NOTE: This is an unformatted excerpt from our online fire protection training library.
Power Supplies
Sample battery calculation for alarm mode
System Component
Alarm Current (Amps)
Quantity
Total for Components (Amps)
Control Panel
2.8
1
2.8
Duct Smoke Detectors
0.0025
0
0
Area Smoke Detectors
0.0018
6
0.01
Waterflow Switches
0
1
0
Horns
0.09
11
0.99
Horn/strobes
0.15
13
1.95
Total Alarm Current
5.75 Amps
© Hughes Associates,Inc. 2012
NOTE: This is an unformatted excerpt from our online fire protection training library.