oSIST prEN IEC 60335-2-99:2026
(Main)Household and similar electrical appliances - Safety - Part 2-99: Particular requirements for commercial electric hoods
- Abstract
This European standard deals with the safety of electrically operated commercial hoods intended for installation above commercial cooking appliances such as ranges, griddles, griddle grills and deep fat fryers, their rated voltage being not more than 250 V for single phase hoods connected between one phase and neutral, and 480 V for other hoods. Only single complete units and hoods supplied as separate parts which when assembled form a complete working hood, incorporating a fan, are within the scope of the standard.
- Status
- Not Published
- Public Enquiry End Date
- 24-Sep-2026
- Technical Committee
- VGA - Safety of household and similar electrical appliances
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 09-Jul-2026
- Due Date
- 26-Nov-2026
- Completion Date
- 28-Sep-2026
prEN IEC 60335-2-99:2026 is a draft European Standard from the European Committee for Electrotechnical Standardization (CENELEC) for the safety of electrically operated commercial hoods. It sets particular requirements for hoods installed above commercial cooking appliances, including complete units and separate parts that assemble into a complete working hood with a fan. It is aimed at manufacturers, designers, installers, test laboratories, and compliance teams working with commercial kitchen extraction equipment.
What does prEN IEC 60335-2-99:2026 specify?
prEN IEC 60335-2-99:2026 specifies safety requirements for electrically operated commercial hoods used above commercial cooking appliances such as ranges, griddles, griddle grills, and deep fat fryers. The rated voltage is limited to not more than 250 V for single-phase hoods connected between one phase and neutral, and 480 V for other hoods.
The standard covers back-draft ventilation systems, down-draft ventilation systems, and fume extraction modules. It is written for equipment used in commercial kitchens and similar non-public areas such as restaurants, canteens, hospitals, bakeries, and butcheries.
The document follows the IEC Part 1 / Part 2 structure. It uses the general safety requirements from Part 1 and then modifies or replaces the relevant clauses for commercial electric hoods, with Annex B and Annex P as the annexes used in this part.
| Annex | What it covers |
|---|---|
| B | Battery-operated appliances, separable batteries, and detachable batteries for battery-operated appliances - marked not applicable here |
| P | Guidance for appliances used in tropical climates, including modified leakage current values |
What are the key requirements of prEN IEC 60335-2-99:2026?
The main requirements focus on shock protection, installation information, motor starting, heating, leakage current, construction, fire behavior, and ozone hazards. In practice, the standard tells you what the hood must be built like, how it must be tested, and what the user and installer must be told.
Electrical safety and instructions
Clause 6.1 requires the appliance to be class I for protection against electric shock. That means the hood is expected to rely on protective earthing, so the design and verification file need to support earth continuity.
Clause 7 requires specific marking and instructions. Replaceable illumination lamps must be marked with their maximum power input, and the instructions must cover air intake when the hood is used with gas or other fuel-burning appliances, regular filter cleaning, fire risk if cleaning is neglected, and the instruction not to flambé under the appliance. The installation instructions must also state minimum distances, ventilation requirements, and gas-safety precautions.
Clause 7.101 requires a terminal for external equipotential bonding, marked with the correct symbol. In practice, installers must have a clear point for bonding the hood to the site equipotential conductor.
Operation, heating, and abnormal use
Clause 9.101 requires fan motors that provide cooling needed for Clause 11 compliance to start under all voltage conditions that can occur in use. The test uses 0.85 times rated voltage, and in some cases 1.06 times rated voltage, so motor selection and control logic must tolerate real supply variation.
Clause 11.2 sets the heating test arrangement for hoods above a hob, including the required installation position and test corner. Clause 11.7 requires operation until steady conditions are reached, and Clause 11.8 removes the external enclosure temperature-rise limit. Clause 19.101 adds an abnormal-operation test with all gas burners switched on and no vessels, so the hood must remain safe under heavy cooking heat.
Leakage current and construction
Clauses 13.2 and 16.2 set leakage-current limits that depend on whether the appliance is cord-and-plug connected or permanently connected, and on its rated power input. Annex P gives lower leakage-current values for tropical climates, so the intended market matters when the electrical test plan is set.
Clauses 22.101 to 22.105 address moisture and grease, thermal cut-outs, visible warning colors, secure wall fixing, and cleanability. The hood must be designed so grease and moisture do not collect where they would affect creepage or clearance, parts behind filters must be cleanable, and wall-mounted units must not rely on simple key-hole slots alone. For motors whose unexpected starting could create a hazard, thermal cut-outs must be non-self-resetting and trip-free.
