High-voltage test techniques - Part 2: Measuring systems (IEC 60060-2:2010)

This part of IEC 60060 is applicable to complete measuring systems, and to their components, used for the measurement of high voltages during laboratory and factory tests with direct voltage, alternating voltage and lightning and switching impulse voltages as specified in IEC 60060-1. For measurements during on-site tests see IEC 60060-3. The limits on uncertainties of measurements stated in this standard apply to test levels stated in IEC 60071-1:2006. The principles of this standard apply also to higher levels but the uncertainty may be greater. This standard: � defines the terms used; � describes methods to estimate the uncertainties of high-voltage measurements; � states the requirements which the measuring systems shall meet; � describes the methods for approving a measuring system and checking its components; � describes the procedures by which the user shall show that a measuring system meets the requirements of this standard, including the limits set for the uncertainty of measurement.

Hochspannungs-Prüftechnik - Teil 2: Messsysteme (IEC 60060-2:2010)

Techniques des essais à haute tension - Partie 2: Systèmes de mesure (CEI 60060-2:2010)

La CEI 60060-2:2010 est applicable aux systèmes de mesure complets et à leurs constituants lorsqu'ils sont utilisés pour la mesure de hautes tensions réalisée lors d'essais en laboratoire et en usine en tension continue, tension alternative, tensions de chocs de foudre et de manoeuvre tels qu'ils sont définis dans la CEI 60060-1. Pour les mesures réalisées lors d'essais in situ, voir la CEI 60060-3.  Les domaines d'incertitudes de mesure dont il est fait état dans la présente norme s'appliquent aux niveaux d'essais définis dans la CEI 60071-1:2006. Les principes développés dans la présente norme s'appliquent aussi à des niveaux de tension d'essais plus élevés, mais l'incertitude peut en être alors plus élevée. La présente norme définit les termes utilisés, décrit des méthodes pour estimer les incertitudes des mesures des hautes tensions, détermine les exigences auxquelles doivent satisfaire les systèmes de mesure, décrit les méthodes à utiliser pour qualifier un système de mesure et pour en contrôler les différents constituants, et décrit la procédure par laquelle l'utilisateur doit montrer qu'un système de mesure satisfait aux exigences de la présente norme, y compris le domaine fixé pour l'incertitude de mesure. Par rapport à l'édition précédente, les modifications techniques majeures sont les suivantes:  - La disposition générale et le texte ont été mis à jour et améliorés pour rendre la norme plus facile à utiliser.  - La norme a été révisée afin de l'aligner sur la CEI 60060-1.  - Le traitement de l'estimation de l'incertitude de mesure a été élargi.

Tehnike visokonapetostnega preskušanja - 2. del: Merilni sistemi (IEC 60060-2:2010)

Ta del IEC 60060 velja za celotne merilne sisteme in njihove komponente, uporabljene za merjenje visokih napetosti med laboratorijskimi in tovarniškimi preskusi z enosmerno napetostjo, izmenično napetostjo in napetostjo pri strelah ter impulznih preklopih, kot je določeno v IEC 60060-1. Za meritve med preskusi na mestu samem glej IEC 60060-3. Meje negotovosti meritev, ki so navedene v tem standardu, veljajo za preskusne stopnje, navedene v IEC 60071-1:2006. Načela tega standarda veljajo tudi za višnje stopnje, vendar je lahko negotovost večja. Ta standard: – opredeljuje uporabljene izraze; – opisuje metode za ocenjevanje negotovosti meritev visokega toka; – navaja zahteve, ki jih mora izpolnjevati celoten merilni sistem; – opisuje metode za odobritev merilnega sistema in preverjanje njegovih komponent; – opisuje postopke, s katerim uporabnik prikaže, da merilni sistem izpolnjuje zahteve tega standarda, vključno z mejnimi vrednostmi, postavljenimi za negotovost meritve.

