The effect of increasing the illumination on operators’ visual performance in the control-room of a combined cycle power plant

Table 1 Average values of general and local illumination and luminance before and after the intervention

Parameters		Average of general illumination in control-room (Lux)	Illumination of working surface1 (Lux)	Luminance of display1 (Cd/m²)	Luminance of working surface1 (Cd/m²)	Illumination of working surface2 (Lux)	Luminance of display2 (Cd/m²)	Luminance of working surface2 (Cd/m²)
Before intervention (first phase)	Day	302	230	6.3	4.2	240	7.1	5.4
Before intervention (first phase)	Night	180	153	0.16	0.12	135	0.05	0.03
After intervention (second Phase)	Day	302	415	15.2	12.9	426	16.2	14.8
After intervention (second Phase)	Night	180	350	0.2	0.18	332	0.13	0.1

ISSN: 2052-4374