CSA C22.2 No. 62986:21

(IEC 62986:2017, MOD)

National Standard of Canada

CSA C22.2 No. 62986:21

Plugs, socket-outlets and couplers with arcuate contacts

(IEC 62986:2017, MOD)

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  Standards Update Service

  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)

Plugs, socket-outlets and couplers with arcuate contacts

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Plugs, socket-outlets and couplers with arcuate contacts

INTERNATIONAL ELECTROTECHNICAL COMMISSION

ICS 29.120.20

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

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® Registered trademark of the International Electrotechnical Commission

CONTENTS

FOREWORD 6

INTRODUCTION 8

1. Scope 9

2. Normative references 9

3. Terms and definitions 10

4. General 16

   1. General requirements 16

   2. General notes on tests 16

5. Standard ratings 17

6. Classification 18

   1. According to purpose 18

   2. According to the method of connecting the cable 18

7. Marking 18

8. Dimensions 20

9. Protection against electric shock 21

10. Provisions for earthing 21

11. Terminals and terminations 22

    1. Common requirements for terminals and terminations 22

    2. Screw type terminals 24

    3. Mechanical tests on terminals 26

12. Resistance to ageing of rubber and thermoplastic material 28

13. General construction 29

14. Construction of socket-outlets 29

15. Construction of plugs and connectors 30

16. Construction of appliance inlets 31

17. Degrees of protection 31

18. Insulation resistance and dielectric strength 32

19. Breaking capacity 33

20. Normal operation 36

21. Temperature rise 37

22. Flexible cables and their connection 38

    1. Cable anchorages 38

    2. Requirements for plugs and connectors 38

       1. Non-rewirable plugs and connectors 38

       2. Rewirable plugs and connectors 38

    3. Pull test 39

23. Mechanical strength 41

    1. General 41

    2. Impact test apparatus 42

    3. Normal use 42

    4. Test description 43

    5. Socket-outlets and appliance inlets 44

    6. Rewirable plugs and connectors 44

    7. Non-rewirable plugs and connectors 45

    8. Accessories with screwed glands 46

    9. Plugs 46

       1. General 46

       2. Perpendicular stress test 47

       3. Axial stress test 47

       4. Tensile strength test 48

       5. Blade retention (compression) test 48

24. Screws, current-carrying parts and connections 48

25. Creepage distances, clearances and distances through sealing compound 50

26. Resistance to heat 51

27. Resistance to fire and to tracking 52

28. Corrosion and resistance to rusting 54

29. Conditional short-circuit current withstand test 55

    1. Short-circuit current 55

    2. Ratings and test conditions 55

    3. Test circuit 55

    4. Calibration 58

    5. Test procedure 58

    6. Behaviour of the equipment under test 58

    7. Acceptance conditions 59

30. Electromagnetic compatibility 59

    1. Immunity 59

    2. 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

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.

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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 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:

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

• reconfirmed,

• 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

1. 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.

   
   

2. 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)