SIST EN 60335-2-90:2006

Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements for commercial microwave ovens

This International Standard deals with: - the safety of microwave ovens with a cavity door intended for commercial 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. - the safety of combination microwave ovens with a cavity door, the requirements for which are contained in Annex AA. - the safety of microwave ovens without a cavity door and with transportation means that are intended for commercial use only, for the heating of food and beverages, the requirements for which are contained in Annex BB.. Microwave ovens, covered by annex BB, have transportation means for moving the microwave load through the microwave oven. Requirements for tunnel microwave ovens and several types of microwave vending machines are covered. This international standard also takes into account ordinary persons having access to the removing area of the vending machine.

Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-90: Besondere Anforderungen für gewerbliche Mikrowellenkochgeräte

Appareils électrodomestiques et analogues - Sécurité -- Partie 2-90: Règles particulières pour les fours à micro-ondes à usage commercial

Traite de la sécurité des fours à micro-ondes à usage commercial avec une porte de cavité dont la tension assignée n'est pas supérieure à 250 V pour les appareils monophasés raccordés entre phase et neutre et 480 V pour les autres appareils.  S'applique aussi de la sécurité  des fours à micro-ondes sans porte de cavité et avec moyens de transport qui sont destinés à un usage commercial uniquement.
Cette publication doit être lue conjointement avec la CEI 60335-1:2010.

Gospodinjski in podobni električni aparati – Varnost - 2-90. del: Posebne zahteve za komercialne mikrovalovne pečice (IEC 60335-2-90:2006)

General Information

• Status: Published
• Publication Date: 31-Oct-2006
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2006
• Due Date: 01-Nov-2006
• Completion Date: 01-Nov-2006
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Directive: 73/23/EEC - Electrical equipment designed for use within certain voltage limits
• Ref Project: EN 60335-2-90:2006 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens

Relations

• Replaces: SIST EN 60335-2-90:2003/A1:2004 - Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 01-May-2009
• Amended By: SIST EN 60335-2-90:2006/A1:2011 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 01-May-2011
• Replaced By: SIST EN IEC 60335-2-90:2021 - Household and similar appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 01-Dec-2021
• Amended By: SIST EN 60335-2-90:2006/A1:2011 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 07-Jun-2022
• Replaced By: SIST EN IEC 60335-2-90:2021 - Household and similar appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 07-Jun-2022
• Replaces: SIST EN 60335-2-90:2003 - Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60335-2-90:2003/A1:2004 - Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 28-Jan-2023
• Amended By: SIST EN 60335-2-90:2006/A1:2011 - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 28-Jan-2023
• Replaces: SIST EN 60335-2-90:2003 - Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60335-2-90:2006
01-november-2006
1DGRPHãþD
SIST EN 60335-2-90:2003
SIST EN 60335-2-90:2003/A1:2004
*RVSRGLQMVNLLQSRGREQLHOHNWULþQLDSDUDWL±9DUQRVWGHO3RVHEQH]DKWHYH
]DNRPHUFLDOQHPLNURYDORYQHSHþLFH,(&
Household and similar electrical appliances - Safety -- Part 2-90: Particular requirements
for commercial microwave ovens
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-90:
Besondere Anforderungen für gewerbliche Mikrowellenkochgeräte
Appareils électrodomestiques et analogues - Sécurité -- Partie 2-90: Règles particulières
pour les fours à micro-ondes à usage commercial
Ta slovenski standard je istoveten z: EN 60335-2-90:2006
ICS:
97.040.20 âWHGLOQLNLGHORYQLSXOWL Cooking ranges, working
SHþLFHLQSRGREQLDSDUDWL tables, ovens and similar
appliances
SIST EN 60335-2-90:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60335-2-90:2006

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SIST EN 60335-2-90:2006


EUROPEAN STANDARD
EN 60335-2-90

NORME EUROPÉENNE
May 2006
EUROPÄISCHE NORM

ICS 97.040.20 Supersedes EN 60335-2-90:2002 + A1:2003


English version


Household and similar electrical appliances –
Safety
Part 2-90: Particular requirements
for commercial microwave ovens
(IEC 60335-2-90:2006)


Appareils électrodomestiques et Sicherheit elektrischer Geräte für den
analogues – Hausgebrauch und ähnliche Zwecke
Sécurité Teil 2-90: Besondere Anforderungen
Partie 2-90: Règles particulières für gewerbliche Mikrowellenkochgeräte
pour les fours à micro-ondes (IEC 60335-2-90:2006)
à usage commercial
(CEI 60335-2-90:2006)




This European Standard was approved by CENELEC on 2006-03-01. 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, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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


© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60335-2-90:2006 E

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SIST EN 60335-2-90:2006
EN 60335-2-90:2006 - 2 -
Foreword
The text of document 61B/306/FDIS, future edition 3 of IEC 60335-2-90, prepared by SC 61B of the IEC
Technical Committee 61, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60335-2-90 on 2006-03-01.
This European Standard replaces EN 60335-2-90:2002 + A1:2003.
Changes compared to EN 60335-2-90:2002 concern requirements for microwave ovens without a cavity
door and with transportation means that are intended for commercial use only for the heating of food and
beverages.
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) 2006-12-01
- date on which national standards
conflicting with the EN have to be withdrawn (dow) 2009-03-01
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 microwave ovens.
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.
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 60335-2-90:2006
- 3 - EN 60335-2-90:2006
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 60335-2-90:2006 was approved by CENELEC as a European
Standard without any modification.
____________

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SIST EN 60335-2-90:2006

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SIST EN 60335-2-90:2006
NORME CEI
INTERNATIONALE
IEC



60335-2-90
INTERNATIONAL


Troisième édition
STANDARD

Third edition

2006-02


Appareils électrodomestiques et analogues –
Sécurité –
Partie 2-90:
Règles particulières pour les fours à micro-ondes
à usage commercial

Household and similar electrical appliances –
Safety –
Part 2-90:
Particular requirements for commercial
microwave ovens

 IEC 2006 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
CODE PRIX
XA
PRICE CODE
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 3 –
CONTENTS
FOREWORD.7
INTRODUCTION.13

1 Scope.15
2 Normative references.17
3 Definitions .17
4 General requirement .23
5 General conditions for the tests.23
6 Classification .23
7 Marking and instructions .25
8 Protection against access to live parts .27
9 Starting of motor-operated appliances.27
10 Power input and current .27
11 Heating.27
12 Void.29
13 Leakage current and electric strength at operating temperature.29
14 Transient overvoltages.29
15 Moisture resistance.29
16 Leakage current and electric strength .31
17 Overload protection of transformers and associated circuits .31
18 Endurance .33
19 Abnormal operation.33
20 Stability and mechanical hazards .37
21 Mechanical strength.37
22 Construction .41
23 Internal wiring .51
24 Components .51
25 Supply connection and external flexible cords .51
26 Terminals for external conductors .53
27 Provision for earthing.53
28 Screws and connections .53
29 Clearances, creepage distances and solid insulation .53
30 Resistance to heat and fire .55
31 Resistance to rusting .55
32 Radiation, toxicity and similar hazards.55

Annex AA (normative) Combination microwave ovens.57
Annex BB (normative) Requirements for commercial microwave ovens without a cavity
door and with conveyor-type means.61

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 5 –
Annex CC (informative) Overview of the requirements for covers, means of access
and similar .89
Annex DD (informative) Rationales for the microwave barrier and associated leakage
tests .91

Bibliography . 105

Figure 101 – Test rod for interlock concealment .55
Figure BB.1 – Splash apparatus .83
Figure BB.2 – Arrangement for measurement of microwave leakage from access openings .85
Figure BB.3 – Examples of Definitions of clause 3 and clause BB.3 .87

Table 101 – Number of potatoes .35
Table BB.101 – Specifications for microwave barriers.75

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 7 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –

Part 2-90: Particular requirements for
commercial microwave ovens


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 subcommittee 61B: Safety
of microwave ovens, of IEC technical committee 61: Safety of household and similar electrical
appliances.
This third edition cancels and replaces the second edition published in 2002 and its
Amendment 1 (2003). It constitutes a technical revision. Changes in this edition concern
requirements for microwave ovens without a cavity door and with transportation means that are
intended for commercial use only for the heating of food and beverages.

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 9 –
The text of this part of IEC 60335 is based on the following documents:
FDIS Report on voting
61B/306/FDIS 61B/311/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 microwave
ovens.
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 type in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and
the associated noun are also in bold.
The following differences exist in the countries indicated below.
2
– 5.3: Microwave leakage is not to exceed 10 W/m during the initial test (Japan, USA and Canada).
– 6.1: Microwave ovens may be class OI if the rated voltage does not exceed more than 150 V (Japan).
– 7.12: Some warnings have to be marked on the appliance and be visible to the user (Canada).
– Clause 18: The test is carried out on two appliances (USA).
– 19.11.2: The input voltage variation is not applied (USA).
– 19.13: Microwave leakage is only measured at the end of each test (USA).
– 21.102: The applied force is 222 N (USA).
2
– 21.105: Microwave leakage is not to exceed 50 W/m (Japan and USA).
– 22.111: Microwave leakage is only measured at the end of the test (USA).
2
– 22.112: Microwave leakage is not to exceed 50 W/m (Japan and USA).
– 22.116: All access to the cavity has to be prevented (USA).
– 27.2: A terminal for an external equipotential conductor is not required (Japan).

