Switches for household and similar fixed-electrical installations - Part 1: General requirements

IEC 60669-1:2017 is also available as IEC 60669-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
This part of IEC 60669 applies to manually operated general purpose functional switches, for alternating current (AC) only with a rated voltage not exceeding 440 V with a rated current not exceeding 63 A, intended for household and similar fixed electrical installations, either indoors or outdoors.
For switches provided with screwless terminals, the rated current is limited to 16 A.
This fourth edition cancels and replaces the third edition published in 1998, Amendment 1:1999 and Amendment 2:2006. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) change of the scope for motor load switches;
b) deletion of some dated normative references;
c) changes to the definitions;
d) in Clause 5 the number of specimens to be used for the tests are clearly given in Table 1 (Corresponding Annex A of IEC 60669-1:1998 was therefore deleted);
e) in Clause 5 it was clarified on which switches the tests of Clause 19 shall be carried out;
f) requirements concerning 13 A switches have been included;
g) mandatory indication that a terminal is suitable for rigid conductor only;
h) requirements and test conditions for flexible conductors have been included in Clause 12;
i) requirements for pilot light units have been included;
j) new test for self-ballasted lamp loads in 19.3;
k) Table 20 has been completely redrawn to cover normal, mini and micro-gap switches and renumbered Table 21;
l) new informative Annex B including changes planned for the future in order to align IEC 60669-1 with the requirements of IEC 60998 (all parts), IEC 60999 (all parts) and IEC 60228;
m) new informative Annex C about the circuit development for 19.3;
n) new informative Annex D including additional requirements for insulation-piercing terminals;
o) new informative Annex E including additional requirements and tests for switches intended to be used at a temperature lower than -5 °C.
The contents of the corrigendum of January 2020 have been included in this copy.
Keywords: Home switches, fixed electrical installation

Interrupteurs pour installations électriques fixes domestiques et analogues - Partie 1: Exigences générales

IEC 60669-1:2017 est disponible sous forme de IEC 60669-1:2017 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
La présente partie de l'IEC 60669 s'applique aux interrupteurs fonctionnels pour courant alternatif seulement à commande manuelle pour usages courants, de tension assignée ne dépassant pas 440 V et de courant assigné ne dépassant pas 63 A, destinés aux installations électriques fixes domestiques et analogues soit intérieures soit extérieures.
Pour les interrupteurs équipés de bornes sans vis, le courant assigné est limité à 16 A.
Cette quatrième édition annule et remplace la troisième édition parue en 1998, l’Amendement 1:1999 et l’Amendement 2:2006. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) modification du domaine d’application concernant les interrupteurs pour charge moteur;
b) suppression de certaines références normatives datées;
c) modifications relatives aux définitions;
d) dans l’Article 5, le nombre d’échantillons à utiliser pour les essais est clairement indiqué dans le Tableau 1 (L’Annexe A correspondante de l’IEC 60669-1:1998 a donc été supprimée en conséquence);
e) dans l’Article 5, ajout de précisions concernant les interrupteurs sur lesquels les essais de l’Article 19 doivent être effectués;
f) ajout d’exigences relatives aux interrupteurs 13 A;
g) indication obligatoire signalant qu’une borne est adaptée pour un conducteur rigide uniquement;
h) ajout d’exigences et de conditions d’essai pour les conducteurs souples à l’Article 12;
i) ajout d’exigences relatives aux lampes indicatrices;
j) ajout d’un nouvel essai pour les charges par lampe à ballast intégré en 19.3;
k) Tableau 20 entièrement refait afin de couvrir les interrupteurs à distance normale d’ouverture des contacts, à faible distance d’ouverture des contacts et à microdistance d’ouverture des contacts et renuméroté Tableau 21;
l) ajout d’une nouvelle Annexe B informative comprenant les modifications prévues pour aligner l'IEC 60669-1 avec les exigences de l'IEC 60998 (toutes les parties), de l'IEC 60999 (toutes les parties) et de l'IEC 60228;
m) ajout d’une nouvelle Annexe C informative relative au développement du circuit pour 19.3;
n) ajout d’une nouvelle Annexe D informative comprenant des exigences complémentaires pour les bornes à perçage d'isolant;
o) ajout d’une nouvelle Annexe E informative comprenant des exigences et des essais supplémentaires pour les interrupteurs à utiliser à une température inférieure à −5 °C.
Le contenu du corrigendum de janvier 2020 a été pris en considération dans cet exemplaire.
Mots clés: interrupteur mural, interrupteurs muraux, installation électrique maison

