Appendix B - Power Supply
Installation Handbook, AutroSafe Interactive Fire Detection System, Release 4, 116-P-ASAFE-INSTALL/DGB Rev. I, 2014-04-01,
Autronica Fire and Security AS
Page 78
15.5 Batteries
The recommended cable parameter for BSF-400 is minimum 1,5mm
2
/
15,4 AWG.
There is no minimum requirement for drawing power.
15.5.1 Power Unit BPS-405
The inputs for the battery and the charger are specified to handle up
to 10A. The fuses, F7 battery and F8 Charger, shall have 5A fuses.
Batteries that are to be used with BSF-400 are Fiamm batteries with
the maximum size of 18Ah. The minimum size of batteries if batteries
are connected is 7,2Ah.
The maximum current that may be drawn from the batteries when the
primary power source is disconnected is 5A for BPS-405.
There is no minimum requirement for drawing power. The maximum
power that may be drawn from BPS-405 is 3A.
I max A
Maximum battery current output when
mains disconnected
The maximum internal resistance for a battery connected to a
BSF-400 is 0,8Ω, any higher resistance than this will be detected as a
fault in the battery by BSF-400.
NOTE:
If power to the system is supplied exclusively from the batteries (in
case of a power supply failure), and the voltage is below 19V, the
Power Board BSF-400 will perform a controlled shutdown (i.e. the
power is switched OFF).
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