SIST EN 60060-1:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Visokonapetostne preskusne tehnike - 1. del: Splošne definicije in preskusne zahteve (IEC 60060-1:2010)Hochspannungs-Prüftechnik - Teil 1: Allgemeine Begriffe und Prüfbedingungen (IEC 60060-1:2010)Technique des essais à haute tension - Partie 1: Définitions et exigences générales (CEI 60060-1:2010)High-voltage test techniques - Part 1: General definitions and test requirements (IEC 60060-1:2010)19.080SUHVNXãDQMHElectrical and electronic testingICS:Ta slovenski standard je istoveten z:EN 60060-1:2010SIST EN 60060-1:2011en01-februar-2011SIST EN 60060-1:2011SLOVENSKI
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SIST EN 60060-1:2011



EUROPEAN STANDARD EN 60060-1 NORME EUROPÉENNE
EUROPÄISCHE NORM December 2010
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60060-1:2010 E
ICS 17.220.20 Supersedes HD 588.1 S1:1991
English version
High-voltage test techniques -
Part 1: General definitions and test requirements (IEC 60060-1:2010)
Technique des essais à haute tension -
Partie 1: Définitions et exigences générales (CEI 60060-1:2010)
Hochspannungs-Prüftechnik -
Teil 1: Allgemeine Begriffe und Prüfbedingungen (IEC 60060-1:2010)
This European Standard was approved by CENELEC on 2010-12-01. 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.
SIST EN 60060-1:2011



EN 60060-1:2010 - 2 - Foreword The text of document 42/277/FDIS, future edition 3 of IEC 60060-1, prepared by IEC/TC 42, High-voltage testing techniques, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60060-1 on 2010-12-01. This European Standard supersedes HD 588.1 S1:1991. This EN 60060-1:2010 includes the following technical changes with respect to HD 588.1 S1:1991: – The general layout and text was updated and improved to make the standard easier to use. – Artificial pollution test procedures were removed as they are now described in EN 60507. – Measurement of impulse current has been transferred to a new standard on current measurement
(EN 62475). – The atmospheric correction factors are now presented as formulas. – A new method has been introduced for the calculation of the time parameters of lightning impulse waveforms. This improves the measurement of the time parameters of lightning impulses with oscillations or overshoot. 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)
2011-09-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2013-12-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 60060-1:2010 was approved by CENELEC as a European Standard without any modification. __________
SIST EN 60060-1:2011



- 3 - EN 60060-1:2010 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 60060-2 - High-voltage test techniques -
Part 2: Measuring systems EN 60060-2 -
IEC 60270 - High-voltage test techniques - Partial discharge measurements EN 60270 -
IEC 60507 1991 Artificial pollution tests on high-voltage insulators to be used on a.c. systems EN 60507 1993
IEC 61083-1 - Instruments and software used for measurement in high-voltage impulse tests - Part 1: Requirements for instruments EN 61083-1 -
IEC 61083-2 - Digital recorders for measurements in high-voltage impulse tests -
Part 2: Evaluation of software used for the determination of the parameters of impulse waveforms EN 61083-2 -
IEC 62475 - High-current test techniques - Definitions and requirements for test currents and measuring systems EN 62475 -
SIST EN 60060-1:2011



SIST EN 60060-1:2011



IEC 60060-1Edition 3.0 2010-09INTERNATIONAL STANDARD NORME INTERNATIONALEHigh-voltage test techniques –
Part 1: General definitions and test requirements
Technique des essais à haute tension –
Partie 1: Définitions et exigences générales
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XBICS 17.220.20 PRICE CODECODE PRIXISBN 978-2-88912-185-4
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ® SIST EN 60060-1:2011



– 2 – 60060-1 © IEC:2010 CONTENTS FOREWORD.5 1 Scope.7 2 Normative references.7 3 Terms and definitions.7 3.1 Definitions related to characteristics of discharges.8 3.2 Definitions relating to characteristics of the test voltage.8 3.3 Definitions relating to tolerance and uncertainty.9 3.4 Definitions relating to statistical characteristics of disruptive-discharge voltage values.9 3.5 Definitions relating to classification of insulation in test objects.10 4 General requirements.11 4.1 General requirements for test procedures.11 4.2 Arrangement of the test object in dry tests.11 4.3 Atmospheric corrections in dry tests.12 4.3.1 Standard reference atmosphere.12 4.3.2 Atmospheric correction factors for air gaps.12 4.3.3 Application of correction factors.13 4.3.4 Correction factor components.13 4.3.5 Measurement of atmospheric parameters.16 4.3.6 Conflicting requirements for testing internal and external insulation.17 4.4 Wet tests.18 4.4.1 Wet test procedure.18 4.4.2 Atmospheric corrections for wet tests.19 4.5 Artificial pollution tests.19 5 Tests with direct voltage.19 5.1 Definitions for direct voltage tests.19 5.2 Test voltage.20 5.2.1 Requirements for the test voltage.20 5.2.2 Generation of the test voltage.20 5.2.3 Measurement of the test voltage.20 5.2.4 Measurement of the test current.21 5.3 Test procedures.21 5.3.1 Withstand voltage tests.21 5.3.2 Disruptive-discharge voltage tests.22 5.3.3 Assured disruptive-discharge voltage tests.22 6 Tests with alternating voltage.22 6.1 Definitions for alternating voltage tests.22 6.2 Test Voltage.22 6.2.1 Requirements for the test voltage.22 6.2.2 Generation of the test voltage.23 6.2.3 Measurement of the test voltage.24 6.2.4 Measurement of the test current.25 6.3 Test procedures.25 6.3.1 Withstand voltage tests.25 6.3.2 Disruptive-discharge voltage tests.25 6.3.3 Assured disruptive-discharge voltage tests.25 SIST EN 60060-1:2011



