IEC 60335-2-36:2017
(Main)Household and similar electrical appliances - Safety - Part 2-36: Particular requirements for commercial electric cooking ranges, ovens, hobs and hob elements
Household and similar electrical appliances - Safety - Part 2-36: Particular requirements for commercial electric cooking ranges, ovens, hobs and hob elements
IEC 60335-2-36:2017 deals with the safety of electrically operated commercial cooking and baking ranges, ovens, hobs, hob elements and similar appliances not intended for household and similar use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances.
These appliances are used for the commercial processing of food, for example in kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries, butcheries, etc.
The electrical part of appliances making use of other forms of energy is also within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by these types of appliances.
This standard does not apply to:
- appliances designed exclusively for industrial purposes;
- appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas);
- appliances for continuous mass production of food;
- steam cookers, forced and steam convection ovens (IEC 60335-2-42);
- hot cupboards (IEC 60335-2-49) or microwave ovens (IEC 60335-2-90).
This sixth edition cancels and replaces the fifth edition published in 2002 including its Amendment 1 (2004) and its Amendment 2 (2008). This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
- stating some wording in the scope more precisely;
- addition of a measurement method for pans in the definition for normal operation;
- new definitions on the topic surface temperature;
- deletion of the paragraph with the warning for dangerous voltages (already covered by Part 1);
- addition of hot surface symbol IEC 60417-5041;
- addition of instructions and markings on hot surfaces and other topics;
- addition of requirements, measuring methods and thresholds for different materials on hot surfaces;
- modification on leakage current defining the value for appliances with a power consumption less than 1 kW;
- modification on the measurement method for induction heating sources in abnormal operation;
- addition of a requirement for the construction of stationary appliances with rollers or castors;
- modification on some points concerning permanent connection to fixed wiring;
- addition of specific requirements concerning types of screws to be used for electrical connections and connections for earth continuity;
- addition of a figure showing the surfaces to be measured;
- addition of a figure showing the probe for measuring surface temperatures;
- addition of a figure showing the disc for the pan detection on induction heating sources and addition of informative Annex P dealing with leakage currents for appliances used in tropical climates.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the fifth edition (2010) of that standard
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 12 months or later than 36 months from the date of its publication.
This publication is to be read in conjunction with IEC 60335-1:2010.
Appareils électrodomestiques et analogues - Sécurité - Partie 2-36 : Exigences particulières pour les cuisinières, les fours, les tables de cuisson et les foyers de cuisson électriques à usage collectif
L'IEC 60335-2-36:2017 traite de la sécurité des cuisinières, des fours, des tables de cuisson, des foyers de cuisson électriques à usage collectif et des appareils analogues qui ne sont pas destinés à un usage domestique et analogue, dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés alimentés entre phase et neutre et à 480 V pour les autres appareils.
Ces appareils sont utilisés pour la préparation d’aliments à des fins commerciales, par exemple dans les cuisines de restaurants, cantines, hôpitaux ou dans des entreprises artisanales comme les boulangeries, les boucheries, etc.
La partie électrique des appareils utilisant d’autres formes d’énergie relève également du domaine d’application de la présente norme.
Dans la mesure du possible, la présente norme traite des dangers ordinaires présentés par ces types d'appareils.
L’attention est attirée sur le fait que
– pour les appareils destinés à être utilisés dans des véhicules ou à bord de navires ou d'avions, des exigences supplémentaires peuvent être nécessaires;
– dans de nombreux pays, des exigences supplémentaires sont spécifiées par les organismes nationaux de la santé publique, par les organismes nationaux responsables de la protection des travailleurs, par les organismes nationaux responsables de l'alimentation en eau et par des organismes similaires.
La présente norme ne s’applique pas:
– aux appareils prévus exclusivement pour des usages industriels;
– aux appareils destinés à être utilisés dans des locaux présentant des conditions particulières, telles que la présence d'une atmosphère corrosive ou explosive (poussières, vapeur ou gaz);
– aux appareils pour la préparation en masse et continue d'aliments;
– aux cuiseurs à vapeur électriques, aux fours à vapeur et à convection forcée (IEC 60335-2-42);
– aux armoires chauffantes (IEC 60335-2-49);
– aux fours à micro-ondes (IEC 60335-2-90).
Cette sixième édition annule et remplace la cinquième édition parue en 2002, y compris son Amendement 1 (2004) et son Amendement 2 (2008). Cette édition constitue une révision technique.
Les principales modifications de la présente édition par rapport à la cinquième édition de l'IEC 60335-2-36 sont les suivantes (les modifications mineures ne sont pas mentionnées):
– formulations plus précises dans le domaine d’application;
– ajout d’une méthode de mesure pour les casseroles dans la définition des conditions de fonctionnement normal;
– ajout de nouvelles définitions relatives à la température de surface;
– suppression de l’alinéa comportant la mise en garde pour les tensions dangereuses (déjà traitées dans la Partie 1);
– ajout du symbole IEC 60417-5041 relatif à la surface chaude;
– ajout d’instructions et de marquages sur les surfaces chaudes et sur d’autres éléments;
– ajout d’exigences, de méthodes et seuils de mesure pour les différents matériaux sur les surfaces chaudes;
– modification du courant de fuite définissant la valeur associée aux appareils consommant moins de 1 kW;
– modification de la méthode de mesure pour les sources de chauffage à induction en fonctionnement anormal;
– ajout d’une exigence relative à la construction des appareils fixes équipés de roulettes ou de galets;
– modification de certains points concernant la connexion permanente à des canalisations fixes;
– ajout d’exigences spécifiques concernant les types de vis à utiliser pour les connexions électriques et les connexions pour la continuité de terre;
– ajout d’une figure représentant les surfaces à mesurer;
– ajout d’une figure représentant la sonde de mesure des températures de surface;
– ajout d’une figure représentant le disque pour la détection des casseroles sur les sources de chauffage à induction;
– ajout de l’Annexe informative P traitant des courants de fuite pour les appareils utilisés sous des climats tropicaux.
