Control rooms

The design and layout of control rooms is a scientific research field in its own right. Here, operators often work night shifts watching the operative state of plant equipment. A careful balance between activating light to increase alertness, and non-activating light to help adjusting daily rhythms is needed as well as sufficient light levels to read documents and understand operating panels efficiently.
The barrier between information need and information overload on screens and information systems is very delicate. Too little information will not reveal the real state and performance of the operating equipment, whereas too many blinking lights will confuse the operator. Research on control room environments show that most accidents happen during the night shifts and especially the last hours during those shifts. The control room lighting plays a role in illuminating the most important parts of the panels, with the correct lighting level and when needed.

In addition, lighting plays an important role in controlling the operator’s daily rhythms. Depending on the shift cycle, tuneable white luminaires may help the operator shift his or her inner clock so it matches a night shift schedule, or even avoid switching over to one and therefore remain on a day cycle, also when working at night. Both scenarios require a careful control over the intensity and duration of the tuneable white light. Light also has a short-term attention-driving effect. By boosting light intensity levels and colour temperature in short periods of time, often at the end of the night shift, the operator may experience alertness increases and thereby avoid concentration slips and accidents.

Lighting requirements in EN 12464-1



General areas inside buildings - Control rooms

Type of area, task or activity
 Lux-level (Em)
Glare rating (UGRL
 Uniformity
(U0)
 Colour rendition
(Ra)
 Specific requirements
Plant rooms, switch gear rooms
200
25
0,40
60

Telex, post room, switchboard  500 19 0,60 80  


For power stations

Type of area, task or activity
 Lux-level (Em)
Glare rating (UGRL
 Uniformity
(U0)
 Colour rendition
(Ra)
 Specific requirements
Control rooms
500
16
0,70
80
1. Control panels are
often vertical.
2. Dimming may be
required.
3. DSE-work


Products »