BS EN 61558-1-2005+A1-2009 电力变压器,电源装置,电抗器及类似设备的安全.一般要求和试验.pdf

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1、BRITISH STANDARD BS EN Incorporating corrigendum - Safety of power transformers, power supplies, reactors and similar products Part 1: General requirements and tests ICS 29.180 61558-1:2005 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ? - - - - - ctober

2、 - EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM 200 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung - - 2005 CENELEC - All rights of exploitation in any form and by any means reserve

3、d worldwide for CENELEC members. Ref. No. EN 61558-1:2005 E ICS 29.180 Supersedes EN 61558-1:1997 + A1:1998 + A11:2003 English version - - - - - - - (IEC 61558-1:2005) Scurit des transformateurs, alimentations, bobines dinductance et produits analogues Partie 1: Exigences gnrales et essais (CEI 6155

4、8-1:2005) Sicherheit von Transformatoren, Netzgerten, Drosseln und dergleichen Teil 1: Allgemeine Anforderungen und Prfungen (IEC 61558-1:2005) This European Standard was approved by CENELEC on 2005-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate

5、the conditions for giving this European Standard the status 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 exi

6、sts in three official versions (English, French, German). A 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 elec

7、trotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. I

8、ncorporating corrigendum August 2006 The text of document 96/224/FDIS, future edition 2 of IEC 61558-1, prepared by IEC TC 96, Small power transformers, reactors, power supply units and similar products, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61558-1 on 2005

9、-10-01. This European Standard supersedes EN 61558-1:1997 + corrigendum April 2003 + A1:1998 + A11:2003. The changes with respect to EN 61558-1:1997 were necessitated by the introduction of new technology and implementation of requirements from equipment committees. The following dates were fixed: l

10、atest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2006-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) However, individual countries may wish to consider its

11、 application, to the extent reasonable, to transformers not mentioned in the parts 2, and to transformers designed on new principles. NOTE Annex U contains the optional tw system (marking, requirements and tests). In this standard, the following print types are used: requirements proper: in roman ty

12、pe; test specifications: in italic type; explanatory matter: in smaller roman type. In the text of the standard, the words in are defined in Clause 3. Annex ZA has been added by CENELEC. _ - The text of the International Standard IEC 61558-1:2005 was approved by CENELEC as a European Standard withou

13、t any modification. _ EN 61558-1:2005 This European Standard replaces EN 61558-1:1997 and its amendments. However, EN 61558-1:1997 remains valid until all the parts 2 that are used in conjunction with it have been withdrawn. No date of withdrawal of conflicting national standards (dow) has therefore

14、 been fixed. However, when Part 1 is used for products not covered by a part 2, EN 61558-1:1997 is not to be used after 2008-10-01. Foreword The text of document 96/314/FDIS, future amendment 1 to IEC 61558-1:2005, prepared by IEC TC 96, Transformers, reactors, power supply units and similar product

15、s for low voltage up to 1 100 V, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A1 to EN 61558-1:2005 on 2009-03-01. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical nati

16、onal standard or by endorsement (dop) 2009-12-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 2012-03-01 _ Endorsement notice The text of amendment 1:2009 to the International Standard IEC 61558-1:2005 was approved by CENELEC as an amendment t

17、o the European Standard without any modification. _ EN 61558-1:2005 - - EN 61558-1:2005 EN 61558-1:2005 CONTENTS INTRODUCTION 8 1 Scope 11 2 Normative references .13 3 4 5 6 7 Classification31 8 Marking and other information 33 9 Protection against electric shock 38 10 Change of input voltage settin

18、g 41 11 Output voltage and output current under load .42 12 No-load output voltage .42 13 Short-circuit voltage .43 14 Heating 43 15 Short circuit and overload protection.48 16 Mechanical strength .52 17 Protection against harmful ingress of dust, solid objects and moisture.55 18 Insulation resistan

19、ce, dielectric strength and leakage current59 19 Construction.63 20 Components.70 21 Internal wiring 76 22 Supply connection and other external flexible cables or cords .76 23 Terminals for external conductors.82 24 Provisions for protective earthing84 25 Screws and connections.85 26 Creepage distan

20、ces, clearances and distances through insulation 88 27 Resistance to heat, fire and tracking.97 28 Resistance to rusting101 Annex A (normative) Measurement of creepage distances and clearances .109 Annex B (normative) Testing a series of transformers 113 Annex C (normative) Creepage distances (cr),

21、clearances (cl) and distances through insulation (dti) Material group II (400 CTI 50 C. EN 61558-1:2005 p) rated minimum ambient temperature tamin ,if lower than + 10 C and if a temperature sensitive device is used. NOTE 7 It is recommended that the values of tamin are given in steps of 5 C. q) duty

22、 cycle, if any, unless the operating time is limited by the construction of the transformer or corresponds to the operating conditions specified in the relevant part 2. The marking of short-time duty cycle or intermittent duty cycle shall correspond to normal use. The operating time for transformers

23、 with short-time duty shall be expressed in seconds (s) or minutes (min); the operating time and the resting time of transformers with intermittent duty cycle shall be expressed in seconds (s) or minutes (min), separated by an oblique stroke; r) declared values of the rated maximum operating tempera