La présente partie 2 doit être utilisée conjointement avec la dernière édition de l’IEC 60335-1 et ses amendements. Elle a
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IEC 60335-2-36 ®
Edition 6.0 2017-04
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
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IEC 60335-2-36 ®
Edition 6.0 2017-04
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Safety –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.040.20 ISBN 978-2-8322-4169-1
– 2 – IEC 60335-2-36:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 12
7 Marking and instructions . 12
8 Protection against access to live parts . 15
9 Starting of motor-operated appliances . 16
10 Power input and current . 16
11 Heating . 17
12 Void . 18
13 Leakage current and electric strength at operating temperature . 18
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 22
18 Endurance . 22
19 Abnormal operation . 22
20 Stability and mechanical hazards . 24
21 Mechanical strength . 25
22 Construction . 26
23 Internal wiring . 27
24 Components . 27
25 Supply connection and external flexible cords . 28
26 Terminals for external conductors . 28
27 Provision for earthing . 28
28 Screws and connections . 28
29 Clearances, creepage distances and solid insulation . 29
30 Resistance to heat and fire . 29
31 Resistance to rusting . 30
32 Radiation, toxicity and similar hazards . 30
Annexes . 32
Annex N (normative) Proof tracking test . 33
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 34
Bibliography . 35
Figure 101 – Identification of surfaces for temperature measurement . 31
Figure 102 – Probe for measuring surface temperatures . 31
Figure 103 – Splash apparatus . 31
Figure 104 – Concavity of disc . 32
Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 18
Table 102 – Assembling torques for screwed connections providing earthing continuity . 29
– 4 – IEC 60335-2-36:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
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-
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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
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
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6) All users should ensure that they have the latest edition of this publication.
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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.
This part of International Standard IEC 60335 has been prepared by IEC technical committee
61: Safety of household and similar electrical appliances.
This sixth edition cancels and replaces the fifth edition published in 2002 including its
Amendment 1 (2004) and its Amendment 2 (2008). It constitutes a technical revision.
The principle changes in this edition as compared with the fifth edition of IEC 60335-2-36 are
as follows (minor changes are not listed):
• stating some wording in the scope more precisely;
• addition of a measurement method for pans in the definition for normal operation;
• new definitions on the topic surface temperature;
• deletion of the paragraph with the warning for dangerous voltages (already covered by
Part 1);
• addition of hot surface symbol IEC 60417-5041;
• addition of instructions and markings on hot surfaces and other topics;
• addition of requirements, measuring methods and thresholds for different materials on hot
surfaces;
• modification on leakage current defining the value for appliances with a power
consumption less than 1 kW;
• modification on the measurement method for induction heating sources in abnormal
operation;
• addition of a requirement for the construction of stationary appliances with rollers or
castors;
• modification on some points concerning permanent connection to fixed wiring;
• addition of specific requirements concerning types of screws to be used for electrical
connections and connections for earth continuity;
• addition of a figure showing the surfaces to be measured;
• addition of a figure showing the probe for measuring surface temperatures;
• addition of a figure showing the disc for the pan detection on induction heating sources;
• addition of informative Annex P dealing with leakage currents for appliances used in
tropical climates.
The text of this Standard is based on the following documents:
FDIS Report on voting
61/5327/FDIS 61/5383/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for commercial electric
cooking ranges, ovens, hobs and hob elements.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states "addition", "modification" or "replacement",
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– 6 – IEC 60335-2-36:2017 © IEC 2017
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition of Part 1 concerns an
adjective, the adjective and the associated noun are also in bold .
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE 4 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 12 months from the date of publication.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 8 – IEC 60335-2-36:2017 © IEC 2017
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electrically operated commercial cooking
and baking ranges, ovens, hobs, hob elements and similar appliances not intended for
household and similar use, their rated voltage being not more than 250 V for single-phase
appliances connected between one phase and neutral and 480 V for other appliances.
NOTE 101 These appliances are used for the commercial processing of food, for example in kitchens of
restaurants, canteens, hospitals and in commercial enterprises such as bakeries, butcheries, etc.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
As far as is practicable, this standard deals with the common hazards presented by these
types of appliances.
NOTE 102 Attention is drawn to the fact that
– For appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– In many countries additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
NOTE 103 This standard does not apply to
– appliances designed exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a
corrosive or explosive atmosphere (dust, vapour or gas);
– appliances for continuous mass production of food;
– steam cookers, forced and steam convection ovens (IEC 60335-2-42);
– hot cupboards (IEC 60335-2-49);
– microwave ovens (IEC 60335-2-90).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
ISO 185, Grey cast irons – Classifications
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:
Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread
ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 1:
Bolts, screws and studs
ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 2:
Nuts
ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3:
Set screws and similar fasteners not under tensile stress
ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:
Tapping screws
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1.4 Addition:
Note 1 to entry: The rated power input is the sum of the power inputs of all the individual elements in the
appliance that can be on at one time; where several such combinations are possible, that giving the highest power
input is used in determining the rated power input.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions:
Solid hob elements are operated with no load and sheathed hob elements are operated with
a load made of dull black, cold or hot rolled steel, 9 mm to 10 mm thick, that covers not less
than 90 % and not more than 100 % of the element surface. The hob elements are operated
with the controls set to give the temperatures as set out below, the temperature being
measured at the geometrical centre or the hottest point of the solid element or load, if the
element is unevenly heated.
Stepped controls are set to the first position that gives a temperature equal to or greater
than 275 °C. Cycling controls are set so that the mean value of the temperature over the cycle
is 275 °C ± 5 °C. If this temperature cannot be reached, the control is set at the maximum.
