SIST EN 60352-4:2002
(Main)Solderless connections -- Part 4: Solderless non-accessible insulation displacement connections - General requirements, test methods and practical guidance
Solderless connections -- Part 4: Solderless non-accessible insulation displacement connections - General requirements, test methods and practical guidance
Is applicable to non-accessible ID connections which are made with: appropriately designed 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 section.
Lötfreie elektrische Verbindungen -- Teil 4: Lötfreie nichtzugängliche Schneidklemmverbindungen - Allgemeine Anforderungen, Prüfverfahren und Anwendungshinweise
Connexions sans soudure -- Partie 4: Connexions autodénudantes, non accessibles sans soudure - Règles générales, méthodes d'essai et guide pratique
S'applique aux connexions CAD qui sont non accessibles et qui sont composées de: - contacts CAD de conception appropriées; - fils à conducteur cylindrique massif de diamètre nominal 0,25 mm à 3,6 mm; - fils à conducteur divisé de section 0,05 mm2 à 10 mm2.
Solderless connections - Part 4: Solderless non-accessible insulation displacement connections - General requirements, test methods and practical guidance (IEC 60352-4:1994)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60352-4:2002
01-september-2002
Solderless connections - Part 4: Solderless non-accessible insulation
displacement connections - General requirements, test methods and practical
guidance (IEC 60352-4:1994)
Solderless connections -- Part 4: Solderless non-accessible insulation displacement
connections - General requirements, test methods and practical guidance
Lötfreie elektrische Verbindungen -- Teil 4: Lötfreie nichtzugängliche
Schneidklemmverbindungen - Allgemeine Anforderungen, Prüfverfahren und
Anwendungshinweise
Connexions sans soudure -- Partie 4: Connexions autodénudantes, non accessibles
sans soudure - Règles générales, méthodes d'essai et guide pratique
Ta slovenski standard je istoveten z: EN 60352-4:1994
ICS:
29.120.20 Spojni elementi Connecting devices
SIST EN 60352-4:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60352-4:2002
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SIST EN 60352-4:2002
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SIST EN 60352-4:2002
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SIST EN 60352-4:2002
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SIST EN 60352-4:2002
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SIST EN 60352-4:2002
CEI
NORME
IEC
INTERNATIONALE
352-4
INTERNATIONAL
Première édition
STANDARD
First edition
1994-08
Connexions sans soudure –
Partie 4:
Connexions autodénudantes, non accessibles
sans soudure –
Règles générales, méthodes d'essai et
guide pratique
Solderless connections –
Part 4:
Solderless non-accessible insulation
displacement connections –
General requirements, test methods
and practical guidance
© CEI 1994 Droits de reproduction réservés — Copyright — all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé Genève, Suisse
Commission Electrotechnique Internationale CODE PRIX , A'
International Electrotechnical Commission
PRICE CODE VV
MemnyHapopitaa 3neKrporexmoiecKae KOMKCCKa
IEC
Pour prix, voir catalogue en vigueur
• •
For price, see current catalogue
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SIST EN 60352-4:2002
352-4 © IEC:1994 – 3 –
CONTENTS
Page
FOREWORD 5
INTRODUCTION 9
SECTION 1: GENERAL
Clause
1 Scope 11
2 Object 11
3 Normative references 11
4 Definitions 15
5 IEC type designation 19
SECTION 2: REQUIREMENTS
21
6 Workmanship
21
7 Tools
21
8 Insulation displacement termination (ID termination)
9 Wires 23
10 Non-accessible insulation displacement connections (ID connections) 25
SECTION 3: TESTS
11 Testing 27
12 Type tests 29
13 Test schedules 45
SECTION 4: PRACTICAL GUIDANCE
14 Current-carrying capacity 63
15 Tool information 63
16 Termination information 63
17 Wire information 65
18 Connection information 67
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SIST EN 60352-4:2002
352-4 – 5 –
© IEC:1994
INTERNATIONAL ELECTROTECHNICAL COMMISSION
SOLDERLESS CONNECTIONS –
Part 4: Solderless non-accessible insulation
displacement connections –
General requirements, test methods and practical guidance
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
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. The 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 the IEC on technical matters, prepared by technical committees on
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
3) They have the form of recommendations for international use published in the form of standards, technical
reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
International Standard IEC 352-4 has been prepared by IEC sub-committee 48B: Con-
nectors, of IEC technical committee 48: Electromechanical components and mechanical
structures for electronic equipment.
