BS EN 61558-2-19-2001 Safety of power transformers, power supply units and similar devices — Part 2-19 Particular requirements for perturbation attenuation transformers.pdf
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1、BRITISH STANDARD BS EN 61558-2-19:2001 IEC 61558-2-19: 2000 Safety of power transformers, power supply units and similar devices Part 2-19: Particular requirements for perturbation attenuation transformers The European Standard EN 61558-2-19:2001 has the status of a British Standard ICS 29.180 NO CO
2、PYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:48:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61558-2-19:2001 This British Standard, having been prepared under the direction of the Elec
3、trotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37514 5 National foreword This British Standard is the official English language version of EN 61558-2-19:2001. It is identical with IEC 61558-2-19
4、:2000. 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 the numbe
5、r 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 Attention is drawn to the fact that CEN and CENELEC
6、 Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitle
7、d “ 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 provisions of a contract. Users of British Standards are responsible for their correct application. Complia
8、nce with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related i
9、nternational 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 14, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document
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14、NNNN Page 2 EN 61558219:2001 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:48:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? ? BSI 06-2001 CONTENTS Page Clause 1Scope 4 2Normative references. 5 3Definitions 5 4General requirements. 5 5General notes on tests
15、 . 5 6Ratings 5 7Classification . 6 8Marking and other information 6 9Protection against accessibility to hazardous live parts . 7 10Change of input voltage setting 8 11Output voltage and output current under load . 8 12No-load output voltage . 8 13Short-circuit voltage . 9 14Heating 9 15Short circu
16、it and overload protection 9 16Mechanical strength. 9 17Protection against harmful ingress of dust, solid objects and moisture 9 18Insulation resistance and dielectric strength . 9 19Construction 9 20Components .12 21Internal wiring .12 22Supply connection and other external flexible cords.12 23Term
17、inals for external conductors .12 24Provision for protective earthing 12 25Screws and connections12 26Creepage distances, clearances and distances through insulation .13 27Resistance to heat, abnormal heat, fire and tracking13 28Resistance to rusting.13 29 Annexes 14 Figure 101 Protection of the out
18、put circuit in case of short circuit . 11 Table 101 Maximum disconnecting time. 11 Page 3 EN 61558219:2001 Licensed Copy: Institute Of Technology Tallaght, Institute of Technology, Mon Jun 11 16:48:32 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ? ? BSI 06-2001 SAFETY OF POWER TRANSFORMERS, POWER SUPP
19、LY UNITS AND SIMILAR DEVICES Part 2-19: Particular requirements for perturbation attenuation transformers 1 Scope Replacement: This International Standard deals with all aspects of safety such as electrical, thermal and mechanical. This part 2-19 of IEC 61558 applies to stationary or portable, singl
20、e-phase or poly-phase, air- cooled (natural or forced), independent or associated,isolating or safety isolating transformers, having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz, a rated output not exceeding 10 kVA. Perturbation attenuation transformers a
21、re intended to the supply of office machines and the like and have a mid-point lead out in the output circuit in order to attenuate mains borne disturbances. In addition, double or reinforced insulation between circuits required by the installation rules or by the appliance specification is fulfille
22、d by using this transformer. NOTE 1 Connection of an appliance via transformers of the kind referred to here does not imply that the requirements for this appliance are allowed to be less stringent. Perturbation attenuation isolating transformers: have a no-load output voltage and a rated output vol
23、tage exceeding 50 V a.c. or 120 V ripple-free d.c. and not exceeding 500 V a.c. or 708 V ripple free d.c.; the no-load output voltage and the rated output voltage may exceed these limits in order to be in accordance with the national wiring rules or special purposes, however they shall not exceed 1
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