Non-induction heating sources beneath a glass-ceramic or similar material are operated with
a pan or pans containing initially cold water, the pan(s) being filled to a height of
60 mm ± 10 mm. The pan or pans are of aluminium, of ordinary quality, not brightly polished,
with a base concavity not exceeding 0,1 mm. The pan or pans shall cover the cooking zone
to the greatest extent possible.
The pan or pans are covered with a lid. The controls are set at maximum until the water boils
and then adjusted to maintain boiling. Water is added to maintain the water level during
boiling.
Induction heating sources beneath a glass-ceramic or similar material are operated with the
pan or pans recommended by the manufacturer.
If one pan is used, it shall cover as closely as possible, but not less than, the full area of the
cooking zone. The pan is positioned centrally.
For non-circular cooking zones a combination of the smallest number of pans is chosen to
cover as much as possible the area of the cooking zone.
The pan or pans in each case are filled with initially cold frying oil to a height of
30 mm ± 5 mm. The controls are set to maximum until the temperature of the oil attains a
value of 180 °C and then adjusted to maintain the oil at a temperature of 180 °C ± 15 °C. The
oil temperature is measured 10 mm above the centre of the bottom of the vessel.
A further test is made using initially cold water, the pan(s) being filled to a height of
60 mm ± 10 mm. The pan or pans are covered with a lid. The controls are set at maximum
– 10 – IEC 60335-2-36:2017 © IEC 2017
until the water boils and then adjusted to maintain boiling. Water is added to maintain the
water level during boiling.
The condition providing the most unfavourable results (oil or water) is used.
Ovens are operated with no load and with the controls set so that the mean value of the
temperature over the thermostat cycle at the geometric centre of the usable space in the
interior of the oven is maintained at 240 °C ± 4 °C. Stepped controls are set so that this
temperature is 240 °C ± 15 °C. For ovens that are capable of attaining temperatures in excess
of 290 °C, the controls are set so that the temperature is 50 °C ± 4 °C below the maximum
temperature attainable. For ovens that are unable to attain a temperature of 240 °C, the
controls are set to maximum.
Griddle plates are operated with no load and with the controls set so as to give the
temperatures set out below, the temperature being measured at the hottest point of each
controlled cooking surface. Stepped controls are set to the first position that gives a
temperature equal to or greater than 275 °C. Cycling controls are set so that the mean value
of the temperature over the cycle is 275 °C ± 5 °C. If this temperature cannot be reached, the
control is set to maximum.
Motors incorporated in the appliance are operated in the intended manner under the most
unfavourable conditions that can be expected in normal use, taking into account the
manufacturer's instructions.
3.101
cooking and baking range
single cooking or baking appliance incorporating one or more ovens together with one or more
hob elements or griddle plates or a combination of these
Note 1 to entry: An appliance incorporating a forced convection oven, steam-convection oven or microwave oven
is considered to be an appliance incorporating another appliance (see also 5.102).
3.102
heating unit
any part of the appliance that fulfils an independent cooking or heating function
Note 1 to entry: Examples are hob elements, griddle plates or ovens.
Note 2 to entry: If an oven incorporates more than one heating element or groups of elements that are so
controlled that one element or group cannot be switched on while another element or group is energized, each of
the elements or groups of elements is to be considered as a separate heating unit and tested accordingly.
3.103
hob element
heating unit designed to accommodate a vessel or vessels on its upper surface
Note 1 to entry: A hob element may consist of an induction or non-induction heating source beneath a surface
of glass-ceramic or similar material.
3.104
hob surface
horizontal part of the appliance to which the hob elements are attached
Note 1 to entry: It may be a separate appliance or part of a cooking range.
Note 2 to entry: A hob may also incorporate a griddle plate.
3.105
hob
hob surface and one or more hob elements
3.106
cooking zone
area marked on a hob surface of glass-ceramic or similar material where the vessel is
intended to be placed
3.107
induction heating source
heating source that operates by inducing eddy currents in a vessel positioned on the hob
element
3.108
griddle plate
heating unit having a cooking surface on which the food is intended to be placed directly
3.109
installation wall
special fixed construction containing supply facilities for appliances installed in conjunction
with it
3.110
pan detector
device incorporated in a hob element that prevents its operation unless a vessel is placed on
the cooking zone
Note 1 to entry: A pan detector is not considered to be a thermostat or protective device.
3.111
functional surface
surface that is intentionally heated by an internal heat source and has to be hot to carry out
the function for which the appliance is intended
Note 1 to entry: An example is the heated sheath of a tubular heating element.
3.112
adjacent surface
surface adjacent to a functional surface and which can become hot through conduction
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Addition:
Hob elements that are submitted separately are tested when installed in an appropriate
cooking range.
The test of 18.102 may be made on a separate sample.
5.3 Addition:
The test of 18.102 is made before the test of Clause 11 unless it is made on a separate
sample.
– 12 – IEC 60335-2-36:2017 © IEC 2017
5.10 Addition:
Appliances intended for installation in a bank of other appliances and appliances intended to
be fixed to an installation wall are enclosed to obtain protection against electric shock and
harmful ingress of water equivalent to that obtained when installed in accordance with the
instructions provided with the appliances.
NOTE 101 Appropriate enclosures or additional appliances may be needed for test purposes.
5.101 Appliances are tested as heating appliances, even if they incorporate a motor.
5.102 Appliances, when assembled in combination with or incorporating other appliances,
are tested in accordance with the requirements of this standard. The other appliances are
operated simultaneously in accordance with the requirements of the relevant standards.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances shall be class I with respect to protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Appliances normally used on a table shall be at least IPX3. Other appliances shall be at least
IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances incorporating induction heating sources shall be marked with
– operating frequency or operating frequency range in kilohertz (kHz) of the induction
heating sources;
– the total power input of all the induction heating units that can operate simultaneously, in
watts or kilowatts;
NOTE 101 The power input to be marked or declared is the highest power input any switching arrangement
will allow.
