SANS 60335-2-49-2009 Household and similar electrical appliances - Safety Part 2-49 Particular requirements for commercial electric appliances for keeping food and crockery warm《家用.pdf

1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA

2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any

3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21719-8 SANS 60335-2-49:2009 Edition 4.1 IEC 60335-2-49:2008 Edition 4.1SOUTH AFRICAN NATIONAL STANDARD Household and similar electrical a

4、ppliances Safety Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm This national standard is the identical implementation of IEC 60335-2-49:2008 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can onl

5、y be used in conjunction with SANS 60335-1. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of th

6、e SABS. SANS 60335-2-49:2009 Edition 4.1 IEC 60335-2-49:2008 Edition 4.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to change the title, the introduction, the scope, to add definitions, to change the classification of appliances, to add requirements for marking and instructions,

7、power input and current, heating, to add tests that cover abnormal operation, to include the impact test carried out on the coil carriers, to change the construction requirements for thermal cut-outs and to add a referenced standard to the bibliography. National foreword This South African standard

8、was approved by National Committee SABS TC 72, Safety of electrical appliances and electronic equipment, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document, by reference, forms part of the Compulsory specification for

9、 electrical and electronic apparatus, as published by Government Notice No. R. 1079 (Government Gazette 25245) of 1 August 2003. This SANS document was published in February 2009. This SANS document supersedes SANS 60335-2-49:2003 (edition 4). This standard may only be used and printed by approved s

10、ubscription and freemailing clients of the SABS. IEC 60335-2-49 Edition 4.1 2008-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Household and similar electrical appliances Safety Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm Appareils lectro

11、domestiques et analogues Scurit Partie 2-49: Rgles particulires pour les appareils lectriques usage collectif destins maintenir au chaud les aliments et la vaisselle INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CE ICS 97.030 PRICE CODE CODE PRIX ISBN 2-8318-98

12、33-1 SANS 60335-2-49:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 2 60335-2-49 IEC:2002+A1:2008 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Definitions 7 4 General requirement.8 5 General conditions for the

13、tests 8 6 Classification9 7 Marking and instructions.9 8 Protection against access to live parts12 9 Starting of motor-operated appliances 12 10 Power input and current .12 11 Heating 13 12 Void14 13 Leakage current and electric strength at operating temperature14 14 Transient overvoltages .14 15 Mo

14、isture resistance 14 16 Leakage current and electric strength.15 17 Overload protection of transformers and associated circuits .16 18 Endurance16 19 Abnormal operation 16 20 Stability and mechanical hazards .17 21 Mechanical strength .18 22 Construction.19 23 Internal wiring.20 24 Components .20 25

15、 Supply connection and external flexible cords 20 26 Terminals for external conductors.21 27 Provision for earthing .21 28 Screws and connections.21 29 Clearances, creepage distances and solid insulation21 30 Resistance to heat and fire.22 31 Resistance to rusting22 32 Radiation, toxicity and simila

16、r hazards22 Annexes .24 Annex N (normative) Proof tracking test.24 Bibliography24 Figure 101 Splash apparatus .23 SANS 60335-2-49:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60335-2-49 IEC:2002+A1:2008 3 INTERNATIONAL ELECTROTECHNICAL C

17、OMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-49: Particular requirements for commercial electric appliances for keeping food and crockery warm FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all natio

18、nal 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 Standards, Technical

19、 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 preparatory work. In

20、ternational, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The

21、 formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendatio

22、ns for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end us

23、er. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication

24、 shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No

25、liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (

26、including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct applicatio

27、n of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. 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 I

28、EC subcommittee 61E: Safety of electrical commercial catering equipment, of IEC technical committee 61: Safety of household and similar electrical appliances. This consolidated version of IEC 60947-6-2 consists of the fourth edition (2002) documents 61E/404/FDIS and 61E/416/RVD and its amendment 1 (

29、2008) documents 61E/617/FDIS and 61E/620/RVD. The technical content is therefore identical to the base edition and its amendment and has been prepared for user convenience. It bears the edition number 4.1. A vertical line in the margin shows where the base publication has been modified by amendment

30、1. SANS 60335-2-49:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 4 60335-2-49 IEC:2002+A1:2008 The French version of this standard has not been voted upon. This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 a

31、nd its amendments. 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 to convert that publication into the IEC

32、 standard: Safety requirements for commercial electric hot cupboards. 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“ or “replacement“, the relevant text in Part 1 is to be ada

33、pted 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 numbered starting from 101, including those in a replaced cl

34、ause 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 Clause 3. When a definition of Part 1 concerns an adjectiv

35、e, the adjective and the associated noun are also in bold . 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 kitchen, an appropriate degree of protection against harmful ingress of water

36、is required according to their height of installation (France). 13.2: Leakage current limits are different (Japan). Clause 21: For appliances intended to be installed in a kitchen, different values of impact energy are applicable according to the height of the impact point (France). The committee ha

37、s decided that the contents of the base publication and its amendments will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, re

38、placed by a revised edition, or amended. NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance w

39、ith the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of the amendment 1 be adopted for implementation nationally not earlier than 12 months or later than 36 months from the date of publication. SANS 60335-2-4

40、9:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60335-2-49 IEC:2002+A1:2008 5 INTRODUCTION It has been assumed in the drafting of this International Standard that the execution of its provisions is entrusted to appropriately qualified and

41、 experienced persons. This standard recognizes the internationally accepted level of protection against hazards such as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal use taking into account the manufacturers instructions. It also covers abnormal situati

42、ons that can be expected in practice and takes into account the way in which electromagnetic phenomena can affect the safe operation of appliances. This standard takes into account the requirements of IEC 60364 as far as possible so that there is compatibility with the wiring rules when the applianc

43、e 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 far as is reasonable. If applic

44、able, the influence of one function on the other is taken into account. When a part 2 standard does not include additional requirements to cover hazards dealt with in Part 1, Part 1 applies. NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it

45、is not necessary to specify particular requirements for the appliance in question over and above the general requirements. 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. NOTE 2 Hor

46、izontal and generic standards covering a hazard are not applicable since they have been taken into consideration when developing the general and particular requirements for the IEC 60335 series of standards. For example, in the case of temperature requirements for surfaces on many appliances, generi

47、c standards, such as ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards. An appliance that complies with 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

48、 to have other features that impair the level of safety covered by these requirements. An appliance employing materials or having forms of construction differing from those detailed in the requirements of this standard may be examined and tested according to the intent of the requirements and, if fo

49、und to be substantially equivalent, may be considered to comply with the standard. SANS 60335-2-49:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 6 60335-2-49 IEC:2002+A1:2008 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-49: Particular requirements for commercial electric hot cupboards 1 Scope This clause of Part 1 is replaced by the following: This International Standard deals with the safety of electrically