BS EN 61558-2-10-2014 Safety of transformers reactors power supply units and combinations thereof Particular requirements and tests for separating transformers with high insulationo.pdf

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1、BSI Standards PublicationSafety of transformers, reactors, power supply units and combinations thereofPart 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 VBS EN 61558-2-10:2014National fo

2、rewordThis British Standard is the UK implementation of EN 61558-2-10:2014. It isidentical to IEC 61558-2-10:2014. It supersedes BS 7452:1991 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/96, Small transformers.A list of organizations represented

3、on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 74564 5

4、ICS 29.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 6155

5、8-2-10:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61558-2-10 May 2014 ICS 29.180 English Version Safety of transformers, reactors, power supply units and combinations thereof - Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separ

6、ating transformers with output voltages exceeding 1 000 V (IEC 61558-2-10:2014) Scurit des transformateurs, bobines dinductance, blocs dalimentation et des combinaisons de ces lments - Partie 2-10: Rgles particulires et essais pour les transformateurs disolement enroulements spars niveau disolement

7、lev et pour les transformateurs disolement enroulements spars tensions secondaires suprieures 1 000 V (CEI 61558-2-10:2014) Sicherheit von Transformatoren, Netzgerten, Drosseln und dergleichen - Teil 2-10: Besondere Anforderungen und Prfungen an Netztransformatoren mit hohem Isolationspegel und Netz

8、transformatoren mit Ausgangsspannungen ber 1 000 V (IEC 61558-2-10:2014) This European Standard was approved by CENELEC on 2014-05-15. 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 nation

9、al standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A v

10、ersion in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgar

11、ia, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerla

12、nd, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any

13、form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 61558-2-10:2014 E BS EN 61558-2-10:2014EN 61558-2-10:2014 - 2 - Foreword The text of document 96/407/FDIS, future IEC 61558-2-10, prepared by IEC/TC 96, “Transformers, reactors, power supply units and combinations thereof“ was

14、 submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61558-2-10:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-02-15 latest date by which

15、 the national standards conflicting with the document have to be withdrawn (dow) 2017-05-15 This Part 2-10 is intended to be used in conjunction with the latest edition of EN 61558-1 and its amendments. This Part 2-10 supplements or modifies the corresponding clauses in EN 61558-1, so as to convert

16、that publication into the IEC standard: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V. When a particular subclause of Part 1 is not mentioned in this part, that subclause applies as far as i

17、s reasonable. Where this part states “addition“, “modification“ or “replacement“, the relevant text of Part 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

18、 type. In the text of this part the words in bold are defined in Clause 3. Subclauses, notes, figures and tables additional to those in Part 1 are numbered starting from 101; supplementary annexes are entitled AA, BB, etc. Attention is drawn to the possibility that some of the elements of this docum

19、ent may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61558-2-10:2014 was approved by CENELEC as a European Standard without any modification. In the Bibli

20、ography of EN 61558-1:2005, the following note has to be added for the standard indicated: Addition: IEC 60076-11 NOTE Harmonised as EN 60076-11 (not modified). IEC 61050 NOTE Harmonised as EN 61050 (modified). IEC 61347-2-10:2000 NOTE Harmonised as EN 61347-2-10:2001 (not modified). BS EN 61558-2-1

21、0:2014- 3 - EN 61558-2-10:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated referen

22、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date informa

23、tion on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Annex ZA of EN 61558-1:2005 applies, except as follows: Publication Year Title EN/HD Year IEC 61558-1 2005 Safety of power transformers, power supplies, reactors and similar products - Part 1

24、: General requirements and tests EN 61558-1 2005 +EN 61558-1:2005/corrigendum Aug. 2006 2006 IEC 61558-2-16 - Safety of transformers, reactors, power supply units and similar products for voltages up to 1 100 V - Part 2-16: Particular requirements and tests for switch mode power supply units and tra

25、nsformers for switch mode power supply units EN 61558-2-16 - BS EN 61558-2-10:2014 2 IEC 61558-2-10:2014 IEC 2014 CONTENTS 1 Scope 5 2 Normative references . 6 3 Terms and definitions 6 4 General requirements 7 5 General notes on tests . 7 6 Ratings 7 7 Classification . 8 8 Marking and other informa

26、tion 8 9 Protection against electric shock 10 10 Change of input voltage setting 10 11 Output voltage and output current under load . 10 12 No-load output voltage . 10 13 Short-circuit voltage . 11 14 Heating 11 15 Short-circuit and overload protection 11 16 Mechanical strength . 11 17 Protection ag

27、ainst harmful ingress of dust, solid objects and moisture 11 18 Insulation resistance, dielectric strength and leakage current . 11 19 Construction 12 20 Components 13 21 Internal wiring 13 22 Supply connection and other external flexible cable or cords 13 23 Terminals for external conductors 13 24

28、Provisions for protective earthing . 13 25 Screws and connections 13 26 Creepage distances, clearances and distances through insulation 13 27 Resistance to heat, fire and tracking 15 28 Resistance to rusting . 15 Annexes 15 Table 101 Output voltage difference . 11 Table 102 Table of dielectric stren

