Relationship between calculation areas
The requirements in the standard mainly relate to the actual working area. The lighting outside of the working area shall then be adapted to the conditions that apply within the working area. In the new standard, the relationship between these is clearer.
Lighting of working areas
A working area is defined according to EN 12464-1 as the part of the workplace at which tasks are performed. For areas where the size and/or placement of the working area is unknown, the area where the tasks are to be performed shall be considered as the working area.
Lighting of immediate surrounding area
Lighting of the immediate surrounding area shall be related to the lighting level within the working area and in addition create the conditions for well-balanced luminance distribution within the normal field of vision.
Lighting of peripheral surrounding area
There are no defined requirements in Ljus & Rum for illuminance within the peripheral surrounding area, i.e. the area outside of the immediate surrounding area.
Ratio of illuminance and uniformity requirements
Ratios between different illuminances and uniformity requirements.