The standard values for service illuminance (Em [Lux]), color appearance (F), color rendering group (Ra), and unified glare restriction class (UGRL) according to EN 12464-1 are listed in the table for the various types of interior or activity. The ratings for service illuminance, color rendering group, and direct glare restriction class represent minimum values to be met by the lighting system.
|
Interiors / Activities |
Em[lx] |
F |
Ra |
UGRL |
|
Hammer-forging small part |
200 |
ww, nw |
60 |
25 |
|
Drop-forging |
300 |
ww, nw |
60 |
25 |
|
Welding |
300 |
ww, nw |
60 |
25 |
|
Rough and medium-accuracy machining, max. tolerance > 0.1 mm |
300 |
ww, nw |
60 |
25 |
|
Precision machining, max. tolerance < 0.1 mm |
500 |
ww, nw |
60 |
19 |
|
Marking, checking, measuring |
750 |
ww, nw |
60 |
19 |
|
Wire and tube drawing mills, cold strip production |
300 |
ww, nw |
60 |
25 |
|
Sheet metal working: thickness > 5 mm |
200 |
ww, nw |
60 |
25 |
|
Sheet metal working: thickness < 5 mm |
300 |
ww, nw |
60 |
22 |
|
Production of small tools and cutlery |
750 |
ww, nw |
60 |
19 |
|
Assembly - rough - medium - fine - very fine |
200 300 500 750 |
ww, nw |
80 |
25 25 22 19 |
| Electroplate |
300 |
ww, nw |
80 |
25 |
| Surface finishing and painting |
750 |
ww, nw |
80 |
25 |
| Toolmaking, construction of jigs and fixtures, templates, precision engineering, precision assembly work |
1000 |
ww, nw, tw |
80 |
19 |