60060-1 © IEC:2010 – 3 – 7 Tests with lightning-impulse voltage.26 7.1 Definitions for lightning-impulse voltage tests.26 7.2 Test Voltage.33 7.2.1 Standard lightning-impulse voltage.33 7.2.2 Tolerances.34 7.2.3 Standard chopped lightning-impulse voltage.34 7.2.4 Special lightning-impulse voltages.34 7.2.5 Generation of the test voltage.34 7.2.6 Measurement of the test voltage and determination of impulse shape.34 7.2.7 Measurement of current during tests with impulse voltages.35 7.3 Test Procedures.35 7.3.1 Withstand voltage tests.35 7.3.2 Procedures for assured disruptive-discharge voltage tests.36 8 Tests with switching-impulse voltage.36 8.1 Definitions for switching-impulse voltage tests.36 8.2 Test voltage.38 8.2.1 Standard switching-impulse voltage.38 8.2.2 Tolerances.38 8.2.3 Time-to-peak evaluation.38 8.2.4 Special switching-impulse voltages.38 8.2.5 Generation of the test voltage.38 8.2.6 Measurement of test voltage and determination of impulse shape.39 8.2.7 Measurement of current during tests with impulse voltages.39 8.3 Test procedures.39 9 Tests with combined and composite voltages.39 9.1 Definitions for combined- and composite-voltage tests.39 9.2.4 Tolerances.42 9.2.5 Generation.42 9.2.6 Measurement.42 9.3 Composite test voltages.43 9.3.1 Parameters.43 9.3.2 Tolerances.43 9.3.3 Generation.43 9.3.4 Measurement.43 9.4 Test procedures.43 Annex A (informative)
Statistical treatment of test results.45 Annex B (normative)
Procedures for calculation of parameters of standard lightning-impulse voltages with superimposed overshoot or oscillations.54 Annex C (informative)
Guidance for implementing software for evaluation of lightning-impulse voltage parameters.59 Annex D (informative)
Background to the introduction of the test voltage factor for evaluation of impulses with overshoot.62 Annex E (informative)
The iterative calculation method in the converse procedure for the determination of atmospheric correction factor.68 Bibliography.73
Figure 1 – Recommended minimum clearance D of extraneous live or earthed objects to the energized electrode of a test object, during an a.c. or positive switching impulse test at the maximum voltage U applied during test.12 SIST EN 60060-1:2011



– 4 – 60060-1 © IEC:2010 Figure 2 – k as a function of the ratio of the absolute humidity h to the relative air density δž (see
4.3.4.2 for limits of applicability).14 Figure 3 – Values of exponents m and w.16 Figure 4 – Absolute humidity of air as a function of dry- and wet-bulb thermometer readings.17 Figure 5 – Full lightning-impulse voltage.26 Figure 6 – Test voltage function.28 Figure 7 – Full impulse voltage time parameters.29 Figure 8 – Voltage time interval.30 Figure 9 – Voltage integral.30 Figure 10 – Lightning-impulse voltage chopped on the front.31 Figure 11 – Lightning-impulse voltage chopped on the tail.32 Figure 12 – Linearly rising front chopped impulse.32 Figure 13 – Voltage/time curve for impulses of constant prospective shape.33 Figure 14 – Switching-impulse voltage.37 Figure 15 – Circuit for a combined voltage test.40 Figure 16 – Schematic example for combined and composite voltage.41 Figure 17 – Circuit for a composite voltage test.42 Figure 18 – Definition of time delay Δt.43 Figure A.1 – Example of a multiple-level (Class 1) test.48 Figure A.2 – Examples of decreasing and increasing up-and-down (Class 2) tests for determination of 10 % and 90 % disruptive-discharge probabilities respectively.49 Figure A.3 – Examples of progressive stress (Class 3) tests.50 Figure B.1 – Recorded and base curve showing overshoot and residual curve.55 Figure B.2 – Test voltage curve (addition of base curve and filtered residual curve).55 Figure B.3 – Recorded and test voltage curves.56 Figure D.1 – “Effective” test voltage function in IEC 60060-1:1989.63 Figure D.2 – Representative experimental points from European experiments and test voltage function.65 Figure E.1 – Atmospheric pressure as a function of altitude.69
Table 1 – Values of exponents, m for air density correction and w for humidity correction, as a function of the parameter g.15 Table 2 – Precipitation conditions for standard procedure.19 Table A.1– Discharge probabilities in up-and-down testing.52 Table E.1 – Altitudes and air pressure of some locations.69 Table E.2 – Initial Kt and its sensitivity coefficients with respect to U50 for the example of the standard phase-to-earth a.c. test voltage of 395 kV.70 Table E.3 – Initial and converged Kt values for the example of the standard phase-to-earth a.c. test voltage of 395 kV.72
SIST EN 60060-1:2011



