IEC 62884-3:2018
(Main)Measurement techniques of piezoelectric, dielectric and electrostatic oscillators - Part 3: Frequency aging test methods
Measurement techniques of piezoelectric, dielectric and electrostatic oscillators - Part 3: Frequency aging test methods
IEC 62884-3:2018 describes the methods for the measurement and evaluation of frequency aging tests of piezoelectric, dielectric and electrostatic oscillators, including Dielectric Resonator Oscillators (DRO) and oscillators using FBAR (hereinafter referred to as "Oscillator"). The purpose of those tests is to provide statistical data supporting aging predictions.
This document was developed from the works related to IEC 60679-1:2007 (third edition), the measurement techniques of which were restructured into different parts under a new project reference. This document describes the measurement method for frequency aging only.
Techniques de mesure des oscillateurs piézoélectriques, diélectriques et électrostatiques - Partie 3: Méthode d’essai du vieillissement en fréquence
l'IEC 62884-3:2018 décrit les méthodes de mesure et d'évaluation des essais du vieillissement en fréquence des oscillateurs piézoélectriques, diélectriques et électrostatiques, y compris les oscillateurs à résonateurs diélectriques et les oscillateurs à résonateurs à ondes acoustiques de volume à couches (appelés ci-après "oscillateurs"). Ces essais ont pour but de fournir des données statistiques à l'appui des prédictions du vieillissement.
Le présent document a été développé à partir des travaux de l'IEC 60679-1:2007 (troisième édition), dont les techniques de mesure ont été restructurées en différentes parties sous une nouvelle référence de projet. Le présent document décrit la méthode de mesure du vieillissement en fréquence uniquement.
Electrical accessories - Harmonization of general rules
General Information
Standards Content (Sample)
IEC 62884-3 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
Measurement techniques of piezoelectric, dielectric and electrostatic
oscillators –
Part 3: Frequency aging test methods
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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IEC 62884-3 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
Measurement techniques of piezoelectric, dielectric and electrostatic
oscillators –
Part 3: Frequency aging test methods
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.140 ISBN 978-2-8322-5494-3
– 2 – IEC 62884-3:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions, units and symbols . 6
3.1 Terms and definitions . 6
3.2 Units and symbols. 7
4 Frequency aging test . 7
4.1 General . 7
4.2 Test and measurement conditions . 7
4.2.1 General . 7
4.2.2 Active aging test (non-destructive) . 7
4.2.3 Data fitting . 8
4.2.4 Accelerated aging (non-active) . 9
4.2.5 Extended aging . 10
Annex A (normative) Experimental verification of the frequency aging performance . 11
Bibliography . 13
Table 1 – Measurement parameters depending on the oscillator type . 8
Table 2 – Time acceleration factors for E = 0,38 eV . 10
a
Table A.1 – Procedure for the determination of the frequency aging parameters . 12
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MEASUREMENT TECHNIQUES OF PIEZOELECTRIC,
DIELECTRIC AND ELECTROSTATIC OSCILLATORS –
Part 3: Frequency aging test methods
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 62884-3 has been prepared by IEC technical committee 49:
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency
control, selection and detection.
The text of this International Standard is based on the following documents:
CDV Report on voting
49/1248/CDV 49/1272/RVC
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.
– 4 – IEC 62884-3:2018 © IEC 2018
A list of all parts in the IEC 62884 series, published under the general title Measurement
techniques of piezoelectric, dielectric and electrostatic oscillators, 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.
A bilingual version of this publication may be issued at a later date.
INTRODUCTION
This document was developed from the works related to IEC 60679-1:2007 (third edition), the
measurement techniques of which were restructured into different parts under a new project
reference. This document describes the measurement method for frequency aging only.
