IEC 60335-2-50-2002 Household and similar electrical appliances - Safety - Part 2-50 Particular requirements for commercial electric bains-marie《家用和类似用途电器的安全.第2-50部分 商用双层电蒸锅的特殊要求》.pdf

《IEC 60335-2-50-2002 Household and similar electrical appliances - Safety - Part 2-50 Particular requirements for commercial electric bains-marie《家用和类似用途电器的安全.第2-50部分 商用双层电蒸锅的特殊要求》.pdf》由会员分享，可在线阅读，更多相关《IEC 60335-2-50-2002 Household and similar electrical appliances - Safety - Part 2-50 Particular requirements for commercial electric bains-marie《家用和类似用途电器的安全.第2-50部分 商用双层电蒸锅的特殊要求》.pdf（26页珍藏版）》请在麦多课文档分享上搜索。

1、INTERNATIONALSTANDARDIEC60335-2-50Fourth edition2002-11Household and similar electrical appliances Safety Part 2-50:Particular requirements for commercialelectric bains-marieAppareils lectrodomestiques et analogues Scurit Partie 2-50:Rgles particulires pour les bains-marielectriques usage collectifR

2、eference numberIEC 60335-2-50:2002(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-Publication numberingAs from 1 January 1997 all IEC publications are issued with a designati

3、on 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 amendm

4、ent 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

5、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 publicati

6、ons 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 (http:/www.iec.ch/searchpub/cur_fut.htm)enables you to search by a variety of criteria including text searches, technicalcommittees and date of publicati

7、on. On-line information is also available onrecently issued publications, withdrawn and replaced publications, as well ascorrigenda. 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 Cust

8、omerService Centre (see below) for further 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 00Copyright International Electrotech

9、nical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-INTERNATIONALSTANDARDIEC60335-2-50Fourth edition2002-11Household and similar electrical appliances Safety Part 2-50:Particular requirements for commercialelectric b

10、ains-marieAppareils lectrodomestiques et analogues Scurit Partie 2-50:Rgles particulires pour les bains-marielectriques usage collectif 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 ph

11、otocopying 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.chKFor price, see current catalogu

12、ePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 2 60335-2-50 IEC:2002(E)CONTENTSF

13、OREWORD 3INTRODUCTION 51 Scope 62 Normative references. 63 Definitions . 64 General requirement 75 General conditions for the tests . 86 Classification . 87 Marking and instructions 88 Protection against access to live parts 109 Starting of motor-operated appliances 1010 Power input and current1011

14、Heating.1012 Void 1113 Leakage current and electric strength at operating temperature 1114 Transient overvoltages1115 Moisture resistance.1116 Leakage current and electric strength .1417 Overload protection of transformers and associated circuits1418 Endurance 1419 Abnormal operation.1420 Stability

15、and mechanical hazards1421 Mechanical strength1522 Construction .1523 Internal wiring.1624 Components .1725 Supply connection and external flexible cords.1726 Terminals for external conductors .1727 Provision for earthing1728 Screws and connections .1829 Clearances, creepage distances and solid insu

16、lation 1830 Resistance to heat and fire .1831 Resistance to rusting 1832 Radiation, toxicity and similar hazards 18Annexes20Bibliography20Figure 101 Splash apparatus19Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking

17、 permitted without license from IHS-,-60335-2-50 IEC:2002(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-50: Particular requirementsfor commercial electric bains-marieFOREWORD1) The IEC (International Electrotechnical Commission) is a worldwi

18、de 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 act

19、ivities, the IEC publishes International Standards. Their preparation isentrusted to technical committees; any IEC National Committee interested in the subject dealt with mayparticipate in this preparatory work. International, governmental and non-governmental organizations liaisingwith the IEC also

20、 participate in this preparation. The IEC collaborates closely with the InternationalOrganization for Standardization (ISO) in accordance with conditions determined by agreement between thetwo organizations.2) The formal decisions or agreements of the IEC on technical matters express, as nearly as p

21、ossible, aninternational consensus of opinion on the relevant subjects since each technical committee has representationfrom all interested National Committees.3) The documents produced have the form of recommendations for international use and are published in the formof standards, technical specif

22、ications, technical reports or guides and they are accepted by the NationalCommittees in that sense.4) 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 stan

23、dards. 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

24、 standards.6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subjectof 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

25、subcommittee 61E:Safety of electrical commercial catering equipment, of IEC technical committee 61: Safety ofhousehold and similar electrical appliances.This fourth edition cancels and replaces the third edition published in 2000. It constitutes atechnical revision.The text of this part of IEC 60335

