Ergonomic Architecture for Command & Control Centers

Lighting Design

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LIGHTING DESIGN: the real success of a well-designed control building rests on attention to details, such as the design and installation of lighting and interior finishes. Lighting at the consoles should be arranged to eliminate glare and reflections in the VDU screens.


Each operator should have independent control over the illumination level for his console. CRD prepares a detailed 'glare & reflection study' based upon the particular console type specified, as a basis for final light fixture placement and dimming, as shown above, in the lighting plan for Valero's Texas City refinery.


Certain console manufacturers, like Evans, offer task lighting to further supplement the overhead lighting (in situations where ceiling fixtures cannot be perfectly located). In all cases, however, it is important to: eliminate all reflections on the screens by NOT positioning overhead luminaires behind the consoles; avoid forward-looking 'direct glare' produced by flat diffusers on fluorescent fixtures; provide capability of dimming down to levels approximately 150 to 350 lux (15-35 ft. candles) for periods of monitoring or during normal operation.


With flat-screen based consoles, such as these for Dominion Power, CRD developed lighting that precisely illuminated the worksurfaces, yet allows the screens to fall in semi-shade/shadow.  It is key to provide dimmer controls for each Operator so they have the ability to adjust lighting levels.