SIST EN 61083-2:2013
(Main)Instruments and software used for measurement in high-voltage and high-current tests - Part 2: Requirements for software for tests with impulse voltages and currents
Instruments and software used for measurement in high-voltage and high-current tests - Part 2: Requirements for software for tests with impulse voltages and currents
This part of IEC 61083 is applicable to software used for evaluation of impulse parameters from recorded impulse voltages and currents. It provides test waveforms and reference values for the software required to meet the measuring uncertainties and procedures specified in IEC 60060-1, IEC 60060-2, IEC 60060-3 and IEC 62475. Hardware with built-in firmware that cannot accept external numerical input data is not covered by this standard. The object of this standard is to - establish the tests which are necessary to show that the performance of the software complies with the requirements of the relevant IEC standards; - define the terms specifically related to digital processing; - specify reference values and the acceptance limits for the reference impulses; - specify the requirements for the record of performance; - define the methods to assess the contribution of software to the measurement uncertainty.
Messgeräte und Software für die Messung von Hochspannungs- und Hochstrom-Prüfungen - Teil 2: Anforderungen an die Software für Impulsprüfungen
Appareils et logiciels utilisés pour les mesures pendant les essais à haute tension et haute intensité -- Partie 2: Exigences pour le logiciel pour les essais avec des tensions et des courants de choc
La CEI 61083-2:2013 est applicable aux logiciels utilisés pour l'évaluation des paramètres de choc à partir des tensions et des courants de choc enregistrés. Elle précise les exigences relatives aux formes d'onde d'essai et aux valeurs de référence nécessaires pour respecter les incertitudes de mesures et les procédures spécifiées dans la CEI 60060-1, la CEI 60060-2, la CEI 60060-3 et la CEI 62475. La présente norme ne couvre pas les matériels munis de microprogrammes intégrés qui ne peuvent pas accepter les données d'entrée numériques externes. La présente norme à pour objet de décrire les essais nécessaires pour montrer que les caractéristiques du logiciel sont conformes aux exigences des normes CEI correspondantes, définir les termes particuliers relatifs au traitement numérique, spécifier les valeurs de référence et les limites d'acceptation pour les chocs de référence, spécifier les exigences pour la fiche de caractéristiques et définir les méthodes permettant d'évaluer la contribution du logiciel à l'incertitude de mesure. Cette deuxième édition annule et remplace la première édition parue en 1996. Elle constitue une révision technique. Les modifications principales par rapport à l'édition précédente sont les suivantes: - le générateur de données numériques d'essai a fait l'objet d'une mise à jour, - le nombre de formes d'onde de choc de référence inclus dans le générateur de données numériques d'essai a été considérablement augmenté, - toutes les valeurs de référence ont été recalculées selon les nouvelles définitions énoncées dans la CEI 60060-1 et la CEI 62475 et - des méthodes pour l'estimation de l'incertitude d'évaluation des paramètres ont été introduites; ces méthodes sont conformes à la procédure introduite dans la CEI 60060-2. Mots-clés: Haute tension, Haute intensité, tension de choc, courants de choc
Instrumenti in programska oprema za meritve visokih napetosti in velikih tokov - 2. del: Zahteve za programsko opremo za preskušanje z impulzi
Ta del IEC 61083 velja za programsko opremo, ki se uporablja za oceno parametrov impulza iz zabeleženih napetosti in tokov impulza. Zagotavlja preskusne tokovne poti in referenčne vrednosti za programsko opremo, ki so potrebne za usklajevanje z merilno negotovostjo in postopki iz IEC 60060-1, IEC 60060-2, IEC 60060-3 in IEC 62475. Ta standard ne zajema strojne opreme z vdelano programsko opremo, ki ne sprejema zunanjih številskih vhodnih podatkov. Namen tega standarda je: – uveljaviti preskuse, s katerimi je mogoče pokazati, da delovanje programske opreme ustreza zahtevam zadevnih standardov IEC; – določiti pogoje, ki posebej zadevajo digitalno obdelavo; – določiti referenčne vrednosti in meje sprejemljivosti za referenčne impulze; –določiti zahteve za zabeleženo delovanje; – določiti metode za oceno prispevanja programske opreme k merilni negotovosti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61083-2:2013
01-september-2013
1DGRPHãþD
SIST EN 61083-2:1998
Instrumenti in programska oprema za meritve visokih napetosti in velikih tokov - 2.