26、 is based on the following documents:FDIS Report on voting61E/405/FDIS 61E/417/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 itsa

27、mendments. It was 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 toconvert that publication into the IEC standard:

28、Safety requirements for commercial electricbains-marie.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 4 60335-2-50 IEC:2002(E)When a particular subclause of Part 1 is not ment

29、ioned in this part 2, that subclause appliesas far as is reasonable. When this standard states “addition“, “modification“ or “replacement“, therelevant 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

30、 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; additional annexes are lettered AA, BB, etc.NOTE 3 The following print types are used: requirements: in

31、roman type; test specifications: in italic type; notes: in small roman type.Words in bold in the text are defined in Clause 3. When a definition of Part 1 concerns an adjective, theadjective and the associated noun are also in bold .The committee has decided that the contents of this publication wil

32、l remain unchanged until2004. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended.The following differences exist in the countries indicated below. 6.1: Class 01 appliances are allowed (Japan). 6.2: For appliances intended to be installed in a kitc

33、hen, an appropriate degree of protection against harmfulingress of water is required according to their height of installation (France). 13.2: Leakage current limits are different (Japan). 16.2: Leakage current limits are different (Japan). Clause 21: For appliances intended to be installed in a kit

34、chen, different values of impact energy areapplicable according to the height of the impact point (France).A bilingual version of this publication may be issued at a later date.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or

35、networking permitted without license from IHS-,-60335-2-50 IEC:2002(E) 5 INTRODUCTIONIt has been assumed in the drafting of this International Standard that the execution of itsprovisions is entrusted to appropriately qualified and experienced persons.This standard recognizes the internationally acc

36、epted level of protection against hazards suchas electrical, mechanical, thermal, fire and radiation of appliances when operated as innormal use taking into account the manufacturers instructions. It also covers abnormalsituations that can be expected in practice.This standard takes into account the

37、 requirements of IEC 60364 as far as possible so thatthere is compatibility with the wiring rules when the appliance is connected to the supplymains. However, national wiring rules may differ.If an appliance within the scope of this standard also incorporates functions that are coveredby another par

38、t 2 of IEC 60335, the relevant part 2 is applied to each function separately, asfar as is reasonable. If applicable, the influence of one function on the other is taken intoaccount.This standard is a product family standard dealing with the safety of appliances and takesprecedence over horizontal an

39、d generic standards covering the same subject.An appliance that complies with the text of this standard will not necessarily be considered tocomply with the safety principles of the standard if, when examined and tested, it is found tohave other features that impair the level of safety covered by th

40、ese requirements.An appliance employing materials or having forms of construction differing from those detailedin the requirements of this standard may be examined and tested according to the intent ofthe requirements and, if found to be substantially equivalent, may be considered to complywith the

41、standard.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,- 6 60335-2-50 IEC:2002(E)HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-50: Particular requirementsfor commer

42、cial electric bains-marie1 ScopeThis clause of Part 1 is replaced by the following.This International Standard deals with the safety of electrically operated commercial bains-marie not intended for household use, their rated voltage being not more than 250 V forsingle-phase appliances connected betw

43、een one phase and neutral, and 480 V for otherappliances.NOTE 101 These appliances are used, for example in restaurants, canteens, hospitals and similar commercialenterprises.The electrical part of appliances making use of other forms of energy is also within the scopeof this standard.As far as is p

44、racticable, this standard deals with the common hazards presented by thesetypes of appliances.NOTE 102 Attention is drawn to the fact that for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may benecessary; in many countries additional requirements

45、are specified by the national health authorities, the nationalauthorities responsible for the protection of labour, the national water supply authorities and similar authorities; for appliances intended to be used outdoors, additional requirements may be necessary.NOTE 103 This standard does not app

46、ly to appliances designed exclusively for industrial purposes; appliances intended to be used in locations where special conditions prevail, such as the presence of acorrosive or explosive atmosphere (dust, vapour or gas); continuous process appliances for the mass production of food.2 Normative ref

47、erencesThis clause of Part 1 is applicable.3 DefinitionsThis clause of Part 1 is applicable except as follows.3.1.4 Addition:NOTE 101 The rated power input is the sum of the power inputs of all the individual elements in the appliancethat can be on at one time; where there are several such combinati

48、ons possible, that giving the highest power inputis used in determining the rated power input.Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-60335-2-50 IEC:2002(E) 7 3.1.9 Replacement:normal operationoperation of the appliance under the following conditionsOpen-well and wet-heat-type bains-marie are filled with water to the indicated level andtopped up during the test in accordance with the manufacturers instructions. The appliance isoperate