The text of this standard is based on the following documents:
DIS Report on voting
48B(CO)251 48B(CO)256
Full information on the voting for the approval of this standard can be found in the report
on voting indicated in the above table.
IEC 352 consists of the following parts, under the general title: Solderless connections:
– Part 1: 1983, Solderless wrapped connections – General requirements, test
methods and practical guidance
– Part 2: 1990, Solderless crimped connections – General requirements, test methods
and practical guidance
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SIST EN 60352-4:2002
352-4 © IEC:1994 - 7 -
- Solderless accessible insulation displacement connections - General
Part 3: 1993,
requirements, test methods and practical guidance
- rt 4: 1994, Solderless non-accessible insulation displacement connections -
Pa
General requirements, test methods and practical guidance
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SIST EN 60352-4:2002
352-4 © IEC:1994 – 9 –
INTRODUCTION
The two following parts of IEC 352 are available on solderless insulation displacement
connections:
Part 3: Solderless accessible insulation displacement connections – General
–
requirements, test methods and practical guidance;
Part 4: Solderless non-accessible insulation displacement connections – General
–
requirements, test methods and practical guidance.
These parts include requirements, tests and practical guidance information.
Two test schedules are provided:
basic test schedule which applies to insulation displacement connections which
– the
of section 2 of this standard;
conform to all requirements
These requirements are derived from experience with successful applications of such
connections.
full which applies to insulation displacement connections which do
– the test schedule
section 2, for example which are manufactured
not fully conform to all requirements of
using materials or finishes not included in section 2.
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.
NOTE — In this standard the term "insulation displacement" is abbreviated to "ID", for example "ID connec-
tion", 'ID termination".
Non-accessible ID
Accessible ID
connection
connection
/EC 026/93
!EC 025/93
and non-accessible insulation
Figure 1 – Examples of accessible
displacement connections
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SIST EN 60352-4:2002
352-4 ©IEC:1994 — 11 —
SOLDERLESS CONNECTIONS –
Part 4: Solderless non-accessible insulation
displacement connections –
General requirements, test methods and practical guidance
Section 1: General
1 Scope
This part of IEC 352 is applicable to non-accessible ID connections for which the tests and
measurements of section 3 are suitable and which are made with:
appropriately designed ID terminations;
—
wires having solid round conductors of 0,25 mm to 3,6 mm nominal diameter;
—
2 to 10 mm 2 cross-section;
— wires having stranded conductors of 0,05 mm
for use in telecommunication equipment and in electronic devices employing similar
techniques.
Information on materials and data from industrial experience is included in addition to the
test procedures to provide electrically stable connections under prescribed environmental
conditions.
2 Object
The object of this part of IEC 352 is to:
determine the suitability of non-accessible ID connections under specified mech-
—
anical, electrical and atmospheric conditions;
— provide a means of comparing test results when the tools used to make the
connections are of different designs or manufacture.
There are different designs and materials for ID terminations in use. For this reason only
fundamental parameters of the termination are specified while the performance require-
ments of the wire and the complete connection are specified in full detail.
3 Normative references
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this part of IEC 352. At the time of publication, the editions
rties to
indicated were valid. All normative documents are subject to revision, and pa
agreements based on this part of IEC 352 are encouraged to investigate the possibility
of applying the most recent editions of the normative documents indicated below.
Members of IEC and ISO maintain registers of currently valid International Standards.