del: Zahteve za programsko opremo za preskušanje z impulzi
Instruments and software used for measurement in high-voltage and high-current tests -
Part 2: Requirements for software for tests with impulse voltages and currents
Messgeräte und Software für die Messung von Hochspannungs- und Hochstrom-
Prüfungen - Teil 2: Anforderungen an die Software für Impulsprüfungen
Appareils et logiciels utilisés pour les mesures pendant les essais à haute tension et
haute intensité -- Partie 2: Exigences pour le logiciel pour les essais avec des tensions et
des courants de choc
Ta slovenski standard je istoveten z: EN 61083-2:2013
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
SIST EN 61083-2:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 61083-2:2013
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SIST EN 61083-2:2013
EUROPEAN STANDARD
EN 61083-2
NORME EUROPÉENNE
May 2013
EUROPÄISCHE NORM
ICS 17.220.20; 19.080 Supersedes EN 61083-2:1997
English version
Instruments and software used for measurement in high-voltage
and high-current tests -
Part 2: Requirements for software for tests
with impulse voltages and currents
(IEC 61083-2:2013)
Appareils et logiciels utilisés pour les Messgeräte und Software für Messungen
mesures pendant les essais à haute bei Hochspannungs- und Hochstrom-
tension et haute intensité - Prüfungen -
Partie 2: Exigences pour le logiciel pour Teil 2: Anforderungen an die Software bei
les essais avec des tensions et des Prüfungen mit Stoßspannungen und -
courants de choc strömen
(CEI 61083-2:2013) (IEC 61083-2:2013)
This European Standard was approved by CENELEC on 2013-04-24. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61083-2:2013 E
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SIST EN 61083-2:2013
EN 61083-2:2013 - 2 -
Foreword
The text of document 42/318/FDIS, future edition 2 of IEC 61083-2, prepared by IEC/TC 42
"High-voltage testing techniques" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61083-2:2013.
The following dates are fixed:
(dop) 2014-01-24
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2016-04-24
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61083-2:1997.
EN 61083-2:2013 includes the following significant technical changes with respect to
EN 61083-2:1997:
a) the test data generator software has been updated;
b) the number of reference impulse waveforms included in the test data generator has been
significantly increased;
c) all reference values have been recalculated according to new definitions in EN 60060-1 and
EN 62475;
d) methods for estimating the uncertainty of parameter evaluation has been introduced and are in line
with the procedure introduced in EN 60060-2.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61083-2:2013 was approved by CENELEC as a European
Standard without any modification.
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Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60060-1 2010 High-voltage test techniques - EN 60060-1 2010
Part 1: General definitions and test
requirements
IEC 60060-2 - High-voltage test techniques - EN 60060-2 -
Part 2: Measuring systems
IEC 60060-3 2006 High voltage test techniques - EN 60060-3 2006
Part 3: Definitions and requirements + corr. October 2006
for on-site testing
IEC 61083-1 2001 Instruments and software used for EN 61083-1 2001
measurement in high-voltage impulse tests -
Part 1: Requirements for instruments
IEC 62475 2010 High-current test techniques - Definitions EN 62475 2010
and requirements for test currents and
measuring systems
ISO/IEC Guide 98-3 - Uncertainty of measurement - - -
Part 3: Guide to the expression of
uncertainty in measurement (GUM:1995)
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SIST EN 61083-2:2013
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SIST EN 61083-2:2013
IEC 61083-2
®
Edition 2.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Instruments and software used for measurement in high-voltage and high-
current tests –
Part 2: Requirements for software for tests with impulse voltages and currents
Appareils et logiciels utilisés pour les mesures pendant les essais à haute
tension et haute intensité –
Partie 2: Exigences pour le logiciel pour les essais avec des tensions et des
courants de choc
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 17.220.20; 19.080 ISBN 978-2-83220-673-7
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
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SIST EN 61083-2:2013
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CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Test data generator (TDG) . 9
4.1 Principle . 9
4.2 Data format . 9
5 Values and acceptance limits for the parameters of the reference impulses . 9
