1、BRITISH STANDARDBS EN 50470-1:2006Electricity metering equipment (a.c.) Part 1: General requirements, tests and test conditions Metering equipment (class indexes A, B and C)The European Standard EN 50470-1:2006 has the status of a British StandardICS 91.140.50g49g50g3g38g50g51g60g44g49g42g3g58g44g55
2、g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 50470-1:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006
3、 BSI 2006ISBN 0 580 49810 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN 50470-1:2006.The UK participation in its preparation was entrusted to Technical Committee PEL/13, Electricity meters.A list of organizations represented on PEL/13 can be obtained
4、 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. Amendments issued since publicationAmd. No. Date C
5、ommentsEUROPEAN STANDARD EN 50470-1 NORME EUROPENNE EUROPISCHE NORM October 2006 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
6、 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50470-1:2006 E ICS 91.140.50 English version Electricity metering equipment (a.c.) Part 1: General requirements, tests and test conditions - Metering equipment (class indexes A
7、, B and C) Equipement de comptage dlectricit (c.a.) Partie 1: Prescriptions gnrales, essais et conditions dessai - Equipement de comptage (classes de prcision A, B et C) Wechselstrom-Elektrizittszhler Teil 1: Allgemeine Anforderungen, Prfungen und Prfbedingungen - Messeinrichtungen (Genauigkeitsklas
8、sen A, B und C) This European Standard was approved by CENELEC on 2006-05-01. 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
9、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 translation under the responsi
10、bility 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, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hun
11、gary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 50470-1:2006 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 13, Equ
12、ipment for electrical energy measurement and load control. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50470-1 on 2006-05-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publicatio
13、n of an identical national standard or by endorsement (dop) 2007-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-05-01 This EN 50470-1 is related to EN 62052-11:2003, Electricity metering equipment (a.c.) General requirements, tests and test
14、conditions Part 11: Metering equipment. The structure of the two standards is similar, modifications in this European Standard are provided in the perspective of compliance with the essential requirements of the Directive 2004/22/EC on Measuring Instruments (MID). This standard is to be used with: E
15、N 50470-2:2006, Electricity metering equipment (a.c.) Part 2: Particular requirements Electromechanical meters for active energy (class indexes A and B) or EN 50470-3:2006, Electricity metering equipment (a.c.) Part 3: Particular requirements Static meters for active energy (class indexes A, B and C
16、). This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directives 89/336/EMC and 2004/22/EC. See Annex ZZ. _ 3 EN 50470-1:2006 Contents 1 Scope.6 2 Normative references .6
17、 3 Terms and definitions .9 3.1 General definitions 9 3.2 Definitions related to the functional elements 11 3.3 Definitions of mechanical elements .13 3.4 Definitions related to insulation .14 3.5 Definitions of meter quantities .15 3.6 Definitions of influence quantities 17 3.7 Definitions of tests
18、.20 3.8 Definitions related to electromechanical meters.20 3.9 Abbreviations 21 4 Standard electrical values 21 4.1 Standard reference voltages21 4.2 Standard currents and current ranges .21 4.3 Standard reference frequency .22 5 Mechanical requirements and tests 22 5.1 General mechanical requiremen
19、ts .22 5.2 Case .23 5.2.1 Requirements 23 5.2.2 Mechanical strength tests of meter case23 5.3 Window .24 5.4 Terminals - Terminal block(s) - Protective earth terminal .24 5.5 Terminal cover(s) 25 5.6 Clearance and creepage distances25 5.7 Insulating encased meter of protective class II 26 5.8 Resist
20、ance to heat and fire26 5.9 Protection against penetration of dust and water .27 5.10 Display of measured values.27 5.11 Output device and operation indicator .28 5.11.1 General .28 5.11.2 Mechanical and electrical characteristics .28 5.11.3 Optical characteristics .29 5.12 Marking of meter .29 5.12
