1、 IEC 60335-2-68 Edition 4.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Household and similar electrical appliances Safety Part 2-68: Particular requirements for spray extraction machines, for commercial use Appareils lectrodomestiques et analogues Scurit Partie 2-68: Exigences particulires
2、pour les machines de nettoyage par pulvrisation et aspiration, usage commercial IEC60335-2-68:2012 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
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16、z des questions contactez-nous: csciec.ch. IEC 60335-2-68 Edition 4.0 2012-03 INTERNATIONAL STANDARD NORME INTERNATIONALE Household and similar electrical appliances Safety Part 2-68: Particular requirements for spray extraction machines, for commercial use Appareils lectrodomestiques et analogues S
17、curit Partie 2-68: Exigences particulires pour les machines de nettoyage par pulvrisation et aspiration, usage commercial INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE W ICS 97.020 PRICE CODE CODE PRIX ISBN 978-2-88912-030-7 Registered trademark of the Internat
18、ional Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 60335-2-68 IEC:2012
19、 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 8 3 Terms and definitions . 8 4 General requirement . 10 5 General conditions for the tests 10 6 Classification 11 7 Marking and instructions . 11 8 Protection against access to live parts 14 9 Starting of motor-operated ap
20、pliances 14 10 Power input and current . 14 11 Heating 14 12 Void 15 13 Leakage current and dielectric strength at operating temperature . 15 14 Transient overvoltages . 15 15 Moisture resistance 15 16 Leakage current and electric strength . 17 17 Overload protection of transformers and associated c
21、ircuits . 17 18 Endurance 17 19 Abnormal operation 17 20 Stability and mechanical hazards . 18 21 Mechanical strength . 18 22 Construction . 21 23 Internal wiring . 23 24 Components . 23 25 Supply connection and external flexible cords 23 26 Terminals for external conductors . 25 27 Provision for ea
22、rthing . 25 28 Screws and connections . 25 29 Clearances, creepage distances and solid insulation 25 30 Resistance to heat and fire . 25 31 Resistance to rusting 25 32 Radiation, toxicity and similar hazards 25 Annexes . 29 Annex AA (informative) Emission of acoustical noise . 30 Annex BB (informati
23、ve) Emission of vibration . 33 Bibliography 34 60335-2-68 IEC:2012 3 Figure 101 Impact test apparatus . 26 Figure 102 Apparatus for testing the abrasion resistance of current-carrying hoses 27 Figure 103 Apparatus for testing the resistance to flexing of current-carrying hoses . 27 Figure 104 Config
24、uration of the hose for the freezing treatment 28 Figure 105 Flexing positions for the hose after removal from the freezing cabinet . 28 Figure AA.1 Machine with cleaning head connected by hose and connecting tube 32 Table 12 Pull force and torque . 24 4 60335-2-68 IEC:2012 INTERNATIONAL ELECTROTECH
25、NICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-68: Particular requirements for spray extraction machines, for commercial use FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrote
26、chnical 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 Specificatio
27、ns, 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,
28、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 decisi
29、ons 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 interna
30、tional 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 orde
31、r 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 clea
32、rly 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 b
33、odies. 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, prope
34、rty 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 t
35、his 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
36、or all such patent rights. International Standard IEC 60335-2-68 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 fourth edition cancels and replaces the
37、 third edition published in 2002 and its Amendments 1 (2005) and 2 (2007). It constitutes a technical revision. The principal changes in this edition as compared with the third edition of IEC 60335-2-68 are as follows (minor changes are not listed): the title has been changed for better distinction
38、with regard to IEC 60335-2-72; the scope has been revised editorially to avoid misunderstandings; terms and definitions has been revised with regard to the requirements revised; 60335-2-68 IEC:2012 5 the standard has been revised in general and updated regarding state-of-the-art, as far as necessary
39、, in particular some changes has been made to Clauses 15, 22 and 25; the markings and instructions (Clause 7) have been revised basically; a new Annex AA Emission of acoustical noise was added; and a new Annex BB Emission of vibration was added. The text of this standard is based on the following do
40、cuments: FDIS Report on voting 61J/490/FDIS 61J/499/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. This part 2 is to be used i
41、n conjunction with the latest edition of IEC 60335-1 and its amendments. It was established on the basis of the fifth edition (2010) 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 60
42、335-1, so as to convert that publication into the IEC standard: Safety requirements for spray extraction machines for commercial use. 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”, “modifica
43、tion” 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
44、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 defin
45、ed in Clause 3. When a definition concerns an adjective, the adjective and the associated noun are also in bold. A list of all parts of the IEC 60335 series, under the general title: Household and similar electrical appliances Safety, can be found on the IEC website. The committee has decided that t
46、he contents of this publication 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. 6 60335
47、-2-68 IEC:2012 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 elect
48、rical, mechanical, 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 op
49、eration 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
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