B

Areas within Work places, particularly ones with insufficient daylight supply which are directly adjacent to the immediate Surrounding area, also need to be illuminated appropriately. In accordance with EN 12464-1, these background areas must be illuminated to a minimum width of 3.0 m with at least 1/3 of the Maintained illuminance of the immediate surrounding area and with a minimum Uniformity U₀ of 0.10.

For use in sports halls, luminaires as well as their accessories such as trunking or suspension materials must be ball-proof. Test conditions for ball impact safety are described in DIN 18032-3 “Halls for gymnastics, games and multi-purpose use, testing of safety for ball impact” and in DIN 57710-13 “Luminaires with operating voltages below 1.000 V; luminaires ball impact safety” (see also chapter ball impact safety).