SIST EN IEC 60335-2-90:2021/oprAA:2023

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

This European 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 load through the microwave oven. Requirements for tunnel microwave ovens and several types of microwave vending machines are covered.
This European Standard also deals with microwave ovens intended to be used on board ships, for which Annex EE is applicable.

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: Exigences particulières pour les fours à micro-ondes à usage commercial

Gospodinjski in podobni električni aparati - Varnost - 2-90. del: Posebne zahteve za mikrovalovne pečice za komercialno uporabo - Dopolnilo AA

General Information

• Status: Not Published
• Public Enquiry End Date: 22-Jun-2023
• ICS: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances
• Technical Committee: VGA - Safety of household and similar electrical appliances
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 05-Apr-2023
• Due Date: 23-Aug-2023
• Completion Date: 19-Jul-2023
• Directive: 2006/42/EC - Directive 2006/42/EC of the European Parliament and of the Council of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
• 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
• Mandate: M/396 - Mandate to CEN and Cenelec for standardisation in the field of machinery
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: EN IEC 60335-2-90:2021/prAA - Household and similar electrical appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens

Relations

• Amends: SIST EN IEC 60335-2-90:2021 - Household and similar appliances - Safety - Part 2-90: Particular requirements for commercial microwave ovens
• Effective Date: 28-Jun-2022

Overview

SIST EN IEC 60335-2-90:2021/oprAA:2023 is a European Standard developed by the European Committee for Electrotechnical Standardization (CLC). It specifies the safety requirements for commercial microwave ovens used in various professional and public environments. This standard specifically addresses microwave ovens with cavity doors and transportation means designed exclusively for commercial use. It covers safety aspects related to rated voltages of up to 250 V for single-phase appliances and up to 480 V for other configurations. The document includes detailed provisions for combination microwave ovens (Annex AA), microwave ovens without cavity doors equipped with transportation systems (Annex BB), and those intended for use onboard ships (Annex EE).

Key Topics

• Scope and Application:
  Focus on commercial microwave ovens intended for professional kitchens, cafeterias, bakeries, hospitals, and similar environments. The standard excludes use cases involving young children without supervision and acknowledges differing vulnerabilities among users.

• Safety Modifications and Amendments:
  The document includes amendments supplementing the base EN IEC 60335-2-90:2021 standard, emphasizing specific safety measures for commercial appliances, such as protection against live parts, marking, instructions, and mechanical hazards.

• Protection Against Live Parts:
  Provisions specify when and how test probes (e.g., test probe 18) apply, focusing on installations in public-accessible areas to prevent electrical hazards.

• Marking and User Instructions:
  Clear mandatory warnings are included for appliances not intended for public areas, alongside instructions ensuring safety for supervised children users aged 8 and above.

• Mechanical Hazards and Construction Requirements:
  The standard outlines stability and mechanical safety measures, including special hygiene and cleanability demands for surfaces exposed to or near food. Appliances must prevent entrapment hazards and allow emergency door opening from the inside if accessible to children.

• Additional Requirements for Power-Driven Moving Parts (Annex ZE):
  This annex defines extra safety and hygiene standards for microwave ovens with moving components, used mostly by trained personnel. It covers areas such as food-contact surfaces, splash zones, and non-food areas, ensuring overall appliance cleanliness and safety.

• Noise and Vibration:
  Commercial microwave ovens covered by this standard do not pose significant noise or vibration hazards; hence, no specific requirements are established for these aspects.

Applications

The SIST EN IEC 60335-2-90:2021/oprAA:2023 standard is crucial for:

• Commercial Kitchens and Food Services:
  Ensuring safety in environments like restaurants, canteens, bakeries, butcheries, and hospitals where microwave ovens are heavily used for food preparation.

• Public-Accessible Areas:
  Governing microwave ovens installed in public spaces such as cafeterias and coffee shops, with tailored safety measures for child users and the general public.

• Transport and Industrial Use:
  Standardizing requirements for microwave ovens with transportation means designed for continuous food heating and movement, including tunnel microwave ovens and vending machines.

• Marine Applications:
  Supporting safety compliance of microwave ovens installed onboard ships through specific annex provisions.

This standard helps manufacturers, safety engineers, and regulatory bodies ensure that commercial microwave ovens meet mandatory electrical and mechanical safety requirements while addressing hygiene and user safety.

