EN 62475:2010
(Main)High-current test techniques - Definitions and requirements for test currents and measuring systems
High-current test techniques - Definitions and requirements for test currents and measuring systems
IEC 62475:2010 is applicable to high-current testing and measurements on both high-voltage and low-voltage equipment. It deals with steady-state and short-time direct current (as e.g. encountered in high-power d.c. testing), steady-state and short-time alternating current (as e.g. encountered in high-power a.c. testing), and impulse-current. In general, currents above 100 A are considered in this International Standard, although currents less than this can occur in tests. This standard also covers fault detection during, for example, lightning impulse testing.
Hochstrom-Prüftechnik - Begriffe und Anforderungen für Hochstrom-Messungen
Techniques des essais à haute intensité - Définitions et exigences relatives aux courants d'essai et systèmes de mesure
La CEI 62475:2010 s'applique aux essais et mesures à haute intensité sur des matériels haute et basse tensions. Elle couvre les essais à haute intensité en courant continu et courant alternatif en régime établi et de courte durée ainsi que des essais de courant de choc. De manière générale, la présente Norme internationale prend en compte des courants de plus de 100 A, même si des intensités moindres peuvent apparaître dans les essais. La présente norme couvre également la détection de défauts, comme par exemple dans le cadre d'essais aux chocs de foudre.
Visokotokovne preskusne tehnike - Definicije in zahteve za preskusne toke in merilne sisteme (IEC 62475:2010)
Ta mednarodni standard velja za visokotokovno preskušanja in merjenja za visokonapetostno in nizkonapetostno opremo. Obravnava ustaljeni in kratkotrajni enosmerni tok (kot je npr. pri preskušanju visokonapetostnega enosmernega toka), ustaljeni in kratkotrajni izmenični tok (kot je npr. pri preskušanju visokonapetostnega izmeničnega toka) ter impulzni tok. Na splošno se v tem mednarodnem standardu obravnavajo tokovi nad 100 A, čeprav se lahko v preskusih pojavijo manjši tokovi. Ta standard: - opredeljuje uporabljene izraze; - opredeljuje parametre in njihova odstopanja; - opisuje metode za ocenjevanje negotovosti meritev visokega toka; navaja zahteve, ki jih mora izpolnjevati celotni 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
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2011
Visokotokovne preskusne tehnike - Definicije in zahteve za preskusne toke in
merilne sisteme (IEC 62475:2010)
High-current test techniques - Definitions and requirements for test currents and
measuring systems (IEC 62475:2010)
Hochstrom-Prüftechnik - Begriffe und Anforderungen für Hochstrom-Messungen (IEC
62475:2010)
Techniques des essais à haute intensité - Définitions et exigences relatives aux courants
d'essai et systèmes de mesure (CEI 62475:2010)
Ta slovenski standard je istoveten z: EN 62475:2010
ICS:
19.080 (OHNWULþQRLQHOHNWURQVNR Electrical and electronic
SUHVNXãDQMH testing
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 62475
NORME EUROPÉENNE
December 2010
EUROPÄISCHE NORM
ICS 19.080
English version
High-current test techniques -
Definitions and requirements for test currents and measuring systems
(IEC 62475:2010)
Techniques des essais à haute intensité - Hochstrom-Prüftechnik -
Définitions et exigences relatives aux Begriffe und Anforderungen für
courants d'essai et systèmes de mesure Hochstrom-Messungen
(CEI 62475:2010) (IEC 62475:2010)
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.
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 62475:2010 E
Foreword
The text of document 42/278/FDIS, future edition 1 of IEC 62475, prepared by IEC TC 42, High-voltage
testing techniques, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 62475 on 2010-12-01.
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
(dop) 2011-09-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-12-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62475:2010 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 60076-5:2000 NOTE Harmonized as EN 60076-5:2000 (not modified).
IEC 60099-4:2004 NOTE Harmonized as EN 60099-4:2004 (modified).
IEC 60265-1:1998 NOTE Harmonized as EN 60265-1:1998 (not modified).
IEC 60282-1:2009 NOTE Harmonized as EN 60282-1:2009 (not modified).
IEC 60947-1:2007 NOTE Harmonized as EN 60947-1:2007 (not modified).
IEC 60947-2:2006 NOTE Harmonized as EN 60947-2:2006 (not modified).
IEC 60947-3:2008 NOTE Harmonized as EN 60947-3:2009 (not modified).
IEC 61000-4-5 NOTE Harmonized as EN 61000-4-5.
IEC 61083-1:2001 NOTE Harmonized as EN 61083-1:2001 (not modified).
IEC 61083-2:1996 NOTE Harmonized as EN 61083-2:1997 (not modified).
