restoration from emergency to normal power shall be fully automatic and
shall not cause transmission of a false alarm. Loss of AC power shall not
prevent transmission of a signal to station fire alarm headquarters upon
operation of any initiating circuit.
2.1.3.1
Storage Batteries
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NOTE: Consult with the Public Works Department for
battery preference.
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Provide [sealed lead calcium] [or] [sealed lead acid] [or] [vented wet cell
pocket plate nickel cadmium] batteries and charger. Drycell batteries are
not acceptable. House batteries in the control panel or in a well
constructed vented steel cabinet with cylinder lock, non-corrosive base,
and louvered vents. Provide batteries of adequate ampere-hour rating to
operate the system, including audible trouble signal devices, and [master
box] [auxiliary transmitter] tripping circuits under supervisory conditions
for 60 hours, at the end of which time batteries shall be capable of
operating the entire system in a full alarm condition for not less than
[15] [_____] minutes. Provide calculations substantiating the battery
capacity. [If calculations required by the paragraph entitled "Power
Calculations" show that the total supervisory and alarm power requirements
of the modified system exceed the capacity of the existing battery, provide
a new battery as specified herein.] Provide reliable separation between
cells to prevent contact between terminals of adjacent cells and between
battery terminals and other metal parts. When a separate battery cabinet
is used, provide a fuse block for battery leads within the cabinet. Finish
the cabinet on the inside and outside with enamel paint. Locate the top of
the batteries not more than 1.2 m 4 feet above floor level.
2.1.3.2
Battery Charger
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otherwise by the EFD/EFA Fire Protection Engineer.
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Provide completely automatic high/low charging rate type capable of
recovery of the batteries from full discharge to full charge in 24 hours or
indicate the state of battery charge under load. Meters shall be factory
installed, or factory-supplied plug-in modules. Field installation of
meters other than the panel manufacturer's plug-in modules is prohibited.]
Provide a trouble light to indicate when batteries are manually placed on a
high rate of charge as part of the unit assembly if a high-rate switch is
provided. House charger in the control panel or battery cabinet.
2.2
COMPONENT DESIGN
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NOTE: Delete equipment paragraphs not applicable
for the project.
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2.2.1
Control Panel
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SECTION 13852N
Page 18
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