ZP3 Fire Control Panel Installation, Commissioning and Maintenance Manual
Page 50
REV 11 (ISS 08/03/2010)
Power supply and battery calculations
Two power supply calculations must be done when designing a ZP3 system. Firstly, the capacity
of the power supply must be calculated to ensure that it will be able to supply the system load,
even when the batteries are disconnected or discharged.
Table 5: ZP3 System load calculation
C1 C2
C3
C4
C5 C6
C7
Device
Unit
quiescent
current
(Amps)
Unit
fire
alarm
current
(Amps)
Qty Total
quiescent
current
(Amps)
(C3 x C5)
Total
alarm
current
(Amps)
(C4 x C5)
ZP3AB-SCB-D Control bus driver
0.0400
0.0400
ZP3AB-Net1 Network card
0.0700
0.0700
ZP3AB-RS232 Comms card
0.0650
0.0650
ZP3AB-PR1 Printer
0.0370
0.1900
ZP3AB-RL8 Relay board
0.0350
0.1300
ZP3AB-MA8 Sounder board
0.0400
0.2200
ZP3AB-OP24 Output board
0.0010
0.0500
Panel an
d accessor
ies
ZP3AB-MIP8 Input board
0.0400
0.0600
ZP700 sensors (all types) 0.0005
0.0006
ZP700 Loop I/O units (all)
0.0005
0.0006
ZP700 Call points (all types) 0.0005
0.0006
ZP755 Loop sounder
0.0005
0.0025
ZP570 Conventional i/f 0.1000
0.1000
ZP471 Radio loop interface
0.0400
0.0400
ZP472 Radio loop interface
0.0400
0.1000
ZP3-ECU Extinguishing control units
0.0800
0.2000
Line devices
Conventional detectors (all types) 0.0001
0.0000
Alarm bells
0.0000
0.0500
Alarm
s
Electronic sounders
0.0000
0.0250
Ot
her
Total system load:
Quiescent
load
Fire
alarm
load
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