1、BRITISH STANDARDBS EN 60335-2-73:2003+A2:2009 Household and similar electrical appliances Safety Part 2-73: Particular requirements for fixed immersion heatersICS 91.140.65; 97.100.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3
2、g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58National forewordThis British Standard is the UK implementation of EN 60335-2-73:2003+A2:2009. It was derived by CENELEC from IEC 60335-2-73:2002, incorporating amendments 1:2006 and 2:2009. It supersedes BS EN 60335-
3、2-73:2003 which will be withdrawn on 1 October 2014.The start and finish of text introduced or altered by IEC amendment is in-dicated in the text by tags.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
4、 participation in its preparation was entrusted by Technical Committee 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 t
5、o its secretary.This 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 60335-2-73:2003+A2:2009This British Standard was published
6、 under the authority of the Standards Policy and Strategy Committee on30 October 2003 BSI 2010Amendments/corrigenda issued since publicationAmd. No. Date Comments 16486 31 July 2006 Implementation of IEC amendment 1:2006 with CENELEC endorsement A1:200630 April 2010 Implementation of IEC amendment 2
7、:2009 with CENELEC endorsement A2:2009ISBN 978 0 580 65777 1EUROPEAN STANDARD EN 60335-2-73:2003+A2 NORME EUROPENNE EUROPISCHE NORM December 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische N
8、ormung Central Secretariat: rue 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 60335-2-73:2003 E ICS 91.140.65 Supersedes EN 60335-2-73:1996English version Household and similar electrical a
9、ppliances - Safety Part 2-73: Particular requirements for fixed immersion heaters (IEC 60335-2-73:2002, modified) Appareils lectrodomestiques et analogues - Scurit Partie 2-73: Rgles particulires pour les thermoplongeurs installs poste fixe (CEI 60335-2-73:2002, modifie) Sicherheit elektrischer Gert
10、e fr den Hausgebrauch und hnliche Zwecke Teil 2-73: Besondere Anforderungen fr ortsfeste Heizeinstze (IEC 60335-2-73:2002, modifiziert) This European Standard was approved by CENELEC on 2003-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the cond
11、itions for giving this European Standard the status of 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 t
12、hree official versions (English, French, German). A version 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 electrotechn
13、ical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. Foreword The text of the International Standard IEC
14、60335-2-73:2002 (61/2176/FDIS), prepared by the IEC Technical Committee 61, together with the common modifications prepared by CENELEC TC 61, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60335-2-73 on 2003-05-01. This European Standard replaces EN 60335-2-73:199
15、6 + corrigendum December 1999. 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 (dop) 2004-05-01 - date on which national standards conflicting with the EN have to be withdrawn
16、 (dow) 2006-05-01 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 edition of that standard. Amendments and revisions of Part 1 have also to be taken into accoun
17、t 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 convert it into the European Standard: Safety requirements for fixed electric immersion heaters. W
18、hen 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 of Part 1 is to be adapted accordingly. NOTE 1 The following numbering system is used: - subc
19、lauses, 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, BB, etc.;
20、- 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 specifications: in italic type; - notes: in small roman type. Words in bold in the text are defined in Cla
21、use 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 those listed in Annex ZA to EN 60335-1. There are no national deviations from this European Sta
22、ndard, other than those listed in Annex ZB to EN 60335-1. _BS EN 60335-2-73:2003+A2:2009EN 60335-2-73:2003+A2:2009 (E)Page 2Introduction 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/EE
23、C. For products having mechanical 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 Dir
24、ective are covered by this standard together with the principal objectives of the Low Voltage Directive. _ Endorsement notice The text of the International Standard IEC 60335-2-73:2002 was approved by CENELEC as a European Standard with agreed common modifications. Foreword to amendment A1The text o
25、f document 61/2957/FDIS, future amendment 1 to IEC 60335-2-73:2002, prepared by IEC Technical Committee 61, Safety of household and similar electrical appliances, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 60335-2-73:2003 on 2006-03-01. The follo
26、wing dates are 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) 2006-12-01 - date on which national standards conflicting with the amendment have to be withdrawn (dow) 2009-03-01 This ame
27、ndment supplements or modifies the corresponding clauses of EN 60335-2-73:2003. As a consequence of endorsing amendment 1:2006 to IEC 60335-2-73:2002, the common modifications in EN 60335-2-73:2003 are replaced by IEC text and therefore withdrawn. There are no special national conditions causing a d