21、.1 Name-plates 29 5.12.2 Connection diagrams and terminal marking .31 5.13 Accompanying information 31 6 Climatic conditions .31 6.1 Temperature ranges 31 6.2 Relative humidity.32 6.3 Tests of the effect of the climatic environments .32 6.3.1 General .32 6.3.2 Dry heat test (Test B) 32 6.3.3 Cold te
22、st (Test A) 33 6.3.4 Damp heat cyclic test (Test Db).33 6.3.5 Protection against solar radiation (Test Sa) .33 EN 50470-1:2006 4 7 Electrical requirements .34 7.1 Voltage range34 7.2 Heating .34 7.3 Insulation 34 7.3.1 Requirements 34 7.3.2 General test conditions34 7.3.3 Impulse voltage test 35 7.3
23、.4 AC voltage test36 7.4 Electromagnetic compatibility (EMC) .36 7.4.1 Electromagnetic environment.36 7.4.2 General requirements and test conditions37 7.4.3 Critical change value .37 7.4.4 Immunity to voltage dips and short interruptions 38 7.4.5 Immunity to electrostatic discharges 38 7.4.6 Immunit
24、y to radiated RF electromagnetic fields39 7.4.7 Immunity to electrical fast transients/bursts .39 7.4.8 Immunity to conducted disturbances, induced by RF fields 40 7.4.9 Immunity to surges 40 7.4.10 Immunity to damped oscillatory waves.41 7.4.11 Immunity to continuous magnetic fields of external ori
25、gin 41 7.4.12 Immunity to power frequency magnetic fields of external origin41 7.4.13 Radio interference suppression .42 8 Type test 42 8.1 Test conditions42 Annex A (normative) Relationship between ambient air temperature and relative humidity .43 Annex B (normative) Optical test output.44 Annex C
26、(normative) Voltage waveform for the tests of the effect of voltage dips and short interruptions 45 Annex D (informative) Test set-up for electromagnetic compatibility (EMC) tests .46 Annex E (normative) Electromagnet for testing the influence of continuous magnetic fields of external origin .48 Ann
27、ex F (informative) Test schedule - Recommended test sequences .49 Annex ZZ (informative) Coverage of Essential Requirements of EC Directives.51 Index 52 Figures Figure A.1 Relationship between ambient air temperature and relative humidity.43 Figure B.1 Test arrangement for the test output.44 Figure
28、B.2 Waveform of the optical test output 44 Figure C.1 Voltage interruptions of U = 100 %, 1 s 45 Figure C.2 Voltage interruptions of U = 100 %, one cycle at rated frequency45 Figure C.3 Voltage dips of U = 50 % .45 Figure D.1 Test set-up for immunity to radiated RF electromagnetic fields46 Figure D.
29、2 Test set-up for immunity to electrical fast transients/bursts: voltage circuits 46 Figure D.3 Test set-up for immunity to electrical fast transients/bursts: current circuits.47 5 EN 50470-1:2006 Figure E.1 Electromagnet for testing the influence of continuous magnetic fields of external origin.48
30、Tables Table 1 Standard reference voltages.21 Table 2 Standard values of Itr, Irefand In21 Table 3 Current ranges.22 Table 4 Clearances and creepage distances for insulating encased meter of protective class I.26 Table 5 Clearances and creepage distances for insulating encased meter of protective cl
31、ass II26 Table 6 Voltage marking.30 Table 7 Upper and lower temperature limits 31 Table 8 Preferred upper and lower temperature limits corresponding to IEC environmental classes.32 Table 9 Relative humidity32 Table 10 Voltage range 34 EN 50470-1:2006 6 1 Scope This European Standard applies to newly
32、 manufactured watt-hour meters, measuring active electrical energy, intended for residential, commercial and light industrial use, for use on 50 Hz electrical networks. It specifies general requirements and type tests methods. It applies to electromechanical or static watt-hour meters for indoor and
33、 outdoor application, consisting of a measuring element and register(s) enclosed in a meter case. It also applies to operation indicator(s) and test output(s). If the meter has (a) measuring element(s) for more than one type of energy (multi-energy meters), or when other functional elements, like ma
34、ximum demand indicators, electronic tariff registers, time switches, ripple control receivers, data communication interfaces, etc. are enclosed in the meter case (multi-function meters) then this standard applies only for the active energy metering part. This standard distinguishes between: electrom
