2.6.5
Wiring
Provide solid copper [______] wiring in accordance with NFPA 70. Obtain ac
primary power for control panel, battery charger[, and air compressor] from
the line side of the incoming building power source ahead of all building
services [at the location indicated]. Provide independent, properly fused
safety switches, with provisions for locking the covers and operating
handles in the POWER ON position for such connections; locate switches
adjacent to main distribution panel. Paint the switch boxes red and
identify by a permanent lettered designation. Wiring and devices exposed
to the water deluge shall be weatherproof type. Wiring and devices in
hazardous atmosphere shall be explosion-proof type. [Wire for 120-volt
circuits shall be No. 12 AWG minimum.] Wire for low-voltage dc circuits
shall be No. [14] [16] AWG minimum. Provide wiring in rigid metal conduit,
intermediate metal conduit, or electrical metallic tubing. Identify
circuit conductors within each enclosure where a tap, splice, or
termination is made. Identify conductor by plastic coated, self-sticking
printed markers or by heat-shrink type sleeves. Attach and secure markers
to prevent accidental detachment. Properly identify control circuit
terminations.
2.6.6
Supervision
[Preaction sprinkler piping] [and] [pneumatic detection system] and
[deluge] [preaction] valve electric releases shall be supervised. A break
in the piping or tubing systems resulting in loss of pneumatic pressure
shall activate trouble alarm. Provide a silencing switch which transfers
trouble signals to an indicating lamp; arrange so that correction of the
trouble condition will automatically transfer the trouble signal from the
indicating lamp back to the trouble alarm until the switch is restored to
normal position. Supervisory air pressure shall not exceed 10 psig.
2.6.7
Manual Remote Release Stations
Stations shall be [surface] [semiflush]-mounted. Stations shall not be
subject to operation by jarring or vibration. Break-glass-front stations
will not be permitted; however, a pull-lever, break-glass-rod type is
acceptable. Station color shall be yellow [_____]. Display operating
instructions on face of station in engraved or raised letters of
contrasting color. Provide permanent metal or engraved plastic signs
mounted above or beside each station, indicating which system that station
controls. Lettering shall be a minimum of 38 mm 1.5 inches high. Station
shall provide positive indication of operation. Restoration of station
shall be accomplished only by means of a key or special tool.
2.7
ALARMS
[2.7.1
Water Motor Alarms
Provide alarms of the approved weatherproof and guarded type, to sound
locally on the flow of water in each corresponding sprinkler system. Mount
alarms on the outside of the outer walls of each building, at a location as
[directed] [indicated].
]2.7.2
Local Alarm
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NOTE: Delete if a building fire alarm system is
provided.
SECTION 13945N
Page 19
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