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1、BRITISH STANDARDBS EN61557-12:2008Electrical 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 12: Performance measuring and monitoring devices (PMD)ICS 17.220.20; 29.080.01; 29.240.01 BS EN 61557-1
2、2:2008National forewordThis British Standard is the UK implementation of EN 61557-12:2008. It is identical to IEC 61557-12:2007.The UK participation in its preparation was entrusted to Technical CommitteePEL/85, Measuring equipment for electrical and electromagnetic quantities.A list of organization
3、s 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 confer immunity from legal obligations.This
4、 British Standard was published under the authorityStrategy Committee on 30 June 2008 BSI 2008ISISBN 978 0 580 56285 3Amendments/corrigenda issued since publicationDateCommentsEUROPEAN STANDARDEN 61557-12NORME EUROPENNEEUROPISCHE NORM May 2008 ICS 17.220.20; 29.080.01; 29.240.01English versionElectr
5、ical 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 12: Performance measuring and monitoring devices (PMD)(IEC 61557-12:2007)Scurit lectrique dans les rseaux de distribution basse tensionde
6、1 000 V c.a. et 1 500 V c.c. - Dispositifs de contrle, de mesure oude surveillance de mesures de protection - Partie 12: Dispositifs de mesure etde surveillance des performances (PMD) (CEI 61557-12:2007)Elektrische Sicherheitin Niederspannungsnetzenbis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Me
7、ssen oder berwachen von Schutzmanahmen - Teil 12: Kombinierte Gerte zur Messungund berwachung des Betriebsverhaltens(IEC 61557-12:2007)This European Standard was approved by CENELEC on 2008-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condi
8、tions 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 thre
9、e 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 electrotechnical
10、 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 th
11、e 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 2008 CENELEC -All rights of exploitation in any form and by any m
12、eans reserved worldwide for CENELEC members.Ref. No. EN 61557-12:2008 E 9 BS EN 61557-12:20083.1.7ForewordThe text of document 85/311/FDIS, future edition 1 of IEC 61557-12, prepared by IEC TC 85, Measuring equipment for electrical and electromagnetic quantities, was submitted to the IEC-CENELEC par
13、allel vote and was approved by CENELEC as EN 61557-12 on 2008-04-01.This standard is to be used in conjunction with EN 61557-1:2007 (unless otherwise specified). The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identicalnational
14、 standard or by endorsement(dop)2009-01-01 latest date by which the national standards conflictingwith the EN have to be withdrawn(dow)2011-04-01This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers ess
15、ential requirements of EC Directive 2004/108/EC. See Annex ZZ.Annexes ZA and ZZ have been added by CENELEC.Endorsement noticeThe text of the International Standard IEC 61557-12:2007 was approved by CENELEC as a EuropeanStandard without any modification.CONTENTSINTRODUCTION . 71Scope . 82Normative re
16、ferences . .93Terms and definitions . 103.1General definitions . 103.2Definitions related to uncertainty and performance . 113.3Definitions related to electric phenomena . 143.4Definitions related to measurement techniques . 173.5Notations . 173.5.1Functions . 173.5.2Symbols and abbreviations . 183.
17、5.3Indices . 184Requirements . 184.1General requirements . 184.2PMD general architecture . 194.3Classification of PMD . 194.4List of applicable performance classes . 204.4.1List of applicable function performance classes for PMD withoutexternal sensors . 204.4.2List of applicable system performance
18、classes for PMD withexternal sensors . 214.5Operating and reference conditions for PMD . 214.5.1Reference conditions . 214.5.2Rated operating conditions . 214.6Start-up conditions . 234.7Requirements for PMD functions (except PMD-A). 234.7.1Active power (P) and active energy (Ea) measurements . 234.
19、7.2Reactive power (QA, QV) and reactive energy (ErA, ErV) measurements . 284.7.3Apparent power (SA, SV) and apparent energy (EapA, EapV)measurements . 314.7.4Frequency (f) measurements . 334.7.5R.m.s. phase current (I) and neutral current (IN, INc) measurements . 344.7.6R.m.s. voltage (U) measuremen
20、ts . 394.7.7Power factor (PFA, PFV) measurements . 394.7.8Short term flicker (Pst) and long term flicker (Plt) measurements . 394.7.9Voltage dip (Udip) and voltage swell (Uswl) measurements . 404.7.10 Transients overvoltage (Utr) measurements . 424.7.11 Voltage interruption (Uint) measurements . 424
21、.7.12 Voltage unbalance (Unb, Unba) measurements . 434.7.13 Voltage harmonics (Uh) and voltage THD (THDu and THD-Ru)measurements . 444.7.14 Current harmonics (Ih) and current THD (THDi and THD-Ri)measurements . 454.7.15 Minimum, maximum, peak, three-phases average and demandmeasurements . 464.8Requi
22、rements for PMD-A functions . 464.9General mechanical requirements . 474.9.1Vibration requirements . 474.9.2IP requirements . 474.10 Safety requirements . 484.10.1 Clearances and creepage distances . 484.10.2 Connection of a fixed installed PMD with a current transformer . 484.10.3 Connection of a P
23、MD with a high voltage sensor . 484.10.4 Accessible parts . 484.10.5 Hazardous live parts . 494.11 Analog outputs . 494.11.1 General requirements . 494.11.2 Compliance voltage . 494.11.3 Analog output ripple content . 494.11.4 Analog output response time . 494.11.5 Limiting value of the analog outpu
24、t signal . 494.11.6 Pulse outputs . 505Marking and operating instructions . 505.1Marking . 505.2Operating and installation instructions . 505.2.1General characteristics . 505.2.2Essential characteristics . 515.2.3Safety characteristics . 536Tests . 536.1Type tests of PMD . 536.1.1Test of temperature
25、 influence . 546.1.2Active power . 546.1.3Apparent power . 576.1.4Power factor . 576.1.5Common mode voltage rejection test . 576.1.6Frequency . 586.1.7Measurement of voltage harmonics . 586.1.8Measurement of current harmonics . 586.1.9Dips and swells . 596.1.10 Voltage interruptions . 596.1.11 Outpu
26、ts tests . 596.1.12 Climatic tests . 606.1.13 EMC tests . 616.1.14 Start up tests . 616.2Type tests of PMD-A . 616.3Routine tests . 616.3.1Protective bonding test . 616.3.2Dielectric strength test . 626.3.3Uncertainty test . 62Annex A (informative) Definitions of electrical parameters . 63Annex B (normativ
