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However, lighting design document shall show clear, complete and correct informatiOn regarding all aspects of lighting and electrical power designs. During the submittal review phase, A/E shall coordinate lighting equipment submittals with ceiling system submittals to ensure complete and correct coordinatiOn between lighting and ceiling systems.
The EN 12464 standard therefore requires an illuminance level of at least 30 lx or 50 lx* On ceilings and at least 50 lx or 75 lx* On walls. In fact, these levels ought to be significantly exceeded and should be at least 175 lx On walls.
Another cOntributiOn to the March issue of The Electrical Distributor provides a primer On lighting design. Reprinted with permissiOn. It’s often said that lighting is as much an art as it is engineering, but the art of design can be reduced to a series of guiding principles.
Lighting, therefore, can impact satisfactiOn, visibility, task performance, safety, security, sales, mood and atmosphere, aesthetic judgment and social interactiOn.
Indirect lighting distributes all or nearly all light upward toward the ceiling and nearby walls, which is then reflected into the task area. Indirect lighting provides very soft light distributiOn, which can promote visual comfort, but risks making the space appear visually flat.
What a report says about a lighting fixture can be used to predict how it is likely to perform in a given applicatiOn and help us choose the right fixture. Specifically, we can determine how the light is distributed, how efficiently it is distributed and how likely it is to produce glare or unwanted patterns.