EN 50723:2023
(Main)Measurement method for assessing the compatibility of induction hob and cookware
Measurement method for assessing the compatibility of induction hob and cookware
This document describes a method which determines the electrical parameters for compatibility of cookware and induction hobs for household use. Cookware is an integral part of the cooking system; electrical parameters can affect the cooking process regarding the required power setting, speed of heating up, sufficient power for different cooking processes etc. For determining the compatibility of a cookware to an induction cooking zone and cooking area, a measurement device and a measurement procedure is specified in this document. It allows measuring the resistivity and/or impedance of the cookware under test (CUT) in a repeatable and reproducible way. The measured electric properties indicate the compatibility characteristics of a cookware on an induction cooking zones and cooking area. For determination the compatibility of an induction cooking zone or cooking area with a cookware, this document describes the measurement how to determine the power generated by the cooking zone under test (ZUT) in combination with the selected cookware. NOTE 1 For definitions of induction hob, induction cooking zone and cooking area EN 60350-2 is relevant. Further performance characteristics of hobs which are of interest to the user, like energy consumption, heating up time or heat distribution are not addressed. This document does not deal with safety requirements. NOTE 2 Further performance characteristics for hobs are covered in EN 60350-2. NOTE 3 Further performance characteristics for cookware are covered in EN 12983-1 and EN 12983-2. NOTE 4 Safety requirements are covered in IEC 60335-2-6 and IEC 60335-2-9. Appliances covered by this document can be built-in or portable induction hobs. The hob can also be a part of a cooking range.
Messmethode zur Bewertung der Kompatibilität von Induktionskochfeldern und Kochgeschirr
Méthode de mesure pour évaluer la compatibilité des tables de cuisson et des ustensiles de cuisine
Le présent document décrit une méthode qui permet de déterminer les paramètres électriques pour assurer la compatibilité des ustensiles de cuisine et des tables de cuisson destinés à un usage domestique. Les ustensiles de cuisine font partie intégrante du système de cuisson; les paramètres électriques peuvent avoir une incidence sur le processus de cuisson, notamment sur le réglage de puissance exigé, la vitesse de chauffage des aliments, la puissance suffisante pour les différents processus de cuisson, etc. Le présent document spécifie un dispositif et une procédure de mesure afin de déterminer la compatibilité d'un ustensile de cuisine avec une zone de cuisson par induction et une surface de cuisson. Cette approche permet de mesurer la résistivité et/ou l'impédance de l'ustensile de cuisine en essai (CUT, Cookware Under Test) de manière répétable et reproductible. Les propriétés électriques ainsi mesurées reflètent les caractéristiques de compatibilité d'un ustensile de cuisine utilisé sur une zone de cuisson par induction et une surface de cuisson. Pour évaluer la compatibilité d'une zone de cuisson par induction ou d'une surface de cuisson avec un ustensile de cuisine particulier, le présent document spécifie comment effectuer les mesurages afin de déterminer la puissance émise par la zone de cuisson en essai (ZUT, Zone Under Test), utilisée avec l'ustensile choisi. NOTE 1 Pour les définitions des termes "table de cuisson", "zone de cuisson par induction" et "surface de cuisson", consulter l'EN 60350-2. Le présent document ne traite pas des autres caractéristiques d'aptitude à la fonction qui intéressent l'utilisateur, comme la consommation d'énergie, le temps de montée en température ou la répartition de la chaleur. Le présent document ne traite pas des exigences de sécurité. NOTE 2 Les autres caractéristiques d'aptitude à la fonction des tables de cuisson sont traitées dans l'EN 60350-2. NOTE 3 Les autres caractéristiques d'aptitude à la fonction des ustensiles de cuisine sont traitées dans l'EN 12983-1 et l'EN 12983-2. NOTE 4 Les exigences de sécurité sont traitées dans l'IEC 60335-2-6 et l'IEC 60335-2-9. Les appareils couverts par le présent document peuvent être des tables de cuisson encastrées ou mobiles. La table de cuisson peut également être incorporée à une cuisinière.
