1、 Electricity metering equipment(AC)General requirements,tests and test conditions Part 11:Metering equipment Reference number IEC 62052-11:2003(E)INTERNATIONAL STANDARD IEC62052-11 First edition2003-02 This English-language version is derived from the original bilingual publication by leaving out al
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8、the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 Electricity metering equipment(AC)General requirements,tests and test conditions Part 11:Metering equipment For price,see current catalogue IEC 2003 Copyright-all rights reserved No part of this publication ma
9、y be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:
10、+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch INTERNATIONAL STANDARD IEC62052-11 First edition2003-02 X Commission Electrotechnique InternationaleInternational Electrotechnical Commission PRICE CODE 62052-11 IEC:2003 3 CONTENTSFOREWORD.4INTRODUCTION.91Scope.112Normative references.113Terms and
11、 definitions.153.1General definitions.153.2Definitions related to the functional elements.193.3Definitions of mechanical elements.233.4Definitions related to insulation.253.5Definitions of meter quantities.273.6Definitions of influence quantities.293.7Definition of tests.313.8Definitions related to
12、electromechanical meters.314Standard electrical values.334.1Standard reference voltages.334.2Standard currents.354.3Standard reference frequencies.355Mechanical requirements and tests.355.1General mechanical requirements.355.2Case.355.3Window.375.4Terminals Terminal block(s)Protective earth terminal
13、.395.5Terminal cover(s).395.6Clearance and creepage distances.415.7Insulating encased meter of protective class II.435.8Resistance to heat and fire.435.9Protection against penetration of dust and water.435.10 Display of measured values.455.11 Output device.455.12 Marking of meter.476Climatic conditi
14、ons.516.1Temperature range.516.2Relative humidity.516.3Tests of the effect of the climatic environments.517Electrical requirements.557.1Influence of supply voltage.557.2Heating.577.3Insulation.577.4Immunity to earth fault.617.5Electromagnetic compatibility(EMC).638Type test.718.1Test conditions.7162
15、052-11 IEC:2003 5 Annex A(normative)Relationship between ambient air temperature and relativehumidity.73Annex B(normative)Voltage wave-form for the tests of the effect of voltage dips andshort interruptions.75Annex C(normative)Test circuit diagram for the test of immunity to earth fault.77Annex D(no
16、rmative)Optical test output.79Annex E(informative)Test set-up for EMC tests.81Annex F(informative)Test schedule Recommended test sequences.85Figure A.1 Relationship between ambient air temperature and relative humidity.73Figure B.1 Voltage interruptions of U=100%,1 s.75Figure B.2 Voltage interruptions of U=100%,one cycle at rated frequency.75Figure B.3 Voltage dips of U=50%.75Figure C.1 Circuit to simulate earth fault condition in phase 1.77Figure C.2 Voltages at the meter under test.77Figure D.
