BS EN 61000-4-15:2011

FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Parameters and symbols
4 Description of the instrument
5 Specification
6 Flickermeter tests
7 Environmental and other requirements
Annex A (normative) - Techniques to improve accuracy of
        flicker evaluation
Annex B (informative) - Meaning of delta U/U and number of
        voltage changes, d[c], d(t), d[max] examples
Annex C (informative) - Sample protocols for type testing
Bibliography
Annex ZA (normative) - Normative references to international
         publications with their corresponding European
         publications

Provides a functional and design specification for flicker measuring apparatus intended to indicate the correct flicker perception level for all practical voltage fluctuation waveforms. Information is presented to enable such an instrument to be constructed.

This part of IEC61000 gives a functional and design specification for flicker measuring apparatus intended to indicate the correct flicker perception level for all practical voltage fluctuation waveforms. Information is presented to enable such an instrument to be constructed. A method is given for the evaluation of flicker severity on the basis of the output of flickermeters complying with this standard.

The flickermeter specifications in this part of IEC61000 relate only to measurements of 120V and 230V, 50Hz and 60Hz inputs. Characteristics of some incandescent lamps for other voltages are sufficiently similar to the values in Table1 and Table2, that the use of a correction factor can be applied for those other voltages. Some of these correction factors are provided in the AnnexB. Detailed specifications for voltages and frequencies other than those given above, remain under consideration.

The object of this part of IEC61000 is to provide basic information for the design and the instrumentation of an analogue or digital flicker measuring apparatus. It does not give tolerance limit values of flicker severity.