EN IEC 61163-2:2020

SLOVENSKI STANDARD
01-julij-2020
Presejalno preskušanje glede zanesljivosti - 2. del: Sestavni deli (IEC 61163-
2:2020)
Reliability stress screening - Part 2: Components (IEC 61163-2:2020)
Zuverlässigkeitsvorbehandlung durch Beanspruchung - Teil 2: Bauelemente (IEC 61163-
2:2020)
Déverminage sous contraintes - Partie 2: Composants (IEC 61163-2:2020)
Ta slovenski standard je istoveten z: EN IEC 61163-2:2020
ICS:
03.120.01 Kakovost na splošno Quality in general
21.020 Značilnosti in načrtovanje Characteristics and design of
strojev, aparatov, opreme machines, apparatus,
equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61163-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2020
ICS 03.120.01; 31.020
English Version
Reliability stress screening - Part 2: Components
(IEC 61163-2:2020)
Déverminage sous contraintes - Partie 2: Composants Zuverlässigkeitsvorbehandlung durch Beanspruchung - Teil
(IEC 61163-2:2020) 2: Bauelemente
(IEC 61163-2:2020)
This European Standard was approved by CENELEC on 2020-04-15. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61163-2:2020 E

European foreword
The text of document 56/1875/FDIS, future edition 2 of IEC 61163-2, prepared by IEC/TC 56
"Dependability" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-15
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-15
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 61163-2:2020 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61163-1 NOTE Harmonized as EN 61163-1
IEC 62506 NOTE Harmonized as EN 62506
IEC 61014 NOTE Harmonized as EN 61014
IEC 62402 NOTE Harmonized as EN IEC 62402
IEC 62506 NOTE Harmonized as EN 62506
IEC 61709 NOTE Harmonized as EN 61709
IEC 61649 NOTE Harmonized as EN 61649
IEC 62740 NOTE Harmonized as EN 62740

IEC 61163-2 ®
Edition 2.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Reliability stress screening –

Part 2: Components
Déverminage sous contraintes –

Partie 2: Composants
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 03.120.01; 31.020 ISBN 978-2-8322-7910-6

– 2 – IEC 61163-2:2020 © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Description of reliability stress screening (RSS) . 8
5 Types of RSS . 10
5.1 General . 10
5.2 Constant stress screening . 10
5.3 Step stress screening . 10
5.4 Highly accelerated stress screening (HASS) . 10
6 Managing RSS . 11
6.1 Planning . 11
6.2 Termination of RSS . 12
7 Design of RSS . 12
7.1 General . 12
7.2 Physics of failure . 12
7.3 Common screening procedures . 13
7.4 Characteristics of a well-designed screening procedure . 14
7.5 Screening evaluation . 14
7.6 Selection of samples . 14
7.7 Setting the duration of RSS . 15
8 Managing an RSS programme . 15
8.1 Resources . 15
8.2 Monitoring during RSS . 16
9 Analysis for RSS . 16
9.1 General . 16
9.2 Cost benefit analysis . 16
9.3 Identifying early failures . 16
9.4 Analysis of the outputs of RSS . 17
Annex A (informative) Data analysis . 18
A.1 Symbols . 18
A.2 Weibull analysis . 18
A.3 Design of a reliability stress screening . 19
Annex B (informative) Examples of applications of reliability stress screening
processes . 23
B.1 General . 23
B.2 Transformers . 23
B.3 Connectors . 25
Bibliography . 28

Figure A.1 – Estimation of η and β . 18
Figure A.2 – Nomograph of the cumulative binomial distribution (Larson) . 20
Figure A.3 – Example of a Weibull plot . 21

IEC 61163-2:2020 © IEC 2020 – 3 –
Figure B.1 – Weibull plot of the bump screening . 25
Figure B.2 – Weibull plot of the pull test . 27

Table 1 – Common screening types and typical defect types precipitated by RSS . 13
Table A.1 – RSS test results . 21
Table A.2 – Screening results for weak populations . 22

– 4 – IEC 61163-2:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RELIABILITY STRESS SCREENING –

Part 2: Components
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.
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
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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 61163-2 has been prepared by IEC technical committee 56:
Dependability.
This second edition cancels and replaces the first edition published in 1998. This edition
consti
...