BS EN 61557-2-2007 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.pdf
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1、BRITISH STANDARD BS EN 61557-2:2007 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 2: Insulation resistance The European Standard EN 61557-2:2007 has the status of a British Standard
2、 ICS 17.220.20; 29.080.01; 29.240.01 ? Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61557-2:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007 ISBN 978 0 580 50861 5
3、 National foreword This British Standard was published by BSI. It is the UK implementation of EN 61557-2:2007. It is identical with IEC 61557-2:2007. It supersedes BS EN 61557-2:1997, which will be withdrawn on 1 March 2010. The UK participation in its preparation was entrusted to Technical Committe
4、e PEL/85, Measuring equipment for electrical and electromagnetic 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 corre
5、ct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61557-2 NORME EUROPENNE EUROPIS
6、CHE NORM March 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rights of exploitation in any form and by
7、 any means reserved worldwide for CENELEC members. Ref. No. EN 61557-2:2007 E ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-2:1997 English version 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 p
8、rotective measures - Part 2: Insulation resistance (IEC 61557-2:2007) Scurit lectrique dans les rseaux de 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 2: Rsistance disolement (CEI 61557-2:2007) El
9、ektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Messen oder berwachen von Schutzmanahmen - Teil 2: Isolationswiderstand (IEC 61557-2:2007) This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CEN
10、ELEC Internal Regulations 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
11、CENELEC member. This European 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 versi
12、ons. CENELEC members are 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,
13、 Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of document 85/291/FDIS, future edition 2 of IEC 61557-2, prepared by IEC TC 85, Measuring equipment for electrical an
14、d electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61557-2 on 2007-03-01. This European Standard supersedes EN 61557-2:1997. The following changes were made with respect to EN 61557-2:1997: definitions complemented; revision of some require
15、ments; addition of a warning pictogram; complete revision of the subclause on overload tests. 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 standa
16、rd or by endorsement (dop) 2007-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-03-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61557-2:2007 was approved by CENELEC as a European Stand
17、ard without any modification. _ EN 61557-2:2007 2 Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSI w w w . b z f x w . c o m CONTENTS 1 Scope.4 2 Normative references4 3 Terms and definitions .4 4 Requirements .4 5 Marking and operating instructions6 5.1 Ma
18、rking .6 5.2 Operating instructions6 6 Tests6 Annex ZA (normative) Normative references to international publications with their corresponding European publications.9 Table 1 Calculation of operating uncertainty .5 EN 61557-2:2007 3 Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Un
19、controlled Copy, (c) BSI w w w . b z f x w . c o m 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 2: Insulation resistance 1 Scope This part of IEC 61557 specifies the requirements a
20、pplicable to equipment for measuring the insulation resistance of equipment and installations in the de-energized state. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated
21、 references, the latest edition of the referenced document (including any amendments) applies. IEC 61010-1:2001, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirements IEC 61557-1, Electrical safety in low voltage distribution systems u
22、p to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 1: General requirements 3 Terms and definitions For the purposes of this document, the definitions given in IEC 61557-1 and the following definitions apply. 3.1 rated output voltage UN volta
23、ge output across the measuring equipment terminals when this equipment is loaded with the rated current 4 Requirements The following requirements as well as those given in IEC 61557-1 shall apply. 4.1 The output voltage shall be a d.c. voltage; the indication at the rated output voltage across a res
24、istor of a value of UN (1 000 /V) shall not differ by more than 10 % relative to the indicated value, as a result of possibly present a.c. voltage components in the output voltage, when a capacitor of 2 F is connected in parallel with the insulation resistance to be measured. 4.2 The open-circuit vo
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