INTERNATIONAL
STANDARD
IEC
60335-2-36
Fifth edition
2002-10
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:
Règles particulières pour les cuisinières, les fours,
les tables de cuisson et les foyers de cuisson
électriques à usage collectif
Reference number
IEC 60335-2-36:2002(E)
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INTERNATIONAL
STANDARD
IEC
60335-2-36
Fifth edition
2002-10
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:
Règles particulières pour les cuisinières, les fours,
les tables de cuisson et les foyers de cuisson
électriques à usage collectif
IEC 2002 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
N
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PRICE CODECommission Electrotechnique Internationale
International Electrotechnical Commission
Международная Электротехническая Комиссия
– 2 – 60335-2-36 IEC:2002(E)
CONTENTS
FOREWORD .......................................................................................................................... 3
INTRODUCTION .................................................................................................................... 5
1 Scope .............................................................................................................................. 6
2 Normative references....................................................................................................... 6
3 Definitions ....................................................................................................................... 6
4 General requirement ........................................................................................................ 9
5 General conditions for the tests ....................................................................................... 9
6 Classification ................................................................................................................... 9
7 Marking and instructions .................................................................................................. 9
8 Protection against access to live parts ............................................................................12
9 Starting of motor-operated appliances ............................................................................12
10 Power input and current ..................................................................................................13
11 Heating ...........................................................................................................................14
12 Void ..............................................................................................................................15
13 Leakage current and electric strength at operating temperature ......................................15
14 Transient overvoltages....................................................................................................15
15 Moisture resistance.........................................................................................................16
16 Leakage current and electric strength .............................................................................17
17 Overload protection of transformers and associated circuits............................................18
18 Endurance ......................................................................................................................18
19 Abnormal operation.........................................................................................................19
20 Stability and mechanical hazards ....................................................................................20
21 Mechanical strength........................................................................................................21
22 Construction ...................................................................................................................22
23 Internal wiring .................................................................................................................23
24 Components ...................................................................................................................24
25 Supply connection and external flexible cords.................................................................24
26 Terminals for external conductors ...................................................................................25
27 Provision for earthing......................................................................................................25
28 Screws and connections .................................................................................................25
29 Clearances, creepage distances and solid insulation ......................................................25
30 Resistance to heat and fire .............................................................................................25
31 Resistance to rusting ......................................................................................................26
32 Radiation, toxicity and similar hazards ............................................................................26
Annexes................................................................................................................................28
Annex N (normative) Proof tracking test ...............................................................................28
Bibliography ..........................................................................................................................28
Figure 101 – Splash apparatus..............................................................................................27
60335-2-36 IEC:2002(E) – 3 –
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 IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. 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. The 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 the 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 National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The 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 subcommittee 61E:
Safety of electrical commercial catering equipment, of IEC technical committee 61: Safety of
household and similar electrical appliances.
This fifth edition of IEC 60335-2-36 cancels and replaces the fourth edition published in
2000. It constitutes a technical revision.
The text of this part of 60335 is based on the following documents:
FDIS Report on voting
61E/398/FDIS 61E/410/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This 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 fourth edition (2001) 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.
– 4 – 60335-2-36 IEC:2002(E)
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;
– 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 publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
The following differences exist in the countries indicated below.
– 6.1: Class 01 appliances are allowed if their rated voltage does not exceed 150 V (Japan).
– 6.2: For appliances intended to be installed in a kitchen, an appropriate degree of protection against harmful
ingress of water is required according to their height of installation (France).
– 13.2: Leakage current limits are different (Japan).
– 16.2: Leakage current limits are different (Japan).
– Clause 21: For appliances intended to be installed in a kitchen, different values of impact energy are
applicable according to the height of the impact point (France).
A bilingual version of this publication may be issued at a later date.
60335-2-36 IEC:2002(E) – 5 –
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.
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.
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.
– 6 – 60335-2-36 IEC:2002(E)
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 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 example in restaurants, canteens, hospitals and 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);
– continuous process appliances for the 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.
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.4 Addition:
NOTE 101 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.
60335-2-36 IEC:2002(E) – 7 –
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.
A further test is made using initially cold water, the pan(s) being filled to a