General Information

Status
Published
Publication Date
09-Feb-2011
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
31-Jan-2011
Due Date
07-Apr-2011
Completion Date
10-Feb-2011

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SLOVENSKI STANDARD
SIST EN 60060-2:2011
01-marec-2011
1DGRPHãþD
SIST EN 60060-2:1998
SIST EN 60060-2:1998/A11:2000
Tehnike visokonapetostnega preskušanja - 2. del: Merilni sistemi (IEC 60060-
2:2010)
High-voltage test techniques - Part 2: Measuring systems (IEC 60060-2:2010)
Hochspannungs-Prüftechnik - Teil 2: Messsysteme (IEC 60060-2:2010)
Techniques des essais à haute tension - Partie 2: Systèmes de mesure (CEI 60060-
2:2010)
Ta slovenski standard je istoveten z: EN 60060-2:2011
ICS:
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH testing
SIST EN 60060-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 60060-2:2011

---------------------- Page: 2 ----------------------

SIST EN 60060-2:2011

EUROPEAN STANDARD
EN 60060-2

NORME EUROPÉENNE
January 2011
EUROPÄISCHE NORM

ICS 17.220.20; 19.080 Supersedes EN 60060-2:1994 + A11:1998


English version


High-voltage test techniques -
Part 2: Measuring systems
(IEC 60060-2:2010)


Techniques des essais à haute tension - Hochspannungs-Prüftechnik -
Partie 2: Systèmes de mesure Teil 2: Messsysteme
(CEI 60060-2:2010) (IEC 60060-2:2010)




This European Standard was approved by CENELEC on 2011-01-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland 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


© 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60060-2:2011 E

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SIST EN 60060-2:2011
EN 60060-2:2011 - 2 -
Foreword
The text of document 42/281/FDIS, future edition 3 of IEC 60060-2, prepared by IEC TC 42, High-voltage
testing techniques, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60060-2 on 2011-01-01.
This European Standard supersedes EN 60060-2:1994 + A11:1998.
The significant technical changes with respect to EN 60060-2:1994+A11:1998 are as follows:
a) The general layout and text was updated and improved to make the standard easier to use.
b) The standard was revised to align it with EN 60060-1.
c) The treatment of measurement uncertainty estimation has been expanded.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2014-01-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60060-2:2010 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 60051 series NOTE  Harmonized in EN 60051 series (not modified).
IEC 60060-3:2006 NOTE  Harmonized as EN 60060-3:2006 (not modified).
IEC 60071-1:2006 NOTE  Harmonized as EN 60071-1:2006 (not modified).
IEC 60270 NOTE  Harmonized as EN 60270.
IEC 62475 NOTE  Harmonized as EN 62475.
ISO/IEC 17025:2005 NOTE  Harmonized as EN ISO/IEC 17025:2005 (not modified).
__________

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SIST EN 60060-2:2011
- 3 - EN 60060-2:2011
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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.

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 60052 - Voltage measurement by means of standard EN 60052 -
air gaps


IEC 60060-1 - High-voltage test techniques - EN 60060-1 -
Part 1: General definitions and test
requirements


IEC 61083-1 - Instruments and software used for EN 61083-1 -
measurement in high-voltage impulse tests -
Part 1: Requirements for instruments


IEC 61083-2 - Digital recorders for measurements in high- EN 61083-2 -
voltage impulse tests -
Part 2: Evaluation of software used for the
determination of the parameters of impulse
waveforms


ISO/IEC Guide 98-3 2008 Uncertainty of measurement - - -
Part 3: Guide to the expression of uncertainty
in measurement (GUM:1995)

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SIST EN 60060-2:2011

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SIST EN 60060-2:2011

IEC 60060-2
®
Edition 3.0 2010-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside


High-voltage test techniques –
Part 2: Measuring systems

Techniques des essais à haute tension –
Partie 2: Systèmes de mesure

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XB
CODE PRIX
ICS 17.220.20; 19.080 ISBN 978-2-88912-267-7
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 60060-2:2011
– 2 – 60060-2 Ó IEC:2010
CONTENTS
FOREW ORD . 6
1 Sc o pe . 8
2 Normative references . 8
3 Terms and definitions . 8
3.1 Measuring systems . 9
3.2 Components of a measuring system . 9
3.3 Scale factors . 10
3.4 Rated values . 11
3.5 Definitions related to dynamic behaviour . 11
3.6 Definitions related to uncertainty. 13
3.7 Definitions related to tests on measuring systems . 14
4 Procedures for qualification and use of measuring systems . 15
4.1 General principles . 15
4.2 Schedule of performance tests . 16
4.3 Schedule of performance checks . 16
4.4 Requirements for the record of performance . 16
4.4.1 Contents of the record of performance . 16
4.4.2 Exceptions . 17
4.5 Operating conditions . 17
4.6 Uncertainty . 17
5 Tests and test requirements for an approved measuring system and its
components . 18
5.1 General requirements . 18
5.2 Calibration – Determination of the scale factor . 19
5.2.1 Calibration of measuring systems by comparison with a reference
measuring system (preferred method) . 19
5.2.2 Determination of the scale factor of a measuring system from the
scale factors of its components (alternative method) . 22
5.3 Linearity test. 23
5.3.1 Application . 23
5.3.2 Alternative methods in order of suitability . 24
5.4 Dynamic behaviour . 25
5.4.1 General . 25
5.4.2 Determination of the amplitude/frequency response . 25
5.4.3 Reference method for impulse voltage measuring systems . 26
5.5 Short-term stability . 26
5.6 Long-term stability. 26
5.7 Ambient temperature effect . 27
5.8 Proximity effect . 27
5.9 Software effect . 27
5.10 Uncertainty calculation of the scale factor . 27
5.10.1 General . 27
5.10.2 Uncertainty of the calibration . 28
5.10.3 Uncertainty of measurement using an approved measuring system . 29
5.11 Uncertainty calculation of time parameter measurement (impulse voltages
only) . 30
5.11.1 General . 30

