Solderless connections - Part 3: Accessible insulation displacement (ID) connections - General requirements, test methods and practical guidance

IEC 60352-3:2020 is applicable to ID connections which are accessible for tests and measurements according to Clauses 6 through 8 and which are made with:
– appropriately designed accessible ID terminations,
– wires having solid round conductors of 0,25 mm to 3,6 mm nominal diameter,
– wires having stranded conductors of 0,05 mm2 to 10 mm2 cross-sectional area,
for use in electrical and electronic equipment and components.
Information on materials and data from industrial experience is included in addition to the test procedures to provide electrically stable connections under prescribed environmen-tal conditions.
There are different designs and materials for accessible ID terminations in use. For this reason only fundamental parameters of the termination are specified, while the perfor-mance requirements of the wire and the complete connection are specified in full detail.
The purpose of this document is:
– to determine the suitability of accessible ID connections under specified mechanical, electrical and atmospheric conditions;
– to provide a means of comparing test results when the tools used to make the con-nections, if any, are of different designs or manufacture.
This second edition cancels and replaces the first edition published in 1993. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the pre-vious edition:
a) Subclause 7.2.2: reduce the limit of duration of contact disturbance to 1 µs.
b) Subclause 7.2.3: reduce the limit of duration of contact disturbance to 1 µs.
c) Transferred Clauses 9 to 13 to Annex A (informative).
d) The figures were revised for clarity.

Connexions sans soudure - Partie 3: Connexions autodénudantes accessibles - Règles générales, méthodes d'essai et guide pratique

IEC 60352-3:2020 est applicable aux connexions CAD qui sont accessibles pour les essais et les mesures conformes aux Articles 6 à 8 et qui sont composées de:
– contacts CAD accessibles de conception appropriée,
– fils à conducteurs cylindriques massifs de diamètre nominal 0,25 mm à 3,6 mm,
– fils à conducteurs divisés de section 0,05 mm2 à 10 mm2,
pour l’utilisation dans les équipements et composants électriques et électroniques.
Des informations sur les matières et des résultats dus à l’expérience industrielle y sont inclus en plus des méthodes d’essai pour assurer des connexions électriquement stables dans les conditions d’environnement prescrites.
Il y a différentes conceptions et matières utilisées pour les contacts CAD accessibles. C’est pourquoi seuls les paramètres fondamentaux du contact sont spécifiés, tandis que les exigences des performances du fil et de la connexion terminée sont définies dans tous les détails.
Le présent document a pour objet de:
– déterminer la conformité des connexions CAD accessibles dans des conditions méca-niques, électriques et atmosphériques spécifiées;
– fournir un moyen de comparaison des résultats d’essai quand les outils utilisés pour faire les connexions, le cas échéant, sont de conceptions ou de fabrications diffé-rentes.
Cette deuxième édition annule et remplace la première édition parue en 1993. Cette édi-tion constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édi-tion précédente:
a) Paragraphe 7.2.2: il réduit la limite de la durée de la perturbation de contact à 1 µs.
b) Paragraphe 7.2.3: il réduit la limite de la durée de la perturbation de contact à 1 µs.
c) Les Articles 9 à 13 ont été transférés à l’Annexe A (informative).
d) Les figures ont été révisées pour plus de clarté.

General Information

Status
Published
Publication Date
08-Apr-2020
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
09-Apr-2020
Ref Project

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IEC 60352-3
Edition 2.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Solderless connections –
Part 3: Accessible insulation displacement (ID) connections – General
requirements, test methods and practical guidance
Connexions sans soudure –
Partie 3: Connexions autodénudantes accessibles – Règles générales, méthodes
d’essai et guide pratique
IEC 60352-3:2020-04(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60352-3
Edition 2.0 2020-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Solderless connections –
Part 3: Accessible insulation displacement (ID) connections – General
requirements, test methods and practical guidance
Connexions sans soudure –
Partie 3: Connexions autodénudantes accessibles – Règles générales, méthodes
d’essai et guide pratique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.120.20 ISBN 978-2-8322-8086-7

