Fire Detection System Flashcards
1
Q
Types of detectors
A
Ionisation smoke detector Heat detector Infrared ultraviolet detector Photoelectric detector Toxic gas detector
2
Q
Conventional fire detector system
A
Building divided in zones One pair of wires to connect the detectors of the zone Detector can trigger the fire alarm Only reports the fire zone of a zone Firemen are required Not suitable for large buildings
3
Q
Addressable fire detection system
A
Each sensing element or control element is mounted on a module which is coded a unique address in the system
4 wire cable run through each loop
Wire sends swipes
4
Q
Advantages of addressable fire detection system
A
Intelligent fire detection system Determine true or false alarm Estimate strength of the fire Estimate toxicity of the gases Detect fire at its early stage
5
Q
Manual fire alarm system
A
Used by occupants, break the break glass to activate the alarm, no reset, located together with hose reel and alarm bell