General Information

Status
Published
Publication Date
21-Feb-2017
Current Stage
PPUB - Publication issued
Start Date
22-Feb-2017
Completion Date
22-Feb-2017
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IEC 60669-1
Edition 4.0 2017-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Switches for household and similar fixed electrical installations –
Part 1: General requirements
Interrupteurs pour installations électriques fixes domestiques et analogues –
Partie 1: Exigences générales
IEC 60669-1:2017-02(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60669-1
Edition 4.0 2017-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Switches for household and similar fixed electrical installations –
Part 1: General requirements
Interrupteurs pour installations électriques fixes domestiques et analogues –
Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.40 ISBN 978-2-8322-3901-8

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60669-1:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 7

1 Scope .............................................................................................................................. 9

2 Normative references .................................................................................................... 10

3 Terms and definitions .................................................................................................... 11

4 General requirements .................................................................................................... 16

5 General remarks on tests .............................................................................................. 16

6 Ratings .......................................................................................................................... 18

6.1 Rated voltage ....................................................................................................... 18

6.2 Rated current ........................................................................................................ 18

6.3 Preferred combinations of number of poles and ratings ......................................... 19

7 Classification ................................................................................................................. 20

8 Marking ......................................................................................................................... 21

8.1 General ................................................................................................................. 21

8.2 Symbols ................................................................................................................ 22

8.3 Visibility of markings ............................................................................................. 23

8.4 Marking on terminals for phase conductors ........................................................... 23

8.5 Marking on terminals for neutral and earth conductors .......................................... 24

8.6 Marking of the switch position ............................................................................... 24

8.7 Additional requirements for marking ...................................................................... 25

8.8 Durability .............................................................................................................. 25

9 Checking of dimensions ................................................................................................. 25

10 Protection against electric shock ................................................................................... 25

10.1 Prevention of access to live parts.......................................................................... 25

10.2 Requirements for operating parts .......................................................................... 26

10.3 Requirements for accessible metal parts ............................................................... 26

10.4 Requirements for insulation of the mechanism ...................................................... 27

10.5 Requirements for insulation of the mechanism with respect to the

surrounding environment ...................................................................................... 27

10.6 Requirements for switches operated indirectly ...................................................... 27

10.7 Requirements for switches with replaceable pull cord ........................................... 28

11 Provision for earthing .................................................................................................... 28

11.1 General ................................................................................................................. 28

11.2 Earthing terminals ................................................................................................. 28

11.3 Requirements for surface-type switches ................................................................ 28

11.4 Test for earthing connection .................................................................................. 28

12 Terminals ...................................................................................................................... 29

12.1 General ................................................................................................................. 29

12.2 Terminals with screw clamping for external copper conductors ............................. 29

12.3 Screwless terminals for external copper conductors .............................................. 35

13 Constructional requirements .......................................................................................... 40

13.1 Mechanical requirements for insulating means ...................................................... 40

13.2 Installation requirements ....................................................................................... 41

13.3 Fixing of covers, cover plates and actuating members .......................................... 42

13.4 Openings in normal use ........................................................................................ 43

13.5 Attachment of knobs ............................................................................................. 43

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IEC 60669-1:2017 © IEC 2017 – 3 –

13.6 Mounting means ................................................................................................... 44

13.7 Combination of switches ....................................................................................... 44

13.8 Accessories combined with switches ..................................................................... 44

13.9 Surface-type switches having an IP code higher than IP20 .................................. 44

13.10 Installation in a box ............................................................................................... 45

13.11 Connection of a second current-carrying conductor ............................................... 45

13.12 Inlet openings ....................................................................................................... 45

13.13 Provision for back entry from a conduit ................................................................. 46

13.14 Switch provided with membranes or the like for inlet openings .............................. 47

13.15 Requirements for membranes in inlet openings ..................................................... 47

13.16 Pilot light units ...................................................................................................... 48

14 Mechanism .................................................................................................................... 48

14.1 Indication of the position ....................................................................................... 48

14.2 Rest and intermediate position .............................................................................. 48

14.3 Undue arcing ........................................................................................................ 48

14.4 Making and breaking ............................................................................................. 48

