1、BRITISH STANDARDBS EN 60335-2-74: 2003+A2:2009Household and similar electrical appliances Safety Part 2-74: Particular requirements for portable immersion heatersICS 97.040.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3
2、g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58National forewordThis British Standard is the UK implementation of EN 60335-2-74:2003+A2:2009. It is identical to IEC 60335-2-74:2002, incorporating amendments 1:2006 and 2:2009. It supersedes BS EN 60335-2-74:2003 which will
3、 be withdrawn on 1 October 2014.The start and finish of text introduced or altered by IEC amendment is in-dicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by !“.The UK participation in it
4、s preparation was entrusted by Technical Com-mittee CPL/61, Safety of household and similar electrical appliances, to Subcommittee CPL/61/07, Safety of electric appliances, heated appliance group.A list of organizations represented on this subcommittee can be obtained on request to its secretary.Thi
5、s publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 60335-2-74:2003+A2:2009This British Standard was published under the authorit
6、y of the Standards Policy and Strategy Committee on 16 April 2003 BSI 2010Amendments/corrigenda issued since publicationAmd. No. Date Comments 16553 29 September 2006Implementation of IEC amendment 1:2006 with CENELEC endorsement A1:200630 April 2010 Implementation of IEC amendment 2:2009 with CENEL
7、EC endorsement A2:2009ISBN 978 0 580 65778 8EUROPEAN STANDARD EN 60335-2-74:2003+A2 NORME EUROPENNE EUROPISCHE NORM CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: ru
8、e de Stassart 35, B - 1050 Brussels 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60335-2-74:2003 E ICS 13.120; 97.040.50 Supersedes EN 60335-2-74:1996English version Household and similar electrical appliances - Safety Par
9、t 2-74: Particular requirements for portable immersion heaters (IEC 60335-2-74:2002) Appareils lectrodomestiques et analogues - Scurit Partie 2-74: Rgles particulires pour les thermoplongeurs mobiles (CEI 60335-2-74:2002) Sicherheit elektrischer Gerte fr den Hausgebrauch und hnliche Zwecke Teil 2-74
10、: Besondere Anforderungen fr ortsvernderliche Tauchheizgerte (IEC 60335-2-74:2002) This European Standard was approved by CENELEC on 2003-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status o
11、f a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A v
12、ersion in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
13、Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. December 2009 Foreword The text of the International Standard IEC 60335-2-74:2002 (61/2177/FDIS), prepared by the IE
14、C Technical Committee 61, was submitted to the Unique Acceptance Procedure and was approved byCENELEC as EN 60335-2-74 on 2003-03-01. This European Standard replaces EN 60335-2-74:1996. The following dates are applicable: - latest date by which the EN has to be implemented at national level by publi
15、cation of an identical national standard or by endorsement (dop) 2004-03-01 - date on which national standards conflicting with the EN have to be withdrawn (dow) 2006-03-01 This part 2 has to be used in conjunction with EN 60335-1, Household and similar electrical appliances Safety Part 1: General r
16、equirements. It was established on the basis of the 2002 edition of that standard. Amendments and revisions of Part 1 have also to be taken into account and the dates when such changes become applicable will be stated in the relevant amendment or revision of Part 1. This part 2 supplements or modifi
17、es the corresponding clauses of EN 60335-1, so as to convert it into the European Standard: Safety requirements for portable electric immersion heaters. When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies as far as isreasonable. When this standard states “ad
18、dition“, “modification“ or “replacement“, the relevant text ofPart 1 is to be adapted accordingly. NOTE 1 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 n
19、otes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause; - additional annexes are lettered AA, BB, etc.; - subclauses, notes and annexes that are additional to those in the IEC standard are prefixed with the letter Z. NOTE 2 The following print types ar
20、e 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. There are no special national conditions cau
21、sing a deviation from this European Standard, other than those listed in Annex ZA to EN 60335-1. There are no national deviations from this European Standard, other than those listed in Annex ZB to EN 60335-1. p NOTE In this document, p is used in the margin to indicate instructions for preparing th
22、e printed version. _ BS EN 60335-2-74:2003+A2:2009EN 60335-2-74:2003+A2:2009 (E)Page 2Introduction p Add: An investigation by CENELEC TC 61 has shown that all risks from products within the scope of this standard are fully covered by the Low Voltage Directive, 73/23/EEC. For products having mechanic
23、al moving parts, a risk assessment in accordance with the Machinery Directive, 98/37/EC, has shown that the risks are mainly of electrical origin and consequently this directive is not applicable. However, the relevant essential safety requirements of the Machinery Directive are covered by this stan
24、dard together with the principal objectives of the Low Voltage Directive. _ Endorsement notice The text of the International Standard IEC 60335-2-74:2002 was approved by CENELEC as a European Standard without any modification. _ Foreword to amendment A1 The text of document 61/2962/CDV, future amend
25、ment 1 to IEC 60335-2-74:2002, prepared by IEC Technical Committee 61, Safety of household and similar electrical appliances, was submitted to the IEC-CENELEC parallel unique acceptance procedure and was approved by CENELEC as amendment A1 to EN 60335-2-74:2003 on 2006-06-01. The following dates are
