BS EN 61557-12-2008 Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring.pdf
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1、BRITISH STANDARD BS EN 61557-12:2008 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 12: Performance measuring and monitoring devices (PMD) ICS 17.220.20; 29.080.01; 29.240.01 ? BS EN
2、 61557-12:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008 ISISBN 978 0 580 56285 3 National foreword This British Standard is the UK implementation of EN 61557-12:2008. It is identical to IEC 61557-12:2007. The UK p
3、articipation 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 include all the nece
4、ssary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments/corrigenda issued since publication DateComments EUROPEAN STANDARD EN 61557-12 NORME EUROPENNE EUROPISCHE NORM May 2008 CENE
5、LEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worl
6、dwide for CENELEC members. Ref. No. EN 61557-12:2008 E ICS 17.220.20; 29.080.01; 29.240.01 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 protective measures - Part 12: Performance measurin
7、g and monitoring devices (PMD) (IEC 61557-12:2007) 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 12: Dispositifs de mesure et de surveillance des performances (PM
8、D) (CEI 61557-12:2007) Elektrische Sicherheit in Niederspannungsnetzen bis AC 1 000 V und DC 1 500 V - Gerte zum Prfen, Messen oder berwachen von Schutzmanahmen - Teil 12: Kombinierte Gerte zur Messung und berwachung des Betriebsverhaltens (IEC 61557-12:2007) This European Standard was approved by C
9、ENELEC on 2008-04-01. 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 alteration. Up-to-date lists and bibliographical references concerning such national stan
10、dards 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 translation under the responsibility of a CENELEC member into its own language and not
11、ified 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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
12、ia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 85/311/FDIS, future edition 1 of IEC 61557-12, prepared by IEC TC 85, Measuring equipment for electrical and electromagnetic
13、 quantities, was submitted to the IEC-CENELEC parallel 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 nat
14、ional level by publication of an identical national standard or by endorsement (dop) 2009-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-04-01 This European Standard has been prepared under a mandate given to CENELEC by the European Commissi
15、on and the European Free Trade Association and covers essential requirements of EC Directive 2004/108/EC. See Annex ZZ. Annexes ZA and ZZ have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61557-12:2007 was approved by CENELEC as a European Standard without a
16、ny modification. _ BS EN 61557-12:2008 2 w w w . b z f x w . c o m CONTENTS INTRODUCTION.7 1 Scope.8 2 Normative references .9 3 Terms and definitions .10 3.1 General definitions 10 3.2 Definitions related to uncertainty and performance11 3.3 Definitions related to electric phenomena14 3.4 Definitio
17、ns related to measurement techniques .17 3.5 Notations.17 3.5.1 Functions 17 3.5.2 Symbols and abbreviations18 3.5.3 Indices 18 4 Requirements.18 4.1 General requirements18 4.2 PMD general architecture19 4.3 Classification of PMD 19 4.4 List of applicable performance classes 20 4.4.1 List of applica
18、ble function performance classes for PMD without external sensors20 4.4.2 List of applicable system performance classes for PMD with external sensors21 4.5 Operating and reference conditions for PMD .21 4.5.1 Reference conditions.21 4.5.2 Rated operating conditions 21 4.6 Start-up conditions 23 4.7
19、Requirements for PMD functions (except PMD-A)23 4.7.1 Active power (P) and active energy (Ea) measurements 23 4.7.2 Reactive power (QA, QV) and reactive energy (ErA, ErV) measurements 28 4.7.3 Apparent power (SA, SV) and apparent energy (EapA, EapV) measurements.31 4.7.4 Frequency (f) measurements.3
20、3 4.7.5 R.m.s. phase current (I) and neutral current (IN, INc) measurements34 4.7.6 R.m.s. voltage (U) measurements39 4.7.7 Power factor (PFA, PFV) measurements 39 4.7.8 Short term flicker (Pst) and long term flicker (Plt) measurements.39 4.7.9 Voltage dip (Udip) and voltage swell (Uswl) measurement
21、s .40 4.7.10 Transients overvoltage (Utr) measurements 42 4.7.11 Voltage interruption (Uint) measurements42 4.7.12 Voltage unbalance (Unb, Unba) measurements .43 4.7.13 Voltage harmonics (Uh) and voltage THD (THDu and THD-Ru) measurements.44 BS EN 61557-12:2008 3 w w w . b z f x w . c o m 4.7.14 Cur
22、rent harmonics (Ih) and current THD (THDi and THD-Ri) measurements.45 4.7.15 Minimum, maximum, peak, three-phases average and demand measurements.46 4.8 Requirements for PMD-A functions46 4.9 General mechanical requirements .47 4.9.1 Vibration requirements 47 4.9.2 IP requirements.47 4.10 Safety req
23、uirements 48 4.10.1 Clearances and creepage distances 48 4.10.2 Connection of a fixed installed PMD with a current transformer .48 4.10.3 Connection of a PMD with a high voltage sensor .48 4.10.4 Accessible parts 48 4.10.5 Hazardous live parts49 4.11 Analog outputs 49 4.11.1 General requirements49 4
24、.11.2 Compliance voltage .49 4.11.3 Analog output ripple content49 4.11.4 Analog output response time .49 4.11.5 Limiting value of the analog output signal49 4.11.6 Pulse outputs 50 5 Marking and operating instructions .50 5.1 Marking.50 5.2 Operating and installation instructions.50 5.2.1 General c
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