Art. 870.04 Fiber Optic Cable
a.In Trench. The cable shall be installed according to Article 810.04 and according to the manufacturer’s recommendations, except plowing will not be allowed.
b.In Raceway. Raceways shall be cleaned and freed of rough spots by reaming or other methods approved by the Engineer. All raceways shall be swabbed and blown clean with compressed air. Lubricating compounds approved by the cable manufacturer shall be used to facilitate installation of the cable in raceways. The manufacturer’s recommended allowable tension for the conductor or the allowable sidewall load, whichever is smaller, shall be used for maximum pulling tension. Cable pulling apparatus shall have no sharp edges or protrusions which could damage cables or raceways.
870.04 Method of Measurement. Cable will be measured for payment
according to Article 817.04.
870.05 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for ELECTRIC CABLE ASSEMBLY IN CONDUIT, or TRENCH, 600V of the type, size, and number of conductors specified. SECTION 871. FIBER OPTIC CABLE
871.01 Description. This work shall consist of furnishing and installing all
accessories required and the fiber optic cable of the type, size, and number of fibers specified.
871.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Fiber Optic Cable ............................................................................... 1076.02
871.03 Contractor Qualifications. The fiber optic cable installation shall be
supervised by trained and experienced personnel. The cable terminations and splices shall be made by qualified technicians. Upon request by the Engineer, the Contractor shall provide documentation on qualifications and experience for fiber optic equipment installations. The Engineer will determine if the Contractor is qualified to perform the work. CONSTRUCTION REQUIREMENTS
871.04 Cable Installation. The fiber optic cable shall be installed in
continuous runs between controller cabinets or as marked on the plans. No splices shall be allowed outside the controller cabinet. The cable end shall be secured inside the controller cabinet so no load is applied to the exposed fiber strands. Cable Minimum Bend Radius. For static storage, the cable shall not be bent at any location to less than ten times the diameter of the cable outside diameter or as recommended by the manufacturer. During installation, the cable shall not be bent at Fiber Optic Cable Art. 871.04 any location to less than 15 times the diameter of the cable outside diameter or as recommended by the manufacturer. Extra Cable. Extra cable shall be left in each handhole and double handhole, at the top of each conduit riser, and at each wood support pole according to the following requirements. Storage of additional extra cable in each handhole shall be coiled. These coils shall be bound at a minimum of three points around the coil perimeter and supported in their static storage positions. Storage of additional cable adjacent to conduit risers and support poles shall be as detailed on the plans. The minimum of extra cable amounts shall be as follows. Location Extra Cable Length feet meters Gulfbox 10.0 3.0 Junction Box 10.0 3.0 Handhole 50.0 15.0 Double Handhole 100.0 30.0 Conduit Riser 100.0 30.0 Support Pole 100.0 30.0 Any Splice Location 100.0 30.0 Cable Termination. Field cable shall terminate in the controller cabinet within a wall-mounted distribution enclosure according to Article 864.03.
a.Installation in Conduits and Ducts. A suitable cable feeder guide shall be used between the cable reel and the face of the conduit/duct to protect the cable and to guide it into the conduit off the reel. The cable shall be carefully inspected for jacket defects. If defects are noticed, the pulling operation shall be stopped immediately and the Engineer shall be notified. Precautions shall be taken during installation to prevent the cable from being kinked or crushed. A pulling eye shall be attached to the cable and used to pull the cable through the conduit. A pulling swivel shall be used to eliminate twisting of the cable. As the cable is played off the reel into the cable feeder guide, it shall be lubricated as recommended by the cable manufacturer. The lubricant used shall be a water based type and approved by the cable manufacturer. Dynamometers or break away pulling swing shall be used to ensure that the pulling line tension does not exceed the installation tension specified by the cable manufacturer. Maximum length of cable pulling tensions shall not exceed the cable manufacturer’s recommendations. The mechanical stress placed on a cable during installation shall not be such that the cable is twisted or stretched. The pulling of the cable shall be hand assisted at each controller cabinet. The cable shall not be crushed, kinked, or forced around a sharp corner. A sufficient length of cable shall be left at each end of the cable to allow proper cable termination. At the controller cabinet and at the handhole the cable shall be visibly marked/tagged as “CAUTION-FIBER OPTIC CABLE”.