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 60352-3:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

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

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

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

4 Workmanship ................................................................................................................. 13

5 Prerequisites for basic test schedule ............................................................................. 13

5.1 General ................................................................................................................. 13

5.2 Prerequisites for accessible ID terminations .......................................................... 14

5.2.1 Accessible ID termination materials ............................................................... 14

5.2.2 Accessible ID termination dimensions ............................................................ 14

5.2.3 Accessible ID termination surface finishes ..................................................... 14

5.2.4 Accessible ID termination design features ..................................................... 14

5.3 Prerequisites for wires and conductors.................................................................. 14

5.3.1 Wires and conductors .................................................................................... 14

5.3.2 Wire insulation ............................................................................................... 15

5.4 Accessible insulation displacement connections (accessible ID connections) ........ 15

6 Testing .......................................................................................................................... 15

6.1 Introduction ........................................................................................................... 15

6.2 General ................................................................................................................. 15

6.3 Standard conditions for testing .............................................................................. 16

6.4 Preconditioning ..................................................................................................... 16

6.5 Recovery .............................................................................................................. 16

6.6 Mounting of specimen ........................................................................................... 16

7 Tests ............................................................................................................................. 16

7.1 General examination ............................................................................................. 16

7.2 Mechanical tests ................................................................................................... 17

7.2.1 Transverse extraction force ........................................................................... 17

7.2.2 Bending of the wire ........................................................................................ 18

7.2.3 Vibration ........................................................................................................ 19

7.2.4 Repeated connection and disconnection, reusable accessible ID

terminations ................................................................................................... 20

7.3 Electrical tests ...................................................................................................... 20

7.3.1 General ......................................................................................................... 20

7.3.2 Contact resistance ......................................................................................... 21

7.3.3 Electrical load and temperature ..................................................................... 22

7.4 Climatic tests ........................................................................................................ 22

7.4.1 General ......................................................................................................... 22

7.4.2 Rapid change of temperature ......................................................................... 22

7.4.3 Climatic sequence ......................................................................................... 22

7.4.4 Flowing mixed gas corrosion test ................................................................... 22

7.4.5 Damp heat, cyclic .......................................................................................... 23

8 Test schedules .............................................................................................................. 23

8.1 General ................................................................................................................. 23

8.1.1 Overview ....................................................................................................... 23

---------------------- Page: 4 ----------------------
IEC 60352-3:2020 © IEC 2020 – 3 –

8.1.2 ID connections with terminations suitable for a range of wire diameters ......... 23

8.1.3 Multipole connectors ...................................................................................... 23

8.2 Basic test schedule ............................................................................................... 24

8.2.1 Généralités .................................................................................................... 24

8.2.2 Initial examination .......................................................................................... 24

8.2.3 Testing of accessible ID connections ............................................................. 24

8.3 Full test schedule .................................................................................................. 26

8.3.1 General ......................................................................................................... 26

8.3.2 Initial examination .......................................................................................... 26

8.3.3 Testing of accessible ID connections ............................................................. 26

8.4 Flow charts ........................................................................................................... 29

Annex A (informative) Practical guidance ............................................................................. 32

A.1 General information on accessible ID connections ................................................ 32

A.1.1 General ......................................................................................................... 32

A.1.2 Advantages of accessible ID connections ...................................................... 32

A.2 Current-carrying capacity ...................................................................................... 33

A.3 Tool information .................................................................................................... 33

A.3.1 Wire insertion tool .......................................................................................... 33

A.3.2 Wire extraction tool ........................................................................................ 33

A.3.3 Combination tool............................................................................................ 33

A.4 Termination information ........................................................................................ 33

A.4.1 General ......................................................................................................... 33

A.4.2 Design features ............................................................................................. 34

A.4.3 Materials ....................................................................................................... 34