– 6 – IEC 62884-3:2018 © IEC 2018
MEASUREMENT TECHNIQUES OF PIEZOELECTRIC,
DIELECTRIC AND ELECTROSTATIC OSCILLATORS –
Part 3: Frequency aging test methods
1 Scope
This part of IEC 62884 describes the methods for the measurement and evaluation of
frequency aging tests of piezoelectric, dielectric and electrostatic oscillators, including
Dielectric Resonator Oscillators (DRO) and oscillators using FBAR (hereinafter referred to as
"Oscillator"). The purpose of those tests is to provide statistical data supporting aging
predictions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60027 (all parts), Letter symbols to be used in electrical technology
IEC 60050-561, International electrotechnical vocabulary – Part 561: Piezoelectric, dielectric
and electrostatic devices and associated materials for frequency control, selection and
detection
IEC 60469, Transitions, pulses and related waveforms – Terms, definitions and algorithms
IEC 60617, Graphical symbols for diagrams, available at http://std.iec.ch/iec60617
IEC 60679-1, Piezoelectric, dielectric and electrostatic oscillators of assessed qualify – Part 1:
Generic specification
IEC 62884-1:2017, Measurement techniques of piezoelectric, dielectric and electrostatic
oscillators – Part 1: Basic methods for the measurement
ISO 80000-1, Quantities and units – Part 1: General
3 Terms and definitions, units and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60679-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 Units and symbols
Units, graphical symbols, letter symbols and terminology shall, wherever possible, be taken
from the following standards:
• IEC 60027;
• IEC 60050-561;
• IEC 60469;
• IEC 60617;
• ISO 80000-1.
4 Frequency aging test
4.1 General
The test and measurement procedures shall be carried out in accordance with the relevant
detail specification.
Where any discrepancies occur for any reason, documents shall rank in the following order of
precedence:
– detail specification;
– sectional specification;
– generic specification;
– any other international documents (for example of the IEC) to which reference is made.
The same order of precedence shall apply to equivalent national documents.
4.2 Test and measurement conditions
4.2.1 General
General test and measurement conditions refer to IEC 62884-1, and especially the output
frequency measurement to 4.5.4 of IEC 62884-1:2017.
4.2.2 Active aging test (non-destructive)
Purpose: Statistical verification of aging performance.
Unless otherwise specified, the operating oscillator unit shall be maintained at the specified
temperature for a continuous period as given in Annex A.
During the period of test, the control of temperature and the accuracy of frequency
measurement shall be consistent with the accuracy of the maximum frequency variations
specified. The oscillator unit shall remain in the chamber throughout the duration of the test
and shall be continually supplied with input power,
...
IEC 62884-3 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Measurement techniques of piezoelectric, dielectric and electrostatic
oscillators –
Part 3: Frequency aging test methods
Techniques de mesure des oscillateurs piézoélectriques, diélectriques et
électrostatiques –
Partie 3: Méthodes d’essai du vieillissement en fréquence
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
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The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
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The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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IEC 62884-3 ®
Edition 1.0 2018-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Measurement techniques of piezoelectric, dielectric and electrostatic
oscillators –
Part 3: Frequency aging test methods
Techniques de mesure des oscillateurs piézoélectriques, diélectriques et
électrostatiques –
Partie 3: Méthodes d’essai du vieillissement en fréquence
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.140 ISBN 978-2-8322-6207-8
– 2 – IEC 62884-3:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions, units and symbols . 6
3.1 Terms and definitions . 6
3.2 Units and symbols. 7
4 Frequency aging test . 7
4.1 General . 7
4.2 Test and measurement conditions . 7
4.2.1 General . 7
4.2.2 Active aging test (non-destructive) . 7
4.2.3 Data fitting . 8
4.2.4 Accelerated aging (non-active) . 9
4.2.5 Extended aging . 10
Annex A (normative) Experimental verification of the frequency aging performance . 11
Bibliography . 13
Table 1 – Measurement parameters depending on the oscillator type . 8
Table 2 – Time acceleration factors for E = 0,38 eV . 10
a
Table A.1 – Procedure for the determination of the frequency aging parameters . 12
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MEASUREMENT TECHNIQUES OF PIEZOELECTRIC,
DIELECTRIC AND ELECTROSTATIC OSCILLATORS –
Part 3: Frequency aging test methods
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 62884-3 has been prepared by IEC technical committee 49:
Piezoelectric, dielectric and electrostatic devices and associated materials for frequency
control, selection and detection.
