IEC-60335-2-91-2008.pdf
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1、 IEC 60335-2-91 Edition 3.0 2008-02 INTERNATIONAL STANDARD Household and similar electrical appliances Safety Part 2-91: Particular requirements for walk-behind and hand-held lawn trimmers and lawn edge trimmers IEC 60335-2-91:2008(E) Copyright International Electrotechnical Commission Provided by I
2、HS under license with IECLicensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:03:26 MDTNo reproduction or networking permitted without license from IHS -,-,- THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no par
3、t 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 IECs member National Committee in the country of the requester. If you have any questions about IEC copyri
4、ght 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. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch About the IEC The
5、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. P
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9、ore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 Copyright International Electrotechnical Commission Provided by IHS under licens
10、e with IECLicensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:03:26 MDTNo reproduction or networking permitted without license from IHS -,-,- IEC 60335-2-91 Edition 3.0 2008-02 INTERNATIONAL STANDARD Household and similar electrical appliances Safety Part 2-91: Particular requirements for wa
11、lk-behind and hand-held lawn trimmers and lawn edge trimmers INTERNATIONAL ELECTROTECHNICAL COMMISSION X ICS 65.060.70 PRICE CODE ISBN 2-8318-9572-3 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:0
12、3:26 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 60335-2-91 IEC:2008(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Definitions 8 4 General requirement.9 5 General conditions for the tests9 6 Classification9 7 Marking and instructions.10 8
13、 Protection against access to live parts11 9 Starting of motor-operated appliances 11 10 Power input and current .11 11 Heating 11 12 Void11 13 Leakage current and electric strength at operating temperature11 14 Transient overvoltages .11 15 Moisture resistance 11 16 Leakage current and electric str
14、ength.12 17 Overload protection of transformers and associated circuits .12 18 Endurance12 19 Abnormal operation 12 20 Stability and mechanical hazards .12 21 Mechanical strength .14 22 Construction.15 23 Internal wiring.17 24 Components.17 25 Supply connection and external flexible cords 17 26 Term
15、inals for external conductors.18 27 Provision for earthing .18 28 Screws and connections.18 29 Clearances, creepage distances and solid insulation18 30 Resistance to heat and fire.18 31 Resistance to rusting18 32 Radiation, toxicity and similar hazards19 Annexes .24 Annex B (normative) Appliances po
16、wered by rechargeable batteries24 Annex D (normative) Thermal motor protectors26 Annex I (normative) Motors having basic insulation that is inadequate for the rated voltage of the appliance26 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Boeing Co
17、/5910770001 Not for Resale, 07/25/2008 02:03:26 MDTNo reproduction or networking permitted without license from IHS -,-,- 60335-2-91 IEC:2008(E) 3 Annex AA (informative) Safety signs and symbols which may be used on lawn trimmers and lawn edge trimmers .27 Annex BB (informative) Vibration .29 Annex
18、CC (informative) Noise test code Engineering method (grade 2) 34 Annex DD (informative) Example of a material and construction fulfilling the requirements for an artificial surface.40 Annex EE (informative) Safety instructions 42 Bibliography44 Figure 101 Guard, lawn trimmer (see 20.101.1) .20 Figur
19、e 102 Guard, lawn edge trimmer (see 20.101.2).21 Figure 103 Guard strength test (hand-held appliances)22 Figure 104 Cutting head strength test (see 21.102)22 Figure 105 Cutting means measurement (see 22.103) .23 Figure BB.1 Examples of transducer location/orientation (hand-held trimmers) 32 Figure B
20、B.2 Examples of transducer location/orientation (walk-behind machines)33 Figure CC.1 Microphone positions on the hemisphere (see Table CC.1) 35 Figure DD.1 Sketch of the measurement surface covered with an artificial surface (not to scale) 41 Table CC.1 Co-ordinates of microphone positions36 Table C
21、C.2 Absorption coefficients 37 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=Boeing Co/5910770001 Not for Resale, 07/25/2008 02:03:26 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 60335-2-91 IEC:2008(E) INTERNATIONAL
22、ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-91: Particular requirements for walk-behind and hand-held lawn trimmers and lawn edge trimmers FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization compr
23、ising 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 Stand
24、ards, 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 prepa
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- IEC 60335 91 2008
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