Honeywell XLS140, Руководство по установке

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XLS140 Installation Manual Form Number 95-7673-3 P/N 51927:C 12/06/2005 75
Calculating the Battery Requirements Power Supply Calculations
A.3 Calculating the Battery Requirements
A.3.1 Calculating the Battery Capacity
Use this table to determine the battery capacity needed for the system:
Current (amps) X Time (hours) = AH
Secondary Non-Fire Alarm Current
(from column 3 in Table A.2)
________________ X
Required Secondary Non-Fire Alarm
Standby Time (24 or 60 hours)
________________ = _________AH
APS-6R
Standby Load Current
________________ X
Required Secondary Non-Fire Alarm
Standby Time (24 or 60 hours)
________________ = _________AH
Secondary Fire Alarm Load
(from Table A.3)
________________ X
Required Fire Alarm Standby Time:
(for 5 minutes, enter 0.084; for 15
minutes, enter 0.25)
________________ = _________AH
Sum Column for Total Secondary Amp Hours calculated = _________AH
Multiply by the derating factor x 1.2 (see Note 7) = _________AH
Battery Size – Total Secondary Amp Hours Required = _________AH
1. NFPA 72-1999 Local, Proprietary, and Central Station systems requires 24 hours of standby power
followed by 5 minutes in alarm.
2. NFPA 72-1999 Auxiliary and Remote Station Systems require 60 hours or standby power followed by
5 minutes in alarm.
3. Batteries installed in a system powered by an automatic starting engine generator need to provide at
least 4 hours of standby power.
4. Factory Mutual requires 90 hours of standby for deluge-preaction systems.
5. Emergency voice/alarm communications systems require 2 hours of operation in the alarm condition.
Due to the sporadic nature of voice operation, however, NFPA 72-1999 permits 15 minutes of operation
at a maximum connected load to equal 2 hours of normal use.
6. If the total exceeds 25 AH, the system requires a separate XLS-LBB battery enclosure for two
BAT-12550, 55 AH batteries in a separate XLS-LBB enclosure. If the total exceeds 55 AH, the system
requires an auxiliary battery charger with sufficient amp-hour capacity; this charger must be UL-listed for
Fire-Protective Signaling. If CHG-120 battery charger is used, it requires a second XLS-LBB enclosure.
7. The following battery derating factors must be used for Canadian installations using XLS140 charger:
• For a 12 AH battery, use derating factor of 1.2
• For a 25 AH battery, use derating factor of 1.5
• For a 55 AH battery, use derating factor of 1.8
When batteries are charged by CHG-120 charger use a derating factor of 1.2 for 25 AH and 55 AH
batteries.
Table A.4 Secondary Power Standby and Fire Alarm Load