– the total power input of all the non-induction heating units that can operate
simultaneously in watts or kilowatts.
NOTE 102 The power input to be marked is the highest power input any switching arrangement will allow.
Covers, if removed, giving direct access to induction coils shall be marked with the following:
CAUTION: MAGNETIC FIELD or symbol IEC 60417-5140 (2003-04).
If appliances have external accessible surfaces, for which temperature rise limits are
specified in Table 101 and for which the provisions of footnote b to Table 101 apply, then the
appliance shall be marked with symbol IEC 60417-5041 (2002-10), or with the substance of
the following:
CAUTION: Hot surfaces.
7.6 Addition:
[symbol IEC 60417-5140 (2003-04)] non-ionizing electromagnetic radiation
[symbol IEC 60417-5041 (2002-10)] caution, hot surface
7.12 Addition:
If the appliance incorporates a hob surface of glass-ceramic or similar material that provides
the enclosure of live parts, the instructions shall include the substance of the following
warning:
WARNING: If the surface is cracked, immediately disconnect the appliance or appropriate
part of the appliance from the supply.
The instructions for appliances with hob surfaces of glass-ceramic or similar material shall
state that aluminium foil and plastic vessels are not to be placed on the hot surfaces. They
shall also state that these surfaces are not to be used for storage.
The instructions for hobs incorporating halogen lamps shall warn the user to avoid looking
directly at the lamps when on.
The instructions for appliances incorporating induction heating sources shall indicate the
size of the smallest cooking vessel to be used. They shall also include the substance of the
following:
• metallic objects such as kitchen utensils, cutlery etc. shall not be placed on the hob
surface within the cooking zones since they could get hot;
• take care when operating the appliance, as rings, watches and similar objects worn by the
user could get hot when in close proximity to the hob surface;
• only use vessels of the type and size recommended.
The instructions for appliances incorporating induction heating sources shall state that
users with heart pacemakers should consult with the manufacturer, unless specific details are
given.
The instructions for hobs with hob elements incorporating pan detectors shall include the
substance of the following:
After use, switch the hob element off by means of its control. Do not rely on the pan
detector.
If any of symbols IEC 60417-5021 (2002-10), IEC 60417-5036 (2002-10), IEC 60417-5041
(2002-10) or IEC 60417-5140 (2003-04) are marked on the appliance, their meaning shall be
explained.
The instructions shall include the substance of the following:
– 14 – IEC 60335-2-36:2017 © IEC 2017
These appliances are intended to be used for commercial applications, for example in
kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries,
butcheries, etc., but not for continuous mass production of food.
If the manufacturer wants to limit the use of the appliance to less than the above, this has to
be clearly stated in the instructions.
Modification:
The instruction concerning persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge is not applicable.
7.12.1 Addition:
For appliances intended for installation in a bank of other appliances and appliances intended
to be fixed to an installation wall, details of how to ensure appropriate protection against
electric shock and harmful ingress of water shall be supplied. If the controls of more than one
appliance are combined in a separate enclosure, detailed installation instructions shall be
supplied. Instructions for user maintenance, for example cleaning, shall also be given. They
shall include a statement that the appliance is not to be cleaned with a water jet or a steam
cleaner.
For appliances that are permanently connected to fixed wiring and for which leakage currents
may exceed 10 mA, particularly if disconnected or not used for long periods, or during initial
installation, the instruction sheet shall give recommendations regarding the rating of
protective devices, such as residual current devices (RCD), to be installed.
In addition, for appliances incorporating induction heating sources, the instructions shall
state that any repairs shall be carried out only by persons trained or recommended by the
manufacturer.
If a stationary appliance is intended to be moved for cleaning, this shall be stated.
For stationary appliances equipped with rollers or castors or intended to be moved for
cleaning, the instructions shall state the substance of the following.
This appliance is to be connected with flexible connections for equipotential bonding and
connection to services such as electricity supply, water supply, gas supply and steam
supply such that the appliance can be moved in the direction required for cleaning a
distance not less than the dimension of the appliance in the direction of movement plus
500 mm without the flexible connections becoming taut or being subject to strain.
7.12.4 Addition:
For appliances incorporating induction heating sources, a warning that care be taken to
ensure that the splashback and surrounding area are free of metallic surfaces, if this is
necessary due to the design of the appliance. The instructions for built-in appliances having
a separate control panel for several appliances shall state that the control panel is only to be
connected to the specified appliances in order to avoid a possible hazard.
7.12.9 Not applicable.
7.14 Addition:
The height of the triangle in symbol IEC 60417-5041 (2002-10) shall be at least 15 mm.
7.15 Addition:
The marking specified for external accessible surfaces shall be visible when the appliance is
operated as in normal use, including when actuating any switch, adjusting any control or
opening a lid or door. It shall not be placed on a functional surface or adjacent surface.
Modification:
For fixed appliances, the marking of the name or trademark or identification mark of the
manufacturer or responsible vendor and the model or type reference shall be marked on the
appliance and, if not visible when the appliance is installed as in normal use, shall be included
in the instructions or on an additional label that can be fixed near the appliance after
installation.
NOTE 101 An example of such an appliance is a built-in hob.
7.101 If, during the test of Clause 11, the temperature rise of the side and rear walls of the
test corner above the level of the hob surface exceeds 65 K or during the test of Clause 19
the temperature rise of the walls above and below the hob surface exceeds 125 K, the
installation instructions provided by the manufacturer shall include the substance of the
following that shall also be included on a non-permanent label, for example a tie-on type,
attached to the appliance:
Where this appliance is to be positioned in close proximity to a wall, partitions, kitchen
furniture, decorative finishes, etc., it is recommended that they be made of non-
combustible material, or if not, that they shall be clad with a suitable non-combustible
heat-insulating material.
