IEC_60335-2-72.pdf

INTERNATIONALSTANDARDIEC60335-2-72Second edition2002-07Household and similar electrical appliances Safety Part 2-72:Particular requirements for automaticmachines for floor treatment for commercialand industrial useAppareils lectrodomestiques et analogues Scurit Partie 2-72:Rgles particulires pour les machines automatiquesde traitement des sols usage industriel et commercialReference numberIEC 60335-2-72:2002(E)Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(www.iec.ch/catlg-e.htm)enablesyou to search by a variety of criteria including text searches,technicalcommittees and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just PublishedThis summary of recently issued publications(www.iec.ch/JP.htm)is alsoavailable by email.Please contact the Customer Service Centre(see below)forfurther information.Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00INTERNATIONALSTANDARDIEC60335-2-72Second edition2002-07Household and similar electrical appliances Safety Part 2-72:Particular requirements for automaticmachines for floor treatment for commercialand industrial useAppareils lectrodomestiques et analogues Scurit Partie 2-72:Rgles particulires pour les machines automatiquesde traitement des sols usage industriel et commercial IEC 2002 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chLFor price,see current cataloguePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission 2 60335-2-72 IEC:2002(E)CONTENTSFOREWORD.3INTRODUCTION.51Scope.62Normative references.73Definitions.74General requirement.85General conditions for the tests.86Classification.87Marking and instructions.98Protection against access to live parts.109Starting of motor-operated appliances.1010Power input and current.1011Heating.1012Void.1113Leakage current and electric strength at operating temperature.1114Transient overvoltages.1115Moisture resistance.1116Leakage current and electric strength.1217Overload protection of transformers and associated circuits.1218Endurance.1219Abnormal operation.1220Stability and mechanical hazards.1321Mechanical strength.1622Construction.1623Internal wiring.1824Components.1825Supply connection and external flexible cords.1926Terminals for external conductors.1927Provisions for earthing.2028Screws and connections.2029Clearances,creepage distances and solid insulation.2030Resistance to heat and fire.2031Resistance to rusting.2032Radiation,toxicity and similar hazards.20Annexes.21Annex AA(normative)Precast concrete flags.22Bibliography.23Figure 101 Impact test apparatus.2160335-2-72 IEC:2002(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-72:Particular requirements for automatic machinesfor floor treatment for commercial and industrial useFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical committees(IEC National Committees).The object of the IEC is to promoteinternational co-operation on all questions concerning standardization in the electrical and electronic fields.Tothis end and in addition to other activities,the IEC publishes International Standards.Their preparation isentrusted to technical committees;any IEC National Committee interested in the subject dealt with mayparticipate in