b.Installation on Aerial Spans. The fiber cable shall be lashed onto the aerial support span wire. The aerial support shall be existing span wire, or new span wire according to Section 872. When the existing interconnect is Art. 871.04 Span Wire and Tether Wire supported by messenger cable and hanger rings, the rings and interconnect cable shall be removed. Existing conduit risers designated for reuse with the fiber optic interconnect shall have the existing weatherhead removed. Removal of these items shall be included in the cost of the fiber optic cable. The fiber optic cable shall be secured to the support cable by lashing with a cable lasher. The lashing wire shall be a dielectric lashing filament to prevent the conductance or attraction of lightning. The lashing wire shall be securely tied off when terminated near each support pole.
c.Cable Placement into Conduit Risers. Kellum grips and/or other hanger devices shall be used to support the vertical drop of the cable and to prevent kinking of the cable after installation. The top of the risers shall have a hexnut type watertight service entrance connector with an oval shaped grommet. The grommet shall be either neoprene or rubber. The voids between the fiber optic cable(s) and the grommet shall be sealed with silicone. The fiber optic cable shall be tested according to Article 801.13(d).
871.05 Method of Measurement. Cable will be measured for payment in feet
(meters) in place. Cable will be measured horizontally and vertically between the changes in direction, including the cable in the vertical conduit riser and any extra cable as specified in Article 871.04. The cable length in the foundations of a controller cabinet and a vertical pole will be accounted as 3 ft (1 m) each.
871.06 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for FIBER OPTIC CABLE of the method of installation (in conduit or on messenger), of the type, size, and number of fibers specified. The cable warning tags will be included in the cost of the fiber optic cable. SECTION 872. SPAN WIRE AND TETHER WIRE
872.01 Description. This work shall consist of furnishing and installing span
wire or tether wire and accessories.
872.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Span Wire and Tether Wire ............................................................... 1076.03 CONSTRUCTION REQUIREMENTS
872.03 Installation. The span wire or tether wire with accessories shall be
installed according to the details shown on the plans.
872.04 Method of Measurement. Span wire and tether wire will be
measured for payment in feet (meters) in place. Measurements will be along the horizontal distances between the supporting poles. Electric Cable Art. 873.03
872.05 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for SPAN WIRE or TETHER WIRE. Any additional span wire or tether wire required for sag and wrap around shall be included in the cost of the wire specified. SECTION 873. ELECTRIC CABLE
873.01 Description. This work shall consist of furnishing and installing an
electric cable of the type, size, and number of conductors specified.
873.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Electric Cable – Signal, Lead-in, Communication, Service, and Equipment Grounding Conductor ............................................... 1076.04
b.Electrical Raceway Materials ............................................................. 1088.01 CONSTRUCTION REQUIREMENTS
873.03 Installation. The electric cable may be installed in a trench, in a
conduit, or aerially suspended, as indicated on the plans. When installed in a trench, the electric cable shall be installed at a depth of 24 to 30 in. (600 to 750 mm). The color coded conductor shall be connected according to the following schedule.
a.Signal Cable - Signal Head (5 Conductor or 7 Conductor) Conductor No. Base Color Tracer Color Connection 1 Black 2 White AC, Neutral 3 Red Red Circle Indication (AC,Line) 4 Green Green Circle Indication (AC,Line) 5 Orange Yellow Circle Indication (AC,Line) 6 Blue Yellow Arrow Indication (AC,Line) 7 White Black Green Arrow Indication (AC,Line)
b.Signal Cable - Pedestrian Signal Head Conductor No. Base Color Tracer Color Connection 1 Black 2 White AC, Neutral 3 Red Don't Walk (AC,Line) 4 Green Walk (AC,Line)
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 745–748 of 1,217. View official source ↗