1、 IEC/TR 62750 Edition 1.0 2012-02 TECHNICAL REPORT Unified fluorescent lamp dimming standard calculations IEC/TR 62750:2012(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.U
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9、iec.ch.Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC/TR 62750 Edition 1.0 2012-02 TECHNICAL REPORT Unified fluorescent lamp dimming standard ca
10、lculations INTERNATIONAL ELECTROTECHNICAL COMMISSION R ICS 29.140 PRICE CODE ISBN 978-2-88912-939-3 Registered trademark of the International Electrotechnical Commission Warning!Make sure that you obtained this publication from an authorized distributor.Copyrighted material licensed to BR Demo by Th
11、omson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 62750 IEC:2012(E)CONTENTS FOREWORD.3 1 Scope.5 2 Explanation of the dimming requirements.5 2.1 General.5 2.2 Additional heating.5 2.3 Cathode
12、heating limits.6 2.4 Substitution resistors for electronic controlgear qualification.7 3 Determination of limit values.8 3.1 General.8 3.2 Minimum sum-of-squares SoSmin(ID30 ID IDtrans).9 3.2.1 Lamp and electronic controlgear systems SoSmin.9 3.2.2 Electronic controlgear qualification limits SoSmin.
13、11 3.3 Minimum cathode voltage CVmin(IDmin ID ID30).12 3.3.1 Lamp and electronic controlgear systems CVmin.12 3.3.2 Electronic controlgear qualification limits CVmin.12 3.4 Maximum cathode voltage CVmax(IDmin ID IDtrans).13 3.4.1 Lamp and electronic controlgear systems CVmax.13 3.4.2 Electronic cont
14、rolgear qualification limits CVmax.14 4 Example of calculation for 54W HO lamps.14 4.1 General.14 4.2 Calculation of lamp and ECG systems SoSmin.15 4.3 Calculation of lamp and ECG systems CVmin.15 4.4 Calculation of ECG qualification limits CVmin.16 4.5 Calculation of lamp and ECG systems CVmax.16 4
15、.6 Calculation of ECG qualification limits CVmax.16 5 Glossary of symbols.17 Bibliography.20 Figure 1 Fundamental circuit for SoS test.10 Table 1 SoS parametric values.9 Table 2 Fitted power law parameters.11 Table 3 Informative parameters for lamp and controlgear systems.13 Table 4 Datasheet parame
16、ters.14 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.TR 62750 IEC:2012(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ UNIFIED FLUORESCENT LAMP DIMMING STANDARD CALCULATIONS FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standardization comprising all national electrotechnical committees(IEC Nat
