1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationSafety of transformers, reactors, power supply units and combinations thereofPart 2-9: Particular requirements and tests for transformers and power supply units for class III han
2、dlamps for tungsten filament lampsBS EN 61558-2-9:2011National forewordThis British Standard is the UK implementation of EN 61558-2-9:2011. It is identical to IEC 61558-2-9:2010. It supersedes BS EN 61558-2-9:2003 which will be withdrawn on 2 January 2014.The UK participation in its preparation was
3、entrusted to Technical Committee PEL/96, Small transformers.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BS
4、I 2011ISBN 978 0 580 64545 7 ICS 29.180Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 March 2011.Amendments issued since publicationAmd. No. Date Text affect
5、edBRITISH STANDARDBS EN 61558-2-9:2011EUROPEAN STANDARD EN 61558-2-9 NORME EUROPENNE EUROPISCHE NORM February 2011 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenu
6、e Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61558-2-9:2011 E ICS 29.180 Supersedes EN 61558-2-9:2003English version Safety of transformers, reactors, power supply units and combinations ther
7、eof - Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps for tungsten filament lamps (IEC 61558-2-9:2010) Scurit des transformateurs, bobines dinductance, blocs dalimentation et des combinaisons de ces lments - Partie 2-9: Rgles particulires e
8、t essais pour les transformateurs et blocs dalimentation pour lampes baladeuses de classe III filament de tungstne (CEI 61558-2-9:2010) Sicherheit von Transformatoren, Drosseln, Netzgerten und entsprechende Kombinationen - Teil 2-9: Besondere Anforderungen und Prfungen an Transformatoren und Netzger
9、ten fr Handleuchten der Schutzklasse III mit Wolframdrahtlampen (IEC 61558-2-9:2010) This European Standard was approved by CENELEC on 2011-01-02. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
10、 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 three official versions (English, French, German). A
11、 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 electrotechnical committees of Austria, Belgium, Bulgaria, Croa
12、tia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61558-2-9:2011
13、EN 61558-2-9:2011 - 2 - Foreword The text of document 96/355/FDIS, future edition 2 of IEC 61558-2-9, prepared by IEC TC 96, Transformers, reactors, power supply units, and combinations thereof, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61558-2-9 on 2011-01-02.
14、 This European Standard supersedes EN 61558-2-9:2003. The main changes consist of updating this part in accordance with EN 61558-1:2005, and adding power supply units to the scope. This part has the status of a group safety publication in accordance with IEC Guide 104:1997, The preparation of safety
15、 publications and the use of basic safety publications and group safety publications. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The
16、 following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-10-02 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-01-02 This part is
17、intended to be used in conjunction with the latest edition of EN 61558-1 and its amendments. It is based on EN 61558-1:2005. This part supplements or modifies the corresponding clauses in EN 61558-1, so as to convert that publication into the European standard: Particular requirements and tests for
18、transformers and power supply units for class III handlamps for tungsten filament lamps. Where a particular subclause of Part 1 is not mentioned in this part, that subclause applies as far as is reasonable. Where this part states “addition“, “modification“ or “replacement“, the relevant text of Part
19、 1 is to be adopted accordingly. In this part, the following print types are used: requirements proper: in roman type; test specifications: in italic type; explanatory matters: in smaller roman type. In the text of this part, the words in bold are defined in Clause 3. Subclauses additional to those
20、in Part 1 are numbered starting from 101; supplementary annexes are entitled AA, BB, etc. Annex ZA has been added by CENELEC. _ BS EN 61558-2-9:2011- 3 - EN 61558-2-9:2011 Endorsement notice The text of the International Standard IEC 61558-2-9:2010 was approved by CENELEC as a European Standard with
21、out any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 61558-2-16:2009 NOTE Harmonized as EN 61558-2-16:2009 (not modified). _ BS EN 61558-2-9:2011EN 61558-2-9:2011 - 4 - Annex ZA (normative) Normative references to interna
22、tional publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame
23、ndments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Annex ZA of Part 1 is applicable except as follows: Addition: Publication Year Title EN/HD Year IEC 61558-1 2005 Safety of power transformers, power sup
24、plies, reactors and similar products - Part 1: General requirements and tests EN 61558-1 + corr. August 2005 2006 BS EN 61558-2-9:2011 2 61558-2-9 IEC:2010 CONTENTS 1 Scope.5 2 Normative references .6 3 Terms and definitions .6 4 General requirements.6 5 General notes on tests .6 6 Ratings.6 7 Class
25、ification7 8 Marking and other information 7 9 Protection against electric shock 7 10 Change of input voltage setting 8 11 Output voltage and output current under load .8 12 No-load output voltage .8 13 Short-circuit voltage .9 14 Heating 9 15 Short-circuit and overload protection 9 16 Mechanical st
26、rength .9 17 Protection against harmful ingress of dust, solid objects and moisture9 18 Insulation resistance, dielectric strength and leakage current .9 19 Construction.9 20 Components .11 21 Internal wiring.11 22 Supply connection and other external flexible cable or cords 11 23 Terminals for exte
27、rnal conductors.11 24 Provisions for protective earthing .12 25 Screws and connections.12 26 Creepage distances, clearances and distances through insulation12 27 Resistance to heat, fire and tracking.12 28 Resistance to rusting12 Annexes .13 Bibliography13 Table 101 Ratio of output voltages for tran
28、sformers for class III tungsten filament handlamps 8 BS EN 61558-2-9:201161558-2-9 IEC:2010 5 SAFETY OF TRANSFORMERS, REACTORS, POWER SUPPLY UNITS AND COMBINATIONS THEREOF Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps for tungsten filamen
