Server rooms hold sensitive equipment, so protection must limit damage to the equipment and data. Water mist is an option that can be considered for some server rooms, depending on the design. It uses far less water than conventional sprinklers.
How does the system work?
- Detectors sense smoke or heat.
- Audible and visual alarms operate.
- Water mist is discharged from nozzles designed for the space and directed at the fire source.
- The technical office sets the discharge rate and duration according to the design.
What should be inspected regularly?
- Detectors: function tests and cleaning.
- Nozzles and pipework: condition and freedom from blockage.
- Water supply and pumps: readiness to operate.
- Control panel: status and batteries.
- Signage and training: staff awareness of the procedure.
Does the room need to be evacuated?
Water mist does not cause asphyxiation the way some gases do, so the pre-discharge delay and evacuation requirements that apply to gas systems do not automatically apply to it. The room still needs a clear alarm procedure, warning signs and staff training, and the technical study defines what is needed based on the design and occupancy.
Common mistakes
- Dirty or faulty detectors.
- Blocked nozzles or uninspected pipework.
- Inspections not recorded in a written report.
Frequently asked questions
Can water mist damage equipment?
Damage depends on the system design, the discharge quantity and the equipment. Water mist uses far less water than conventional sprinklers, but it is still a water discharge, so the right protection is set in the technical study.
Does a water mist system need regular inspection?
Yes, like any fire suppression system. The inspection schedule follows the applicable standard and the manufacturer’s recommendations.
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