protective covering shall be free from holes, splits, blisters, and other
imperfections. All interior cables' insulation and jacketing material
shall not contain any poly vinyl chloride (PVC) compounds. The covering
shall be flame retardant, moisture resistant, non-nutrient to fungus,
ultraviolet light resistant as specified and nontoxic. Mechanical stress
present in cable shall not be transmitted to the optical fibers. Strength
members shall be non-metallic and shall be an integral part of the cable
construction. The combined strength of all the strength members shall be
sufficient to support the stress of installation and to protect the cable
in service. The exterior cables shall have a minimum storage temperature
range of minus 40 to plus 75 degrees C minus 104 to plus 167 degrees F.
Interior cables shall have a minimum storage temperature of minus 10 to
plus 75 degrees C plus 14 to plus 167 degrees F. All optical fiber cables
and all optical fiber raceways furnished shall meet the requirement of NFPA
70. Fire resistant characteristics of optical fiber cables and optical
fiber raceways shall conform to Article 770, Sections 49, 50, and 51. A
flooding compound shall be applied into the interior of the fiber tubes,
into the interstitial spaces between the tubes, to the core covering, and
between the core covering and jacket of all cable to be installed aerially,
underground, and in locations susceptible to moisture. Flooded cables
shall comply with EIA ANSI/EIA-455-81A-91 and EIA ANSI/EIA/TIA-455-82B.
Cables shall be from the same manufacturer, of the same cable type, of the
same size, and of the same optical characteristics. Each fiber and
protective coverings shall be continuous with no factory splices. Fiber
by the manufacturer to have a minimum life of 30 years. Cables shall meet
UL 1666. FO cable shall be certified to meet the following: EIA
ANSI/TIA/EIA-455-13A, EIA ANSI/EIA/TIA-455-25C, EIA ANSI/TIA/EIA-455-41A,
EIA ANSI/EIA/TIA-455-47B, EIA ANSI/EIA/TIA-455-59A, EIA ANSI/EIA/TIA-455-61A,
EIA-455-88, EIA ANSI/EIA-455-91, EIA TIA/EIA-455-104A, and EIA
ANSI/EIA-455-171.
2.16.2
Exterior Cable
2.16.2.1
Aerial Cable
The optical fibers shall be surrounded by a tube buffer, shall be contained
in a channel or otherwise loosely packaged to provide clearance between the
fibers and inside of the container, and shall be extruded from a material
having a coefficient of friction sufficiently low to allow the fiber free
movement.
a. The cable outer jacket shall be medium density polyethylene material
containing at least 2.6 percent carbon black with only black pigment
added for additional coloring.
b. Tensile strength: Cables shall withstand an installation tensile
load of not less than 2700 Newtons 608 pounds and not less than 600
Newtons 135 pounds continuous tensile load.
c. Impact and Crush resistance: The cables shall withstand an impact
of 3 Newton-meters 1.7 lbs/in as a minimum, and shall have a crush
resistance of 220 Newtons per square centimeter 317 psi as a minimum.
2.16.2.2
Duct Cable
The optical fibers shall be surrounded by a tube buffer, shall be contained
in a channel or otherwise loosely packaged to provide clearance between the
fibers and inside of the container, and shall be extruded from a material
SECTION 16768A
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