28、eviation from this amendment. There are no national deviations from this amendment. _ Endorsement notice The text of amendment 1:2006 to the International Standard IEC 60335-2-73:2002 was approved by CENELEC as an amendment to the European Standard without any modification. _ _ BS EN 60335-2-73:2003
29、+A2:2009EN 60335-2-73:2003+A2:2009 (E)Page 3Foreword to amendment A2The text of document 61/3866/FDIS, future amendment 2 to IEC 60335-2-73:2002, prepared by IEC Technical Committee 61, Safety of household and similar electrical appliances, was submitted to the IEC-CENELEC parallel vote and was appr
30、oved by CENELEC as amendment A2 to EN 60335-2-73:2003 on 2009-10-01. The following dates are 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) 2010-07-01 - date on which national standards
31、 conflicting with the amendment have to be withdrawn (dow) 2014-10-01 This amendment supplements or modifies the corresponding clauses of EN 60335-2-73:2003. There are no special national conditions causing a deviation from this amendment. There are no national deviations from this amendment. p NOTE
32、 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 60335-2-73:2002 was approved by CENELEC as an amendment to the European Standard without any modification. p In t
33、he Bibliography, add the following note to the standard mentioned: ISO 13732-1 NOTE Harmonized as EN ISO 13732-1:2008 (not modified). _ BS EN 60335-2-73:2003+A2:2009EN 60335-2-73:2003+A2:2009 (E)Page 4CONTENTS INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Definitions 8 4 General requirement.8
34、 5 General conditions for the tests 8 6 Classification8 7 Marking and instructions.8 8 Protection against access to live parts9 9 Starting of motor-operated appliances 9 10 Power input and current .9 11 Heating 9 12 Void .9 13 Leakage current and electric strength at operating temperature9 14 Transi
35、ent overvoltages .9 15 Moisture resistance 9 16 Leakage current and electric strength.9 17 Overload protection of transformers and associated circuits .9 18 Endurance10 19 Abnormal operation 10 20 Stability and mechanical hazards .10 21 Mechanical strength .10 22 Construction.10 23 Internal wiring.1
36、0 24 Components .11 25 Supply connection and external flexible cords 11 26 Terminals for external conductors.11 27 Provision for earthing .11 28 Screws and connections.11 29 Clearances, creepage distances and solid insulation 11 30 Resistance to heat and fire.11 31 Resistance to rusting11 32 Radiati
37、on, toxicity and similar hazards11 Annexes .12 Bibliography12 BS EN 60335-2-73:2003+A2:2009EN 60335-2-73:2003+A2:2009 (E)Page 5INTRODUCTION It has been assumed in the drafting of this International Standard that the execution of its provisions is entrusted to appropriately qualified and experienced
38、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 This standard takes into account the requirements of IEC 60364 as far as possible so that there is compatib
39、ility 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 relevant part 2 is applied to each function s
40、eparately, 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 the standard if, when examined and tested, it is f
41、ound 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, i
42、f found to be substantially equivalent, may be considered to comply with the standard. situations that can be expected in practice and takes into account the way in whichelectromagnetic phenomena can affect the safe operation of appliances. normal use taking into account the manufacturers instructio
43、ns. It also covers abnormal 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 is not necessary to specify particular requi
44、rements 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 Horizontal and generic standards covering a haz
45、ard 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, generic standards, such as ISO 13732-1 for hot sur
46、faces, are not applicable in addition to Part 1 or part 2 standards. #$BS EN 60335-2-73:2003+A2:2009EN 60335-2-73:2003+A2:2009 (E)Page 6HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-73: Particular requirements for fixed immersion heaters 1 Scope This clause of Part 1 is replaced by the f
47、ollowing. This International Standard deals with the safety of fixed electric immersion heaters for household and similar purposes that are intended for installation in a water tank open to the atmosphere for heating water to a temperature below its boiling point. The rated voltage is not more than
48、250 V for single-phase appliances and 480 V for other appliances. NOTE 101 The water tank may have alternative means for heating water, such as the circulation of hot water supplied from a separate boiler. NOTE 102 Immersion heaters having a rated power input up to 25 kW for incorporation as an alte
49、rnative heating source in central heating boilers are also within the scope of this standard. 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 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 h
