UNDERWRITERS LABORATORIES (UL)
UL 1581
(2001; Rev thru May 2003) Reference
Standard for Electrical Wires, Cables, and
Flexible Cords
UL 1666
(2000; Rev thru Jul 2002) Test for Flame
Propagation Height of Electrical and
Optical-Fiber Cables Installed Vertically
in Shafts
UL 969
(1995; Rev thru Nov 2001) Marking and
Labeling Systems
1.2
RELATED REQUIREMENTS
Section 16050N BASIC ELECTRICAL MATERIALS AND METHODS, applies to this
section with the additions and modifications specified herein.
1.3
DEFINITIONS
1.3.1
CATV
Community antenna television (CATV) system, commonly referred to as cable
television, is a network of cables, headend, electronic and passive
components that process and amplify television (TV) signals for
distribution from the headend equipment to the individual television
outlets.
1.3.2
Headend
The connection point between CATV system equipment and equipment provided
by the local CATV company.
1.3.3
Distribution System
Distribution system transports and delivers adequate signals to each
receiver. Provides distortion-free signal to TV sets by isolating each
receiver from the system and by providing proper amount of signal to each
set.
1.3.4
Cable
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NOTE: Delete the first bracketed item for single
housing units and small systems where trunk and
feeder cables are not used. Edit the last sentence
accordingly.
**************************************************************************
[Trunk and feeder cables are low-loss cables used to transport the desired
signal from the headend equipment to the communications closet in the area
to be served. These cables are used to transport signal from the
[communications closet][headend equipment] into close proximity to a number
of user locations in excess of 60 meters 200 feet from the [communications
closet][headend equipment]. ]Drop cables are used to transport the desired
signal used from the [communications closet][headend equipment] to the wall
outlet.
SECTION 16783N
Page 5