EN 62052-21:2004/A1:2017

Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment

Specifies general requirements for the type test of newly manufactured indoor tariff and load control equipment, like electronic ripple control receivers and time switches that are used to control electrical loads, multi-tariff registers and maximum demand indicator devices.

Wechselstrom-Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und Prüfbedingungen - Teil 21: Einrichtungen für Tarif- und Laststeuerung

Équipement de comptage de l'électricité - Prescriptions générales, essais et conditions d'essai - Partie 21: Equipement de tarification et de contrôle de charge

Le contenu du corrigendum de mars 2018 a été pris en considération dans cette exemplaire.

Oprema za merjenje električne energije (izmenični tok) - Splošne zahteve, preskusi in pogoji preskušanja - 21. del: Oprema za krmiljenje tarif in bremen - Dopolnilo A1

General Information

• Status: Published
• Publication Date: 23-Feb-2017
• Withdrawal Date: 27-Dec-2020
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: CLC/TC 13 - Equipment for electrical energy measurement and load control
• Drafting Committee: IEC/TC 13 - IEC_TC_13
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 24-Feb-2017
• Completion Date: 24-Feb-2017
• Directive: 2004/108/EC - Directive 2004/108/EC of the European Parliament and of the Council of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2004/108/EU - DIRECTIVE 2004/108/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC
• Directive: 2014/30/EU - Directive 2014/30/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 electromagnetic compatibility (recast)
• Mandate: M/404 - Standardisation Mandate to CEN, CENELEC and ETSI for harmonized standard according to the Electro Magnetic Compatibility (EMC) Directive 2004/108/EC
• Ref Project: SIST EN 62052-21:2005/A1:2017 - Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment

Relations

• Amends: EN 62052-21:2004 - Electricity metering equipment (a.c.) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment
• Effective Date: 28-Apr-2015
• Corrected By: EN 62052-21:2004/A1:2017/AC:2018-04 - Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 21: Tariff and load control equipment
• Effective Date: 03-Apr-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2017
2SUHPD]DPHUMHQMHHOHNWULþQHHQHUJLMHL]PHQLþQLWRN6SORãQH]DKWHYHSUHVNXVL
LQSRJRMLSUHVNXãDQMDGHO2SUHPD]DNUPLOMHQMHWDULILQEUHPHQ'RSROQLOR$
Electricity metering equipment (AC) - General requirements, tests and test conditions -
Part 21: Tariff and load control equipment
Wechselstrom-Elektrizitätszähler - Allgemeine Anforderungen, Prüfungen und
Prüfbedingungen - Teil 11: Messeinrichtungen
Équipement de comptage de l'électricité - Prescriptions générales, essais et conditions
d'essai - Partie 21: Equipement de tarification et de contrôle de charge
Ta slovenski standard je istoveten z: EN 62052-21:2004/A1:2017
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 62052-21:2004/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 91.140.50
English Version
Electricity metering equipment (AC) - General requirements,
tests and test conditions - Part 21: Tariff and load control
equipment
(IEC 62052-21:2004/A1:2016)
Équipement de comptage de l'électricité - Prescriptions Wechselstrom-Elektrizitätszähler - Allgemeine
générales, essais et conditions d'essai - Partie 21: Anforderungen, Prüfungen und Prüfbedingungen - Teil 21:
Equipement de tarification et de contrôle de charge Einrichtungen für Tarif- und Laststeuerung
(IEC 62052-21:2004/A1:2016) (IEC 62052-21:2004/A1:2016)
This amendment A1 modifies the European Standard EN 62052-21:2004; it was approved by CENELEC on 2016-12-28. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62052-21:2004/A1:2017 E

European foreword
The text of document 13/1702/FDIS, future IEC 62052-21:2004/A1, 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 62052-21:2004/A1:2017.

The following dates are fixed:
(dop) 2017-09-28
• 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) 2019-12-28
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.
Endorsement notice
The text of the International Standard IEC 62052-21:2004/A1:2016 was approved by CENELEC as a
European Standard without any modification.
In the Bibliography of EN 62052-21:2004, the following note has to be added for the standard
indicated:
IEC 62058-11:2008 NOTE Harmonized as EN 62058-11:2010.

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 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Delete:
Publication Year Title EN/HD Year
IEC 60060-1 1989 High-voltage test techniques -- Part 1: - -
General definitions and test requirements
IEC 60068-2-75 1997 Environmental testing -- Part 2-75: Tests - EN 60068-2-75 1997
Test Eh: Hammer tests
IEC 60085 1984 Thermal evaluation and classification of - -
electrical insulation
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- -  + corrigendum May 1993
IEC 60695-2-10 2000 Fire hazard testing -- Part 2-10: - -
Glowing/hot-wire based test methods -
Glow-wire apparatus and common test
procedure
IEC 60695-2-11 2000 Fire hazard testing -- Part 2-11: EN 60695-2-11 2001
Glowing/hot-wire based test methods -
Glow-wire flammability test method for
end-products
ISO 75-2 -  Plastics - Determination of temperature of - -
deflection under load -- Part 2: Plastics and
ebonite
Addition:
Publication Year Title EN/HD Year
IEC 62052-31 2015 Electricity metering equipment (AC) - EN 62052-31 2016
General requirements, tests and test
conditions - Part 31: Product safety
requirements and tests
IEC 62052-21 ®
Edition 1.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Electricity metering equipment (a.c.) – General requirements, tests and test

conditions –
Part 21: Tariff and load control equipment

Équipement de comptage d’électricité (c.a.) – Prescriptions générales, essais

et conditions d’essai –
Partie 21: Equipement de tarification et de contrôle de charge

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 91.140.50 ISBN 978-2-8322-3674-1

– 2 – IEC 62052-21:2004/AMD1:2016
 IEC 2016
FOREWORD
This amendment has been prepared by IEC technical committee 13: Electrical energy
measurement and control.
The text of this amendment is based on the following documents:
FDIS Report on voting
13/1702/FDIS 13/1716/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base 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.
NOTE The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation
nationally not earlier than 2 years from the date of publication.

