1、 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 poussires procurant un niveau de protection du matriel
2、Dc, pour la collecte des poussires combustibles Exigences particulires IEC 62784:2017-05(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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19、86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62784 Edition 1.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Vacuum cleaners and dust extractors providin
20、g equipment protection level Dc for the collection of combustible dusts Particular requirements Aspirateurs et extracteurs de poussires procurant un niveau de protection du matriel Dc, pour la collecte des poussires combustibles Exigences particulires INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMIS
21、SION ELECTROTECHNIQUE INTERNATIONALE ICS 97.080 ISBN 978-2-8322-4346-6 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention!
22、Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 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
23、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 IEC 62784:2017 IEC 2017 3 INTERNAT
24、IONAL 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 a
25、ll 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, T
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34、 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 responsibl
35、e 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
36、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 a
37、bove 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
38、data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 62784:2017 IEC 2017 5 INTRODUCTION This document recognizes the internationally accepted level of protection against hazards such as electrical, mech
39、anical, thermal, fire and radiation of appliances when operated as in normal use taking into account the manufacturers 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
40、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 const
41、ruction 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.
42、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 doc
43、ument for “vacuum cleaners and dust extractors providing equipment protection level Dc for the collection of combustible dusts“ reflects the final agreement of JWG1. 6 IEC 62784:2017 IEC 2017 VACUUM CLEANERS AND DUST EXTRACTORS PROVIDING EQUIPMENT PROTECTION LEVEL Dc FOR THE COLLECTION OF COMBUSTIBL
44、E DUSTS PARTICULAR REQUIREMENTS 1 Scope This International Standard 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 c
45、ombustible 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 6007
46、9-0. 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
47、. 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 cove
48、r 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 fo
49、r 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
