Table of Contents
Advertisement
9.
BATTERY MAINTENANCE
Perform the following tests at the recommended
interval. Replace the battery set every four years
or if any of the test criteria are not met.
Initiation / Reacceptance
1. Charger Test—With the batteries fully
charged and connected to the charger,
measure the voltage across the battery set. It
must read 27.3V +/- 0.3V.
2. Discharge Test—With full system alarm load,
the voltage on a fully charged battery must
not fall below 20.4V after 30 minutes.
3. Load Voltage Test—With full system alarm
load, the voltage on a fully charged battery
must not fall below 24.6V after one minute.
Testing Interval
1. Semiannually—Perform the Load Voltage
Test.
2. Annually—Perform the Charger Test and
Discharge Test.
PAD-4 Installation, Operation and Maintenance Manual
10. GLOSSARY
Alarm Signal. A signal that indicates the pres-
ence of an emergency requiring immediate
action, such as an alarm for fire from a manual
station, a waterflow alarm, or an automatic
smoke detector.
Alarm System. A combination of compatible
initiating devices, control units, and notification
appliances designed and installed to produce an
alarm signal in the event of a fire.
Audible Signal. A sound made by one or more
audible notification appliances, such as bells or
horns, in response to the operation of an initiat-
ing device.
Authority Having Jurisdiction (AHJ). The
organization, office, or individual responsible for
approving equipment, installations or proce-
dures.
CO Alarm. Carbon Monoxide alarms.
Class A Circuit. An initiating device or notifica-
tion appliance circuit in which all components
remain fully functional when a single open or
ground exists in the circuit.
Class B Circuit. An initiating device or notifica-
tion appliance circuit in which some or all compo-
nents may be disabled when a single open or
ground exists in the circuit.
End Of Line (EOL). A device used to terminate a
supervised circuit.
General Alarm. A term usually applied to the
simultaneous operation of all the notification
appliances on a system.
Ground Fault. A trouble condition in which a low
resistance has been detected between the
system wiring and earth ground.
Initiating Device Circuit (IDC). A circuit to which
initiating devices are connected.
Labeled. Equipment or materials to which a
label, symbol, or other identifying mark of an
organization acceptable to the AHJ and con-
cerned with product evaluation has been at-
tached. The organization's label indicates that
the manufacturer complies with appropriate
standards, performs in a specified manner and
47
Hide quick links:
Advertisement
Table of Contents
