IEC 62784:2017

Vacuum cleaners and dust extractors providing equipment protection level Dc for the collection of combustible dusts - Particular requirements

IEC 62784:2017 covers electrical mobile motor-operated vacuum cleaners Equipment Protection Level (EPL) Dc.
This includes dust extractors, for wet suction or dry suction, intended for commercial indoor use with or without attachments, to collect combustible dust in an explosive dust atmosphere.
The requirements for the construction and testing covered by this document are applied in addition to the requirements for commercial and industrial vacuum cleaners in IEC 60335-2-69.
This document supplements and modifies the requirements of IEC 60079-0. Whenever a requirement of this standard is in conflict with a requirement of IEC 60079-0 the requirement of this standard will take precedence.
The following power systems are covered:
- mains powered motors up to a rated voltage of 250 V for single-phase appliances and 480 V for other appliances.
This document does not cover specific hazards associated with extreme ambient temperatures (less than –20 °C or higher than 40 °C) unless otherwise marked by the manufacturer as given in IEC 60079-0. The temperatures shall not exceed the temperature range of –20 °C to +60 °C.
This document does not cover motorized cleaning heads for which additional requirements are under consideration.
This document does not apply to:
- back-pack vacuum cleaners;
- vacuum cleaners with a traction drive;
- vacuum cleaners and water-suction cleaning appliances for household use (IEC 60335-2-2);
- floor treatment machines for commercial use (IEC 60335-2-67, IEC 60335-2-72);
- spray extraction machines for commercial use (IEC 60335-2-68);
- hand-held mains-operated electrical garden blowers, vacuums and blower vacuums (IEC 60335-2-100);
- hand-held and transportable motor-operated electric tools (IEC 62841 series);
- appliances for medical purposes (IEC 60601-1);
- machines designed for use in corrosive environments;
- machines designed for picking up flammable liquids;
- machines designed for use in explosive environments due to the presence of explosive substances or pyrotechnical products, or unstable chemical substances.

Aspirateurs et extracteurs de poussières procurant un niveau de protection du matériel Dc, pour la collecte des poussières combustibles - Exigences particulières

IEC 62784:2017 couvre les aspirateurs à moteur électrique transportables, procurant un niveau de protection des matériels Dc.
Il couvre ainsi les extracteurs de poussières, pour l’aspiration de liquides ou de poussières, destinés à un usage commercial à l’intérieur, avec ou sans accessoires, pour la collecte des poussières combustibles dans une atmosphère explosive contenant des poussières.
Les exigences relatives à la construction et aux essais du présent document sont appliquées en complément des exigences relatives aux aspirateurs à usage industriel et commercial donnés par l'IEC 60335-2-69.
Le présent document complète et modifie les exigences de l’IEC 60079-0. Lorsqu’une exigence de la présente norme est en contradiction avec une exigence de l’IEC 60079-0, c’est l’exigence de la présente norme qui prévaut.
Les systèmes d’alimentation suivants sont couverts: moteurs alimentés par le secteur jusqu’à une tension assignée de 250 V pour les appareils monophasés et 480 V pour les autres appareils.
Le présent document ne couvre pas les dangers spécifiques associés aux températures ambiantes extrêmes (inférieures à –20 °C ou supérieures à 40 °C), sauf indication contraire fournie par le marquage apposé par le fabricant, conformément à l’IEC 60079-0. La température ne doit pas dépasser la plage de températures comprise entre –20 °C et +60 °C.
Le présent document ne couvre pas les têtes de nettoyage à moteur pour lesquelles des exigences complémentaires sont à l’étude.
Le présent document ne s’applique pas:
- aux aspirateurs dorsaux;
- aspirateurs autotractés;
- aspirateurs et appareils de nettoyage à aspiration d’eau, à usage domestique (IEC 60335-2-2);
- machines de traitement des sols, à usage commercial (IEC 60335-2-67, IEC 60335-2-72);
- machines de nettoyage par pulvérisation et aspiration, à usage commercial (IEC 60335-2-68);
- souffleurs, aspirateurs et aspiro-souffleurs portatifs pour le jardin, alimentés par le secteur (IEC 60335-2-100);
- outils électroportatifs à moteur et outils portables (série IEC 62841);
- appareils destinés à un usage médical (IEC 60601-1);
- machines conçues pour être utilisées dans des environnements corrosifs;
- machines conçues pour la collecte des liquides inflammables;
- machines conçues pour être utilisées dans des environnements explosifs en raison de la présence de substances explosives, ou de produits pyrotechniques ou de substances chimiques instables.
Mots clés: aspirateurs, extracteurs de poussières, poussières combustibles

General Information

• Status: Published
• Publication Date: 21-May-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 97.080 - Cleaning appliances
• Technical Committee: SC 61J - Safety of electrical motor-operated cleaning appliances for commercial use
• Drafting Committee: JWG 1 - TC 61/SC 61J/JWG 1
• Current Stage: PPUB - Publication issued
• Start Date: 26-May-2017
• Completion Date: 22-May-2017