6 Software testing . 9
6.1 General . 9
6.2 Performance test . 10
6.3 Uncertainty contribution for IEC 60060-2 and/or IEC 62475 . 10
7 Record of performance of the software . 11
Annex A (normative) Reference values and acceptance limits for the parameters of
TDG impulses . 12
Annex B (informative) Alternative method for uncertainty estimation . 25
Bibliography . 32
Table 1 – References to impulse voltage parameter definitions . 8
Table 2 – References to impulse current parameter definitions . 9
Table 3 – Standard uncertainty contributions of software to the overall uncertainty
according to the simplified procedure . 11
Table A.1 – Reference values and their acceptance limits for full lightning impulses (LI)
(1 of 6) . 12
Table A.2 – Reference values and their acceptance limits for chopped lightning
impulses (LIC) (1 of 2) . 18
Table A.3 – Reference values and their acceptance limits for switching impulses (SI) . 20
Table A.4 – Reference values and their acceptance limits for current impulses (IC) (1
of 2) . 21
Table A.5 – Reference values and their acceptance limits for oscillating lightning
impulses (OLI) . 23
Table A.6 – Reference values and their acceptance limits for oscillating switching
impulses (OSI) . 24
Table B.1 – Expanded uncertainties (U ) of the lightning impulse reference values (1 of
x
2) . 27
Table B.2 – Expanded uncertainties (U ) of the chopped lightning impulse reference
x
values . 28
Table B.3 – Expanded uncertainties (U ) of the switching impulse reference values . 29
x
Table B.4 – Expanded uncertainties (U ) of the impulse current reference values . 29
x
Table B.5 – Expanded uncertainties (U ) of the oscillating lightning impulse reference
x
values . 29
Table B.6 – Expanded uncertainties (U ) of the oscillating switching impulse reference
x
values . 30
Table B.7 – Example of uncertainty estimation . 30
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSTRUMENTS AND SOFTWARE USED FOR MEASUREMENT
IN HIGH-VOLTAGE AND HIGH-CURRENT TESTS –
Part 2: Requirements for software for tests
with impulse voltages and currents
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 61083-2 has been prepared by IEC technical committee 42: High-
voltage and high-current testing techniques.
This second edition cancels and replaces the first edition, published in 1996, and constitutes
a technical revision.
The main changes with respect to the previous edition are listed below:
a) the test data generator software has been updated:
b) the number of reference impulse waveforms included in the test data generator has been
significantly increased;
c) all reference values have been recalculated according to new definitions in
IEC 60060-1and IEC 62475;
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d) methods for estimating the uncertainty of parameter evaluation has been introduced and
are in line with the procedure introduced in IEC 60060-2.
The text of this standard is based on the following documents:
FDIS Report on voting
42/318/FDIS 42/321/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 61083 series, published under the general title Instruments
and software used for measurement in high-voltage and high-current tests, can be found on
the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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61083-2 © IEC:2013 – 5 –
INTRODUCTION
IEC 61083-1 specifies the test requirements for digital recorders. Digital recorders, like
analogue oscilloscopes, are susceptible to changes in their characteristics. However, the
more stringent testing (than is practical for analogue oscilloscopes) specified for digital
recorders for standard impulse voltage and current measurement has led to the accuracy of
digital recorders being more clearly demonstrated.
This part of IEC 61083 applies to software used to process digital records to provide the
values of the relevant impulse parameters. The raw data are retained for comparison with the
processed data. However, since the parameters of the test impulse (including the test value)
are to be read from the processed data, it is important to establish tests to ensure that the
reading of parameters is adequately performed. The problem is how to ensure this, while
permitting users to develop a wide range of techniques.
This problem is further complicated by the different needs of various users, ranging from
single-purpose test laboratories, for example those of a cable manufacturer who may only test
a few objects which are capacitive, to large high-voltage test/research laboratories, which
may perform tests on a very wide range of objects, which have a correspondingly wide range
of impedances.