14.5 Action of the mechanism without cover or cover plate ........................................... 48

14.6 Pull force for cord-operated switches .................................................................... 49

15 Resistance to ageing, protection provided by enclosures of switches and

resistance to humidity .................................................................................................... 49

15.1 Resistance to ageing ............................................................................................ 49

15.2 Protection provided by enclosures of switches ...................................................... 50

15.2.1 General ......................................................................................................... 50

15.2.2 Protection against access to hazardous parts and against harmful

effects due to ingress of solid foreign objects ................................................ 50

15.2.3 Protection against harmful effects due to ingress of water ............................. 51

15.3 Resistance to humidity .......................................................................................... 52

16 Insulation resistance and electric strength ..................................................................... 52

16.1 General ................................................................................................................. 52

16.2 Test for measuring the insulation resistance ......................................................... 52

16.3 Electric strength test ............................................................................................. 54

17 Temperature rise ........................................................................................................... 57

17.1 General ................................................................................................................. 57

17.2 Switches incorporating pilot lights ......................................................................... 58

18 Making and breaking capacity ........................................................................................ 59

18.1 General ................................................................................................................. 59

18.2 Overload ............................................................................................................... 59

18.3 Overload test with filament lamps ......................................................................... 61

19 Normal operation ........................................................................................................... 61

19.1 Test for switches intended for inductive loads ....................................................... 61

19.2 Test for switches intended for externally ballasted lamp loads .............................. 63

19.3 Test for switches intended for self ballasted lamp loads ........................................ 66

20 Mechanical strength ...................................................................................................... 69

20.1 General ................................................................................................................. 69

20.2 Pendulum hammer test ......................................................................................... 69

20.3 Test on the main parts of surface-type switches .................................................... 72

20.4 Screwed glands .................................................................................................... 72

20.5 Covers, cover plates or actuating members – accessibility to live parts ................. 72

---------------------- Page: 5 ----------------------
– 4 – IEC 60669-1:2017 © IEC 2017

20.5.1 General ......................................................................................................... 72

20.5.2 Verification of the non-removal of covers, cover plates or actuating

members ....................................................................................................... 73

20.5.3 Verification of the removal of covers, cover plates or actuating members....... 73

20.6 Covers, cover plates or actuating members – accessibility to non-earthed

metal parts separated from live parts .................................................................... 73

20.7 Covers, cover plates or actuating members – accessibility to insulating
parts, earthed metal parts, the live parts of SELV ≤ 25 V AC and 60 V DC or

metal parts separated from live parts .................................................................... 73

20.8 Covers, cover plates or actuating members – application of gauges ...................... 74

20.9 Grooves, holes and reverse tapers ....................................................................... 74

20.10 Additional test for cord-operated switch ................................................................ 74

21 Resistance to heat ......................................................................................................... 74

21.1 General ................................................................................................................. 74

21.2 Basic heating test ................................................................................................. 75

21.3 Ball-pressure test on parts of insulating material necessary to retain current-

carrying parts and parts of the earthing circuit in position ...................................... 75

21.4 Ball-pressure test on parts of insulating material not necessary to retain

current-carrying parts and parts of the earthing circuit in position.......................... 75

22 Screws, current-carrying parts and connections ............................................................. 76

22.1 General ................................................................................................................. 76

22.2 Correct insertion of screws ................................................................................... 76

22.3 Contact pressure of electrical connections ............................................................ 77

22.4 Screws and rivets used both as electrical and mechanical connections ................. 77

22.5 Material of current-carrying parts .......................................................................... 77

22.6 Contacts subjected to sliding actions .................................................................... 78

22.7 Thread-forming and thread-cutting screws ............................................................ 78

23 Creepage distances, clearances and distances through sealing compound .................... 78

23.1 General ................................................................................................................. 78

23.2 Insulating compound ............................................................................................. 81

24 Resistance of insulating material to abnormal heat, to fire and to tracking ..................... 81

24.1 Resistance to abnormal heat and to fire ................................................................ 81

24.2 Resistance to tracking ........................................................................................... 82

25 Resistance to rusting ..................................................................................................... 82

26 EMC requirements ......................................................................................................... 83

26.1 Immunity ............................................................................................................... 83

26.2 Emission ............................................................................................................... 83

Annex A (normative) Additional requirements for switches having facilities for the

outlet and retention of flexible cables .................................................................................. 103

Annex B (informative) Changes planned for the future in order to align IEC 60669-1

with the requirements of IEC 60998 (all parts), IEC 60999 (all parts) and IEC 60228 .......... 106

