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The study of outdoor lighting led luminaires parameters for their compliance with the recommendations of preventing light pollution of the environment

The study of outdoor lighting led luminaires parameters for their compliance with the recommendations of preventing light pollution of the environment

ISSN 2223-6775 Ukrainian journal of occupational health Vol.20, No 4, 2024

https://doi.org/10.33573/ujoh2024.04.316

The study of outdoor lighting led luminaires parameters for their compliance with the recommendations of preventing light pollution of the environment

Sorokin V.M.1, Kozhushko H.M.2, Nazarenko V.I.3, Pekur D.V.1, Shpak S.V.4, Basova Yu.O.5

1 Lashkaryov Institute of Semiconductor Physics of the National Academy of Sciences of Ukraine, Kyiv

2 National University "Yuri Kondratyuk Poltava Polytechnic ", Poltava

3 State institution “Kundiiev Institute of Occupational Health of the National Academy of Medical Sciences of Ukraine”, Kyiv

4 State enterprise "Poltava Regional Scientific and Technical Center of standardization, metrology and certification", Poltava

5 Poltava State Agrarian University, Poltava

Introduction:

The possibility of the effect of outdoor lighting on the level of light pollution of the environment and its features, which is created by LED lighting systems, is considered. A specific property of LEDs , which are used in outdoor lighting systems, is intense radiation in the blue region of the spectrum, which coincides with the spectrum of melatonin suppression and affects the disruption of biological rhythms of living organisms at night. Among the negative effects that can be created by LED lighting systems are brightness flickering and blinding discomfort due to the high brightness of LEDs.

The aim of the Study

To determine the parameters of LED lamps used in outdoor lighting systems from the point of view of their compliance with the recommendations of DSTU EN 12464-2 and the International Organization for the Preservation of the Dark Sky (IDA).

Materials and Methods:

The following parameters of lamps for outdoor lighting entering the market of Ukraine were investigated: the amount of luminous flux and its spatial distribution, including in the upper hemisphere and in the zone of potential glare (80-90 degrees); light intensity curves, including the maximum value and within angles of 80-90 degrees; colorimetric parameters (correlated color temperature, general color rendering index). Tests on the photobiological safety of blue light, as well as flickering brightness and visibility of the stroboscopic effect were carried out for individual lamps.

Results:

It is shown that the light output of LED lamps for outdoor lighting is about 20% greater than the light output of lamps with high-pressure sodium lamps. At the same time, they have a complete absence of radiation to the upper hemisphere and almost 2 times smaller values of light intensity emitted within angles of 80-90°. The disadvantage of the investigated lamps is their non-compliance with the recommendations of DSTU EN 12464-2 and IDA regarding the limitation of correlated color temperature values - in most lamps, this indicator is higher than 3000 K.

Conclusions:

The lighting parameters of outdoor lighting fixtures meet the requirements of DSTU 8546:2015 and DSTU EN 12464-2. Parameters of flickering brightness and visibility of the stroboscopic effect compliance with the requirements of the EU Commission Regulation 2019/2020. Blue light hazard risk levels, even under the most adverse conditions, do not exceed risk group RG1. In order to meet the needs of Ukraine with LED lamps with correlated color temperatures not higher than 3000 K, it is proposed to make appropriate changes to the national standards DSTU 8546:2015 and the State Building Regulations of Ukraine DBN V.2.5-28:2018

Keywords: luminaires, LED lighting system, outdoor lighting, light intensity curves, correlated color temperature, radiation spectrum, light pollution, biological rhythms.

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