Battery Size
Total Standby
Current
(from above)
Hours of Standby
Required per NFPA 72
Standard
(4, 24 or 90)
AH for
Standby
A X Hours
=
Total Alarm
Current
(from above)
5 Minutes of Alarm
Operation
per NFPA 72 Standard
AH for Alarm
A X Hours
=
A.H. for
Standby
A.H. for
Alarm
Calculated
A.H.
De-rating
Factor
A.H.
Required
Battery
Capacity
+
=
X 1.1
=
Notes:
An additional multiplier is included to compensate for the higher discharge rate in alarm.
Battery capacity decreases with age.
51
Содержание FC901-R3
Страница 2: ......
Страница 3: ......
Страница 7: ......
Страница 32: ...FC901 Enclosure Mounting Pictures 25 ...
Страница 55: ...This page is left intentionally blank 48 ...