1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 2-73: Particular requirements for fixed immersion heatersThe European Standard EN 60335-2-73:2
2、003, with the incorporation of amendment A1:2006, has the status of a British StandardICS 91.140.65Household and similar electrical appliances Safety BRITISH STANDARDBS EN 60335-2-73:2003Incorporating Amendment No. 1BS EN 60335-2-73:2003interests informed;This British Standard was published under th
3、e authority of the Standards Policy and Strategy Committee on 30 October 2003 BSI 2006ISBN 0 580 42839 7A 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 re
4、ferred to 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 prov
5、isions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations. monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front
6、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. Date Comments16486 31 July 2006 See national forewordCPL/61, Safety of household
7、 electrical appliances, to Subcommittee CPL/61/32, Safety of water heaters, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK National forewordTh
8、is British Standard is the official English language version of EN 60335-2-73:2003, including amendment A1:2006. It was derived by CENELEC from IEC 60335-2-73:2002, including amendment 1:2006. It supersedes BS EN 60335-2-73:1997 which is withdrawn.The start and finish of text introduced or altered b
9、y IEC 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 by !“.The UK participation in its preparation was entrusted by Technical Committee EUROPEAN STANDARD EN 60335-2-73
10、 NORME EUROPENNE EUROPISCHE NORM May 2006 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 rights of exploitat
11、ion 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 appliances - Safety Part 2-73: Particular requirements for fixed immersion heaters (IEC 60335-2-73:2002,
12、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 Gerte fr den Hausgebrauch und hnliche Zwecke Teil 2-73: Besondere Anforderungen fr ortsfeste Heizeinstze (IE
13、C 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 conditions for giving this European Standard the status of a national standard without any alteration. Up-to
14、-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 version in any other language made by translation un
15、der 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, Denmark, Finland, France, Germany, Greece, Hungary,
16、 Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. August 2003 + A1 -53306 NE-23002:37 - - 2 Foreword The text of the International Standard IEC 60335-2-73:2002 (61/2176/FDIS), prepared by the IEC Technical
17、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 60335-2-73:1996 + corrigendum December 1999. The following dates are applica
18、ble: - 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 (dow) 2006-05-01 This part 2 has to be used in conjunction wi
19、th 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 account and the dates when such changes become applicable will be st
20、ated 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. When a particular subclause of Part 1 is not mentioned in this
21、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: - subclauses, tables and figures that are numbered starting from 101
22、 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.; - subclauses, notes and annexes that are additional to those i
23、n 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 Clause 3. When a definition concerns an adjective, the adjective
24、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 Standard, other than those listed in Annex ZB to EN 60335-1. _Pag
25、e 2EN 60335273:2003- - 3 -53306 NE-23002:37 Introduction 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
26、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 standard together with the principal objectives of th
27、e 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. TACIFIDOM NOMMOCISNO 1 Scepo p af ddAret w“reta knatf eht ni “irsrap trgamta eht ot nepo“ :hpaosrehp.“e fissalC 6i
28、tacoin p 6.2 .eteleD 7 Marka gnisni dntructsnoi p 1.21.7 :ddA - a stmetatne taht eht mimersnoi retaeh si ylno sni eb otts a ni dellaystme wrehmele gnitaeh eht esi tne wlaays woleb waret s ,leveluch sa c a niistre-nfknat defi , cilppa.elba 19 Aronbaml eporanoit p 19.2 :ddA ehT i tsets irrac toni no t
29、uo deisremmi sretaeh noni eb ot dednetnlatsli den metsys a itaeh eht erehwgn si tnemele yawlas retaw woleb veles ,luch sa c a niistre-nknat def. _ Page 3EN 60335273:2003Foreword to amendment A1 The text of document 61/2957/FDIS, future amendment 1 to IEC 60335-2-73:2002, prepared by IEC Technical Co
30、mmittee 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 following dates are applicable: - latest date by which the amendment has to be implemented at nationa
31、l 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 amendment supplements or modifies the corresponding clauses of EN 60335-2-73:2003. As a consequence
32、 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 deviation from this amendment. There are no national deviations from this amendment. _ Endorsemen
33、t 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. _ _ CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Definitions 7 4 General requirement.7 5 General conditi
34、ons for the tests 7 6 Classification7 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 Void .8 13 Leakage current and electric strength at operating temperature8 14 Transient overvoltages .
35、8 15 Moisture resistance 8 16 Leakage current and electric strength.8 17 Overload protection of transformers and associated circuits .8 18 Endurance9 19 Abnormal operation 9 20 Stability and mechanical hazards .9 21 Mechanical strength .9 22 Construction.9 23 Internal wiring.9 24 Components .10 25 S
36、upply connection and external flexible cords 10 26 Terminals for external conductors.10 27 Provision for earthing .10 28 Screws and connections.10 29 Clearances, creepage distances and solid insulation 10 30 Resistance to heat and fire.10 31 Resistance to rusting10 32 Radiation, toxicity and similar
37、 hazards10 Annexes .11 Bibliography11 Page 4EN 60335273:2003INTRODUCTION 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 leve
38、l 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 compatibility with the wiring rules when the appliance is connected to the
39、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, the influence of
40、 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 necessarily be c
41、onsidered 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 in the require
42、ments 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. Page 5EN 60335273:2003situations that can be expected in practice and takes into account the way in whichelectrom
43、agnetic phenomena can affect the safe operation of appliances. normal use taking into account the manufacturers instructions. It also covers abnormal HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES SAFETY Part 2-73: Particular requirements for fixed immersion heaters 1 Scope This clause of Part 1 is rep
44、laced by the following. 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
45、not more than 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 incorporat
46、ion as an alternative 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 an
47、d 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 home. However, in general, it does not take into account the use of appliances by young children or i
48、nfirm persons without supervision; playing with the appliance by young children. NOTE 103 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 specifie
49、d by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities. NOTE 104 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 elem
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