SIST EN 62059-32-1:2012

Electricity metering equipment - Dependability - Part 32-1: Durability - Testing of the stability of metrological characteristics by applying elevated temperature (IEC 62059-32-1:2011)

The stability of metrological characteristics is one important aspect of durability. This part of IEC 62059 specifies a method for testing the stability of metrological characteristics of electricity meters, by operating a test specimen at the upper limit of the specified operating range of temperature, voltage and current for an extended period. Functional performance other than the accuracy of energy measurement is out of the scope of this standard. Note, that from the results of this test, no conclusion can be drawn for the length of period during which the stability of the metrological characteristics will be maintained when the meter is operated under usual conditions. This International Standard is applicable to all types of electricity meters in the scope of IEC TC 13.

Elektrizitätszähler - Zuverlässigkeit - Teil 32-1: Haltbarkeit - Prüfung der Stabilität der metrologischen Eigenschaften unter Anwendung erhöhter Temperatur (IEC 62059-32-1:2011)

Appareils de comptage d'électricité - Sûreté de fonctionnement - Partie 32-1: Durabilité - Contrôle de stabilité des caractéristiques métrologiques en appliquant une température élevée (CEI 62059-32-1:2011)

La CEI 62059-32-1:2011 spécifie une méthode pour les essais de stabilité des caractéristiques métrologiques des compteurs d'électricité, en faisant fonctionner un exemplaire d'essai à la limite supérieure de la température, de la tension et du courant dans le domaine de fonctionnement spécifié, pendant une durée prolongée.

Oprema za merjenje električne energije - Zagotovljivost - 32-1. del: Trajnost - Preskušanje stabilnosti meteoroloških karakteristik s povišano temperaturo (IEC 62059-32-1:2011)

Stabilnost meteoroloških karakteristik je pomemben vidik trajnosti. Ta del standarda IEC 62059 določa metodo za preskušanje stabilnosti meteoroloških karakteristik števcev električne energije, tako da preskušanec daljše obdobje deluje pri zgornji meji območja delovanja, kar zadeva temperaturo, napetost in tok. Funkcijska zmogljivost, razen točnosti merjenja električne energije, ne spada v področje uporabe tega standarda. Upoštevati je treba, da zaključki glede dolžine obdobja, v katerem se ohrani stabilnost meteoroloških karakteristik, kadar števec deluje v običajnih pogojih, na podlagi rezultatov tega preskusa niso mogoči. Ta mednarodni standard se uporablja za vse vrste števcev električne energije, ki spadajo v področje uporabe IEC TC 13.

General Information

• Status: Published
• Publication Date: 10-Apr-2012
• ICS: 17.220.20 - Measurement of electrical and magnetic quantities
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: MEE - Equipment for electrical energy measurement and load control
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Mar-2012
• Due Date: 02-Jun-2012
• Completion Date: 11-Apr-2012
• Directive: 2004/22/EC - Directive 2004/22/EC of the European Parliament and of the Council of 31 March 2004 on measuring instruments
• Directive: 2014/32/EU - Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of measuring instruments
• Ref Project: EN 62059-32-1:2012 - Electricity metering equipment - Dependability - Part 32-1: Durability - Testing of the stability of metrological characteristics by applying elevated temperature

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 62059-32-1:2012
01-maj-2012
2SUHPD]DPHUMHQMHHOHNWULþQHHQHUJLMH=DJRWRYOMLYRVWGHO7UDMQRVW
3UHVNXãDQMHVWDELOQRVWLPHWHRURORãNLKNDUDNWHULVWLNVSRYLãDQRWHPSHUDWXUR,(&