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SIST EN 60060-2:2011
60060-2 Ó IEC:2010 – 3 –
5.11.2 Uncertainty of the time parameter calibration . 30
5.11.3 Uncertainty of time parameter measurement using an approved
measuring system . 31
5.12 Interference test (transmission system and instrument for impulse voltage
measurements) . 32
5.13 Withstand tests of converting device . 32
6 Measurement of direct voltage . 33
6.1 Requirements for an approved measuring system . 33
6.1.1 General . 33
6.1.2 Uncertainty contributions . 33
6.1.3 Requirement on converting device . 33
6.1.4 Dynamic behaviour for measuring voltage changes . 33
6.2 Tests on an approved measuring system . 33
6.3 Performance check . 34
6.3.1 General . 34
6.3.2 Comparison with an approved measuring system . 34
6.3.3 Check of the scale factors of the components . 35
6.4 Measurement of ripple amplitude . 35
6.4.1 Requirements . 35
6.4.2 Uncertainty contributions . 35
6.4.3 Calibrations and tests on an approved ripple voltage measuring
system . 35
6.4.4 Measurement of the scale factor at the ripple frequency . 35
6.4.5 Dynamic behaviour by amplitude/frequency response . 35
6.4.6 Performance check for ripple measuring system . 36
7 Measurement of alternating voltage . 36
7.1 Requirements for an approved measuring system . 36
7.1.1 General . 36
7.1.2 Uncertainty contributions . 36
7.1.3 Dynamic behaviour . 36
7.2 Tests on an approved measuring system . 38
7.3 Dynamic behaviour test . 38
7.4 Performance check . 38
7.4.1 General . 38
7.4.2 Comparison with an approved measuring system . 38
7.4.3 Check of the scale factors of the components . 39
8 Measurement of lightning impulse voltage . 40
8.1 Requirements for an approved measuring system . 40
8.1.1 General . 40
8.1.2 Uncertainty contributions . 40
8.1.3 Requirement on measuring instrument . 40
8.1.4 Dynamic behaviour . 40
8.1.5 Connection to the test object . 40
8.2 Tests on an approved measuring system . 41
8.3 Performance test on measuring systems . 42
8.3.1 Reference method (preferred) . 42
8.3.2 Alternative method supplemented by a measurement of the step
response according to Annex C . 42
8.4 Dynamic behaviour test . 43

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SIST EN 60060-2:2011
– 4 – 60060-2 Ó IEC:2010
8.4.1 Comparison with a reference measuring system (preferred) . 43
8.4.2 Alternative method based on step response parameters (Annex C) . 43
8.5 Performance check . 43
8.5.1 Comparison with an approved measuring system . 43
8.5.2 Check of the scale factors of the components . 43
8.5.3 Dynamic behaviour check by reference record . 43
9 Measurement of switching impulse voltage . 43
9.1 Requirements for an approved measuring system . 43
9.1.1 General . 43
9.1.2 Uncertainty contribution . 44
9.1.3 Requirements for the measuring instrument . 44
9.1.4 Dynamic behaviour . 44
9.1.5 Connection to the test object . 44
9.2 Tests on an approved measuring system . 44
9.3 Performance test on measuring systems . 44
9.3.1 Reference method (preferred) . 44
9.3.2 Alternative methods supplemented by a step response measurement . 45
9.4 Dynamic behaviour test by comparison. 45
9.5 Performance check . 45
9.5.1 Scale factor check by comparison with an approved measuring
system . 45
9.5.2 Check of the scale factors of the components . 45
9.5.3 Dynamic behaviour check by reference record . 45
10 Reference measuring systems . 47
10.1 Requirements for reference measuring systems . 47
10.1.1 Direct voltage . 47
10.1.2 Alternating voltage . 47
10.1.3 Full and chopped lightning and switching impulse voltages . 47
10.2 Calibration of a reference measuring system . 47
10.2.1 General . 47
10.2.2 Reference method: Comparative measurement . 47
10.2.3 Alternative method for impulse voltages: Measurement of scale factor
and evaluation of step response parameters . 47
10.3 Interval between successive calibrations of reference measuring systems . 47
10.4 Use of reference measuring systems . 48
Annex A (informative) Uncertainty of measurement . 49
Annex B (informative) Examples for the calculation of measuring uncertainties in high-
voltage measurements . 57
Annex C (informative) Step response measurements . 65
Annex D (informative) Convolution method for the determination of dynamic behaviour
from step response measurements . 70
Bibliography . 73

