The Design and Organization of Data Centers/Fire Protection

Fire alarms systems are designed to detect and notify building occupants of a possible fire condition, so that proper reactive steps can be taken. Some examples of fire alarm equipment include the following: Smoke Detectors Heat Detectors Beam Detectors Pull Stations Sprinkler System Monitoring Equipment Audible and/or Visual Notification Appliances Sprinkler systems Water and computers don't mix. A damaged sprinkler head will spray water regardless of a fire, and smoke detectors can be set off by dust. Avoid sprinkler systems that hold water, instead use a pre-action sprinkler system, preferably a double-interlocked pre-action system. With a double-interlocking pre-action valve, water is prevented from entering the sprinkler piping until two different kinds of heat/smoke detecting devices trigger the valve to open. The typical devices used are pneumatic actuation by a sprinkler head activating and releasing pressurized air stored in the piping and an electric actuation from heat or smoke detectors. Gas Suppression Halon Not used any more FM200 Energen More expensive, but free refills, non-toxic May require separate under-floor nozzles, and ceiling tiles restrained with clips. Fire Extinguishers Special fire extinguishers Low residue Expensive Power and Air conditioning issues Emergency shut off for power and air conditioning Very Important stuff. sci.engr.heat-vent-ac newsgroup Free online HVAC heat load calculator