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SIST EN 60352-4:2002
352-4 ©IEC:1994 - 13 -
International Electrotechnical Vocabulary (IEV) - Chapter 581: Electro-
IEC 50 (581): 1978,
mechanical components for electronic equipment
1: General and guidance
IEC 68-1: 1988, Environmental testing - Pa rt
Environmental testing - Part 2: Tests - Test Ke: Corrosion tests
IEC 68-2-60 TTD: 1990,
in artificial atmosphere at very low concentration of polluting gas(es)
Low-frequency cables and wires with PVC insulation and PVC sheath -
IEC 189-3: 1988,
Part 3: Equipment wires with solid or stranded conductor, PVC insulated, in singles, pairs
and triples
Amendment 1 (1989)
Printed boards - Part 2: Test methods
IEC 326-2: 1990,
Amendment 1 (1992)
Solderless connections - Part 3: Solderless accessible insulation
IEC 352-3: 1993,
displacement connections - General requirements, tests methods and practical guidance
Electromechanical components for electronic equipment; basic testing
IEC 512-1: 1984,
procedures and measuring methods - Part 1: General
Amendment 1 (1988)
Electromechanical components for electronic equipment; basic testing
IEC 512-2: 1985,
2: General examination, electrical continuity
rt
procedures and measuring methods - Pa
and contact resistance tests, insulation tests and voltage stress tests
Electromechanical components for electronic equipment; basic testing
IEC 512-4: 1976,
4: Dynamic stress tests
procedures and measuring methods - Part
Electromechanical components for electronic equipment; basic testing
IEC 512-5: 1992,
procedures and measuring methods - Part 5: Impact tests (free components), static load
tests(fixed components), endurance tests and overload tests
IEC 512-6: 1984, Electromechanical components for electronic equipment; basic testing
rt 6: Climatic tests and soldering tests
procedures and measuring methods - Pa
IEC 673: 1980, Low-frequency miniature equipment wires with solid or stranded conductor,
fluorinated polyhydrocarbon type insulation, single
Amendment 3 (1989)
PVC insulated ribbon cable with a pitch of 1,27 mm suitable for insulation
IEC 918: 1987,
displacement termination
Metallic and oxide coatings - Measurement of coating thickness - Micro-
ISO 1463: 1982,
scopical method
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SIST EN 60352-4:2002
352-4 © IEC:1994 — 15 —
4 Definitions
of IEC 352 are included in
Terms and definitions used in and applicable to this pa rt
IEC 50(581). IEC 512-1 also contains some applicable terms and definitions.
For the purpose of this part of IEC 352, the following additional terms and definitions
apply.
4.1 Insulation displacement connection (ID connection)
A solderless electrical connection made by inserting a single wire into a precisely
controlled slot in a termination such that the sides of the slot displace the insulation and
deform the conductor of a solid wire or strands of stranded wire to produce a gas-tight
connection.
Ribbon cable with
stranded conductors
IEC 027/93
Figure 2 – Insulation displacement connections
Accessible insulation displacement connection (accessible ID connection)
4.1.1
(See IEC 352-3).
An ID connection in which it is possible to access test points for carrying out mechanical
tests (for example transverse extraction force) and electrical measurements (for example
contact resistance) without deactivation of any design feature intended to establish and/or
maintain the ID connection.
(non-accessible ID connection)
4.1.2 Non-accessible insulation displacement connection
An ID connection in which it is not possible to access test points for carrying out mech-
anical tests such as transverse extraction force and some electrical measurements (for
example contact resistance) without deactivation of any design feature intended to
establish and/or maintain the ID connection, mainly where the ID connection is enclosed in
a component.
4.2 Insulation displacement termination (ID termination)
A termination designed to accept a wire for the purpose of establishing an ID connection.
4.2.1 Reusable insulation displacement termination (reusable ID termination)
An ID termination that can be used more than once.
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SIST EN 60352-4:2002
352-4 ©IEC:1994 - 17 -
4.2.2 Non-reusable insulation displacement termination (non -reusable ID termination)
An ID termination that can only be used once.
4.3 Slot
Strain relief slot or second
connection slot
IEC 028193
Figure 3 - Slot
4.3.1 Connection slot
The specially shaped opening in an ID termination suitable to displace the insulation of a
wire and to ensure a gas-tight connection between the termination and the conductor(s) of
the wire.
In certain cases, a second connection slot is used to provide for a double connection.
4.3.2 Strain relief slot
The specially shaped opening in an ID termination suitable to grip the wire.
4.4 Beam
The specially shaped metallic part of an ID termination on each side of the slot.