29、gth test voltages . 12 Table 103 Clearances distances for homogenous fields and inhomogeneous fields 14 Table 104 Creepage distances for material group III a, II and I (CTI 175) for basic or supplementary insulation . 15 BS EN 61558-2-10:2014IEC 61558-2-10:2014 IEC 2014 5 SAFETY OF TRANSFORMERS, REA

30、CTORS, POWER SUPPLY UNITS AND COMBINATIONS THEREOF Part 2-10: Particular requirements and tests for separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V 1 Scope Replacement: This part of IEC 61558 deals with the safety of separating tr

31、ansformers with high insulation level and separating transformers with output voltages exceeding 1 000 V. Transformers incorporating electronic circuits are also covered by this standard. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here onward,

32、 the term transformer covers separating transformers with high insulation level and separating transformers with output voltages exceeding 1 000 V a.c or 1 500 V d.c . This Part 2-10 is applicable to stationary or portable, single-phase or polyphase, air-cooled (natural or forced) independent or ass

33、ociated dry-type transformers. The windings may be encapsulated or non-encapsulated. This standard is applicable to transformers and power supply (linear) with internal operational frequencies not exceeding 500 Hz. This standard used in combination with Part 2-16 for switch mode power supply units (

34、SMPS) is also applicable to power supplies with internal operational frequencies higher than 500 Hz. Where the two requirements are in conflict 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 operating frequency

35、do not exceed 500 Hz. The rated output does not exceed: 25 kVA for single-phase transformers; 40 kVA for polyphase transformers. This Part 2-10 is applicable to transformers without limitation of the rated output subject to an agreement between the purchaser and the manufacturer. Where applicable th

36、e no-load output voltage or the rated output voltage: does not exceed 1 000 V a.c. or 1 500 V d.c. for separating transformers with high insulation level; does exceed 1 000 V a. c or 1 500 V d.c. and does not exceed 15 000 V a.c. or 15 000 V d.c. for separating transformer with output voltage exceed

37、 1 000 V. This Part 2-10 is not applicable to: transformers covered by IEC 60076-11; BS EN 61558-2-10:2014 6 IEC 61558-2-10:2014 IEC 2014 neon transformers covered by IEC 61050 and power supplies and converters for use with or in products according to IEC 61347-2-10. This Part 2-10 is not applicable

38、 to external circuits and their components intended to be connected to the input terminals and output terminals of the transformers. Transformers covered by this Part 2-10 are used only in applications where double or reinforced insulation between circuits is not required by the installation rules o

39、r by the end product standard. NOTE 2 Normally, the transformers are intended to be used with equipment to provide voltages different from the supply voltage for the functional requirements of the equipment. The protection against electric shock can be provided (or completed) by other features of th

40、e equipment, such as the body. Parts of output circuits can be connected to the input circuits or to protective earth. This Part 2-10 is applicable to transformers associated with specific equipment, to the extent decided upon by the relevant IEC technical committees. NOTE 3 Attention is drawn to th

41、e following: for transformers intended to be used in vehicles, on board ships, and aircraft, additional requirements (from other applicable standards, national rules, etc.) can be necessary; measures to protect the enclosure and the components inside the enclosure against external influences such as

42、 fungus, vermin, termites, solar-radiation, and icing can also be considered; the different conditions for transportation, storage, and operation of the can also be considered; additional requirements in accordance with other appropriate standards and national rules can be applicable to transformers

43、 intended for use in special environments, such as tropical environment. NOTE 4 Future technological development of transformers can necessitate a need to increase the upper limit of the frequencies, until then this Part 2-10 can be used as a guidance document. 2 Normative references This clause of

44、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 Amendment 1:2009 IEC 61558-2-16, Safety of transformers, reactors, power supply units and similar products for supply

45、 voltages up to 1 100 V Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units 3 Terms and definitions This clause of Part 1 is applicable except as follows: The third paragraph is not applicable. 3.1 Transformers Addition:

46、 BS EN 61558-2-10:2014IEC 61558-2-10:2014 IEC 2014 7 3.1.101 separating transformer with high insulation level a separating transformer where the output voltage does not exceed 1 000 V a.c or 1 500 V d.c and does exceed 50 V a.c or d.c for independent transformer Note 1 to entry: The output winding(

47、s) are isolated from both, input winding(s) and body for a working voltage exceeding 1 000 V. a.c or 1 500 V d.c but not exceeding 15 000 V a.c or 15 000 V d.c. 3.1.102 separating transformer with output voltages exceeding 1 000 V a separating transformer the output circuits of which are designed to

48、 give voltages exceeding 1 000 V a.c or 1 500 V d.c and not exceeding 15 000 V a.c or 15 000 V d.c 4 General requirements This clause of Part 1 is applicable. 5 General notes on tests This clause of Part 1 is applicable. 6 Ratings This clause of Part 1 is not applicable. Replacement: 6.101 The rated

49、 output voltage is limited as follows: For separating transformers with high insulation level: the no-load output voltage or the rated output voltage shall not exceed 1 000 V a.c. or 1 500 V d.c.; for independent transformers the rated output voltage shall exceed 50 V a.c. or d.c. and this output voltage applies even when output windings, not intended for interconnection, are connected in series. For separating transformers with no load output voltages exceeding 1 000