2.2.13.3
Electrical Metallic Tubing (EMT)
NEMA C80.3 or UL 797.
2.2.13.4
Surface Metal Raceway and Fittings
**************************************************************************
NOTE: Specify surface raceways only for retrofit
projects where concealment of wire is impractical
and wiring is not subject to physical abuse.
**************************************************************************
UL 5, two-piece painted steel, totally enclosed snap-cover type.
2.2.14
Outlet Boxes
UL 514A, zinc-coated steel.
2.2.15
Fittings for Conduit and Outlet Boxes
UL 514B, zinc-coated steel.
2.2.16
Wiring
NFPA 70 and NFPA 72. Wire for 120V circuits shall be No. 12 AWG minimum
solid copper conductor. Wire for low voltage DC circuits shall be No. 14
AWG minimum solid copper conductor [except wire to remote annunciators, if
provided, shall be No. 18 AWG minimum solid copper conductor]. Wire for
connection to base telegraphic alarm loop, if provided, shall be No. [10]
[12] AWG minimum solid copper conductor. Insulation shall be 75 degree C
minimum with nylon jacket. [Cable from control panel to [master box]
[auxiliary transmitter] and to telegraphic loop shall be Type UF if
underground or in wet location.] Color code all wiring.
[2.3
SURGE SUPPRESSION
**************************************************************************
NOTE: Specify surge suppression for projects
administered by SOUTHNAVFACENGCOM and for high
lightning damage areas as directed by the EFD/EFA
Fire Protection Engineer.
**************************************************************************
Provide [line voltage] [and] [low voltage] surge suppression devices to
suppress all voltage transients which might damage the control panel [and
transmitter] components. Mount suppressors in separate enclosure(s)
adjacent to control panel [and transmitter] unless suppressors are
specifically UL listed or FM approved for mounting inside the control panel
[and transmitter] provided and approved for such use by the control panel
[and transmitter] manufacturer[s].
][2.3.1
Line Voltage Surge Suppressor
Suppressor shall be UL 1449 listed with a maximum 330 volt clamping level
and a maximum response time of 5 nanoseconds. Suppressor shall also meet
IEEE C62.41 category B tests for surge capacity. Suppressor shall be a
multi-stage construction which includes inductors and silicon avalanche
zener diodes. Suppressor shall have a long-life indicating lamp (light
emitting diode or neon lamp) which extinguishes upon failure of protection
SECTION 13852N
Page 33
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