IEC_60335-2-91.pdf

ORIGINALINTERNATIONALIECSTANDARD60335-2-91Second edition2002-08Household and similar electrical appliances-Safety-Part 2-91:Particular requirements for walk-behind and hand-heldlawn trimmers and lawn edge trimmersAppareils electrodomestiques et analogues-Securite-Partie 2-91:Regles particulieres pour les coupe-gazon et lescoupe-bordures portatifs et a conducteur a piediEC2oo2一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 microfiim.without permission in writing from the publisher.Intemational Electrotechnical Commission,3.rue de Varembe,PO Box 131.CH-1211 Geneva 20.SwitzerlandTelephone:+1229190211 Telefax+412190300 E-mail:inmailiec.ch Web:www.iec.chCommission Electrotechnique InternationalePRICE CODENInternational Electrotechnical CommissionMexAyHapoAHan 3nekTpoTexHnveckan KoMnCCHRFor price,see current cafalogueCopyright by the International Electrotechnical CommissionNed Nov0608:24:33200260335-2-911EC:2002(E)-3Bibliography.28Table AA.1-Extent of reach.23Table AA.2-Values of a and b.0.24Table AA.3-Values of a and b.24Figure 101-Guard.lawn trimmer.18Figure 102-Guard,lawn edge trimmer.19Figure 103-Guard strength test(hand-held appliances).20Figure 104-Cutting head strength test.20Figure 105-Cutting means measurement.21Figure AA.1-Determination of standard aperture.2Copyright by the International Electrotechnical CommissionWed Nov0608:24:362002-4=60335-2-911EC:2002(E)INTERNATIONAL ELECTROTECHNICAL COMMISSIONHOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES-SAFETYPart 2-91:Particular requirements for walk-behindand hand-held lawn trimmers and lawn edge trimmersFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardizationcomprising all national electrotechnical committees(IEC National Committees).The object of the IEC is topromote international co-operation on all questions concerning standardization in the electrical and electronicfields.To this end and in addition to other activities.the IEC publishes International Standards.Theirpreparation is entrusted to technical committees;any IEC National Committee interested in the subject dealtwith may participate in this preparatory work.International,governmental and non-governmentalorganizations liaising with the IEC also participate in this preparation.The IEC collaborates closely with theInternational Organization for Standardization(ISO)in accordance with conditions determined by agreementbetween the two organizations.The formal decisions or agreements of the IEC on technical matters express,as nearly as possible.aninternational consensus of opinion on the relevant subjects since each technicalcommittee hasrepresentation from all interested National Committees.The documents produced have the form of recommendations for international use and are published in theform of standards,technical specifications.technical reports or guides and they are accepted by the NationalCommittees in that sense.In order to promote international unification.IEC National Committees undertake to apply IEC InternationalStandards transparently to the maximum extent possible in their national and regional standards.Anydivergence between the IEC Standard and the corresponding national or regional standard shall be clearlyindicated in the latter.5)The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for anyequipment declared to be in conformity with one of its standards.Attention is drawn to the possibility that some of the elements of this International Standard may be thesubject of patent rights.The IEC shall not be held responsible for identifying any or all such patent rights.This part of International Standard IEC 60335 has been prepared by IEC subcommittee 61F:Safety of hand-held motor-operated electric tools,of IEC technical committee 61:Safety ofhousehold and similar electrical appliances.This second edition cancels and replaces the first edition published in 1997.It constitutes atechnical revision.The text of this part of IEC 60335 is based on the following documents:FDISReport on voting61F/449/FD1S61F/469/RVDFull information on the voting for the approval of this standard can be found in the report onvoting indicated in the above table.This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and itsamendments.It was established on the basis of the fourth edition(2000)of that standard.NOTE 1 When Part 1is 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 toconvert that publication into the IEC standard:Safety requirements for walk-behind and hand-held electric lawn trimmers and lawn edge trimmers.Copyright by the International Electrotechnical CommissionWed Nov0608:24:37200260335-2-911EC:2002(E)）-5-Where a particular subclause of Part 1 is not mentioned in this part 2,that subclause appliesas far as is reasonable.Where this standard states addition,modificationor replacement,the relevant text in Part 1 is to be adapted accordingly.NOTE 2 The following numbering system is usedsubclauses,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,includingthose in a replaced clause or subclause;NOTE 3 The following print types are used:requirements:in roman type;test specifications:in italic type;notes:in small roman typeWords in bold in the text are defined in Clause 3.When a definition concerns an adjective,the adjective and theassociated noun are also in bold.The committee has decided that the contents of this publication will remain unchanged until2004.At this date,the publication will bereconfirmed;withdrawn;replaced by a revised edition,oramended.A bilingual version of this publication may be issued at a later date.Copyright by the International Electrotechnical CommissionWed Nov0608:24:392002