Compliance is checked by inspection.
7.102 The cooking zones of hob surfaces of glass-ceramic or similar material shall be
clearly identified by appropriate marking, unless they are obvious.
Compliance is checked by inspection.
7.103 Equipotential bonding terminals shall be marked with symbol 60417-5021 (2002-10).
These markings shall not be placed on screws, removable washers or other parts that can be
removed when conductors are being connected.
Compliance is checked by inspection.
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1 Addition:
Appliances intended to accommodate detachable hob elements shall be constructed so that
there is adequate protection against accidental contact with live parts during insertion or
removal of these elements.
8.101 Heating elements that are liable to be touched accidentally by a fork or similar pointed
object in normal use shall be so protected that it is not possible to touch their live parts with
such an object.
Compliance is checked by inserting test probe 12 of IEC 61032 at all points where the probe
can enter in the vicinity of live parts. The probe is applied with a force not exceeding 1 N.
– 16 – IEC 60335-2-36:2017 © IEC 2017
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
9.101 Fan motors providing a cooling effect in order to comply with the requirements of
Clause 11 shall start under all voltage conditions that may occur in use.
Compliance is checked by the following tests using a supply source such that its drop in
voltage does not exceed 1 % during the tests. The appliance being returned to the ambient
temperature specified in 5.7 after each test.
The appliance is started under the conditions occurring at the beginning of normal operation
or, for automatic appliances, at the beginning of the normal cycle of operation, a voltage
equal to 0,85 times rated voltage being applied to the input terminals of the appliance.
For appliances provided with motors having other than centrifugal starting switches, this test
is repeated at a voltage equal to 1,06 times rated voltage being applied to the input terminals
of the appliance.
The tests are carried out three times.
In all cases, the motor shall start and it shall function in such a way that safety is not affected
and overload protection devices of the motor shall not operate.
10 Power input and current
This clause of Part 1 is applicable except as follows.
10.1 Modification:
The power input of appliances without induction heating sources, at rated voltage and at
normal operating temperature, shall not deviate from the rated power input by more than the
deviation shown in Table 1.
The power input of appliances having only induction heating sources, at rated voltage and at
normal operating temperature, shall not exceed from the rated power input by more than
10 %.
The measurement is made before the controls are adjusted to the reduced setting.
For appliances incorporating induction and non-induction heating sources the following
applies.
The power input of the induction heating sources and the non-induction heating sources is
measured separately, in each case using a combination of heating units that can be on at the
same time to give the highest power input. For the induction heating sources, the
measurement is made before the controls are adjusted to the reduced setting.
The power inputs so measured shall in the case of the induction heating sources not deviate
from the power input marked by the manufacturer (see 7.1) by more than 10 %, and in the
case of the non-induction heating sources not deviate from the power input marked by the
manufacturer (see 7.1) by more than that given in Table 1 for heating appliances.
The power input of the appliance when the induction and non-induction heating sources are
operated simultaneously shall not deviate from the rated power input by more than 10 %.
---------
...
IEC 60335-2-36 ®
Edition 6.0 2017-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-36: Exigences particulières pour les cuisinières, les fours, les tables de
cuisson et les foyers de cuisson électriques à usage collectif
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IEC 60335-2-36 ®
Edition 6.0 2017-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Safety –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-36: Exigences particulières pour les cuisinières, les fours, les tables de
cuisson et les foyers de cuisson électriques à usage collectif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-6490-4
– 2 – IEC 60335-2-36:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 11
5 General conditions for the tests . 11
6 Classification . 12
7 Marking and instructions . 12
8 Protection against access to live parts . 15
9 Starting of motor-operated appliances . 16
10 Power input and current . 16
11 Heating . 17
12 Void . 18
13 Leakage current and electric strength at operating temperature . 18
14 Transient overvoltages . 19
15 Moisture resistance . 19
16 Leakage current and electric strength . 20
17 Overload protection of transformers and associated circuits . 22
18 Endurance . 22
19 Abnormal operation . 22
20 Stability and mechanical hazards . 24
21 Mechanical strength . 25
22 Construction . 26
23 Internal wiring . 27
24 Components . 27
25 Supply connection and external flexible cords . 28
26 Terminals for external conductors . 28
27 Provision for earthing . 28
28 Screws and connections . 28
29 Clearances, creepage distances and solid insulation . 29
30 Resistance to heat and fire . 29
31 Resistance to rusting . 30
32 Radiation, toxicity and similar hazards . 30
Annexes . 33
Annex N (normative) Proof tracking test . 34
Annex P (informative) Guidance for the application of this standard to appliances
used in tropical climates . 35
Bibliography . 36
Figure 101 – Identification of surfaces for temperature measurement . 30
Figure 102 – Probe for measuring surface temperatures . 31
Figure 103 – Splash apparatus . 31
Figure 104 – Concavity of disc . 32
Table 101 – Maximum temperature rises for specified external accessible surfaces
under normal operating conditions . 18
Table 102 – Assembling torques for screwed connections providing earthing continuity . 29
– 4 – IEC 60335-2-36:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
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.
This part of International Standard IEC 60335 has been prepared by IEC technical
committee 61: Safety of household and similar electrical appliances.
This bilingual version (2019-01) corresponds to the monolingual English version, published
in 2017-04.
This sixth edition cancels and replaces the fifth edition published in 2002 including its
Amendment 1 (2004) and its Amendment 2 (2008). It constitutes a technical revision.
