IEC 60335-2-88-2002 Household and similar electrical appliances - Safety - Part 2-88 Particular requirements for humidifiers intended for use with heating venti.pdf

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1、INTERNATIONAL STANDARD IEC 60335-2-88 Second edition 2002-10 Household and similar electrical appliances Safety Part 2-88: Particular requirements for humidifiers intended for use with heating, ventilation, or air- conditioning systems Appareils lectrodomestiques et analogues Scurit Partie 2-88: Rgl

2、es particulires pour les humidificateurs destins tre utiliss avec des appareils de chauffage, de ventilation ou de conditionnement dair Reference number IEC 60335-2-88:2002(E)Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series. For exam

3、ple, IEC 34-1 is now referred to as IEC 60034-1. Consolidated editions The 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, the base publication incorporating amendment 1 and the base publicat

4、ion incorporating amendments 1 and 2. Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC, thus ensuring that the content reflects current technology. Information relating to this publication, including its validity, is available

5、 in the IEC Catalogue of publications (see below) in addition to new editions, amendments and corrigenda. Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication, as well as the list of publications issued, is als

6、o available from the following: IEC Web Site (www.iec.ch) Catalogue of IEC publications The on-line catalogue on the IEC web site (http:/www.iec.ch/searchpub/cur_fut.htm) enables you to search by a variety of criteria including text searches, technical committees and date of publication. On-line inf

7、ormation is also available on recently issued publications, withdrawn and replaced publications, as well as corrigenda. IEC Just Published This summary of recently issued publications (http:/www.iec.ch/online_news/ justpub/jp_entry.htm) is also available by email. Please contact the Customer Service

8、 Centre (see below) for further information. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00INTERNATIONAL STANDARD IEC 60335-2-88 Sec

9、ond edition 2002-10 Household and similar electrical appliances Safety Part 2-88: Particular requirements for humidifiers intended for use with heating, ventilation, or air- conditioning systems Appareils lectrodomestiques et analogues Scurit Partie 2-88: Rgles particulires pour les humidificateurs

10、destins tre utiliss avec des appareils de chauffage, de ventilation ou de conditionnement dair IEC 2002 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permi

11、ssion in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch J For price, see current catalogue PRICE CODE Commission Electrotech

12、nique Internationale International Electrotechnical Commission 2 60335-2-88 IEC:2002(E) CONTENTS FOREWORD 4 INTRODUCTION 6 1 Scope 7 2 Normative references. 7 3 Definitions . 8 4 General requirement 8 5 General conditions for the tests . 8 6 Classification . 8 7 Marking and instructions 8 8 Protecti

13、on against access to live parts. 9 9 Starting of motor-operated appliances . 9 10 Power input and current10 11 Heating.10 12 Void 10 13 Leakage current and electric strength at operating temperature10 14 Transient overvoltages10 15 Moisture resistance.10 16 Leakage current and electric strength .11

14、17 Overload protection of transformers and associated circuits11 18 Endurance 11 19 Abnormal operation.11 20 Stability and mechanical hazards11 21 Mechanical strength11 22 Construction .12 23 Internal wiring.13 24 Components .13 25 Supply connection and external flexible cords.13 26 Terminals for ex

15、ternal conductors.13 27 Provision for earthing14 28 Screws and connections .14 29 Clearances, creepage distances and solid insulation 14 30 Resistance to heat and fire .14 31 Resistance to rusting 14 32 Radiation, toxicity and similar hazards14 Annexes15 Annex AA (normative) Gaskets15 Annex BB (norm

16、ative) Test for liquid-containers17 Bibliography1860335-2-88 IEC:2002(E) 3 Table AA.1 Physical properties of gasket materials 15 Table AA.2 Accelerated aging conditions .16 Table BB.1 Oven conditioning temperatures.17 4 60335-2-88 IEC:2002(E) INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND

17、 SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-88: Particular requirements for humidifiers intended for use with heating, ventilation, or air-conditioning systems FOREWORD 1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national ele

18、ctrotechnical committees (IEC National Committees). The object of the 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, the IEC publishes International Standards. Their pr

19、eparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates cl

20、osely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an international consensus of opinion on the

21、relevant subjects since each technical committee has representation from all interested National Committees. 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are

22、 accepted by the National Committees in that sense. 4) In order to promote international unification, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard

23、and the corresponding national or regional standard shall be clearly indicated in the latter. 5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6) Attention is drawn to the po

24、ssibility that some of the elements of this International Standard may be the subject 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 subcommittee 61D: Appliances for air-conditi

