1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 2-74: Particular requirements for portable immersion heatersThe European Standard EN 60335-2-7
2、4:2003, with the incorporation of amendment A1:2006, has the status of a British StandardICS 13.120; 97.040.50Household and similar electrical appliances Safety BRITISH STANDARDBS EN 60335-2-74: 2003Incorporating Amendment No. 1BS EN 60335-2-74:2003This British Standard was published under the autho
3、rity of the Standards Policy and Strategy Committee on 16 April 2003 BSI 2006ISBN 0 580 41567 8A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to
4、 in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of
5、 a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European development
6、s and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 11 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No.
7、Date Comments16553 29 September 2006 See national forewordThe UK participation in its preparation was entrusted by Technical Committee CPL/61, Safety of household electrical appliances, to Subcommittee CPL/61/07, Heated appliance group, which has the responsibility to: aid enquirers to understand th
8、e text; present to the responsible international/European committee any National forewordThis British Standard is the official English language version of EN 60335-2-74:2003, including amendment A1:2006. It is identical with IEC 60335-2-74:2002, including amendment 1:2006. It supersedes BS EN 60335-
9、2-74:1996 which is withdrawn. The start and finish of text introduced or altered by amendment is indicated 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 in the text by !“.EUROPEAN STANDARD
10、EN 60335-2-74 NORME EUROPENNE EUROPISCHE NORM March 2003 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2003 CENELEC - All righ
11、ts 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 Part 2-74: Particular requirements for portable immersion heat
12、ers (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: Besondere Anforderungen fr ortsvernderliche Tauchheizgert
13、e (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 of a national standard without any alteration. Up-to-date li
14、sts 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 version in any other language made by translation under the
15、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, Denmark, Finland, France, Germany, Greece, Hungary, Iceland
16、, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. + A1 June 2006 Foreword The text of the International Standard IEC 60335-2-74:2002 (61/2177/FDIS), prepared by the IEC Technical Committee 61, was submitted to the Unique Acce
17、ptance 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 publication of an identical national standard or by endorsement
18、 (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 requirements. It was established on the basis of the 2002 e
19、dition 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 modifies the corresponding clauses of EN 60335-1, so as to conve
20、rt 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 “addition“, “modification“ or “replacement“, the relevant tex
21、t 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 notes in Part 1, they are numbered starting from 101, inclu
22、ding 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 are used: - requirements: in roman type; - test specificatio
23、ns: 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 causing a deviation from this European Standard, other than t
24、hose 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 the printed version. _ Page 2EN 60335274:2003Introduction p
25、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 mechanical moving parts, a risk assessment in accordance with the Machinery Directive, 98/37/EC, has shown th
26、at 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 standard together with the principal objectives of the Low Voltage Directive. _ Endorsement notice The te
27、xt of the International Standard IEC 60335-2-74:2002 was approved by CENELEC as a European Standard without any modification. _ Page 3EN 60335274:2003Foreword to amendment A1 The text of document 61/2962/CDV, future amendment 1 to IEC 60335-2-74:2002, prepared by IEC Technical Committee 61, Safety o
28、f 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 applicable: - latest date by which the amendment has to be implemented at nati
29、onal 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 supplements or modifies the corresponding clauses of EN 60335-2-74:2003. There are no
30、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 60335-2-74:2002 was approved by CENELEC as an amendment to the European Standard without any
31、modification. _ Page 4 EN 60335-2-74:2003 CONTENTS INTRODUCTION.5 1 Scope 6 2 Normative references .6 3 Definitions6 4 General requirement.7 5 General conditions for the tests 7 6 Classification7 7 Marking and instructions.7 8 Protection against access to live parts 8 9 Starting of motor-operated ap
32、pliances.8 10 Power input and current8 11 Heating 8 12 Void .8 13 Leakage current and electric strength at operating temperature .8 14 Transient overvoltages .8 15 Moisture resistance 8 16 Leakage current and electric strength .8 17 Overload protection of transformers and associated circuits 8 18 En
33、durance8 19 Abnormal operation 9 20 Stability and mechanical hazards 9 21 Mechanical strength .9 22 Construction.9 23 Internal wiring.9 24 Components.9 25 Supply connection and external flexible cords .10 26 Terminals for external conductors .10 27 Provision for earthing10 28 Screws and connections
34、.10 29 Clearances, creepage distances and solid insulation .10 30 Resistance to heat and fire .10 31 Resistance to rusting 10 32 Radiation, toxicity and similar hazards 10 Annexes .11 Bibliography .11 Page 5 EN 60335-2-74:2003 INTRODUCTION It has been assumed in the drafting of this International St
35、andard 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 normal
36、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 60364
37、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, the r
38、elevant 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. This standard is a product family standard dealing with the safety of appliances and takes precedence over horizontal and generic standards
39、 covering the same subject. 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
40、. 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 found to be substantially equivalent, may be considered to comply with the standard. Pa
41、ge 6 EN 60335-2-74:2003 HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 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 househ
42、old and similar purposes, their rated voltage being not more than 250 V. Appliances 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
43、 this standard. As far as is practicable, this standard deals with the common hazards presented by appliances that are encountered by all persons in and around the home. However, in general, it does not take into account the use of appliances by young children or infirm persons without supervision;
44、playing with the appliance by young children. 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 necessary; in many countries, additional requirements are specified by the national health authoriti
45、es, 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 cor
46、rosive or explosive atmosphere (dust, vapour or gas); heating elements incorporated in portable appliances, such as appliances for heating liquids (IEC 60335-2-15); aquarium heaters (IEC 60335-2-55); fixed immersion heaters (IEC 60335-2-73). 2 Normative references This clause of Part 1 is applicable
47、. 3 Definitions This clause of Part 1 is applicable except as follows. Page 7 EN 60335-2-74:2003 3.1.9 Replacement: normal operation operation of the appliance in a vessel filled with water to the minimum depth of immersion 4 General requirement This clause of Part 1 is applicable. 5 General conditi
48、ons for the tests This clause of Part 1 is applicable except as follows. 5.3 Addition: The additional test of Clause 21 is carried out before the test of Clause 8. 6 Classification This clause of Part 1 is applicable except as follows. 6.2 Addition: Immersion heaters shall be at least IPX7. 7 Markin
49、g and instructions This clause of Part 1 is applicable except as follows. 7.1 Addition: Appliances shall be marked with the maximum and minimum depths of immersion. NOTE 101 The depths of immersion may be indicated by lines only, provided that they are explained in the instructions. NOTE 102 The marking is not required on appliances intended to float. 7.12 Addition: The instructions shall include the substance of the following: details of
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