FlameStop FDCIE Panels With AS4428.3-2010 Fascia
Installation and Operation Manual
Page 33
Chapter 5 Calculation of Batteries Capacity
The formula for calculating batteries capacity in accordance with AS 1670.1-2004 is as follows:
C
20
= 1.25 [(I
Q
x T
Q
) + F
C
(I
A
x T
A
)]
Where:
C
20
= battery capacity in Ah at 20 h discharge rate
I
Q
= total quiescent current
T
Q
= quiescent standby power source time, (normally 24 h)
F
C
= capacity de-rating factor
I
A
= total current in alarm state
T
A
= alarm load standby power source time (normally 0.5 h)
1.25 = compensation factor for expected battery deterioration
Where the load may vary, the worse case average over required period shall be used
Here are some default values on the FlameStop equipment used for calculations.
Model
Quiescent Current (Amps)
Alarm Current (Amps)
Panels
PFS102-AUS 0.045
0.046
PFS102-AUS-LRG 0.045 0.046
PFS104-AUS 0.05
0.051
PFS104-AUS-LRG 0.05 0.051
PFS108-AUS 0.08
0.081
PFS108-AUS-LRG 0.08 0.081
PFS116-AUS 0.1
0.101
PFS116-AUS-LRG 0.1 0.101
Detectors
PHC-9102 0.00006
0.055
PHC-9103 0.00006
0.055
PXDC-9204 0A
0.030
