EN IEC 60379:2023
(Main)Methods for measuring the performance of electric storage water heaters for household purposes
Methods for measuring the performance of electric storage water heaters for household purposes
This Standard specifies methods for measuring the performance of electric storage water heaters to produce domestic potable or non-potable hot water for household and similar use. The object is to state and define the principal performance characteristics of electric storage water heaters and to describe the test methods for measuring these characteristics. NOTE 1 This standard does not apply to; - storage water heaters that use electricity as a secondary source of heating the water; - storage water heaters that do not use a tank to storage hot water; - electric storage water heaters that do not meet the minimum (or maximum) output performance of the smallest (or biggest) load profile, as defined in Table 4. - water-heaters without thermal insulation NOTE 2 This standard does not specify safety requirements. For safety requirements see IEC 60335-1 in conjunction with IEC 60335-2-21.
Verfahren zur Messung der Gebrauchseigenschaften von elektrischen Warmwasserspeichern für den Hausgebrauch
Méthodes de mesure de l'aptitude à la fonction des chauffe-eau électriques à accumulation à usages domestiques
L'IEC 60379:2023 spécifie les méthodes de mesure de l'aptitude à la fonction des chauffe-eau électriques à accumulation pour produire de l'eau chaude sanitaire potable ou non potable pour usages domestiques et analogues. L'objet du présent document est d'établir et de définir les caractéristiques de performance principales des chauffe-eau électriques à accumulation et de décrire les méthodes d'essai utilisées pour mesurer ces caractéristiques. Le présent document ne s'applique pas: - aux chauffe-eau à accumulation qui utilisent l'électricité comme source secondaire pour chauffer l'eau; - aux chauffe-eau à accumulation qui n'utilisent pas de ballon pour stocker l'eau chaude; - aux chauffe-eau électriques à accumulation qui ne remplissent pas les caractéristiques de sortie minimales (ou maximales) du profil de charge le plus faible (ou le plus élevé), qui est défini dans le Tableau 3; - aux chauffe-eau sans isolation thermique. Le présent document ne spécifie pas les exigences de sécurité. Pour les exigences de sécurité, consulter l'IEC 60335-1 conjointement avec l'IEC 60335-2-21. Cette quatrième édition annule et remplace la troisième édition parue en 1987. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: prise en compte des aspects de la réglementation UE en matière de développement durable, notamment les fonctions telles que la commande intelligente, la modification de V40 et les procédures de mesurage relatives aux appareils à ballons multiples.
Metode za merjenje električnih lastnosti akumulacijskih grelnikov vode za uporabo v gospodinjstvu (IEC 60379:2023)
Ta standard določa metode za merjenje učinkovitosti električnih akumulacijskih grelnikov vode za pripravo pitne in nepitne tople vode za gospodinjstva in za podobno uporabo.
Namen je navesti in opredeliti glavne značilnosti delovanja električnih akumulacijskih grelnikov vode ter opisati preskusne metode za merjenje teh značilnosti.
OPOMBA 1: Ta standard se ne uporablja za:
- akumulacijske grelnike vode, ki uporabljajo elektriko kot pomožni vir ogrevanja vode;
- akumulacijske grelnike vode, ki ne uporabljajo rezervoarjev za akumulacijo vroče vode;
- električne akumulacijske grelnike vode, ki ne izpolnjujejo minimalne (ali maksimalne) zmogljivosti izhoda najmanjšega (ali največjega) profila obremenitve, kot je opredeljen v preglednici 4.
– grelniki vode brez toplotne izolacije
OPOMBA 2: Ta standard ne določa varnostnih zahtev. Za varnostne zahteve glej standard IEC 60335-1 v povezavi s standardom IEC 60335-2-21.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2023
Metode za merjenje električnih lastnosti akumulacijskih grelnikov vode za uporabo
v gospodinjstvu (IEC 60379:2023)
Methods for measuring the performance of electric storage water-heaters for household
purposes (IEC 60379:2023)
Verfahren zum Messen der Gebrauchseigenschaften von elektrischen
Warmwasserspeichern für den Hausgebrauch (IEC 60379:2023)
Méthodes de mesure de l'aptitude à la fonction des chauffe-eau électriques à
accumulation pour usages domestiques (IEC 60379:2023)
Ta slovenski standard je istoveten z: EN IEC 60379:2023
ICS:
91.140.65 Oprema za ogrevanje vode Water heating equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60379
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2023
ICS 91.140.65 Supersedes EN 60379:2004
English Version
Methods for measuring the performance of electric storage water
heaters for household purposes
(IEC 60379:2023)
Méthodes de mesure de l'aptitude à la fonction des chauffe- Verfahren zur Messung der Gebrauchseigenschaften von
eau électriques à accumulation à usages domestiques elektrischen Warmwasserspeichern für den Hausgebrauch
(IEC 60379:2023) (IEC 60379:2023)
This European Standard was approved by CENELEC on 2023-03-14. 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60379:2023 E
European foreword
The text of document 59C/282/FDIS, future edition 4 of IEC 60379, prepared by SC 59C "Electrical
heating appliances for household and similar purposes" of IEC/TC 59 "Performance of household and
similar electrical appliances" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60379:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-12-14
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-03-14
document have to be withdrawn
This document supersedes EN 60379:2004 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60379:2023 was approved by CENELEC as a European
Standard without any modification.
