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Reference · Design

Standby (Supervisory) Current

Current drawn by the panel and all connected devices in the normal, non-alarm condition. Multiplied by the standby hours in a battery calculation.

NFPA 72: 10.6.7.2

Section numbers vary by edition — confirm in the edition your AHJ has adopted.

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Read more in these guides

Fire Alarm Battery (Standby) Calculation BasicsSecondary batteries keep a fire alarm running when the power fails. Here's how standby battery sizing works, in plain language.

Related terms

Candela (cd)A-weighted Decibel (dBA)Manual Fire Alarm Box (Pull Station)Secondary Power SupplyAlarm CurrentElevator Recall
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