This bilingual version (2018-11) corresponds to the monolingual English version, published in
2018-03.
The text of this International Standard is based on the following documents:
CDV Report on voting
49/1248/CDV 49/1272/RVC
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.
– 4 – IEC 62884-3:2018 © IEC 2018
The French version of this standard has not been voted upon.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62884 series, published under the general title Measurement
techniques of piezoelectric, dielectric and electrostatic oscillators, 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.
INTRODUCTION
This document was developed from the works related to IEC 60679-1:2007 (third edition), the
measurement techniques of which were restructured into different parts under a new project
reference. This document describes the measurement method for frequency aging only.
– 6 – IEC 62884-3:2018 © IEC 2018
MEASUREMENT TECHNIQUES OF PIEZOELECTRIC,
DIELECTRIC AND ELECTROSTATIC OSCILLATORS –
Part 3: Frequency aging test methods
1 Scope
This part of IEC 62884 describes the methods for the measurement and evaluation of
frequency aging tests of piezoelectric, dielectric and
...
SLOVENSKI STANDARD
01-april-1999
Electrical accessories - Harmonization of general rules
Electrical accessories - Harmonization of general rules
Petit appareillage - Harmonisation des règles générales
Ta slovenski standard je istoveten z: IEC/TR 61916
ICS:
29.120.01 (OHNWULþQDGRGDWQDRSUHPD Electrical accessories in
QDVSORãQR general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
RAPPORT
CEI
TECHNIQUE – TYPE 3
IEC
TECHNICAL
Première édition
REPORT – TYPE 3
First edition
1998-09
Petit appareillage –
Harmonisation des règles générales
Electrical accessories –
Harmonization of general rules
IEC 1998 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 any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique, y compris la photo- including photocopying and microfilm, without permission in
copie et les microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE U
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61916/TR © IEC:1998 – 3 –
CONTENTS
Page
FOREWORD . 7
INTRODUCTION . 9
Clause
1 General. 11
1.1 Scope. 11
1.2 Reference documents. 11
2 Resistance to heat . 13
2.1 Requirements. 13
2.2 Tests. 13
3 Screws, current carrying parts and connections (electrical and mechanical). 17
3.1 Definitions. 19
3.1.1 Tapping for thread-forming screw. 19
3.1.2 Tapping for thread-cutting screw . 19
3.2 Requirements. 21
3.3 Tests. 25
4 Resistance to abnormal heat and to fire . 27
4.1 Requirements. 27
4.2 Tests. 29
4.2.1 Object of the test . 29
4.2.2 General description of the test. 29
4.2.3 Description of test apparatus. 29
4.2.4 Degree of severity. 31
4.2.5 Calibration of the thermocouple. 33
4.2.6 Preconditioning. 33
4.2.7 Initial measurements. 33
4.2.8 Test procedure. 33
4.2.9 Observations and measurements . 35
4.2.10 Evaluation of test results . 35
4.2.11 Information to be given in the relevant specification. 35
5 Resistance of insulating materials to tracking . 39
5.1 Definitions. 41
5.1.1 Tracking. 41
5.1.2 Electrical erosion. 41
5.1.3 Comparative tracking index (CTI) . 41
5.1.4 Proof tracking index (PTI) . 41
5.2 Requirements. 41
5.3 Tests. 41
5.3.1 Test specimens. 41
5.3.2 Conditioning. 43
5.3.3 Test apparatus. 43
5.3.4 Procedure. 45
61916/TR © IEC:1998 – 5 –
Clause Page
6 Resistance to rusting . 51
6.1 Requirements. 51
6.2 Test. 51
7 Legibility, durability and indelibility of marking . 51
7.1 Requirements. 53
7.2 Test. 53
8 Screw-type terminals for connecting conductors . 53
9 Criteria for tests in accessory standards. 53
10 Tolerances. 55
11 Mechanical strength – Free fall . 55
11.1 Requirements. 55
11.2 Tests. 55
Figure 2.1 – Ball pressure test apparatus . 15
Figure 2.2 – Jointed test finger . 17
Figure 3.1 – Thread-forming screw . 19
Figure 3.2 – Thread-cutting screw. 19
Figure 4.1 – Glow-wire and position of the thermocouple. 37
Figure 4.2 – Test apparatus (example). 39