The principle changes in this edition as compared with the fifth edition of IEC 60335-2-36 are
as follows (minor changes are not listed):
• stating some wording in the scope more precisely;
• addition of a measurement method for pans in the definition for normal operation;
• new definitions on the topic surface temperature;
• deletion of the paragraph with the warning for dangerous voltages (already covered by
Part 1);
• addition of hot surface symbol IEC 60417-5041;
• addition of instructions and markings on hot surfaces and other topics;
• addition of requirements, measuring methods and thresholds for different materials on hot
surfaces;
• modification on leakage current defining the value for appliances with a power
consumption less than 1 kW;
• modification on the measurement method for induction heating sources in abnormal
operation;
• addition of a requirement for the construction of stationary appliances with rollers or
castors;
• modification on some points concerning permanent connection to fixed wiring;
• addition of specific requirements concerning types of screws to be used for electrical
connections and connections for earth continuity;
• addition of a figure showing the surfaces to be measured;
• addition of a figure showing the probe for measuring surface temperatures;
• addition of a figure showing the disc for the pan detection on induction heating sources;
• addition of informative Annex P dealing with leakage currents for appliances used in
tropical climates.
The text of this Standard is based on the following documents:
FDIS Report on voting
61/5327/FDIS 61/5383/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
The French version of this standard has not been voted upon.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts of the IEC 60335 series, under the general title: Household and similar
electrical appliances – Safety, can be found on the IEC website.
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fifth edition (2010) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for commercial electric
cooking ranges, ovens, hobs and hob elements.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states "addition", "modification" or "replacement",
the relevant text in Part 1 is to be adapted accordingly.
– 6 – IEC 60335-2-36:2017 © IEC 2017
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition of Part 1 concerns an
adjective, the adjective and the associated noun are also in bold .
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE 4 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 12 months from the date of publication.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
– 8 – IEC 60335-2-36:2017 © IEC 2017
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES – SAFETY –
Part 2-36: Particular requirements for commercial electric cooking ranges,
ovens, hobs and hob elements
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electrically operated commercial cooking
and baking ranges, ovens, hobs, hob elements and similar appliances not intended for
household and similar use, their rated voltage being not more than 250 V for single-phase
appliances connected between one phase and neutral and 480 V for other appliances.
NOTE 101 These appliances are used for the commercial processing of food, for example in kitchens of
restaurants, canteens, hospitals and in commercial enterprises such as bakeries, butcheries, etc.
The electrical part of appliances making use of other forms of energy is also within the scope
of this standard.
As far as is practicable, this standard deals with the common hazards presented by these
types of appliances.
NOTE 102 Attention is drawn to the fact that
– For appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– In many countries additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour, the national water supply authorities and similar authorities.
NOTE 103 This standard does not apply to
– appliances designed exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a
corrosive or explosive atmosphere (dust, vapour or gas);
– appliances for continuous mass production of food;
– steam cookers, forced and steam convection ovens (IEC 60335-2-42);
– hot cupboards (IEC 60335-2-49);
– microwave ovens (IEC 60335-2-90).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
ISO 185, Grey cast irons – Classifications
ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel – Part 1:
Bolts, screws and studs with specified property classes – Coarse thread and fine pitch thread
ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 1:
Bolts, screws and studs
ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 2:
Nuts
ISO 3506-3, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 3:
Set screws and similar fasteners not under tensile stress
ISO 3506-4, Mechanical properties of corrosion-resistant stainless steel fasteners – Part 4:
Tapping screws
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1.4 Addition:
Note 1 to entry: The rated power input is the sum of the power inputs of all the individual elements in the
appliance that can be on at one time; where several such combinations are possible, that giving the highest power
input is used in determining the rated power input.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions:
Solid hob elements are operated with no load and sheathed hob elements are operated with
a load made of dull black, cold or hot rolled steel, 9 mm to 10 mm thick, that covers not less
than 90 % and not more than 100 % of the element surface. The hob elements are operated
with the controls set to give the temperatures as set out below, the temperature being
measured at the geometrical centre or the hottest point of the solid element or load, if the
element is unevenly heated.
Stepped controls are set to the first position that gives a temperature equal to or greater
than 275 °C. Cycling controls are set so that the mean value of the temperature over the cycle
is 275 °C ± 5 °C. If this temperature cannot be reached, the control is set at the maximum.
Non-induction heating sources beneath a glass-ceramic or similar material are operated with
a pan or pans containing initially cold water, the pan(s) being filled to a height of
60 mm ± 10 mm. The pan or pans are of aluminium, of ordinary quality, not brightly polished,
with a base concavity not exceeding 0,1 mm. The pan or pans shall cover the cooking zone
to the greatest extent possible.
The pan or pans are covered with a lid. The controls are set at maximum until the water boils
and then adjusted to maintain boiling. Water is added to maintain the water level during
boiling.
Induction heating sources beneath a glass-ceramic or similar material are operated with the
pan or pans recommended by the manufacturer.
If one pan is used, it shall cover as closely as possible, but not less than, the full area of the
cooking zone. The pan is positioned centrally.
For non-circular cooking zones a combination of the smallest number of pans is chosen to
cover as much as possible the area of the cooking zone.
The pan or pans in each case are filled with initially cold frying oil to a height of
30 mm ± 5 mm. The controls are set to maximum until the temperature of the oil attains a
value of 180 °C and then adjusted to maintain the oil at a temperature of 180 °C ± 15 °C. The
oil temperature is measured 10 mm above the centre of the bottom of the vessel.
A further test is made using initially cold water, the pan(s) being filled to a height of
60 mm ± 10 mm. The pan or pans are covered with a lid. The controls are set at maximum
– 10 – IEC 60335-2-36:2017 © IEC 2017
until the water boils and then adjusted to maintain boiling. Water is added to maintain the
water level during boiling.
The condition providing the most unfavourable results (oil or water) is used.