Merilna metoda za oceno kompatibilnosti indukcijskih kuhališč in kuhinjske posode
Ta dokument opisuje metodo, ki določa električne parametre za kompatibilnosti kuhinjske posode in indukcijskih kuhališč za uporabo v gospodinjstvu. Kuhinjska posoda je sestavni del kuhalnega sistema; električni parametri lahko vplivajo na kuhanje glede zahtevane nastavitve moči, hitrosti segrevanja, zadostne moči za različne postopke kuhanja itd.
Za določanje kompatibilnosti kuhinjske posode z indukcijsko kuhalno ploščo in kuhališčem sta v tem dokumentu določena merilna naprava in postopek merjenja. To omogoča merjenje upornosti in/ali impedance preskušane kuhalne posode (CUT) na ponovljiv način. Izmerjene električne lastnosti označujejo kompatibilnost kuhinjske posode na indukcijskih kuhalnih ploščah in kuhališču.
Za ugotavljanje kompatibilnosti indukcijske kuhalne plošče ali kuhališča s kuhinjsko posodo ta dokument opisuje merjenje, kako določiti moč, ki jo proizvede preskušano kuhališče v kombinaciji z izbrano kuhinjsko posodo.
OPOMBA 1: Za definicije indukcijskega kuhališča, indukcijske kuhalne plošče in kuhališča je ustrezen standard EN 60350-2.
Dodatne funkcionalne lastnosti kuhalnih plošč, ki zanimajo uporabnika, kot so poraba energije, čas segrevanja ali porazdelitev toplote, niso obravnavane. Ta dokument ne obravnava varnostnih zahtev.
OPOMBA 2: Dodatne funkcionalne lastnosti kuhalnih plošč so zajete v standardu EN 60350-2.
OPOMBA 3: Dodatne funkcionalne lastnosti kuhinjske posode so zajete v standardih EN 12983-1 in EN 12983-2.
OPOMBA 4: Ta dokument ne obravnava varnostnih zahtev (IEC 60335-2-6 in IEC 60335-2-9).
Naprave, ki jih zajema ta dokument, so lahko vgradna ali prenosna indukcijska kuhališča. Kuhalna plošča je lahko tudi del štedilnika.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2023
Merilna metoda za oceno kompatibilnosti indukcijskih kuhališč in kuhinjske
posode
Measurement method for assessing the compatibility of induction hob and cookware
Messmethode zur Bewertung der Kompatibilität von Induktionskochfeldern und
Kochgeschirr
Méthode de mesure pour évaluer la compatibilité des tables de cuisson et des ustensiles
de cuisine
Ta slovenski standard je istoveten z: EN 50723:2023
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50723
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2023
ICS 97.040.20
English Version
Measurement method for assessing the compatibility of induction
hob and cookware
Méthode de mesure pour évaluer la compatibilité des tables Messmethode zur Bewertung der Kompatibilität von
de cuisson et des ustensiles de cuisine Induktionskochfeldern und Kochgeschirr
This European Standard was approved by CENELEC on 2023-07-24. 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 50723:2023 E
Contents Page
European foreword . 3
Introduction . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General conditions for the measurement . 6
4.1 Test room. 6
4.2 Electricity supply . 7
4.3 Instrumentation and measurements . 7
5 Dimensions. 8
5.1 Dimensions of a cooking zone . 8
5.2 Dimensions of cookware . 8
6 Specification of the measurement device for cookware . 8
6.1 Converter design . 8
6.2 Converter operation . 9
6.3 Induction coils . 9
6.4 Reference cookware .10
6.5 Glass ceramic and printing.10
7 Method for determining the compatibility of a cookware .11
7.1 Measuring of electrical properties .11
7.2 General procedure .13
7.3 Preparation of CUT .14
7.4 Measurements .14
7.4.1 Overview about the test cases .14
7.4.2 Test cases with reference power density – Test A and B .14
7.4.3 Test C - Case high power operation .21
7.4.4 Test D — Capability to control minimum non-pulsed power .24
8 Method for determining the compatibility of a hob .25
8.1 Purpose .25
8.2 Specification of the reference cookware with aluminium ring .25
8.3 Test procedure .27
8.3.1 Assigning the reference cookware with aluminium ring to a cooking zone .27
8.3.2 Measurement on a cooking zone starting in cold conditions .28
8.3.3 Measurement on a cooking zone starting in hot conditions .29
8.3.4 Assessment .30
Annex A (normative) Coil design .31
Annex B (normative) Converter design .35
Annex C (normative) Design of measurement device .37
Annex D (informative) Examples – test machine .39
Annex E (informative) Control loop of the measurement device .40
Bibliography .42
European foreword
This document EN 50723:2023 has been prepared by CLC/TC 59X “Performance of household and similar
electrical cooking appliances”.
