首页下载资源安全技术IEC 62052-11是一项国际标准，主要涉及电能计量装置的测量和限制技术要求，旨在确保电能计量装置的准确性和性能稳定性

ZIPIEC 62052-11是一项国际标准，主要涉及电能计量装置的测量和限制技术要求，旨在确保电能计量装置的准确性和性能稳定性

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IEC 62052-11是一项国际标准，主要涉及电能计量装置的测量和限制技术要求，旨在确保电能计量装置的准确性和性能稳定性。该标准要求电能计量装置必须满足一系列的技术指标，包括测量精度、输出信号、温度范围、电磁兼容性和安全性等方面。 IEC 62052-11标准规定了电能计量装置的测量原理和计算方法，并阐明了电能测量的特性和基本法则，尤其是在规定电能计量装置的总体要求、测量范围、测量误差、输出信号等方面，提供了详细的技术规范和检验方法。 IEC 62052-11标准对于保障电能计量的准确性、时效性和公正性具有重要意义，对于电能供应企业、电能计量装置生产厂家以及检定、校准等相关机构具有指导和参考价值。通过IEC 62052-11标准的执行，可以有效地增强电力供应系统的安全和可靠性，维护电能供应市场的公平和健康，提高用户对电能计量装置的信任度和满意度。
IEC 62052-11
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
Electricity metering equipment – General requirements, tests and test
conditions –
Part 11: Metering equipment
IEC 62052-11:2020-06(en)
®
THIS PUBLICATION IS COPYRIGHT PROTECTED
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IEC 62052-11
Edition 2.0 2020-06
INTERNATIONAL
STANDARD
Electricity metering equipment – General requirements, tests and test
conditions –
Part 11: Metering equipment
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.20
ISBN 978-2-8322-8437-7
® Registered trademark of the International Electrotechnical Commission
®
Warning! Make sure that you obtained this publication from an authorized distributor.
– 2 – IEC 62052-11:2020 © IEC 2020
CONTENTS
FOREWORD ........................................................................................................................... 8
INTRODUCTION ................................................................................................................... 10
1 Scope ............................................................................................................................ 13
2 Normative references .................................................................................................... 14
3 Terms and definitions .................................................................................................... 17
3.1 General definitions ................................................................................................ 17
3.2 Definitions related to the functional elements ........................................................ 21
3.3 Definitions of meter ports ...................................................................................... 24
3.4 Definitions of mechanical elements ....................................................................... 25
3.5 Definitions related to measurements ..................................................................... 27
3.6 Definitions related to external influences ............................................................... 30
3.7 Definition of tests .................................................................................................. 33
3.8 Definitions related to electromechanical meters .................................................... 33
3.9 Definitions related to meter marking and symbols ................................................. 34
4 Nominal electrical values ............................................................................................... 35
4.1 Voltages ............................................................................................................... 35
4.1.1 Nominal voltages ........................................................................................... 35
4.1.2 Voltage ranges .............................................................................................. 36
4.2 Currents ................................................................................................................ 36
4.2.1 Nominal currents ........................................................................................... 36
4.2.2 Starting current .............................................................................................. 36
4.2.3 Minimum current ............................................................................................ 36
4.2.4 Maximum current ........................................................................................... 37
4.2.5 Current ranges .............................................................................................. 37
4.3 Frequencies .......................................................................................................... 37
4.3.1 Nominal frequencies ...................................................................................... 37
4.3.2 Frequency ranges .......................................................................................... 37
4.4 Power consumption ............................................................................................... 37
5 Construction requirements ............................................................................................. 39
5.1 General ................................................................................................................. 39
5.2 Mechanical tests ................................................................................................... 39
5.2.1 Shock test ..................................................................................................... 39
5.2.2 Vibration test ................................................................................................. 40
5.3 Window ................................................................................................................. 40
5.4 Terminals – Terminal block(s) – Protective conductor terminal .............................. 40
5.5 Sealing provisions ................................................................................................. 40
5.5.1 General ......................................................................................................... 40
5.5.2 Meter case .................................................................................................... 40
5.5.3 Meter terminals .............................................................................................. 41
5.5.4 Sealing of detached indicating displays ......................................................... 41
5.5.5 Sealing of LPIT connections .......................................................................... 41
5.5.6 Sealing of meter configuration ....................................................................... 42
5.6 Display of measured values .................................................................................. 42
5.6.1 General ......................................................................................................... 42
5.6.2 Meters without indicating displays.................................................................. 42
5.6.3 Meters with indicating displays ...................................................................... 42
IEC 62052-11:2020 © IEC 2020 – 3 –
5.7
Storage of measured values ................................................................................. 43
5.8 Pulse outputs ........................................................................................................ 43
5.8.1 General ......................................................................................................... 43
5.8.2 Optical test output ......................................................................................... 43
5.8.3 Electrical pulse output ................................................................................... 45
5.8.4 Operation indicator ........................................................................................ 45
5.9 Electrical pulse inputs ........................................................................................... 46
5.9.1 General characteristics .................................................................................. 46
5.9.2 Functional tests of electrical pulse inputs ....................................................... 46
5.10 Auxiliary power supply .......................................................................................... 46
6 Meter marking and documentation ................................................................................. 47
6.1 Meter accuracy class marking ............................................................................... 47
6.2 Meter marking ....................................................................................................... 47
6.3 Connection diagrams and terminal marking ........................................................... 51
6.4 Symbols ................................................................................................................ 51
6.4.1 General ......................................................................................................... 51
6.4.2 Symbols for the measuring elements ............................................................. 52
6.4.3 Symbols for transformer-operated meters ...................................................... 52
6.4.4 Identification of the displayed information ...................................................... 52
6.4.5 Marking of the measured quantity .................................................................. 53
6.4.6 Symbols of principal units used for meters (see Table 8) ............................... 53
6.4.7 Symbols for auxiliary devices ......................................................................... 54
6.4.8 Symbols for details of the suspension of the moving element ......................... 54
6.4.9 Symbols for communication ports .................................................................. 54
6.5 Documentation ...................................................................................................... 54
6.5.1 Installation manuals ....................................................................................... 54
6.5.2 Instruction for use .......................................................................................... 54
7 Metrological performance requirements and tests .......................................................... 54
7.1 General test conditions ......................................................................................... 54
7.2 Methods of accuracy verification ........................................................................... 56
7.3 Measurement uncertainty ...................................................................................... 56
7.4 Meter constant ...................................................................................................... 57
7.5 Initial start-up of the meter .................................................................................... 57
7.6 Test of no-load condition ....................................................................................... 58
7.7 Starting current test .............................................................................................. 58
7.8 Repeatability test .................................................................................................. 59
7.9 Limits of error due to variation of the current ......................................................... 59
7.10 Limits of error due to influence quantities .............................................................. 60
7.11 Time-keeping accuracy ......................................................................................... 60
8 Climatic requirements .................................................................................................... 60
8.1 General ................................................................................................................. 60
8.2 Environmental conditions ...................................................................................... 60
8.3 Tests of the effects of the climatic environments ................................................... 60
8.3.1 General test requirements ............................................................................. 60
8.3.2 Acceptance criteria ........................................................................................ 61
8.3.3 Dry heat test .................................................................................................. 61
8.3.4 Cold test ........................................................................................................ 61
8.3.5 Damp heat cyclic test .................................................................................... 61
8.3.6 Protection against solar radiation ................................................................... 62
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