The approach taken in this part of IEC 61083 is to provide, from a test data generator
software, waveforms (and ranges of their parameters) which a user can employ to verify that a
procedure gives values within the specified ranges. To reduce the amount of testing required,
the waveforms are divided into groups, and the user needs only to check those groups that
are appropriate for the high-voltage and/or high-current tests to be performed in his/her
laboratory.
New definitions for lightning impulse parameters and switching impulse time-to-peak
evaluation are introduced in IEC 60060-1. The changes in these definitions have lead to
significant changes in some of the reference values in this standard. The number of impulse
records in the test data generator has been increased to cover a wider range of impulse
shapes seen in on-site testing.
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INSTRUMENTS AND SOFTWARE USED FOR MEASUREMENT
IN HIGH-VOLTAGE AND HIGH-CURRENT TESTS –
Part 2: Requirements for software for tests
with impulse voltages and currents
1 Scope and object
This part of IEC 61083 is applicable to software used for evaluation of impulse parameters
from recorded impulse voltages and currents. It provides test waveforms and reference values
for the software required to meet the measuring uncertainties and procedures specified in
IEC 60060-1, IEC 60060-2, IEC 60060-3 and IEC 62475.
Hardware with built-in firmware that cannot accept external numerical input data is not
covered by this standard.
The object of this standard is to
• establish the tests which are necessary to show that the performance of the software
complies with the requirements of the relevant IEC standards;
• define the terms specifically related to digital processing;
• specify reference values and the acceptance limits for the reference impulses;
• specify the requirements for the record of performance;
• define the methods to assess the contribution of software to the measurement uncertainty.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
requirements
IEC 60060-2, High-voltage test techniques – Part 2: Measuring systems
IEC 60060-3:2006, High-voltage test techniques – Part 3: Definitions and requirements for
on–site testing
IEC 61083-1:2001, Instruments and software used for measurement in high-voltage impulse
tests – Part 1: Requirements for instruments
IEC 62475:2010, High-current test techniques – Definitions and requirements for test currents
and measuring systems
ISO/IEC Guide 98-3, Uncertainty of measurement – Part 3: Guide to the expression of
uncertainty in measurement (GUM:1995)
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE References to definitions of relevant impulse parameters, as shown in the relevant clauses of
IEC 60060-1:2010, IEC 60060-3:2006 and IEC 62475:2010 are listed in Tables 1 and 2.
3.1
raw data
original record of sampled and quantized information obtained when a digital recorder
converts an analogue signal into a digital form, possibly corrected for offset or multiplied by a
scale factor
3.2
processed data
data obtained by any processing (other than correction for offset and/or multiplying by a scale
factor) of the raw data
[SOURCE: IEC 61083-1:2001, definition 1.3.3.5, modified – "constant scale factor" replaced
by "scale factor"; NOTE not retained]
3.3
internal noise level
standard deviation of the samples recorded when a constant voltage is applied to the input of
the digital recorder
3.4
reference impulse
waveform supplied by the test data generator (TDG)
3.5
sampling rate
sampling frequency
number of samples of a signal taken per unit time
[SOURCE: IEC 60050-704:1993, definition 704-23-03]
3.6
resolution (in digital processing)
measure of the accuracy with which a digital system can distinguish between the magnitudes
of two samples of a signal
Note 1 to entry: Resolution is usually expressed as the number of bits necessary to express in binary form the
maximum number of possible different signal levels which can be recognized by the system.
