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1、Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN61558-2-9:2003IncorporatingCorrigendum No. 1Safety of power transformers, power supply units and similar products Part 2-9: Particular require
2、ments for transformers for class III handlamps for tungsten filament lampsThe European Standard EN 61558-2-9:2003 has the status of aBritish StandardICS 29.180 BS EN 61558-2-9:2003National forewordThis British Standard is the official English language version ofEN 61558-2-9:2003. It is identical wit
3、h IEC 61558-2-9:2002. It supersedesBS EN 60742:1996 which will be withdrawn on 2005-12-01. It should be noted that BS EN 61558-2-9:2003 should be used in conjunction withBS EN 61558-1:1998.The UK participation in its preparation was entrusted to Technical CommitteePEL/96, Small transformers, which h
4、as the responsibility to:aid enquirers to understand the text;present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;monitor related international and European developments and promulgate them in the UK.A list of
5、 organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Cor
6、respondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or ofBritish Standards Online.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 does not o
7、f itself confer immunity from legal obligations.Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSIThis British Standard was published under the authority of the Standards Policy and Strategy Committee on7 April 200
8、3 BSI 25 May 2004ISBN 0 580 41543 0Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amd. No.DateComment
9、s15088Corrigendum No. 125 May 2004Additional information added to National forewordAmendments issued since publicationEUROPEAN STANDARDEN 61558-2-9NORME EUROPENNEEUROPISCHE NORMJanuary 2003ICS 29.180Supersedes EN 60742:1995English versionSafety of power transformers, power supply units and similar p
10、roductsPart 2-9: Particular requirements for transformers for class III handlamps for tungsten filament lamps (IEC 61558-2-9:2002)Scurit des transformateurs, blocs dalimentation et produits analogues Partie 2-9: Rgles particulirespour les transformateurs pour baladeuses de class III pour lampes fila
11、mentde tungstne(CEI 61558-2-9:2002)Sicherheit von Transformatoren, Netzgerten und dergleichenTeil 2-9: Besondere Anforderungenan Transformatoren fr Handleuchten der Schutzklasse III fr Wolframdrahtlampen (IEC 61558-2-9:2002)Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mo
12、n Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSIThis European Standard was approved by CENELEC on 2002-12-01. 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 w
13、ithout 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 version in any other langu
14、age 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, Denmark, Finland, France,
15、Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.CENELECEuropean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrote
16、chnische NormungCentral 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 61558-2-9:2003 EPage 11EN 6155829:2003Licensed Copy: Institute Of Technology Tallaght, Institute of Tec
17、hnology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSIForewordThe text of document 96/184/FDIS, future edition 1 of IEC 61558-2-9, prepared by IEC TC 96, Small power transformers, reactors, supply units and similar products, was submitted to the IEC-CENELEC parallel vote and was app
18、roved by CENELEC as EN 61558-2-9 on 2002-12-01.This Part 2-9 of EN 61558 replaces section 4 of chapter III of EN 60742:1995. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identicalnational standard or by endorsement(dop) 2003
19、-09-01 latest date by which the national standards conflictingwith the EN have to be withdrawn(dow) 2005-12-01This Part 2-9 is intended to be used in conjunction with EN 61558-1:1997.This Part 2-9 supplements or modifies the corresponding clauses in EN 61558-1, so as to convert that publication into
20、 the European Standard: Particular requirements for transformers for class III handlamps for tungsten filament lamps.When a particular subclause of Part 1 is not mentioned in this Part 2-9, that subclause applies as far as is reasonable. Where this Part 2-9 states addition, modification or replaceme
21、nt, the relevant text of Part 1 is to be adapted accordingly.In this standard, the following print types are used:- requirements proper: in roman type;- test specifications: in italic type;- explanatory matter: in smaller roman type.In the text of this standard the words in bold are defined in claus
