ABCDEFGHIJKLMNOPQRSTUVWXYZAAABACADAEAFAGAHAI
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11/1/2019
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7/19/2011v6a
Updated 116DEGEX 24Vfwr current
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Current Totals from Load NAC1 =
0
amps FWR
8/10/2011v6b
Added w.p. Genesis speaker strobes
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Current Totals from Load NAC1 =
0amps DC5/2/2012v7 draft
Changed dB calc to allow diff. audio voltages
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7/1/2013v7 draft
Added w.p. Genesis horn strobes
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Current Totals from Load NAC2 =
0
amps FWR
7/1/2013v7 Released
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Current Totals from Load NAC2 =
0amps DC4/24/2014v7a draft
Added low freq. Genesis
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6/24/2014v8Released
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Current Totals from Load NAC3 =
0
amps FWR
Added 5553 haz loc speaker
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Current Totals from Load NAC3 =
0amps DC10/26/2015v9 draft
Added FX panels
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8/29/2016
Added HF speakers
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Current Totals from Load NAC4 =
0
amps FWR
10/31/2016FX v1
Removed E- panel references and renamed FX
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Current Totals from Load NAC4 =
0amps DC
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6/20/2019
FX v4a DRAFT
Added EG4 and EGC low current LED devices.
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Enter values in yellow boxes.
Results in blue.
Current Totals from Load SpkrStrb =
0
amps FWR
11/1/2019v4a draft
Changed BPS source v to 19.7 per tech bul. from 11/1/10
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Refer to above load factors and source voltages for Edwards - Kidde panels.
Current Totals from Load SpkrStrb =
0amps DC11/5/2019v4a
Hid EG4 LED devices.
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Released
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Total Current =
0
amps FWR
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Total Current =
0amps DC
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Wire Distances for 24V Notification Appliance Circuits
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NAC1NAC2NAC3NAC4
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Enter total operating current (amps)
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Enter load factorx
(Enter 0 if unknown)
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Load voltage drop=0000
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Enter source voltage
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Load voltage drop-0000
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Minimum voltage=0000
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Enter min. device operating voltage-
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Voltage drop=0000
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Total operating current /
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Maximum resistance=
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Enter wire resistance (ohms/ft) /
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Maximum wire length (ft)=(Single wire)
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 /2222
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Maximum cable length (ft)=(Pair of wires)
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Audio Wiring Distance, dB Loss
Audio Wiring Distance
Wattage Totals (from Load SpkrStrb) =
0watts
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Enter audio voltage (Vrms)
Enter audio voltage (Vrms)
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Enter wire guage
Enter wire gauge
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Enter wire resistance (ohms/ft)
Enter wire resistance (ohms/ft)
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Enter speaker load (in watts)
Enter speaker load (in watts)
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Enter cable length (in feet)
Maximum cable length (ft)
0
Based on -1.0dB loss
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dB loss0.0
Maximum cable length (ft)
0
Based on -0.5dB loss
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(See note 4)
(See note 4)
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dB Change vs Distance
dB Change vs Wattage
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Enter dB rating at starting distance
Enter starting dB
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Enter starting distance (10 ft typical)
Enter starting wattage
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Enter new distance (in feet)
Enter new wattage
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New dB0.0New dB0.0
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(See note 5)
(See note 5)
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dB Change vs Audio Voltage
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Enter speaker voltage
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Enter amplifier voltage
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dB loss0.0
(See note 6)
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Distance Conversions
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Miles
Kilometers
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Kilometers0Miles0