Figure 1 – Amplitude-frequency response with examples for limit frequencies (f ; f ) . 12
1 2
Figure 2 – Calibration by comparison over the full voltage range . 20
Figure 3 – Uncertainty contributions of the calibration (example with minimum of 5
voltage levels) . 21
Figure 4 – Calibration by comparison over a limited voltage range, with an additional
linearity test . 22

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SIST EN 60060-2:2011
60060-2 Ó IEC:2010 – 5 –
Figure 5 – Linearity test of the measuring system with a linear device in the extended
voltage range . 24
Figure 6 – Shaded area for acceptable normalised amplitude-frequency responses of
measuring systems intended for single fundamental frequencies f (to be tested in
nom
the range (1….7) f ) . 37
nom
Figure 7 – Shaded area for acceptable normalised amplitude-frequency responses of
measuring systems intended for a range of fundamental frequencies f to f (to
nom1 nom2
be tested in the range f to 7 f ) . 38
nom1 nom2
Figure A.1 – Normal probability distribution p(x) . 55
Figure A.2 – Rectangular probability distribution p(x) . 56
Figure B.1 – Comparison between the system under test, X, and the reference system, N . 64
Figure B.2 – Front time deviation ΔT of system X, related to the reference system N,
1,j
and their mean ΔT in the range of T = 0,8 ms … 1,6 ms . 64
1m 1
Figure C.1 – Definitions of response parameters. 68
Figure C.2 – A unit-step response g(t) showing an initial distortion of initial distortion
time T . 69
0
Figure C.3 – Suitable circuits for step response measurement . 69

Table 1 – Tests required for an approved direct voltage measuring system . 34
Table 2 – Required tests for uncertainty contributions in ripple measurement . 36
Table 3 – Tests required for an approved alternating voltage measuring system . 39
Table 4 – Tests required for an approved lightning impulse voltage measuring system . 41
Table 5 – Tests required for a switching impulse voltage measuring system . 46
Table 6 – Recommended response parameters for impulse voltage reference
measuring systems . 48
Table A.1 – Coverage factor k for effective degrees of freedom ν (p = 95,45 %) . 54
eff
Table A.2 – Schematic of an uncertainty budget . 55
Table B.1 – Result of the comparison measurement at a single voltage level . 58
Table B.2 – Summary of results for h = 5 voltage levels (V = 500 kV) . 59
Xmax
Table B.3 – Uncertainty budget of the assigned scale factor F . 60
X
Table B.4 – Uncertainty budget of the assigned scale factor F. 61
Table B.5 – Calibration result for front time T and deviations . 63
1
Table B.6 – Uncertainty budget of the front time deviation ΔT . 63
1cal

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SIST EN 60060-2:2011
– 6 – 60060-2 Ó IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

HIGH-VOLTAGE TEST TECHNIQUES –

Part 2: Measuring systems


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 60060-2 has been prepared by IEC technical committee 42: High-
voltage test techniques.
This third edition of IEC 60060-2 cancels and replaces the second edition, published in 1994,
and constitutes a technical revision.
The significant technical changes with respect to the previous edition are as follows:
a) The general layout and text was updated and improved to make the standard easier to
use.
b) The standard was revised to align it with IEC 60060-1.
c) The treatment of measurement uncertainty estimation has been expanded.

---------------------- Page: 12 ----------------------

SIST EN 60060-2:2011
60060-2 Ó IEC:2010 – 7 –
The text of this standard is based on the following documents:
FDIS Report on voting
42/281/FDIS 42/287/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.
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