Beams
Slot
ID termination
IEC 029193
Figure 4 - Beam
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SIST EN 60352-4:2002
352-4 ©IEC:1994 - 19 -
4.5 Apparent diameter (of a stranded conductor)
The diameter of the circumscribing circle of the bundle of strands.
4.6 Guiding block
A specially shaped part of a component, e.g. a connector, which guides/inserts the wire(s)
into the slot(s). Additionally it may provide for other mechanical features, for example
fixing. the wire(s) in correct position(s), strain relief of the ID connection(s), secondary
loading on the ID termination(s) or beams.
Guiding block
Ribbon cable or
single wires
ID termination
IEC 030193
Figure 5 - Guiding block
4.7 Wire insertion tool
A hand or power operated tool for producing an ID connection by inserting the wire(s) in a
controlled manner to a predetermined position into the slot(s).
4.8 Wire extraction tool
A device for extracting the wire(s) from the ID termination.
5 IEC type designation
Not applicable.
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SIST EN 60352-4:2002
IEC:1994 352-4 © - 21 -
Section 2: Requirements
6 Workmanship
The connections shall be processed in a careful and workmanlike manner in accordance
with good current practice.
7
Tools
Tools shall be used and inspected according to the instructions given by the manufacturer.
A tool shall be able to make uniformly reliable connections during its useful life.
A tool shall be designed and shall operate in such a manner that any damage to the ID
termination and/or to the wire is avoided.
A tool shall provide for a correct location of the wire in the slot.
Tools are evaluated by testing ID connections made with the tools to be evaluated.
A guiding block, which may be a part of a component, e.g. a connector, may be used in
combination with insertion tooling to insert the wire(s) or cable in the connection slot(s).
The inse rtion tool shall apply a suitable force to the guiding block. The design of the
guiding block should aid in alignment of the wire(s) or cable with the connection slot(s) so
as to provide for reliable ID connections.
displacement termination (ID termination)
8 Insulation
8.1 Materials
Suitable grades of copper alloy, such as copper-tin (bronze), copper-zinc (brass) or
beryllium copper shall be used.
NOTE – If copper-zinc is used, care should be taken regarding corrosion effects caused by stress.
8.2 Dimensions
The quality of an ID connection depends on the dimensions of the ID termination, particu-
larly of its slot and beams, together with the characteristics of the materials used.
The dimensions shall be chosen so as to be suitable for the wire or range of wires for
which the ID termination is designed. The suitability is verified by applying the test
schedule given in section 3.
8.3 Surface finishes
The contact area of the termination shall be plated with tin or tin-lead or with silver, gold,
palladium or their alloys. The surface shall be free of detrimental contamination or
corrosion.
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SIST EN 60352-4:2002
352-4 © IEC:1994 – 23 –
8.4 Design features
ID terminations may be distinguished according to reusability conditions and according to
the range of wire sizes that can be accommodated. This results in the following types:
–
reusable terminations, designed to be connected more than once and designed for
one specified nominal conductor diameter or cross-section;
–
reusable terminations, designed to be connected more than once and designed for
a specified range of conductor diameters or cross-sections;
– non-reusable terminations, designed to be connected once and designed for one
specified nominal conductor diameter or cross-section;
– non-reusable terminations, designed to be connected once and designed for a
specified range of conductor diameters or cross-sections.
The edges of the beams shall be smooth and free of burrs to avoid unintentional damage
to the conductor(s) or insulation.
9 Wires
Ribbon cables or single wires with solid round conductors or stranded conductors with
seven single strands shall be used.
NOTE – For further information on wires, see IEC 189-3 and IEC 673.
For information on PVC insulated ribbon cables, see IEC 918.
9.1 Materials
The conductor material shall be annealed copper. It shall have an elongation at break of
not less than 10 %.
9.2 Dimensions
Different ranges of wires shall be used:
mm2
– single solid round wires of 0,25 mm to 0,8 mm diameter (converted 0,049 to
0,5 mm2); or
– stranded wires of 0,075 mm2 to 0,5 mm2 cross-section.
9.3 Surface finishes
Solid round conductors shall be unplated or plated with tin, tin-lead or silver. Stranded
conductors shall have strands plated with tin, tin-lead or silver.
