BS EN 61558-2-12-2001 Safety of power transformers, power supply units and similar devices — Part 2-12 Particular requirements for constant voltage transformers1.pdf
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1、BRITISH STANDARD BS EN 61558-2-12:2001 Safety of power transformers, power supply units and similar devices Part 2-12: Particular requirements for constant voltage transformers The European Standard EN 61558-2-12:2001 has the status of a British Standard ICS 29.180; 13.260 NO COPYING WITHOUT BSI PER
2、MISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:26 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61558-2-12:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector P
3、olicy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 2 November 2001 BSI 2 November 2001 ISBN 0 580 38632 5 National foreword This British Standard is the official English language version of EN 61558-2-12:2001. It is identical with IEC 61
4、558-2-12:2001. The UK participation in its preparation was entrusted to Technical Committee PEL/96, Small transformers, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have t
5、he number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement these
6、 international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary p
7、rovisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the in
8、terpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and
9、a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:26 GMT+00:00 2007, Uncontrolled Copy, (c)
10、BSI EUROPEAN STANDARDEN 61558-2-12 NORME EUROPENNE EUROPISCHE NORMOctober 2001 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 2
11、001 CENELEC -All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61558-2-12:2001 E ICS 29.180 English version Safety of power transformers, power supply units and similar devices Part 2-12: Particular requirements for constant voltage transform
12、ers (IEC 61558-2-12:2001) Scurit des transformateurs, blocs dalimentation et dispositifs analogues Partie 2-12: Rgles particulires pour les transformateurs tension constante (CEI 61558-2-12:2001) Sicherheit von Transformatoren, Netzgerten und dergleichen Teil 2-12: Besondere Anforderungen an magneti
13、sche Spannungskonstanthalter (IEC 61558-2-12:2001) This European Standard was approved by CENELEC on 2001-09-01. 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 an
14、y 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 language mad
15、e 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, German
16、y, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:51:26 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of document
17、96/168/FDIS, future edition 1 of IEC 61558-2-12, prepared by IEC TC 96, Small power transformers, reactors and power supply units: Safety requirements, was submitted to the IEC- CENELEC parallel vote and was approved by CENELEC as EN 61558-2-12 on 2001-09-01. This part 2-12 is to be used in conjunct
18、ion with EN 61558-1:1997. This part 2-12 supplements or modifies the corresponding clauses of EN 61558-1. When a particular subclause of part 1 is not mentioned in this part 2-12, that subclause applies as far as is reasonable. Where this part 2-12 states “addition“, “modification“ or “replacement“,
19、 the relevant text of part 1 is to be adapted accordingly. In this standard, the following print types are used: - requirements: in roman type; - test specifications: in italic type; - explanatory matter: in smaller roman type. The words in bold in the text of the standard are defined in clause 3. S
20、ubclauses which are additional to those in part 1 are numbered starting from 101. The 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) 2002-06-01 latest date by which the national s
21、tandards conflicting with the EN have to be withdrawn(dow) 2004-09-01 _ Endorsement notice The text of the International Standard IEC 61558-2-12:2001 was approved by CENELEC as a European Standard without any modification. _ Page 2 EN 61558212:2001 BSI 2 November 2001 Licensed Copy: Institute Of Tec
22、hnology Tallaght, Institute of Technology, Mon Jun 11 16:51:26 GMT+00:00 2007, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m 61558-2-12 IEC:2001 3 CONTENTS 1 Scope .4 2 Normative references. 5 3 Definitions 5 4 General requirements. 6 5 General notes on tests . 6 6 Ratings 6 7 Classification
23、. 7 8 Marking and other information 7 9 Protection against accessibility to hazardous live parts . 8 10 Change of input voltage setting 8 11 Output voltage and output current under load . 11 12 No-load output voltage . 11 13 Short-circuit voltage . 10 14 Heating 10 15 Short-circuit and overload prot
24、ection 10 16 Mechanical strength . 12 17 Protection against harmful ingress of dust, solid objects and moisture 12 18 Insulation resistance and dielectric strength 12 19 Construction. 12 20 Components. 16 21 Internal wiring 16 22 Supply connection and other external flexible cables or cords. 16 23 T
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