35、echanical and static meters; meters of class indexes A, B and C; direct connected and transformer operated meters; protective class I and protective class II meters; meters intended to be used indoors and outdoors. It does not apply to: watt-hour meters where the voltage across the connection termin
36、als exceeds 600 V (line-to-line voltage for meters for polyphase systems); portable meters; reference meters. For rack-mounted meters, the mechanical properties are not covered in this standard. The test levels are regarded as minimum values to guarantee the proper functioning of the meter under nor
37、mal working conditions. For special applications, other test levels might be necessary and should be agreed on between the user and the manufacturer. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editi
38、on cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Publication Year Title EN 50470-2 2006Electricity metering equipment (a.c.) Particular requirements Part 2: Electromechanical meters for active energy (class indexes A and B) E
39、N 50470-3 2006 Electricity metering equipment (a.c.) Particular requirements Part 3: Static meters for active energy (class indexes A, B and C) EN 55022 2006Information technology equipment Radio disturbance characteristics Limits and methods of measurement (CISPR 22:2005, mod.) EN 60044-1 + A1 + A2
40、 1999 2000 2003 Instrument transformers Part 1: Current transformers (IEC 60044-1:1996, mod. + A1:2000 + A2:2002) 7 EN 50470-1:2006 Publication Year Title EN 60044-2 + A1 + A2 1999 2000 2003 Instrument transformers Part 2: Inductive voltage transformers (IEC 60044-2:1997, mod. + A1:2000 + A2:2002) E
41、N 60068-2-1 + A1 + A2 1993 1993 1994 Environmental testing Part 2: Tests Tests A: Cold (IEC 60068-2-1:1990 + A1:1993 + A2:1994) EN 60068-2-2 + A1 + A2 1974 1993 1994 Environmental testing Part 2: Tests Tests B: Dry heat (IEC 60068-2-2:1974 + IEC 60068-2-2A:1976 + A1:1993 + A2:1994) EN 60068-2-5 1999
42、 Environmental testing Part 2: Tests Test Sa: Simulated solar radiation at ground level (IEC 60068-2-5:1975) EN 60068-2-6 1995 Environmental testing Part 2: Tests Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995 + corrigendum Mar. 1995) EN 60068-2-11 1999 Environmental testing Part 2: Tests Test
43、Ka: Salt mist (IEC 60068-2-11:1981) EN 60068-2-27 1993 Environmental testing Part 2: Tests Test Ea and guidance: Shock (IEC 60068-2-27:1987) EN 60068-2-30 1999 Environmental testing Part 2: Tests Test Db and guidance: Damp heat, cyclic (12 + 12-hour cycle) (IEC 60068-2-30:1980 + A1:1985) EN 60068-2-
44、75 1997 Environmental testing Part 2-75: Tests Test Eh: Hammer tests (IEC 60068-2-75:1997) EN 60085 2004 Electrical insulation Thermal classification (IEC 60085:2004) EN 60359 2002 Electrical and electronic measurement equipment Expression of performance (IEC 60359:2001) EN 60529 + A1 1991 2000 Degr
45、ees of protection provided by enclosures (IP Code) (IEC 60529:1989 + A1:1999) EN 60695-2-10 2001 Fire hazard testing Part 2-10: Glowing/hot-wire based test methods Glow-wire apparatus and common test procedure (IEC 60695-2-10:2000) EN 60695-2-11 2001 Fire hazard testing Part 2-11: Glowing/hot-wire b
46、ased test methods Glow-wire flammability test method for end-products (IEC 60695-2-11:2000) EN 60721-3-1 1997 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 1: Storage (IEC 60721-3-1:1997) EN 60721-3-2 1997 Classif
47、ication of environmental conditions Part 3: Classification of groups of environmental parameters and their severities Section 2: Transportation (IEC 60721-3-2:1997) EN 60721-3-3 1995 Classification of environmental conditions Part 3: Classification of groups of environmental parameters and their sev
48、erities Section 3: Stationary use at weatherprotected locations (IEC 60721-3-3:1994) EN 61000-4-1 2000 Electromagnetic compatibility (EMC) Part 4-1: Testing and measurement techniques Overview of IEC 61000-4 series (IEC 61000-4-1:2000) EN 61000-4-2 + A1 + A2 1995 1998 2001 Electromagnetic compatibil
49、ity (EMC) Part 4-2: Testing and measurement techniques Electrostatic discharge immunity test (IEC 61000-4-2:1995 + A1:1998 + A2:2000) EN 61000-4-3 2002 Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3:2002) EN 50470-1:2006 8 Publication Year Title EN 61000-4-4 2004 El