24、ture of the winding, increase in multiples of 5 C and indication of the rated life expectancy, for tw-marked transformers only s) transformers to be used with forced air cooling where the fan is not a part of the transformer shall be marked with “AF” followed by the air speed, expressed in m/s. t) I

25、n addition, the manufacturer shall be prepared to provide the purchaser with the following information (in the literature or otherwise): for stationary transformers with a rated output exceeding 1 000 VA, the short- circuit voltage expressed as a percentage of the rated supply voltage; the electrica

26、l function of the transformer. NOTE 8 If the transformer has more than one output winding, the short-circuit voltage to be marked is the lowest value for the various windings. NOTE 9 Additional markings are allowed provided they do not give rise to misunderstanding. 8.2 Transformers with protection

27、index IP00, or associated transformers, may be marked with only the name (or trade mark) of the manufacturer or responsible vendor and the type reference (or catalogue reference). Other characteristics shall then be provided in the data sheets of the transformer or in the manufacturers instruction s

28、heet NOTE 1 The name of the manufacturer or responsible vendor and the type reference may be replaced by a traceable code. This information shall enable replacement of the original transformer with an equivalent transformer. NOTE 2 Equivalent implies electrically, mechanically, dimensionally and fun

29、ctionally interchangeable. 8.3 If the transformer can be adjusted for different rated supply voltages, the adjusted voltage shall be easily and clearly discernible. 8.4 Transformers with tapped or multiple output windings shall be marked with: the rated output voltage for each tapping or winding, un

30、less the transformer is intended for special purposes involving frequent changes in output voltage; the rated output for each tapping or winding; if the rated output for all tapings or windings is the same, at least one tapping or winding shall be marked. The arrangement of the connections necessary

31、 to obtain the various output voltages shall be clearly indicated on the transformer. EN 61558-1:2005 8.5 Non-inherently short-circuit proof transformers with incorporated fuses and non- short-circuit proof transformers designed to be protected by fuses shall, in addition, be marked with the rated c

32、urrent (amperes or milliamperes) of the protecting fuse-link, followed or preceded by the symbol for the time current characteristics of the fuses in accordance with the relevant publication, if applicable. Non-inherently short-circuit proof transformers with incorporated replaceable protective devi

33、ces other than fuses, and non-short-circuit proof transformers designed to be protected with protective devices other than fuses shall, in addition, be marked with the manufacturers model or type reference of the protective device, and/or the ratings of the protective device. NOTE 1 In addition, a s

34、ymbol in accordance with Annex V can be used. NOTE 2 Non-inherently short-circuit proof transformers with non-replaceable protective devices need no additional marking regarding the protective device. The marking shall contain sufficient information to ensure proper replacement of the protective dev

35、ice. When replaceable protective devices other than fuses are used, appropriate information about their replacement shall be provided in an instruction sheet or the equivalent accompanying the transformer. 8.6 Terminals intended exclusively for the neutral conductor shall be identified by the symbol

36、 for neutral. Protective earth terminals shall be identified by the symbol for earthing. Terminals of input and output windings shall be clearly identified. If any point of a winding or a terminal is connected to the frame or core, it shall be marked with the relevant symbol. 8.7 Transformer shall b

37、e provided with markings clearly indicating the manner in which the transformer is to be connected, unless it is evident from the design of the transformer. 8.8 For transformers with type X, Y and Z attachments, the instruction sheet shall contain the following information or the equivalent: for typ

38、e X attachments having a specially prepared cord: “If the external flexible cable or cord of this transformer is damaged, it shall be replaced by a special cord or assembly available from the manufacturer or his service agent“; for type Y attachments: “If the external flexible cable or cord of this

39、transformer is damaged, it shall be replaced by the manufacturer or his service agent or a similar qualified person in order to avoid a hazard“; for type Z attachments: “The external flexible cable or cord of this transformer cannot be replaced; if the cord is damaged, the transformer shall be scrap

40、ped“. 8.9 Transformers for indoor use only shall be marked with the relevant symbol. EN 61558-1:2005 8.10 Class II transformers shall be marked with the graphical symbol IEC 60417-5172 (DB:2002-10) placed adjacent to the supply information (e.g. on the rating plate), such that it is obvious the symb

41、ol is part of the technical information and can in no way be confused with the manufacturers name or any other identification (see 7.2.3 of IEC 61140). Class II transformer with parts to be mounted, shall be delivered with all parts which make them class II after mounting according to the mounting i

42、nstruction of the manufacturer and shall be marked with the class II symbol. Moreover, if the transformer can be mounted without the covers (e.g. on a distribution box), the marking for class II shall be placed on a part which, effectively, provides the class II characteristics (e.g., on a cover for

43、 terminal to connect to the supply). 8.11 When symbols are used on equipment or in instructions, they shall be as follows: Symbol or graphical symbol Explanation or title Identification V* Volts A* Amperes VA or (VAR)* Volt amperes (or volt-amperes reactive for reactors) W* Watts Hz* Hertz PRI Input SEC Output Direct current IEC 60417-5031 (DB:2002-10 N Neutral Alternating current IEC 60417-5032 (DB:2002-10 Three-phase alternating current IEC 60417-5032-1 (DB:2002- 10 Three-phase alternating current with neutral conductor IEC 60417-5032-2 (DB:2002- 10 cos Power factor Class II equipment IEC