Clause 25.7 specifies oil-resistant sheathed flexible cable of the 60245 IEC 57 type. Clause 25.3 also sets requirements for connection after installation for heavy appliances, which affects how installers sequence mounting and wiring.
Materials, insulation, and fire behavior
Clause 27.2 requires an equipotential bonding terminal that is connected to all fixed exposed metal parts and can accept the specified conductor size range. Clause 28 requires fasteners to comply with the stated ISO fastener standards, and Table 101 gives the assembling torques for screws that provide earthing continuity.
Clause 29.2 sets pollution degree 3 for the microenvironment and requires CTI not less than 250 unless the insulation is protected from contamination. Clause 30 requires heat and fire testing, including ball-pressure and glow-wire testing. Clause 30.101 adds a specific check that combustible material must not extend a fire originating from the cooking surface. Clause 32.101 applies when the hood includes ionizing-air filtration and limits ozone by reference to the IEC 60335-2-65 test.
What terms does prEN IEC 60335-2-99:2026 define?
- Rated power input - the sum of the power inputs of the elements that can be on at the same time, using the combination that gives the highest total.
- Normal operation - operation after installation according to the instructions, with the hood not connected to a duct; combined appliances are tested with the other appliances operating, and if not interlocked, with the fan switched off.
- Hood - a motor-operated appliance intended to collect and remove contaminated air from catering appliances, either by recirculating it through filters or exhausting it from the room.
- Comparative tracking index (CTI) - the insulation property used in Clause 29.2 to check suitability for pollution degree 3 conditions.
- Glow-wire flammability index (GWFI) - the fire-performance index used in Clause 30.2.1 for the glow-wire test criterion.
Who uses prEN IEC 60335-2-99:2026?
Manufacturers and product designers use prEN IEC 60335-2-99:2026 to design commercial hoods that meet the safety tests and installation assumptions in the standard. Test laboratories use it to set up heating, starting, leakage-current, fire, and abnormal-operation tests.
Installers and service teams use it for mounting, earthing, wiring, and maintenance instructions. Quality managers, buyers, and compliance teams use it when checking whether a hood is suitable for commercial kitchens in restaurants, canteens, hospitals, bakeries, and butcheries.
What changed in prEN IEC 60335-2-99:2026 from the previous edition?
This draft will supersede EN 60335-2-99:2003, EN 60335-2-99:2003/A1:2019, and EN 60335-2-99:2003/A11:2023. The underlying IEC second edition is a technical revision that replaces IEC 60335-2-99:2003 and Amendment 1:2017.
The stated technical changes are alignment with IEC 60335-1:2020, conversion of some notes into normative text, exclusion of battery-operated appliances and appliances used in areas open to the public, a new requirement for appliances incorporating means for ionizing air, and harmonization with related IEC/TC 61 standards.
Which standards are used with prEN IEC 60335-2-99:2026?
| Standard | What it contributes |
|---|---|
| IEC 60335-1 | The general safety base for Part 2-99 |
| IEC 60335-2-65:2002, AMD1:2008, AMD2:2015 | The ozone test used for appliances with ionizing-air means |
| ISO 898-1 | Mechanical properties of carbon steel and alloy steel fasteners |
| ISO 3506-1 to ISO 3506-4 | Mechanical properties of corrosion-resistant stainless-steel fasteners |
| IEC 60695-2-12 | Glow-wire flammability index reference for fire testing |
| IEC 60695-11-10 | Material flammability classification used in Clause 30.101 |
| ISO 9772 | Burning test used for filter material in Clause 30.101 |
| IEC 60335-2-31 | Related part for domestic range hoods and other cooking fume extractors |
What does the prEN IEC 60335-2-99:2026 document contain?
The document contains the detailed safety structure for commercial electric hoods: scope, references, definitions, classification, marking, test conditions, electrical tests, mechanical and thermal tests, construction rules, and fire-performance checks. It also includes the special installation and operating conditions used in testing, such as the above-hob heating setup, the test corner, and the abnormal-operation burner test.
A notable feature is Table 101, which gives assembling torques for screws that maintain earthing continuity. The document also includes Annex B on battery-operated appliances and Annex P on tropical-climate guidance, with modified leakage-current values for that use case.
Relations
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 05-May-2026
- Effective Date
- 07-Apr-2025
- Effective Date
- 07-Apr-2025
- Effective Date
- 01-Apr-2025
- Effective Date
- 01-Apr-2025
- Effective Date
- 01-Apr-2025
Frequently Asked Questions
oSIST prEN IEC 60335-2-99:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Household and similar electrical appliances - Safety - Part 2-99: Particular requirements for commercial electric hoods". This standard covers: This European standard deals with the safety of electrically operated commercial hoods intended for installation above commercial cooking appliances such as ranges, griddles, griddle grills and deep fat fryers, their rated voltage being not more than 250 V for single phase hoods connected between one phase and neutral, and 480 V for other hoods. Only single complete units and hoods supplied as separate parts which when assembled form a complete working hood, incorporating a fan, are within the scope of the standard.
