Lighting

Proper lighting is required to normally operate the server and when service is required.

Light sources in the equipment room and work station areas should have a general lighting level of 300 to 500 lumens/m² (lux) or 30 to 50 foot-candles. When preparing the equipment room and work areas, consider painting the room a light color with a white ceiling to reflect (rather than absorb) light. To lessen any glare, windows should not be in an operator's field of vision or directly facing the display screen. Direct sunlight can cause light-sensing devices to malfunction and make observations of various signal lamps difficult.

To avoid eye fatigue, light sources should be compatible. Universal white fluorescent lamps are compatible with both incandescent lamps and daylight.

The following figure shows a suggested lighting layout for a workstation.

Figure 1. Typical lighting for a workstation

Provide and maintain emergency lighting, of sufficient intensity, to ensure a safe exit.