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 1.5.3
Standby Battery Power Supply: Standby battery power
supply shall be capable of operating the entire system for 60 hours,
a n d following this period, shall sound all alarm devices for a period
of 5 minutes. Battery charger shall be capable of fully charging
d e - e n e r g i z e d batteries in 42 hours.
1.5.4
Modules: All modules in the FACP shall be placement
s u p e r v i s e d . When a module is removed, a trouble signal shall be
indicated.
Lamp Test:
All FACPs shall have a lamp test feature.
1.5.5
MANUAL STATIONS: S p e c i f y screw terminals for wiring
1.6
c o n n e c t i o n s for all manual stations. Do not specify Break-Glass-Front
t y p e stations or pull-lever, Break-Glass-Rod type stations.
WIRING
1.7
1.7.1
Layout of New Systems: All signal initiation and
n o t i f i c a t i o n circuits shall be Class A supervised. The return loop
(home run) for the wires to the FACP shall be in a separate conduit
a n d stated so in either the specifications or on the plans. Fire
alarm riser diagrams shall show return conduits. Contract drawings
shall also show either a matrix diagram or logic diagram for operation
o f all system devices.
1.7.2
Adding to an Existing System: When adding to an
existing Class B supervised system, Class B wiring may be used.
Drawings shall indicate manufacturer, model no., voltage and wiring
C l a s s for all existing systems.
Conductors: Wiring for 24 Vdc fire alarm circuits shall
1.7.3
be no smaller than No. 16 AWG copper conductors. either solid or
stranded (maximum of 7 strands) per 1987 National Electric Code.
1.7.4
Electrical Conduit: Electrical conduit shall be rigid
metal, IMT or EMT. Do not use aluminum conduit. In hazardous areas
u s e rigid metal conduit only. The minimum size conduit shall be
- i n c h in diameter.
Voltage: The wiring of 120 Vac and 24 Vdc circuits
1.7.5
shall not be placed in the same conduit. Separate conduits shall be
used for 120 Vac and 24 Vdc circuits.
DOOR HOLD-OPEN DEVICES: 120 Vac door hold open devices
1.8
shall be provided when fire or smoke doors are expected to be propped
o p e n for convenience or as a necessity of building operation.
Regardless of the hold open method, all hold open devices in the same
building must release when any one hold open device is released in
accordance with NFPA 101. Section 5.2.1.8 (1985 edition). BOQs and
BEQs 2 to 5 stories in height without elevators shall be provided with
120 Vac door hold open devices on all i n t e r i o r stairwell doors. When
120 Vac devices are used. the 120 Vac power wires shall be installed
in separate conduit from the 24 Vdc conduit.
(3)
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