Fire Alarm System Types
Fire Alarm Systems start with the simplest being a local Alarm Bell triggered by water flowing in an activated Sprinkler System. (NFPA 13 requires)
Features may be added to expand effectiveness when notifying people of an alarm condition, including local monitoring at a guard shack or office and monitoring by a remote or central station off premises. (NFPA 72 details)
Features may be added to expand effectiveness of detection to provide early warning as with Heat or Smoke Detectors. For instance, Alarm Check Valves are used to allow a sprinkler to trigger the alarm and delay water flow for short duration (Simple Preaction System). Sample Slide Show System & Alarm
Features can be added to minimize property water damage by having early detection devices interact with the sprinkler or suppression system to prevent discharge during false alarms or conditions that can by controlled without a water suppression system discharge (Double Interlock Preaction System). Chemicals other than water, such as foam and gases can be used as the extinguishing agent.
Some types of buildings or building usages may require a simple Horn and Strobe to Notify occupants that the Sprinkler System is flowing water. Other types and usage may require a variety of sounding and lighting devices to fully alert and assist occupants in evacuating the building. VES Systems Overview
Additionally, web based monitoring software can provide instant status reports to Owners, Managers and Service Companies as well as providing expanded location information to the Monitoring Company and local Fire Authority during alarm conditions. VES Virtual Panel (See your Control Panel on your PC)
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