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6.1.4 AV-AMP-80 Battery Calculations
Quiescent Load Alarm Load
Equipment I (A) x Total I (A) x Total
AV-AMP-80 0.035 1.0 = 0.035 0.220 1.0 = 0.220
Amplifier 1
33
1.0 =
Amplifier 2
33
1.0 =
Total
Quiescent Load
=
Alarm Load
=
x 24 hr or 60 hr
Ah
x 0.0833
34
hr
Total Quiescent Current
Ah
Total Alarm Current
Ah
Total Load (Quiescent + Alarm)
Ah
Total Load x 1.20 (battery de-rating factor) Ah
Converting Watts to Amps:
Utilizing Ohm’s Law (Amps = Watts / Volts), convert amplifier wattage to amperes.
i.e.: maximum load per amplifier 40 Watts
Amps = 40w / 24vdc
Amps = 1.66666666 (1.7)
33
Add total speaker circuit load of each amplifier, 40 watts maximum per amplifier.
34
5 minutes in alarm, change to .166 for 10 minutes in alarm.
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