26、 applicable: - latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-03-01 - date on which national standards conflicting with the amendment have to be withdrawn (dow) 2009-06-01 This amendment supplem
27、ents or modifies the corresponding clauses of EN 60335-2-74:2003. There are no special national conditions causing a deviation from this amendment. There are no national deviations from this amendment. _ Endorsement notice The text of amendment 1:2006 to the International Standard IEC 60335-2-74:200
28、2 was approved by CENELEC as an amendment to the European Standard without any modification. _ BS EN 60335-2-74:2003+A2:2009EN 60335-2-74:2003+A2:2009 (E)Page 3Foreword to amendment A2The text of document 61/3867/FDIS, future amendment 2 to IEC 60335-2-74:2002, prepared by IEC TC 61, Safety of house
29、hold and similar electrical appliances, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A2 to EN 60335-2-74:2003 on 2009-10-01. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an iden
30、tical national standard or by endorsement (dop) 2010-07-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2014-10-01 This amendment supplements or modifies the corresponding clauses of EN 60335-2-59:2003. There are no special national conditions
31、 causing a deviation from this amendment. There are no national deviations from this amendment. p NOTE In this document, p is used in the margin to indicate instructions for preparing the printed version. _ Endorsement notice The text of amendment 2:2009 to the International Standard IEC 60335-2-74:
32、2002 was approved by CENELEC as an amendment to the European Standard without any modification. p In the Bibliography, add the following note to the standard mentioned: ISO 13732-1 NOTE Harmonized as EN ISO 13732-1:2008 (not modified). _ BS EN 60335-2-74:2003+A2:2009EN 60335-2-74:2003+A2:2009 (E)Pag
33、e 4CONTENTS INTRODUCTION.6 1 Scope 7 2 Normative references .7 3 Definitions7 4 General requirement.8 5 General conditions for the tests 8 6 Classification8 7 Marking and instructions.8 8 Protection against access to live parts 9 9 Starting of motor-operated appliances.9 10 Power input and current9
34、11 Heating 9 12 Void .9 13 Leakage current and electric strength at operating temperature .9 14 Transient overvoltages .9 15 Moisture resistance 9 16 Leakage current and electric strength .9 17 Overload protection of transformers and associated circuits 9 18 Endurance9 19 Abnormal operation 10 20 St
35、ability and mechanical hazards 10 21 Mechanical strength .10 22 Construction.10 23 Internal wiring.10 24 Components.10 25 Supply connection and external flexible cords .11 26 Terminals for external conductors .11 27 Provision for earthing11 28 Screws and connections .11 29 Clearances, creepage dista
36、nces and solid insulation .11 30 Resistance to heat and fire .11 31 Resistance to rusting 11 32 Radiation, toxicity and similar hazards 11 Annexes .12 Bibliography .12 BS EN 60335-2-74:2003+A2:2009EN 60335-2-74:2003+A2:2009 (E)Page 5INTRODUCTION It has been assumed in the drafting of this Internatio
37、nal 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 operated as in n
38、ormal 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 phenomena can affect the safe operation of appliances.“ This standard takes into account the requirements of IEC
39、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 within the scope of this standard also incorporates functions that are covered by another part 2 of IEC 60335,
40、 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. An appliance that complies with the text of this standard will not necessarily be considered to comply with the safety principles of
41、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 in the requirements of this standard may be examined and tested
42、according to the intent of the requirements and, if found to be substantially equivalent, may be considered to comply with the standard. 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 committ
43、ees 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 the general requirements. This standard is a product family standard dealing with the safety of appliances and takes precedence over horiz
44、ontal and generic standards covering the same subject. NOTE 2 Horizontal 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
45、 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 part 2 standards. #$BS EN 60335-2-74:2003+A2:2009EN 60335-2-74:2003+A2:2009 (E)Page 6HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part
46、 2-74: Particular requirements for portable immersion heaters 1 Scope This clause of Part 1 is replaced by the following. This International Standard deals with the safety of portable electric immersion heaters for household and similar purposes, their rated voltage being not more than 250 V. Applia
47、nces not intended for normal household use but which nevertheless may be a source of danger to the public, such as appliances intended to be used by laymen in shops, in light industry and on farms, are within the scope of this standard. As far as is practicable, this standard deals with the common h
48、azards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account NOTE 101 Attention is drawn to the fact that for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be nece
49、ssary; in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour and similar authorities. NOTE 102 This standard does not apply to appliances intended exclusively for industrial purposes; appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas); heating elemen