The conductor surface shall be free of contamination and corrosion.
9.4 Wire insulation
The detail specification of the ID termination shall specify the outside diameter of the wire
insulation that can be accommodated.
The insulation material shall be PVC or another material with properties compatible with
the insulation displacement process, i.e. the insulation material shall be capable of being
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SIST EN 60352-4:2002
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352-4 © IEC:1994
readily displaced by the inner edges of the beams without damaging the conductor. In
case of stranded conductors, the insulation shall, in addition, be capable of keeping the
strands in place so that they are not unduly displaced when making the ID connection.
For ribbon cables, the insulation between the conductors including any additional insula-
tion forming the ribbon shall additionally be capable of being readily penetrated by the tips
of the beams.
-accessible insulation displacement connections (ID connections)
10 Non
The combination of wire, termination and connection tool shall be compatible.
a)
When inserting the wire into the connection slot of the ID termination, the inner
b)
sides of the beams shall displace the wire insulation and deform:
- the diameter of a solid round conductor
or
the apparent diameter of a stranded conductor (i.e. the circumscribing circle of
-
the bundle of strands) and, in addition, the diameter of those strands which are in
contact with the beams
in order to produce a gas-tight connection.
The wire shall be correctly located in the connection slot of the ID termination as
c)
specified by the detail specification. There shall be a sufficient distance between the
termination and the wire end. The minimum value of that distance depends on the wire
used and shall be as specified by the detail specification.
Only one wire in one connection slot shall be used.
d)
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SIST EN 60352-4:2002
352-4 © IEC:1994 - 27 -
Section 3: Tests
11 Testing
11.1 Introduction
All tests are to be carried out with ID terminations and ID connections being in their
normal operating position, for example in their housing.
Where a termination is designed to accommodate more than one ID connection, each
connection shall be tested individually.
11.2 General
As explained in the introduction, there are two test schedules which shall be applied
according to the following conditions.
- ID connections which conform to all the requirements of section 2 shall be tested in
accordance with and meet the requirements of the basic test schedule given in 13.2.
- ID connections which do not fully conform to all the requirements of section 2, for
example which are made with different wire and/or termination sizes and/or materials,
or which are made with more than one wire in one connection slot, shall be tested and
meet the requirements of the full test schedule given in 13.3.
11.3 Standard conditions for testing
Unless otherwise specified, all tests shall be carried out under standard conditions for test-
ing as specified in IEC 512-1.
The ambient temperature and the relative humidity at which the measurements are made
shall be stated in the test report.
In case of dispute about test results, the test shall be repeated at one of the referee
conditions of IEC 68-1.
11.4 Preconditioning
Where specified, the connections shall be preconditioned under standard conditions for
testing for a period of 24 h, in accordance with IEC 512-1.
11.5 Recovery
Where specified, the specimen shall be allowed to recover under standard conditions for
testing for a period of 1 h to 2 h after conditioning.
11.6 Specimen
a) The test specimen shall consist of the component having one or a specified number
of non-accessible ID connections with one wire inserted in one connection slot of each
ID termination, unless otherwise specified by the detail specification. The wires
connected with a multipole component may be a ribbon cable or a number of single
wires (see figure 6).
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SIST EN 60352-4:2002
IEC:1994 -
352-4 © 29 -
b) When mounting is required in a test, the specimens shall be mounted using the
normal mounting method, unless otherwise specified.
12 Type tests
NOTE — As far as test methods are described in this clause, it is intended that the description be replaced
by a reference to IEC 512 as soon as the relevant test method is included in IEC 512.
12.1 General examination
The tests shall be carried out in accordance with test 1a: Visual examination, and test lb:
Examination of dimension and mass, of IEC 512-2. The visual examination test may be
carried out with magnification up to approximately five times.
s shall be examined to determine whether the requirements of clauses 8 to 10 have
All part
been met.
12.2 Mechanical tests
NOTE — Axial and transverse mechanical strength of wired terminations including the applicable strain
relief features is specified by the detail specification.
12.2.1 Bending of the cable/wire
The object of this test is to assess the ability of a non-accessible ID connection to with-
stand the mechanical stress caused by bending the connected wire or ribbon cable in a
specified manner.