25、oning for household and similar purposes, of IEC technical committee 61: Safety of household and similar electrical appliances. This second edition cancels and replaces the first edition published in 1997. It constitutes a technical revision. The text of this part of IEC 60335 is based on the follow

26、ing documents: FDIS Report on voting 61D/117/FDIS 61D/122/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 part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its amendments. It was

27、 established on the basis of the fourth edition (2001) 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 60335-1, so as to convert that publication into the IEC standard: Safety require

28、ments for electric humidifiers intended for use with heating, ventilation, or air-conditioning systems.60335-2-88 IEC:2002(E) 5 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“, “modification“

29、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 are nu

30、mbered 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 defined in

31、Clause 3. When a definition concerns an adjective, the adjective and associated noun are also in bold. The committee has decided that the contents of this publication will remain unchanged until 2004. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or ame

32、nded. The following differences exist in the countries indicated below. 6.1: class 01 appliances are allowed (Japan). 6.1: class 0 and 01 appliances are allowed (South Africa, Poland). A bilingual version of this publication may be issued at a later date. 6 60335-2-88 IEC:2002(E) INTRODUCTION It has

33、 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 electrical, mechanical, thermal, fire a

34、nd 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. This standard takes into account the requirements of IEC 60364 as far as possible so that there is compatibility with the

35、 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 part 2 is applied to each function separately, as

36、far as is reasonable. If applicable, the influence of one function on the other is taken into account. This standard is a product family standard dealing with the safety of appliances and takes precedence over horizontal and generic standards covering the same subject. An appliance that complies wit

37、h the text of this standard will not necessarily be considered to comply with the safety principles of the standard if, when examined and tested, it is found to have other features that impair the level of safety covered by these requirements. An appliance employing materials or having forms of cons

38、truction 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.60335-2-88 IEC:2002(E) 7 HOUSEHOLD AND SIMILAR ELECTRICAL APP

39、LIANCES SAFTEY Part 2-88: Particular requirements for humidifiers intended for use with heating, ventilation, or air-conditioning systems 1 Scope This clause of Part 1 is replaced by the following. This International Standard deals with the safety of electric humidifiers intended for use with heatin

40、g, ventilation, or air-conditioning systems in household, commercial, and light industrial applications (and may include large stand-alone commercial equipment) which operate according to the evaporative or atomization system, water-injection, steam and the like, their maximum rated voltage being no

41、t more than 250 V for single-phase appliances and 600 V for all other appliances. NOTE 101 Air-conditioning equipment to be used in conjunction with the humidifiers covered by this standard are covered in IEC 60335-2-40. As far as is practicable, this standard deals with the common hazards presented

42、 by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account the use of appliances by young children or infirm persons without supervision; playing with the appliance by young children. NOTE 102 Attention is drawn to the fact that for

43、appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be necessary; in many countries, additional requirements are specified by national health authorities, national authorities responsible for the protection of labour and similar authorities. NOTE 103

44、 This standard does not apply to humidifiers without room heating, ventilation or air-conditioning equipment intended exclusively for household use (IEC 60335-2-98); appliances designed exclusively for industrial processing; appliances intended to be used in locations where special conditions prevai

45、l, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas); humidifiers intended for medical purposes (see IEC 60601). 2 Normative references This clause of Part 1 is applicable except as follows. Addition: IEC 60068-2-52:1996, Environmental testing Part 2: Tests Test Kb: S

46、alt mist, cyclic (sodium chloride solution) 8 60335-2-88 IEC:2002(E) 3 Definitions This clause of Part 1 is applicable except as follows. 3.1.9 Replacement: normal operation conditions that apply when the appliance is mounted as in normal use and is operating under the most severe environmental oper

47、ating conditions specified by the manufacturer 3.101 humidifiers appliances which are intended to increase air humidity 3.102 appliances accessible to the general public appliances intended to be located in residential buildings, or in commercial buildings 3.103 appliances not accessible to the gene

48、ral public appliances which are intended to be maintained by qualified service personnel and located either in machine rooms and the like or at a level not less than 2,5 m or in secured rooftop areas 4 General requirement This clause of Part 1 is applicable. 5 General conditions for the tests This c

49、lause of Part 1 is applicable. 6 Classification This clause of Part 1 is applicable except as follows. 6.1 Replacement: Appliances shall be class I, II or III with respect to protection against electrical shock. Compliance is checked by inspection and by the relevant additional tests. 6.101 Appliances shall be classified according to the accessibility as defined in 3.102 and 3.103 C