60060-1 © IEC:2010 – 5 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
HIGH-VOLTAGE TEST TECHNIQUES –
Part 1: General definitions and test requirements
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 60060-1 has been prepared by IEC technical committee 42: High-voltage test techniques. This third edition of IEC 60060-1 cancels and replaces the second edition, published in 1989, 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) Artificial pollution test procedures were removed as they are now described in IEC 60507.
c) Measurement of impulse current has been transferred to a new standard on current measurement (IEC 62475).
d) The atmospheric correction factors are now presented as formulas. SIST EN 60060-1:2011



– 6 – 60060-1 © IEC:2010 e) A new method has been introduced for the calculation of the time parameters of lightning impulse waveforms. This improves the measurement of the time parameters of lightning impulses with oscillations or overshoot. The text of this standard is based on the following documents: FDIS Report on voting 42/277/FDIS 42/282/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 60060 series, under the general title High-voltage test techniques, 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 website under "http://webstore.iec.ch" in the data related to this specific publication. At this date, the publication will be: • reconfirmed; • withdrawn; • replaced by a revised edition or • amended.
SIST EN 60060-1:2011



60060-1 © IEC:2010 – 7 – HIGH-VOLTAGE TEST TECHNIQUES –
Part 1: General definitions and test requirements
1 Scope This part of IEC 60060 is applicable to: –
dielectric tests with direct voltage; –
dielectric tests with alternating voltage; –
dielectric tests with impulse voltage; – dielectric tests with combinations of the above. This part is applicable to tests on equipment having its highest voltage for equipment Um above 1 kV. NOTE 1 Alternative test procedures may be required to obtain reproducible and significant results. The choice of a suitable test procedure should be made by the relevant Technical Committee. NOTE 2 For voltages Um above 800 kV meeting some specified procedures, tolerances and uncertainties may not be achievable. 2 Normative references 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. IEC 60060-2, High-voltage test techniques – Part 2: Measuring systems IEC 60270, High-voltage test techniques – Partial discharge measurements IEC 60507:1991, Artificial pollution tests on high-voltage insulators to be used on a.c. systems IEC 61083-1, Instruments and software used for measurement in high-voltage impulse tests – Part 1: Requirements for instruments IEC 61083-2, Digital recorders for measurements in high-voltage impulse tests – Part 2: Evaluation of software used for the determination of the parameters of impulse waveforms IEC 62475, High-current test techniques: Definitions and requirements for test currents and measuring systems 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. SIST EN 60060-1:2011



– 8 – 60060-1 © IEC:2010 3.1 Definitions related to characteristics of discharges 3.1.1
disruptive discharge failure of insulation under electric stress, in which the discharge completely bridges the insulation under test, reducing the voltage between electrodes to practically zero NOTE 1 Non-sustained disruptive discharge in which the test object is momentarily bridged by a spark or arc may occur. During these events the voltage across the test object is momentarily reduced to zero or to a very small value. Depending on the characteristics of the test circuit and the test object, a recovery of dielectric strength may occur and may even allow the test voltage to reach a higher value. Such an event should be interpreted as a disruptive discharge unless otherwise specified by the relevant Technical Committee. NOTE 2 A disruptive discharge in a solid dielectric produces permanent loss of dielectric strength; in a liquid or gaseous dielectric the loss may be only temporary. 3.1.2
sparkover disruptive discharge that occurs in a gaseous or liquid dielectric 3.1.3
flashover disruptive discharge that occurs over the surface of a dielectric in a gaseous or liquid dielectric 3.1.4
puncture disruptive discharge that occurs through a solid dielectric 3.1.5
disruptive-discharge voltage value of a test object value of the test voltage causing disruptive discharge, as specified, for the various tests, in the relevant clauses of the present standard 3.1.6
non-disruptive discharge discharge between intermediate electrodes or conductors where the test voltage does not collapse to zero NOTE 1 Such an event should not be interpreted as a disruptive discharge unless so specified by the relevant Technical Committee. NOTE 2 Some non-disruptive discharges are termed “partial discharges” and are dealt with in IEC 60270. 3.2 Definitions relating to characteristics of the test voltage 3.2.1
prospective characteristics of a test voltage characteristics which would have been obtained if no disruptive discharge had occurred. When a prospective characteristic is used, th
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