A.4.4 Surface finishes ............................................................................................. 34

A.5 Wire information.................................................................................................... 34

A.5.1 Type .............................................................................................................. 34

A.5.2 Dimensions .................................................................................................... 34

A.5.3 Surface finishes ............................................................................................. 34

A.5.4 Insulation ....................................................................................................... 34

A.6 Connection information ......................................................................................... 35

Annex B (informative) Application examples ........................................................................ 37

B.1 Examples for good IDCs or negative results (see Figure B.1 to Figure B.7) ........... 37

B.2 Examples for good transversal micro section or negative results ........................... 39

Bibliography .......................................................................................................................... 40

Figure 1 – Example of accessible and non-accessible insulation displacement

connection .............................................................................................................................. 7

Figure 2 – Insulation displacement connection ...................................................................... 11

Figure 3 – Slot ...................................................................................................................... 12

Figure 4 – Beam ................................................................................................................... 13

Figure 5 – Test arrangement, transverse extraction force...................................................... 17

Figure 6 – Test arrangement, bending of the wire ................................................................. 18

Figure 7 – Test arrangement, vibration ................................................................................. 19

Figure 8 – Test arrangement, contact resistance ................................................................... 21

Figure 9 – Basic test schedule (see 8.2) ............................................................................... 30

Figure 10 – Full test schedule (see 8.3) ................................................................................ 31

---------------------- Page: 5 ----------------------
– 4 – IEC 60352-3:2020 © IEC 2020

Figure A.1 – Example of a single-type accessible ID termination with a solid round

conductor .............................................................................................................................. 36

Figure B.1 – Example of correct and acceptable ID connections ........................................... 37

Figure B.2 – Examples for good IDCs or negative results ...................................................... 37

Figure B.3 – Faulty IDC: damaged contacts .......................................................................... 38

Figure B.4 – Requirements for open-ended IDCs .................................................................. 38

Figure B.5 – Faulty IDC: damaged wire ................................................................................. 38

Figure B.6 – IDC: Wire position ............................................................................................. 39

Figure B.7 – IDC: transversal micro section .......................................................................... 39

Table 1 – Minimum transverse extraction force ..................................................................... 18

Table 2 – Vibration, preferred test severities ......................................................................... 19

Table 3 – Contact resistance of accessible ID connections, maximum permitted values ........ 21

Table 4 – Number of specimens required .............................................................................. 24

Table 5 – Qualification test schedule – Test group 1 ............................................................. 25

Table 6 – Qualification test schedule – Test group 2 ............................................................. 25

Table 7 – Qualification test schedule – Test group 3 ............................................................. 26

Table 8 – Qualification test schedule – Test group A ............................................................. 27

Table 9 – Qualification test schedule – Test group B ............................................................. 27

Table 10 – Qualification test schedule – Test group C .......................................................... 28

Table 11 – Qualification test schedule – Test group D .......................................................... 29

Table 12 – Qualification test schedule – Test group E ........................................................... 29

---------------------- Page: 6 ----------------------
IEC 60352-3:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SOLDERLESS CONNECTIONS –
Part 3: Accessible insulation displacement (ID) connections –
General requirements, test methods and practical guidance
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 interna-

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tional 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 inter-

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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

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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.

International Standard IEC 60352-3 has been prepared by subcommittee 48B: Electrical

connectors, of IEC technical committee 48: Electrical connectors and mechanical structures

for electrical and electronic equipment.

This second edition cancels and replaces the first edition published in 1993. This edition con-

stitutes a technical revision.

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

edition:
a) Subclause 7.2.2: reduce the limit of duration of contact disturbance to 1 µs.
b) Subclause 7.2.3: reduce the limit of duration of contact disturbance to 1 µs.
c) Transferred Clauses 9 to 13 to Annex A (informative).
d) The figures were revised for clarity.
---------------------- Page: 7 ----------------------
– 6 – IEC 60352-3:2020 © IEC 2020
The text of this International Standard is based on the following documents:
FDIS Report on voting
48B/2789/FDIS 48B/2802/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.

