Contract - INDOT - Traffic Signal Maintenance

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The reference points shall include: connection points in controllers, base and top of conduit risers, handholes, junctions with intermediate poles, centerlines of named streets and roads, and any other well defined points as directed. MATERIALS AND COMPONENTS Cable General: The fiber optic cable shall contain 6 stranded multimode, graded index, optical fibers with a minimum of one non-metallic central strength member. The cable shall be loose tube, all dielectric construction, suitable for outdoor use in conduit or on aerial supports. Each individual fiber shall be 62.5/125 micron diameter (core/clad), and each fiber shall be individually encased in its own gel -filled color -coded buffer. The fiber optic cable shall be constructed with Kevlar braid and outer polyethylene jackets as a minimum. IF an inner jacket is used it shall be PVC. Maximum attenuation of the cable shall be 4.0 dB/Km nominal, measured at room temperature at 850 nm. The bandwidth shall not be less that 160 MHz/Km also at 850 nm. Each fiber shall be continuous with no factory splices except for jointing standard length cables to form longer, continuous jacketed cable to fit installation requirements. The cable shall have standard nylon rip cords or distinctively different color Kevlar rip cords (like red). The cable shall meet the generic requirements for optical fiber and optical fiber cable per Bellcore Technical Reference TR-TSY-000020. The exterior of the polyethylene outer cable jacket shall be stenciled so that every 5w meter on each reel is marked with a number. The 5th meter of each reel shall be marked with a 5, the 10th meter marked with a 10, and so on until the end of the reel. The stencil shall be applied to the outer jacket using permanent ink and shall be permanently engraved into the jacket to provide long-lasting readability. Warning Tape: Plastic marking tape shall be acid and alkali resistant polyethylene film, 3 inches (77 mm) wide with minimum thickness of 0.004 of an inch (0.102 mm). The tape shall be of a type specifically manufactured for marking and locating underground utilities. Tape color shall be orange and shall bear a continuous printed inscription "CAUTION -FIBER OPTIC CABLE". Cleaving Tool: The cleaving device shall be a T&B Cleaving Tool - catalog no. 92208 or approved equal. Warning Tape: Where conduit is installed in an open trenched warning tape shall be installed directly above the conduit at a depth of twelve inches below finished grade unless otherwise approved by the Engineer. Cable: The Fiber Optic cable shall be installed in continuous runs as indicated on the plans. Splices shall be allowed only in controller cabinets between the end of the fiber optic interconnect cable and a factory manufactured pigtail assembly. Cable Installed in Ducts and Conduits: A suitable cable feeder guide shall be used between the cable reel and the face of the duct and conduit to protect the cable and guide it into the duct off the reel. It shall be carefully inspected for jacket defects. If defects are noticed, the pulling operation shall be stopped immediately and the Engineer 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 duct and conduit system. A pulling swivel shall be used to eliminate Page 47 of 53 Pages