Household and similar electrical appliances - Safety -- Part 2-37: Particular requirements for commercial electric deep fat fryers

Deals with the safety of electrically operated commercial deep fat fryers including pressurized types used in restaurants, canteens, hospitals and commercial enterprises such as bakeries, butcheries, etc. (not intended for household use). The rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral and 480 V for other appliances.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke -- Teil 2-37: Besondere Anforderungen für elektrische Friteusen für den gewerblichen Gebrauch

Appareils électrodomestiques et analogues - Sécurité -- Partie 2-37: Règles particulières pour les friteuses électriques à usage collectif

En anglais seulement.

Gospodinjski in podobni električni aparati - Varnost - 2-37. del: Posebne zahteve za komercialne električne cvrtnike (IEC 60335-2-37:2002) (vsebuje popravek AC:2007)

Standard obravnava varnost električno upravljanih komercialnih cvrtnikov, vključno s tipi pod tlakom, ki se uporabljajo v restavracijah, menzah, bolnišnicah in komercialnih podjetjih, kot so pekarne, mesnice itd. (ne za gospodinjsko uporabo). Nazivna napetost mora biti manjša od 250 V za enofazne aparate, priključene med fazo in nevtralni vodnik, in 480 V za ostale aparate.

General Information

Status
Published
Publication Date
30-Apr-2003
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-May-2003
Due Date
01-May-2003
Completion Date
01-May-2003

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SLOVENSKI STANDARD
SIST EN 60335-2-37:2003
01-maj-2003
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SIST EN 60335-2-37:2001
*RVSRGLQMVNLLQSRGREQLHOHNWULþQLDSDUDWL9DUQRVWGHO3RVHEQH]DKWHYH
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Household and similar electrical appliances - Safety -- Part 2-37: Particular requirements
for commercial electric deep fat fryers
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke -- Teil 2-37:
Besondere Anforderungen für elektrische Friteusen für den gewerblichen Gebrauch
Appareils électrodomestiques et analogues - Sécurité -- Partie 2-37: Règles particulières
pour les friteuses électriques à usage collectif
Ta slovenski standard je istoveten z: EN 60335-2-37:2002
ICS:
97.040.20 âWHGLOQLNLGHORYQLSXOWL Cooking ranges, working
SHþLFHLQSRGREQLDSDUDWL tables, ovens and similar
appliances
SIST EN 60335-2-37:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60335-2-37:2003

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SIST EN 60335-2-37:2003
EUROPEAN STANDARD EN 60335-2-37
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2002

ICS 97.040.50 Supersedes EN 60335-2-37:2000
Incorporates Corrigendum August 2007


English version


Household and similar electrical appliances -
Safety
Part 2-37: Particular requirements for
commercial electric deep fat fryers
(IEC 60335-2-37:2002)


Appareils électrodomestiques et Sicherheit elektrischer Geräte für den
analogues - Sécurité Hausgebrauch und ähnliche Zwecke
Partie 2-37: Règles particulières Teil 2-37: Besondere Anforderungen
pour les friteuses électriques für elektrische Friteusen
à usage collectif für den gewerblichen Gebrauch
(CEI 60335-2-37:2002) (IEC 60335-2-37:2002)




This European Standard was approved by CENELEC on 2002-12-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60335-2-37:2002 E

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SIST EN 60335-2-37:2003
EN 60335-2-37:2002 - 2 -
Foreword
The text of document 61E/399/FDIS, future fifth edition of IEC 60335-2-37, prepared by SC 61E of the IEC
Technical Committee 61, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60335-2-37 on 2002-12-01.
This European Standard replaces EN 60335-2-37:2000.
The following dates are applicable:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-09-01
- date on which national standards
conflicting with the EN have to be withdrawn (dow) 2005-12-01
This part 2 has to be used in conjunction with EN 60335-1, Household and similar electrical appliances –
Safety – Part 1: General requirements. It was established on the basis of the 2002 edition of that standard.
Amendments and revisions of Part 1 have also to be taken into account and the dates when such changes
become applicable will be stated in the relevant amendment or revision of Part 1.
This part 2 supplements or modifies the corresponding clauses of EN 60335-1, so as to convert it into the
European Standard: Safety requirements for commercial electric deep fat fryers.
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 of
Part 1 is to be adapted accordingly.
NOTE 1 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.;
- subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z.
NOTE 2 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 concerns an adjective, the adjective and the associated noun
are also in bold.
There are no special national conditions causing a deviation from this European Standard, other than
those listed in Annex ZA to EN 60335-1.
There are no national deviations from this European Standard, other than those listed in Annex ZB to
EN 60335-1.
The contents of the corrigendum of August 2007 have been included in this copy.
p NOTE  In this document, p is used in the margin to indicate instructions for preparing the printed version.
_____________

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SIST EN 60335-2-37:2003
- 3 - EN 60335-2-37:2002
Introduction
p Add:
An investigation by CENELEC TC 61 has shown that all risks from products within the scope of this
standard are fully covered by the Low Voltage Directive, 73/23/EEC. For products having mechanical
moving parts, a risk assessment in accordance with the Machinery Directive, 98/37/EC, has shown that
the risks are mainly of electrical origin and consequently this directive is not applicable. However, the
relevant essential safety requirements of the Machinery Directive are covered by this standard together
with the principal objectives of the Low Voltage Directive.
____________
Endorsement notice
The text of the International Standard IEC 60335-2-37:2002 was approved by CENELEC as a European
Standard without any modification.
____________

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SIST EN 60335-2-37:2003

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SIST EN 60335-2-37:2003
IEC 60335-2-37
Edition 5.0 2002-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE


Household and similar electrical appliances – Safety –
Part 2-37: Particular requirements for commercial electric deep fat fryers

