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> > Luz Negra

Luz Negra

60

Luz Negra: Ecoled, 103 109

_ 346 _
Basic lighting concepts
www.luznegra.net
UNE 12464.1
Interior lighting basic guide
When it comes to studying a project, the lighting is of utmost importance
and, as there are many different options and points of light in interior
projects, we must have a CRI (colour rendering index) in order to guarantee
a favourable visual environment.
There are 3 fundamental aspects which we must take into
consideration before choosing a product:
Visual comfort: We must always consider the well-being of the people
in the area and if related to a work space, this indirectly leads to
higher levels of productivity. The luminance relation between task and
environment or glare control provoked by the lighting, are important
aspects to take into account.
Visual benefits: This is where we are capable of carrying out visual tasks even under difficult circumstances and during long periods of time.
Safety: Depending on the surrounding environment and the professional activity which we are carrying out, we must follow the parametre established
in the tables below (according to UNE 12464.1 by the European Committee for Standardisation and under Directive 2002/91/CE) relating to the energy
efficiency of the buildings. This is obligatory in countries which form the European Union.
We require a CRI >80 in the scale of 0 to 100 in order to illuminate spaces where we are to remain a long period of time or permanently, and not just
“passing through” areas like corridors, aisles, etc.
The required values are reflected on the basic tables and specific guidelines which determine the statistical values and this is fundamental when it
comes to choosing the most adequate products for the execution of the final project.
Lighting in different areas according to UNE – EN 12464.1
OFFICES
LUX
UGRL
Ra (CRI)
Archives, photocopying rooms
300
19
80
Meeting rooms
500
19
80
Work stations “computers”
500
19
80
Draftsmen
750
19
80
Receptions
300
22
80
Reading rooms
500
19
80
LIBRARIES
LUX
UGRL
Ra (CRI)
Shelves
200
19
80
Reading areas
500
19
80
Customer services posts
500
19
80
Reading room
LUX
UGRL
Ra (CRI)
Hotels - restaurants
-
-
80
Dining rooms
500
19
80
Corridors
100
25
80
Kitchens
500
25
80
Reception areas
300
22
80
Self-service restaurants
200
22
80
PUBLIC PARKING
LUX
UGRL
Ra (CRI)
Parking areas (interior)
75
-
80
Access ramps or exits (night)
75
25
80
Access ramps or exits (day)
75
25
80
Internal parking lines
75
25
80
Cashier booths
300
19
80
CONCERT HALLS, THEATRES
LUX
UGRL
Ra (CRI)
Rehearsal rooms
300
22
80
Dressing rooms
300
22
80
Cinemas
300
22
80

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