_____________
INTRODUCTION TO AMENDMENT 1
The purpose of this amendment is to identify and remove all safety related requirements and
tests of IEC 62052-21:2004 that are replaced and extended by the complete set of
requirements and tests in IEC 62052-31:2015.
In addition, Annex F has been amended to refer to IEC 62058-11:2008 instead of IEC 60410
which has been withdrawn.
Introduction
Add the following to the list of standards:
IEC 62052-31:2015, Electricity metering equipment (AC) – General requirements, tests and
test conditions – Part 31: Product safety requirements and tests

IEC 62052-21:2004/AMD1:2016 – 3 –
 IEC 2016
1 Scope
Add the following after the fourth paragraph:
The safety aspect is covered by IEC 62052-31:2015.
2 Normative references
Add the following standard:
IEC 62052-31:2015, Electricity metering equipment (AC) – General requirements, tests and
test conditions – Part 31: Product safety requirements and tests
Remove the following standards:
IEC 60060-1:1989, High-voltage test techniques – Part 1: General definitions and test
requirements
IEC 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
IEC 60085:1984, Thermal evaluation and classification of electrical insulation
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60695-2-10:2000, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods –
Glow-wire apparatus and common test procedures
IEC 60695-2-11:2000, Fire hazard testing – Part 2-11: Glowing/hot-wire based test methods
Glow-wire flammability test method for end-products
ISO 75-2:1993, Plastics – Determination of temperature of deflection under load – Part 2:
Plastic and ebonite
Add the following note:
NOTE Some standards referenced in IEC 62052-11:2003 have been revised or replaced, but these changes will
be considered in the full revision of this standard.
3 Terms and definitions
3.5 Definitions related to the output elements
3.5.6
rated breaking voltage
Replace the existing definition by:
See IEC 62052-31:2015, 6.9.8.2.2.
3.5.7
rated breaking current
Replace the existing definition by:
See IEC 62052-31:2015, 3.7.8, (breaking current) and 3.7.9, (breaking capacity).

– 4 – IEC 62052-21:2004/AMD1:2016
 IEC 2016
3.5.8
maximum total current
Replace the existing definition by:
See IEC 62052-31:2015, 3.7.5.
3.6 Definitions of mechanical elements
3.6.4
case
Replace the existing definition by:
See IEC 62052-31:2015, 3.2.5.
3.6.5
accessible conductive part
Replace the existing definition by:
See IEC 62052-31:2015, 3.5.1.
3.6.6
protective earth terminal
Replace the existing definition by:
See IEC 62052-31:2015, 3.2.8 (protective conductor terminal).
3.6.8
terminal cover
Replace the existing definition by:
See IEC 62052-31:2015, 3.2.6.
Delete the following two definitions:
3.6.9
clearance
3.6.10
creepage distance
3.7 Definitions of insulations
Replace the existing definitions 3.7.1 to 3.7.6 by:
See IEC 62052-31:2015, 3.6.
3.9 Definition of tests
type test
Add the following at the end of the definition:
See also IEC 62052-31:2015, 3.4.1.

IEC 62052-21:2004/AMD1:2016 – 5 –
 IEC 2016
5 Mechanical requirements and tests
5.1 General mechanical requirements
Replace the first paragraph and the dashed items by the following:
Tariff and load control equipment shall be designed and constructed in such a way as to avoid
introducing any danger in normal use and under normal conditions, so as to ensure
especially:
• protection against electrical shock, see IEC 62052-31:2015, Clause 6;
• protection against mechanical hazards and stresses, see IEC 62052-31:2015, Clauses 7
and 8;
• protection against spread of fire, see IEC 62052-31:2015, Clause 9;
• personal safety against effects of excessive temperature, see IEC 62052-31:2015, Clause
10;
• protection against penetration of dust and water, see IEC 62052-31:2015, Clause 11;
• protection against liberated gases and substances, explosion and implosion, see
IEC 62052-31:2015, Clause 12.
Add the the following at the end of the last paragraph:
See also IEC 62052-31:2015, 6.5.2.2, 6.9.1 and 6.9.7.3.
5.2 Case
5.2.1 Requirements
Delete the last paragraph.
5.2.2 Mechanical tests
5.2.2.1 Spring hammer test
Replace the existing text by:
The test shall be performed as part of safety testing, as specified in IEC 62052-31:2015, 8.2.
5.4 Terminals, terminal block(s), protective earth terminal
Replace the existing text by:
See IEC 62052-31:2015, 6.5.2, 6.9.5 and 6.9.7.
5.5 Terminal cover(s)
Replace the existing text by:
See IEC 62052-31:2015, 6.9.4.
5.6 Clearance and creepage distances
Replace the existing text by:
See IEC 62052-31:2015, 6.7.
– 6 – IEC 62052-21:2004/AMD1:2016
 IEC 2016
5.7 Insulating encased tariff and load control equipment of protective class II
Replace the existing text by:
See IEC 62052-31:2015:
• 3.6.8, (Protective) class II equipment;
• 5.4.5.1, Protective class and earthing;
• 6.5.2, Protective bonding;
• 6.8 Insulation requirements between circuits and parts, and Annex B, Examples for
insulation between parts;
• 6.9.2, Insulating materials.
5.8 Resistance to heat and fire
Replace the existing text by:
See IEC 62052-31:2015, Clause 9.
5.9 Protection against penetration of dust and water
Repla
...