Brooks ALARM 2000 - 12 Appendices; Appendix A Battery Calculation

Site Manual
Alarm 2000 Iss 5
56
12 APPENDICES
12.1 APPENDIX “A” BATTERY CALCULATION
Example:
An automated battery calculations spreadsheet is available from BROOKS. Please
contact BROOKS Sales.
26-Oct-17
Project: Job No.
RFP
QTY Quiescent (A) Alarm (A)
Basic Alarm 2000 System, Main Control Module 0.020 0.120
Sprinkler Module 1 0.020 0.150
Ancillary Control Module 1 0.005 0.175
Manual Override Module 1 0.001 0.025
Number of Door Strikes 1 0.060 0.000
Gas Shutdown Module 1 1.667 0.067
Power Supply Supervision Module 1 0.051 0.051
Current Drain of Miscellaneous Ancillaries in Alarm 0.000
Total System Current (A) 1.824 0.588
Back up Time Required in Quiescent (decimal) 4.000
Back up Time Required in Alarm (decimal) 1.000
Fire Panel Battery Requirements (A/h) Inc. +25% 9.855
Fire Panel Power Supply Requirements (A) 2.235
Combined System Battery Requirements (A/h) Inc. +25% 12.090 Select
Nearest Standard Battery Size (A/h) -0.7% 12.0 X
Next Largest Standard Battery Size (A/h) -0.7% 12.0
Battery Calculation
{(Total "Q" Current x "Q" Back up Time) + 2 x (Total "A" Current x "A" Back up Time)} x 1.25
"Q" : Quiescent
"A" : Alarm
Alarm 2000 Power Supply & Battery Calculations
Use of this form:
Complete the sections highlighted to calculated battery size required. Suggested
battery size will be marked 'X' .
Complete quiescent back up time (4-24 Hours) and alarm back up (0.5 Hour)