This European standard deals with the safety of electrically operated commercial hoods intended for installation above commercial cooking appliances such as ranges, griddles, griddle grills and deep fat fryers, their rated voltage being not more than 250 V for single phase hoods connected between one phase and neutral, and 480 V for other hoods. Only single complete units and hoods supplied as separate parts which when assembled form a complete working hood, incorporating a fan, are within the scope of the standard.
oSIST prEN IEC 60335-2-99:2026 is classified under the following ICS (International Classification for Standards) categories: 97.040.20 - Cooking ranges, working tables, ovens and similar appliances. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN IEC 60335-2-99:2026 has the following relationships with other standards: It is inter standard links to SIST EN 60335-2-65:2003/A1:2008, SIST EN ISO 3506-3:2025, SIST EN ISO 3506-2:2020, SIST EN ISO 3506-4:2025, SIST EN 60335-2-65:2003/A2:2022, SIST EN ISO 898-1:2013, SIST EN 60335-2-65:2003, SIST EN ISO 3506-1:2020, oSIST prEN IEC 60335-2-99:2026/oprAA:2026, oSIST prEN IEC 60335-2-99:2026/oprA1:2026, SIST EN 60335-2-99:2004/A11:2023, SIST EN 60335-2-99:2004, SIST EN 60335-2-99:2004/A1:2019. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN IEC 60335-2-99:2026 is associated with the following European legislation: EU Directives/Regulations: 2014/53/EU, 2023/1230; Standardization Mandates: M/536, M/605. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
oSIST prEN IEC 60335-2-99:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2026
Gospodinjski in podobni električni aparati - Varnost - 2-99. del: Posebne zahteve
za komercialne električne kuhinjske nape
Household and similar electrical appliances - Safety - Part 2-99: Particular requirements
for commercial electric hoods
Sicherheit elektrischer Geräte für den Hausgebrauch und ähnliche Zwecke - Teil 2-99:
Besondere Anforderungen für elektrische Dunstabzugshauben für den gewerblichen
Gebrauch
Appareils électrodomestiques et analogues - Sécurité - Partie 2-99: Exigences
particulières pour les hottes de cuisine électriques à usage commercial
Ta slovenski standard je istoveten z: prEN IEC 60335-2-99:2026
ICS:
97.040.20 Štedilniki, delovni pulti, Cooking ranges, working
pečice in podobni aparati tables, ovens and similar
appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD DRAFT
prEN IEC 60335-2-99
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2026
ICS 97.040.20 Will supersede EN 60335-2-99:2003; EN 60335-2-
99:2003/A1:2019; EN 60335-2-99:2003/A11:2023
English Version
Household and similar electrical appliances - Safety - Part 2-99:
Particular requirements for commercial electric hoods
(IEC 60335-2-99:2021)
Appareils électrodomestiques et analogues - Sécurité - Sicherheit elektrischer Geräte für den Hausgebrauch und
Partie 2-99: Exigences particulières pour les hottes de ähnliche Zwecke - Teil 2-99: Besondere Anforderungen für
cuisine électriques à usage commercial elektrische Dunstabzugshauben für den gewerblichen
(IEC 60335-2-99:2021) Gebrauch
(IEC 60335-2-99:2021)
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2026-09-25.
The text of this draft consists of the text of IEC 60335-2-99:2021.
If this draft becomes a European Standard, 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.
This draft European Standard 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
© 2026 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Project: 81641 Ref. No. prEN IEC 60335-2-99:2026 E
1 European foreword
2 This document (prEN IEC 60335-2-99:2026) consists of the text of IEC 60335-2-99:2021 prepared by
3 IEC/TC 61 "Safety of household and similar electrical appliances".
4 This document is currently submitted to the Enquiry.
5 The following dates are proposed:
• latest date by which the existence of this (doa) dav + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dav + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dav + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)
6 This document will supersede EN IEC 60335-2-99:2024 and all of its amendments and corrigenda (if any).
7 This document is read in conjunction with prEN IEC 60335-2-99:2026/prA1:2026 and prEN IEC 60335-2-
8 99:2026/prAA:2026.
9 This document has been prepared under a standardization request addressed to CENELEC by the European
10 Commission. The Standing Committee of the EFTA State subsequently approves these requests for its
11 Member States.
12 For relationship with EU legislation, see informative Annexes ZZB and ZZC, which are an integral part of
13 prEN IEC 60335-2-99:2026/prAA:2026.