A list of all parts in the IEC 60352 series, published under the general title Solderless connec-

tions, can be found on the IEC website.

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.
---------------------- Page: 8 ----------------------
IEC 60352-3:2020 © IEC 2020 – 7 –
INTRODUCTION

The two following parts of IEC 60352 are available on solderless insulation displacement con-

nections:

– Part 3: Accessible insulation displacement connections – General requirements, test

methods and practical guidance;

– Part 4: Solderless non-accessible insulation displacement connections – General require-

ments, test methods and practical guidance.

NOTE In this document the term "insulation displacement" is abbreviated to "ID", for example "ID connection", "ID

termination".

Figure 1 illustrates examples of accessible and non-accessible insulation displacement con-

nections that clarify the difference among them.

Part 3 includes requirements and relevant tests (normative) as well as a practical guidance in

Annex A (informative) for accessible ID connections.
Two test schedules are provided:

– the basic test schedule which applies to insulation displacement connections which con-

form to all prerequisites of Clause 5. It is derived from experience with successful applica-

tions of such connections;

– the full test schedule which applies to insulation displacement connections which do not

fully conform to all prerequisites of Clause 5, for example which are manufactured using

materials or finishes not included in Clause 5.

This philosophy permits cost and time effective performance verification using a limited basic

test schedule for established insulation displacement connections and an expanded full test

schedule for connections requiring more extensive performance validation.

The suitability of the accessible ID connection implies that the specified requirements and

tests apply to all factors involved in producing a suitable ID connection, namely:

– the accessible ID termination, which may be part of a single-pole or multipole connector;

– the wire (or range of wires) for which the termination is suitable;
– the tools (if any) required to produce that type of solderless connection.

The practical guidance (informative Annex A) serves as a guideline for the required workman-

ship. Attention is drawn to the fact that some industries (e.g. automotive, aerospace, nuclear,

military) may have specific workmanship standards and/or quality requirements, which are

outside the scope of this standard.
Figure 1 – Example of accessible and non-accessible
insulation displacement connection
---------------------- Page: 9 ----------------------
– 8 – IEC 60352-3:2020 © IEC 2020

IEC Guide 109 advocates the need to minimise the impact of a product on the natural

environment throughout the product life cycle.

It is understood that some of the materials permitted in this document may have a negative

environmental impact.

As technological advances lead to acceptable alternatives for these materials, they will be

eliminated from the document.
---------------------- Page: 10 ----------------------
IEC 60352-3:2020 © IEC 2020 – 9 –
SOLDERLESS CONNECTIONS –
Part 3: Accessible insulation displacement (ID) connections –
General requirements, test methods and practical guidance
1 Scope

This part of IEC 60352 is applicable to ID connections which are accessible for tests and

measurements according to Clauses 6 through 8 and which are made with:
– appropriately designed accessible ID terminations,
– wires having solid round conductors of 0,25 mm to 3,6 mm nominal diameter,
2 2
– wires having stranded conductors of 0,05 mm to 10 mm cross-sectional area,
for use in electrical and electronic equipment and components.

Information on materials and data from industrial experience is included in addition to the test

procedures to provide electrically stable connections under prescribed environmental condi-

tions.

There are different designs and materials for accessible ID terminations in use. For this rea-

son only fundamental parameters of the termination are specified, while the performance re-

quirements of the wire and the complete connection are specified in full detail.
The purpose of this document is:

– to determine the suitability of accessible ID connections under specified mechanical, elec-

trical and atmospheric conditions;

– to provide a means of comparing test results when the tools used to make the connec-

tions, if any, are of different designs or manufacture.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their con-

tent 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 60068-1, Environmental testing – Part 1: General and guidance
IEC 60228, Conductors of insulated cabl
...

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