IEC 61180-2:1994 NOTE Harmonized as EN 61180-2:1994 (not modified).
IEC 61230:2008 NOTE Harmonized as EN 61230:2008 (not modified).
IEC 61643-11 NOTE Harmonized as EN 61643-11.
IEC 61643-21 NOTE Harmonized as EN 61643-21.
IEC 62271-1 NOTE Harmonized as EN 62271-1.
IEC 62271-100:2008 NOTE Harmonized as EN 62271-100:2009 (not modified).
IEC 62271-101 NOTE Harmonized as EN 62271-101.
IEC 62271-102:2001 NOTE Harmonized as EN 62271-102:2002 (not modified).
- 3 - EN 62475:2010
IEC 62271-103 NOTE Harmonized as EN 62271-103.
IEC 62271-104 NOTE Harmonized as EN 62271-104.
IEC 62271-105 NOTE Harmonized as EN 62271-105.
IEC 62271-110:2009 NOTE Harmonized as EN 62271-110:2009 (not modified).
IEC 62305-1 NOTE Harmonized as EN 62305-1.
ISO/IEC 17025:2005 NOTE Harmonized as EN ISO/IEC 17025:2005 (not modified).
__________
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 60051-2 1984 Direct acting indicating analogue electrical EN 60051-2 1989
measuring instruments and their accessories -
Part 2: Special requirements for ammeters
and voltmeters
IEC 60060-1 2010 High-voltage test techniques - EN 60060-1 2010
Part 1: General definitions and test
requirements
IEC 61180-1 - High-voltage test techniques for low-voltage EN 61180-1 -
equipment -
Part 1: Definitions, test and procedure
requirements
ISO/IEC Guide 98-3 2008 Uncertainty of measurement - - -
Part 3: Guide to the expression of uncertainty
in measurement (GUM:1995)
IEC 62475 ®
Edition 1.0 2010-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-current test techniques – Definitions and requirements for test currents
and measuring systems
Techniques des essais à haute intensité – Définitions et exigences relatives
aux courants d'essai et systèmes de mesure
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XE
CODE PRIX
ICS 19.080 ISBN 978-2-88912-184-7
– 2 – 62475 © IEC:2010
CONTENTS
FOREWORD.8
1 Scope.10
2 Normative references .10
3 Terms and definitions .10
3.1 Measuring systems.11
3.2 Components of a measuring system .11
3.3 Scale factors .12
3.4 Rated values .13
3.5 Definitions related to the dynamic behaviour .13
3.6 Definitions related to uncertainty .14
3.7 Definitions related to tests on measuring systems .16
4 Procedures for qualification and use of a measuring system.17
4.1 General principles .17
4.2 Schedule of performance tests .17
4.3 Schedule of performance checks.17
4.4 Requirements for the record of performance.18
4.4.1 Contents of the record of performance.18
4.4.2 Exceptions.18
4.5 Operating conditions .18
4.6 Uncertainty.19
5 Tests and test requirements for an approved measuring system.20
5.1 General requirements.20
5.2 Calibration – Determination of the scale factor .20
5.2.1 Calibration of a measuring system by comparison with a reference
measuring system (preferred method) .20
5.2.2 Determination of the scale factor of a measuring system from those
of its components .24
5.3 Linearity test .25
5.3.1 Application .25
5.3.2 Alternative methods in order of suitability .26
5.4 Dynamic behaviour.26
5.5 Short-term stability .27
5.5.1 Method .27
5.5.2 Steady-state current .27
5.5.3 Impulse current and short-time current .28
5.5.4 Periodic impulse current and periodic short-time current.28
5.6 Long-term stability.29
5.7 Ambient temperature effect .29
5.8 Effect of nearby current paths .30
5.9 Software effect .32
5.10 Uncertainty calculation .32
5.10.1 General .32
5.10.2 Uncertainty of calibration .32
5.10.3 Uncertainty of measurement using an approved measuring system .33
5.11 Uncertainty calculation of time-parameter measurements (impulse currents
only).34
5.11.1 General .34
62475 © IEC:2010 – 3 –
5.11.2 Uncertainty of the time-parameter calibration.34
5.11.3 Uncertainty of a time-parameter measurement using an approved
measuring system .35
5.12 Interference test .36
5.12.1 Application .36
5.12.2 Current-converting shunts and current transformers with iron .37
5.12.3 Inductive measuring systems without iron (Rogowski coils) .38
5.13 Withstand tests .38
5.13.1 Voltage withstand tests.38
5.13.2 Current withstand tests.39
6 Steady-state direct current .39
6.1 Application .39
6.2 Terms and definitions .39
6.3 Test current.39
6.3.1 Requirements .39
6.3.2 Tolerances .
...
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