![]() ![]() A band of at least 3 m is considered adjacent to the immediate surrounding area. A band of at least 0,5 m around the task area shall be considered Ī zone (C) adjacent to the immediate surrounding area (background zone). a band (B) surrounding the task zone within the field of vision (immediate surrounding zone).a zone (A) within which the task is carried out (task zone).In particular, the following are defined: The standard lays down precise requirements for the illuminance of the workstation and the surrounding area. In fact, due to the reduction of the emission of the sources or to the dirt accumulated on the surfaces of reflectors or refractors, the flux is reduced over time compared to the initial value (new system). We speak more precisely of "average maintained illuminance" values this term refers to the minimum illuminance value that can be measured when the installation requires maintenance due to the decay of the luminous flux. It is a quantitative parameter that represents the density of light power per unit area. Illuminance is a basic requirement for perceiving the visual task and performing it quickly, safely and comfortably it is a quantitative parameter representing the light power density per unit area. Illuminance in the area of the visual task colour rendering and colour appearance of light.directionality of light and illumination of the interior space.the workstation is the combination and spatial arrangement of the work equipment, surrounded by the work environment under the conditions imposed by the work tasks (EN ISO 6385:2004).Ī number of parameters contribute to the characterisation of the lighting environment such as:.the workplace is intended to house workstations on the premises of the undertaking and/or establishment and any other place of work within the area of the undertaking and/or establishment to which the worker has access in the course of his work (Directive 89/654/EEC).The standard takes up and adapts already recognised definitions: The standard also highlights a highly topical issue: people receive positive stimuli and perceive greater well-being when lighting conditions can be varied over time not only in terms of illuminance and luminance distribution, but also in terms of the colour temperature range. The standard considers all customary visual tasks, with a particular focus on those performed at workstations with display screen equipment.Īn important aspect of the EN 12464-1 standard is to consider the combination of quantitative and qualitative aspects, while emphasising the importance of light for people's health and well-being. In particular, the standard specifies what the lighting requirements are for people - with normal visual capacity and working at indoor workstations - that correspond to the needs of visual comfort and visual performance. The UNI EN 12464-1 standard deals with the issue of how to provide adequate and appropriate lighting for people who carry out visual tasks in the performance of their work.
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