SC Fire Alarm Practice Questions - South Carolina Fire Alarm Contractor Examination Exam

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A non-voice protected-premises system has a standby current of 0.400 A and an alarm current of 2.00 A. Using NFPA 72 (2019) (24 h standby + 5 min alarm) and a 1.20 capacity factor, what is the minimum battery capacity?

9.60 AH 9.77 AH 11.72 AH 12.24 AH

Correct Answer:

11.72 AH

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