Relations

• Amended By: IEC 62784:2017/AMD1:2019 - Amendment 1 - Vacuum cleaners and dust extractors providing equipment protection level Dc for the collection of combustible dusts - Particular requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62784 ®
Edition 1.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Vacuum cleaners and dust extractors providing equipment protection level Dc
for the collection of combustible dusts – Particular requirements

Aspirateurs et extracteurs de poussières procurant un niveau de protection du
matériel Dc, pour la collecte des poussières combustibles – Exigences
particulières
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
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The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

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IEC 62784 ®
Edition 1.0 2017-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Vacuum cleaners and dust extractors providing equipment protection level Dc

for the collection of combustible dusts – Particular requirements

Aspirateurs et extracteurs de poussières procurant un niveau de protection du

matériel Dc, pour la collecte des poussières combustibles – Exigences

particulières
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.080 ISBN 978-2-8322-4346-6

– 2 – IEC 62784:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Constructional requirements . 8
4.1 General . 8
4.2 General protection requirements . 8
4.3 Classification according filter construction . 8
4.4 Supply connection and external flexible cords . 8
4.5 Connection facilities and termination compartments . 8
5 Type verification and type tests . 9
6 Routine tests . 9
7 Marking and instructions . 9
Bibliography . 10

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
VACUUM CLEANERS AND DUST EXTRACTORS PROVIDING
EQUIPMENT PROTECTION LEVEL Dc FOR THE COLLECTION
OF COMBUSTIBLE DUSTS – PARTICULAR REQUIREMENTS

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.
International standard IEC 62784 has been prepared by subcommittee 61J: Electrical motor-
operated cleaning appliances for commercial use, of IEC technical committee 61: Safety of
household and similar electrical appliances.
This standard cancels and replaces Annex CC of IEC 60335-2-69, on which this standard is
based.
The text of this standard is based on the following documents:
FDIS Report on voting
61J/660/FDIS 61J/667/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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62784:2017 © IEC 2017
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website 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.
INTRODUCTION
This document 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 document 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.
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.
IEC 62784 contains the result of the work of IEC SC61J JWG1. The joint working group was
established in April 2009 to prepare, or ensure the coordination of (within SC61J)
international standards and specifications for vacuum cleaners and dust extractors in
collaboration with TC31, intended for the collection of dusts which present an explosion risk.
This document for "vacuum cleaners and dust extractors prov
...

IEC 62784 ®
Edition 1.1 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Vacuum cleaners and dust extractors providing equipment protection level Dc
for the collection of combustible dusts – Particular requirements

Aspirateurs et extracteurs de poussières procurant un niveau de protection du
matériel Dc, pour la collecte des poussières combustibles – Exigences
particulières
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

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Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 62784 ®
Edition 1.1 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Vacuum cleaners and dust extractors providing equipment protection level Dc

for the collection of combustible dusts – Particular requirements

Aspirateurs et extracteurs de poussières procurant un niveau de protection du

matériel Dc, pour la collecte des poussières combustibles – Exigences

particulières
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.080 ISBN 978-2-8322-6448-5

IEC 62784 ®
Edition 1.1 2019-01
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Vacuum cleaners and dust extractors providing equipment protection level Dc
for the collection of combustible dusts – Particular requirements

Aspirateurs et extracteurs de poussières procurant un niveau de protection du
matériel Dc, pour la collecte des poussières combustibles – Exigences
particulières
– 2 – IEC 62784:2017+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Constructional requirements . 8
4.1 General . 8
4.2 General protection requirements . 8
4.3 Classification according filter construction . 8
4.4 Supply connection and external flexible cords . 9
4.5 Connection facilities and termination compartments . 9
5 Type verification and type tests . 9
6 Routine tests . 9
7 Marking and instructions . 9
Bibliography . 10

© IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
VACUUM CLEANERS AND DUST EXTRACTORS PROVIDING
EQUIPMENT PROTECTION LEVEL Dc FOR THE COLLECTION
OF COMBUSTIBLE DUSTS – PARTICULAR REQUIREMENTS
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.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 62784 edition 1.1 contains the first edition (2017-05) [documents 61J/660/FDIS and
61J/667/RVD] and its amendment 1 (2019-01) [documents 61J/696/CDV and 61J/703/
RVC].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in this
publication.
– 4 – IEC 62784:2017+AMD1:2019 CSV
© IEC 2019
International standard IEC 62784 has been prepared by subcommittee 61J: Electrical motor-
operated cleaning appliances for commercial use, of IEC technical committee 61: Safety of
household and similar electrical appliances.
This standard cancels and replaces Annex CC of IEC 60335-2-69, on which this standard is
based.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of the base publication and its amendment will
remain unchanged until the stability 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.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
© IEC 2019
INTRODUCTION
This document 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 document 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.
An appliance employing materials or having forms of co
...