The following dates are fixed:
• latest date by which this document has (dop) 2024-07-24
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2026-07-24
standards conflicting with this 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 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.
Introduction
To ensure that induction hobs designed by household industry and cookware designed by cookware
manufacturers are compatible a common platform for future innovations on both sides is needed. This document
provides measurements to assess the compatibility / interoperability within the system cooking.
Manufacturers of cookware and hobs can use the measurements to identify various properties of induction hobs
and cookware.
Standards application business, e.g. testing laboratories, can use this document for product test clearly to
identify the compatibility of cookware and induction hobs.
Finally, the consumer benefit is on the one hand a better-harmonized product range (cookware/hob) and on the
other hand, a clear product information regarding compatibility based on a standardized method.
1 Scope
This document describes a method which determines the electrical parameters for compatibility of cookware
and induction hobs for household use. Cookware is an integral part of the cooking system; electrical parameters
can affect the cooking process regarding the required power setting, speed of heating up, sufficient power for
different cooking processes etc.
For determining the compatibility of a cookware to an induction cooking zone and cooking area, a measurement
device and a measurement procedure is specified in this document. It allows measuring the resistivity and/or
impedance of the cookware under test (CUT) in a repeatable and reproducible way. The measured electric
properties indicate the compatibility characteristics of a cookware on an induction cooking zones and cooking
area.
For determination the compatibility of an induction cooking zone or cooking area with a cookware, this document
describes the measurement how to determine the power generated by the cooking zone under test (ZUT) in
combination with the selected cookware.
NOTE 1 For definitions of induction hob, induction cooking zone and cooking area EN 60350-2 is relevant.
Further performance characteristics of hobs which are of interest to the user, like energy consumption, heating
up time or heat distribution are not addressed. This document does not deal with safety requirements.
NOTE 2 Further performance characteristics for hobs are covered in EN 60350-2.
NOTE 3 Further performance characteristics for cookware are covered in EN 12983-1 and EN 12983-2.
NOTE 4 Safety requirements are covered in IEC 60335-2-6 and IEC 60335-2-9.
Appliances covered by this document can be built-in or portable induction hobs. The hob can also be a part of
a cooking range.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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.
EN ISO 80000-1:2022, Quantities and units Part 1: General (ISO 80000-1:2022)
EN 60350-2:2018, Household electric cooking appliances Part 2: Hobs Methods for measuring
performance
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
compatibility
capability of an induction hob and a cookware to perform together adequately assessed by the measured
electrical parameters derived in the measurements
Note 1 to entry: The relevant electric parameters are defined in 3.2 to 3.7. This document describes the measurement of
these electrical parameters but does not provide limits.
3.2
resistivity
value obtained by measuring the up taken input power, divided by the square of rms current of the coil
3.3
active power
P
act
power supplied to the measuring device by the mains (average power during mains cycle)
3.4
target input power
P
req
requested power determined by the inner diameter of the cookware
3.5
reference frequency
working frequency at resonant power
3.6
peak current
I
peak
maximum current in each mains cycle
3.7
rms current
I
rms
root-mean-square of the current flowing in coil during a mains cycle
3.8
cookware under test
CUT
cookware sample undergoing examination
3.9
cooking zone under test
ZUT
cooking zone undergoing examination
3.10
boost position setting
marked control setting at maximum power, which is automatically limited in duration
Note 1 to entry: Marked setting on the appliance, which is described in the instructions for use.
3.11
maximum power
maximum possible power setting while only one cookware is used
Note 1 to entry: Boost position setting is not considered.
4 General conditions for the measurement
4.1 Test room
The tests are carried out in a substantially draught-free room in which the laboratory ambient temperature is
maintained at (23 ± 2) °C.
This ambient temperature is measured at a point that is at the s
...
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