IEC 60335-2-99 ®
Edition 2.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-99: Particular requirements for commercial electric hoods
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-99: Exigences particulières pour les hottes de cuisine électriques
à usage commercial
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.040.20 ISBN 978-2-8322-4500-2
– 2 – IEC 60335-2-99:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
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 . 10
9 Starting of motor-operated appliances . 11
10 Power input and current . 11
11 Heating . 11
12 Charging of metal-ion batteries . 12
13 Leakage current and electric strength at operating temperature . 12
14 Transient overvoltages . 12
15 Moisture resistance . 12
16 Leakage current and electric strength . 13
17 Overload protection of transformers and associated circuits . 13
18 Endurance . 13
19 Abnormal operation . 13
20 Stability and mechanical hazards . 14
21 Mechanical strength . 14
22 Construction . 14
23 Internal wiring . 15
24 Components . 15
25 Supply connection and external flexible cords . 15
26 Terminals for external conductors . 16
27 Provision for earthing . 16
28 Screws and connections . 16
29 Clearances, creeping distances and solid insulation . 17
30 Resistance to heat and fire . 17
31 Resistance to rusting . 18
32 Radiation, toxicity and similar hazards . 18
Annexes . 19
Annex B (normative) Battery-operated appliances, separable batteries and
detachable batteries for battery-operated appliances . 20
Annex P (informative) Guidance for the application of this standard to appliances used
in tropical climates . 21
Bibliography . 22
Table 101 – Assembling torques for screwed connections providing earthing continuity . 17
IEC 60335-2-99:2021 © IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-99: Particular requirements for commercial electric hoods
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60335-2-99 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This second edition cancels and replaces the first edition published in 2003 and
Amendment 1:2017. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text (Clause 1, 11.7, 22.102, 22.104, 27.2,
30.101);
c) exclusion of battery-operated appliances and appliances used in areas open to the public
(Clause 1);
d) addition of requirement for appliances incorporating means for ionizing air (32.101);
e) conciliation of the text of IEC 60335-2-99 with other standards under IEC/TC61/MT32.
– 4 – IEC 60335-2-99:2021 © IEC 2021
The text of this International Standard is based on the following documents:
Draft Report on voting
61/6371/FDIS 61/6421/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This Part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments unless that edition precludes it; in that case, the latest edition that does not
preclude it is used. It was established on the basis of the sixth edition (2020) 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: Particular requirements for commercial electric hoods.
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 concerns an adjective, the adjective and the
associated noun are also in bold.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 60335-2-99:2021 © IEC 2021 – 5 –
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
not earlier than 12 months or later than 36 months from the date of publication.
The following differences exist in the countries indicated below.
– 6.1: Class 01 hoods are allowed (Japan).
– 13.2: Leakage current limits are different (Japan).
– 16.2: Leakage current limits are different (Japan).
– 6 – IEC 60335-2-99:2021 © IEC 2021
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.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website
https://www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
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.
When a Part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the Part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal publications, basic safety publications and group safety publications covering a hazard are not
applicable since they have been taken into consideration when developing the general and particular requirements
for the IEC 60335 series of standards.
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.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods for measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.
IEC 60335-2-99:2021 © IEC 2021 – 7 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-99: Particular requirements for commercial electric hoods
1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electrically operated commercial hoods intended
for installation above commercial cooking appliances such as ranges, griddles, griddle grills
and deep fat fryers, their rated voltage being not more than 250 V for single phase hoods
connected between one phase and neutral, and 480 V for other hoods. Only single complete
units and hoods supplied as separate parts which when assembled form a complete working
hood, incorporating a fan, are within the scope of the standard.
The hood may be used above one or more appliance or types of appliances.
The following extraction systems are within the scope of this standard:
– back-draft ventilation systems;
– down-draft ventilation systems;
– fume extraction modules.
These appliances are not intended for household and similar purposes. They are used in areas
not open to the public, for example in kitchens of restaurants, canteens, hospitals and in
commercial enterprises such as bakeries and butcheries.
As far as is practicable, this standard deals with the common hazards presented by these types
of appliances.
Attention is drawn to the fact that:
– for appliances intended to be used in vehicles or on board ships or aircraft, additional
requirements can be necessary;
– in many countries additional requirements including ventilation requirements are specified
by the national health authorities, the national authorities responsible for the protection of
labour and similar authorities.
This standard does not apply to:
– domestic range hoods (IEC 60335-2-31);
– purpose-built hoods, although this standard can be used as a guide (a purpose-built hood
is either constructed on-site or specially constructed in the factory and is not mass
prod
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