SHEET L21-30 120/208 V, 30 A, four-pole five-wire 82
STANDARD SHEET L26-30 240/415 V, 30 A, four-pole five-wire 83
STANDARD SHEET L22-20 277/480 V, 20 A, four-pole five-wire 84
STANDARD SHEET L22-30 277/480 V, 30 A, four-pole five-wire 85
STANDARD SHEET L23-20 347/600 V, 20 A, four-pole five-wire 86
STANDARD SHEET L23-30 347/600 V, 30 A, four-pole five-wire 87
Bibliography 88
Figure 1 – Diagram showing the uses of the accessories 11
Figure 2 – Pillar terminals 14
Figure 3 – Screw terminals 14
Figure 4 – Stud terminals 14
Figure 5 – Saddle terminals 15
Figure 6 – Mantle terminals 15
Figure 7 – Gauges for testing insertability of round unprepared conductors having the
maximum specified cross-section 25
Figure 8 – Flexing test arrangement 27
Figure 9 – Circuit diagrams for breaking capacity and normal operation tests 35
Figure 10 – Apparatus for testing the cable anchorage 40
Figure 11 – Impact test apparatus – Pendulum assembly 43
Figure 12 – Arrangement for mechanical strength test for plugs and connectors 45
Figure 13 – Apparatus for flexing test 46
Figure 14 – Arrangement for contact blade strength tests for plugs 47
Figure 15 – Ball-pressure apparatus 52
Figure 16 – Arrangement and dimensions of the electrodes for the tracking test 54
Figure 17 – Diagram of the test circuit for the verification of short-circuit current
withstand of a two-pole equipment on a single-phase AC 56
Figure 18 – Diagram of the test circuit for the verification of short-circuit current
withstand of a three-pole equipment 57
Figure 19 – Diagram of the test circuit for the verification of short-circuit current
withstand of a four-pole equipment 58
Table 1 – Standard ratings 17
Table 2 – Voltage colour code 20
Table 3 – Size for connectable conductors 22
Table 4 – Flexing under mechanical load testing for copper conductors 27
Table 5 – Pulling force 28
Table 6 – Voltage for dielectric strength test 33
Table 7 – Breaking capacity 35
Table 8 – Normal operation 37
Table 9 – Test current and nominal cross-sectional area 37
Table 10 – Cable type 38
Table 11 – Metric cables 40
Table 12 – AWG cables 41
Table 13 – Pulling force and torque test values 41
Table 14 – Impact force 45
Table 15 – Test force for glands 46
Table 16 – Torque values for terminal screws 49
Table 17 – Distances through sealing compound 51
Table 18 – Standard sheets 60
INTERNATIONAL ELECTROTECHNICAL COMMISSION
PLUGS, SOCKET-OUTLETS AND COUPLERS WITH ARCUATE CONTACTS
FOREWORD
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.
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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.
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 62986 has been prepared by subcommittee 23H: Plugs, socket- outlets and couplers for industrial and similar applications, and for electric vehicles, of IEC technical committee 23: Electrical accessories.
The text of this International Standard is based on the following documents:
FDIS | Report on voting |
23H/386/FDIS | 23H/387/RVD |
Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
In this standard, the following print types are used:
requirements: in roman type;
conformity statements: 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 "https://webstore.iec.ch" in the data related to the specific document. At this date, the document will be
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withdrawn,
replaced by a revised edition, or
amended.
A bilingual version of this publication may be issued at a later date.
INTRODUCTION
The object of this document is to provide for a safe, compact and practical IEC system of standardized plugs and socket-outlets with arcuate contacts. It contains performance and dimensional requirements taking into account essential differences in the infrastructures and installation rules throughout the world.
PLUGS, SOCKET-OUTLETS AND COUPLERS WITH ARCUATE CONTACTS
Scope
This document sets the general and dimensional interchangeability requirements for plugs, socket-outlets, connectors and appliance inlets with arcuate contacts of standardized configurations (hereinafter referred to as accessories), with a rated operating voltage not exceeding 600 V AC at a frequency of 50 Hz and 60 Hz and with rated currents of 20 A and 30 A, primarily intended for commercial use indoors, in conditions where the presence of water is negligible.
This document applies to accessories for use when the ambient temperature is normally within the range of –25 °C to +40 °C. These accessories are intended to be connected to cables of copper or copper alloy only.
Interchangeability requirements are defined for IP20 accessories.
NOTE The conditions of use indoors are based on the limitations given by IEC 60364-5-51:2005, Table 51A, AD1.
Socket-outlets or appliance inlets incorporated in or fixed to electrical equipment are within the scope of this document.
Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60227 (all parts), Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V
IEC 60228:2004, Conductors of insulated cables
IEC 60245-4, Rubber insulated cables – Rated voltages up to and including 450/750 V – Part 4: Cords and flexible cables
IEC 60269-1, Low-voltage fuses – Part 1: General requirements
IEC 60269-2, Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) – Examples of standardized systems of fuses A to K
IEC 60309-1:1999, Plugs, socket-outlets and couplers for industrial purposes – Part 1: General requirements
IEC 60309-1:1999/AMD1:2005
IEC 60309-1:1999/AMD2:2012
IEC 60417, Graphical symbols for use on equipment (available at https://www.graphical- symbols.info/equipment)
IEC 60529, Degrees of protection provided by enclosures (IP Code)