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-37: Règles particulières pour les friteuses électriques à usage collectif

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
T
CODE PRIX
ICS 97.040.50 ISBN 2-8318-8041-6
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 3 –
CONTENTS
FOREWORD.5
INTRODUCTION.9

1 Scope.11
2 Normative references.11
3 Definitions.11
4 General requirement.13
5 General conditions for the tests .13
6 Classification.15
7 Marking and instructions.15
8 Protection against access to live parts.19
9 Starting of motor-operated appliances .19
10 Power input and current .21
11 Heating.21
12 Void .23
13 Leakage current and electric strength at operating temperature.23
14 Transient overvoltages .23
15 Moisture resistance.23
16 Leakage current and electric strength.27
17 Overload protection of transformers and associated circuits .27
18 Endurance.27
19 Abnormal operation.29
20 Stability and mechanical hazards .31
21 Mechanical strength .31
22 Construction.31
23 Internal wiring.37
24 Components.39
25 Supply connection and external flexible cords .39
26 Terminals for external conductors.41
27 Provision for earthing .41
28 Screws and connections .41
29 Clearances, creepage distances and solid insulation .41
30 Resistance to heat and fire.41
31 Resistance to rusting.43
32 Radiation, toxicity and similar hazards.43

Annexes .47
Annex N (normative) Proof tracking test.23

Bibliography.47

Figure 101 – Splash apparatus .45

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –

Part 2-37: Particular requirements
for commercial electric deep fat fryers


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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
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 subcommittee 61E:
Safety of electrical commercial catering equipment, of IEC technical committee 61: Safety of
household and similar electrical appliances.
This fifth edition cancels and replaces the fourth edition published in 2000. It constitutes a
technical revision.
This bilingual version, published in 2005-06, corresponds to the English version.
The text of this part of IEC 60335 standard is based on the following documents:
FDIS Report on voting
61E/399/FDIS 61E/411/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.

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 7 –
The French version of this standard has not been voted upon.
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
deep fat fryers.
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 following differences exist in the countries indicated below.
– 6.1: Class 01 appliances are allowed (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).

The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 9 –
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.

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 11 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –

Part 2-37: Particular requirements
for commercial electric deep fat fryers



1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electrically operated commercial deep fat
fryers including pressurized types 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;
– in many countries, additional requirements are specified for pressure appliances.
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.
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 there are several such combinations possible, that giving the highest power input
is used in determining the rated power input

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 13 –
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions
The appliance is filled with oil to the minimum indicated level.
The thermal control is set at the maximum setting. Lids, if provided, are left in the open
position or removed unless the manufacturer's instructions indicate that the appliance is
designed for operation with the lid closed.
Motors incorporated in the appliance are operated in the intended manner under the most
severe conditions that can be expected in normal use taking into account the manufacturer's
instructions.
3.101
deep fat fryer
an appliance provided with one or more containers in which the food to be cooked is
immersed in the frying medium. The container(s) may be fixed, removable, lifting, tilting, etc.
The pressure within the container can exceed atmospheric pressure
3.102
indicated level
a mark on the appliance to indicate either the minimum or the maximum liquid level for correct
operation
3.103
installation wall
a special fixed construction containing supply facilities for appliances installed in conjunction
with it
3.104
rated pressure
the maximum working pressure assigned by the manufacturer to the pressurized part of the
appliance
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.
5.5 Addition:
The tests are carried out with the container in the position of normal use for frying.
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 appliance.
NOTE 101 Appropriate enclosures or additional appliances may be needed for test purposes.

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 15 –
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.
5.103 Appliances are initially filled with unused vegetable oil. The series of relevant tests
are carried out with this oil, unused oil being added as necessary to maintain a constant level.
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.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
In addition, appliances shall be marked with
– the water pressure or range of pressures, in kilopascals (kPa), for appliances intended to
be connected to a water supply, unless this is indicated in the instruction sheet;
– the rated pressure, in kilopascals (kPa), on pressurized parts of the appliance.
7.6 Addition:
[symbol 5021 of IEC 60417-1] equipotentiality

7.10 Addition:
Devices controlling the tilting process of appliances with tilting parts shall be clearly marked
to show the direction of movement.
7.12 Addition:
The instructions shall include a warning that danger of fire exists if the oil level is below the
minimum indicated level.
The instructions shall include the maximum batch load in kilograms.

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SIST EN 60335-2-37:2003
60335-2-37 © IEC:2002 – 17 –
The instructions shall include a warning regarding the danger of using old oil, emphasizing
that this will have a reduced flash-point and be more prone to surge boiling.
The instructions shall also include the substance of the following warning:
WARNING: Do not open drain cocks or other emptying devices until the pressure has been
reduced to approximately atmospheric pressure.
Attention shall also be drawn to the effect on surge boiling of over-wet food and too large a
charge.
If symbol 5021 of IEC 60417-1 is marked on the appliance its meaning shall be explained.
7.12.1 Replacement:
The appliance shall be accompanied by instructions detailing any special precautions
necessary for installation. 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.
Appliances that are provided with an appliance inlet, and are intended to be immersed in
water for cleaning shall be accompanied by an instruction stating that the connector shall be
removed before the appliance is cleaned and that the appliance inlet shall be dried before the
appliance is used again.
The instructions of appliances other than stationary appliances and appliances with
detachable electrical parts, that are not intended to be partially or completely immersed in
water for cleaning, shall state that the appliance or part must not be immersed.
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 instructions shall give recommendations regarding the rating of protective
devices, such as earth leakage relays, to be installed.
Compliance is checked by inspection.
7.12.4 Addition:
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.

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SIST EN 60335-2-37:2003
60335-2-37 ©
...

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