System shall apply foam solution over the sprinkler discharge area for a
minimum of [_____] minutes [while simultaneously discharging foam solution
through monitors for a minimum of [_____] minutes]. Hose station discharge
time shall be a minimum of [_____] minutes. Reduction of the discharge
duration based on a discharge rate higher than the specified minimum is not
permitted.
2.3
ELECTRIC DETECTION SYSTEM
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NOTE: Electric detection system may be used with
all detector types specified in this guide
specification and are necessary for complex
controls. Delete electric detection system if
dry-pipe system is used.
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Provide electric [heat detectors,] [and] [smoke detectors,] [and]
[combination ultraviolet-infrared detectors]. All wiring shall be
supervised and installed in protective metal conduit or tubing.
2.3.1
Control Panel
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NOTE: Select either "Class B" or Class A"
supervision ("Style B" or "Style D" as defined by
NFPA 72). "Class B" supervision which will normally
be used, provides a trouble indication when a
failure occurs in a circuit. "Class A" supervision
provides a trouble indication when a fault occurs in
a circuit and at the same time allows continued
operation of that circuit. "Class A" supervision
should be used for strategically critical
facilities. Select first ("Class B") or second
("Class A") supervisory option accordingly.
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NOTE: Provide a remote trouble bell or buzzer in a
constantly attended area if the control panel is not
so located. Provide a trouble bell at the control
panel if the panel is located in a high noise area.
Coordinate location of remote trouble bell and
remote annunciator panel when both are provided.
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Modular type panel installed in a [flush] [surface] mounted steel cabinet
with hinged door and cylinder lock. Switches and other controls shall not
be accessible without the use of a key. The control panel shall be a neat,
compact, factory-wired assembly containing all parts and equipment required
to provide specified operating and supervisory functions of the system.
Panel cabinet shall be finished on the inside and outside with
factory-applied enamel finish. Provide main annunciator located on the
exterior of the cabinet door or visible through the cabinet door. Provide
audible trouble signal. Provide prominent engraved rigid plastic or metal
identification plates, or silk-screened labels attached to the rear face of
the panel viewing window, for all lamps and switches. System power shall
be 120 volts AC service, transformed through a two winding isolation
SECTION 13958N
Page 19
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