Related Standards

• EN IEC 60335-1:
  General safety requirements for household and similar electrical appliances, forming the baseline for Part 2 series standards.

• EN IEC 60335-2-36:
  Particular safety requirements for commercial electric cooking ranges, ovens, and hobs.

• EN IEC 60335-2-75:
  Specific requirements for commercial dispensers and vending machines.

• EN ISO 14159:
  Safety of machinery hygiene requirements, applicable for cleanability and hygiene controls in commercial microwave ovens.

• IEC 60068-2-52:
  Environmental testing for salt mist cyclic exposure, important for durability and safety under corrosive conditions.

Employing SIST EN IEC 60335-2-90:2021/oprAA:2023 in conjunction with these related standards ensures comprehensive safety and hygiene compliance for commercial microwave ovens, supporting manufacturers’ conformity to European regulations including the Low Voltage Directive (2014/35/EU).

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Keywords: EN IEC 60335-2-90, commercial microwave oven safety, household and similar electrical appliances, microwave oven standards, commercial kitchen appliance safety, electrical safety standards, food hygiene appliance standards, Low Voltage Directive compliance, public area microwave safety, power-driven parts safety.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2023
Gospodinjski in podobni električni aparati - Varnost - 2-90. del: Posebne zahteve
za mikrovalovne pečice za komercialno uporabo - Dopolnilo AA
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: Exigences
particulières pour les fours à micro-ondes à usage commercial
Ta slovenski standard je istoveten z: EN IEC 60335-2-90:2021/prAA
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
SIST EN IEC 60335-2- en
90:2021/oprAA:2023
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD DRAFT
EN IEC 60335-2-90:2021
NORME EUROPÉENNE
EUROPÄISCHE NORM
prAA
March 2023
ICS 97.040.20 -
English Version
Household and similar electrical appliances - Safety - Part 2-90:
Particular requirements for commercial microwave ovens
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-90: Exigences particulières pour les fours à micro- ähnliche Zwecke - Teil 2-90: Besondere Anforderungen für
ondes à usage commercial gewerbliche Mikrowellenkochgeräte
This draft amendment prAA, if approved, will modify the European Standard EN IEC 60335-2-90:2021; it is submitted to CENELEC
members for enquiry.
Deadline for CENELEC: 2023-06-23.

It has been drawn up by CLC/TC 61.

If this draft becomes an amendment, CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment the status of a national standard without any alteration.

This draft amendment was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to
the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 76280 Ref. No. EN IEC 60335-2-90:2021/prAA E

Contents Page
1 European foreword . 2
2 1 Modification to the Introduction . 3
3 2 Modification to the Scope . 3
4 3 Modification to Clause 3, “Terms and definitions” . 3
5 4 Modification to Clause 7, “Marking and instructions” . 4
6 5 Modification to Clause 8, “Protection against access to live parts” . 4
7 6 Modification to Clause 20, “Stability and mechanical hazards” . 4
8 7 Modification to Clause 22, “Construction” . 4
9 8 Modification to the annexes . 5
10 9 Modification to Bibliography . 11

