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At the time of the article preparation, there were no certified methods of objective measurement of the inrush current of LED luminaries, as well as a standardized definition of the concept of inrush current of LED luminaries in our country. The authors have developed and practically tested on the method of measuring transient processes at the switching on moment of the lighting devices (LD), allowing objectively characterizing its inrush current. The method for measuring the transient characteristics at the switching on moment, allowing us to define objectively its inrush current, was suggested. The corresponding terms and definitions were presented. Transient processes observed in the LD at the moment of its switching on are systematized and described. The requirements for test equipment for inrush current measurements were presented. The order of tests and the sequence of evaluating their results were written. Analysis features of inrush current pulses and the determined accuracy of the proposed test methodology were shown. Particular attention is paid to the key element of the test setup, which ensures the activation of the start synchronizer unit at the moment of maximum values of the supply voltage. Such strict fixing of currently turning up moment allows us to minimize measurement errors and to ensure permissible reproducibility of results. It is concluded that after method certification and its inclusion in the list of recommendations for use as a standard document, it will become possible to identify the necessary parameters of LD inrush current pulses what is sufficient for the rational design of power supply systems for illumination installations (II). Thus, the today uncertain situation in the issue of measuring inrush currents will disappear. In addition, while maintaining uniformity in the approach, the technique will allow us to form statistics by real values of inrush currents in electrical systems of II supply on real objects and already on its basis to establish quality criteria for inrush currents values of certain types of II.

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Applied aspects of accounting for the colour non-uniformity of the radiation of LED luminaries (LL), as their technical and operational characteristics, are considered. At the same time, the features of the perception of colour non-uniformity, created by LL in the observer’s field of view on the object, during their long-term operation at different radiation angles in space and on the surface, are shown. The need for a standard that regulates the methodology for assessing colour non-uniformity and the corresponding criteria is indicated. The necessity of including the colour non-uniformity of the radiation of LL in the list of controlled characteristics during the production and operation of these products is shown.

Photobiological safety has become an integral part of safety requirements to general use luminaires including during certification. In that context, the necessity to control this parameter in the course of designing and manufacturing of lighting devices (luminaires) as well as sales of imported devices in the Russian market has increased dramatically. In the meantime, experimental assessment of this indicator in accordance with requirements of IEC62471Р¦2013 standard is rather hard requiring application of special equipment and certified personnel. This circumstance makes operating control of photobiological safety by manufacturers almost impossible. The foreign practice of application photobiological safety-related standards confirms this problem. In 2014, International Electrotechnical Commission has published a handbook for application of the standard provisions, which significantly simplifies the procedure of such assessments: IEC/ TR62778:2014. The article describes the method of application of provisions of this handbook as an operating tool in the course of development of general use LED luminaires with white light LED. The provisions consist of assessment of hazard level in terms of illuminance in the area of the most possible location of a spectator and colour characteristics of a light source. A calculation method of risk level assessment on the basis of spatial light distribution and correlated colour temperature of LED luminaires is proposed, the results of calculations are compared with the results of laboratory testing.