22、e 3.Subclauses which are additional to those in Part 1 are numbered starting from 101.Endorsement noticeThe text of the International Standard IEC 61558-2-9:2002 was approved by CENELEC as a EuropeanStandard without any modification.Licensed Copy: Institute Of Technology Tallaght, Institute of Techn
23、ology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSICONTENTS1Scope . 42Normative references. 53Definitions . 54General requirements . 55General notes on tests . 56Ratings . 57Classification . 58Marking and other information . 69Protection against accessibility of hazardous live part
24、s . 610 Change of input voltage setting . 711 Output voltage and output current under load . 712 No-load output voltage . 713 Short-circuit voltage . 814 Heating . 815 Short-circuit and overload protection . 816 Mechanical strength .8 17 Protection against harmful ingress of dust, solid objects and
25、moisture . 818 Insulation resistance and dielectric strength . 819 Construction . 820 Components . 1021 Internal wiring . 1022 Supply connection and other external flexible cables or cords. 1023 Terminals for external conductors . 1124 Provision for protective earthing . 1125 Screws and connections
26、. 1126 Creepage distances, clearances and distances through insulation . 11 27 Resistance to heat, abnormal heat, fire, and tracking . 1128 Resistance to rusting . 11Annexes . 12 Table 101 Output voltages ratio for transformers for class III handlampsfor tungsten filament lamps .8 Licensed Copy: Ins
27、titute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSISAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR PRODUCTS Part 2-9: Particular requirements for transformersfor class III handlamps for tungsten filament lamps1ScopeRepla
28、cement:This International Standard covers such aspects of safety as electrical, thermal and mechanical.This Part 2-9 of IEC 61558 applies to stationary or portable single-phase air-cooled (natural or forced) associated safety isolating transformers for class III handlamps for tungsten filament lamps
29、, having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz and a rated output not exceeding 10 kVA.Transformers for class III handlamps for tungsten filament lampshave a no-load output voltage and a rated output voltage not exceeding 50 V a.c. or120 V ripple-f
30、ree d.c.;are used where double or reinforced insulation between circuits is required by the installation rules or by the appliance specification;have a low variation between no-load and rated output voltage;have a limited output voltage.This standard is applicable to dry-type transformers. The windi
31、ngs may be encapsulated or non-encapsulated.NOTE 1 For transformers filled with liquid dielectric or pulverised material, such as sand, additional requirements are under consideration.NOTE 2 Attention is drawn to the fact that for transformers intended to be used in vehicles, on board ships and airc
32、raft, additional requirements (from other applicable standards, national rules, etc.) may be necessary;for transformers intended for use in tropical areas, measures to protect the enclosure and the components inside the enclosure against external influences like fungus, vermin and termites should al
33、so be considered; in locations where special environmental conditions prevail, additional requirements (from other applicable standards, national rules, etc.) may be necessary.This standard also applies to transformers incorporating electronic circuits. This standard does not apply to external circu
34、its and their components intended to be connected to the input and output terminals or socket-outlets of the transformer.Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:46 GMT+00:00 2007, Uncontrolled Copy, (c) BSI2Normative referencesThis clause of Part 1
35、is applicable.3DefinitionsThis clause of Part 1 is applicable except as follows:Addition:3.1.101transformer for class III handlamps for tungsten filament lampsassociated safety isolating transformer intended to supply one or more class III handlamps for tungsten filament lamps4General requirementsTh
36、is clause of Part 1 is applicable.5General notes on testsThis clause of Part 1 is applicable.6RatingsThis clause of Part 1 is applicable except as follows:Addition:6.101The rated output voltage shall not exceed 50 V a.c. or 120 V ripple-free d.c.6.102The rated output shall not exceed 10 kVA.6.103The
37、 rated frequency shall not exceed 500 Hz.6.104The rated supply voltage shall not exceed 1 000 V a. c.Compliance with 6.101 to 6.104 is checked by inspection of the marking.7ClassificationThis clause of Part 1 is applicable except as follows:7.2Replacement:According to short-circuit protection or protectio