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 11 –
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 60335-2-90:2006
60335-2-90  IEC:2006 – 13 –
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.
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 which 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 60335-2-90:2006
60335-2-90  IEC:2006 – 15 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –

Part 2-90: Particular requirements for
commercial microwave ovens



1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with:
• the safety of microwave ovens with a cavity door intended for commercial 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.
• the safety of combination microwave ovens with a cavity door, the requirements for
which are contained in Annex AA.
• the safety of microwave ovens without a cavity door and with transportation means that
are intended for commercial use only, for the heating of food and beverages, the
requirements for which are contained in Annex BB.
Microwave ovens, covered by annex BB, have transportation means for moving the
microwave load through the microwave oven. Requirements for tunnel microwave ovens and
several types of microwave vending machines are covered.
NOTE 101 In annex BB a microwave oven without a cavity door and with transportation means is described as a
microwave oven. All clauses of this standard apply to these appliances unless otherwise specified in Annex BB.
This international standard also takes into account ordinary persons having access to the
removing area of the vending machine.
NOTE 102 The appliance may be built into a vending machine, in which case IEC 60335-2-75 may also be
applicable.
NOTE 103 Appliances that use non-electrical energy are within the scope of this standard.
In general, this standard does not take into account
– the use of appliances by young children or infirm persons without supervision;
– playing with the appliance by young children.
This international standard does not take into account the use of a microwave oven without a
cavity door and with transportation means by ordinary persons except in the vicinity of
entrance and exit ports.
NOTE 104 The rationales for particular microwave exposure conditions and measures related to microwave energy
being confined by an open structure are in Annex BB.
NOTE 105 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;
– for appliances intended to be used in tropical countries, special requirements may be necessary;

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 17 –
– in many countries, the national health authorities, the national authorities responsible for the protection of
labour and similar authorities specify additional requirements;
– in many countries, national authorities specify additional requirements to BB 22.119.1;
– responsible for the protection of labour and similar authorities
NOTE 106 This standard does not apply to,
– household microwave ovens including combination microwave ovens (IEC 60335-2-25)
– industrial microwave heating equipment (IEC 60519-6)
– appliances for medical purposes (IEC 60601)
– 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).
2 Normative references
This clause of Part 1 is applicable.
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.7 Addition:
NOTE 101 The rated frequency is the input frequency.
3.1.9 Replacement:
normal operation
operation of the appliance under the following conditions
The appliance is operated with 1 000 g ± 50 g of potable water at an initial temperature of
20 °C ± 2 °C in a cylindrical borosilicate glass vessel having a maximum thickness of 3 mm
and an outside diameter of approximately 190 mm. The vessel is placed on the centre of the
shelf. If the rated microwave power output exceeds 2 200 W, two such vessels are used and
placed contiguously in the cavity.
3.101
microwave oven
1
appliance using electromagnetic energy in one or several of the ISM frequency bands between
300 MHz and 30 GHz, for heating food and beverages in a cavity
3.102
rated microwave power output
microwave power output assigned to the appliance by the manufacturer
3.103
cavity
space enclosed by the inner walls and the door in which the load is placed
3.104
shelf
horizontal support in the cavity on which the load is placed
3.105
door interlock
device or system that prevents the operation of the magnetron unless the oven door is closed
___________
1
 ISM frequency bands are the electromagnetic frequencies established by the ITU and reproduced in CISPR 11.

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SIST EN 60335-2-90:2006
60335-2-90  IEC:2006 – 19 –
3.106
monitored door interlock
door interlock system that incorporates a supervision device
3.107
temperature-sensing probe
device that is inserted into the food to measure its temperature and is a part of an oven control
Addition:
NOTE For more details see figure 104.
3.108
instructed person
person who is sufficiently instructed and monitored to know how to avoid any danger caused by
the operation of microwave ovens
3.109
skilled person
person with suitable professional education, knowledge and experience to discern and to avoid
any danger caused by the operation of microwave ovens
3.110
ordinary person
person who is neither a skilled person nor an instructed person
3.111
transportation means
means to transport the microwave load through the microwave oven
NOTE An example of a transportation means is a belt, an arm or an inclined plane.
3.112
load
food and beverages that can be heated up in a microwave oven
3.113
microwave enclosure
structure that is intended to confine microwave energy to a defined region
NOTE 1 Barriers mounted outside the microwave enclosure are not considered a part of t
...