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.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: Wang Bin, na, Fri Sep 14 00:45:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 61557-4:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2
3、007 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 It supersedes BS EN 61557-4:1997, which will be withdrawn on 1 March 2010. The UK participation in its preparation
4、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 include all the necessary provisions of a contract.
5、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: Wang Bin, na, Fri Sep 14 00:45:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD
6、 EN 61557-4 NORME EUROPENNE EUROPISCHE 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
7、 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 safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for te
8、sting, 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 1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesures
9、 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 berwachen von Schutzmanahmen - Teil 4: Widerstand von Erdungsleitern, Schutzleitern und Pote
10、ntialausgleichsleitern (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 conditions for giving this European Standard the status of a national standard without any alterat
11、ion. 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 three official versions (English, French, German). A version in any other language made by tran
12、slation 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 electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, F
13、inland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, na, Fri Sep 14 00:45:38 GMT+00:00 2007, Uncontr
14、olled 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 electromagnetic quantities, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61557-4 on 2007-03-01. This Europ
15、ean 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 has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-12-01 latest date by
16、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 61557-4:2007 was approved by CENELEC as a European Standard without any modification. _ EN 61557-4:2007 2 Lic
17、ensed Copy: Wang Bin, na, Fri Sep 14 00:45:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI CONTENTS 1 Scope.4 2 Normative 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
18、uncertainty .5 Annex ZA (normative) Normative references to international publications with their corresponding European publications8 EN 61557-4:2007 3 Licensed Copy: Wang Bin, na, Fri Sep 14 00:45:38 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS U
19、P 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 1 Scope This part of IEC 61557 specifies the requirements applicable to equipment for measuring the resistance of earth conductors
20、, protective earth conductors and conductors for equipotential bonding, 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 d
21、ated references, only the edition cited applies. For undated references, 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 monito
22、ring of protective measures Part 1: General requirements 3 Terms and 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
23、.c. voltage. The open-circuit voltage shall not exceed 24 V and shall 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 eit
24、her with a reversing switch or allow the interchanging of test leads. 4.4 The measuring range within which the operating uncertainty in accordance with 4.6 is maintained, shall include the values 0,2 to 2 . The range shall be marked on the equipment. With analogue only presentation of the measuring
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