11 European foreword
12 This document (EN IEC 60335-2-90:2021/prAA:2023) has been prepared by CLC/TC 61 “Safety of household
13 and similar electrical appliances”.
14 This document is currently submitted to the Enquiry.
15 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
16 The numbering system for European clauses, subclasses, notes, tables, figures and annexes that are
17 additional to those in the IEC standard are prefixed with the letter “Z”.
18 This document has been prepared under a Standardization Request given to CENELEC by the European
19 Commission and the European Free Trade Association, and supports essential requirements of EU
20 Directive(s) / Regulation(s).
21 For the relationship with EU Directive(s) / Regulation(s), see informative Annexes ZZA and ZZB, which are an
22 integral part of this document.
23 Secretary Note: All IM notes and relative boxes will be removed before publication. The boxes contain
24 the relational for the changes.
26 Rational Issue manager:
27 The link to legislation will be reintroduced because we have an IM for this standard. The standard is linked to
28 MD because in the market there are products with moving parts covered by machinery directive
30 Secretary Note for HAS consultants: The consolidated version of the IEC standards + EN Common
31 modifications can be requested to the secretary: [e-mail]
32 1 Modification to the Introduction
33 Addition:
34 This European amendment A11 supplements or modifies the corresponding clauses of the standards below:
35 — EN 60335-1:2012+A11:2014+A13:2017+A1:2019+A14:2019+A2:2019+A15:2021+A16:2022 (Part 1)
36 — EN IEC 60335-2-90:2021+A1:2021 (Part 2)
37 2 Modification to the Scope
38 Replace the sixth paragraph, starting from “In general, this standard does not take into account …“ up to “–
39 playing with the appliance by young children.” with the following:
40 “This document deals with the reasonably foreseeable hazards presented by appliances and machines that
41 are encountered by all persons.
42 However, in general, it does not take into account:
43 — children playing with the commercial microwave ovens;
44 — the use of the commercial microwave ovens by young and very young children;
45 — the use of the commercial microwave ovens by older children without supervision, for appliances
46 declared by the manufacturer as designed to be used in areas open to the public;
47 — the use of the commercial microwave ovens by children; for other appliances not used in areas open
48 to the public;
49 It is recognized that very vulnerable people can have needs beyond the level addressed in this document.”
50 Addition:
51 “Additional requirements for commercial microwave ovens with power driven moving parts are given in
52 Annex ZE.
53 Products covered by this document do create neither a noise hazard, nor a vibration hazard; therefore, no
54 specific provisions concerning noise and vibration are given.
55 For the purpose of this document, the term „appliance” as used in Part 1 is to be read as “commercial
56 microwave ovens”.”
57 3 Modification to Clause 3, “Terms and definitions”
58 Add the following new term entry:
59 “
60 3.Z101
61 areas open to the public
62 areas in which the general public including children can enter
63 Note 1 to entry: Examples are dining areas in restaurants, coffee shops, canteens.
Note from IM: This new definition is necessary. The probe 18 introduced in part 1 is only applicable for
commercial microwave ovens intended to be used in area open to the public. The corresponding
requirement in Clause 7, 8, 20 are added.
64 4 Modification to Clause 7, “Marking and instructions”
65 7.12 Modification:
66 Replace the third paragraph in the Part 1 starting with “The instructions shall include the substance of the
67 following …” up to “Cleaning and user maintenance shall not be made by children without supervision.” with
68 the following:
69 “The instructions for commercial microwave ovens not intended to be used in areas open to the public, the
70 instructions shall state the substance of the following:
71 WARNING: This appliance shall not be installed in areas where general public including children has access.
72 The instructions for commercial microwave ovens intended to be used in areas open to the public, the
73 instructions shall state the substance of the following:
74 This appliance can be used by children aged from 8 years and above if they have been given supervision or
75 instruction concerning use of the appliance in a safe way and if they understand the hazards involved.
76 Cleaning and user maintenance shall not be made by children unless they are aged from 8 years and above
77 and supervised.
78 The instructions for appliances that are not in compliance with 22.ZE.104, but intended to be used in areas
79 open to the public shall state that the appliance shall be installed or placed equal to or higher than 850 mm
80 above the floor.”
81 5 Modification to Clause 8, “Protection against access to live parts”
82 Addition:
83 Add the following after “… application”: “except as follows”
84 “8.1.1 Addition:
85 Test probe 18 of EN 61032 is not applied to appliances for commercial use unless they are intended to be
86 installed in an area open to the public.
87 8.1.3 Addition:
88 Test probe 18 of EN 61032 is not applied to appliances for commercial use unless they are intended to be
89 installed in an area open to the public.”
90 6 Modification to Clause 20, “Stability and mechanical hazards”
91 20.2 Addition:
92 Add after the second dashed item in the compliance criteria in the Part 1, starting from “ -test probe 18 of
93 EN 61032,…” the following:
94 “Test probe 18 of EN 61032 is not applied to appliances for commercial use unless they are intended to be
95 installed in an area open to the public.”
96 7 Modification to Clause 22, “Construction”
97 22.55 Modification
98 Add the following text after the third paragraph in the Part 1, starting from “The sound of the motor … :
99 “The requirements are not applicable for commercial appliances unless they are used in areas open to the
100 public.”
101 8 Modification to the annexes
102 Annex ZC
103 (normative)
105 Normative references to international publications with their
106 corresponding European publications
...