AS NZS 61558 2 9-2003 Safety of power transformers power supply units and similar devices - Particular requirements for transformers for class III handlamps for tungsten filament l.pdf

1、 AS/NZS 61558.2.9 AS/NZS 61558.2.9:2003 (IEC 61558-2-9:2002, MOD) Australian/New Zealand Standard Safety of power transformers, power supply units and similar products - Part 2.9: Particular requirements for transformers for class III handlamps for tungsten filament lamps (IEC 61558-2-9:2002, MOD) A

2、ccessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 2007This standard was issued in draft form for comment as DR 02928 AS/NZS 61558.2.9:2003 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee EL/2 - Safety of household and similar electrical appli

3、ances and small power transformers. It was approved on behalf of the Council of Standards Australia on 15 April 2003 and by the Council of Standards New Zealand on 8 May 2003. It was published on 30 May 2003. The following interests are represented on Committee EL/2 Association of Certification Bodi

4、es Australian Chamber of Commerce and Industry Australian Electrical and Electronic Manufacturers Association Canterbury Manufacturers Association New Zealand Consumer Electronic Suppliers Association, Australia Electrical regulatory authorities, Australia Electrical test laboratories Electrical con

5、sultants Electricity Supply Association of Australia Institution of Engineers Australia Metal Trades Industries Association of Australia Ministry of Consumer Affairs, New Zealand Keeping Standards up-to-date Standards are living documents, which reflect progress in science, technology and systems. T

6、o maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which

7、 may have been published since the Standard was purchased. Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Australia web site at .au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line c

8、atalogue. Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For informa

9、tion about these services, users should contact their respective national Standards organization. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comment to the Ch

10、ief Executive of either Standards Australia International or Standards New Zealand at the address shown on the back cover. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 2007AS/NZS 61558.2.9:2003 (IEC 61558-2-9:2002, MOD) Australian/New Zealand Standard Safety of power trans

11、formers, power supply units and similar products - Part 2.9: Particular requirements for transformers for class III handlamps for tungsten filament lamps (IEC 61558-2-9:2002, MOD) Originated, in part, in Australia as AS C126-1939 Second edition C126 1958 Revised and redesignated AS 3126 1981 (withdr

12、awn 1989) Originated, in part, in Australia as AS C167-1962 Revised and redesignated AS 3167 1981 (withdrawn 1987) AS 3126 1981 and AS 3167 1981 were revised and redesignated AS 3108.1-1984, AS 3108.2-1984 and AS 3108.3 1984 Revised, amalgamated and redesignated AS 3108 1990 First published in New Z

13、ealand as NZS/AS 3108:1990 Jointly revised and redesignated AS/NZS 3108:1994 Jointly revised and redesignated, in part, as AS/NZS 61558.2.9:2003 COPYRIGHT Standards Australia/ Standards New Zealand All rights are reserved. No part of this work may be reproduced or copied in any form or by any means,

14、 electronic or mechanical, including photocopying, without the written permission of the publisher Published jointly by Standards Australia International Ltd GPO Box 5420,Sydney, NSW 2001 Australia, and Standards New Zealand Private Bag 2439,Wellington 6020, New Zealand ISBN 0 7337 5380 9Accessed by

15、 ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 20072 COPYRIGHT CONTENTS FOREWORD.3 1 Scope 5 2 Normative references .6 3 Definitions6 4 General requirements .6 5 General notes on tests6 6 Ratings 6 7 Classification6 8 Marking and other information.7 9 Protection against accessibility o

16、f hazardous live parts7 10 Change of input voltage setting.8 11 Output voltage and output current under load8 12 No-load output voltage8 13 Short-circuit voltage9 14 Heating 9 15 Short-circuit and overload protection.9 16 Mechanical strength .9 17 Protection against harmful ingress of dust, solid ob

17、jects and moisture .9 18 Insulation resistance and dielectric strength 9 19 Construction.9 20 Components.11 21 Internal wiring.11 22 Supply connection and other external flexible cables or cords11 23 Terminals for external conductors .12 24 Provision for protective earthing12 25 Screws and connectio

18、ns .12 26 Creepage distances, clearances and distances through insulation .12 27 Resistance to heat, abnormal heat, fire, and tracking 12 28 Resistance to rusting 12 Annexes .13 Annex C Creepage distances and clearances Material group II .13 Annex D Creepage distances and clearances Material group I

19、 13 Annex L Routine tests (production tests) .13 Annex ZZ (informative) Variations to IEC 61558-2-9:2002 for application in Australia and New Zealand .14 Table 101 Output voltages ratio for transformers for class III handlamps for tungsten filament lamps 9 Accessed by ISONET - CHINA STATE BUREAU OF

20、TECHNICAL SUPERVIS on 17 May 20073 COPYRIGHT STANDARDS AUSTRALIA / STANDARDS NEW ZEALAND _ SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR PRODUCTS Part 2.9: Particular requirements for transformers for class III handlamps for tungsten filament lamps FOREWORD This standard was prepared

21、by the Joint Standards Australia/Standards New Zealand Committee EL-002- Safety of Household and Similar Electrical Appliances and Small Power Transformers, to supersede AS/NZS 3108, Chapter 3, Section 4, two years from publication. The objective of this Standard is to provide manufacturers, designe