29、t lamps 1 Scope Replacement: This part of IEC 61558 deals with the safety of transformers for class III handlamps for tungsten filament lamps and power supply units incorporating transformers for class III handlamps for tungsten filament lamps. Transformers incorporating electronic circuits are also
30、 covered by this standard. NOTE 1 Safety includes electrical, thermal, mechanical and chemical aspects. Unless otherwise specified, from here onward, the term transformer covers transformers for class III handlamps for tungsten filament lamps and power supply units incorporating transformers for cla
31、ss III handlamps for tungsten filament lamps. This part is applicable to stationary or portable single-phase air-cooled (natural or forced) independent or associated dry-type transformers. The windings may be encapsulated or non-encapsulated. This standard is applicable to transformers and power sup
32、ply (linear) with internal operational frequencies not exceeding 500 Hz. This standard used in combination with Part 2-16 for switch mode power supply (SMPS) units is also applicable to power supplies with internal operational frequencies higher than 500 Hz. Where the two requirements are in conflic
33、t, the most severe take precedence. The rated supply voltage does not exceed 1 000 V a.c., and the rated supply frequency and the internal operational frequencies do not exceed 500 Hz. Transformers for class III handlamps for tungsten filament lamps have the following additional characteristics: the
34、 no-load output voltage and the rated output voltage do not exceed 50 V a.c. or 120 V ripple-free d.c.; there is only a small difference between the no-load voltage and the rated output voltage. The rated output does not exceed: 10 kVA. This part is not applicable to external circuits and their comp
35、onents intended to be connected to the input terminals and output terminals of the transformers. Transformers covered by this part are used in applications where double or reinforced insulation between circuits is required by the installation rules or by the end product standard. NOTE 2 Attention is
36、 drawn to the following: BS EN 61558-2-9:2011 6 61558-2-9 IEC:2010 - for transformers intended to be used in vehicles, on board ships, and aircraft, additional requirements (from other applicable standards, national rules, etc.) may be necessary; - measures to protect the enclosure and the component
37、s inside the enclosure against external influences such as fungus, vermin, termites, solar-radiation, and icing should also be considered; - the different conditions for transportation, storage, and operation of the transformers should also be considered; - additional requirements in accordance with
38、 other appropriate standards and national rules may be applicable to transformers intended for use in special environments. NOTE 3 Future technological development of transformers may necessitate a need to increase the upper limit of the frequencies, until then this part may be used as a guidance do
39、cument. 2 Normative references This clause of Part 1 is applicable except as follows: Addition: IEC 61558-1:2005, Safety of power transformers, power supplies, reactors and similar products Part 1: General requirements and tests 3 Terms and definitions This clause of Part 1 is applicable, except as
40、follows: Addition: 3.1.101 transformer for class III handlamps for tungsten filament lamps associated safety isolating transformer intended to supply one or more class III handlamps for tungsten filament lamps 3.1.102 power supply unit incorporating transformer for class III handlamps for tungsten f
41、ilament lamps power supply unit where an associated safety isolating transformer is used intended to supply one or more class III handlamps for tungsten filament lamps 4 General requirements This clause of Part 1 is applicable. 5 General notes on tests This clause of Part 1 is applicable. 6 Ratings
42、This clause of Part 1 is applicable, except as follows: Addition: 6.101 The rated output voltage shall not exceed 50 V a.c. or 120 V ripple-free d.c. BS EN 61558-2-9:201161558-2-9 IEC:2010 7 6.102 The rated output shall not exceed 10 kVA. 6.103 The rated supply frequency and internal operational fre
43、quencies shall not exceed 500 Hz. 6.104 The 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. 7 Classification This clause of Part 1 is applicable, except as follows: 7.2 Replacement: According to short-circuit protection or p
44、rotection against abnormal conditions: inherently short-circuit proof transformers; non-inherently short-circuit proof transformers. 7.3 Replacement: Degree of protection provided by the enclosure for portable transformers shall be code IP24 or higher. 7.5 Replacement: According to their duty-time:
45、continuous operation. 8 Marking and other information This clause of Part 1 is applicable, except as follows: 8.11 Addition: Symbol or graphical symbol Explanation or title Identification Short-circuit proof transformer for class III tungsten filament handlamps (inherently or non-inherently) IEC 604
46、17-5953 (2002-10) Addition: 8.101 For transformers intended for connection to the supply by means of a cable or cord and a plug, an instruction sheet or the equivalent shall be delivered with the transformer, drawing the attention of the user to the fact that the output circuit(s) shall be protected
47、 in accordance with national wiring rules. 9 Protection against electric shock This clause of Part 1 is applicable. BS EN 61558-2-9:2011 8 61558-2-9 IEC:2010 10 Change of input voltage setting This clause of Part 1 is applicable. 11 Output voltage and output current under load This clause of Part 1
48、is applicable, except as follows: 11.1 Replace the first paragraph by the following: When the transformer is connected to the rated supply voltage at the rated supply frequency, and loaded with an impedance resulting in the rated output at the rated output voltage, and for a.c. current, at the rated
49、 power factor, the output voltage under load shall not differ from the rated output voltage by more than 5 %. For transformers with rectifiers, the output voltage under load shall not differ from the rated output voltage by more than 10 %. 12 No-load output voltage This clause of Part 1 is applicable except as follows: Addition: The no-load output voltage is measured when the transformer is connected to the rated supply voltage at the rated supply frequency at ambient tempera