Annex C (informative) Circuit development (19.3) .............................................................. 123

C.1 Rationale ............................................................................................................ 123

C.2 I and I t for normal operation tests .............................................................. 123

peak

C.2.1 General ....................................................................................................... 123

C.2.2 Switching a single lamp ............................................................................... 123

C.2.3 Switching multiple lamps ............................................................................. 125

Annex D (informative) Additional requirements for insulation-piercing terminals ................. 127

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IEC 60669-1:2017 © IEC 2017 – 5 –

Annex E (informative) Additional requirements and tests for switches intended to be

used at a temperature lower than −5 °C .............................................................................. 137

Bibliography ........................................................................................................................ 139

Figure 1 – Pillar terminals ..................................................................................................... 84

Figure 2 – Screw head terminals and stud terminals ............................................................. 86

Figure 3 – Saddle terminals .................................................................................................. 86

Figure 4 – Lug terminals ....................................................................................................... 87

Figure 5 – Mantle terminals................................................................................................... 88

Figure 6 – Thread-forming screw .......................................................................................... 88

Figure 7 – Thread-cutting screw ............................................................................................ 88

Figure 8 – Classification according to connections ................................................................ 89

Figure 9 – Test apparatus for checking damage to conductors .............................................. 90

Figure 10 – Information for deflection test ............................................................................. 91

Figure 11 – Circuit diagrams for making and breaking capacity and normal operation ........... 92

Figure 12 – Circuit diagrams for testing switches .................................................................. 93

Figure 13 – Arrangement for test on cover-plates .................................................................. 93

Figure 14 – Gauge (thickness: about 2 mm) for the verification of the outline of covers,

cover-plates or actuating members ....................................................................................... 94

Figure 15 – Example of application of the gauge of Figure 14 on covers fixed without

screws on a mounting surface or supporting surface ............................................................. 95

Figure 16 – Examples of applications of the gauge of Figure 14 in accordance with the

requirements of 20.8 ............................................................................................................. 96

Figure 17 – Gauge for verification of grooves, holes and reverse tapers ............................... 97

Figure 18 – Sketch showing the direction of application of the gauge of Figure 17 ................ 97

Figure 19 – Ball-pressure apparatus ..................................................................................... 98

Figure 20 – Determining parts of insulating material to be tested – Diagrammatic

representation (see 24.1) ...................................................................................................... 98

Figure 21 – Test wall in accordance with the requirements of 15.2.3 ..................................... 99

Figure 22 – Direction for the conductor pull of 30 N for 1 min .............................................. 101

Figure 23 – Examples of membranes and grommets ........................................................... 102

Figure C.1 – 120 V 15 W (LT spice model) .......................................................................... 124

Figure C.2 – 230 V 15 W (LT spice model) .......................................................................... 125

Figure C.3 – Model for multiple lamp loads ......................................................................... 126

Figure C.4 – I and I t for multiple lamp loads .............................................................. 126

peak

Figure D.1 − Example of insulation-piercing terminals ......................................................... 135

Figure D.2 – Example of test-points .................................................................................... 135

Figure D.3 – Temperature cycle for the voltage drop test of 12.4.11 ................................... 136

Table 1 – Number of specimens needed for the tests ............................................................ 17

Table 2 – Relationship between rated current of the switch and rated power of the SBL

circuit .................................................................................................................................... 19

Table 3 – Preferred combinations of numbers of poles and ratings ....................................... 19

Table 4 – Relationship between rated currents and connectable cross-sectional areas

of copper conductors ............................................................................................................ 29

---------------------- Page: 7 ----------------------
– 6 – IEC 60669-1:2017 © IEC 2017

Table 5 – Tightening torque for the verification of the mechanical strength of screw-

type terminals ....................................................................................................................... 31

Table 6 – Test values for flexion and pull out for copper conductors ..................................... 32

Table 7 – Test values for pulling out test ............................................................................... 33

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

of copper conductors for screwless terminals ........................................................................ 35

Table 9 – Test current for the verification of electrical and thermal stresses in normal

use of screwless terminals .................................................................................................... 38

Table 10 – Cross-sectional areas of rigid copper conductors for deflection test of

screwless terminals .............................................................................................................. 40

Table 11 – Deflection test forces ........................................................................................... 40

Table 12 – Forces to be applied to covers, cover-plates or actuating members whose

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

...

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