IEC 60379 ®
Edition 4.0 2023-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Methods for measuring the performance of electric storage water heaters for
household purposes
Méthodes de mesure de l'aptitude à la fonction des chauffe-eau électriques à
accumulation à usages domestiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 91.140.65 ISBN 978-2-8322-6439-3
– 2 – IEC 60379:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and units . 9
5 Calculation of the electrical energy efficiency (η ) . 10
elecwh
6 Measured parameters . 10
7 General conditions for measurements . 10
8 Reference conditions . 12
9 Test procedures . 15
9.1 Standard test procedure. 15
9.1.1 General . 15
9.1.2 Installation . 15
9.1.3 Stabilisation . 15
9.1.4 Storage volume . 16
9.1.5 Filling and heat-up . 16
9.1.6 Stabilisation at zero-load and cyclic temperature variation (differential) . 17
9.1.7 Tapping . 17
9.1.8 Reporting of Q . 18
elec
9.1.9 Re-stabilisation at zero-load . 18
9.1.10 Mixed water quantity delivered at 40 °C . 18
9.2 Smart control test procedure . 20
9.2.1 Measurement procedure . 20
9.2.2 Installation . 20
9.2.3 Stabilisation . 20
9.2.4 Filling and heat-up . 20
9.2.5 Stabilisation before reference period . 21
9.2.6 Reference period . 21
9.2.7 Smart period . 22
9.2.8 Reporting of the smart control factor . 23
9.2.9 WHL control cycle . 23
9.3 Measurement of stored water temperatures . 23
9.4 Thermostat setting . 24
9.5 Standing loss per 24 h . 25
9.5.1 General . 25
9.5.2 Single-tank standing loss . 25
9.5.3 Multi-tank standing loss for directly measurable products . 25
9.5.4 Multi-tank standing loss for not directly measurable products . 27
9.6 Hot water output . 29
9.7 Maximum hot water output . 29
10 Data report . 30
Annex A (normative) Calculation of the specific energy efficiency and of the annual
consumption of electric energy . 32
A.1 Symbols and units . 32
A.2 Calculation of the specific energy efficiency . 32
IEC 60379:2023 © IEC 2023 – 3 –
A.3 Calculation of the annual consumption of electric energy . 33
A.4 Data report . 33
Annex B (normative) Test setup . 34
Figure 1 – Test procedure for "energized appliances" . 15
Figure 2 – Test procedure for "off-peak appliances" . 15
Figure 3 – Test procedure for "smart cycle" . 20
Figure 4 – Assembly scheme . 27
Figure 5 – Assembly scheme BENCH . 28
Figure B.1 – Schematic representation of storage water-heaters. 35
Figure B.2 – Position of the thermocouples for vertical and horizontal models . 36
Figure B.3 – Example of hydraulic connection (unvented products) . 37
Figure B.4 – Schemes for directly measurable multi-tank appliances . 38
Figure B.5 – Directly measurable multi tank . 39
Figure B.6 – Not directly measurable multi tank . 39
Table 1 – Electricity . 11
Table 2 – Test conditions, outputs, set values and tolerances. . 11
Table 3 – Load profile of the water heater (reference test tapping patterns) . 13
Table 4 – Tolerance of the rated storage volume . 16
Table 5 – Tapping profiles . 21
Table 6 – Rated capacity and flow rates . 29
Table 7 – Data report . 31
Table A.8 – k values . 33
Table A.9 – Complements to data report . 33
Table B.1 – Thickness of insulation according to size of pipe or connection . 40
– 4 – IEC 60379:2023 © IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METHODS FOR MEASURING THE PERFORMANCE
OF ELECTRIC STORAGE WATER HEATERS
FOR HOUSEHOLD PURPOSES
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 IE
...
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