IEC TR 61547-1:2015

IEC TR 61547-1 ®
Edition 1.0 2015-04
TECHNICAL
REPORT
colour
inside
Equipment for general lighting purposes – EMC immunity requirements –
Part 1: An objective voltage fluctuation immunity test method

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IEC TR 61547-1 ®
Edition 1.0 2015-04
TECHNICAL
REPORT
colour
inside
Equipment for general lighting purposes – EMC immunity requirements –

Part 1: An objective voltage fluctuation immunity test method

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.140.20 ISBN 978-2-8322-2649-0

– 2 – IEC TR 61547-1:2015 © IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviations and symbols . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 9
3.3 Symbols . 9
4 General . 10
5 Voltage fluctuation disturbance signal . 10
5.1 General . 10
5.2 Mains signal parameters . 12
5.3 Disturbance signal parameters and test levels . 13
6 Test setup and equipment . 14
6.1 General . 14
6.2 Test voltage . 14
6.3 Optical test environment . 15
6.4 Light sensor and amplifier . 15
6.5 Signals to be measured . 15
6.6 Signal processing . 16
6.6.1 Anti-aliasing filter . 16
6.6.2 Sampling frequency . 16
6.6.3 Signal resolution . 18
7 Verification procedure . 18
7.1 General . 18
7.2 Light flickermeter . 18
7.3 Mains voltage parameters without modulation . 18
7.3.1 Nominal voltage level . 18
7.3.2 Mains frequency . 19
7.4 Voltage fluctuation level . 19
7.4.1 General . 19
7.4.2 Option 1: measure the actual modulation frequencies and voltage levels . 19
7.4.3 Option 2: measure P -values using a flickermeter . 19
st
7.5 Light sensor and amplifier . 19
7.6 Test environment . 20
7.7 Light flicker noise . 20
8 Test procedure . 20
9 Conditions during testing . 20
10 Evaluation of the test result . 21
11 Test report . 21
Annex A (informative) Specification of the light flickermeter . 23
A.1 The voltage flickermeter . 23
A.2 Specification of the light flickermeter . 24
A.2.1 General . 24
A.2.2 Block a: illuminance adapter . 24

A.2.3 Block b: weighting filters . 24
A.2.4 Block c: squaring multiplier, sliding mean filter and scaling . 25
A.2.5 Block d: statistical analysis . 25
A.3 Verification of the light flickermeter . 26
Annex B (informative) Uncertainty considerations . 27
B.1 General . 27
B.2 General symbols . 27
B.3 Measurand . 27
B.4 Influence quantities . 27
B.5 Uncertainty budget . 29
B.6 Reference document . 29
Annex C (informative) Examples of a test result . 31
C.1 EUTs . 31
C.2 Recorded signals . 31
C.3 Results . 34
Bibliography . 36

Figure 1 – The full EMC approach for mains voltage fluctuations . 11
Figure 2 – Definition of the mains test signal including a rectangular modulated
voltage fluctuation (see Equation (1)) . 12
Figure 3 – Block diagram voltage-fluctuation immunity test . 14
Figure 4 – Example of a recorded mains voltage fluctuation and illuminance signal of a
60 W incandescent lamp . 17
Figure A.1 –Structure of the IEC 61000-4-15 flickermeter which uses voltage as input . 23
Figure A.2 – Structure of the light flickermeter . 23
Figure C.1 – EUT1: recorded signals (no mains voltage modulation) . 32
Figure C.2 – EUT1: recorded signals (with modulation) . 33
Figure C.3 – EUT2: relative illuminance: mains voltage modulation d = 0,407 % at
13,5 Hz (P = 1) . 34
st
Figure C.4 – EUT3: relative illuminance: mains voltage modulation d = 0,407 % at
13,5 Hz (P = 1) . 34
st
Figure C.5 – Graphical P results for three EUTs with rectangular modulation at five
st
frequencies (P = 1) . 35
st
Table 1 – Voltage fluctuations – Test specification of voltage fluctuations applied at
input a.c. power ports 230 V; 50 Hz . 13
Table A.1 – Test specification of illuminance fluctuations for lightmeter classifier . 26
Table B.1 – P influence quantities and their recommended tolerances. 28
st
Table B.2 – Uncertainty budget of the voltage fluctuation immunity test . 30
Table C.1 – Numerical results P calculations for three EUTs with and without
st
modulation . 35

– 4 – IEC TR 61547-1:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EQUIPMENT FOR GENERAL LIGHTING PURPOSES –
EMC IMMUNITY REQUIREMENTS –
Part 1: An objective voltage fluctuation immunity test method

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. Internat
...