The test specimen shall be securely held in such a position that the wire(s) or the ribbon
cable hangs along its (their) longitudinal axis in the connection slot(s). An axial load F
shall be applied to the free end(s) of the wire(s) or ribbon cable to keep it (them) straight.
The value of this load shall be:
5 % to 10 % of the breaking strength of the wire where single wires are to be tested;
-
- 10 N to 50 N where ribbon cables are to be tested. The applicable load depends
on the number of wires in the cable, the wire diameter, the type and/or material of the
insulation and shall be specified by the detail specification. The load shall be evenly
distributed over the whole cable.
rtical which consti-
The wire(s) or cable shall then be bent in both directions from the ve
tutes one cycle. Unless otherwise specified by the detail specification, the bending
angle a shall be 30°.
Other recommended bending angles for detail specifications are 60° and 90°.
Bending of the cable/wire shall be carried out using a suitable device, for example as
indicated in figure 6.
The number of cycles of the bending test shall be 10, unless otherwise specified by the
detail specification.
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SIST EN 60352-4:2002
352-4 ©IEC:1994 — 31 —
Where single wires connected with a multipole component are to be tested, the wire bend-
ing test shall be carried out with a number of wires (specimens) per component to be
specified by the detail specification (see also 13.1). The specimens are to be tested
sequentially or simultaneously as specified by the detail specification.
Contact disturbance shall be monitored during the full duration of the bending test in
accordance with test 2e: Contact disturbance, of IEC 512-2.
The limit of duration of contact disturbance shall be 1 µs unless otherwise specified by the
detail specification.
After testing, the termination(s) shall not be damaged and the conductor(s) shall not be
broken.
Driving plate for the
-- wire bending device
(swivelling)
Ribbon cable or
single wires
Driving plate pins
IEC 810,94
Figure 6 — Test arrangement, bending of the cable/wire
12.2.2 Vibration
The test shall be carried out in accordance with test 6d: Vibration, of IEC 512-4.
The test specimens shall be firmly held on a vibration table.
An example of a suitable test arrangement for testing a component containing non-
accessible ID connections is shown in figure 7.
Contact disturbance shall be monitored during the vibration test in accordance with
test 2e: Contact disturbance, of IEC 512-2.
The limit of duration of contact disturbance shall be 1 µs unless otherwise specified by the
detail specification.
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SIST EN 60352-4:2002
352-4 © IEC:1994 – 33 –
Component with
ID connections and
strain relief features
Wire(s) or
ribbon cable
Connection point
for electrical
measurement
Vibration table
Holding device
IEC 811/94
Figure 7 – Test arrangement, vibration
Table 1 – Vibration preferred test severities
10 to 500 10 to 2 000
Range of frequency, Hz 10 to 55
57 to 62 57 to 62
–
Cross-over frequency, Hz
Displacement amplitude below
1,5
0,35 0,35
the cross-over frequency, mm
Acceleration amplitude above
200 (20 g)
– 50 (5 g)
the cross-over frequency, m/s2
3 axes 3 axes
3 axes
Directions
5 5 5
Number of sweep cycles per direction
NOTE – The applicable test severity shall be specified by the detail specification.
ID terminations
Repeated connection and disconnection, reusable non-accessible
12.2.3
The object of this test is to assess the ability of a reusable non-accessible ID termination
to withstand a specified number of connections and disconnections.
Reusable non-accessible ID connections terminations may be partly or wholly dis-
assembled, in a manner as stated in the detail specification, to facilitate this test.
The specified wire shall be removed from and inserted into the termination as given below
or as modified by the detail specification. One removal and insertion shall be considered
to be one cycle.
The last cycle of a specified number of test cycles consists of only inserting the wire into
the termination, i.e. in any case there shall be a complete ID connection at the end of a
specified number of test cycles.
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SIST EN 60352-4:2002
352-4 © IEC:1994 – 35 –
The same reusable ID termination shall be used for the total number of test cycles
specified.
A new part of the wire or a new wire of the same type shall be used for each test cycle.
Where terminations are designed to accept a range of conductor sizes, all cycles except
the last one shall be carried out with the maximum conductor sizes specified. The
...
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