BS EN 61557-8-2007 低于1000V交流和1500V直流低压配电系统的电气安全.保护措施的测试、测量或监视设备.第8部分IT系统绝缘监视.pdf
《BS EN 61557-8-2007 低于1000V交流和1500V直流低压配电系统的电气安全.保护措施的测试、测量或监视设备.第8部分IT系统绝缘监视.pdf》由会员分享,可在线阅读,更多相关《BS EN 61557-8-2007 低于1000V交流和1500V直流低压配电系统的电气安全.保护措施的测试、测量或监视设备.第8部分IT系统绝缘监视.pdf(26页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 61557-8:2007 Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 8: Insulation monitoring devices for IT systems The European Standard EN 61557-8:2007 has the statu
2、s of a British Standard ICS 17.220.20; 29.080.01; 29.240.01 BS EN 61557-8:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2007 BSI 2007 ISBN 978 0 580 54797 3 National foreword This British Standard is the UK implementation
3、of EN 61557-8:2007, incorporating corrigendum May 2007. It is identical to IEC 61557-8:2007. It supersedes BS EN 61557-8:1997, which will be withdrawn on 1 May 2010. The UK participation in its preparation was entrusted to Technical Committee PEL/85, Measuring equipment for electrical and electromag
4、netic quantities. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot c
5、onfer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD EN 61557-8 NORME EUROPENNE EUROPISCHE NORM July 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee
6、fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61557-8:2007 E ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-8:1997 English ver
7、sion Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems (IEC 61557-8:2007 + corrigendum May 2007) Scurit lectrique dans les rseaux de
8、distribution basse tension de 1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesures de protection - Partie 8: Contrleurs disolement pour rseaux IT (CEI 61557-8:2007 + corrigendum May 2007) Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC
9、1 500 V - Gerte zum Prfen, Messen oder berwachen von Schutzmanahmen - Teil 8: Isolationsberwachungsgerte fr IT-Systeme (IEC 61557-8:2007 + corrigendum May 2007) This European Standard was approved by CENELEC on 2007-04-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
10、 which stipulate 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 Euro
11、pean Standard exists 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
12、the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spai
13、n, Sweden, Switzerland and the United Kingdom. EN 61557-8:2007 2 Foreword The text of document 85/296/FDIS, future edition 2 of IEC 61557-8, prepared by IEC TC 85, Measuring equipment for electrical and electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CE
14、NELEC as EN 61557-8 on 2007-04-11. This European Standard supersedes EN 61557-8:1997. The following changes were made with respect to EN 61557-8:1997: definitions complemented; revision of some requirements; addition of information on operating instructions; sections “type tests” and “routine tests”
15、 complemented; modification of Table 1; addition of Annexes A and B. This standard is to be used in conjunction with EN 61557-1. 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
16、) 2008-02-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-05-01 Annexes ZA and ZB have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61557-8:2007, including the corrigendum May 2007, was approved by CENEL
17、EC as a European Standard without any modification. _ 3 EN 61557-8:2007 CONTENTS 1 Scope 4 2 Normative references .4 3 Terms and definitions .5 4 Requirements.7 5 Marking and operating instructions9 5.1 Marking.9 5.2 Operating instructions10 6 Tests10 6.1 Type tests .10 6.2 Routine tests .12 Annex A
18、 (normative) Medical insulation monitoring devices (IMDs) .14 Annex B (informative) Monitoring of overload and high temperature 18 Annex ZA (normative) Normative references to international publications with their corresponding European publications21 Annex ZB (informative) A-deviations 23 Bibliogra
19、phy .20 Table 1 Requirements applicable to insulation monitoring devices.8 Table A.1 Additional requirements applicable to medical insulation monitoring devices (IMDs) .16 Table A.2 Emission test for medical insulation monitoring devices (IMDs) .17 EN 61557-8:2007 4 ELECTRICAL SAFETY IN LOW VOLTAGE
20、DISTRIBUTION SYSTEMS UP TO 1 000 V a.c. AND 1 500 V d.c. EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES Part 8: Insulation monitoring devices for IT systems 1 Scope This part of IEC 61557 specifies the requirements for insulation monitoring devices (IMD) which permanently moni
21、tor the insulation resistance to earth of unearthed IT a.c. systems, for IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as of unearthed IT d.c. systems with voltages up to 1 500 V d.c. independent from the method of measuring. NOTE 1IT s
22、ystems are described in IEC 60364-4-41 amongst other literature. Additional data for a selection of devices in other standards should be noted. NOTE 2Various standards specify the use of insulation monitoring devices in IT systems. In such cases, the objective of the equipment is to signal a drop in
23、 insulation resistance below a minimum limit. NOTE 3Insulation monitoring devices according to this part of IEC 61557 may also be used for de-energized electrical systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refe
24、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60364-7-710:2002, Electrical installations of buildings Part 7-710: Requirements for special installations or locations Medical locations IEC 60664-1,
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