22、rs, regulatory authorities, testing laboratories and similar organizations with safety requirements for the design, manufacture and testing of safety isolating transformers for general use which can form the basis for approval by regulatory authorities This Standard forms the first edition of AS/NZS

23、 61558.2.9 Safety of power transformers, power supply units and similar products - Part 2.9: Particular requirements for transformers for class III handlamps for tungsten filament lamps. This Standard is an adoption with national modifications and contains the full text of the first edition of IEC 6

24、1558-2-9:2002, Safety of power transformers, power supply units and similar products - Part 2-9: Particular requirements for transformers for class III handlamps for tungsten filament lamps and has been varied as indicated to take account of Australian and New Zealand conditions. It is to be used in

25、 conjunction with the latest edition of AS/NZS 61558.1 and its amendments. It was established on the basis of the first edition (2001) of that standard. This part 2 supplements or modifies the corresponding clauses of AS/NZS 61558.1 so as to convert it into the Australian/New Zealand Standard: Safet

26、y requirements for transformers for class III handlamps for tungsten filament lamps. Where a particular subclause of part 1 is not mentioned in this part 2, that subclause applies as far as is reasonable. Where this Standard states “addition“, “modification“ or “replacement“, the relevant text in pa

27、rt 1 is to be adapted accordingly. NOTE 1 Subclauses, notes, tables and figures which are additional to those in part 1 are numbered starting from 101. Annexes, which are additional to those in part 1 are lettered AA, BB, etc. Annex ZZ is for information only. NOTE 2 In this Standard the following p

28、rint types are used: requirements: in arial type; test specifications: in italic type; notes: in small arial type; Words in bold in the text are defined in clause 3. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 20074 COPYRIGHT The numbering of clauses, subclauses, notes, t

29、ables, figures and annexes follows that of IEC 61558-2-9:2002. To allow for the introduction of additional material by the IEC, the numbers 101 to 200 have been reserved. To allow for additional material to be introduced by Australia and New Zealand, the numbers 201 to 300 are used to number further

30、 clauses, subclauses, notes, tables and figures in part 1. The numbers 301 to 400 are used to number further clauses, subclauses, notes, tables and figures in this part 2. Additional annexes are lettered ZA, ZB and so on. This scheme has been introduced to reduce the likelihood of the IEC and Austra

31、lia and New Zealand using the same identifier for different purposes. The use of the word VOID indicates that the IEC text is not used in Australia or New Zealand. The use of this word also avoids the need to renumber, clauses, notes, tables and figure if an earlier clause, note, table or figure is

32、not used. As this Standard is reproduced from an International Standard, the following applies: (a) Its number does not appear on each page of text and its identity is shown on the cover and title page only. (b) In the source text “this International Standard“ should read “this Australian/New Zealan

33、d Standard“. (c) A full point substitutes for a comma when referring to a decimal marker. Variations to IEC 61558-2-9:2002 are indicated at the appropriate places throughout this standard. Strikethrough (example) identifies IEC tables, figures and passages of text which, for the purposes of this Aus

34、tralian/New Zealand standard are deleted. Where Australian/New Zealand tables, figures or passages of text are added, each is set in its proper place and identified by shading (example). Added figures are not themselves shaded, but are identified by a shaded border. Variations made to IEC 61558-2-9:

35、2002 form the Australian variations for the purposes of the IECEE scheme for recognition of testing to standards for safety of electrical equipment (the CB scheme). These variations have been incorporated in the body of the standard. They are listed in Annex ZZ for easy reference. Accessed by ISONET

36、 - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 20075 COPYRIGHT AUSTRALIA/NEW ZEALAND STANDARD _ SAFETY OF POWER TRANSFORMERS, POWER SUPPLY UNITS AND SIMILAR PRODUCTS Part 2.9: Particular requirements for transformers for class III handlamps for tungsten filament lamps 1 Scope Replacement: Thi

37、s 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, having

38、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 lamps have a no-load output voltage and a rated output voltage not exceeding 50 V a.c. or 120 V ripple-free d.

39、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 winding

40、s 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

41、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 a

42、lso 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 cir

43、cuits and their components intended to be connected to the input and output terminals or socket-outlets of the transformer. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 20076 COPYRIGHT 2 Normative references This clause of Part 1 is applicable. 3 Definitions This clause of

44、 Part 1 is applicable except as 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 4 General requirements This clause of Part 1 is applicable

45、. 5 General notes on tests This clause of Part 1 is applicable. 6 Ratings 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. 6.102 The rated output shall not exceed 10 kVA. 6.103 The rated frequency sha

46、ll 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 protection aga

47、inst abnormal use: inherently short-circuit proof transformers; non-inherently short-circuit proof transformers. Accessed by ISONET - CHINA STATE BUREAU OF TECHNICAL SUPERVIS on 17 May 20077 COPYRIGHT 7.3 Replacement: Portable transformers for class III handlamps shall be IP24 or higher. 7.4 Replace

48、ment: According to their mobility: stationary transformers; portable transformers. 7.5 Replacement: According to their duty-time: continuous operation. 8 Marking and other information This clause of Part 1 is applicable except as follows: 8.11 Addition: Symbol Explanation Short-circuit proof transfo

49、rmer for class III handlamps for tungsten filament lamps (inherently or non-inherently) 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 installed and protected in accordance with national wiring rules. 8.101 For transformers intended for permanent connection to the fi