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 978-0-626-21698-6 SANS 60335-2-50:2008 Edition 4.1 IEC 60335-2-50:2008 Edition 4.1SOUTH AFRICAN NATIONAL STANDARD Household and similar electrical a
4、ppliances Safety Part 2-50: Particular requirements for commercial electric bains-marie This national standard is the identical implementation of IEC 60335-2-50:2008 and is adopted with the permission of the International Electrotechnical Commission. WARNING Can only be used in conjunction with SANS
5、 60335-1. Published by Standards South Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa This standard may only be used and printed by approved subscription and freemailing clients
6、 of the SABS.SANS 60335-2-50:2008 Edition 4.1 IEC 60335-2-50:2008 Edition 4.1 Table of changes Change No. Date Scope IEC amdt 1 2008 Amended to add a requirement for classification, and to modify a requirement for thermal cut-outs in construction. National foreword This South African standard was ap
7、proved by National Committee StanSA TC 72, Safety of electrical appliances and electronic equipment, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This SANS document, by reference, forms part of the Compulsory specification for electric
8、al and electronic apparatus, as published by Government Notice No. R. 1079 (Government Gazette 25245) of 1 August 2003. Compliance with the requirements of this SANS document will be deemed to be compliance with the said compulsory specification. This SANS document was published in July 2008. This S
9、ANS document supersedes SANS 60335-2-50:2003 (edition 4). This standard may only be used and printed by approved subscription and freemailing clients of the SABS. IEC 60335-2-50 Edition 4.1 2008-03 INTERNATIONAL STANDARD Household and similar electrical appliances Safety Part 2-50: Particular requir
10、ements for commercial electric bains-marie INTERNATIONAL ELECTROTECHNICAL COMMISSION CB ICS 97.040.20 PRICE CODE ISBN 2-8318-9544-8 SANS 60335-2-50:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 2 60335-2-50 IEC:2002+A1:2007(E) CONTENTS F
11、OREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Definitions6 4 General requirement.7 5 General conditions for the tests 8 6 Classification8 7 Marking and instructions.8 8 Protection against access to live parts10 9 Starting of motor-operated appliances 10 10 Power input and current .10
12、 11 Heating10 12 Void .11 13 Leakage current and electric strength at operating temperature11 14 Transient overvoltages .11 15 Moisture resistance11 16 Leakage current and electric strength.14 17 Overload protection of transformers and associated circuits .14 18 Endurance14 19 Abnormal operation14 2
13、0 Stability and mechanical hazards .14 21 Mechanical strength.15 22 Construction.15 23 Internal wiring.16 24 Components.17 25 Supply connection and external flexible cords 17 26 Terminals for external conductors.17 27 Provision for earthing .17 28 Screws and connections.18 29 Clearances, creepage di
14、stances and solid insulation18 30 Resistance to heat and fire.18 31 Resistance to rusting18 32 Radiation, toxicity and similar hazards18 Annexes .20 Bibliography20 Figure 101 Splash apparatus .19 SANS 60335-2-50:2008This standard may only be used and printed by approved subscription and freemailing
15、clients of the SABS.60335-2-50 IEC:2002+A1:2007(E) 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-50: Particular requirements for commercial electric bains-marie FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide or
16、ganization for standardization comprising 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 activitie
17、s, IEC publishes International Standards, 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 deal
18、t with may participate in this preparatory work. International, 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
19、 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 opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.
20、 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 to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they
21、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 transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and
22、 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 rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they
23、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 its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature wha
24、tsoever, 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 other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publi
25、cations 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 the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. This part of Inte
26、rnational Standard IEC 60335 has been prepared by IEC 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 60335-2-50 consists of the fourth edition (2002) document
27、s 61E/405/FDIS and 61E/417/RVD and its amendment 1 (2007) documents 61E/588/FDIS and 61E/593/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
28、the base publication has been modified by amendment 1. SANS 60335-2-50:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS. 4 60335-2-50 IEC:2002+A1:2007(E) This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
29、 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 stand
30、ard: Safety requirements for commercial electric bains-marie. 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 acc
31、ordingly. 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 clause or
32、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 adjective, the a
33、djective 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 is requi
34、red 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 kitchen, different values of impact energy are applicable according to the height of
35、 the impact point (France). The committee has 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 pu
36、blication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. SANS 60335-2-50:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60335-2-50 IEC:2002+A1:2007(E) 5 INTRODUCTION It has been assumed in the drafting of this I
37、nternational 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 and radiation of appliances when operate
38、d 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 wiring rules when the appliance is con
39、nected 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 applicable, th
40、e 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 with the text of this standard will not ne
41、cessarily 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 construction differing from those detailed
42、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 60335-2-50:2008This standard may only be used and printed by approved subscription and freemai
43、ling clients of the SABS. 6 60335-2-50 IEC:2002+A1:2007(E) HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-50: Particular requirements for commercial electric bains-marie 1 Scope This clause of Part 1 is replaced by the following. This International Standard deals with the safety of electr
44、ically operated commercial bains- marie not intended for household use, their rated voltage being not more than 250 V for single-phase appliances connected between one phase and neutral, and 480 V for other appliances. NOTE 101 These appliances are used, for example in restaurants, canteens, hospita
45、ls and similar commercial enterprises. The electrical part of appliances making use of other forms of energy is also within the scope of this standard. As far as is practicable, this standard deals with the common hazards presented by these types of appliances. NOTE 102 Attention is drawn to the fac
46、t that for 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 the national health authorities, the national authorities responsible for the protection of labour, the national w
47、ater supply authorities and similar authorities; for appliances intended to be used outdoors, additional requirements may be necessary. NOTE 103 This standard does not apply to appliances designed exclusively for industrial purposes; appliances intended to be used in locations where special conditio
48、ns prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas); continuous process appliances for the mass production of food. 2 Normative references This clause of Part 1 is applicable. 3 Definitions This clause of Part 1 is applicable except as follows. 3.1.4 Additio
49、n: NOTE 101 The rated power input is the sum of the power inputs of all the individual elements in the appliance that can be on at one time; where there are several such combinations possible, that giving the highest power input is used in determining the rated power input. SANS 60335-2-50:2008This standard may only be used and printed by approved subscription and freemailing clients of the SABS.60335-2-50 IEC:2002+A1:2007(E) 7 3.1.9 Replacement: normal operation operation of t