Ovens are operated with no load and with the controls set so that the mean value of the
temperature over the thermostat cycle at the geometric centre of the usable space in the
interior of the oven is maintained at 240 °C ± 4 °C. Stepped controls are set so that this
temperature is 240 °C ± 15 °C. For ovens that are capable of attaining temperatures in excess
of 290 °C, the controls are set so that the temperature is 50 °C ± 4 °C below the maximum
temperature attainable. For ovens that are unable to attain a temperature of 240 °C, the
controls are set to maximum.
Griddle plates are operated with no load and with the controls set so as to give the
temperatures set out below, the temperature being measured at the hottest point of each
controlled cooking surface. Stepped controls are set to the first position that gives a
temperature equal to or greater than 275 °C. Cycling controls are set so that the mean value
of the temperature over the cycle is 275 °C ± 5 °C. If this temperature cannot be reached, the
control is set to maximum.
Motors incorporated in the appliance are operated in the intended manner under the most
unfavourable conditions that can be expected in normal use, taking into account the
manufacturer's instructions.
3.101
cooking and baking range
single cooking or baking appliance incorporating one or more ovens together with one or more
hob elements or griddle plates or a combination of these
Note 1 to entry: An appliance incorporating a forced convection oven, steam-convection oven or microwave oven
is considered to be an appliance incorporating another appliance (see also 5.102).
3.102
heating unit
any part of the appliance that fulfils an independent cooking or heating function
Note 1 to entry: Examples are hob elements, griddle plates or ovens.
Note 2 to entry: If an oven incorporates more than one heating element or groups of elements that are so
controlled that one element or group cannot be switched on while another element or group is energized, each of
the elements or groups of elements is to be considered as a separate heating unit and tested accordingly.
3.103
hob element
heating unit designed to accommodate a vessel or vessels on its upper surface
Note 1 to entry: A hob element may consist of an induction or non-induction heating source beneath a surface
of glass-ceramic or similar material.
3.104
hob surface
horizontal part of the appliance to which the hob elements are attached
Note 1 to entry: It may be a separate appliance or part of a cooking range.
Note 2 to entry: A hob may also incorporate a griddle plate.
3.105
hob
hob surface and one or more hob elements
3.106
cooking zone
area marked on a hob surface of glass-ceramic or similar material where the vessel is
intended to be placed
3.107
induction heating source
heating source that operates by inducing eddy currents in a vessel positioned on the hob
element
3.108
griddle plate
heating unit having a cooking surface on which the food is intended to be placed directly
3.109
installation wall
special fixed construction containing supply facilities for appliances installed in conjunction
with it
3.110
pan detector
device incorporated in a hob element that prevents its operation unless a vessel is placed on
the cooking zone
Note 1 to entry: A pan detector is not considered to be a thermostat or protective device.
3.111
functional surface
surface that is intentionally heated by an internal heat source and has to be hot to carry out
the function for which the appliance is intended
Note 1 to entry: An example is the heated sheath of a tubular heating element.
3.112
adjacent surface
surface adjacent to a functional surface and which can become hot through conduction
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.2 Addition:
Hob elements that are submitted separately are tested when installed in an appropriate
cooking range.
The test of 18.102 may be made on a separate sample.
5.3 Addition:
The test of 18.102 is made before the test of Clause 11 unless it is made on a separate
sample.
– 12 – IEC 60335-2-36:2017 © IEC 2017
5.10 Addition:
Appliances intended for installation in a bank of other appliances and appliances intended to
be fixed to an installation wall are enclosed to obtain protection against electric shock and
harmful ingress of water equivalent to that obtained when installed in accordance with the
instructions provided with the appliances.
NOTE 101 Appropriate enclosures or additional appliances may be needed for test purposes.
5.101 Appliances are tested as heating appliances, even if they incorporate a motor.
5.102 Appliances, when assembled in combination with or incorporating other appliances,
are tested in accordance with the requirements of this standard. The other appliances are
operated simultaneously in accordance with the requirements of the relevant standards.
6 Classification
This clause of Part 1 is applicable except as follows.
6.1 Replacement:
Appliances shall be class I with respect to protection against electric shock.
Compliance is checked by inspection and by the relevant tests.
6.2 Addition:
Appliances normally used on a table shall be at least IPX3. Other appliances shall be at least
IPX4.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances incorporating induction heating sources shall be marked with
– operating frequency or operating frequency range in kilohertz (kHz) of the induction
heating sources;
– the total power input of all the induction heating units that can operate simultaneously, in
watts or kilowatts;
NOTE 101 The power input to be marked or declared is the highest power input any switching arrangement
will allow.
– the total power input of all the non-induction heating units that can operate
simultaneously in watts or kilowatts.
NOTE 102 The power input to be marked is the highest power input any switching arrangement will allow.
Covers, if removed, giving direct access to induction coils shall be marked with the following:
CAUTION: MAGNETIC FIELD or symbol IEC 60417-5140 (2003-04).
If appliances have external accessible surfaces, for which temperature rise limits are
specified in Table 101 and for which the provisions of footnote b to Table 101 apply, then the
appliance shall be marked with symbol IEC 60417-5041 (2002-10), or with the substance of
the following:
CAUTION: Hot surfaces.
7.6 Addition:
[symbol IEC 60417-5140 (2003-04)] non-ionizing electromagnetic radiation
[symbol IEC 60417-5041 (2002-10)] caution, hot surface
7.12 Addition:
If the appliance incorporates a hob surface of glass-ceramic or similar material that provides
the enclosure of live parts, the instructions shall include the substance of the following
warning:
WARNING: If the surface is cracked, immediately disconnect the appliance or appropriate
part of the appliance from the supply.
The instructions for appliances with hob surfaces of glass-ceramic or similar material shall
state that aluminium foil and plastic vessels are not to be placed on the hot surfaces. They
shall also state that these surfaces are not to be used for storage.