[SOURCE: IEC 60050-807:1998, definition 807-01-02]
3.7
test data generator
TDG
computer program that generates digital reference data files, representative of synthesized
and recorded impulse waveforms
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SIST EN 61083-2:2013
Table 1 – References to impulse voltage parameter definitions
IEC 60060-1:2010 IEC 60060-3:2006
U T β T T T U U T T T f
t p 1 c 2 e t p 1 2
Impulse group/
Value of Relative Time to Average Value of Time to
Evaluation algorithm Time to Front Time to Extreme Time to Front Oscillation
the test overshoot half- rate of the test half-
peak time chopping value peak time frequency
voltage magnitude value rise voltage value
Full lightning impulse 7.1.15, 7.1.17, 7.1.18, 7.1.22,
7.1.9 7.1.20 (7.2.4) (7.2.5) (7.2.7)
voltage (LI) Annex B Annex B Annex B Annex B
Front chopped lightning
7.1.15,
impulse voltage 7.1.27 7.1.9 7.1.20
7.2.6
(LIC-A1, LIC-M1 to LIC-M3)
Tail chopped lightning
7.1.15, 7.1.17, 7.1.18, 7.1.27,
impulse voltage 7.1.9 7.1.20
Annex B Annex B Annex B Annex B
(LIC-M4 to LIC-M5)
Switching impulse voltage
8.1.2 8.1.3 8.1.5 (8.2.3) (8.2.4) (8.2.5)
(SI)
Oscillating lightning impulse
voltage 7.2.4 7.2.5 7.2.7 8.2.6
(OLI)
Oscillating switching
impulse voltage 8.2.3 8.2.4 8.2.5 8.2.6
(OSI)
NOTE Some definitions of parameters (shown in parenthesis) in IEC 60060-3:2006 are different from those in IEC 60060-1:2010. For IEC 60060-3, reference values are only
provided for oscillating lightning and oscillating switching impulse parameters.
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Table 2 – References to impulse current parameter definitions
IEC 62475:2010
I T T T T
p 1 2 d t
Impulse group /
Peak value Time to Total
Evaluation algorithm
Front time Duration
of current half-value duration
Exponential impulse current
10.2.3 10.2.4 10.2.6
(IC-M1 to IC-M7, IC-M9)
Rectangular impulse current
10.2.3 10.2.7 10.2.8
(IC-M8)
4 Test data generator (TDG)
4.1 Principle
The test data generator (TDG) is a computer program that generates digital reference data
files, representative of both synthetic and recorded impulse waveforms. These reference
impulses shall be processed by the software under test, and the parameters evaluated from
the processed data shall fall within the acceptance limits given in Annex A. In this way the
performance of the software can be verified.
The TDG is an integral part of this standard and is provided as compiled code for a computer
1
operating system. TDG is a menu-driven program with a built-in help file.
running Windows
4.2 Data format
The reference data files generated by the TDG simulate the raw data, which would be
obtained from the digital recorder of the user. The reference data files are written in a two
column ASCII format. Their respective values are given in terms of seconds and in volts or
amperes. If the data format or range expected by the software under test does not correspond
to the format or range provided by the TDG, a suitable conversion program shall be used.
NOTE Software which cannot read TDG reference impulses (either in the direct or converted form) is not covered
by this standard.
5 Values and acceptance limits for the parameters of the reference impulses
A round-robin test has been performed, in which a number of laboratories independently
calculated values for parameters of the reference impulses. Statistical mean values from this
round-robin test were taken as the reference values of the parameters listed in
Tables 1 and 2.
Requirements for acceptance limits have been set based on the needs of the application.
These parameters of the reference impulses are given in Tables A.1 to A.6.
6 Software testing
6.1 General
The TDG is designed to provide data files simulating digital recorder output for the purpose of
testing software used to determine the impulse parameters as defined in IEC 60060-1,
—————————
1
Windows is the trade name of a product supplied by Microsoft. This information is given for the convenience of
users of this document and does not constitute an endorsement by IEC of the product named. Equivalent
products may be used if they can be shown to lead to the same results.
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IEC 60060-3 and IEC 62745. The references to relevant clauses of these standards are listed
in Tables 1 and 2.
The impulses in the TDG are grouped in six groups, according to the impulse type:
LI: full lightning impulse;
LIC: front or tail chopped lightning impulse;
SI: switching impulse;
IC: impulse current;
OLI: oscillating lightning impulse;
OSI: oscillating switching impulse.
6.2 Performance test
The performance test for an algorithm is executed by evaluating all reference impulses in the
selected group, for example, group LI.
The performance test shall be performed for each version of the evaluation algorithm and for
a set of sampling rates, resolutions and noise levels relevant for the application.
Evidence that the evaluation algorithm actually used during tests is the same as the version
that has been verified according to
...
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