the conductors shall be polyvinyl chloride (PVC) or an equivalent synthetic
thermoplastic not less than 0.2 mm 0.009 inch. Cables shall be jacketed
with a [PVC] [Fluoropolymer] compound. The jacket thickness shall be 0.5
mm 0.02 inch minimum.
2.15.2
Microphone Cable
Cable conductor shall be stranded copper 20 AWG. Insulation on the
conductors shall be polyvinyl chloride (PVC) or an equivalent synthetic
thermoplastic not less than 0.2 mm 0.009 inch. Cable shall be shielded
100% of aluminum polyester foil with a bare 22 gauge stranded soft copper
drain conductor. Cables shall be jacketed with a [PVC] [Fluoropolymer]
compound. The jacket thickness shall be 0.5 mm 0.02 inch minimum.
2.15.3
Antenna Cable
Antenna coaxial cable shall have 75 ohm plus or minus 2 ohm. Attenuation
of the coaxial cable span between the antenna and amplifier shall not
exceed 2.5 dB at 108 MHz.
2.16
TERMINALS
Terminals shall be [solderless, tool-crimped pressure] [or] [_____] type.
2.17
SURGE PROTECTION
2.17.1
Power Line Surge Protection
Major components of the system such as power amplifiers,
mixer-preamplifiers, and tuners, shall have a device, whether internal or
external, which provides protection against voltage spikes and current
surges originating from commercial power sources per IEEE C62.41 B3
combination waveform and NFPA 70. Fuses shall not be used for surge
protection. The surge protector shall be rated for a maximum let thru
voltage of 350 Volts ac (line-to-neutral) and 350 Volt ac
(neutral-to-ground). Surge protection device shall be UL listed and
labeled as having been tested in accordance with UL 1449.
2.17.2
SIGNAL SURGE PROTECTION
Major components of the system shall have internal protection circuits
which protects the component from mismatched loads, direct current, and
shorted output lines. Communication cables/conductors shall have surge
protection installed at each point where it exits or enters a building.
2.18
TELEPHONE INTERFACE MODULE
**************************************************************************
NOTE: Telephone Interface module may be used to
access PA system from telephone in conjuction or
lieu of microphone. If there is a requirement to
integrate Telephone Interface module to the PA
system, assure that the necessary inputs and
interfaces are included in this specification.
**************************************************************************
Telephone Interface module shall provide one way all call paging access
from telephone to PA system. Paging shall be accomplished by the building
SECTION 16770
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