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SECTION 16732

TWP COMMUNICATION CABLE

PART 1  GENERAL

SECTION INCLUDES

This specification shall govern for the materials, installation and
testing procedures for twisted-pair communication cable used between
elements of a computerized traffic signal system.

1.02 TELEPHONE HAND SETS & JACKS

If specified in the drawings, plug-in telephone hand sets shall be
provided for use in communicating between the central master controller
and the intersection controllers.

Jacks
for plug-in telephone hand sets shall be provided at the central master
and at each intersection controller.

UNIT PRICES



Measurement

Communication cable of the
type and sizes specified on the drawings will be measured by the linear
foot complete in place, the measurement being made along the conduit
or messenger strand.

Payment

Communicable Cable, measured
as provided under "Measurement", will be paid for at the unit
price bid for "Communication Cable", of the specified size
and type, which price shall be full compensation for furnishing and
installing all cable including messenger strand, for pulling through
conduit or attaching to overhead messenger strand, excavating and backfilling
the trenches, replacing base, seal, riprap, pavement, sod, or other
surface treatment; and for all labor, tools, equipment and incidentals
necessary to complete the work.

PART 2  PRODUCTS

MATERIALS



The multiconductor cable shall be a low density,
high molecular weight polyethylene, aluminum shielded, telephone cable
with standard twisted pairings of 19 AWG copper conductors.  The number of
installed working pairs shall be as shown in the drawings.  The
following requirements shall be met for underground and aerial cable.




Underground.  The cable shall be gopher-resistant
with 0.008 inch aluminum sh</span><span class="Normal--Char" style=" font-family: 'Arial', 'Arial';
font-size: 12pt;">ielded, single-jacketed, and have a filled core (for
moisture resistance).  The cable shall conform to the latest revision(s)
of the REA (Rural Electrification Administration) "Specification
for Filled Telephone Cables", No. PE-39.




Aerial.  For aerial ins</span><span class="Normal--Char" style=" font-family: 'Arial', 'Arial';
font-size: 12pt;">tallation, one of the following two types of cable
will be furnished as called for in the drawings:



The cable shall have a 0.008 inch aluminum shield
and be single jacketed and include an integral messenger strand. 
The cable shall conform to the latest r</span><span class="Normal--Char" style=" font-family: 'Arial', 'Arial';
font-size: 12pt;">evision(s) of REA "Specification for Self Supporting
Cable", PE-38.


The cable shall have a 0.008 inch aluminum shield
and be single jacketed and shall be supported by an external messenger
strand conforming to the Special Specification "Zinc-Coated Steel Wire Strand for Use as Overhead Ground, Guy, Span or Messenger Wire",
except for Measurement and Payment.  The cable shall conform to
the latest revision(s) of the REA "Specification for Aerial Telephone
Cable", No. PE-22.

If the type of aerial cable to be used is not specified in the drawings,
the cable with the integral messenger strands shall be used.

PART 3  EXECUTION

3.01 INSTALLATION

Installation of the communication cable shall be made by the Contractor
in accordance with applicable portions of the latest revision of the
following REA specifications:

REA FORM 515D.  Specifications and Drawings
for Underground Cable Installation, Part III.




REA FORM 515F.  Specifications and Drawings
for Construction of Pole Lines, Aerial Cables and Wires, Part III.

Installation shall also be in accordance with the latest revision
of the National Electrical Safety Code and the National Electrical Code
(and to the applicable interpretations provided by REA Section 602,
Issue 4, Addendum 1, dated September, 1963) in every case except where
local regulations are more stringent, in which case local regulations
shall govern.

The Contractor is responsible for the complete installation of the
communication cable.  The Contractor shall terminate every cable
run which enters a cabinet on a cable termination strip as shown on
the drawings.

SPLICING

All cable splices, including splice enclosures and encapsulations,
shall be in accordance with the requirements of the REA "Standard
for Splicing Plastic Insulated Cables", PC-2, latest revision. 
All splicing, shield and jacket bonding, grounding, and testing shall
be in accordance with the REA Standard PC-2, National Electrical Safety
Code and National Electrical Code.

All cable splice locations shall be approved by the City Engineer. 
Splices for aerial cables will be permitted only in ready access enclosures
as shown in REA Standard PC-2.  The drawings will specify if and
where splices will be allowed.

Inspection, Testing & Test Reports



Pre-installation inspection of representative samples
of cable on reels shall be made by the Contractor and City Eng</span><span
class="Normal--Char" style=" font-family: 'Arial', 'Arial'; font-size: 12pt;
">ineer prior to installation.  The Contractor shall replace non-conforming
reels of cable.  The following pre-installations shall be made:



Inspection for proper cable identification on reel
identification labels by checking shield, number of pairs, gauge s</span><span
class="Normal--Char" style=" font-family: 'Arial', 'Arial'; font-size: 12pt;
">ize, jacket, etc.


Inspection for physical damage to cable and for wet
cable.


Check for the