【BS英国标准】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.doc
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1、Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBRITISH STANDARDBS EN61557-2:2007Electrical safety in low voltage distribution systems up to1 000 V a.c. and1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures Part 2: Insulation
2、 resistanceThe European Standard EN 61557-2:2007 has the status of aBritish StandardICS 17.220.20; 29.080.01; 29.240.01 BS EN 61557-2:2007National forewordThis British Standard was published by BSI. It is the UK implementation ofEN 61557-2:2007. It is identical with IEC 61557-2:2007. It supersedesBS
3、 EN 61557-2:1997, which will be withdrawn on 1 March 2010.The UK participation in its preparation was entrusted to Technical CommitteePEL/85, Measuring equipment for electrical and electromagnetic quantities.A list of organizations represented on this committee can be obtained on request to its secr
4、etary.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 confer immunity from legal obligations.Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrol
5、led Copy, (c) BSIAmd. No.DateCommentsThis British Standard was published under the authority of the Standards Policy and Strategy Committeeon 29 June 2007 BSI 2007ISBN 978 0 580 50861 5Amendments issued since publicationEUROPEAN STANDARDEN 61557-2NORME EUROPENNEEUROPISCHE NORM March 2007 ICS 17.220.
6、20; 29.080.01; 29.240.01Supersedes EN 61557-2:1997English versionElectrical 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(IEC 61557-2:2007)Scurit lectrique dans les
7、rseaux de distribution basse tensionde 1 000 V c.a. et 1 500 V. c.c. - Dispositifs de contrle, de mesure ou de surveillance de mesuresde protection -Partie 2: Rsistance disolement(CEI 61557-2:2007)Elektrische Sicherheitin Niederspannungsnetzenbis AC 1 000 V und DC 1 500 V - Gerte zum Prfen,Messen od
8、er berwachen von Schutzmanahmen - Teil 2: Isolationswiderstand (IEC 61557-2:2007)Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSIThis European Standard was approved by CENELEC on 2007-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal
9、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 CENELEC member.
10、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 versions.CENELEC memb
11、ers 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, Slovakia, Sloven
12、ia, Spain, Sweden, Switzerland and the United Kingdom.CENELECEuropean Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische NormungCentral Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC -All rights of
13、exploitation in any form and by any means reserved worldwide for CENELEC members.Ref. No. EN 61557-2:2007 E 9 EN 61557-2:2007Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSIForewordThe text of document 85/291/FDIS, future edition 2 of IEC 61557-2, prepared
14、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 61557-2 on 2007-03-01.This European Standard supersedes EN 61557-2:1997.The following changes were made with respect to EN 61557-2:1997: d
15、efinitions complemented; revision of some requirements; 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 implementedat national leve
16、l by publication of an identicalnational standard or by endorsement(dop)2007-12-01 latest date by which the national standards conflicting with the EN have to be withdrawnAnnex ZA has been added by CENELEC.(dow)2010-03-01Endorsement noticeThe text of the International Standard IEC 61557-2:2007 was a
17、pproved by CENELEC as a EuropeanStandard without any modification.Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSICONTENTS1Scope .42Normative references.43Terms and definitions .44Requirements .45Marking and operating instructions .65.1Marking .65.2Operatin
18、g instructions .66Tests .6Annex ZA (normative) Normative references to international publications with theircorresponding European publications.9Table 1 Calculation of operating uncertainty .5Licensed Copy: Wang Bin, na, Thu Sep 13 08:00:23 GMT+00:00 2007, Uncontrolled Copy, (c) BSIELECTRICAL SAFETY
19、 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 resistance1ScopeThis part of IEC 61557 specifies the requirements applicable to equipment for measuring the insulation resistance of equip
20、ment and installations in the de-energized state.2Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any
21、amendments) applies.IEC 61010-1:2001, Safety requirements for electrical equipment for measurement, control, and laboratory use Part 1: General requirementsIEC 61557-1, Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500V d.c. Equipment for testing, measuring or monito
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