spaces and in interior hollow gypsum board
partitions. Conceal raceways and wiring except
in unfinished spaces and as indicated. Minimum
raceway size shall be 3/4
inch (19.1 mm).
Control and data transmission wiring shall not
share conduit with other building wiring systems.
B. Wiring within Enclosures: Bundle, lace, and
train conductors to terminal points. Use lacing
bars and distribution spools. Separate power-
limited and non-power-limited conductors as
recommended in writing by manufacturer. Install
conductors parallel with or at right angles to
sides and back of enclosure. Connect conductors
that are terminated, spliced, or interrupted in
any enclosure associated with intrusion system to
terminal blocks. Mark each terminal according to
system's wiring diagrams. Make all connections
with approved crimp-on terminal spade lugs,
pressure-type terminal blocks, or plug
connectors.
C. Wires and Cables:
1. Conductors: Size as recommended in writing
by system manufacturer, unless otherwise
indicated.
2. 120-V Power Wiring: Install according to
the NEC code.
3. Control and Signal Transmission Conductors:
Install unshielded, twisted-pair cable,
unless otherwise indicated or if
manufacturer recommends shielded cable.
D. Splices, Taps, and Terminations: Make
connections only on numbered terminal strips in
junction, pull, and outlet boxes; terminal
cabinets; and equipment enclosures.
E. Connections: Comply with torque-tightening
values specified in UL 486A.
F. Install power supplies and other auxiliary
components for detection devices at control
units, unless otherwise indicated or required by
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