The instructions for hobs incorporating halogen lamps shall warn the user to avoid looking
directly at the lamps when on.
The instructions for appliances incorporating induction heating sources shall indicate the
size of the smallest cooking vessel to be used. They shall also include the substance of the
following:
• metallic objects such as kitchen utensils, cutlery etc. shall not be placed on the hob
surface within the cooking zones since they could get hot;
• take care when operating the appliance, as rings, watches and similar objects worn by the
user could get hot when in close proximity to the hob surface;
• only use vessels of the type and size recommended.
The instructions for appliances incorporating induction heating sources shall state that
users with heart pacemakers should consult with the manufacturer, unless specific details are
given.
The instructions for hobs with hob elements incorporating pan detectors shall include the
substance of the following:
After use, switch the hob element off by means of its control. Do not rely on the pan
detector.
If any of symbols IEC 60417-5021 (2002-10), IEC 60417-5036 (2002-10), IEC 60417-5041
(2002-10) or IEC 60417-5140 (2003-04) are marked on the appliance, their meaning shall be
explained.
The instructions shall include the substance of the following:
– 14 – IEC 60335-2-36:2017 © IEC 2017
These appliances are intended to be used for commercial applications, for example in
kitchens of restaurants, canteens, hospitals and in commercial enterprises such as bakeries,
butcheries, etc., but not for continuous mass production of food.
If the manufacturer wants to limit the use of the appliance to less than the above, this has to
be clearly stated in the instructions.
Modification:
The instruction concerning persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge is not applicable.
7.12.1 Addition:
For appliances intended for installation in a bank of other appliances and appliances intended
to be fixed to an installation wall, details of how to ensure appropriate protection against
electric shock and harmful ingress of water shall be supplied. If the controls of more than one
appliance are combined in a separate enclosure, detailed installation instructions shall be
supplied. Instructions for user maintenance, for example cleaning, shall also be given. They
shall include a statement that the appliance is not to be cleaned with a water jet or a steam
cleaner.
For appliances that are permanently connected to fixed wiring and for which leakage currents
may exceed 10 mA, particularly if disconnected or not used for long periods, or during initial
installation, the instruction sheet shall give recommendations regarding the rating of
protective devices, such as residual current devices (RCD), to be installed.
In addition, for appliances incorporating induction heating sources, the instructions shall
state that any repairs shall be carried out only by persons trained or recommended by the
manufacturer.
If a stationary appliance is intended to be moved for cleaning, this shall be stated.
For stationary appliances equipped with rollers or castors or intended to be moved for
cleaning, the instructions shall state the substance of the following.
This appliance is to be connected with flexible connections for equipotential bonding and
connection to services such as electricity supply, water supply, gas supply and steam
supply such that the appliance can be moved in the direction required for cleaning a
distance not less than the dimension of the appliance in the direction of movement plus
500 mm without the flexible connections becoming taut or being subject to strain.
7.12.4 Addition:
For appliances incorporating induction heating sources, a warning that care be taken to
ensure that the splashback and surrounding area are free of metallic surfaces, if this is
necessary due to the design of the appliance. The instructions for built-in appliances having
a separate control panel for several appliances shall state that the control panel is only to be
connected to the specified appliances in order to avoid a possible hazard.
7.12.9 Not applicable.
7.14 Addition:
The height of the triangle in symbol IEC 60417-5041 (2002-10) shall be at least 15 mm.
7.15 Addition:
The marking specified for external accessible surfaces shall be visible when the appliance is
operated as in normal use, including when actuating any switch, adjusting any control or
opening a lid or door. It shall not be placed on a functional surface or adjacent surface.
Modification:
For fixed appliances, the marking of the name or trademark or identification mark of the
manufacturer or responsible vendor and the model or type reference shall be marked on the
appliance and, if not visible when the appliance is installed as in normal use, shall be included
in the instructions or on an additional label that can be fixed near the appliance after
installation.
NOTE 101 An example of such an appliance is a built-in hob.
7.101 If, during the test of Clause 11, the temperature rise of the side and rear walls of the
test corner above the level of the hob surface exceeds 65 K or during the test of Clause 19
the temperature rise of the walls above and below the hob surface exceeds 125 K, the
installation instructions provided by the manufacturer shall include the substance of the
following that shall also be included on a non-permanent label, for example a tie-on type,
attached to the appliance:
Where this appliance is to be positioned in close proximity to a wall, partitions, kitchen
furniture, decorative finishes, etc., it is recommended that they be made of non-
combustible material, or if not, that they shall be clad with a suitable non-combustible
heat-insulating material.
Compliance is checked by inspection.
7.102 The cooking zones of hob surfaces of glass-ceramic or similar material shall be
clearly identified by appropriate marking, unless they are obvious.
Compliance is checked by inspection.
7.103 Equipotential bonding terminals shall be marked with symbol 60417-5021 (2002-10).
These markings shall not be placed on screws, removable washers or other parts that can be
removed when conductors are being connected.
Compliance is checked by inspection.
8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1 Addition:
Appliances intended to accommodate detachable hob elements shall be constructed so that
there is adequate protection against accidental contact with live parts during insertion or
removal of these elements.
8.101 Heating elements that are liable to be touched accidentally by a fork or similar pointed
object in normal use shall be so protected that it is not possible to touch their live parts with
such an object.
Compliance is checked by inserting test probe 12 of IEC 61032 at all points where the probe
can enter in the vicinity of live parts. The probe is applied with a force not exceeding 1 N.
– 16 – IEC 60335-2-36:2017 © IEC 2017
9 Starting of motor-operated appliances
This clause of Part 1 is applicable except as follows.
9.101 Fan motors providing a cooling effect in order to comply with the requirements of
Clause 11 shall start under all voltage conditions that may occur in use.
Compliance is checked by the following tests using a supply source
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