11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

The Contractor shall document the transmission quality test results for 50% of the pairs in each cable of the installed TWP cable and provide documentation for each cable that the cable meets or exceeds the manufacturer's published specifications and otherwise complies with the requirements set forth in this specification for characteristic impedance, longitudinal balance, resistive and impedance losses, and near-end crosstalk. The Contractor shall provide the Engineer with the manufacturer and model number of the test equipment and the equipment calibration procedures to be used prior to conducting all tests. The Contractor shall test each underground cable end-to-end from the controlled environment vault-termination block to the terminal block at each cable pedestal or other outside plant terminal equipment. The Contractor shall provide actual test readings for each of the following items to verify the required transmission criteria: DC Resistance -The resistance of any conductor in any cable shall not exceed 20 52 ohms per 1000 feet. DC Resistance Unbalance-The resistance unbalance between the two conductors 3 of any pair shall not exceed 5%. Ambient Noise Measurements - The Contractor shall measure the ambient noise 6 level in dBmO to determine the level of noise on each cable being tested. The distant end of the pair being tested should be terminated with a 600-ohm resistor. At the near end, an HP-3551 or equivalent transmission measuring set should be configured for conducting a noise reading test. Cable pairs being sampled shall provide an ambient noise figure of 30 DbmO (-60 dBm) or better. The Contractor shall record all readings. Shield Continuity - Test and measurements shall be made to assure that all underground cable shields are continuous from end-to-end. Each shield shall show a resistance of not more than .75 ohms per 1000 feet. Within 30 days of submitting the test results, the Contractor, in the presence of the Engineer, shall re-test a minimum of 5% of the previously tested locations to validate the test results.A 5% sample will be selected randomly from the terminal device locations. 9-29.6 Light And Signal Standards Section 9-29.6 is supplemented with the following: Traffic signal standards shall be furnished and installed in accordance with the methods and materials noted in the applicable Standard Plans, pre-approved plans, or special design plans. All welds shall comply with the latest AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals. Welding inspection shall comply with Section 6-03.3(25)A Welding Inspection. Hardened washers shall be used with all signal arm connecting bolts instead of Iockwashers. All signal arm ASTM A 325 connecting bolts tightening shall comply with Section 6-03-3(33). Traffic signal standard types and applicable characteristics are as follows: Swift Green Line—Corridor Stations Special Provisions SP196 May 2017