Alarms & Sprinklers Flashcards
What are the types of smoke detectors?
Point type (ionization, photoelectric)
Beam type
Air Sampling type
Household type
What are the common causes of false alarms
Welding, Cutting, Grinding
Rainwater in detector
Improper installation
Battery failure
Sprinkler heads broken
Advantages of photoelectric smoke detectors
- Provide early fire warning
- Sensitive to slow burning, smoldering fires
- Not affected by moving air
Disadvantages of photoelectric smoke detectors
- Higher current consumption than ionization detectors
- Less sensitive to flaming fires than ionization detectors
What is the function of the fire indicator panel? (FIP)
It contains the controls and indicators of various fire detection and suppression systems in a building
FIP
Fire indicator panel
LWG
Local warning gong
ASE
Alarm signaling equipment
VMA
Valve Monitor Alarm
DBA
Direct Brigade Alarm
MCP
Manual Call Point
BGA
Break Glass Alarm
WIP
Wardens Intercommunication Point
RAD
Return Air Duct