BSI PD IEC/TR 61547-1:2017
$167.15
Equipment for general lighting purposes. EMC immunity requirements – An objective light flickermeter and voltage fluctuation immunity test method
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 42 |
This part of IEC 61547 describes an objective light flickermeter, which can be applied for, amongst others, the following purposes:
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testing the intrinsic performance of all lighting equipment without voltage fluctuations;
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testing the immunity performance of lighting equipment against (unintentional) voltage fluctuation disturbance on the AC power port;
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testing the immunity performance of lighting equipment against intentional voltage fluctuation on the AC power port arising for example from ripple control systems.
The object of this document is to establish a common and objective reference for evaluating the performance of lighting equipment in terms of illuminance flicker. Temporal changes in the colour of light (chromatic flicker) are not considered in this test.
This method can be applied to lighting equipment which is within the scope of IEC technical committee 34, such as lamps and luminaires, intended for connection to a low voltage electricity supply. Independent auxiliaries such as drivers can also be tested by application of a representative light source to that auxiliary.
The objective light flickermeter and voltage fluctuation immunity method described in this document are based on the IEC 61000‑3‑3 standard for voltage fluctuation limits and the flickermeter standard IEC 61000‑4‑15 .
The objective light flickermeter described in this document can be applied to objectively assess flicker of lighting equipment that is powered from any type of source, AC mains, DC mains, battery fed or fed through an external dimmer. The specific voltage fluctuation immunity test method described in this document applies to lighting equipment rated for 120 V AC and 230 V AC, 50 Hz and 60 Hz.
The principle of the method can be applied for other nominal voltage and frequency ratings.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms, definitions, abbreviated terms and symbols 3.1 Terms and definitions |
| 11 | 3.2 Abbreviated terms 3.3 Symbols |
| 12 | 4 General |
| 13 | 5 Light flickermeter 6 Voltage fluctuation disturbance signal 6.1 General Figures Figure 1 – Full EMC approach for mains voltage fluctuations |
| 15 | 6.2 Mains signal parameters 6.3 Disturbance signal parameters and test levels Figure 2 – Definition of the mains test signal including a rectangular modulated voltage fluctuation (see Equation (1)) |
| 16 | Tables Table 1 – Voltage fluctuations – Test specification of voltage fluctuations applied at input AC power ports 120/230 V; 50/60 Hz |
| 17 | 7 Test setup and equipment 7.1 General 7.2 Test voltage Figure 3 – Block diagram voltage-fluctuation immunity test |
| 18 | 7.3 Optical test environment 7.4 Light sensor and amplifier 7.5 Signals to be measured |
| 19 | 7.6 Signal processing 7.6.1 Anti-aliasing filter 7.6.2 Sampling frequency |
| 20 | 7.6.3 Signal resolution |
| 21 | 8 Verification procedure 8.1 General 8.2 Light flickermeter Figure 4 – Example of a recorded mains voltage fluctuation and illuminance signal of a 60 W incandescent lamp |
| 22 | 8.3 Mains voltage parameters without modulation 8.3.1 Nominal voltage level 8.3.2 Mains frequency 8.4 Voltage fluctuation level 8.4.1 General 8.4.2 Option 1: measure the actual modulation frequencies and voltage levels 8.4.3 Option 2: measure Pv/ST-values using a flickermeter |
| 23 | 8.5 Light sensor and amplifier 8.6 Test environment 8.7 Light flicker noise 9 Test procedure |
| 24 | 10 Conditions during testing 11 Evaluation of the test result |
| 25 | 12 Test report |
| 26 | Annex A (informative) Specification of the light flickermeter A.1 Voltage flickermeter Figure A.1 – Structure of the IEC 61000-4-15flickermeter which uses voltage as input Figure A.2 – Structure of the light flickermeter |
| 27 | A.2 Specification of the light flickermeter A.2.1 General A.2.2 Block a: illuminance adapter A.2.3 Block b: weighting filters |
| 28 | A.2.4 Block c: squaring multiplier, sliding mean filter and scaling A.2.5 Block d: statistical analysis |
| 29 | A.3 Verification of the light flickermeter A.4 Example of PstLM implementation in MATLAB® Table A.1 – Test specification of illuminance fluctuations for lightmeter classifier |
| 30 | Annex B (informative) Uncertainty considerations B.1 General B.2 General symbols B.3 Measurand B.4 Influence quantities |
| 31 | Table B.1 – Influence quantities and their recommended tolerances |
| 32 | B.5 Uncertainty budget |
| 33 | Table B.2 – Uncertainty budget of the voltage fluctuation immunity test |
| 34 | Annex C (informative) Examples of test results of lighting equipment C.1 Test without voltage fluctuations C.2 Test with (intentional) voltage fluctuations Table C.1 – Numerical results PstLM calculations for three EUTs without voltage modulation Table C.2 – Numerical results PstLM calculations for three EUTs with voltage modulation |
| 35 | Figure C.1 – Graphical LMstP results for three EUTs withrectangular modulation at five frequencies (PVst=1) |
| 36 | Figure C.2 – EUT1: recorded signals (no mains voltage modulation) |
| 37 | Figure C.3 – EUT1: recorded signals (with modulation) |
| 38 | C.3 Test under dimming conditions Figure C.4 – EUT2: relative illuminance: mains voltage modulation d = 0,407 % at 13,5 Hz (PVst=1) Figure C.5 – EUT3: relative illuminance: mains voltage modulation d = 0,407 % at 13,5 Hz (PVst=1) |
| 39 | Figure C.6 – Graphical PstLM results for four EUTs under dimming conditions Table C.3 – Numerical results Pst calculations for four EUTs under dimming conditions |
| 40 | Bibliography |
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