- Author
-
Fire Safety Engineering
- Title
- Gas Extinguishing Alarms: Commencing Countdown.
- Journal
-
Fire Safety Engineering,
Vol. 15,
No. 1,
20-20,
February 2008
- Keywords
-
fire alarm systems
|
extinguishing
|
standards
|
occupants
|
gas detectors
- Identifiers
- alarm sequence for total flood extinguishing systems; European and international standards; programmable sounders were interfaced with the extinguishing panel; single detector has operated, and that action is required; two or more detectors have operated and is known as 'coincidence' alarm; different frequency of pulse; with a constant tone, confirms that the gas has been discharged