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 978-0-626-22272-7 SANS 60335-2-12:2009 Edition 2.1 IEC 60335-2-12:2008 Edition 5.1 SOUTH AFRICAN NATIONAL STANDARD Household and similar electrical
4、appliances Safety Part 2-12: Particular requirements for warming plates and similar appliances This national standard is the identical implementation of IEC 60335-2-12:2008 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction wi
5、th 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 the SABS.SANS 60335-2-12:2009
6、 Edition 2.1 IEC 60335-2-12:2008 Edition 5.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to include the effects of electromagnetic phenomena on appliances, to define the scope with regard to the specific application of appliances and the relevance of the standard to challenged per
7、sons and children, to provide an indication of the range of intended applications, to apply the bibliography of SANS 60335-1 to this part of the standard, and to add a referenced standard. National foreword This South African standard was approved by National Committee SABS TC 72, Safety of electric
8、al 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 electrical and electronic apparatus, as published by Government
9、Notice No. R. 1079 (Government Gazette 25245) of 1 August 2003. This SANS document was published in April 2009. This SANS document supersedes SANS 60335-2-12:2003 (edition 2). This standard may only be used and printed by approved subscription and freemailing clients of the SABS. IEC 60335-2-12 Edit
10、ion 5.1 2008-07 INTERNATIONAL STANDARD NORME INTERNATIONALE Household and similar electrical appliances Safety Part 2-12: Particular requirements for warming plates and similar appliances Appareils lectrodomestiques et analogues Scurit Partie 2-12: Rgles particulires pour les chauffe-plats et appare
11、ils analogues INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE CC ICS 13.120; 97.040 PRICE CODE CODE PRIX ISBN 2-8318-9752-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale SANS 60
12、335-2-12:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 2 60335-2-12 IEC:2002+A1:2008 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Definitions 6 4 General requirement.7 5 General conditions for the tests 7 6 Cl
13、assification7 7 Marking and instructions.7 8 Protection against access to live parts8 9 Starting of motor-operated appliances 8 10 Power input and current .8 11 Heating 8 12 Void8 13 Leakage current and electric strength at operating temperature8 14 Transient overvoltages .9 15 Moisture resistance 9
14、 16 Leakage current and electric strength.10 17 Overload protection of transformers and associated circuits .10 18 Endurance10 19 Abnormal operation 10 20 Stability and mechanical hazards .10 21 Mechanical strength .10 22 Construction.11 23 Internal wiring.11 24 Components .11 25 Supply connection a
15、nd external flexible cords 12 26 Terminals for external conductors.12 27 Provision for earthing .12 28 Screws and connections.12 29 Clearances, creepage distances and solid insulation12 30 Resistance to heat and fire.12 31 Resistance to rusting12 32 Radiation, toxicity and similar hazards12 Annexes
16、13 Bibliography13 SANS 60335-2-12:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60335-2-12 IEC:2002+A1:2008 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-12: Particular requiremen
17、ts for warming plates and similar appliances FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on al
18、l questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publi
19、cation(s)”). Their preparation 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. I
20、EC collaborates closely 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 IEC on technical matters express, as nearly as possible, an international consensus of o
21、pinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made t
22、o 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 user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparen
23、tly to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rend
24、ered 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 liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of i
25、ts 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 (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any ot
26、her IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be th
27、e 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 IEC technical committee 61: Safety of household and similar electrical appliances. This consolidated version of IEC 60335-2-
28、12 consists of the fifth edition (2002) documents 61/2232/FDIS and 61/2307/RVD and its amendment 1 (2008) documents 61/3541/FDIS and 61/3595/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
29、 5.1. A vertical line in the margin shows where the base publication has been modified by amendment 1. Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. SANS 60335-2-12:2009This standard may only be used and printed by
30、 approved subscription and freemailing clients of the SABS. 4 60335-2-12 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 and its amendments. It was established on the basis of the fourth edi
31、tion (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 requirements for electric warming plates and simil
32、ar appliances. 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 adapted accordingly. NOTE 2 The following numbering system
33、 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 clause or subclause; additional annexes are lettered AA,
34、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 concerns an adjective, the adjective and the associated noun are also in bold. The fo
35、llowing differences exist in the countries indicated below. 7.12: The indication concerning appliances with a connector incorporating a thermostat is to be marked on the appliance (USA). The committee has decided that the contents of the base publication and its amendments will remain unchanged unti
36、l 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, replaced by a revised edition, or amended. NOTE 4 The attention of National Committees is drawn to
37、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 with the new requirements and to equip themselves for conducting new or revised tests. It is the r
38、ecommendation 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 60335-2-12:2009This standard may only be used and printed by approved subscription and freemailing clients
39、 of the SABS.60335-2-12 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 experienced persons. This standard recognizes the internationally accepted level of protection a
40、gainst 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 situations that can be expected in practice and takes into account the way in which electromagnetic phen
41、omena 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 appliance is connected to the supply mains. However, national wiring rules may differ. If an appliance wi
42、thin 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 applicable, the influence of one function on the other is taken into account. When a part 2 standard do
43、es 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 is not necessary to specify particular requirements for the appliance in question over and above
44、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 Horizontal and generic standards covering a hazard are not applicable since they have been taken int
45、o 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, generic standards, such as ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or pa
46、rt 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 to have other features that impair the level of safety covered by these requirements. An applian
47、ce 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 found to be substantially equivalent, may be considered to comply with the standard. SANS 60335-2-1
48、2:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 6 60335-2-12 IEC:2002+A1:2008 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-12: Particular requirements for warming plates and similar appliances 1 Scope This clause of Part 1 i
49、s replaced by the following. This International Standard deals with the safety of electric warming plates, warming trays and similar appliances intended to keep food or vessels warm, for household and similar purposes, their rated voltage being not more than 250 V. Appliances intended for normal household and similar use and that may also be used by laymen in shops, in light industry and on farms are within the scope of this standard. However, if the appliance is intended to be used professio