Electricity metering equipment - Dependability - Part 32-1: Durability - Testing of the
stability of metrological characteristics by applying elevated temperature (IEC 62059-32-
1:2011)
Elektrizitätszähler - Zuverlässigkeit - Teil 32-1: Haltbarkeit - Prüfung der Stabilität der
metrologischen Eigenschaften unter Anwendung erhöhter Temperatur (IEC 62059-32-
1:2011)
Appareils de comptage d'électricité - Sûreté de fonctionnement - Partie 32-1: Durabilité -
Contrôle de stabilité des caractéristiques métrologiques en appliquant une température
élevée (CEI 62059-32-1:2011)
Ta slovenski standard je istoveten z: EN 62059-32-1:2012
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
SIST EN 62059-32-1:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62059-32-1:2012

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SIST EN 62059-32-1:2012

EUROPEAN STANDARD
EN 62059-32-1

NORME EUROPÉENNE
March 2012
EUROPÄISCHE NORM

ICS 17.220; 19.020; 91.140.50


English version


Electricity metering equipment -
Dependability -
Part 32-1: Durability -
Testing of the stability of metrological characteristics by applying
elevated temperature
(IEC 62059-32-1:2011)


Appareils de comptage d'électricité -  Elektrizitätszähler -
Sûreté de fonctionnement - Zuverlässigkeit -
Partie 32-1: Durabilité - Teil 32-1: Haltbarkeit -
Contrôle de stabilité des caractéristiques Prüfung der Stabilität der metrologischen
métrologiques en appliquant une Eigenschaften unter Anwendung erhöhter
température élevée Temperatur
(CEI 62059-32-1:2011) (IEC 62059-32-1:2011)



This European Standard was approved by CENELEC on 2012-01-11. 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, 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


© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62059-32-1:2012 E

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SIST EN 62059-32-1:2012
EN 62059-32-1:2012 - 2 -
Foreword
The text of document 13/1483/FDIS, future edition 1 of IEC 62059-32-1, prepared by IEC/TC 13,
"Electrical energy measurement, tariff- and load control", was submitted to the IEC-CENELEC parallel
vote and approved by CENELEC as EN 62059-32-1:2012.

The following dates are fixed:
(dop) 2012-10-11
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-01-11
• latest date by which the national
standards conflicting with the
document have to be withdrawn

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.

This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).

For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 62059-32-1:2011 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 62053-11:2003 NOTE  Harmonized as EN 62053-11:2003 (not modified).
IEC 62053-22:2003 NOTE  Harmonized as EN 62053-22:2003 (not modified).
IEC 62053-23:2003 NOTE  Harmonized as EN 62053-23:2003 (not modified).
IEC 62055-31:2005 NOTE  Harmonized as EN 62055-31:2005 ((not modified).

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SIST EN 62059-32-1:2012
- 3 - EN 62059-32-1:2012
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 60068-2-2 2007 Environmental testing - EN 60068-2-2 2007
Part 2-2: Tests - Test B: Dry heat


IEC 62052-11 2003 Electricity metering equipment (AC) - General EN 62052-11 2003
requirements, tests and test conditions -
Part 11: Metering equipment


IEC 62053-21 2003 Electricity metering equipment (a.c.) - EN 62053-21 2003
Particular requirements -
Part 21: Static meters for active energy
(classes 1 and 2)

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SIST EN 62059-32-1:2012
EN 62059-32-1:2012 - 4 -

Annex ZZ
(informative)

Coverage of Essential Requirements of EU Directives

This European Standard has been prepared under the mandate M/374 given to CENELEC by the
European Commission and within its scope, this part 32-1 of EN 62059 specifies a method for
testing the stability of metrological characteristics of electricity meters, suitable for verification of
conformity with the durability requirements.
The standard covers the Essential Requirement 5, Durability, Annex I of the Directive
2004/22/EC of the European Parliament and of the council of 31 March 2004 on measuring
instruments (MID):
“A measuring instrument shall be designed to maintain an adequate stability of its metrological
characteristics over a period of time estimated by the manufacturer, provided that it is properly
installed, maintained and used according to the manufacturer's instruction when in the
environmental conditions for which it is intended.”
Compliance with this standard provides one means of conformity with the specified essential
requirements of the Directives concerned.
WARNING - Other requirements and other EU Directives may be applicable to the products
falling within the scope of this standard.