Figure 5.1 – Electrode . 47
Figure 5.2 – Electrode arrangement . 47
Figure 5.3 – Example of test apparatus. 47
Figure 5.4 – Example of test circuit . 49
Table 1 – Torque per thread diameter . 25
61916/TR © IEC:1998 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
ELECTRICAL ACCESSORIES –
HARMONIZATION OF GENERAL RULES
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 co-operation 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 express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are 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.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
The main task of the IEC technical committees is to prepare International standards. In
exceptional circumstances, a technical committee may propose the publication of a technical
report of one of the following types:
• type 1, when the required support cannot be obtained for the publication of an International
Standard, despite repeated efforts;
• type 2, when the subject is still under technical development or where for any other reason
there is the future but not immediate possibility of an agreement on an International
Standard;
• type 3, when a technical committee has collected data of a different kind from that which is
normally published as an International Standard, for example "state of the art".
Technical reports of types 1 standards 2 are subject to review within three years of publication
to decide whether they can be transformed into International Standards. Technical reports of
type 3 do not necessarily have to be reviewed until the data they provide are considered to be
no longer valid or useful.
IEC 61916 which is a technical report of type 3 has been prepared by IEC technical committee
23: Electrical accessories.
The text of this technical report is based on the following documents:
Committee draft Report on voting
23/239/CDV 23/245/RVC
Full information on the voting for the approval of this technical report can be found in the report
on voting indicated in the above table.
61916/TR © IEC:1998 – 9 –
INTRODUCTION
Many rules in the Standards established by TC 23 and its eight subcommittees are identical.
An harmonization is required as far as principle and redaction are concerned.
During the general meeting of TC 23, held in Stockholm in June 1980 (see PV2341/TC23
item VIII), the question of "General Rules" in TC 23 was discussed. It was decided to create a
Coordinating Group which would have as main task to harmonize the so-called "General
Rules". This work was carried out during the ensuing years by TC 23, following proposals by
the Coordinating Group, during the meetings of Zurich (26 Jan, 1984/RM2661/TC23 item V),
Rome (27/29 Nov, 1985/RM2879/TC23 items VIII and IX), Brussels (9 Apr, 1987/RM3073/TC23
annex AI), Adelaide (28 Oct, 1988/RM3118/TC23 appendix A), Beijing (26 Oct, 1990/
RM3520/TC23 item VII). This document was modified by document 23/239/CDV and approved
after voting (see 23/245/RVC)
The purpose of this work is to gain time and avoid repeating discussions within TC 23 and its
subcommittees and finally, to have harmonized rules on the same subjects in all the Standards
published by TC 23 and its subcommittees.
These recommendations are meant as a guide. Consequently, each subcommittee may use
whole or part of the document which is not meant to be compulsory.
In publishing these recommendations, TC 23 wishes to spread the information so that other
committees of the IEC may use these recommendations, if necessary.
61916/TR © IEC:1998 – 11 –
ELECTRICAL ACCESSORIES –
HARMONIZATION OF GENERAL RULES
1 General
1.1 Scope
This technical report provides recommendations and test requirements applicable to electrical
accessories. It aims to harmonize general rules for the preparation of international standards in
this field. It gives to that effect recommendations which are intended to be used as a guide.
1.2 Reference documents
IEC 60051 (
...
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