BS-EN-61557-4-2007.pdf
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1、BRITISH STANDARD BS EN 61557-4:2007 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 4: Resistance of earth connection and equipotential bonding The European Standard EN 61557-4:2007 h
2、as the status of a British Standard ICS 17.220.20; 29.080.01; 29.240.01 ? Licensed Copy: London South Bank University, London South Bank University, Sun Jun 17 07:00:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61557-4:2007 This British Standard was published under the authority of the Standa
3、rds Policy and Strategy Committee on 29 June 2007 BSI 2007 ISBN 978 0 580 50859 2 National foreword This British Standard was published by BSI. It is the UK implementation of EN 61557-4:2007. It is identical with IEC 61557-4:2007. It supersedes BS EN 61557-4:1997, which will be withdrawn on 1 March
4、2010. The UK participation in its preparation was entrusted to Technical Committee 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 includ
5、e all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank
6、University, Sun Jun 17 07:00:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61557-4 NORME EUROPENNE EUROPISCHE NORM March 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische
7、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 61557-4:2007 E ICS 17.220.20; 29.080.01; 29.240.01 Supersedes EN 61557-4:1997 English version Electrical safet
8、y 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 4: Resistance of earth connection and equipotential bonding (IEC 61557-4:2007) Scurit lectrique dans les rseaux de distribution basse tension de 1
9、000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesures de protection - Partie 4: Rsistance de conducteurs de terre et dquipotentialit (CEI 61557-4:2007) Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Messen oder
10、berwachen von Schutzmanahmen - Teil 4: Widerstand von Erdungsleitern, Schutzleitern und Potentialausgleichsleitern (IEC 61557-4:2007) This European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
11、ions 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 exists in thr
12、ee 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 electrotechnic
13、al 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, Spain, Sweden, Switzerland and
14、the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Sun Jun 17 07:00:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword The text of document 85/293/FDIS, future edition 2 of IEC 61557-4, prepared by IEC TC 85, Measuring equipment for electrical and elec
15、tromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61557-4 on 2007-03-01. This European Standard supersedes EN 61557-4:1997. This standard is to be used in conjunction with EN 61557-1. The following dates were fixed: latest date by which the EN h
16、as to be implemented at national level by publication of an identical national standard 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 th
17、e International Standard IEC 61557-4:2007 was approved by CENELEC as a European Standard without any modification. _ EN 61557-4:2007 2 Licensed Copy: London South Bank University, London South Bank University, Sun Jun 17 07:00:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope.4 2 Normat
18、ive references4 3 Terms and definitions .4 4 Requirements .4 5 Marking and operating instructions6 5.1 Marking .6 5.2 Operating instructions6 6 Tests6 Table 1 Calculation of operating uncertainty .5 Annex ZA (normative) Normative references to international publications with their corresponding Euro
19、pean publications 8 EN 61557-4:2007 3 Licensed Copy: London South Bank University, London South Bank University, Sun Jun 17 07:00:59 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1 000 V a.c. AND 1 500 V d.c. EQUIPMENT FOR TESTING, MEASURING O
20、R MONITORING OF PROTECTIVE MEASURES Part 4: Resistance of earth connection and equipotential bonding 1 Scope This part of IEC 61557 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bondin
21、g, including their connections and terminals, with an indication of the measured value or indication of limits. 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 referenc
22、es, the latest edition of the referenced document (including any amendments) applies. IEC 61557-1, 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 1: General requirements 3 Terms and
23、definitions For the purposes of this document, the definitions given in IEC 61557-1 apply. 4 Requirements The following requirements as well as those given in IEC 61557-1 shall apply. 4.1 The measuring voltage may be a d.c. or an a.c. voltage. The open-circuit voltage shall not exceed 24 V and shall
24、 not be less than 4 V. 4.2 The measuring current within the minimum measuring range according to 4.4 shall not be less than 0,2 A. 4.3 Resistance measuring equipment using a d.c. voltage as a measuring voltage shall be provided either with a reversing switch or allow the interchanging of test leads.
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