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SIST EN 62059-32-1:2012
IEC 62059-32-1
®

Edition 1.0 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Electricity metering equipment – Dependability –
Part 32-1: Durability – Testing of the stability of metrological characteristics by
applying elevated temperature

Appareils de comptage de l'électricité – Sûreté de fonctionnement –
Partie 32-1: Durabilité – Contrôle de stabilité des caractéristiques métrologiques
en appliquant une température élevée

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 17.220; 19.020; 91.140.50 ISBN 978-2-88912-827-3

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 62059-32-1:2012
– 2 – 62059-32-1  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General . 7
5 Initial measurements . 7
6 Conditioning . 7
7 Intermediate measurements – verification of energy measurement and registration . 9
7.1 General . 9
7.2 Method A: Test method using a reference meter. 9
7.2.1 Test conditions . 9
7.2.2 Test using a reference standard meter . 10
7.2.3 Test using a reference meter of the same type as the MUT . 10
7.3 Method B: Test method using a stable load . 11
7.4 Final temperature ramp . 12
8 Recovery . 12
9 Final measurements and acceptance criteria . 12
10 Information to be given in the test report . 13
Bibliography . 14

Table 1 – Limits of change in percentage error at I . 13
max

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SIST EN 62059-32-1:2012
62059-32-1  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

ELECTRICITY METERING EQUIPMENT –
DEPENDABILITY –

Part 32-1: Durability –
Testing of the stability of metrological characteristics
by applying elevated temperature


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 62059-32-1 has been prepared by IEC technical committee 13:
Electrical energy measurement, tariff- and load control.
The text of this standard is based on the following documents:
FDIS RVD
13/1483/FDIS 13/1493/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.

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SIST EN 62059-32-1:2012
– 4 – 62059-32-1  IEC:2011
A list of all parts of IEC 62059 series, under the general title Electricity metering equipment –
Dependability, 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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SIST EN 62059-32-1:2012
62059-32-1  IEC:2011 – 5 –
INTRODUCTION
Electricity meters are products designed for high reliability and durability to operate
continuously for extended periods without supervision.
To manage metering assets effectively, it is important to have tools for predicting and
estimating life characteristics of various types.
IEC 62059-41 provides methods for predicting the failure rate – assumed to be constant – of
metering equipment, based on the parts stress method.
IEC 62059-31-1 provides a method for estimating life characteristics using accelerated
reliability testing by operating the test specimens at elevated temperature and humidity.
Future parts of IEC 62059-31 may be established to cover accelerated reliability testing,
applying other stresses.
This standard, IEC 62059-32-1 provides a test method to evaluate one important aspect of
durability, the stability of metrology characteristics, by operating a test specimen at the upper
limit of the specified operating range of temperature, voltage and current for an extended
period. Future parts of IEC 62059-32 may be established to cover other kinds of stress or
other aspects of durability.

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SIST EN 62059-32-1:2012
– 6 – 62059-32-1  IEC:2011
ELECTRICITY METERING EQUIPMENT –
DEPENDABILITY –

Part 32-1: Durability –
Testing of the stability of metrological characteristics
by applying elevated temperature



1 Scope
The stability of metrological characteristics is one important aspect of durability.
This part of IEC 62059 specifies a method for testing the stability of metrological
characteristics of electricity meters, by operating a test specimen at the upper limit of the
specified operating range of temperature, voltage and current for an extended period.
Functional performance other than the accuracy of energy measurement is out of the scope of
this standard.
Note, that from the results of this test, no conclusion can be drawn for the length of period
during which the stability of the metrological characteristics will be maintained when the meter
is operated under usual conditions.
This International Standard is applicable to all types of electricity meters in the scope of IEC
TC 13.
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 60068-2-2:2007, Environmental testing – Part 2-2: Tests – Test B: Dry heat
IEC 62052-11:2003, Electricity metering equipment (AC) – General requirements, tests and
test conditions – Part 11: Metering equipment
...